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Wang L, Shao J, Dong WW, Zheng SS, Zhu BQ, Shu Q, Chen W, Fan LC, Sun J, Gao Y, Hu YF, Wang NR, Wang ZH, Niu TT, Luo Y, Gao J, Tong ML, Hu Y, Xiang W, Zhao ZY, Mao M, Jiang F. [Epidemiological investigation of iron deficiency among preschool children in 10 provinces, autonomous regions, or municipalities in China]. Zhonghua Er Ke Za Zhi 2024; 62:416-422. [PMID: 38623008 DOI: 10.3760/cma.j.cn112140-20240131-00086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Objective: To understand the current status of anemia, iron deficiency, and iron-deficiency anemia among preschool children in China. Methods: A cross-sectional study was conducted with a multi-stage stratified sampling method to select 150 streets or townships from 10 Chinese provinces, autonomous regions, or municipalities (East: Jiangsu, Zhejiang, Shandong, and Hainan; Central: Henan; West: Chongqing, Shaanxi, Guizhou, and Xinjiang; Northeast: Liaoning). From May 2022 to April 2023, a total of 21 470 children, including community-based children aged 0.5 to<3.0 years receiving child health care and kindergarten-based children aged 3.0 to<7.0 years, were surveyed. They were divided into 3 age groups: infants (0.5 to<1.0 year), toddlers (1.0 to<3.0 years), and preschoolers (3.0 to<7.0 years). Basic information such as sex and date of birth of the children was collected, and peripheral blood samples were obtained for routine blood tests and serum ferritin measurement. The prevalence rates of anemia, iron deficiency, and iron-deficiency anemia were analyzed, and the prevalence rate differences were compared among different ages, sex, urban and rural areas, and regions using the chi-square test. Results: A total of 21 460 valid responses were collected, including 10 780 boys (50.2%). The number of infants, toddlers, and preschoolers were 2 645 (12.3%), 6 244 (29.1%), and 12 571 (58.6%), respectively. The hemoglobin level was (126.7±14.8) g/L, and the serum ferritin level was 32.3 (18.5, 50.1) μg/L. The overall rates of anemia, iron deficiency, and iron-deficiency anemia were 10.4% (2 230/21 460), 28.3% (6 070/21 460), and 3.9% (845/21 460), respectively. The prevalence rate of anemia was higher for boys than for girls (10.9% (1 173/10 780) vs. 9.9% (1 057/10 680), χ2=5.58, P=0.018), with statistically significant differences in the rates for infants, toddlers and preschoolers (18.0% (475/2 645), 10.6% (662/6 244), and 8.7% (1 093/12 571), respectively, χ2=201.81, P<0.01), and the rate was significantly higher for children in rural than that in urban area (11.8% (1 516/12 883) vs. 8.3% (714/8 577), χ2=65.54, P<0.01), with statistically significant differences in the rates by region (χ2=126.60, P<0.01), with the highest rate of 15.8% (343/2 173) for children in Central region, and the lowest rate of 5.3% (108/2 053) in Northeastern region. The prevalence rates of iron deficiency were 33.8% (895/2 645), 32.2% (2 011/6 244), and 25.2% (3 164/12 571) in infants, toddlers, and preschoolers, respectively, and 30.0% (3 229/10 780) in boys vs. 26.6% (2 841/10 680) in girls, 21.7% (1 913/8 821), 40.0% (870/2 173), 27.1% (2 283/8 413), 48.9% (1 004/2 053) in Eastern, Central, Western, and Northeastern regions, respectively, and each between-group showed a significant statistical difference (χ2=147.71, 29.73, 773.02, all P<0.01). The prevalence rate of iron-deficiency anemia showed a significant statistical difference between urban and rural areas, 2.9% (251/8 577) vs. 4.6% (594/12 883) (χ2=38.62, P<0.01), while the difference in iron deficiency prevalence was not significant (χ2=0.51, P=0.476). Conclusions: There has been a notable improvement in iron deficiency and iron-deficiency anemia among preschool children in China, but the situation remains concerning. Particular attention should be paid to the prevention and control of iron deficiency and iron-deficiency anemia, especially among infants and children in the Central, Western, and Northeastern regions of China.
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Affiliation(s)
- L Wang
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - J Shao
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - W W Dong
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - S S Zheng
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - B Q Zhu
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Q Shu
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - W Chen
- Department of Child Health Care, the Third Affiliated Hospital of Zhengzhou University (Maternal and Child Health Hospital of Henan Province), Zhengzhou 450052, China
| | - L C Fan
- Department of Child Health Care, Hainan Women and Children's Medical Center, Haikou 570206, China
| | - J Sun
- Department of Child Health Medicine, Dalian Women and Children's Medical Group, Dalian 116033, China
| | - Y Gao
- Department of Child Health Care, Urumqi Maternal and Child Health Hospital, Urumqi 830001, China
| | - Y F Hu
- Department of Children's Health Care, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Jiangsu Women and Children Health Hospital, Nanjing 210036, China
| | - N R Wang
- Department of Child Health Care, Chongqing Health Center for Women and Children, Women and Children's Hospital of Chongqing Medical University, Chongqing 401147, China
| | - Z H Wang
- Health Center of the Children, Xi'an People's Hospital (Xi'an Fourth Hospital), Xi'an 710004, China
| | - T T Niu
- Department of Child Health Care, Maternal and Child Health Care Hospital of Shandong Province, Jinan 250014, China
| | - Y Luo
- Department of Child Health Care, Guiyang Maternal and Child Health Care Hospital, Guiyang 550001, China
| | - J Gao
- Department of Hematology/Oncology, West China Second University Hospital, Sichuan University, National Health Commission Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
| | - M L Tong
- Department of Child Health Care, Women's Hospital of Nanjing Medical University (Nanjing Women and Children's Healthcare Hospital), Nanjing 210004, China
| | - Y Hu
- Health Care Center, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - W Xiang
- Department of Child Health Care, Hainan Women and Children's Medical Center, Haikou 570206, China
| | - Z Y Zhao
- Department of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - M Mao
- Department of Child Health Care, West China Second University Hospital, Sichun University, Chengdu 610041, China
| | - F Jiang
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, National Children's Medical Center, Shanghai 200127, China
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Li B, Yang M, Wang X, Chen W, Lu H, Wang G, Sun L, Liu X, Zuo X, Li P, Liu L, Zhang X. A fully validated LC‑MS/MS method for quantifying bevacizumab in plasma samples from patients with NSCLC and its implications in therapeutic drug monitoring. Oncol Lett 2024; 27:223. [PMID: 38590311 PMCID: PMC10999784 DOI: 10.3892/ol.2024.14356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 02/23/2024] [Indexed: 04/10/2024] Open
Abstract
Given the increasing use of bevacizumab in combinatorial drug therapy for a multitude of different cancer types, there is a need for therapeutic drug monitoring to analyze the possible correlation between drug trough concentration, and therapeutic effect and adverse reactions. An ultra-performance liquid chromatography tandem-mass spectrometry method was then developed and validated to determine bevacizumab levels in human plasma samples. Chromatographic separation was achieved on a Shimadzu InertSustainBio C18 HP column, whereas subsequent mass spectrometric analysis was performed using a Shimadzu 8050CL triple quadrupole mass spectrometer equipped with an electro-spray ionization source in the positive ion mode. In total, three multiple reaction monitoring transitions of each of the surrogate peptides were chosen with 'FTFSLDTSK' applied as the quantification peptide whereas 'VLIYFTSSLHSGVPSR' and 'STAYLQMNSLR' were designated as the verification peptides using the Skyline software. This analytical method was then fully validated, with specificity, linearity, lower limit of quantitation, accuracy, precision, stability, matrix effect and recovery calculated. The linearity of this method was developed to be within the concentration range 5-400 µg/ml for bevacizumab in human plasma. Subsequently, eight patients with non-small cell lung cancer (NSCLC) were recruited and injected with bevacizumab over three periods of treatment to analyze their steady-state trough concentration and differences. To conclude, the results of the present study suggest that bevacizumab can be monitored in a therapeutic setting in patients with NSCLC.
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Affiliation(s)
- Bo Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Meng Yang
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Xiaoxue Wang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Hongkai Lu
- Department of Blood Transfusion, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Guan Wang
- Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, Innovation Center of Nursing Research, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Liang Sun
- Department of Analysis and Testing, Shimadzu (China) Co., Ltd., Beijing 100020, P.R. China
| | - Xiaoyang Liu
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P.R. China
| | - Xianbo Zuo
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Pengmei Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Lihong Liu
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Xianglin Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
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Yu H, Li F, Yang B, Qi Y, Guneri D, Chen W, Waller ZAE, Li K, Ding Y. iM-Seeker: a webserver for DNA i-motifs prediction and scoring via automated machine learning. Nucleic Acids Res 2024:gkae315. [PMID: 38676949 DOI: 10.1093/nar/gkae315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/27/2024] [Accepted: 04/11/2024] [Indexed: 04/29/2024] Open
Abstract
DNA, beyond its canonical B-form double helix, adopts various alternative conformations, among which the i-motif, emerging in cytosine-rich sequences under acidic conditions, holds significant biological implications in transcription modulation and telomere biology. Despite recognizing the crucial role of i-motifs, predictive software for i-motif forming sequences has been limited. Addressing this gap, we introduce 'iM-Seeker', an innovative computational platform designed for the prediction and evaluation of i-motifs. iM-Seeker exhibits the capability to identify potential i-motifs within DNA segments or entire genomes, calculating stability scores for each predicted i-motif based on parameters such as the cytosine tracts number, loop lengths, and sequence composition. Furthermore, the webserver leverages automated machine learning (AutoML) to effortlessly fine-tune the optimal i-motif scoring model, incorporating user-supplied experimental data and customised features. As an advanced, versatile approach, 'iM-Seeker' promises to advance genomic research, highlighting the potential of i-motifs in cell biology and therapeutic applications. The webserver is freely available at https://im-seeker.org.
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Affiliation(s)
- Haopeng Yu
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Fan Li
- Department of Computer Science, University of Exeter, Exeter EX4 4QF, UK
| | - Bibo Yang
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Yiman Qi
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Dilek Guneri
- School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Wenqian Chen
- School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Zoë A E Waller
- School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Ke Li
- Department of Computer Science, University of Exeter, Exeter EX4 4QF, UK
| | - Yiliang Ding
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
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Wang D, Li W, Zhou M, Ma J, Guo Y, Yuan J, He M, Zhang X, Chen W. Association of the triglyceride-glucose index variability with blood pressure and hypertension: a cohort study. QJM 2024; 117:277-282. [PMID: 37950450 DOI: 10.1093/qjmed/hcad252] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/16/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Several studies have indicated that the triglyceride-glucose index (TyG) index is associated with hypertension; however, evidence on the association of change in the TyG index with blood pressure and hypertension is limited. AIMS To assess the association of the TyG index with blood pressure and hypertension. DESIGN A cohort study. METHODS We included 17 977 individuals with a mean age of 60.5 years from the Dongfeng-Tongji cohort. The TyG index was calculated as ln [fasting triglyceride (mg/dl)×fasting glucose (mg/dl)/2]. Hypertension was defined as blood pressure ≥140/90 mmHg, self-reported current use of antihypertensive medication or self-reported physician diagnosis of hypertension. RESULTS In the longitudinal analyses, we found a linear dose-response relationship between changes in the TyG index and change in blood pressure. Each one-unit change in the TyG index was associated with a 1.93 (1.23-2.63) mmHg increase in systolic blood pressure (SBP) and a 1.78 (1.42-2.16) mmHg increase in diastolic blood pressure (DBP). During a median follow-up of 9.37 years, a total of 3594 individuals were newly diagnosed with hypertension. We also found a linear dose-response relationship between the TyG index and the incidence of hypertension. The hazard ratio (HR) of hypertension for each one-unit increase in the TyG index was 1.21 (1.13-1.29). In addition, the best cut-off point of TyG for predicting hypertension was 8.4797, with sensitivity, and specificity of 57.85% and 55.40%, respectively. CONCLUSIONS The TyG index had a positive dose-response relationship with blood pressure and could be used to predict the risk of hypertension.
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Affiliation(s)
- D Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - W Li
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - M Zhou
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - J Ma
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Y Guo
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - J Yuan
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - M He
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - X Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - W Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
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Hu H, Ma J, Peng Y, Feng R, Luo C, Zhang M, Tao Z, Chen L, Zhang T, Chen W, Yin Q, Zhai J, Chen J, Yin A, Wang CC, Zhong M. Thrombospondin-1 Regulates Trophoblast Necroptosis via NEDD4-Mediated Ubiquitination of TAK1 in Preeclampsia. Adv Sci (Weinh) 2024:e2309002. [PMID: 38569496 DOI: 10.1002/advs.202309002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/05/2024] [Indexed: 04/05/2024]
Abstract
Preeclampsia (PE) is considered as a disease of placental origin. However, the specific mechanism of placental abnormalities remains elusive. This study identified thrombospondin-1 (THBS1) is downregulated in preeclamptic placentae and negatively correlated with blood pressure. Functional studies show that THBS1 knockdown inhibits proliferation, migration, and invasion and increases the cycle arrest and apoptosis rate of HTR8/SVneo cells. Importantly, THBS1 silencing induces necroptosis in HTR8/SVneo cells, accompanied by the release of damage-associated molecular patterns (DAMPs). Necroptosis inhibitors necrostatin-1 and GSK'872 restore the trophoblast survival while pan-caspase inhibitor Z-VAD-FMK has no effect. Mechanistically, the results show that THBS1 interacts with transforming growth factor B-activated kinase 1 (TAK1), which is a central modulator of necroptosis quiescence and affects its stability. Moreover, THBS1 silencing up-regulates the expression of neuronal precursor cell-expressed developmentally down-regulated 4 (NEDD4), which acts as an E3 ligase of TAK1 and catalyzes K48-linked ubiquitination of TAK1 in HTR8/SVneo cells. Besides, THBS1 attenuates PE phenotypes and improves the placental necroptosis in vivo. Taken together, the down-regulation of THBS1 destabilizes TAK1 by activating NEDD4-mediated, K48-linked TAK1 ubiquitination and promotes necroptosis and DAMPs release in trophoblast cells, thus participating in the pathogenesis of PE.
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Affiliation(s)
- Haoyue Hu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jing Ma
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - You Peng
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Rixuan Feng
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Chenling Luo
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Minyi Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Zixin Tao
- Department of Obstetrics and Gynecology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510180, China
| | - Lu Chen
- Department of Obstetrics and Gynaecology;, Li Ka Shing Institute of Health Sciences;, School of Biomedical Sciences;, Chinese University of Hong Kong-Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong Kong, Hong Kong SAR, NT, China
| | - Tao Zhang
- Department of Obstetrics and Gynaecology;, Li Ka Shing Institute of Health Sciences;, School of Biomedical Sciences;, Chinese University of Hong Kong-Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong Kong, Hong Kong SAR, NT, China
| | - Wenqian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Qian Yin
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jinguo Zhai
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jun Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Ailan Yin
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology;, Li Ka Shing Institute of Health Sciences;, School of Biomedical Sciences;, Chinese University of Hong Kong-Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong Kong, Hong Kong SAR, NT, China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
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Zhang F, Xu J, Wang XX, Cheng YQ, Chen W. [Magnetic resonance imaging T 2 mapping could reflect disease status in patients with dermatomyositis or polymyositis]. Zhonghua Nei Ke Za Zhi 2024; 63:401-405. [PMID: 38561286 DOI: 10.3760/cma.j.cn112138-20231014-00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
This study aimed to explore the value of magnetic resonance imaging (MRI) T2 mapping in the assessment of dermatomyositis (DM) and polymyositis (PM). Thirty-three confirmed cases (myosin group) and eight healthy volunteers (healthy control group) at the Department of Rheumatology and Immunology, the First Affiliated Hospital of Kunming Medical University, from October 2016 to December 2017, were collected and analyzed. Multiple parameters of the myosin group were quantified, including creatine kinase (CK), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), complement C3, and complement C4. Disease status was evaluated using a panel of tools: myositis disease activity assessment tool-muscle (MDAAT-muscle), myositis disease activity assessment tool-whole (MDAAT-all), health assessment questionnaire (HAQ), medical outcomes study health survey short form-36 item (SF-36), hand muscle strength test (MMT-8) score, and MRI T2 mapping of muscle (22 muscles in the pelvis and thighs) T2 values. The results showed that in the myositis group, the measurements for CK, ESR, CRP, complement C3, and complement C4 were 457.2 (165.6, 1 229.2) IU/L, 20 (10, 42) mm/1h, 3.25 (2.38, 10.07) mg/L, 0.90 (0.83, 1.06) g/L, and 0.18 (0.14, 0.23) g/L, respectively. The scores for MMT-8, MDAAT-muscle, MDAAT-all, HAQ, and SF-36 were 57.12±16.23, 5.34 (4.00, 6.00), 34.63±12.62, 1.55 (0.66, 2.59), and 44.66±7.98, respectively. T2 values were significantly higher in all 22 muscles of the pelvis and thighs of patients with DM or PM compared with the healthy controls [(54.99±11.60)ms vs. (36.62±1.66)ms, P<0.001], with the most severe lesions in the satrorius, iliopsoas, piriformis, gluteus minimus, and gluteus medius muscles. The total muscle T2 value in the myositis group was positively correlated with CK, MDAAT-muscle, MDAAT-all, and HAQ (r=0.461, 0.506, 0.347, and 0.510, respectively, all P<0.05). There was a negative correlation between complement C4, SF-36, and MMT-8 scores (r=-0.424, -0.549, and -0.686, respectively, all P<0.05). Collectively, the findings from this study suggest that MRI T2 mapping can objectively reflect the disease status of DM and PM.
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Affiliation(s)
- F Zhang
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - J Xu
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - X X Wang
- Yunnan Provincial Clinical Medicine Research Center of Rheumatism in Traditional Chinese Medicine,Yunnan Provincial Hospital of Traditional Chinese Medicine,Kunming 650021, China
| | - Y Q Cheng
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - W Chen
- Department of Medical Imaging, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
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Yang B, Guneri D, Yu H, Wright EP, Chen W, Waller ZE, Ding Y. Prediction of DNA i-motifs via machine learning. Nucleic Acids Res 2024; 52:2188-2197. [PMID: 38364855 PMCID: PMC10954440 DOI: 10.1093/nar/gkae092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/18/2024] Open
Abstract
i-Motifs (iMs), are secondary structures formed in cytosine-rich DNA sequences and are involved in multiple functions in the genome. Although putative iM forming sequences are widely distributed in the human genome, the folding status and strength of putative iMs vary dramatically. Much previous research on iM has focused on assessing the iM folding properties using biophysical experiments. However, there are no dedicated computational tools for predicting the folding status and strength of iM structures. Here, we introduce a machine learning pipeline, iM-Seeker, to predict both folding status and structural stability of DNA iMs. The programme iM-Seeker incorporates a Balanced Random Forest classifier trained on genome-wide iMab antibody-based CUT&Tag sequencing data to predict the folding status and an Extreme Gradient Boosting regressor to estimate the folding strength according to both literature biophysical data and our in-house biophysical experiments. iM-Seeker predicts DNA iM folding status with a classification accuracy of 81% and estimates the folding strength with coefficient of determination (R2) of 0.642 on the test set. Model interpretation confirms that the nucleotide composition of the C-rich sequence significantly affects iM stability, with a positive correlation with sequences containing cytosine and thymine and a negative correlation with guanine and adenine.
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Affiliation(s)
- Bibo Yang
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Dilek Guneri
- School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Haopeng Yu
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Elisé P Wright
- Molecular Physiology School of Medicine, and Molecular Medicine Research Group, University of Western Sydney, Campbelltown, NSW 1797, Australia
| | - Wenqian Chen
- School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Zoë A E Waller
- School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Yiliang Ding
- Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
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8
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Lei C, Yang X, Lei X, Xie J, Chen W, Huang B. Photochemical-promoted ZVI reduction for highly efficient removal of 4-chlorophenol and Cr(VI): Catalytic activity, performance and electron transfer mechanisms. Sci Total Environ 2024; 917:170540. [PMID: 38301795 DOI: 10.1016/j.scitotenv.2024.170540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/14/2024] [Accepted: 01/26/2024] [Indexed: 02/03/2024]
Abstract
Zero-valent iron (ZVI) reduction represents a promising methodology for water remediation, but its broad application is limited by two critical challenges (i.e., aggregation and passivation). Here, we report a hybrid strategy of photochemical-promoted ZVI reduction with high efficiency and reduction capacity for removing coexisting refractory pollutants in water. A composite material with Pd/Fe bimetallic nanoparticles supported onto semiconducting metal oxide (Pd/Fe@WO3-GO) was prepared and subsequently used as the model catalyst. By using the developed strategy with visible light as light source, this catalyst showed a remarkable catalytic performance for simultaneously eliminating 4-chlorophenol (4-CP) and Cr(VI), with dehalogenation rate as high as 0.43 min-1, outperforming the reported ZVI-based catalysts. A synergistic interaction of photocatalysis and ZVI reduction occurred in this strategy, where the interfacial electron transfer on particles surface were greatly strengthened with light irradiation. The activation was attributed to the dual functions of semiconducting material as support to disperse Pd/Fe nanoparticles and as (photoexcited) electron donor to directly trigger reduction reactions and/or indirectly inhibit the formation of oxides passivation layer. Both direct electron transfer and H*-mediated indirect electron transfer mechanisms were confirmed to participate in the reduction of pollutants, while the later was quantitatively demonstrated as the predominant reaction route. Importantly, this strategy showed a wide pH applicability, long-term durability and excellent catalytic performance in different real-water systems. This work provides new insights into ZVI reduction and advances its applications for the removal of combined organic and inorganic pollutants. The developed photochemical-promoted ZVI reduction strategy holds a great potential for practical applications.
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Affiliation(s)
- Chao Lei
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Xiwen Yang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Xiaojia Lei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Jituo Xie
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Wenqian Chen
- Department of Pharmacy, National University of Singapore, Science Drive 4, Singapore 117560, Singapore
| | - Binbin Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
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9
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Wang X, Xu X, Li Y, Chen W, Zhao G, Wang H, Tang Y, Wu P, Tang L. Effects of Sodium Vacancies and Concentrations in Na 3SO 4F Solid Electrolyte. ACS Omega 2024; 9:13051-13058. [PMID: 38524466 PMCID: PMC10955714 DOI: 10.1021/acsomega.3c09500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/04/2024] [Accepted: 02/08/2024] [Indexed: 03/26/2024]
Abstract
The sodium-rich solid electrolyte, Na3SO4F (NSOF), holds promise for eco-friendly and resource-abundant energy storage. While the introduction of heterovalent dopants has the potential to enhance its suitability for battery applications by creating Na vacancies, the effect of vacancies and sodium concentrations on sodium conduction remains unclear. In this work, Mg2+ was introduced into Na+ sites in Na3SO4F, generating sodium vacancies with different contents by using solid-state synthesis method. Among the resulting materials, Na2.96Mg0.02SO4F exhibited an ionic conductivity that is two-order-of-magnitude higher than NSOF at 298 K. Notably, as the sodium concentration decreased, the ionic conductivity also declined, revealing an equilibrium between Na vacancies and concentrations. To further investigate the influence of sodium concentration, excess Na+ was introduced into NaMgSO4F, which inherently possesses a lower sodium content by using solid-state synthesis method. However, this adjustment only led to an approximately one-order-of-magnitude enhancement in optimal ionic conductivity at 298 K. Combined with an in situ X-ray diffraction analysis, our findings underscore the greater sensitivity of sodium conduction to variations in sodium vacancies. This study paves the way for the development of ultrafast sodium ion conductors, offering exciting prospects for advanced energy storage solutions.
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Affiliation(s)
- Xue Wang
- Key
Laboratory of Organic Compound Pollution Control Engineering (MOE),
School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Shanghai 200444, China
| | - Xuele Xu
- Key
Laboratory of Organic Compound Pollution Control Engineering (MOE),
School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Shanghai 200444, China
| | - Yuxiang Li
- Department
of Chemistry, College of Sciences, Shanghai
University, No. 99, Shangda
Road, Shanghai 200444, China
| | - Wenqian Chen
- Key
Laboratory of Organic Compound Pollution Control Engineering (MOE),
School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Shanghai 200444, China
| | - Guowei Zhao
- College
of Chemistry and Chemical Engineering, Huanggang
Normal University, Huanggang 438000, Hubei, China
| | - Heng Wang
- Department
of Chemistry, College of Sciences, Shanghai
University, No. 99, Shangda
Road, Shanghai 200444, China
| | - Ya Tang
- Department
of Chemistry, College of Sciences, Shanghai
University, No. 99, Shangda
Road, Shanghai 200444, China
| | - Pengcheng Wu
- Department
of Chemistry, College of Sciences, Shanghai
University, No. 99, Shangda
Road, Shanghai 200444, China
| | - Liang Tang
- Key
Laboratory of Organic Compound Pollution Control Engineering (MOE),
School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Shanghai 200444, China
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10
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Chen W, Geng D, Xu XQ, Hu WT, Dai YM, Wu FY, Zhu LN. Characterization of parotid gland tumors using diffusion-relaxation correlation spectrum imaging: a preliminary study. Clin Radiol 2024:S0009-9260(24)00127-2. [PMID: 38582630 DOI: 10.1016/j.crad.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/19/2024] [Accepted: 02/20/2024] [Indexed: 04/08/2024]
Abstract
AIM To assess the performance of diffusion-relaxation correlation spectrum imaging (DR-CSI) in the characterization of parotid gland tumors. MATERIALS AND METHODS Twenty-five pleomorphic adenomas (PA) patients, 9 Warthin's tumors (WT) patients and 7 malignant tumors (MT) patients were prospectively recruited. DR-CSI (7 b-values combined with 5 TEs, totally 35 diffusion-weighted images) was scanned for pre-treatment assessment. Diffusion (D)-T2 signal spectrum summating all voxels were built for each patient, characterized by D-axis with range 0∼5 × 10-3 mm2/s, and T2-axis with range 0∼300ms. With boundaries of 0.5 and 2.5 × 10-3 mm2/s for D, all spectra were divided into three compartments labeled A (low D), B (mediate D) and C (high D). Volume fractions acquired from each compartment (VA, VB, VC) were compared among PA, WT and MT. Diagnostic performance was assessed using receiver operating characteristic analysis and area under the curve (AUC). RESULTS Each subtype of parotid tumors had their specific D-T2 spectrum. PA showed significantly lower VA (8.85 ± 4.77% vs 20.68 ± 10.85%), higher VB (63.40 ± 8.18% vs 43.05 ± 7.16%), and lower VC (27.75 ± 8.51% vs 36.27 ± 11.09) than WT (all p<0.05). VB showed optimal diagnostic performance (AUC 0.969, sensitivity 92.00%, specificity 100.00%). MT showed significantly higher VA (21.23 ± 12.36%), lower VB (37.09 ± 6.43%), and higher VC (41.68 ± 13.72%) than PA (all p<0.05). Similarly, VB showed optimal diagnostic performance (AUC 0.994, sensitivity 96.00%, specificity 100.00%). No significant difference of VA, VB and VC was found between WT and MT. CONCLUSIONS DR-CSI might be a promising and non-invasive way for characterizing parotid gland tumors.
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Affiliation(s)
- W Chen
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - D Geng
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X-Q Xu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - W-T Hu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Y-M Dai
- School of Biomedical Engineering, ShanghaiTech University, Shanghai, China
| | - F-Y Wu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - L-N Zhu
- Department of Stomatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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11
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Chen W, Yang Z, Liu CH, Jia XY, Zhang YT, Song X, Li S. [The cutoff value of small airway dysfunction in children with bronchial asthma]. Zhonghua Er Ke Za Zhi 2024; 62:245-249. [PMID: 38378286 DOI: 10.3760/cma.j.cn112140-20231012-00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Objective: To explore the cutoff value for assessing small airway dysfunction in children with asthma. Methods: A total of 364 asthmatic children aged 5 to 14 years, with normal ventilatory function, followed up at the Asthma Clinic of the Children's Hospital of Capital Institute of Pediatrics from January 2017 to January 2018, were selected as the case group. Concurrently, 403 healthy children of the same age range and without any symptoms in the community were chosen as the control group, and pulmonary function tests were conducted. The values of forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), forced expiratory flow at 50% of FVC (FEF50), forced expiratory flow at 75% of FVC (FEF75) and maximum mid-expiratory flow (MMEF) were compared between case group and control group. Statistical tests such as t-test, χ2 test, or Mann-Whitney U test were used to analyze the differences between the groups. Receiver operating characteristic (ROC) curves were constructed, and the maximum Youden Index was utilized to determine the optimal cutoff values and thresholds for identifying small airway dysfunction in asthmatic children. Results: This study comprised 364 children in the case group (220 boys and 144 girls) and 403 children in the control group (198 boys and 205 girls). The small airway parameters (FEF50%pred, FEF75%pred, MMEF%pred) in the asthmatic group were significantly lower than in the control group (77% (69%, 91%) vs. 95% (83%, 109%), 67% (54%, 82%) vs. 84% (70%, 102%), 76% (66%, 90%) vs. 97% (86%, 113%), Z=12.03, 11.35, 13.66, all P<0.001). The ROC curve area under the curve for FEF50%pred, FEF75%pred, MMEF%pred was 0.75, 0.74, and 0.79, respectively. Using a cutoff value of 80% for FEF50%pred achieved a sensitivity of 56.9% and specificity of 81.4%. A cutoff value of 74% for FEF75%pred resulted in a sensitivity of 67.3% and specificity of 69.2%. Finally, using a cutoff value of 84% for MMEF%pred achieved a sensitivity of 67.9% and specificity of 77.2%. Conclusion: In the presence of normal ventilatory function, utilizing FEF50<80% predicted or MMEF<84% predicted can accurately serve as criteria for identifying small airway dysfunction in children with controlled asthma.
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Affiliation(s)
- W Chen
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - Z Yang
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - C H Liu
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - X Y Jia
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - Y T Zhang
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - X Song
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
| | - S Li
- Department of Allergy, Children's Hospital of Capital Institute of Pediatrics, Beijing 100020, ChinaChen Wei is studying at Graduate School, School of Clinical Medicine of Shandong Second Medical University, Weifang 261000, China
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12
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Dong G, Chen W. Blockwise compression of transformer-based models without retraining. Neural Netw 2024; 171:423-428. [PMID: 38141477 DOI: 10.1016/j.neunet.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 08/10/2023] [Accepted: 12/01/2023] [Indexed: 12/25/2023]
Abstract
Transformer-based models, exemplified by GPT-3, ChatGPT, and GPT-4, have recently garnered considerable attention in both academia and industry due to their promising performance in general language tasks. Nevertheless, these models typically involve computationally encoding processes, and in some cases, decoding processes as well, both of which are fundamentally large-scale matrix multiplication. These operations bring the inevitable challenges of massive computation resources and huge memory footprint, usually requiring at least 1023 FLOPs and hundreds of gigabytes, respectively. A common method to address this issue is to reduce the computational and memory requirements by applying layerwise quantization to the transformer, replacing the usual fp32 data type with a low-bit equivalent. Unfortunately, this method often leads to decreased model accuracy and necessitates time-consuming retraining. Such retraining not only requires fine-tuning skills but also substantial computational resources, posing challenges for users. To specifically tackle these issues, we propose BCT, a framework of blockwise compression for transformers without retraining, aiming to facilitate model deployment. Unlike layerwise compression methods, BCT achieves finer compression of the entire transformer by operating blockwise. This method mitigates data distribution deviation caused by quantization, eliminating the requirement for retraining. BCT effectively compresses all components of the model, including but not limited to the embedding, matrix multiplication, GELU, Softmax, layer normalization, and intermediate results. In a case study, an efficient model is compressed by BCT achieving up to 7.988x compression. Subsequently, we also evaluate it on several General Language Understanding Evaluation (GLUE) datasets. Experimental results on the majority of GLUE benchmark demonstrate the effectiveness of our method, as BCT achieves less than a 0.9% degradation in accuracy compared to the more than a 1% degradation seen with other methods providing similar or inferior compression ratios.
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Affiliation(s)
| | - W Chen
- RISC-V International Open Source Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, China
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13
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Bhattacharyya P, Chen W, Huang X, Chatterjee S, Huang B, Kobrin B, Lyu Y, Smart TJ, Block M, Wang E, Wang Z, Wu W, Hsieh S, Ma H, Mandyam S, Chen B, Davis E, Geballe ZM, Zu C, Struzhkin V, Jeanloz R, Moore JE, Cui T, Galli G, Halperin BI, Laumann CR, Yao NY. Imaging the Meissner effect in hydride superconductors using quantum sensors. Nature 2024; 627:73-79. [PMID: 38418887 DOI: 10.1038/s41586-024-07026-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 01/03/2024] [Indexed: 03/02/2024]
Abstract
By directly altering microscopic interactions, pressure provides a powerful tuning knob for the exploration of condensed phases and geophysical phenomena1. The megabar regime represents an interesting frontier, in which recent discoveries include high-temperature superconductors, as well as structural and valence phase transitions2-6. However, at such high pressures, many conventional measurement techniques fail. Here we demonstrate the ability to perform local magnetometry inside a diamond anvil cell with sub-micron spatial resolution at megabar pressures. Our approach uses a shallow layer of nitrogen-vacancy colour centres implanted directly within the anvil7-9; crucially, we choose a crystal cut compatible with the intrinsic symmetries of the nitrogen-vacancy centre to enable functionality at megabar pressures. We apply our technique to characterize a recently discovered hydride superconductor, CeH9 (ref. 10). By performing simultaneous magnetometry and electrical transport measurements, we observe the dual signatures of superconductivity: diamagnetism characteristic of the Meissner effect and a sharp drop of the resistance to near zero. By locally mapping both the diamagnetic response and flux trapping, we directly image the geometry of superconducting regions, showing marked inhomogeneities at the micron scale. Our work brings quantum sensing to the megabar frontier and enables the closed-loop optimization of superhydride materials synthesis.
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Affiliation(s)
- P Bhattacharyya
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - W Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
| | - X Huang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
| | - S Chatterjee
- Department of Physics, University of California, Berkeley, CA, USA
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA, USA
| | - B Huang
- Department of Chemistry, University of Chicago, Chicago, IL, USA
| | - B Kobrin
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Y Lyu
- Department of Physics, University of California, Berkeley, CA, USA
| | - T J Smart
- Department of Physics, University of California, Berkeley, CA, USA
- Department of Earth and Planetary Science, University of California, Berkeley, CA, USA
| | - M Block
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - E Wang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Z Wang
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - W Wu
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - S Hsieh
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - H Ma
- Department of Chemistry, University of Chicago, Chicago, IL, USA
| | - S Mandyam
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - B Chen
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - E Davis
- Department of Physics, University of California, Berkeley, CA, USA
| | - Z M Geballe
- Earth and Planets Laboratory, Carnegie Institution of Washington, Washington, DC, USA
| | - C Zu
- Department of Physics, Washington University in St. Louis, St. Louis, MO, USA
| | - V Struzhkin
- Center for High Pressure Science and Technology Advanced Research, Shanghai, China
| | - R Jeanloz
- Department of Earth and Planetary Science, University of California, Berkeley, CA, USA
| | - J E Moore
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - T Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
- School of Physical Science and Technology, Ningbo University, Ningbo, China
| | - G Galli
- Department of Chemistry, University of Chicago, Chicago, IL, USA
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, IL, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - B I Halperin
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - C R Laumann
- Department of Physics, Boston University, Boston, MA, USA
| | - N Y Yao
- Department of Physics, University of California, Berkeley, CA, USA.
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
- Department of Physics, Harvard University, Cambridge, MA, USA.
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14
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Xia Z, Lin N, Chen W, Qi M, Sha Y. Multiparametric MRI-based radiomics nomogram for predicting malignant transformation of sinonasal inverted papilloma. Clin Radiol 2024; 79:e408-e416. [PMID: 38142140 DOI: 10.1016/j.crad.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/18/2023] [Accepted: 11/05/2023] [Indexed: 12/25/2023]
Abstract
AIM To investigate the feasibility of a radiomics nomogram model for predicting malignant transformation in sinonasal inverted papilloma (IP) based on radiomic signature and clinical risk factors. MATERIALS AND METHODS This single institutional retrospective review included a total of 143 patients with IP and 75 patients with IP with malignant transformation to squamous cell carcinoma (IP-SCC). All patients underwent surgical pathology and had preoperative magnetic resonance imaging (MRI) and computed tomography (CT) sinus studies between June 2014 and February 2022. Radiomics features were extracted from contrast-enhanced T1-weighted images (CE-T1WI), T2-weighted images (T2WI), and apparent diffusion coefficient (ADC) maps. The least absolute shrinkage and selection operator (LASSO) were performed to select the features extracted from the sequences mentioned above. Independent clinical risk factors were identified by multivariate logistic regression analysis. Radiomics nomogram was constructed by incorporating independent clinical risk factors and radiomics signature. Based on discrimination and calibration, the diagnostic performance of the nomogram was evaluated. RESULTS Twelve radiomics features were selected to develop the radiomics model with an area under the curve (AUC) of 0.987 and 0.989, respectively. Epistaxis (p=0.011), T2 equal signal (p=0.003), extranasal invasion (p<0.001), and loss of convoluted cerebriform pattern (p=0.002) were identified as independent clinical predictors. The radiomics nomogram model showed excellent calibration and discrimination (AUC: 0.993, 95% confidence interval [CI]: 0.985-1.00 and 0.990, 95% CI: 0.974-1.00) in the training and validation sets, respectively. CONCLUSION The nomogram that the combined radiomics signature and clinical risk factors showed a satisfactory ability to predict IP-SCC.
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Affiliation(s)
- Z Xia
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, No.83 Fenyang Road, Shanghai 200030, China
| | - N Lin
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, No.83 Fenyang Road, Shanghai 200030, China
| | - W Chen
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, No.83 Fenyang Road, Shanghai 200030, China; Shanghai Institute of Medical Imaging, Fudan University, Shanghai, China
| | - M Qi
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, No.83 Fenyang Road, Shanghai 200030, China.
| | - Y Sha
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, No.83 Fenyang Road, Shanghai 200030, China.
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15
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Chen KD, Chen W, Hu B, Zhao ZS. Preoperative BMI and Hb levels are important predictors of massive bleeding in liver transplant patients. Eur Rev Med Pharmacol Sci 2024; 28:1791-1796. [PMID: 38497862 DOI: 10.26355/eurrev_202403_35593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
OBJECTIVE This study aims to compare intraoperative bleeding during liver transplant procedures and analyze the predictive role of preoperative laboratory indicators in significant intraoperative bleeding. PATIENTS AND METHODS A retrospective analysis was conducted on 271 cases of allogeneic liver transplant patients from January 2018 to June 2023. Patients were categorized into the massive bleeding (MB) group and the non-massive bleeding (non-MB) group based on the occurrence of significant intraoperative bleeding. Preoperative laboratory parameters between the MB and non-MB groups were compared, and univariate and multivariate regression analyses were performed. ROC curves were performed to analyze the value of these parameters in distinguishing the MB and non-MB groups. RESULTS In the MB group, body mass index (BMI), hemoglobin (Hb), platelet count (PLT), fibrinogen (Fib), and total protein (TP) levels were significantly lower than those in the non-MB group (p < 0.05). Conversely, prothrombin time (PT), international normalized ratio (INR), total bilirubin (TBIL), creatinine (CRE), blood urea nitrogen (BUN), the model for end-stage liver disease (MELD) score, length of stay, and hospital stay were significantly higher in the MB group compared to the non-MB group (p < 0.05). Univariate and multivariate logistic regression analyses revealed that preoperative BMI and Hb were independent risk factors for massive bleeding during liver transplantation. ROC curve analysis for predicting massive intraoperative bleeding showed that the area under the curve (AUC) of Hb was considerable (AUC: 0.83). CONCLUSIONS Preoperative BMI and Hb levels are critical predictors of massive bleeding during liver transplantation, emphasizing the importance of proactive management based on these indicators for improved patient outcomes.
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Affiliation(s)
- K-D Chen
- Department of Blood Transfusion, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, China.
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Luo S, Feng X, Lin L, Li J, Chen W, Guo VY. Association of adverse and positive childhood experiences with health-related quality of life in adolescents. Public Health 2024; 228:92-99. [PMID: 38340507 DOI: 10.1016/j.puhe.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/28/2023] [Accepted: 01/07/2024] [Indexed: 02/12/2024]
Abstract
OBJECTIVES To investigate the independent impacts of adverse childhood experiences (ACEs) and positive childhood experiences (PCEs) on the health-related quality of life (HRQOL) of Chinese adolescents, and to explore the potential moderating role of PCEs in the association between ACEs and HRQOL. STUDY DESIGN This was a cross-sectional study. METHODS We surveyed 6982 students aged 11-20 in Guangzhou, China, from November to December 2021. Adolescents self-reported their ACEs, PCEs, and HRQOL by the Childhood Trauma Questionnaire Short Form, the Adverse Childhood Experiences-International Questionnaire, the Benevolent Childhood Experiences Scale, and the Paediatric Quality of Life Inventory Version 4.0, respectively. Multivariable linear regressions were performed to examine the associations between ACEs, PCEs, and HRQOL controlled for adolescents' age, gender, single-child status, boarding school attendance, primary caregivers, as well as parental age and occupational status. Likelihood-ratio tests were further applied to explore the moderating role of PCEs. RESULTS In the models that considered both ACEs and PCEs, ACEs were significantly associated with lower HRQOL scores in all dimensions, summary scales, and total scale (β = -13.88, 95% confidence interval [CI]: -14.82, -12.94 for total scale). Conversely, exposure to an above-average number of PCEs was associated with higher HRQOL scores in all measured aspects (β = 7.20, 95%CI: 6.57, 7.84 for total scale). PCEs significantly moderated the association between ACEs and all HRQOL dimensions, summary scales, and total scale, except school functioning. CONCLUSION ACEs and PCEs exert independent and opposite impacts on adolescents' HRQOL. PCEs could mitigate the negative impacts of ACEs. Enhancing resilience, like PCEs, may contribute to improving the HRQOL among adolescents who have exposed to ACEs.
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Affiliation(s)
- S Luo
- Department of Epidemiology, School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong, China
| | - X Feng
- Guangzhou Huangpu District Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - L Lin
- Department of Epidemiology, School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong, China
| | - J Li
- Department of Biostatistics, School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong, China
| | - W Chen
- Department of Epidemiology, School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong, China
| | - V Y Guo
- Department of Epidemiology, School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong, China.
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Chen W, Bai Y, Fang P, Chen J, Wang X, Li Y, Luo X, Xiao Z, Iyer R, Shan F, Yuan T, Wu M, Huang X, Fang D, Yang Q, Zhang Y. Body mass index's effect on CRSwNP extends to pathological endotype and recurrence. Rhinology 2024; 0:3161. [PMID: 38416065 DOI: 10.4193/rhin23.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
BACKGROUND Elevated body mass index (BMI) has been recognized as an important contributor to corticosteroid insensitivity in chronic rhinosinusitis with nasal polyps (CRSwNP). We aimed to delineate the effects of elevated BMI on immunological endotype and recurrence in CRSwNP individuals. METHODOLOGY A total of 325 patients with CRSwNP undergoing FESS were recruited and stratified by BMI. H&E staining was employed for histological evaluation. Characteristics of inflammatory patterns were identified by immunohistochemical staining. The predictive factors for recurrence were determined and evaluated by multivariable logistic regression analysis and the receiver operating characteristic (ROC) curves across all subjects and by weight group. RESULTS In all patients with CRSwNP, 26.15% subjects were classified as overweight/obese group across BMI categories and exhibited a higher symptom burden. The upregulated eosinophil/neutrophil-dominant cellular endotype and amplified type 2/ type 3 coexisting inflammation was present in overweight/obese compared to underweight/normal weight controls. Additionally, a higher recurrent proportion was shown in overweight/obese patients than that in underweight/normal weight cohorts. Multivariable logistic regression analysis identified BMI as an independent predictor for recurrence. The predictive capacity of each conventional parameter (tissue eosinophil and CLCs count, and blood eosinophil percentage) alone or in combination was poor in overweight/obese subjects. CONCLUSIONS Overweight/obese CRSwNP stands for a unique phenotype and endotype. Conventional parameters predicting recurrence are compromised in overweight/obese CRSwNP, and there is an urgent need for novel biomarkers that predict recurrence for these patients.
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Affiliation(s)
- W Chen
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Y Bai
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - P Fang
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - J Chen
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - X Wang
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Y Li
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - X Luo
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Z Xiao
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - R Iyer
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - F Shan
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - T Yuan
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - M Wu
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - X Huang
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Department of Allergy, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - D Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Q Yang
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Department of Allergy, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Y Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Department of Allergy, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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18
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Xie ZH, Li LF, Zhu HS, Huang WL, Lin JW, Chen W, Ou JM. [Epidemiological characteristics of typhoid fever in Fujian Province, 2011-2022]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:207-212. [PMID: 38413058 DOI: 10.3760/cma.j.cn112338-20230830-00107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Objective: To analyze the incidence trend and epidemiological characteristics of typhoid fever in Fujian Province from 2011 to 2022, and understand the high-incidence population and hotspot areas, and provide evidences to develop more targeted prevention and control measures. Methods: The surveillance data of typhoid fever during 2011-2022 in Fujian Province were obtained from the National Disease Reporting Information System and analyzed with SAS 9.4. The spatial autocorrelation analysis of typhoid fever incidence at county/district levels was performed with ArcGlS 10.8. Results: A total of 5 126 cases of typhoid fever were reported in Fujian Province from 2011 to 2022, with an average annual incidence rate of 1.10/100 000. The average annual incidence rate was 0.96/100 000 from 2011 to 2015, 1.49/100 000 from 2016 to 2019, and 0.81/100 000 from 2020 to 2022. The disease occurred all the year round, with high epidemic season from May to September. A total of 23.59% (1 209/5 126) of the cases occurred at the age of 0-4, and 9.62% (493/5 126) at the age of 5-9. The male to female ratio of the cases was 0.97∶1 (2 524∶2 602) for the whole population, 1.19∶1 (925∶777) for people under 10 years old, 0.75∶1 (1 060∶1 404) for people between 10 and 54 years old, and 1.28∶1 (539∶421) for people over 55 years old. Cases in Ningde City accounted for 30.65% (1 571/5 126) of the total cases. Most hotspots were occurred in Ningde City. Recurrent and clustered cases were found in family members. Conclusions: Typhoid fever was prevalent at a low level in Fujian Province during 2011-2022, indicating that strengthening the prevention and control measures should target key areas and populations. The incidence of typhoid fever in Fujian Province showed spatial aggregation phenomenon, and most cases gathered in Ningde City. Intensive study for the influencing factors of spatial clustering should be conducted.
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Affiliation(s)
- Z H Xie
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - L F Li
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - H S Zhu
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - W L Huang
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - J W Lin
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - W Chen
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
| | - J M Ou
- Emergency Management and Epidemic Management Office, Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350001, China
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Gu H, Hu Y, Guo S, Jin Y, Chen W, Huang C, Hu Z, Li F, Liu J. China's prevention and control experience of echinococcosis: A 19-year retrospective. J Helminthol 2024; 98:e16. [PMID: 38305033 DOI: 10.1017/s0022149x24000014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Echinococcosis poses a significant threat to public health. The Chinese government has implemented prevention and control measures to mitigate the impact of the disease. By analyzing data from the Chinese Center for Disease Control and Prevention and the State Council of the People's Republic of China, we found that implementation of these measures has reduced the infection rate by nearly 50% between 2004 to 2022 (from 0.3975 to 0.1944 per 100,000 person-years). Nonetheless, some regions still bear a significant disease burden, and lack of detailed information limites further evaluation of the effects on both alveolar and cystic echinococcosis. Our analysis supports the continuing implementation of these measures and suggests that enhanced wildlife management, case-based strategies, and surveillance systems will facilitate disease control.
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Affiliation(s)
- H Gu
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - Y Hu
- Department of Biliary Surgery, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - S Guo
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - Y Jin
- Department of Biliary Surgery, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - W Chen
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - C Huang
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - Z Hu
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - F Li
- Department of Biliary Surgery, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
| | - J Liu
- Laboratory of Infectious Diseases and Vaccines, West China School of Medicine, West China Hospital of Sichuan University, Chengdu610041, PR China
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Wu X, Tu WH, Veksha A, Chen W, Lisak G. Polyolefin-derived substrate-grown carbon nanotubes as binder-free electrode for hydrogen evolution in alkaline media. Chemosphere 2024; 349:140769. [PMID: 38000550 DOI: 10.1016/j.chemosphere.2023.140769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023]
Abstract
Switching from a linear mode of waste management to a circular loop by transforming plastic waste into carbon nanotubes (CNTs) is a promising approach to current plastic waste treatment. One of the many applications of CNTs is its use for electrocatalytic water splitting for hydrogen evolution. Existing methods of CNTs-based hydrogen evolution reaction (HER) electrode fabrication involve additives like polymeric binders and additional steps to improve CNT dispersion, which are detrimental to the CNT structure and properties. The in-situ fabrication approach can potentially be a one-pot solution to HER electrode synthesis. In this study, polyolefins pyrolysis gas and a Co:Ni:Mg catalyst were used to fabricate binder-free CNTs-based electrodes on different substrates for HER. The study assessed CNT quality on conductive carbon paper, semiconductive silicon, and dielectric glass substrates, evaluating their HER performance in 1 M KOH. A mixture of hollow-core, bamboo-like, and cup-stacked arrangement nanotubes were synthesized on the substrates, with CNTs on glass and carbon paper substrates possessing better graphitization than CNTs grown on silicon. This is in agreement with HER performance, whereby the as-prepared electrodes required overpotentials of 267 mV, 241 mV, and 216 mV for silicon, glass, and carbon paper, respectively, to achieve 10 mA/cm2. Despite being poorly conductive, the glass substrate electrode achieved a lower overpotential than the silicon electrode. Additionally, the as-prepared silicon electrode faced a delamination issue likely attributed to the lower surface energy of the silicon substrate surface, demonstrating the weaker adhesion between the CNTs and silicon surface. The proposed approach thus showed that the in-situ fabricated electrodes performed better than separately synthesized CNTs prepared into electrodes by 27.4% and 14.2% for carbon paper and glass substrates, respectively. The improved performance of the as-prepared, binder-free electrodes can be linked to the lower charge-transfer resistance and reduced contact resistance between the CNTs and substrate.
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Affiliation(s)
- XinYi Wu
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Wei Han Tu
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore; Interdisciplinary Graduate Program, Nanyang Technological University, 1 Cleantech Loop, Cleantech One, Singapore, 637141, Singapore
| | - Andrei Veksha
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore
| | - Wenqian Chen
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore
| | - Grzegorz Lisak
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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21
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Chen W, Li J, Wang Z, Wang H, Li Y, Tang L. Synthesis of TiO xN y oxynitrides with a tunable nitrogen content. Dalton Trans 2024; 53:1265-1273. [PMID: 38112212 DOI: 10.1039/d3dt02892e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
TiOxNy is a solid solution of cubic TiN and cubic TiO, with the ability to adjust its physical and chemical properties by modifying the O/N ratio, thus making it suitable for various applications. However, the synthesis of TiOxNy remains a significant challenge for inorganic chemists. In this work, we have successfully synthesized TiOxNy nanoparticles using the layered oxide Cs0.68Ti1.83O4 as the precursor and urea as the nitrogen source. The synthesis process was conducted within a temperature range of 800 to 1200 °C, leading to the transformation of the nitrided products from a two-dimensional layered precursor structure to a three-dimensional structure as the temperature increased. By varying the reaction temperature, the O/N ratio can be controlled. The experimental findings demonstrate that the nitrogen content in TiOxNy nanoparticles increases with rising temperature, ranging from TiO0.8N0.2 at 800 °C to TiO0.25N0.75 at 1200 °C. This work highlights the potential of the solid-state method in tailoring the properties of TiOxNy nanoparticles and presents a novel approach for synthesizing oxynitrides.
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Affiliation(s)
- Wenqian Chen
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Jinkun Li
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Zihan Wang
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Heng Wang
- School of Science, Shanghai University, Shanghai 200444, PR China
| | - Yong Li
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200000, PR China
| | - Liang Tang
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai 200444, PR China.
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
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22
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Ayres NJ, Ban G, Bison G, Bodek K, Bondar V, Bouillaud T, Bowles D, Chanel E, Chen W, Chiu PJ, Crawford C, Naviliat-Cuncic O, Doorenbos CB, Emmenegger S, Fertl M, Fratangelo A, Griffith WC, Grujic ZD, Harris PG, Kirch K, Kletzl V, Krempel J, Lauss B, Lefort T, Lejuez A, Li R, Mullan P, Pacura S, Pais D, Piegsa FM, Rienäcker I, Ries D, Pignol G, Rebreyend D, Roccia S, Rozpedzik D, Saenz-Arevalo W, Schmidt-Wellenburg P, Schnabel A, Segarra EP, Severijns N, Svirina K, Tavakoli Dinani R, Thorne J, Vankeirsbilck J, Voigt J, Yazdandoost N, Zejma J, Ziehl N, Zsigmond G, nEDM collaboration at PSI T. Achieving ultra-low and -uniform residual magnetic fields in a very large magnetically shielded room for fundamental physics experiments. Eur Phys J C Part Fields 2024; 84:18. [PMID: 38205101 PMCID: PMC10774228 DOI: 10.1140/epjc/s10052-023-12351-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024]
Abstract
High-precision searches for an electric dipole moment of the neutron (nEDM) require stable and uniform magnetic field environments. We present the recent achievements of degaussing and equilibrating the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute. We present the final degaussing configuration that will be used for n2EDM after numerous studies. The optimized procedure results in a residual magnetic field that has been reduced by a factor of two. The ultra-low field is achieved with the full magnetic-field-coil system, and a large vacuum vessel installed, both in the MSR. In the inner volume of ∼ 1.4 m 3 , the field is now more uniform and below 300 pT. In addition, the procedure is faster and dissipates less heat into the magnetic environment, which in turn, reduces its thermal relaxation time from 12 h down to 1.5 h .
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Affiliation(s)
- N. J. Ayres
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - G. Ban
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - G. Bison
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - K. Bodek
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland
| | - V. Bondar
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - T. Bouillaud
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
| | - D. Bowles
- Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 USA
| | - E. Chanel
- Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland
| | - W. Chen
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - P.-J. Chiu
- University of Zürich, 8057 Zurich, Switzerland
| | - C. B. Crawford
- Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 USA
| | - O. Naviliat-Cuncic
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - C. B. Doorenbos
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - S. Emmenegger
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - M. Fertl
- Institute of Physics, Johannes Gutenberg University, 55128 Mainz, Germany
| | - A. Fratangelo
- Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland
| | - W. C. Griffith
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
| | - Z. D. Grujic
- Institute of Physics, Photonics Center, University of Belgrade, Belgrade, 11080 Serbia
| | - P. G. Harris
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
| | - K. Kirch
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - V. Kletzl
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - J. Krempel
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - B. Lauss
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - T. Lefort
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - A. Lejuez
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - R. Li
- Instituut voor Kern-en Stralingsfysica, University of Leuven, 3001 Leuven, Belgium
| | - P. Mullan
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - S. Pacura
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland
| | - D. Pais
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - F. M. Piegsa
- Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland
| | - I. Rienäcker
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - D. Ries
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - G. Pignol
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
| | - D. Rebreyend
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
| | - S. Roccia
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
| | - D. Rozpedzik
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland
| | - W. Saenz-Arevalo
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | | | - A. Schnabel
- Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, 10587 Berlin, Germany
| | - E. P. Segarra
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - N. Severijns
- Instituut voor Kern-en Stralingsfysica, University of Leuven, 3001 Leuven, Belgium
| | - K. Svirina
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
| | - R. Tavakoli Dinani
- Instituut voor Kern-en Stralingsfysica, University of Leuven, 3001 Leuven, Belgium
| | - J. Thorne
- Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland
| | - J. Vankeirsbilck
- Instituut voor Kern-en Stralingsfysica, University of Leuven, 3001 Leuven, Belgium
| | - J. Voigt
- Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, 10587 Berlin, Germany
| | - N. Yazdandoost
- Department of Chemistry-TRIGA Site, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - J. Zejma
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland
| | - N. Ziehl
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
| | - G. Zsigmond
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - The nEDM collaboration at PSI
- Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland
- Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland
- Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38026 Grenoble, France
- Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 USA
- Laboratory for High Energy Physics and Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern, Switzerland
- University of Zürich, 8057 Zurich, Switzerland
- Institute of Physics, Johannes Gutenberg University, 55128 Mainz, Germany
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
- Institute of Physics, Photonics Center, University of Belgrade, Belgrade, 11080 Serbia
- Instituut voor Kern-en Stralingsfysica, University of Leuven, 3001 Leuven, Belgium
- Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, 10587 Berlin, Germany
- Department of Chemistry-TRIGA Site, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
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Jia B, Tang L, Liu H, Chen W, Chen Q, Zhong M, Yin A. Potential roles of the interactions between gut microbiota and metabolites in LPS-induced intrauterine inflammation (IUI) and associated preterm birth (PTB). J Transl Med 2024; 22:7. [PMID: 38167140 PMCID: PMC10762855 DOI: 10.1186/s12967-023-04603-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/06/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Prenatal exposure to intrauterine inflammation (IUI) is a crucial event in preterm birth (PTB) pathophysiology, increasing the incidence of neurodevelopmental disorders. Gut microbiota and metabolite profile alterations have been reported to be involved in PTB pathophysiology. METHOD AND RESULTS In this study, IUI-exposed PTB mouse model was established and verified by PTB rate and other perinatal adverse reactions; LPS-indued IUI significantly increased the rates of PTB, apoptosis and inflammation in placenta tissue samples. LPS-induced IUI caused no significant differences in species richness and evenness but significantly altered the species abundance distribution. Non-targeted metabolomics analysis indicated that the metabolite profile of the preterm mice was altered, and differential metabolites were associated with signaling pathways including pyruvate metabolism. Furthermore, a significant positive correlation between Parasutterella excrementihominis and S4572761 (Nb-p-coumaroyltryptamine) and Mreference-1264 (pyruvic acid), respectively, was observed. Lastly, pyruvic acid treatment partially improved LPS-induced IUI phenotypes and decreased PTB rates and decreased the apoptosis and inflammation in placenta tissue samples. CONCLUSION This study revealed an association among gut microbiota dysbiosis, metabolite profile alterations, and LPS-induced IUI and PTB in mice models. Our investigation revealed the possible involvement of gut microbiota in the pathophysiology of LPS-induced IUI and PTB, which might be mediated by metabolites such as pyruvic acid. Future studies should be conducted to verify the findings through larger sample-sized animal studies and clinical investigations.
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Affiliation(s)
- Bei Jia
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Lijun Tang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Huibing Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Wenqian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Qian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China
| | - Ailan Yin
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Northern Avenue, Guangzhou, 510515, People's Republic of China.
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24
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Li RR, Chen W, Cao W, Wang Q, Xu N, Luo JM, Ma MS. [An investigation on the nutritional status and support of in-patients with common variable immunodeficiency]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:2164-2170. [PMID: 38186172 DOI: 10.3760/cma.j.cn112150-20221216-01207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
The study aimed to reveal for the first time the clinical characteristics, nutritional and metabolic status and support of hospitalized patients with common variant immunodeficiency disease (CVID), and provide reference to improve the long-term nutritional management for such patients. This is a retrospective cross-sectional study. Through searching the electronic medical record system of Peking Union Medical College Hospital, the study included 33 consecutive in-patients with CVID diagnosed in Jan 2016 to Jun 2021, with the male to female ratio of 16∶17. All their medical data, nutritional assessment and intervention retrospectively summarized and analyzed. Data with normal distribution were described using (x¯±s), and analyzed with independent sample t-test. Data with non-normal distribution were compared with non-parametric test. The results showed that the median onset-age of the included patients was 22 (10.0,36.5) years old, and the median duration was 9.0 (2.0,16.0) years. All patients had recurrent infections involving various systems (33/33), with development of autoimmune diseases (8/33) and lymphoproliferative disease or malignancy (9/33) in some cases among them. The nutritional risk screening 2002 (NRS 2002) scores revealed that 85.19% of adults had an NRS 2002≥3 points, and 33.33% of children had a BMI-for-age z score<-2. Weight loss occurred in 66.67% of patients (22/33), while 87.88% (29/33), 69.70% (23/33) and 81.82% (27/33) of patients respectively had anemia, hypoalbuminemia and decreased prealbumin. Among 22 patients with micronutrients status evaluated, 77.27% (17/22), 22.73% (5/22) and 31.82% (7/22) of patients respectively had lowered serum iron, folate deficiency and vitamin B12 insufficiency. Six patients underwent 25-OH-VD3 measurement, and were all testified to have vitamin D deficiency. Among all patients with nutritional risk, 56.00% of them underwent nutritional support: oral nutritional supplements (14 cases), enteral feeding (4 cases) and parenteral nutrition (5 cases). In conclusion, the condition of malnutrition was prevalent in patients with CVID, but was under-recognized and undertreated to some degree.
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Affiliation(s)
- R R Li
- Beijing Key Laboratory of the Innovative Development of Functional Staple and the Nutritional Intervention for Chronic Disease, Department of Clinical Nutrition, Peking Union Medical College Hospital, Beijing 100730, China
| | - W Chen
- Beijing Key Laboratory of the Innovative Development of Functional Staple and the Nutritional Intervention for Chronic Disease, Department of Clinical Nutrition, Peking Union Medical College Hospital, Beijing 100730, China
| | - W Cao
- Department of Infectious Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - Q Wang
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing 100730, China
| | - N Xu
- Department of General Internal Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - J M Luo
- Department of Respiratory Diseases, Peking Union Medical College Hospital, Beijing 100730, China
| | - M S Ma
- Department of Pediatrics, Peking Union Medical College Hospital, Beijing 100730, China
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Wang S, Zheng C, Guo D, Chen W, Xie Q, Zhai Q. Dose-related effects of early-life intake of sn-2 palmitate, a specific positionally distributed human milk fatty acid, on the composition and metabolism of the intestinal microbiota. J Dairy Sci 2023; 106:8272-8286. [PMID: 37678794 DOI: 10.3168/jds.2023-23361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/12/2023] [Indexed: 09/09/2023]
Abstract
sn2 Palmitate in human milk plays an important role in the physiological health of infants by reducing mineral loss, improving stool hardness, and relieving constipation. Also, sn-2 palmitate modulates intestinal microbiota. However, it remains unclear whether the effects of sn-2 palmitate on infant gut microbiota are dose-dependent. In this study, we investigated the effects of low, medium, and high doses (600, 1,800, and 5,400 mg/kg body weight, respectively) of sn-2 palmitate on the structure, composition, and metabolic function of intestinal microbes in mice. Our results showed that high doses of sn-2 palmitate significantly modulated α- and β-diversity of the intestinal microbiota. The relative abundance of Lachnospiraceae_NK4A136_group decreased with increasing doses of sn-2 palmitate. In contrast, the abundances of Bacteroidetes phylum, Bacteroides, uncultured_Lachnospiraceae, and uncultured_Muribaculaceae were positively correlated with sn-2 palmitate doses. The number of genes predicted encoding autophagy-yeast, phospholipase D signaling pathway, and pentose and glucuronate interconversion metabolic functions of intestinal microbiota increased with increasing doses of sn-2 palmitate. In addition, low and medium doses of sn-2 palmitate significantly upregulated the arginine and proline metabolic pathways, and high doses of sn-2 palmitate significantly increased purine metabolism. Our results revealed that the effects of sn-2 palmitate intake early in life on the composition and metabolism of the intestinal microbiota of mice showed dose-related differences. The study is expected to provide a scientific basis for the development of infant formulas.
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Affiliation(s)
- S Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - C Zheng
- Heilongjiang Feihe Dairy Co. Ltd., Chaoyang, Beijing 100015, China; PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, Haidian, Beijing 100083, China
| | - D Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - W Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Q Xie
- Heilongjiang Feihe Dairy Co. Ltd., Chaoyang, Beijing 100015, China; PKUHSC-China Feihe Joint Research Institute of Nutrition and Healthy Lifespan Development, Haidian, Beijing 100083, China.
| | - Q Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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26
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Xia WG, Abouelezz K, Huang XB, Li KC, Chen W, Wang S, Zhang YN, Jin CL, Azzam MMM, Zheng CT. Dietary non-phytate phosphorus requirements for optimal productive and reproductive performance, and egg and tibial quality in egg-type duck breeders. Animal 2023; 17:101022. [PMID: 37976778 DOI: 10.1016/j.animal.2023.101022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 11/19/2023] Open
Abstract
Optimal dietary non-phytate phosphorus (NPP) is essential in poultry to maximise productive and reproductive performance, along with indices of egg and bone quality. This study aimed to establish the NPP requirements of egg-type duck breeders aged from 54 to 80 weeks on the following traits: egg production, egg incubation, egg quality, tibial characteristics, reproductive organ, plasma indices, and the expression of genes related to phosphorus absorption. Longyan duck breeders aged 54 weeks (n = 300) were randomly allotted to five treatments, each containing six replicates of 10 individually caged birds. Birds were fed corn-soybean meal-based diets containing 0.18, 0.25, 0.32, 0.38, and 0.45% NPP/kg for 27 weeks. The tested dietary NPP levels did not affect egg production or egg quality indices. The hatchling weight of ducklings increased (quadratic, P < 0.01) as dietary NPP level increased, and the highest value occurred with 0.25% NPP. The number of large yellow follicles (LYF), and the relative weights of LYF and ovary showed linear and quadratic responses to dietary NPP levels; the lowest number and relative weight of LYF occurred with 0.38% NPP, and the lowest ovarian weight was obtained with 0.25% NPP. There were no differences in tibial length, breaking strength, and mineral density in response to dietary NPP levels. In contrast, tibial content of Ca increased (linear, P < 0.01) with dietary NPP levels increasing from 0.18 to 0.45%, and the tibial content of P increased at 0.32% NPP and the higher dietary NPP levels. Plasma concentration of P showed a quadratic (P < 0.05) response to the dietary NPP levels, where the highest value was seen at 0.38% NPP. In conclusion, dietary NPP levels from 0.18 to 0.45% had no effects on egg production, and egg and tibial quality of duck breeders. The duck breeders fed a diet with 0.25% NPP showed the highest hatchling weight of their offspring, while those fed 0.38% NPP had the lowest number and relative weight of LYF. These results indicated that the diet with 0.25% NPP can be used in egg-type duck breeders to improve the hatchling weight of their offspring, without adverse effects on their productivity. The regression model indicated that the maximal hatchling weight of ducklings was obtained from duck breeders fed the diet with 0.30% NPP.
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Affiliation(s)
- W G Xia
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - K Abouelezz
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China; Department of Poultry Production, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - X B Huang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - K C Li
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - W Chen
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - S Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - Y N Zhang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - C L Jin
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - M M M Azzam
- Animal Production Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - C T Zheng
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China.
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Chen W, Jiang T, Deng Y, Zhang Y, Ai L, Ji P, Wang D. [Sequence analysis of Paragonimus internal transcribed spacer 2 and cyclooxygenase 1 genes in freshwater crabs in Henan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:501-507. [PMID: 38148540 DOI: 10.16250/j.32.1374.2023096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
OBJECTIVE To investigate the sequences of internal transcribed spacer 2 (ITS2) and cyclooxygenase 1 (COX1) genes of Paragonimus metacercariae in freshwater crabs in Henan Province, identify the species of Paragonimus and evaluate its genetic relationships with Paragonimus isolates from other provinces in China. METHODS Freshwater crabs were collected from 8 survey sites in Zhengzhou, Luoyang, Pingdingshan, Nanyang and Jiyuan cities of Henan Province from 2016 to 2021, and Paragonimus metacercariae were detected in freshwater crabs. Genomic DNA was extracted from Paragonimus metacercariae, and the ITS2 and COX1 genes were amplified using PCR assay, followed by sequencing of PCR amplification products. The gene sequences were spliced and aligned using the software DNASTAR, and aligned with the sequences of Paragonimus genes in the GenBank. Phylogenetic trees were created using the MEGA6 software with the Neighbor-Joining method based on ITS2 and COX1 gene sequences, with Fasciola hepatica as the outgroup. RESULTS The detection rates of Paragonimus metacercariae were 6.83% (11/161), 50.82% (31/61), 18.52% (5/26), 8.76% (12/137), 14.29% (9/63), 17.76% (19/105), 18.50% (32/173) and 42.71% (41/96) in freshwater crabs from 8 survey sites in Zhengzhou, Luoyang, Pingdingshan, Nanyang and Jiyuan cities of Henan Province, with a mean detection rate of 19.46% (160/822), and a mean infection intensity of 0.57 metacercariae/g. The amplified ITS2 and COX1 gene fragments of Paragonimus were approximately 500 bp and 450 bp in lengths, respectively. The ITS2 gene sequences of Paragonimus metacercariae from 8 survey sites of Henan Province showed the highest homology (99.8% to 100.0%) with the gene sequence of P. skrjabini (GenBank accession number: MW960209.1), and phylogenetic analysis showed that the Paragonimus in this study was clustered into the same clade with P. skrjabini from Sichuan Province (GenBank accession number: AY618747.1), Guangxi Zhuang Autonomous Region (GenBank accession number: AY618729.1) and Hubei Province (GenBank accession number: AY618751.1), and P. miyazaki from Fujian Province (GenBank accession number: AY618741.1) and Japan (GenBank accession number: AB713405.1). The COX1 gene sequences of Paragonimus metacercariae from 8 survey sites of Henan Province showed the highest homology (90.0% to 100.0%) with the gene sequence of P. skrjabini (GenBank accession number: AY618798.1), and phylogenetic analysis showed that the Paragonimus in this study was clustered into the same clade with all P. skrjabini and clustered into the same sub-clade with P. skrjabini from Hubei Province (GenBank accession numbers: AY618782.1 and AY618764.1). CONCLUSIONS Paragonimus species from freshwater crabs in Henan Province were all characterized as P. skrjabini, and the ITS2 and COX1 gene sequences had the highest homology to those of P. skrjabini from Hubei Province. The results provide insights into study of Paragonimus in Henan Province and China.
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Affiliation(s)
- W Chen
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
| | - T Jiang
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
| | - Y Deng
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
| | - Y Zhang
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
| | - L Ai
- Shanghai Center for Disease Control and Prevention, China
| | - P Ji
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
| | - D Wang
- Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, China
- Henan Provincial Key Laboratory for Infectious Disease Prevention and Control, Zhengzhou, Henan 450016, China
- Henan Medical Key Laboratory for Pathogeny and Vector of Parasitosis, Zhengzhou, Henan 450016, China
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Li B, Chen W, Liu F, Wang X, Qin W, Li S, Lu H, Wang G, Liu X, Li P, Zuo X, Zhang X, Liu L, Yang M. A fully validated method for simultaneous determination of icotinib, osimertinib, gefitinib and O-desmethyl gefitinib in human plasma using UPLC-MS/MS for therapeutic drug monitoring. J Pharm Biomed Anal 2023; 236:115697. [PMID: 37713984 DOI: 10.1016/j.jpba.2023.115697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND AND AIMS A few researches have reported the exposure-efficacy/toxicity relationships of epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs). On account of the large interpatient pharmacokinetic variability, therapeutic drug monitoring (TDM) seems promising for optimizing dosage regimen and improving treatment efficacy and safety. Therefore, a rapid and convenient ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for the determination of icotinib, osimertinib, gefitinib and O-demesthyl gefitinib in human plasma for TDM. MATERIALS AND METHODS Icotinib-D4 and osimertinib-13CD3 were used as the internal standards (ISs). The samples were prepared by protein precipitation using acetonitrile. Chromatographic separation was achieved on a 40 ℃ Shimadzu Shim-pack Scepter C18-120 column (2.1 ×50 mm, 3.0 µm, Japan) by a Shimadzu 30 A solvent management system. Detection was carried out using a Shimadzu LC-MS 8050CL triple quadrupole mass spectrometer coupled with an electrospray ionization source in positive mode. RESULTS This analytical method was fully validated with selectivity, carry-over, linearity, lower limit of quantification, accuracy (from 92.68% to 106.62%) and precision (intra- and inter-day coefficients of variation ranged from 0.92% to 9.85%), matrix effect, extraction recovery, stability and dilution integrity. The calibration curves were developed to be within the concentration ranges of 200-4000 ng/mL for icotinib, 50-1000 ng/mL for osimertinib, gefitinib and O-desmethyl gefitinib in human plasma which meet the needs of routine TDM. CONCLUSIONS The proposed method was used in 100 patients with non-small cell lung cancer for monitoring plasma concentration of the mentioned EGFR-TKIs. The trough concentrations of ICO were distributed between 226.42 ng/mL and 3853.36 ng/mL, peak concentrations were between 609.20 ng/mL and 2191.54 ng/mL. The trough concentrations of OSI were distributed between 110.48 ng/mL and 1183.13 ng/mL. The trough concentrations of GEF were distributed between 117.71 ng/mL and 582.74 ng/mL, while DeGEF was distributed from 76.21 ng/mL to 1939.83 ng/mL with two less than 20 ng/mL. The results of therapeutic drug monitoring aimed to investigate exposure-efficacy/toxicity relationship and improve the efficacy and safety of targeted therapies.
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Affiliation(s)
- Bo Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Fang Liu
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xiaoxue Wang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wei Qin
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Shu Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Hongkai Lu
- Department of Blood Transfusion, China-Japan Friendship Hospital, Beijing 100029, China
| | - Guan Wang
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaoyang Liu
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China; Department of Pharmacy Administration and Clinical Pharmacy School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Pengmei Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xianbo Zuo
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xianglin Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Lihong Liu
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China.
| | - Meng Yang
- National Center for Respiratory Medicine; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China.
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29
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Abel C, Ayres NJ, Ban G, Bison G, Bodek K, Bondar V, Bouillaud T, Chanel E, Chen J, Chen W, Chiu PJ, Crawford CB, Daum M, Doorenbos CB, Emmenegger S, Ferraris-Bouchez L, Fertl M, Fratangelo A, Griffith WC, Grujic ZD, Harris P, Kirch K, Kletzl V, Koss PA, Krempel J, Lauss B, Lefort T, Mullan P, Naviliat-Cuncic O, Pais D, Piegsa FM, Pignol G, Rawlik M, Rienäcker I, Ries D, Roccia S, Rozpedzik D, Saenz-Arevalo W, Schmidt-Wellenburg P, Schnabel A, Segarra EP, Severijns N, Shelton T, Svirina K, Tavakoli Dinani R, Thorne J, Virot R, Yazdandoost N, Zejma J, Ziehl N, Zsigmond G. A large 'Active Magnetic Shield' for a high-precision experiment: nEDM collaboration. Eur Phys J C Part Fields 2023; 83:1061. [PMID: 38021215 PMCID: PMC10661781 DOI: 10.1140/epjc/s10052-023-12225-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023]
Abstract
We present a novel Active Magnetic Shield (AMS), designed and implemented for the n2EDM experiment at the Paul Scherrer Institute. The experiment will perform a high-sensitivity search for the electric dipole moment of the neutron. Magnetic-field stability and control is of key importance for n2EDM. A large, cubic, 5 m side length, magnetically shielded room (MSR) provides a passive, quasi-static shielding-factor of about 10 5 for its inner sensitive volume. The AMS consists of a system of eight complex, feedback-controlled compensation coils constructed on an irregular grid spanned on a volume of less than 1000 m3 around the MSR. The AMS is designed to provide a stable and uniform magnetic-field environment around the MSR, while being reasonably compact. The system can compensate static and variable magnetic fields up to ± 50 μ T (homogeneous components) and ± 5 μ T/m (first-order gradients), suppressing them to a few μ T in the sub-Hertz frequency range. The presented design concept and implementation of the AMS fulfills the requirements of the n2EDM experiment and can be useful for other applications, where magnetically silent environments are important and spatial constraints inhibit simpler geometrical solutions.
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Affiliation(s)
- C. Abel
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
| | - N. J. Ayres
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - G. Ban
- Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - G. Bison
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - K. Bodek
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Cracow, Poland
| | - V. Bondar
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - T. Bouillaud
- LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble, France
| | - E. Chanel
- University of Bern, Albert Einstein Center for Fundamental Physics, 3012 Bern, Switzerland
- Present Address: Institut Laue Langevin, 71 avenue des Martyrs CS 20156, 38042 Grenoble Cedex 9, France
| | - J. Chen
- Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - W. Chen
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - P. -J. Chiu
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
- Present Address: University of Zurich, 8057 Zurich, Switzerland
| | | | - M. Daum
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - C. B. Doorenbos
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - S. Emmenegger
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Present Address: Hochschule Luzern, 6002 Luzern, Switzerland
| | | | - M. Fertl
- Institute of Physics, Johannes Gutenberg University, 55128 Mainz, Germany
| | - A. Fratangelo
- University of Bern, Albert Einstein Center for Fundamental Physics, 3012 Bern, Switzerland
| | - W. C. Griffith
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
| | - Z. D. Grujic
- Institute of Physics Belgrade, University of Belgrade, 11080 Belgrade, Serbia
| | - P. Harris
- Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH UK
| | - K. Kirch
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - V. Kletzl
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - P. A. Koss
- Institute for Nuclear and Radiation Physics, KU Leuven, 3001 Leuven, Belgium
- Present Address: Fraunhofer Institute for Physical Measurement Techniques, 79110 Freiburg, Germany
| | - J. Krempel
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - B. Lauss
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - T. Lefort
- Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - P. Mullan
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - O. Naviliat-Cuncic
- Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | - D. Pais
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - F. M. Piegsa
- University of Bern, Albert Einstein Center for Fundamental Physics, 3012 Bern, Switzerland
| | - G. Pignol
- LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble, France
| | - M. Rawlik
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Present Address: Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - I. Rienäcker
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - D. Ries
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - S. Roccia
- LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble, France
| | - D. Rozpedzik
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Cracow, Poland
| | - W. Saenz-Arevalo
- Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen, 14000 Caen, France
| | | | - A. Schnabel
- Physikalisch Technische Bundesanstalt, Berlin, Germany
| | - E. P. Segarra
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
| | - N. Severijns
- Institute for Nuclear and Radiation Physics, KU Leuven, 3001 Leuven, Belgium
| | | | - K. Svirina
- LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble, France
| | - R. Tavakoli Dinani
- Institute for Nuclear and Radiation Physics, KU Leuven, 3001 Leuven, Belgium
| | - J. Thorne
- University of Bern, Albert Einstein Center for Fundamental Physics, 3012 Bern, Switzerland
| | - R. Virot
- LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble, France
| | - N. Yazdandoost
- Department of Chemistry-TRIGA site, Johannes Gutenberg University, 55128 Mainz, Germany
| | - J. Zejma
- Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Cracow, Poland
| | - N. Ziehl
- ETH Zürich, Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - G. Zsigmond
- Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
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Zhang L, Chen W, Hou ZG, Yang X, Liu MH. [miR-200a involvement in the biological behavior of hepatoma carcinoma cells by targeting the regulatory expression of mesenchymal-epithelial transition factor]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1176-1181. [PMID: 38238951 DOI: 10.3760/cma.j.cn501113-20231108-00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Objective: To study the regulatory effect of miR-200a on mesenchymal-epithelial transition factor (MET) and its impact on the biological behavior of hepatoma carcinoma cells. Method: A luciferase reporter assay was used to determine miR-200a's regulatory impact on MET. Human hepatoma HepG2 cells were divided into a control group, a miR-200a group, a MET overexpression group, and a co-transfection group (miR-200a+MET). After culture, cell proliferation ability, cell migration ability, apoptosis, cell invasion ability, and the expression of MET and apoptosis-related (Bcl-2, Caspase-3, Bax) proteins were detected and observed by cell counting kit-8 (CCK-8), scratch assay, Annexin V-FITC staining, transwell chambers, and western blotting. The two groups were compared using the independent sample t-test. The multiple groups were statistically analyzed using one-way ANOVA. Results: The luciferase experiment showed that miR-200a had target MET. The proliferation rate, number of invasions in cells (55.00 ± 7.21, 85.00 ± 7.94, 164.67 ± 19.22, 104.00± 12.29), scratch healing rate (28.33% ± 5.03%, 61.67% ± 4.04%, 74.67% ± 7.02%, 49.33% ± 9.02%), and expression levels of MET, Bcl-2, and Caspase-3 proteins were lower in the miR-200a group than those in the control group, MET overexpression group, and co-transfection group, while the MET overexpression group had higher indexes than the other three groups, with statistically significant differences between the groups (P <0.05). The apoptosis rate of HepG2 cells and the expression level of Bax protein were higher in the miR-200a group than those in the control group, MET overexpression group, and co-transfection group (19.25% ± 2.98%, 6.80% ± 1.15%, 3.42% ±0.76%, 9.90% ± 2.72%), while the levels of various indexes in the MIF overexpression group were lower than those in the other three groups. The control group and co-transfection group were between the two groups, and the difference between the groups was statistically significant (P <0.05). Conclusion: HepG2 cell proliferation, migration, invasion, and cell apoptosis induction can be inhibited by miR-200a, and the functional mechanism for this may be associated with the miR-200a target's ability to down-regulate MET expression in HepG2 cells.
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Affiliation(s)
- L Zhang
- Department of Radiology, Xingtai People's Hospital, Xingtai 054000, China
| | - W Chen
- Department of Radiology, Xingtai People's Hospital, Xingtai 054000, China
| | - Z G Hou
- Department of Radiology, Xingtai People's Hospital, Xingtai 054000, China
| | - X Yang
- Department of Radiology, Xingtai People's Hospital, Xingtai 054000, China
| | - M H Liu
- Physiology Teaching and Research Department of the Basic Department of Xingtai Medical College, Xingtai 054000, China
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31
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Chen W, Wang YL, Cheng K, Chen BH, Zhang P, Fang QX, Wu DP. [A rational analysis of the commonly used renal tumor scoring systems in predicting surgical outcomes of cystic renal masses]. Zhonghua Yi Xue Za Zhi 2023; 103:3424-3430. [PMID: 37587681 DOI: 10.3760/cma.j.cn112137-20230508-00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Objective: To explore the predictive effect of the renal tumor scoring system on the surgical outcomes of cystic renal masses (CRM). Methods: A retrospective analysis was performed on the data of 234 patients who received robotic-assisted partial nephrectomy (RAPN) treatment in the First Affiliated Hospital of Xi'an Jiaotong University from January 2018 to June 2020. And 31 cases had CRM and 203 cases had solid renal masses (SRM). The propensity score of patients was calculated by logistic regression model, and 1∶2 matching was performed by the nearest neighbor method. The changes in perioperative indexes and long-term estimated glomerular filtration rate (eGFR) in CRM group and SRM group were compared. The CRM group and SRM group were stratified according to the complexity grading of R.E.N.A.L. score and PADUA score, respectively, to compare the difference in the achievement rate of ideal surgical outcome between the two groups, and analyze the predictive factors affected. The CRM diameter was stratified with 4 cm as the cut-off value (CRM1 group with a diameter<4 cm, CRM2 group with a diameter≥4 cm), and the surgical results were compared with the matched SRM1 group and SRM2 group. Results: In the matching cohort, the CRM group comprised 29 patients with a mean age of (48.7±10.8) years, of which 22 (75.9%) were males. The SRM group included 58 patients with a mean age of (50.4±10.2) years, of which 41 (70.7%) were males, with no statistically significant difference (all P>0.05). The warm ischemia time (WIT) [M (Q1,Q3)] in the CRM group was longer than that in the SRM group [23(18, 25) vs 19(17, 25) min, P=0.040]. The operation time (OT) [M (Q1,Q3)] in the CRM group was also longer than that of the SRM group [130(100, 150) vs 108(86, 120) min, P=0.006]. The change in serum creatinine before and after the operation [M (Q1,Q3)] was higher in the CRM group than in the SRM group [15(10, 23) vs 12(6, 17) μmol/L, P=0.030]. The ideal surgical outcomes were achieved in 7 patients (24.1%) in the CRM group and 36 patients (62.1%) in the SRM group. The number of patients achieving ideal surgical outcomes in R.E.N.A.L. intermediate complex surgery and PADUA advanced complex surgery in the SRM group were 24 (58.5%) and 15 (51.7%), respectively, which were higher than those in the CRM group 6 (27.3%) and 1 (5.9%) respectively (P<0.05). Preoperative eGFR (OR=0.758, 95%CI: 0.719-0.799) and the nature of the tumor (CRM as reference, OR=4.883, 95%CI: 1.550-15.378) were influencing factors for achieving the ideal surgical outcome. Subgroup analysis showed that eGFR changes before and after surgery and the estimated blood loss (EBL) in the CRM2 group were higher than those in the SRM2 group, and WIT and OT were longer than those in the SRM2 group (all P<0.05). The EBL and WIT of the CRM1 group were shorter than those of the CRM2 group (P<0.05). Conclusion: The surgical risk of RAPN in complex CRMs with a maximum diameter of≥4 cm is higher than the risk of RAPN in SRM with equivalent R.E.N.A.L. and PADUA scores.
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Affiliation(s)
- W Chen
- Department of Urology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y L Wang
- The Second Department of Surgery, Xixiang County People's Hospital, Hanzhong 723500, China
| | - K Cheng
- Department of Urology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - B H Chen
- Department of Urology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - P Zhang
- Department of Urology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Q X Fang
- Xi'an Jiaotong University Health Science Department, Xi'an 710061, China
| | - D P Wu
- Department of Urology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Jia B, Tang L, Liu H, Zhu Y, Chen W, Chen Q, Li J, Zhong M, Yin A. Alterations and potential roles of microbial population of pregnant mouse saliva and amniotic fluid. Am J Reprod Immunol 2023; 90:e13782. [PMID: 37881125 DOI: 10.1111/aji.13782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 08/15/2023] [Accepted: 09/18/2023] [Indexed: 10/27/2023] Open
Abstract
PROBLEM Prenatal exposure to intrauterine inflammation (IUI) is a crucial event in PTB pathophysiology. However, the relationship between microflora and PTB is not fully elucidated. METHOD OF STUDY In this study, we established an intrauterine inflammation mouse model via LPS intrauterine injection. The saliva and amniotic fluid were collected for 16s RNA gene sequencing. The levels of TNF-α and IL-1β in mouse amniotic fluid were determined by ELISA assays. RESULTS Up to 60% of the operational taxonomic units (OTUs) in the saliva and amniotic fluid of PBS-treated mice were overlapped. LPS treatment-induced changes in the abundance of oral and amniotic fluid microorganisms. Both immune-associated probiotics, salivarius and mastitidis, were still detected in saliva (at significantly increased levels) after LPS-induced intrauterine inflammation and almost no probiotics of any type were detected in amniotic fluid, suggesting that the uterine cavity seems to be more susceptible to LPS compared to the oral cavity. Moreover, the abundance of pathogenic bacteria Escherichia coli was increased in both saliva and amniotic fluid after LPS treatment. The level of TNF-α and IL-1β in amniotic fluid is positively related to the amniotic fluid E. coli abundance. CONCLUSIONS The microbial composition of saliva and amniotic fluid of pregnant mice was similar. LPS-induced intrauterine inflammation decreased the consistency of microbial composition in mouse saliva and amniotic fluid, increased the abundance of E. coli in saliva and amniotic fluid, and decreased the abundance of immune-associated probiotics, especially in amniotic fluid.
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Affiliation(s)
- Bei Jia
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Lijun Tang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Huibing Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Yan Zhu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Wenqian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Qian Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Jing Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
| | - Ailan Yin
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, PR China
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He K, Lin H, Zhang S, Ou Y, Lu J, Chen W, Zhou Y, Li Y, Lin Y, Su J, Xing Y, Chen H, Chen J. BNTA attenuates temporomandibular joint osteoarthritis progression by directly targeting ALDH3A1: An in vivo and in vitro study. Int Immunopharmacol 2023; 124:110963. [PMID: 37741125 DOI: 10.1016/j.intimp.2023.110963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/15/2023] [Accepted: 09/16/2023] [Indexed: 09/25/2023]
Abstract
BNTA is known to have a therapeutic effect on knee osteoarthritis and inflammatory osteoclastogenesis. However, the protective effect of BNTA regarding temporomandibular mandibular joint osteoarthritis (TMJOA) and its underlying mechanism and physiological target remains unclear. In the present study, BNTA ameliorated cartilage degradation and inflammation responses in monosodium iodoacetate (MIA)-induced TMJOA in vivo. In IL-1β-induced condylar chondrocytes, BNTA prevents oxidative stress, inflammatory responses and increasing synthesis of cartilage extracellular matrix through activating nuclear factor-E2-related factor 2 (NRF2) signaling. Suppression of NRF2 signaling abolishes the protective effect of BNTA in TMJOA. Notably, BNTA may bind directly to ALDH3A1 and act as a stabilizer, as evidenced by drug affinity responsive target stability assay (DARTS), cellular thermal shift assay (CETSA) and molecular docking results. Further investigation of the underlying molecular and cellular mechanism infers a positive correlation of ALDH3A1 regulating NRF2 signaling. In conclusion, BNTA may attenuate TMJOA progression via the ALDH3A1/NRF2 axis, inferring that BNTA is a therapeutic target for treating temporomandibular mandibular joint osteoarthritis.
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Affiliation(s)
- Kaixun He
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Hanyu Lin
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Sihui Zhang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Yanjing Ou
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Jie Lu
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Wenqian Chen
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Yuwei Zhou
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Yang Li
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Yanjun Lin
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Jingjing Su
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Yifeng Xing
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Huachen Chen
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China
| | - Jiang Chen
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China; Institute of Stomatology & Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350002, PR China.
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Chen W, Rehsi P, Thompson K, Yeo M, Stals K, He L, Schimmel P, Chrzanowska-Lightowlers ZMA, Wakeling E, Taylor RW, Kuhle B. Clinical and molecular characterization of novel FARS2 variants causing neonatal mitochondrial disease. Mol Genet Metab 2023; 140:107657. [PMID: 37523899 DOI: 10.1016/j.ymgme.2023.107657] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/22/2023] [Accepted: 07/22/2023] [Indexed: 08/02/2023]
Abstract
FARS2 encodes the mitochondrial phenylalanyl-tRNA synthetase (mtPheRS), which is essential for charging mitochondrial (mt-) tRNAPhe with phenylalanine for use in intramitochondrial translation. Many biallelic, pathogenic FARS2 variants have been described previously, which are mostly associated with two distinct clinical phenotypes; an early onset epileptic mitochondrial encephalomyopathy or a later onset spastic paraplegia. In this study, we report on a patient who presented at 3 weeks of age with tachypnoea and poor feeding, which progressed to severe metabolic decompensation with lactic acidosis and seizure activity followed by death at 9 weeks of age. Rapid trio whole exome sequencing identified compound heterozygous FARS2 variants including a pathogenic exon 2 deletion on one allele and a rare missense variant (c.593G > T, p.(Arg198Leu)) on the other allele, necessitating further work to aid variant classification. Assessment of patient fibroblasts demonstrated severely decreased steady-state levels of mtPheRS, but no obvious defect in any components of the oxidative phosphorylation system. To investigate the potential pathogenicity of the missense variant, we determined its high-resolution crystal structure, demonstrating a local structural destabilization in the catalytic domain. Moreover, the R198L mutation reduced the thermal stability and impaired the enzymatic activity of mtPheRS due to a lower binding affinity for tRNAPhe and a slower turnover rate. Together these data confirm the pathogenicity of this FARS2 variant in causing early-onset mitochondrial epilepsy.
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Affiliation(s)
- Wenqian Chen
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Preeya Rehsi
- Metabolic Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Kyle Thompson
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK
| | - Mildrid Yeo
- Metabolic Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Karen Stals
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Langping He
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne NE1 4LP, UK
| | - Paul Schimmel
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA; The Scripps Florida Research Institute at the University of Florida, Jupiter, FL 33458, USA
| | - Zofia M A Chrzanowska-Lightowlers
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK
| | - Emma Wakeling
- North East Thames Regional Genetic Service, Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - Robert W Taylor
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne NE1 4LP, UK.
| | - Bernhard Kuhle
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Cellular Biochemistry, University Medical Center Göttingen, Göttingen 37073, Germany.
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Sun Q, Qi YK, Qi KM, Yan ZL, Cheng H, Chen W, Zhu F, Sang W, Li DP, Cao J, Shi M, Li ZY, Xu KL. [Observation of liver indexes in patients with relapsed/refractory multiple myeloma treated with CAR-T-cells based on BCMA]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:832-837. [PMID: 38049335 PMCID: PMC10694074 DOI: 10.3760/cma.j.issn.0253-2727.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Indexed: 12/06/2023]
Abstract
Objective: To observe the characteristics of the evolution of liver indexes in patients with relapsed/refractory multiple myeloma (RRMM) treated with CAR-T-cells based on BCMA. Methods: Retrospective analysis was performed of patients with RRMM who received an infusion of anti-BCMA CAR-T-cells and anti-BCMA combined with anti-CD19 CAR-T-cells at our center between June 1, 2019, and February 28, 2023. Clinical data were collected to observe the characteristics of changes in liver indexes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), and direct bilirubin (DBIL) in patients, and its relationship with cytokine-release syndrome (CRS) . Results: Ninety-two patients were included in the analysis, including 41 patients (44.6%) in the group receiving a single infusion of anti-BCMA CAR-T-cells, and 51 patients (55.4%) in the group receiving an infusion of anti-BCMA combined with anti-CD19 CAR-T-cells. After infusing CAR-T-cells, 31 patients (33.7%) experienced changes in liver indexes at or above grade 2, which included 20 patients (21.7%) with changes in one index, five patients (5.4%) with changes in two indexes, and six patients (6.5%) with changes in three or more indexes. The median time of peak values of ALT and AST were d17 and d14, respectively, and the median duration of exceeding grade 2 was 5.0 and 3.5 days, respectively. The median time of peak values of TBIL and DBIL was on d19 and d21, respectively, and the median duration of exceeding grade 2 was 4.0 days, respectively. The median time of onset of CRS was d8, and the peak time of fever was d9. The ALT, AST, and TBIL of patients with CRS were higher than those of patients without CRS (P=0.011, 0.002, and 0.015, respectively). CRS is an independent factor that affects ALT and TBIL levels (OR=19.668, 95% CI 18.959-20.173, P=0.001). The evolution of liver indexes can be reversed through anti-CRS and liver-protection treatments, and no patient died of liver injury. Conclusions: In BCMA-based CAR-T-cell therapy for RRMM, CRS is an important factor causing the evolution of liver indexes. The evolution of liver indexes after CAR-T-cell infusion is transient and reversible after treatment.
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Affiliation(s)
- Q Sun
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - Y K Qi
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - K M Qi
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - Z L Yan
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - H Cheng
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - W Chen
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - F Zhu
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - W Sang
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - D P Li
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - J Cao
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - M Shi
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - Z Y Li
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
| | - K L Xu
- Hematology Institute of Xuzhou Medical University, Hematology Department of The Affiliated Hospital of Xuzhou Medical University, Jiangsu Provincial Key Laboratory of Bone Marrow Stem Cells, Xuzhou 221002, China
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Xue Y, Yang X, Zhang H, Zhang T, Chen W, Chang X, Wang Y. [Protective effect of recombinant Schistosoma japonicum cystatin against acute kidney injury associated with acute liver failure in mice]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:331-339. [PMID: 37926467 DOI: 10.16250/j.32.1374.2023067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To evaluate the protective effect of recombinant Schistosoma japonicum cystatin (rSj-Cys) against acute kidney injury induced by acute liver failure and unravel the underlying mechanism, so as to provide insights into the clinical therapy of acute kidney injury. METHODS Twenty-four male C57BL/6J mice at ages of 6 to 8 weeks were randomly divided into the normal control group, rSj-Cys control group, lipopolysaccharide (LPS)/D-galactosamine (D-GaIN) model group and LPS/D-GaIN + rSj-Cys treatment group, of 6 mice each group. Mice in the LPS/D-GaIN group and LPS/D-GaIN + rSj-Cys group were intraperitoneally injected with LPS (10 μg/kg) and D-GaIN (700 mg/kg), and mice in the LPS/D-GaIN + rSj-Cys group were additionally administered with rSj-Cys (1.25 mg/kg) by intraperitoneal injection 30 min post-modeling, while mice in the rSj-Cys group were intraperitoneally injected with rSj-Cys (1.25 mg/kg), and mice in the normal control group were injected with the normal volume of PBS. All mice were sacrificed 6 h post-modeling, and mouse serum and kidney samples were collected. Serum creatinine (Cr) and urea nitrogen (BUN) levels were measured, and the pathological changes of mouse kidney specimens were examined using hematoxylin-eosin (HE) staining. Serum tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels were detected using enzyme-linked immunosorbent assay (ELISA), and the expression of inflammatory factors and pyroptosis-related proteins was quantified in mouse kidney specimens using immunohistochemistry. In addition, the expression of pyroptosis-related proteins and nuclear factor-kappa B (NF-κB) signaling pathway-associated proteins was determined in mouse kidney specimens using Western blotting assay. RESULTS HE staining showed no remarkable abnormality in the mouse kidney structure in the normal control group and the rSj-Cys control group, and renal tubular injury was found in LPS/D-GaIN group, while the renal tubular injury was alleviated in LPS/D-GaIN+rSj-Cys treatment group. There were significant differences in serum levels of Cr (F = 46.33, P < 0.001), BUN (F = 128.60, P < 0.001), TNF-α (F = 102.00, P < 0.001) and IL-6 (F = 202.10, P < 0.001) among the four groups, and lower serum Cr [(85.35 ± 32.05) μmol/L], BUN [(11.90 ± 2.76) mmol/L], TNF-α [(158.27 ± 15.83) pg/mL] and IL-6 levels [(56.72 ± 4.37) pg/mL] were detected in the in LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (all P values < 0.01). Immunohistochemical staining detected significant differences in TNF-α (F = 24.16, P < 0.001) and IL-10 (F = 15.07, P < 0.01) expression among the four groups, and lower TNF-α [(106.50 ± 16.57)%] and higher IL-10 expression [(91.83 ± 5.23)%] was detected in the LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (both P values < 0.01). Western blotting and immunohistochemistry detected significant differences in the protein expression of pyroptosis-related proteins NOD-like receptor thermal protein domain associated protein 3 (NLRP3) (F = 24.57 and 30.72, both P values < 0.001), IL-1β (F = 19.24 and 22.59, both P values < 0.001) and IL-18 (F = 16.60 and 19.30, both P values < 0.001) in kidney samples among the four groups, and lower NLRP3, IL-1β and IL-18 expression was quantified in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (P values < 0.05). In addition, there were significant differences in the protein expression of NF-κB signaling pathway-associated proteins p-NF-κB p-P65/NF-κB p65 (F = 71.88, P < 0.001), Toll-like receptor (TLR)-4 (F = 45.49, P < 0.001) and p-IκB/IκB (F = 60.87, P < 0.001) in mouse kidney samples among the four groups, and lower expression of three NF-κB signaling pathway-associated proteins was determined in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (all P values < 0.01). CONCLUSIONS rSj-Cys may present a protective effect against acute kidney injury caused by acute liver failure through inhibiting inflammation and pyroptosis and downregulating the NF-κB signaling pathway.
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Affiliation(s)
- Y Xue
- Department of Microbiology and Immunology, Shanxi Medical University, Jinzhong, Shanxi 030600, China
| | - X Yang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Provincial Key Laboratory of Infection and Immunology, China
| | - H Zhang
- Department of Pathology and Physiology, Shanxi Medical University, China
| | - T Zhang
- Department of Microbiology and Immunology, Shanxi Medical University, Jinzhong, Shanxi 030600, China
| | - W Chen
- Department of Microbiology and Immunology, Shanxi Medical University, Jinzhong, Shanxi 030600, China
| | - X Chang
- Department of Microbiology and Immunology, Shanxi Medical University, Jinzhong, Shanxi 030600, China
| | - Y Wang
- Department of Microbiology and Immunology, Shanxi Medical University, Jinzhong, Shanxi 030600, China
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Wu Q, Tian F, Chen W, Wang J, Lei B. Specific Recognition and Adsorption of Volatile Organic Compounds by Using MIL-125-Based Porous Fluorescence Probe Material. Nanomaterials (Basel) 2023; 13:2732. [PMID: 37836373 PMCID: PMC10574030 DOI: 10.3390/nano13192732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 10/15/2023]
Abstract
The severity of the volatile organic compounds (VOCs) issue calls for effective detection and management of VOC materials. Metal-organic frameworks (MOFs) are organic-inorganic hybrid crystals with promising prospects in luminescent sensing for VOC detection and identification. However, MOFs have limitations, including weak response signals and poor sensitivity towards VOCs, limiting their application to specific types of VOC gases. To address the issue of limited recognition and single luminosity for specific VOCs, we have introduced fluorescent guest molecules into MOFs as reference emission centers to enhance sensitivity. This composite material combines the gas adsorption ability of MOFs to effectively adsorb VOCs. We utilized (MIL-125/NH2-MIL-125) as the parent material for adsorbing fluorescent molecules and selected suitable solid fluorescent probes (FGFL-B1) through fluorescence enhancement using thioflavin T and MIL-125. FGFL-B1 exhibited a heightened fluorescence response to various VOCs through charge transfer between fluorescent guest molecules and ligands. The fluorescence enhancement effect of FGFL-B1 on tetrahydrofuran (THF) was particularly pronounced, accompanied by a color change from yellow to yellowish green in the presence of CCl4. FGFL-B1 demonstrated excellent adsorption properties for THF and CCl4, with saturated adsorption capacities of 655.4 mg g-1 and 811.2 mg g-1, respectively. Furthermore, FGFL-B1 displayed strong luminescence stability and reusability, making it an excellent sensing candidate. This study addresses the limitations of MOFs in VOC detection, opening avenues for industrial and environmental applications.
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Affiliation(s)
| | | | - Wenqian Chen
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (Q.W.); (F.T.)
| | - Jianying Wang
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (Q.W.); (F.T.)
| | - Bo Lei
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; (Q.W.); (F.T.)
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Zhu Y, Sun X, Jiang C, Lin Q, Weng D, Chen W, Xu Y, Shang J. Adaptive Radiotherapy Guided by PET/CT in Patients with Locally Advanced Non-Small Cell Lung Cancer: A Phase II Randomized Study. Int J Radiat Oncol Biol Phys 2023; 117:S28. [PMID: 37784466 DOI: 10.1016/j.ijrobp.2023.06.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The aim of this study was to determine whether adaptive radiotherapy guided by functional imaging with flourine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) can improve local tumor control in patients with locally advanced non-small cell lung cancer (LA-NSCLC). MATERIALS/METHODS This was a phase II randomized study comparing the efficacy and safety between PET-guided adaptive radiotherapy and conventional radiotherapy. The primary end point was 2-year local-regional tumor control (LRTC) rate. Secondary end points included local-regional progression-free survival (LR-PFS), progression-free survival (PFS), overall survival (OS), and radiation-related toxicities. RESULTS Between November 2012 and June 2017, 72 patients were 1:1 randomized to adaptive and conventional arms. The 2- and 5-year LRTC rates were 63.2% and 58.0% versus 43.0% and 37.6% (P = 0.035) in the adaptive and conventional arms, respectively. The median LR-PFS (14.3 versus 12.0 months; P = 0.010) and PFS (12.8 versus 8.9 months; P = 0.034) were significantly longer in the adaptive arm than in the conventional arm. The median OS was 36.3 months in the adaptive arm and 28.8 months in the conventional arm (P = 0.266). The esophageal volume of receiving ≥60 Gy (V60) in the adaptive arm was lower than that in the conventional arm (P = 0.011), while the V30 for the heart in the adaptive arm was lower than that in the conventional arm (P = 0.077). Other radiological metrological parameters of tumor, organs at risk, and the incidence of ≥grade 2 radiation-related toxicities were not significantly different between the 2 arms. CONCLUSION Compared with conventional radiotherapy, PET-guided adaptive radiotherapy significantly improved the 2-year LRTC rate, LR-PFS, and PFS without increased risks of radiation-related toxicities in patients with LA-NSCLC.
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Affiliation(s)
- Y Zhu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - X Sun
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - C Jiang
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Q Lin
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - D Weng
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - W Chen
- Department of Radiation Oncology, Zhejiang Provincial Hospital, Hangzhou, China
| | - Y Xu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China; Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - J Shang
- Department of Head and Neck Surgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
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Zhang W, Tang Y, Chen W, Gao Y, Wang W, Liu S, Wei L, Cai Y, Zhu Y, Cheng G, Zhang H, Wang X, Zhu S, Wang J, Li G, Yang J, Zhang K, Li N, Li Y, Jin J. Cost-Effectiveness of Short-Course Radiotherapy Based Total Neoadjuvant Therapy for Locally Advanced Rectal Cancer in China. Int J Radiat Oncol Biol Phys 2023; 117:e356-e357. [PMID: 37785230 DOI: 10.1016/j.ijrobp.2023.06.2439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The phase III STELLAR (NCT02533271) trial demonstrated that four cycles of chemotherapy after short-course radiotherapy (SCRT-TNT) were not inferior to the standard care of long-course concurrent radiotherapy (LCRT) in patients with locally advanced rectal cancer (LARC). This study assessed the cost-effectiveness of SCRT-TNT versus LCRT in locally advanced rectal cancer in China on the basis of the STELLAR trial. MATERIALS/METHODS A Markov model was used to synthesize the healthcare costs and benefits of LARC patients based on results from the STELLAR trial. The model assumes that LARC who meet the inclusion criteria of the STELLAR trial experience four possible states: No Evidence of Disease (NED), locally recurrence, distant metastases, or any death from rectal cancer or other unrelated causes, where local recurrence continues to be classified as resectable and unresectable. The transition status period is 3 month, and 5 years is used to calculate direct medical costs and health benefits. The probabilities of states transition after SCRT-TNT or LCRT were derived from the results of the STELLAR trial and previous published article (Table.1). Costs were evaluated from the Chinese payer's perspective reported in early 2022 US dollars (US$1 = 6.78 Chinese Yuan). Sensitivity analyses were performed for key variables. Cost-effectiveness was evaluated using the incremental cost-effectiveness ratio and net monetary benefits. Effectiveness was defined as quality-adjusted life-years (QALYs). Willingness-to-pay (WTP) threshold was set at $43500/QALY. Data were collected from October 3, 2020, to September 20, 2021, and analyzed from November 15, 2020, to October 25, 2021. RESULTS During the 5-year horizon, for the base case scenario, SCRT-TNT incurred a lower total cost and higher QALYs compared with LCCRT. The total cost was $65767 and QALYs were 1.77 for SCRT-TNT; for LCCRT, the total cost was $72802 and QALYs were 1.64. This resulted in an ICER of -$ 55470.69 per QALY. Therefore, SCRT-TNT was a cost-saving and dominating treatment strategy compared with LCRT. Sensitivity analysis showed that ICERs were most sensitive to the parameters of distant metastases risk after treatment. CONCLUSION SCRT-TNT in locally advanced rectal cancer can be a cost-effective alternative to LCRT in China, and should be considered in appropriately selected patients.
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Affiliation(s)
- W Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Y Tang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Gao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - W Wang
- Guizhou Provincial Cancer Hospital, GUIZHOU, China
| | - S Liu
- Jilin Provincial Cancer Hospital, Changchun, China
| | - L Wei
- Department of Radiation Oncology, First Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Y Cai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Y Zhu
- Zhejiang Cancer Hospital, Hangzhou, China
| | - G Cheng
- Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - H Zhang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, China, Wuhan, China
| | - X Wang
- Department of Radiation Oncology/Abdominal Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - S Zhu
- Hunan Cancer Hospital, Changsha, Hunan province, China
| | - J Wang
- Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - G Li
- Department of Radiation Oncology, National Geriatrics Center, Beijing Hospital of the Ministry of Health, Beijing, China
| | - J Yang
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - K Zhang
- Qinghai Red Cross Hospital, XINING, China
| | - N Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, Beijing, China
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Wang J, Chen W, Lai Y. Comprehensive nursing program for children with epilepsy: A randomized controlled trial. Niger J Clin Pract 2023; 26:1498-1504. [PMID: 37929526 DOI: 10.4103/njcp.njcp_93_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Background Epilepsy is a relatively common childhood neurological disease. Children with epilepsy need to take precautions to minimize seizure damage in order to adapt to seizures and manage them. Aim The current study aimed to evaluate the feasibility and effects of a comprehensive nursing program for children with epilepsy to reduce children's symptoms of epilepsy. Subject and Methods Participants were children suffering from epilepsy between 2019 and 2021 at Ningbo Women and Children's Hospital. Seventy children were included in a randomized controlled trial with a comprehensive nursing group (CNG) and an active control group (ACG). Measurements were assessed pre- and post-intervention and at a one- and three-month follow-ups. Children in the CNG learned and practiced the strategies related to the comprehensive nursing intervention. The outcomes were anxiety and depression. Results The results showed that anxiety and depression scores were significantly lower in the CNG than the ACG at 1 and 3 months after intervention (P < 0.05). According to the feasibility results, whereas most participants believed that the program was informative and meaningful, a minority reported that it was time-consuming. Conclusion The intervention has the potential to support children with epilepsy. The program is easily accessible, cost-effective and could be implemented in epilepsy care rehabilitation.
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Affiliation(s)
- J Wang
- Department of Pediatrics, Ningbo Women and Children's Hospital, Ningbo, PR China
| | - W Chen
- Department of Urology, Ningbo Urologic and Nephrotic Hospital, Ningbo, PR China
| | - Y Lai
- Department of Pediatrics, Ningbo Women and Children's Hospital, Ningbo, PR China
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Nosrati JD, Bloom BF, Ma DC, Sidiqi BU, Hassan A, Adair N, Joseph S, Tchelebi L, Herman JM, Potters L, Chen W. Treatment Terminations during Radiation Therapy: A Ten-Year Experience. Int J Radiat Oncol Biol Phys 2023; 117:S96. [PMID: 37784613 DOI: 10.1016/j.ijrobp.2023.06.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Disruptionsin cancer care adversely affect clinical outcomes, particularly when a patient does not complete the prescribed course of treatment. The impact of treatment termination (TT) during radiation therapy has not been well studied. This study addresses TT in a large multi-center department of radiation oncology over a 10-year time period. MATERIALS/METHODS TTs of patients undergoing radiation treatment between January 2013 and December 2022 were prospectively tracked as part of departmentalquality and safety monitoring. A TT was defined as the discontinuation of therapy at any point following consent and simulation. Causes of TTs were categorized as: hospice/death, physician choice related to toxicity, physician choice unrelated to toxicity, patient choice related to toxicity, patient choice unrelated to toxicity, progression of disease, non-cancer illness, or other. The rate of TT was calculated as a percentage of all new patients who start radiation treatments. As part of our ongoing department quality and safety program, incremental changes were made to pre-treatment evaluation and scheduling processes, collectively referred to as the "No-Fly" policy. TT rates during three iterations of this policy were compared. RESULTS Outof 28,707 planned treatment courses, a total of 1,467 TTs were identified (5.1%). 688 (46.9%) involved patients treated with curative intent, 770 (52.5%) with palliative intent, and 9 (0.6%) for benign disease. The rate of TT decreased from 9.3% in 2013 to 3.3% in 2022. Relative to evolutions of our No-Fly policy, the overall TT rate decreased from 8.8% under No-Fly 1 (2013-2014), to 5.2% during No-Fly 2 (2015-2018), and 4.0% with No-Fly 3 (2019-2022) (ANOVA, p<0.001). The most common sites for TT were H&N (19.3%), CNS (17.9%), and Bone Metastases (17.9%). The most common cause of TT was hospice and/or death (36.5%), 69.1% of which were in patients receiving palliative treatments. Other common causes included patient choice unrelated to toxicity (35%), physician choice unrelated to toxicity (8.8%), and progression of disease (7.6%). There were 473 TTs without radiation dose given (1.6% of planned treatments, 32.3% of TTs). CONCLUSION Radiation TTs reflect major deviations from the original care plan. This large cohort study highlights the value of open departmental discourse about TTs, which prompted quality improvement changes that reduced TTs over time. Future studies addressing clinical outcomes can direct treatment decision-making and improve care for our patients.
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Affiliation(s)
- J D Nosrati
- Department of Radiation Medicine, Northwell Health Cancer Institute, New Hyde Park, NY
| | - B F Bloom
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - D C Ma
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - B U Sidiqi
- Department of Radiation Medicine, Northwell Health Cancer Institute, New Hyde Park, NY
| | - A Hassan
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - N Adair
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - S Joseph
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - L Tchelebi
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - J M Herman
- Department of Radiation Medicine, Northwell Health Cancer Institute, New Hyde Park, NY
| | - L Potters
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
| | - W Chen
- Department of Radiation Medicine, Northwell Health Cancer Institute, Lake Success, NY
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Rajoub N, Gerard CJJ, Pantuso E, Fontananova E, Caliandro R, Belviso BD, Curcio E, Nicoletta FP, Pullen J, Chen W, Heng JYY, Ruane S, Liddell J, Alvey N, Ter Horst JH, Di Profio G. A workflow for the development of template-assisted membrane crystallization downstream processing for monoclonal antibody purification. Nat Protoc 2023; 18:2998-3049. [PMID: 37697106 DOI: 10.1038/s41596-023-00869-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 06/06/2023] [Indexed: 09/13/2023]
Abstract
Monoclonal antibodies (mAbs) are commonly used biologic drugs for the treatment of diseases such as rheumatoid arthritis, multiple sclerosis, COVID-19 and various cancers. They are produced in Chinese hamster ovary cell lines and are purified via a number of complex and expensive chromatography-based steps, operated in batch mode, that rely heavily on protein A resin. The major drawback of conventional procedures is the high cost of the adsorption media and the extensive use of chemicals for the regeneration of the chromatographic columns, with an environmental cost. We have shown that conventional protein A chromatography can be replaced with a single crystallization step and gram-scale production can be achieved in continuous flow using the template-assisted membrane crystallization process. The templates are embedded in a membrane (e.g., porous polyvinylidene fluoride with a layer of polymerized polyvinyl alcohol) and serve as nucleants for crystallization. mAbs are flexible proteins that are difficult to crystallize, so it can be challenging to determine the optimal conditions for crystallization. The objective of this protocol is to establish a systematic and flexible approach for the design of a robust, economic and sustainable mAb purification platform to replace at least the protein A affinity stage in traditional chromatography-based purification platforms. The procedure provides details on how to establish the optimal parameters for separation (crystallization conditions, choice of templates, choice of membrane) and advice on analytical and characterization methods.
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Affiliation(s)
- Nazer Rajoub
- CMAC Future Manufacturing Research Hub, c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Technology and Innovation Centre, Glasgow, UK
| | - Charline J J Gerard
- CMAC Future Manufacturing Research Hub, c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Technology and Innovation Centre, Glasgow, UK
| | - Elvira Pantuso
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Tecnologia delle Membrane (ITM), Rende, Italy
| | - Enrica Fontananova
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Tecnologia delle Membrane (ITM), Rende, Italy
| | - Rocco Caliandro
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Cristallografia (IC), Bari, Italy
| | - Benny D Belviso
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Cristallografia (IC), Bari, Italy
| | - Efrem Curcio
- Department of Environmental Engineering, University of Calabria, Rende, Italy
| | - Fiore P Nicoletta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Edificio Polifunzionale, Rende, Italy
| | - James Pullen
- FUJIFILM Diosynth Biotechnologies, Billingham, UK
| | - Wenqian Chen
- Department of Chemical Engineering, Imperial College London, London, UK
| | - Jerry Y Y Heng
- Department of Chemical Engineering, Imperial College London, London, UK
| | - Sean Ruane
- Center for Process Innovation (CPI), Darlington, UK
| | - John Liddell
- Center for Process Innovation (CPI), Darlington, UK
| | | | - Joop H Ter Horst
- CMAC Future Manufacturing Research Hub, c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Technology and Innovation Centre, Glasgow, UK
| | - Gianluca Di Profio
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Tecnologia delle Membrane (ITM), Rende, Italy.
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Zhang D, Wang X, Du W, Qin W, Chen W, Zuo X, Li P. Impact of statin treatment and exposure on the risk of chronic allograft dysfunction in Chinese lung transplant recipients. Pulm Pharmacol Ther 2023; 82:102243. [PMID: 37454870 DOI: 10.1016/j.pupt.2023.102243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/24/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE Chronic lung allograft dysfunction (CLAD) was a common complication following lung transplantation that contributed to long-term morbidity and mortality. Statin therapy had been suggested to attenuate recipient inflammation and immune response, potentially reducing the risk and severity of CLAD. This study aimed to evaluate the impact of statin use and in vivo exposure on the incidence of CLAD in lung transplant recipients (LTRs), as well as their effects on immune cells and inflammatory factors. METHODS A retrospective cohort study was conducted on patients who underwent lung transplantation between January 2017 and December 2020. The incidence of CLAD, as per the 2019 ISHLT criteria, was assessed as the clinical outcome. The plasma concentrations of statin were measured using a validated UPLC-MS/MS method, while inflammation marker levels were determined using ELISA kits. RESULTS The statin group exhibited a significantly lower rate of CLAD (P = 0.002). Patients receiving statin therapy showed lower CD4+ T-cell counts, total T-lymphocyte counts, and IL-6 levels (P = 0.017, P = 0.048, and P = 0.038, respectively). Among the CLAD groups, the atorvastatin level (2.51 ± 1.31 ng/ml) was significantly lower than that in the non-CLAD group (OR = 1.438, 95%CI (1.007-2.053), P = 0.046). CONCLUSION Statin therapy significantly reduced the incidence of CLAD, as well as immune cell counts and inflammatory cytokine levels in LTRs. Although the statin exposure was significantly lower in CLAD patients, it was not associated with the incidence of CLAD.
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Affiliation(s)
- Dan Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Xiaoxing Wang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Wenwen Du
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Wei Qin
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Xianbo Zuo
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China; Department of Dermatology, China-Japan Friendship Hospital, Beijing, 100029, China.
| | - Pengmei Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China.
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Kumar KA, Ravella R, Geethakumari PR, Awan F, Aguilera TA, Li X, Öz OK, Kandathil A, Chen W, Fuda F, Ahn C, Iyengar P, Desai NB, Timmerman RD. Phase I Trial of 'Re-Priming' Radiation Therapy for Relapsed/Refractory Non-Hodgkin Lymphoma Patients in Incomplete Response after Chimeric Antigen Receptor T-Cell (CAR-T) Therapy. Int J Radiat Oncol Biol Phys 2023; 117:S51-S52. [PMID: 37784517 DOI: 10.1016/j.ijrobp.2023.06.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Inpatients with relapsed/refractory non-Hodgkin lymphoma (R/R NHL) treated with CD19-directed CAR-T, only ∼40% achieve complete response (CR) by day 30 PET/CT evaluation. Of those who do not, the large majority (∼70%) ultimately fail, providing an ideal target for early therapeutic intervention to 're-prime' CAR-T. Preclinical and early clinical studies suggest potential synergy and immune augmentation when combining RT with CAR-T. Here we report the phase I results of a prospective phase I/II clinical trial hypothesizing that early salvage focal RT to poor responding sites of disease after CAR-T in R/R NHL patients is safe (phase I) and will improve conversion to CR by day 90 post-CAR-T PET/CT from 29% (historical control) to 58% (phase II). MATERIALS/METHODS Weopened a single-arm open-label phase I/II prospective clinical trial at our institution for R/R NHL patients treated with CD19-directed CAR-T with incomplete response on day 30 post-CAR-T PET/CT scan (defined as Lugano > = 4). The phase I component used a 'Rolling 6' design with 6 patients enrolled concurrently at the "definitive" dose level (40-50 Gy EQD2 [i.e., 30 Gy in 5 fractions], with de-escalation to "palliative" dose level (20-32.5 Gy EQD2 [i.e., 20 Gy in 5 fractions]) if >2 dose-limiting toxicities (DLT) observed. Hypofractionated regimens (i.e., 5 fractions) directed only to residual FDG-avid disease were recommended to minimize lymphopenia and potentially result in a more favorable immune microenvironment. DLT rate was defined within 60 days of RT by CTCAE v5.0 grade 4+ hematologic, grade 3+ dermatitis/burn, pneumonitis, enteritis, or other toxicity attributable to RT, as well as new grade 3+ cytokine release syndrome (CRS) per ASTCT consensus guidelines or grade 3+ neurotoxicity per ASTCT ICANS consensus guidelines for adults. RESULTS BetweenApril 2021 and July 2022, 6 patients were enrolled. All 6 patients had diffuse large B-cell lymphoma (DLBCL), with 3/6 (50%) transformed from low-grade follicular lymphoma. 2/6 had primary refractory DLBL, while the other 4/6 had median 2.5 lines of treatment prior to CAR-T. No patient had prior RT to a site of residual FDG-avid disease on day 30 post-CAR-T PET/CT. 5/6 patients were treated to 30 Gy in 5 fractions, with the remainder patient treated to 36 Gy in 10 fractions. No grade 3+ DLTs related to RT were observed in the 60-day post-RT period. RT related toxicities included grad 1 alopecia, grade 1 radiation pneumonitis, grade 1 nausea & vomiting, and grade 2 skin infection. CONCLUSION Early salvage focal "definitive" dose RT to sites of incomplete response on day 30 post-CAR-T PET/CT for R/R/ NHL patients was safe with no de-escalation of dose needed. This dose will used in the subsequent phase II component of the trial.
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Affiliation(s)
- K A Kumar
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - R Ravella
- UT Southwestern Medical Center, Dallas, TX
| | | | - F Awan
- Division of Hematologic Malignancies and Stem Cell Transplantation, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX
| | - T A Aguilera
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - X Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - O K Öz
- University of Texas Southwestern Department of Radiation Oncology, Dallas, TX
| | | | - W Chen
- University of Texas Southwestern Medical Center, Dallas, TX
| | - F Fuda
- UT Southwestern, Dallas, TX
| | - C Ahn
- Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, TX
| | - P Iyengar
- University of Texas Southwestern Department of Radiation Oncology, Dallas, TX
| | - N B Desai
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - R D Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
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Ma J, Liu K, Chen W, Wang T, Xu Z, Li Y, Zhao B, Zhou L, Wang F, Li C. A dual-centre study on the radioprotective effect of a novel X-ray protection device during coronary intervention. Clin Radiol 2023; 78:e758-e763. [PMID: 37419771 DOI: 10.1016/j.crad.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/04/2023] [Accepted: 06/04/2023] [Indexed: 07/09/2023]
Abstract
AIM To investigate the shielding efficiency of a novel X-ray protection device (NPD) compared with the traditional lead clothing (TLC) during coronary intervention. MATERIALS AND METHODS This study was performed prospectively in two centres. A total of 200 coronary interventions were included and assigned equally into the NPD or TLC group. The NPD is a floor-standing X-ray protection device, which mainly composes of a barrel-like frame and two layers of lead rubber. Thermoluminescent dosimeters (TLDs) were adopted to detect the cumulative absorbed doses, and were attached outside the NPD or TLC or body of the first operator at four different height levels in four directions during the procedure. RESULTS The cumulative doses outside the NPD were comparable to that of the TLC (2,398.33 ± 2,341.64 versus 1,624.09 ± 1,732.20 μSv, p=0.366), and the cumulative doses inside the NPD were significantly lower than those inside the TLC (40 ± 0 versus 732.28 ± 919.83 μSv, p<0.001). As the TLC did not cover the calf segment of the operator, the area at 50 cm height from the floor in the TLC group was unshielded. The shielding efficiency of NPD was significantly higher than that of the TLC (98.2 ± 0.63% versus 52.11 ± 38.97%, p=0.021). CONCLUSION The NPD has a significantly higher shielding efficacy than that of the TLC, in particular, it protects the operators' lower limb, liberates their lower body from wearing heavy lead apron, and may consequently reduce the radiation or body-load associated complications.
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Affiliation(s)
- J Ma
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - K Liu
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Department of Cardiology, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - W Chen
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, Jiangsu, China
| | - T Wang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Department of Cardiology, The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Z Xu
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Y Li
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - B Zhao
- Department of Cardiology, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - L Zhou
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
| | - F Wang
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, Jiangsu, China.
| | - C Li
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
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Ye XL, Chen W, Han C, Cheng F, Liu AB, Mu ZH, Weng YH. [Comparison of therapeutic effects of laparoscopy at different times on abdominal infection caused by gastrointestinal perforation]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:866-868. [PMID: 37709695 DOI: 10.3760/cma.j.cn441530-20230620-00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
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Lv M, Hou D, Wan J, Ye T, Zhang L, Fan J, Li C, Dong Y, Chen W, Rong S, Sun Y, Xu J, Cai L, Gao X, Zhu J, Huang Z, Xu Z, Li L. OsWRKY97, an Abiotic Stress-Induced Gene of Rice, Plays a Key Role in Drought Tolerance. Plants (Basel) 2023; 12:3338. [PMID: 37765501 PMCID: PMC10536077 DOI: 10.3390/plants12183338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Drought stress is one of the major causes of crop losses. The WRKY families play important roles in the regulation of many plant processes, including drought stress response. However, the function of individual WRKY genes in plants is still under investigation. Here, we identified a new member of the WRKY families, OsWRKY97, and analyzed its role in stress resistance by using a series of transgenic plant lines. OsWRKY97 positively regulates drought tolerance in rice. OsWRKY97 was expressed in all examined tissues and could be induced by various abiotic stresses and abscisic acid (ABA). OsWRKY97-GFP was localized to the nucleus. Various abiotic stress-related cis-acting elements were observed in the promoters of OsWRKY97. The results of OsWRKY97-overexpressing plant analyses revealed that OsWRKY97 plays a positive role in drought stress tolerance. In addition, physiological analyses revealed that OsWRKY97 improves drought stress tolerance by improving the osmotic adjustment ability, oxidative stress tolerance, and water retention capacity of the plant. Furthermore, OsWRKY97-overexpressing plants also showed higher sensitivity to exogenous ABA compared with that of wild-type rice (WT). Overexpression of OsWRKY97 also affected the transcript levels of ABA-responsive genes and the accumulation of ABA. These results indicate that OsWRKY97 plays a crucial role in the response to drought stress and may possess high potential value in improving drought tolerance in rice.
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Affiliation(s)
- Miaomiao Lv
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Dejia Hou
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China;
| | - Jiale Wan
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Taozhi Ye
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Lin Zhang
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Jiangbo Fan
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Chunliu Li
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Yilun Dong
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Wenqian Chen
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Songhao Rong
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Yihao Sun
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Jinghong Xu
- Crop Research Institute, Academy of Agricultural and Forestry Sciences, Chengdu 611130, China
| | - Liangjun Cai
- Crop Research Institute, Academy of Agricultural and Forestry Sciences, Chengdu 611130, China
| | - Xiaoling Gao
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Jianqing Zhu
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Zhengjian Huang
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
| | - Zhengjun Xu
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Lihua Li
- Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, China (S.R.); (Z.H.)
- Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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Tang L, Dang Q, Tang Y, Xu Q, Zhu M, Han X, Liu P, Chen W. Synthesis of Fluoride-Substituted Layered Perovskites ZnMoO 4 with an Enhanced Photocatalytic Activity. ACS Appl Mater Interfaces 2023; 15:43251-43258. [PMID: 34967214 DOI: 10.1021/acsami.1c23290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Oxyfluorides possess considerable attention for their multiple excellent properties, but the conventional high-temperature solid-state syntheses have seen bottlenecks in the synthesis of new compounds. Herein, we report a novel layered oxyfluoride ZnMoO4:F, which is prepared by a facile hydrothermal method using ZnF2 as the fluoride source. The fluoride anions are successfully introduced into the oxygen sublattice, which is confirmed by a combined analysis using XRD, STEM, and TGA techniques. The as-synthesized ZnMoO4:F has an absorption edge at around 550 nm, indicating a red shift of Eg to the visible region compared to the oxide counterpart. The layered oxyfluoride exhibits an enhanced photocatalytic active for hydrogen evolution under simulated sunlight (λ > 350 nm), and the activity of ZnMoO4:F (651.9 μmol g-1) was 2 times higher than that of ZnMoO4 (309.7 μmol g-1). Further electrochemical analysis has shown that the conduction band position plays a critical role in the high performances of ZnMoO4:F. This work sheds new light on the future design and synthesis of novel fluoride-doped materials for photocatalysis applications.
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Affiliation(s)
- Liang Tang
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Qi Dang
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Ya Tang
- Department of Chemistry, School of Science, Shanghai University, Shanghai 200444, China
| | - Qinshang Xu
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Min Zhu
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xiaocang Han
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 China
| | - Pan Liu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 China
| | - Wenqian Chen
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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Qin W, Chen W, Wang X, Zhang D, Du W, Li S, Li B, Zuo X, Wang X. A highly sensitive method for determination of tacrolimus in peripheral blood mononuclear cells by nano liquid chromatography-high resolution accurate mass spectrometry. J Chromatogr A 2023; 1706:464259. [PMID: 37567001 DOI: 10.1016/j.chroma.2023.464259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023]
Abstract
The determination of intracellular tacrolimus concentration in peripheral blood mononuclear cells (PBMCs) is crucial for assessing the effect-site concentration of tacrolimus. Analytical methods previously reported required a minimum of 3 mL of whole blood sample for measuring the tacrolimus concentration. In this study, we developed a highly sensitive method using EASY nLC 1200 combined with Q Exactive orbitrap mass spectrometer for detecting tacrolimus in PBMCs, requiring only 0.5-2 mL of sample. Furthermore, we compared two primary normalization methods for PBMCs tacrolimus concentration using Passing-Bablok regression, Bland-Altman analysis, Spearman's rank correlation, and Mountain plot. The newly established method was employed to compare tacrolimus concentrations in whole blood and PBMCs among 194 lung transplant recipients. The developed method exhibited high sensitivity with a lower limit of quantitation at 5 pg/mL, and excellent intra- and inter-days accuracy and precision. The comparison between different normalization methods for PBMCs tacrolimus concentration revealed a strong correlation between PBMCs count and intracellular protein amount within these cells. This finding suggests that both PBMCs count and intracellular protein amount can be used for normalizing intracellular tacrolimus levels and can be mutually converted. However, a weaker correlation was observed between PBMCs and whole-blood tacrolimus concentrations in lung transplant recipients, warranting further investigation. The method reported herein enables the quantification of PBMCs tacrolimus concentration using smaller volumes of whole blood samples, which has significant implications for both patients and laboratory personnel.
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Affiliation(s)
- Wei Qin
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wenqian Chen
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xiaoxing Wang
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Dan Zhang
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wenwen Du
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Shu Li
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Bo Li
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xianbo Zuo
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China.
| | - Xiaoxue Wang
- Department of pharmacy, China-Japan Friendship Hospital, Beijing 100029, China.
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Chen W, Wang Z, Shi JN, Zhang T. [Fluid overload-associated large B-cell lymphoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:949-951. [PMID: 37670629 DOI: 10.3760/cma.j.cn112151-20230105-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Affiliation(s)
- W Chen
- Department of Pathology, Jiangsu Province Hospital(the First Affiliated Hospital of Nanjing Medical University), Nanjing 210029, China
| | - Z Wang
- Department of Pathology, Jiangsu Province Hospital(the First Affiliated Hospital of Nanjing Medical University), Nanjing 210029, China
| | - J N Shi
- Department of Hematology,Nanjing Jiangning Hospital(the Affiliated Jiangning Hospital of Nanjing Medical University), Nanjing 211100, China
| | - T Zhang
- Department of Hematology,Nanjing Jiangning Hospital(the Affiliated Jiangning Hospital of Nanjing Medical University), Nanjing 211100, China
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