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Ding R, Yu J, Ke W, Du L, Cheng G, Hu S, Xu Y, Liu Y. TLR2 regulates Moraxella catarrhalis adhesion to and invasion into alveolar epithelial cells and mediates inflammatory responses. Virulence 2024; 15:2298548. [PMID: 38169345 PMCID: PMC10772937 DOI: 10.1080/21505594.2023.2298548] [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: 05/09/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Moraxella catarrhalis is a major cause of chronic obstructive pulmonary disease. Toll-like receptor 2 (TLR2) plays an important role in the inflammatory response in host respiratory epithelial cells. M. catarrhalis induces an inflammatory immune response in respiratory epithelial cells that is mostly dependent on TLR2. However, the mechanisms by which this pathogen adheres to and invades the respiratory epithelium are not well understood. The present study aimed to reveal the role of TLR2 in M. catarrhalis adhesion to and invasion into alveolar epithelial cells, using molecular techniques. Pretreatment with the TLR2 inhibitor TLR2-IN-C29 enhanced M. catarrhalis adhesion to A549 cells but reduced its invasion, whereas the agonist Pam3CSK4 reduced both M. catarrhalis adhesion and invasion into A549 cells. Similarly, M. catarrhalis 73-OR strain adhesion and invasion were significantly reduced in TLR2-/- A549 cells. Moreover, the lung clearance rate of the 73-OR strain was significantly higher in TLR2-/- C57/BL6J mice than in wild-type (WT) mice. Histological analysis showed that inflammatory responses were milder in TLR2-/- C57/BL6J mice than in WT mice, which was confirmed by a decrease in cytokine levels in TLR2-/- C57/BL6J mice. Overall, these results indicate that TLR2 promoted M. catarrhalis adhesion and invasion of A549 cells and lung tissues and mediated inflammatory responses in infected lungs. This study provides important insights into the development of potential therapeutic strategies against M. catarrhalis and TLR2-induced inflammatory responses.
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Affiliation(s)
- Rui Ding
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Jinhan Yu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weixin Ke
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Lijun Du
- Department of Clinical Laboratory, Nanchong Central Hospital, the Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Guixue Cheng
- Department of Clinical Laboratory, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Siqi Hu
- Faculty of Pediatrics, the Chinese PLA General Hospital, Beijing, China
| | - Yingchun Xu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Yali Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
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Fan C, Jiang Z, Teng C, Song X, Li L, Shen W, Jiang Q, Huang D, Lv Y, Du L, Wang G, Hu Y, Man S, Zhang Z, Gao N, Wang F, Shi T, Xin T. Efficacy and safety of intrathecal pemetrexed for TKI-failed leptomeningeal metastases from EGFR+ NSCLC: an expanded, single-arm, phase II clinical trial. ESMO Open 2024; 9:102384. [PMID: 38377785 PMCID: PMC11076967 DOI: 10.1016/j.esmoop.2024.102384] [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: 10/26/2023] [Revised: 01/06/2024] [Accepted: 01/19/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND This study aimed to evaluate the efficacy and safety of intrathecal pemetrexed (IP) for treating patients with leptomeningeal metastases (LM) from non-small-cell lung cancer (NSCLC) who progressed from epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI) treatment in an expanded, prospective, single-arm, phase II clinical study (ChiCTR1800016615). PATIENTS AND METHODS Patients with confirmed NSCLC-LM who progressed from TKI received IP (50 mg, day 1/day 5 for 1 week, then every 3 weeks for four cycles, and then once monthly) until disease progression or intolerance. Objectives were to assess overall survival (OS), response rate, and safety. Measurable lesions were assessed by investigator according to RECIST version 1.1. LM were assessed according to the Response Assessment in Neuro-Oncology (RANO) criteria. RESULTS The study included 132 patients; 68% were female and median age was 52 years (31-74 years). The median OS was 12 months (95% confidence interval 10.4-13.6 months), RANO-assessed response rate was 80.3% (106/132), and the most common adverse event was myelosuppression (n = 42; 31.8%), which reversed after symptomatic treatment. The results of subgroup analysis showed that absence of brain parenchymal metastasis, good Eastern Cooperative Oncology Group score, good response to IP treatment, negative cytology after treatment, and patients without neck/back pain/difficult defecation had longer survival. Gender, age, previous intrathecal methotrexate/cytarabine, and whole-brain radiotherapy had no significant influence on OS. CONCLUSIONS This study further showed that IP is an effective and safe treatment method for the EGFR-TKI-failed NSCLC-LM, and should be recommended for these patients in clinical practice and guidelines.
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Affiliation(s)
- C Fan
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Z Jiang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - C Teng
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - X Song
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - L Li
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - W Shen
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Q Jiang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - D Huang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Y Lv
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - L Du
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - G Wang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Y Hu
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - S Man
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Z Zhang
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin
| | - N Gao
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - F Wang
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - T Shi
- Department of Oncology, Heilongjiang Sengong General Hospital, Harbin, People's Republic of China
| | - T Xin
- Department of Oncology, Second Affiliated Hospital of Harbin Medical University, Harbin.
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Wang C, Xu H, Liu G, Liu J, Yu H, Chen B, Zheng G, Shu M, Du L, Xu Z, Huang L, Li H, Shu S, Chen Y. A multicenter clinical epidemiology of pediatric pneumococcal meningitis in China: results from the Chinese Pediatric Bacterial Meningitis Surveillance (CPBMS) 2019-2020. Front Cell Infect Microbiol 2024; 14:1353433. [PMID: 38558854 PMCID: PMC10978625 DOI: 10.3389/fcimb.2024.1353433] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/05/2024] [Indexed: 04/04/2024] Open
Abstract
Objective To analyze the clinical epidemiological characteristics including clinical features, disease prognosis of pneumococcal meningitis (PM), and drug sensitivity of S. pneumoniae isolates in Chinese children. Methods A retrospective analysis was performed on the clinical, laboratory microbiological data of 160 hospitalized children less than 15 years of age with PM from January 2019 to December 2020 in 33 tertiary hospitals in China. Results A total of 160 PM patients were diagnosed, including 103 males and 57 females The onset age was 15 days to 15 years old, and the median age was 1 year and 3 months. There were 137 cases (85.6%) in the 3 months to <5 years age group, especially in the 3 months to <3 years age group (109 cases, 68.2%); S. pneumoniae was isolated from cerebrospinal fluid (CSF) culture in 95(35.6%), and 57(35.6%) in blood culture. The positive rates of S. pneumoniae detection by CSF metagenomic next-generation sequencing (mNGS)and antigen detection method were 40.2% (35/87) and 26.9% (21/78). Fifty-five cases (34.4%) had one or more predisposing factors of bacterial meningitis; and 113 cases (70.6%) had one or more extracranial infection diseases Fever (147, 91.9%) was the most common clinical symptom, followed by vomiting (61, 38.1%) and altered mental status (47,29.4%). Among 160 children with PM, the main intracranial imaging complications were subdural effusion and (or) empyema in 43 cases (26.9%), hydrocephalus in 24 cases (15.0%), cerebral abscess in 23 cases (14.4%), intracranial hemorrhage in 8 cases (5.0%), and other cerebrovascular diseases in 13 cases (8.1%) including encephalomalacia, cerebral infarction, and encephalatrophy. Subdural effusion and (or) empyema and hydrocephalus mainly occurred in children < 1 years old (90.7% (39/43) and 83.3% (20/24), respectively). 17 cases with PM (39.5%) had more than one intracranial imaging abnormality. S. pneumoniae isolates were completely sensitive to vancomycin (100.0%, 75/75), linezolid (100.0%,56/56), ertapenem (6/6); highly sensitive to levofloxacin (81.5%, 22/27), moxifloxacin (14/17), rifampicin (96.2%, 25/26), and chloramphenicol (91.3%, 21/23); moderately sensitive to cefotaxime (56.1%, 23/41), meropenem (51.1%, 23/45) and ceftriaxone (63.5, 33/52); less sensitive to penicillin (19.6%, 27/138) and clindamycin (1/19); completely resistant to erythromycin (100.0%, 31/31). The cure and improvement rate were 22.5% (36/160)and 66.3% (106/160), respectively. 18 cases (11.3%) had an adverse outcome, including 6 cases withdrawing treatment therapy, 5 cases unhealed, 5 cases died, and 2 recurrences. S. pneumoniae was completely susceptible to vancomycin (100.0%, 75/75), linezolid (100.0%, 56/56), and ertapenem (6/6); susceptible to cefotaxime, meropenem, and ceftriaxone in the order of 56.1% (23/41), 51.1% (23/45), and 63.5 (33/52); completely resistant to erythromycin (100.0%, 31/31). Conclusion Pediatric PM is more common in children aged 3 months to < 3 years old. Intracranial complications mostly occur in children < 1 year of age with fever being the most common clinical manifestations and subdural effusion and (or) empyema and hydrocephalus being the most common complications, respectively. CSF non-culture methods can facilitate improving the detection rate of pathogenic bacteria. More than 10% of PM children had adverse outcomes. S. pneumoniae strains are susceptible to vancomycin, linezolid, ertapenem, levofloxacin, moxifloxacin, rifampicin, and chloramphenicol.
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Affiliation(s)
- Caiyun Wang
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, China
| | - Hongmei Xu
- Department of Infectious Disease, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Gang Liu
- Department of Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
- Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, Beijing, China
| | - Jing Liu
- Department of Infectious Disease, Hunan Children’s Hospital, Changsha, Hunan, China
| | - Hui Yu
- Department of Infectious Disease, The Children’s Hospital of Fudan University, Shanghai, China
| | - Biquan Chen
- Department of Infection, Anhui Province Children’s Hospital, Hefei, Anhui, China
| | - Guo Zheng
- Department of Neurology, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Shu
- Department of Pediatrics, West China Second University Hospital, Sichuan University/West China Women’s and Children’s Hospital, Chengdu, Sichuang, China
| | - Lijun Du
- Department of Neurology, Children’s Hospital of Shanxi, Taiyuan, Shanxi, China
| | - Zhiwei Xu
- Pediatric Inpatient Ward, The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lisu Huang
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, China
- Department of Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haibo Li
- Outpatient Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Sainan Shu
- Department of Pediatric Infection and Gastroenterology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yinghu Chen
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, China
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Liu R, Li X, Liu Y, Du L, Zhu Y, Wu L, Hu B. A high-speed microscopy system based on deep learning to detect yeast-like fungi cells in blood. Bioanalysis 2024; 16:289-303. [PMID: 38334080 DOI: 10.4155/bio-2023-0193] [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: 02/10/2024] Open
Abstract
Background: Blood-invasive fungal infections can cause the death of patients, while diagnosis of fungal infections is challenging. Methods: A high-speed microscopy detection system was constructed that included a microfluidic system, a microscope connected to a high-speed camera and a deep learning analysis section. Results: For training data, the sensitivity and specificity of the convolutional neural network model were 93.5% (92.7-94.2%) and 99.5% (99.1-99.5%), respectively. For validating data, the sensitivity and specificity were 81.3% (80.0-82.5%) and 99.4% (99.2-99.6%), respectively. Cryptococcal cells were found in 22.07% of blood samples. Conclusion: This high-speed microscopy system can analyze fungal pathogens in blood samples rapidly with high sensitivity and specificity and can help dramatically accelerate the diagnosis of fungal infectious diseases.
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Affiliation(s)
- Ruiqi Liu
- Guangxi Key Laboratory of Special Biomedicine, School of Medicine, Guangxi University, Nanning, Guangxi, P.R. China
| | - Xiaojie Li
- Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yingyi Liu
- Guangxi Key Laboratory of Special Biomedicine, School of Medicine, Guangxi University, Nanning, Guangxi, P.R. China
| | - Lijun Du
- Department of Clinical Laboratory, Huadu District People's Hospital of Guangzhou, Guangdong, China
| | - Yingzhu Zhu
- Guangzhou Waterrock Gene Technology, Guangdong, China
| | - Lichuan Wu
- Guangxi Key Laboratory of Special Biomedicine, School of Medicine, Guangxi University, Nanning, Guangxi, P.R. China
| | - Bo Hu
- Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
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Li Y, Wu Y, Li D, Du L, Zhao L, Wang R, Chen X, Jia X, Ma R, Wang T, Li J, Zhang G, Wang X, Hu M, Chen X, Wang X, Kang W, Sun H, Xu Y, Liu Y. Multicenter comparative genomic study of Klebsiella oxytoca complex reveals a highly antibiotic-resistant subspecies of Klebsiellamichiganensis. J Microbiol Immunol Infect 2024; 57:138-147. [PMID: 37953085 DOI: 10.1016/j.jmii.2023.10.014] [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: 08/03/2023] [Revised: 10/19/2023] [Accepted: 10/29/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND The Klebsiella oxytoca complex is an opportunistic pathogen that has been recently identified as an actual complex. However, the characteristics of each species remain largely unknown. We aimed to study the clinical prevalence, antimicrobial profiles, genetic differences, and interaction with the host of each species of this complex. METHODS One hundred and three clinical isolates of the K. oxytoca complex were collected from 33 hospitals belonging to 19 areas in China from 2020 to 2021. Species were identified using whole genome sequencing based on average nucleotide identity. Clinical infection characteristics of the species were analyzed. Comparative genomics and pan-genome analyses were performed on these isolates and an augmented dataset, including 622 assemblies from the National Center for Biotechnology Information. In vitro assays evaluating the adhesion ability of human respiratory epithelial cells and survivability against macrophages were performed on randomly selected isolates. RESULTS Klebsiella michiganensis (46.6%, 48/103) and K. oxytoca (35.92%, 37/103) were the major species of the complex causing human infections. K. michiganensis had a higher genomic diversity and larger pan-genome size than did K. oxytoca. K. michiganensis isolates with blaoxy-5 had a higher resistance rate to various antibiotics, antimicrobial gene carriage rate, adhesion ability to human respiratory epithelial cells, and survival rate against macrophages than isolates of other species. CONCLUSION Our study revealed the genetic diversity of K. michiganensis and firstly identified the highly antimicrobial-resistant profile of K. michiganensis carrying blaoxy-5.
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Affiliation(s)
- Yi Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100730, China
| | - Yun Wu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100730, China
| | - Dingding Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Lijun Du
- Department of Clinical Laboratory, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, 637000, China
| | - Lu Zhao
- Laboratory of Xuchang Central Hospital, Xuchang, Henan Province, China
| | - Rongxue Wang
- Zhaotong Hospital of Traditional Chinese Medicine, Zhaotong, Yunnan Province, China
| | - Xinfei Chen
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100730, China
| | - Xinmiao Jia
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Ruirui Ma
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Tong Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Jin Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Ge Zhang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xing Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Mengting Hu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xingyu Chen
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xin Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Wei Kang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Hongli Sun
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China
| | - Yingchun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China.
| | - Yali Liu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, 100730, China.
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Zhang Y, Du L, Wang C, Jiang Z, Duan Q, Li Y, Xie Z, He Z, Sun Y, Huang L, Lu L, Wen C. Neddylation is a novel therapeutic target for lupus by regulating double negative T cell homeostasis. Signal Transduct Target Ther 2024; 9:18. [PMID: 38221551 PMCID: PMC10788348 DOI: 10.1038/s41392-023-01709-9] [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: 05/07/2023] [Revised: 10/15/2023] [Accepted: 11/15/2023] [Indexed: 01/16/2024] Open
Abstract
Systemic lupus erythematosus (SLE), a severe autoimmune disorder, is characterized by systemic inflammatory response, autoantibody accumulation and damage to organs. The dysregulation of double-negative (DN) T cells is considered as a crucial commander during SLE. Neddylation, a significant type of protein post-translational modification (PTM), has been well-proved to regulate T cell-mediated immune response. However, the function of neddylation in SLE is still unknown. Here, we reported that neddylation inactivation with MLN4924, a specific inhibitor of NEDD8-activating enzyme E1 (NAE1), or genetic abrogation of Ube2m in T cells decreased DN T cell accumulation and attenuated murine lupus development. Further investigations revealed that inactivation of neddylation blocked Bim ubiquitination degradation and maintained Bim level in DN T cells, contributing to the apoptosis of the accumulated DN T cells in lupus mice. Then double knockout (KO) lupus-prone mice (Ube2m-/-Bim-/-lpr) were generated and results showed that loss of Bim reduced Ube2m deficiency-induced apoptosis in DN T cells and reversed the alleviated lupus progression. Our findings identified that neddylation inactivation promoted Bim-mediated DN T cell apoptosis and attenuated lupus progression. Clinically, we also found that in SLE patients, the proportion of DN T cells was raised and their apoptosis was reduced. Moreover, compared to healthy groups, SLE patients exhibited decreased Bim levels and elevated Cullin1 neddylation levels. Meantime, the inhibition of neddylation induced Bim-dependent apoptosis of DN T cells isolated from SLE patients. Altogether, our findings provide the direct evidence about the function of neddylation during lupus, suggesting a promising therapeutic approach for this disease.
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Affiliation(s)
- Yun Zhang
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Lijun Du
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Chenxi Wang
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhangsheng Jiang
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Qingchi Duan
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yiping Li
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhijun Xie
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhixing He
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yi Sun
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education) of the Second Affiliated Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
- Cancer Center of Zhejiang University, Hangzhou, 310029, China
| | - Lin Huang
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China.
- Chongqing International Institute for Immunology, Chongqing, 400038, China.
| | - Chengping Wen
- Key Laboratory of Chinese medicine rheumatology of Zhejiang Province, Research Institute of Chinese Medical Clinical Foundation and Immunology, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Du J, Chen X, Wang Y, Yang Z, Wu D, Zhang Q, Liu Y, Zhu X, Jiang S, Cao Y, Chen C, Du L, Zhou W, Lee SK, Xia H, Hei M. Regional variations in retinopathy of prematurity incidence for preterm infants <32 weeks' gestation in China. Public Health 2024; 226:91-98. [PMID: 38029699 DOI: 10.1016/j.puhe.2023.10.033] [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: 05/15/2023] [Revised: 09/30/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVES National-level data on the incidence of retinopathy of prematurity (ROP) in different regions of China is insufficient. This study aimed to compare ROP incidences and care practices in different regions of China and their relationship with regional gross domestic product (GDP) per capita. STUDY DESIGN Retrospective cohort study. METHODS All infants born at <32 weeks gestational age (GA) and admitted to 70 neonatal intensive care units (NICUs) from January 1, 2019, to December 31, 2020, were enrolled. Hospitals were categorised into three regional groups according to geographical locations and GDP per capita from high to low: Eastern, Central, and Western China. The incidence of death or ROP, and care practices were compared among the groups. RESULTS A total of 18,579 infants were enrolled. Median GA was 29.9 (interquartile range 28.4-31.0) weeks and birth weight was 1318.1 (317.2) g. The percentage of GA <28 weeks, complete administration of antenatal steroids, and weight gain velocity during NICU stay were highest in Eastern China and lowest in Western China (all P < 0.01). In Eastern, Central, and Western China, the rates of death or any stage of ROP were 33.3%, 38.5%, and 39.2%, respectively (P < 0.01). CONCLUSIONS There were considerable regional disparities in ROP incidence in preterm infants with GA <32 weeks in China. The incidence of death or ROP ranged from high to low in Western, Central, and Eastern China.
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Affiliation(s)
- J Du
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Chen
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Wang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Z Yang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - D Wu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Q Zhang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Y Liu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Zhu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - S Jiang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Y Cao
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - C Chen
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - L Du
- Neonatal Intensive Care Unit, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China; National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - W Zhou
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - S K Lee
- Maternal-Infant Care Research Centre and Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - H Xia
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Hei
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China.
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Gao H, Sun B, Li X, Bai T, Du L, Song Y, Zheng C, Kan X, Liu F. Risk factors for portal vein system thrombosis after partial splenic embolisation in cirrhotic patients with hypersplenism. Clin Radiol 2023; 78:919-927. [PMID: 37634989 DOI: 10.1016/j.crad.2023.07.022] [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: 03/28/2023] [Revised: 07/18/2023] [Accepted: 07/26/2023] [Indexed: 08/29/2023]
Abstract
AIM To determine risk factors for portal venous system thrombosis (PVST) after partial splenic artery embolisation (PSAE) in cirrhotic patients with hypersplenism. MATERIALS AND METHODS Between March 2014 and February 2022, 428 cirrhotic patients with hypersplenism underwent partial splenic artery embolisation and from these patients 208 were enrolled and 220 were excluded. Medical records of enrolled patients were collected. Computed tomography (CT) images were reviewed by two blinded, independent radiologists. Statistical analyses were performed by using SPSS. RESULTS Progressive PVST was observed in 18.75% (39/208) of cirrhotic patients after PSAE. No significant differences in peripheral blood counts, liver function biomarkers, and renal function were observed between the patients with progressive PVST and the patients without progressive PVST. The imaging data showed significant differences in PVST, the diameters of the portal, splenic, and superior mesenteric veins between the progressive PVST group and non-progressive PVST group. Univariate and multivariate analysis demonstrated portal vein thrombosis, spleen infarction percentage, and the diameter of the splenic vein were independent risk factors for progressive PVST. Seventeen of 173 (9.83%) patients showed new PVST; the growth of PVST was observed in 62.86% (22/35) of the patients with pre-existing PVST. Spleen infarction percentage and the diameter of the splenic vein were independent risk factors for new PVST after PSAE. CONCLUSION The present study demonstrated portal vein thrombosis, spleen infarction percentage, and the diameter of the splenic vein were independent risk factors for PVST after PSAE in cirrhotic patients with hypersplenism.
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Affiliation(s)
- H Gao
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - B Sun
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X Li
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - T Bai
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L Du
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y Song
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - C Zheng
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X Kan
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - F Liu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Wang C, Xu H, Liu G, Liu J, Yu H, Chen B, Zheng G, Shu M, Du L, Xu Z, Huang L, Li H, Shu S, Chen Y. A Multicenter Epidemiological and Pathogenic Characteristics Study of Community-Acquired Bacterial Meningitis Children in China: Results from the Chinese Pediatric Bacterial Meningitis Surveillance (CPBMS) 2019-2020. Infect Drug Resist 2023; 16:6587-6601. [PMID: 37849791 PMCID: PMC10577658 DOI: 10.2147/idr.s413147] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/25/2023] [Indexed: 10/19/2023] Open
Abstract
Objective To explore the epidemiological and pathogenic characteristics of children with community-acquired bacterial meningitis. Methods A multicenter, retrospective study was conducted among CABM patients under 15 years old from 33 hospitals in China from 2019 to 2020. The medical record, laboratory, and microbiological data were collected and analyzed. Results A total of 1610 children with CABM were identified and presented at a median onset age of 45 days of whom 955 (59.3%) were males. CABM occurred mostly in infants <1 year of age (84.0%, 1352/1610). In etiology-confirmed cases, the pathogens were isolated from CSF culture in 515 (32.0%), 400 (24.8%) in blood culture, and 186 (11.6%) both in CSF and blood culture. In total, 126 pathogens were identified through CSF mNGS in 330 CABM cases; 21 S. pneumoniae isolates were detected in 83 CABM cases by antigen detection method. Major pathogens were E. coli (195, 24.7%), GBS (170, 21.5%), and S. pneumoniae (157, 19.9%). GBS (29.3%, 22/75) was the first pathogen of CABM in neonates aged 0-6 days old, while E. coli (44.7%, 76/170) in 7 to 28 days of age; S. pneumoniae (96.2%, 151/157) was the most common pathogen in >3 months old cases. About 9.7% (19/195) strains of E. coli produced ultra‑broad‑spectrum β‑lactamases. The common intracranial imaging complications were subdural effusion and (or) empyema in 349 (21.7%), hydrocephalus in 233 (14.5%), and cerebral abscess in 178 (11.1%). A total of 389 (24.2%) cases were completely cured and 1088 (67.6%) cases improved. Among 166 patients (10.3%) with adverse outcomes, 32 cases (2.0%) died, and 37 cases (2.3%) relapsed. Conclusion The onset age of CABM in children is usually within 1 year of age, especially <3 months. The primary pathogens in infants less than 3 months old are E. coli and GBS, and the dominant pathogen in children older than 3 months old is S. pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. CABM should not be excluded even if CSF leukocyte counts are within normal range. Due to the low detection rate of pathogens in children with CABM, standardized CSF bacteriological examination should be paid more attention to increase the pathogen detection rate. Non‑culture CSF detection methods may facilitate pathogenic diagnosis.
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Affiliation(s)
- Caiyun Wang
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, People’s Republic of China
| | - Hongmei Xu
- Department of Infectious Disease, Children’s Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Gang Liu
- Department of Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, People’s Republic of China
- Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Jing Liu
- Department of Infectious Disease, Hunan Children’s Hospital, Changsha, Hunan, People’s Republic of China
| | - Hui Yu
- Department of Infectious Disease, The Children’s Hospital of Fudan University, Shanghai, People’s Republic of China
| | - Biquan Chen
- Department of Infection, Anhui Province Children’s Hospital, Hefei, Anhui, People’s Republic of China
| | - Guo Zheng
- Department of Neurology, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
| | - Min Shu
- Department of Pediatrics, West China Second University Hospital, Sichuan University/ West China Women’s and Children’s Hospital, Chengdu, Sichuang, People’s Republic of China
| | - Lijun Du
- Department of Neurology, Children’s Hospital of Shanxi, Taiyuan, Shanxi, People’s Republic of China
| | - Zhiwei Xu
- Pediatric Inpatient Ward, The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Lisu Huang
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, People’s Republic of China
- Department of Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Haibo Li
- Outpatient Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, People’s Republic of China
| | - Sainan Shu
- Department of Pediatric Infection and Gastroenterology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Yinghu Chen
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, People’s Republic of China
| | - On behalf of The CPBMS Study Group
- Department of Infectious Disease, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, Zhejiang, People’s Republic of China
- Department of Infectious Disease, Children’s Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
- Department of Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, People’s Republic of China
- Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Infectious Disease, Hunan Children’s Hospital, Changsha, Hunan, People’s Republic of China
- Department of Infectious Disease, The Children’s Hospital of Fudan University, Shanghai, People’s Republic of China
- Department of Infection, Anhui Province Children’s Hospital, Hefei, Anhui, People’s Republic of China
- Department of Neurology, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
- Department of Pediatrics, West China Second University Hospital, Sichuan University/ West China Women’s and Children’s Hospital, Chengdu, Sichuang, People’s Republic of China
- Department of Neurology, Children’s Hospital of Shanxi, Taiyuan, Shanxi, People’s Republic of China
- Pediatric Inpatient Ward, The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- Department of Infectious Disease, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- Outpatient Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, People’s Republic of China
- Department of Pediatric Infection and Gastroenterology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
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Du L, Nagle PW, van Luijk P, Plukker J, Muijs C, Coppes RP. Esophageal Cancer-Derived Organoids to Predict Patients' Treatment Response. Int J Radiat Oncol Biol Phys 2023; 117:e227. [PMID: 37784917 DOI: 10.1016/j.ijrobp.2023.06.1137] [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 absolute 10-year overall survival of esophageal adenocarcinoma (EAC) has significantly increased from 26% to 36% due to neoadjuvant chemoradiotherapy (nCRT) with consecutive radical resection. However, 20-25% of EAC patients don't respond to nCRT and need alternative treatment, and 20-30% have a complete pathological response and may not need resection. Therefore, there is an urgent need for better models to accurately predict response of EAC to nCRT. Accumulating evidence indicates that patient-derived organoids (PDOs) may predict treatment responses, but the ability of PDOs to predict responses to chemoradiation in EAC patients remains unknown. Hence, we generated patient derived EAC cancer organoids (ec-PDOs) to examine their response to nCRT. MATERIALS/METHODS The biopsies from treatment-naïve EAC patients after informed consent were used to establish ec-PDOs. Next, we investigated the response of ec-PDOs to the components of standard-of-care neoadjuvant treatment, including irradiation, carboplatin, and paclitaxel. Finally, the potential of ec-PDOs to reflect patients' response to nCRT before esophageal resection was evaluated. RESULTS Mechanically and enzymatically dispersed patient derived EAC biopsies were cultured as ec-PDOs for up to 10 passages, indicating the self-renewal and expansion potential. These ec-PDOs expressed the EAC marker MUC5AC, indicating the EAC origin. Differences in growth kinetics and response to irradiation, carboplatin, and paclitaxel were observed between patients specific ec-PDOs. However, similar dose-response curves were seen within ec-PDOs from the same patient after different passages. This indicates that ec-PDOs exhibit interpatient response heterogeneity but have good reproducible responses within the same patient. Moreover, after combined treatment with irradiation (IR), carboplatin (Car), and paclitaxel (Pac) to mimic nCRT in EAC patients, the stem cell survival of ec-PDOs from patients with complete response (CR) and partial response (PR) are lower than that from those with progressive disease (PD). CONCLUSION The preliminary findings in this study suggest a great potential of ec-PDOs to predict patient-specific responses to neoadjuvant treatment in EAC patients.
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Affiliation(s)
- L Du
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - P W Nagle
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Medical Research Council (MRC) Centre for Reproductive Health, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - P van Luijk
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J Plukker
- Department of Surgery, University Medical Center Groningen, The University of Groningen, Groningen, The Netherlands
| | - C Muijs
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - R P Coppes
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Du L, Lei Q, Zhou Q, Du Y, Lin X, Guo J, Li C, Luo Q, Fan C, Guo Q. Effect of MTA3 Inhibition of Glutamine Synthetase-Mediated Glutaminolysis on Radiosensitivity of Patients with Esophageal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e227-e228. [PMID: 37784918 DOI: 10.1016/j.ijrobp.2023.06.1138] [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) Metastasis-associated protein 3 (MTA3) can serve as a tumor suppressor in many cancer types. However, the role of MTA3 in radiosensitivity of patients with esophageal squamous cell cancer (ESCC) remains unclear. We thus investigated the function of MTA3 in radiosensitivity for ESCC, one of the most common digestive cancers. MATERIALS/METHODS The colony formation assay and nude mice xenograft tumor assay were performed to investigate the effect of MTA3 on radiosensitivity in ESCC. Glutamine consumption assay kit and glutamate production assay kit were used to assess the glutaminolysis. Glutaminase (GLS) Activity Assay Kit and Glutamine Synthetase (GS) Activity Assay Kit were used to analyze the activity of specific metabolic enzymes dominate glutaminolysis. The regulatory mechanism of glutaminolysis by MTA3 was confirmed using Chromatin immunoprecipitation assay and Gaussia luciferase assay. The expression levels of MTA3 and GS in ESCC primary tissues were evaluated using immunohistochemistry. Survival curves were plotted with the Kaplan-Meier method and compared by log-rank test. RESULTS The colony formation assay showed that MTA3 depletion and overexpression caused significantly higher and lower clonogenic survival after different doses of irradiation (IR), respectively. When these cells were subcutaneously injected into nude mice, the tumors derived from the cells with MTA3 overexpression and MTA3 knockdown were significantly smaller and bigger after IR, respectively. These findings suggest that MTA3 can enhance radiosensitivity in vitro and in vivo. Meanwhile, overexpressed and knockdown MTA3 can repress and expedite glutamine consumption and glutamate production uniformly, respectively. To determine how MTA3 acts on glutaminolysis, the activity of two specific metabolic enzymes dominate this metabolism, GS and GLS, were evaluated. It found that overexpressed and knockdown MTA3 can restrain and enhance the activity of GS, respectively, but have less effect on GLS. Moreover, the decreased radiosensitivity mediated by MTA3 knockdown is significantly increased when treated with GS inhibitor, suggesting that GS plays a crucial role in MTA3-mediated radiosensitivity enhancement. Mechanistically, Chromatin immunoprecipitation assay and Gaussia luciferase assay showed that MTA3 was recruited to the promoter of GS and suppressed GS transcription. However, knockdown of GATA3 abolished MTA3's repressive effect on GS and inhibited the MTA3's occupation on the promoter region of GS. These results collectively demonstrated that, in ESCC cells, MTA3 is recruited by GATA3 to inhibit GS expression, then ultimately represses glutaminolysis and enhances radiosensitivity. Finally, we showed that the ESCC patients in the MTA3low/GShigh group is significantly associated with shorter overall survival. CONCLUSION MTA3 is capable of enhancing radiosensitivity through downregulating GS and MTA3low/GShigh might be a potential prognostic factor for ESCC patients.
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Affiliation(s)
- L Du
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Lei
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Zhou
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Y Du
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - X Lin
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - J Guo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - C Li
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Luo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - C Fan
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Q Guo
- Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China
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Yuan Z, Lu X, Lei F, Sun H, Jiang J, Xing D, Du L. Novel Effect of p-Coumaric Acid on Hepatic Lipolysis: Inhibition of Hepatic Lipid-Droplets. Molecules 2023; 28:4641. [PMID: 37375195 DOI: 10.3390/molecules28124641] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
p-coumaric acid (p-CA), a common plant phenolic acid with multiple bioactivities, has a lipid-lowering effect. As a dietary polyphenol, its low toxicity, with the advantages of prophylactic and long-term administration, makes it a potential drug for prophylaxis and the treatment of nonalcoholic fatty liver disease (NAFLD). However, the mechanism by which it regulates lipid metabolism is still unclear. In this study, we studied the effect of p-CA on the down-regulation of accumulated lipids in vivo and in vitro. p-CA increased a number of lipase expressions, including hormone-sensitive lipase (HSL), monoacylglycerol lipase (MGL) and hepatic triglyceride lipase (HTGL), as well as the expression of genes related to fatty acid oxidation, including long-chain fatty acyl-CoA synthetase 1 (ACSL1), carnitine palmitoyltransferase-1 (CPT1), by activating peroxisome proliferator-activated receptor α, and γ (PPARα and γ). Furthermore, p-CA promoted adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) phosphorylation and enhanced the expression of the mammalian suppressor of Sec4 (MSS4), a critical protein that can inhibit lipid droplet growth. Thus, p-CA can decrease lipid accumulation and inhibit lipid droplet fusion, which are correlated with the enhancement of liver lipases and genes related to fatty acid oxidation as an activator of PPARs. Therefore, p-CA is capable of regulating lipid metabolism and is a potential therapeutic drug or health care product for hyperlipidemia and fatty liver.
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Affiliation(s)
- Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Xi Lu
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Fan Lei
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hong Sun
- Institute of Medicinal Plant and Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China
| | - Jingfei Jiang
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Dongming Xing
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lijun Du
- School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
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Liu L, Du L, He S, Sun T, Kong F, Liu Y, Xu Y. Subculturing and Gram staining of blood cultures flagged negative by the BACTEC™ FX system: Optimizing the workflow for detection of Cryptococcus neoformans in clinical specimens. Front Microbiol 2023; 14:1113817. [PMID: 37007533 PMCID: PMC10050354 DOI: 10.3389/fmicb.2023.1113817] [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: 12/01/2022] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
ObjectiveTo investigate whether an incubation time of 5 days (Aerobic/F, Anaerobic/F) and 14 days (Myco/F) blood culture bottles is sufficient to prevent false-negative results.MethodsWe evaluated 1,244 blood bottles (344 patients) defined as negative by the BACTEC™ FX system. We also reviewed published cases and our own cases of bloodstream infection caused by Cryptococcus neoformans and simulated different scenarios, including different inoculation concentrations, bottle types, and clinical isolates.ResultsTwo bottles (0.16%) were found to contain C. neoformans when subcultured and Gram stained. A 5-day protocol with Aerobic/F bottles was insufficient for the growth of C. neoformans in some cases, and C. neoformans grew better in Myco/F bottles than in Aerobic/F bottles.ConclusionSubculturing and Gram staining after a 5-day protocol were important for the detection of C. neoformans, and Myco/F bottles should be collected for the blood culture of C. neoformans.
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Affiliation(s)
- Lingli Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Lijun Du
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Department of Clinical Laboratory, Nanchong Central Hospital, the Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
- Jinan University, Guangzhou, Guangdong, China
| | - Shuquan He
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Department of Clinical Laboratory, Longhua District Central Hospital, Shenzhen, China
- Teaching Hospital of Guangdong Medical University, Guangdong, China
| | - Tianshu Sun
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Fanrong Kong
- Center for Infectious Diseases and Microbiology Laboratory Services, ICPMR—Pathology West, Westmead Hospital, University of Sydney, Westmead, NSW, Australia
| | - Yali Liu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Yali Liu,
| | - Yingchun Xu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
- Yingchun Xu,
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14
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Doyle P, Workman C, Grice J, Du L, Borgmann A, Baker J, Duncan D, Taylor J, Brown D. Abstract No. 122 Predictive Dosimetry and Outcomes of Hepatocellular Carcinoma Following Liver Resin Microsphere Radioembolization. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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15
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Zhang BQ, Du L, Xu N, Fan JP, Fan HW, Cao W, Huang CJ, Huang XM. [Anti-IFNγ autoantibody associated disseminated nonmycobacterial tuberculosis infection: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:316-319. [PMID: 36822859 DOI: 10.3760/cma.j.cn112138-20220310-00166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- B Q Zhang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - L Du
- Department of Cardiology, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences, Beijing 100730, China
| | - N Xu
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - J P Fan
- Department of Pulmonary Disease, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - H W Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Medical Academy of Sciences, Beijing 100730,China
| | - W Cao
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Medical Academy of Sciences, Beijing 100730,China
| | - C J Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
| | - X M Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital,Peking Union Medical College,Chinese Medical Academy of Sciences,Beijing 100730,China
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16
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Yang C, Peng X, Liu HY, Li XQ, Rao GC, Xie ZY, Yang QF, Du L, Xie CG. Modular characteristics and mechanism of action of herbs for vascular calcification treatment in Chinese medicine: a data mining and network pharmacology-based identification. Eur Rev Med Pharmacol Sci 2023; 27:1774-1792. [PMID: 36930472 DOI: 10.26355/eurrev_202303_31539] [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: 03/18/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the modular characteristics and mechanism of action of Chinese herbs for vascular calcification (VC) treatment. MATERIALS AND METHODS Network pharmacology coupled with literature data mining was utilized to assess the Chinese herbal clinical performance as well as its similarity, characteristics, ingredient, target, and Gene Ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment, and network construction. RESULTS The top 15 medications from the literature, according to the usage, and 190 active chemicals, 183 common targets between medication and VC-related targets were weeded out. Analysis of the relationships between the active ingredients, pharmacological targets, and signaling pathways helped to clearly define the therapeutic effect of Traditional Chinese Medicine (TCM). Importantly, we discovered seven most hub proteins (AKT1, CTNNB1, TNF, EGFR, TP53, JUN and IL-6) and two of the herbs' most fundamental ingredients (Formononetin and Luteolin) in TCM-mediated VC suppression. Mechanistically, the metabolic pathways [AGE-RAGE pathway, interleukin-17 (IL-17) pathway, and p53 pathway] as well as smooth muscle adaptation (functional remodeling) and oxidoreductase activity (redox homeostasis modulating) are also crucially implicated. CONCLUSIONS Our work, accomplished by network pharmacology and data mining, increases our understanding of TCM in VC therapy and may offer insightful information for future drug discovery investigations.
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Affiliation(s)
- C Yang
- Division of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China.
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17
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Hund H, Du L, Matsuoka L, Sze D, Kennedy A, Vaheesan K, Petroziello M, Golzarian J, Wang E, Ghandi R, Collins Z, Brower J, Lee J, Brown D. Abstract No. 79 Comparison of 90Y Radioembolization Outcomes for Hepatocellular Carcinoma (HCC) in TACE-Refractory (T-REF) vs Treatment Naïve (TN) Patients in the RESiN Registry (NCT: 02685631). J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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18
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Gong Q, Yin J, Wang M, Zha C, Yu D, Yang S, Feng Y, Li J, Du L. Anemoside B4 Exerts Hypoglycemic Effect by Regulating the Expression of GLUT4 in HFD/STZ Rats. Molecules 2023; 28:molecules28030968. [PMID: 36770636 PMCID: PMC9921942 DOI: 10.3390/molecules28030968] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Anemoside B4 (B4) is a saponin that is extracted from Pulsatilla chinensis (Bge.), and Regel exhibited anti-inflammatory, antioxidant, antiviral, and immunomodulatory activities. However, its hypoglycemic activity in diabetes mellitus has not been evaluated. Here, we explored the effect of B4 on hyperglycemia and studied its underlying mechanism of lowering blood glucose based on hyperglycemic rats in vivo and L6 skeletal muscle cells (L6) in vitro. The rats were fed a high-fat diet (HFD) for one month, combined with an intraperitoneal injection of 60 mg/kg streptozotocin (STZ) to construct the animal model, and the drug was administrated for two weeks. Blood glucose was detected and the proteins and mRNA were expressed. Our study showed that B4 significantly diminished fasting blood glucose (FBG) and improved glucose metabolism. In addition, B4 facilitated glucose utilization in L6 cells. B4 could enhance the expression of glucose transporter 4 (GLUT4) in rat skeletal muscle and L6 cells. Mechanistically, B4 elevated the inhibition of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signaling pathways. Furthermore, we confirmed the effect of B4 on glucose uptake involved in the enhancement of GLUT4 expression in part due to PI3K/AKT signaling by using a small molecule inhibitor assay and constructing a GLUT4 promoter plasmid. Taken together, our study found that B4 ameliorates hyperglycemia through the PI3K/AKT pathway and promotes GLUT4 initiation, showing a new perspective of B4 as a potential agent against diabetes.
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Affiliation(s)
- Qin Gong
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
| | - Jilei Yin
- Institute of Traditional Chinese Medicine, Jiangsu Union Technical Institute Lianyungang Branch, Lianyungang 222007, China
| | - Mulan Wang
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
| | - Chengliang Zha
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
| | - Dong Yu
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
| | - Shilin Yang
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
| | - Yulin Feng
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
| | - Jun Li
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
- Correspondence: (J.L.); (L.D.); Tel.:+86-180-7009-0101 (J.L.); +791-8711-9785 (L.D.)
| | - Lijun Du
- School of pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330006, China
- National Engineering Research Center for Manufacturing Technology of Solid Preparation, Nanchang 330006, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
- Correspondence: (J.L.); (L.D.); Tel.:+86-180-7009-0101 (J.L.); +791-8711-9785 (L.D.)
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19
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Du L, Dou K, Zhang D, Xia H, Liang N, Wang N, Sun J, Bai R. MiR-19a-3p Promotes Aerobic Glycolysis in Ovarian Cancer Cells via IGFBP3/PI3K/AKT Pathway. Folia Biol (Praha) 2023; 69:163-172. [PMID: 38583177 DOI: 10.14712/fb2023069050163] [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: 04/09/2024]
Abstract
Aerobic glycolysis is a prominent feature of cancer. Here, we reported that miR-19a-3p promotes aerobic glycolysis in ovarian cancer cells SKVO3 and ES-2 by increased production of ATP, lactic acid, extracellular acidification (ECAR), and increased expression of PKM2, LDHA, GLUT1 and GLUT3. Further study showed that over-expression of IGFBP3, the target of miR-19a-3p, decreases aerobic glycolysis in ovarian cancer cells, while knockdown of IGFBP3 expression increases aerobic glycolysis. The rescue assay suggested that miR-19a-3p promotes aerobic glycolysis in ovarian cancer cells through targeting IGFBP3. Moreover, over-expression of miR-19a-3p or silencing of IGFBP3 expression promoted activation of AKT, which is important for aerobic glycolysis in cancer cells, indicating that miR-19a-3p promotes aerobic glycolysis in ovarian cancer cells through the IGFBP3/PI3K/AKT pathway. This suggests that miR-19a-3p and IGFBP3 may serve as potential treatment targets of ovarian cancer.
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Affiliation(s)
- Lijun Du
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Kaikai Dou
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Dan Zhang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Huidong Xia
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Nianhai Liang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Ningping Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Jianmin Sun
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Ru Bai
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China.
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20
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Chen X, Chen X, Chen B, Du L, Wang Y, Huang Z, Dai N, Chen JDZ, Cao Q. Electroacupuncture Enhances Gastric Accommodation via the Autonomic and Cytokine Mechanisms in Functional Dyspepsia. Dig Dis Sci 2023; 68:98-105. [PMID: 35503488 DOI: 10.1007/s10620-022-07495-8] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/22/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Due to complex pathophysiology of functional dyspepsia, medications to treat functional dyspepsia are not effective for all patients. Transcutaneous electrical acustimulation (TEA) is an potentially effective therapy for functional dyspepsia without proofs of definite mechanisms. AIMS We aimed to investigate the therapeutic impacts of TEA on postprandial distress syndrome (PDS) and explore potential neuroimmune mechanisms. METHODS We conducted a double-blinded, randomized, controlled trial in 30 PDS patients randomized for 4-week TEA or sham-TEA. Dyspeptic symptoms, gastric accommodation, gastric emptying and heart rate variability (HRV) were assessed. Duodenal mucosal inflammation was also evaluated. RESULTS The dyspeptic symptoms were improved with TEA compared with sham-TEA (P = 0.03). The initial satiety volume and the maximum tolerable volume (MTV) were both improved after the TEA treatment, compared with the sham-TEA group (P all < 0.05). The gastric emptying time (T1/2) was not altered with TEA or sham-TEA. The TEA treatment increased vagal activity and decreased sympathovagal ratio assessed by HRV (P all < 0.01). The IL-6 expression in bulb mucosa was downregulated by the TEA treatment compared to the baseline (P < 0.05). CONCLUSIONS Noninvasive TEA improves gastric accommodation and dyspeptic symptoms, possibly by downregulating the IL-6 expression in duodenal bulb mucosa via the vagal efferent pathway.
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Affiliation(s)
- Xiaoli Chen
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xin Chen
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Binrui Chen
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lijun Du
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yu Wang
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhihui Huang
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ning Dai
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiande D Z Chen
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
| | - Qian Cao
- Division of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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21
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Du L, Lv N, Li J, Zhang J, Chen Y, Zhang Y, Li Z, Huang X, Luo J. NiCoSe4@CFF with excellent properties prepared by microwave method for flexible supercapacitors and oxygen evolution reaction. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2022.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Cheng F, Fan Z, Lin C, Zhu Y, He H, Dai N, Du L. Effect of altered gut microbiota on visceral hypersensitivity of postinfectious irritable bowel syndrome mice. Eur J Gastroenterol Hepatol 2022; 34:1220-1230. [PMID: 36165068 DOI: 10.1097/meg.0000000000002441] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Irritable bowel syndrome (IBS) is a common functional bowel disorder characterized with visceral hypersensitivity. Previous studies indicated gut microbiota alteration associated short-chain fatty acids (SCFAs) dysregulation is associated with IBS development. The aim of the study is to explore the potential role of microbiota dysbiosis mediated visceral hypersensitivity in postinfectious-IBS (PI-IBS) mouse model. METHODS Four-week-old NIH mice were randomly allocated into four groups: control mice, PI-IBS mice, PI-IBS mice co-housing with normal mice, and PI-IBS mice were administrated with a cocktail of antibiotics. Trichinella spiralis infection established PI-IBS mouse model. Microbiota in cecal contents and feces were analyzed by 16S rDNA sequencing. SCFAs were detected by gas chromatography. 5-hydroxytryptamine (5-HT) was evaluated by ELISA, and N-methyl-D-aspartate receptors (NMDARs) were examined by western blot. Visceral sensitivity was determined by abdominal withdrawal reflex in response to colorectal distention. RESULTS Increased SCFAs were observed in cecal contents and feces in PI-IBS mice accompanied with higher 5-HT and NMDAR subunits expressions in ileum and colon. Visceral hypersensitivity was observed in PI-IBS mice compared to control mice. When administrated with antibiotics cocktails and co-housing with normal mice, PI-IBS mice showed decreased SCFAs, 5-HT, NMDAR subunits expressions, and improved visceral hypersensitivity. CONCLUSION Gut microbiota alteration induced increased SCFAs, 5-HT and NMDAR subunits expressions were associated with visceral hypersensitivity in PI-IBS mice. The critical role of gut microbiota in improving visceral hypersensitivity was further identified by treatment of antibiotics cocktail and co-housing.
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Affiliation(s)
- Fangli Cheng
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
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23
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Du L, Feng Y, Wang C, Shi X, Wen C, He Z, Zhang Y. Jieduquyuziyin prescription promotes the efficacy of prednisone via upregulating Nrf2 in MRL/lpr kidneys. J Ethnopharmacol 2022; 298:115643. [PMID: 36031105 DOI: 10.1016/j.jep.2022.115643] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 05/18/2022] [Revised: 07/13/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Jieduquyuziyin prescription (JP), a traditional Chinese medicine (TCM) formula, has been used as an approved hospital prescription to improve the efficacy of prednisone (Pred) in systemic lupus erythematosus (SLE) and lupus nephritis (LN) treatment. Although the synergistic effect of JP and Pred is prominent, the underlying mechanisms require further investigation. AIM OF THE STUDY To explore the key therapeutic targets of JP in improving the role of Pred in the treatment of LN. MATERIALS AND METHODS Lupus-prone female MRL/lpr mice were administered JP, Pred, or JP combined with Pred. The effect of JP on LN was estimated by evaluating renal function and inflammation levels in the kidneys. On this basis, RNA sequencing of kidney tissues was performed, and the differentially expressed genes were analyzed and summarized. The role of JP in the expression of nuclear factor erythroid 2-related factor 2 (NFE2L2 or Nrf2) in the kidneys was further confirmed by real-time PCR, immunohistochemistry, and western blotting. RESULTS JP combined with Pred exhibited the most remarkable therapeutic effect compared with JP or Pred alone. Transcriptome analysis indicated that Nrf2, a central mediator of the antioxidative response, was significantly upregulated by JP. Based on these results, we speculated that Nrf2 is a critical factor for JP, improving the efficacy of Pred in treating LN by notably suppressing the oxidative stress level in the kidneys. Furthermore, we found that Nrf2 expression decreased with the exacerbation of LN in MRL/lpr mice. In addition, the downregulated Nrf2 was notably restored after JP treatment, accompanied by suppressed oxidative stress levels in the kidneys. It includes inhibited accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA), restored mitochondrial membrane potential (MMP) levels, and increased antioxidant enzyme activity of superoxide dismutase (SOD). CONCLUSIONS Our findings show that JP increases Pred efficacy by increasing Nrf2 expression, implying that Nrf2 may be a promising therapeutic target for the treatment of LN.
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Affiliation(s)
- Lijun Du
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Yuxiang Feng
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Chenxi Wang
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Xiaowei Shi
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Chengping Wen
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Zhixing He
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Yun Zhang
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science,Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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24
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Du L, Chen B, Cheng F, Kim J, Kim JJ. Effects of Helicobacter pylori Therapy on Gut Microbiota: A Systematic Review and Meta-Analysis. Dig Dis 2022; 42:102-112. [PMID: 36228588 DOI: 10.1159/000527047] [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: 12/11/2021] [Accepted: 09/04/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Although indications for evaluation and treatment of Helicobacter pylori infection are broadening to include primary prevention for gastric adenocarcinoma, potential adverse effects on gut microbiota have been raised. We performed a systematic review and meta-analysis to evaluate the effects of H. pylori therapy on gut microbiota. METHODS PubMed, EMBASE, Cochrane Library, and Web of Science (to 4/2021) were searched for studies quantitatively evaluating microbiota before and after H. pylori therapy. Meta-analysis was performed to assess early (<1 year) and long-term (≥1 year) effects on gut microbiota after H. pylori treatment. Subgroup analysis evaluating the effects of H. pylori therapy with addition of probiotics on gut microbiota was also performed. RESULTS Thirty studies (N = 1,218) met the criteria. Early after H. pylori therapy, intestinal microbial diversity was reduced in nearly all studies. At the genus level, reduction in the abundance of Enterococcus, while increase in Lactobacillus, Bifidobacterium, and Bacteroides counts were observed. However, Enterococcus, Lactobacillus, Bifidobacterium, and Bacteroides counts remained stable in patients who received probiotics with H. pylori therapy. At the phylum level, the relative abundance of Actinobacteria and Firmicutes increased after treatment. At ≥1 year, intestinal microbial diversity normalized in six of seven studies. No differences in the relative abundance of Actinobacteria, Firmicute, Bacteroidetes, and Proteobacteria were observed ≥1 year after therapy. CONCLUSION The impact of H. pylori therapy on gut microbiota appears transient with early changes largely resolving after 1 year. Probiotics may reduce the early impact of H. pylori therapy on gut microbiota.
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Affiliation(s)
- Lijun Du
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China,
| | - Binrui Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fangli Cheng
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jeffrey Kim
- Department of Family Medicine, Loma Linda University Health, Loma Linda, California, USA
| | - John J Kim
- Division of Gastroenterology, Loma Linda University Health, Loma Linda, California, USA
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25
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Luo NX, Jiang SY, Cao SJ, Li JY, Han Q, Zhou MM, Li JZ, Guo GY, Liu ZM, Yang C, Ji BQ, Zhang ZF, Huang J, Yuan DD, Pan JY, Shi XF, Hu S, Lin Q, Zhao CG, Yan Y, Wang QF, Wei Q, Kan JQ, Gao CQ, Liu SY, Jiang XG, Liu HQ, Sun J, Du L, He L. [Outcomes at discharge of preterm infants born <34 weeks' gestation]. Zhonghua Er Ke Za Zhi 2022; 60:774-780. [PMID: 35922187 DOI: 10.3760/cma.j.cn112140-20220103-00002] [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: 06/15/2023]
Abstract
Objective: To investigate the incidence and trend of short-term outcomes among preterm infants born <34 weeks' gestation. Methods: A secondary analysis of data from the standardized database established by a multicenter cluster-randomized controlled study "reduction of infection in neonatal intensive care units (NICU) using the evidence-based practice for improving quality (REIN-EPIQ) study". This study was conducted in 25 tertiary NICU. A total of 27 192 infants with gestational age <34 weeks at birth and admitted to NICU within the first 7 days of life from May 2015 to April 2018 were enrolled. Infants with severe congenital malformation were excluded. Descriptive analyses were used to describe the mortality and major morbidities of preterm infants by gestational age groups and different admission year groups. Cochran-Armitage test and Jonckheere-Terpstra test were used to analyze the trend of incidences of mortality and morbidities in 3 study-years. Multiple Logistic regression model was constructed to analyze the differences of outcomes in 3 study-years adjusting for confounders. Results: A total of 27 192 preterm infants were enrolled with gestational age of (31.3±2.0) weeks at birth and weight of (1 617±415) g at birth. Overall, 9.5% (2 594/27 192) of infants were discharged against medical advice, and the overall mortality rate was 10.7% (2 907/27 192). Mortality for infants who received complete care was 4.7% (1 147/24 598), and mortality or any major morbidity was 26.2% (6 452/24 598). The incidences of moderate to severe bronchopulmonary dysplasia, sepsis, severe intraventricular hemorrhage or periventricular leukomalacia, proven necrotizing enterocolitis, and severe retinopathy of prematurity were 16.0% (4 342/27 192), 11.9% (3 225/27 192), 6.8% (1 641/24 206), 3.6% (939/25 762) and 1.5% (214/13 868), respectively. There was a decreasing of the overall mortality (P<0.001) during the 3 years. Also, the incidences for sepsis and severe retinopathy of prematurity both decreased (both P<0.001). However, there were no significant differences in the major morbidity in preterm infants who received complete care during the 3-year study period (P=0.230). After adjusting for confounders, infants admitted during the third study year showed significantly lower risk of overall mortality (adjust OR=0.62, 95%CI 0.55-0.69, P<0.001), mortality or major morbidity, moderate to severe bronchopulmonary dysplasia, sepsis and severe retinopathy of prematurity, compared to those admitted in the first study year (all P<0.05). Conclusions: From 2015 to 2018, the mortality and major morbidities among preterm infants in Chinese NICU decreased, but there is still space for further efforts. Further targeted quality improvement is needed to improve the overall outcome of preterm infants.
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Affiliation(s)
- N X Luo
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S Y Jiang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S J Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Y Li
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q Han
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M M Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Z Li
- Department of Neonatology, Women's Hospital of Nanjing Medical University, Nanjing 210004, China
| | - G Y Guo
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 200001, China
| | - Z M Liu
- Department of Neonatology, Maternal and Child Hospital of Hubei Province, Wuhan 430064, China
| | - C Yang
- Department of Neonatology, Suzhou Municipal Hospital, Suzhou 215008, China
| | - B Q Ji
- Department of Neonatology, Shanxi Children's Hospital, Taiyuan 030006, China
| | - Z F Zhang
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Fuzhou 350005, China
| | - J Huang
- Department of Neonatology, the Affiliated Shenzhen Maternity and Child Healthcare Hospital of Southern Medical University, Shenzhen 518047, China
| | - D D Yuan
- Department of Neonatology, Qingdao Women and Children's Hospital of Southern Medical University, Qingdao 266011, China
| | - J Y Pan
- Department of Neonatology, Guiyang Maternal and Child Health Care Hospital, Guiyong Children's Hospital, Guiyang 550002, China
| | - X F Shi
- Department of Neonatology, Gansu Provincial Maternal and Child-care Hospital, Lanzhou 730050, China
| | - S Hu
- Department of Neonatology, Shanghai First Maternal and Infant Hospital, Shanghai 201204, China
| | - Q Lin
- Department of Neonatology, the 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325088, China
| | - C G Zhao
- Department of Neonatology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Y Yan
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Q F Wang
- Department of Neonatology, the First Affiliated Hospital of Xinjiang Medical University, Urumchi 830054, China
| | - Q Wei
- Department of Neonatology, Maternity and Child Health Care of Guangxi Zhuang Autonomous Region, Nanning 530002, China
| | - J Q Kan
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - C Q Gao
- Department of Neonatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - S Y Liu
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - X G Jiang
- Department of Neonatology, Wuxi Maternal and Child Health Care Hospital, Wuxi 214002, China
| | - H Q Liu
- Department of Neonatology, Children's Hospital Affiliated to Shandong University, Jinan 250022, China
| | - J Sun
- Division of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Jinan Children's Hospital, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - L Du
- Department of Neonatology, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Li He
- Department of Neonatology, the Third Xiangya Hospital of Central South University, Changsha 410013, China
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Wang F, Zhao Y, Hu X, Ye R, Du L, Li Z, Wang S. 738 Genome-wide association study of the nasolabial fold identified novel variants associated with facial morphology. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wang F, Li Z, Hu X, Ye R, Du L, Wang S. 737 Deep learning methods identify eyelid laxity as the main feature causing the aging look. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang F, Qi Q, Li Z, Hu X, Ye R, Du L, Wang S. 647 Genome-wide scans identified genetic variants associated with facial aging traits quantified by deep learning methods. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ye R, Hong M, Wang Q, Xie Y, Du L. 594 The synergistic effect of retinyl propionate and hydroxypinacolone retinoate on skin early aging. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Li R, Hu Y, Du L, Li J, Yuan J, Liu X. In-situ photoelectrocatalytical formation of sulfate radicals on BiPO4 modified carbon paper electrode in sodium sulfate electrolyte for high efficient degradation of pefloxacin. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Goswami P, Adeniran O, Frantz S, Matsuoka L, Du L, Gandhi R, Collins Z, Matrana M, Petroziello M, Brower J, Sze D, Kennedy A, Golzarian J, Wang E, Brown D. Abstract No. 196 Overall survival and toxicities of advanced hepatocellular carcinoma (HCC) Barcelona clinic liver cancer C (BCLC-C) patients following Y-90 radioembolization: assessment from the RESiN Registry (NCT: 02685631). J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Yang N, Zhao W, Pan Y, Lyu XZ, Hao XY, Qi WA, Du L, Liu EM, Chen T, Zhang WS, Zhang CF, Zhu GN, Wang QM, Meng WB, Liang YB, Jin YH, Wang W, Xing D, Tian JH, Ma B, Wang XH, Song XP, Ge L, Yang KH, Liu XQ, Wei JM, Chen Y. [Development of a Ranking Tool for Scientificity, Transparency and Applicability of Clinical Practice Guidelines]. Zhonghua Yi Xue Za Zhi 2022; 102:1-10. [PMID: 35701091 DOI: 10.3760/cma.j.cn112137-20220219-00340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To address the limitations of existing methods and tools for evaluating clinical practice guidelines, we aimed to develop a comprehensive instrument focusing on the three main dimensions of guideline development: scientificity, transparency, applicability. We will use it to rank the guidelines according to the scores. We abbreviated it as STAR, and its reliability, validity and usability were also tested. Methods: A multidisciplinary expert working group was set up, including methodologists, statisticians, journal editors, medical professionals, and others. Scoping review, Delphi methods and hierarchical analysis were used to determine the final checklist of STAR. Results: The new instrument contained 11 domains and 39 items. Intrinsic reliability of each domain was indicated by Cronbach's α coefficient, with a average value of 0.646. The Cohen's kappa coefficients for methodological evaluators and clinical evaluators were 0.783 and 0.618. The overall content validity index was 0.905. The R2 for the criterion validity analysis was 0.76. The average score for usability of the items was 4.6, and the mean time spent to evaluate each guideline was 20 minutes. Conclusion: The instrument has good reliability, validity and evaluating efficiency, and can be used for evaluating and ranking guidelines more comprehensively.
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Affiliation(s)
- N Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - W Zhao
- General Editorial Office, Chinese Medical Association Publishing House, Beijing 100052, China
| | - Y Pan
- Marketing and Sales Department, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Z Lyu
- Editorial Department, Chinese Medical Journal, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Y Hao
- Editorial Department, Chinese Medical Journal (English Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - W A Qi
- Editorial Department, British Medical Journal (Chinese Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - L Du
- Evidence-Based Medicine Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041
| | - E M Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014
| | - T Chen
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - W S Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C F Zhang
- Children's Hospital of Fudan University, Shanghai 201102, China
| | - G N Zhu
- Department of Dermatology, Xijing Hospital, Xi'an 710032, China
| | - Q M Wang
- Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W B Meng
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y B Liang
- Department of Ophthalmology, The Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Jin
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - W Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, China
| | - D Xing
- Department of Trauma and Orthopaedics, Peking University People's Hospital, Beijing 100044, China
| | - J H Tian
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - B Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X H Wang
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - X P Song
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - L Ge
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - K H Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X Q Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union & Peking Union Medical College, Beijing 100730
| | - J M Wei
- Chinese Medical Association Publishing House, Beijing 100052, China
| | - Yaolong Chen
- Research Unit of Evidence-Based Evaluation and Guidelines (2021RU017), Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China Guidelines and Standards Research Center, Chinese Medical Association Publishing House, Beijing 100052, China
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Xu GM, Wang M, Bao HL, Fang PF, Zeng YH, Du L, Wang XL. Design of Ni(OH)2/M-MMT Nanocomposite With Higher Charge Transport as a High Capacity Supercapacitor. Front Chem 2022; 10:916860. [PMID: 35711949 PMCID: PMC9197183 DOI: 10.3389/fchem.2022.916860] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 04/27/2022] [Indexed: 11/13/2022] Open
Abstract
Nano-petal nickel hydroxide was prepared on multilayered modified montmorillonite (M-MMT) using one-step hydrothermal method for the first time. This nano-petal multilayered nanostructure dominated the ion diffusion path to be shorted and the higher charge transport ability, which caused the higher specific capacitance. The results showed that in the three-electrode system, the specific capacitance of the nanocomposite with 4% M-MMT reached 1068 F/g at 1 A/g and the capacity retention rate was 70.2% after 1,000 cycles at 10 A/g, which was much higher than that of pure Ni(OH)2 (824 F/g at 1 A/g), indicating that the Ni(OH)2/M-MMT nanocomposite would be a new type of environmentally friendly energy storage supercapacitor.
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Affiliation(s)
- G. M. Xu
- School of Mechanical Engineering, Liaoning Technical University, Fuxin, China
| | - M. Wang
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
- Key Laboratory of Mineral High Value Conversion and Energy Storage Materials of Liaoning Province, Fuxin, China
- *Correspondence: M. Wang,
| | - H. L. Bao
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
| | - P. F. Fang
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
| | - Y. H. Zeng
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
| | - L. Du
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
| | - X. L. Wang
- School of Materials Science and Engineering, Liaoning Technical University, Fuxin, China
- Key Laboratory of Mineral High Value Conversion and Energy Storage Materials of Liaoning Province, Fuxin, China
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Zhang X, Hong F, Liu L, Nie F, Du L, Guan H, Wang Z, Zeng Q, Yang J, Wang J, Li X, Zhang J, Luo P. Lipid accumulation product is a reliable indicator for identifying metabolic syndrome: the China Multi-Ethnic Cohort (CMEC) Study. QJM 2022; 115:140-147. [PMID: 33367838 DOI: 10.1093/qjmed/hcaa325] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/13/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Previous studies have shown that lipid accumulation product (LAP) was associated with the risk of cardiometabolic disease. It is not clear whether LAP could be used as a marker to identify metabolic syndrome (MetS) among Chinese ethnic groups. AIM To assess the reliability of LAP as a maker to identify MetS among Dong adults. DESIGN Population-based cross-sectional study. METHOD We included 6494 Dong individuals (1403 patients) aged 30-79 years from southwest China. MetS was established by Chinese Diabetes Society. Logistic regression model was utilized to calculate odds ratios (ORs) and 95% confidence intervals (CIs). Receiver operating characteristic (ROC) curve was utilized to calculate area under the ROC curve (AUC) and 95% CIs to obtain the identification ability for MetS. RESULTS The risk of MetS was increased with per 5 units increase of LAP (OR 1.37 [95% CI, 1.34-1.39]). Similar results were found in subgroup analyses and sensitivity analyses. Clustered metabolic risk associated with per 5 units increase of LAP was observed for people with 1 (OR 1.59 [95% CI, 1.53-1.65]), 2 (2.15 [2.06-2.24]), 3 (2.59 [2.48-2.71]), 4 (2.81 [2.69-2.95]) and 5 (3.03 [2.87-3.21]) MetS components. LAP presented higher AUC (0.915 [95% CI, 0.907-0.923]) than other included obesity indices (P < 0.05). CONCLUSION These data support evidence that LAP was related to the risk of MetS, had a high AUC and could be a reliable index for identifying MetS patients among Dong adults in Chinese.
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Affiliation(s)
- X Zhang
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - F Hong
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - L Liu
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - F Nie
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - L Du
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - H Guan
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - Z Wang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - Q Zeng
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Yang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Wang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - X Li
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
| | - J Zhang
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- Health Bureau of Yunyan District, Beijing East Road, Guiyang 550003, People's Republic of China
| | - P Luo
- School of Public Health, Guizhou Medical University, Dongqing Road, Guiyang, 550025, People's Republic of China
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guiyang 550025, People's Republic of China
- State Key Laboratory of Function and Application of Medicinal Plants, Guizhou Medical University, Dongqing Road, Guiyang 550014, People's Republic of China
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Zhao Q, Zhang B, Li Z, Tang W, Du L, Sang H. Effects of IncRNA PROX1-AS1 on Proliferation, Migration, Invasion and Apoptosis of Lung Cancer Cells by Regulating MiR-1305. J Healthc Eng 2022; 2022:9570900. [PMID: 35281529 PMCID: PMC8906948 DOI: 10.1155/2022/9570900] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/23/2022] [Accepted: 01/28/2022] [Indexed: 11/17/2022]
Abstract
This paper aims to explore the lncRNA PROX1-AS1 effect on proliferation, migration, invasion, and apoptosis of lung cancer cells together with its targeted regulation on miR-1305. To adopt qRT-PCR to test PROX1-AS1 and miR-1305 expression levels in lung cancer tissues and adjacent tissues. Lung cancer cells A549 were cultured in vitro and randomly divided into several groups, which are si-NC, si-PROX1-AS1, miR-NC, miR-1305, si-PROX1-AS1 plus anti-miR-NC, and si-PROX1-AS1 plus anti-miR-1305. To adopt the CCK-8 method to test cell proliferation and to adopt the Transwell chamber experiment to test cell migration and invasion. To adopt the flow cytometry method to test the apoptosis rate. Through a dual luciferase experiment, we decided to find out the targeting relationship between PROX1-AS1 and miR-1305. Then we adopted the western blot method to test CyclinD1, MMP-2, MMP-9, Bcl-2, p21, and Bax expression levels. Compared with adjacent tissues (P < 0.05), the expression of PROX1-AS1 in lung cancer tissue was remarkably higher, while the expression of miR-1305 was remarkably lower (P < 0.05). After PROX1-AS1 knockdown expression or miR-1305 overexpression, cell activity, migration, and invasion ability were outstandingly lowered (P < 0.05), but the apoptosis rate was obviously raised (P < 0.05), CyclinD1, MMP-2, Bcl-2, and MMP-9 protein data were remarkably reduced (P < 0.05), but p21 and Bax protein conditions were outstandingly enhanced (P < 0.05). The dual luciferase experiment confirmed that PROX1-AS1 had a targeting relationship with miR-1305. After cotransfection with si-PROX1-AS1 and anti-miR-1305, the cell viability, migration and invasion ability were remarkably enhanced (P < 0.05), the apoptosis rate was remarkably reduced (P < 0.05), CyclinD1, MMP-2, Bcl-2, and MMP-9 protein were increased remarkably (P < 0.05), and p21 or Bax protein was lowered remarkably (P < 0.05). On the one hand, PROX1-AS1 can promote lung cancer proliferation, migration, and invasion. On the other hand, it may restrain apoptosis, possibly through inhibiting miR-1305 expression.
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Affiliation(s)
- Quanneng Zhao
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
| | - Bing Zhang
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
| | - Zhilian Li
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
| | - Wei Tang
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
| | - Lijun Du
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
| | - Hongyang Sang
- Department of Medical Laboratory, Nanchong Central Hospital, Nanchong 637000, China
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Albino L, Rosentreter R, Lu C, Siffledeen J, Dieleman LA, Ma C, Baugmart DC, Du L, Halloran B, Kroeker K, Peerani F, Wong K. A146 THE EFFECTIVENESS OF USTEKINUMAB DOSE ESCALATION IN PATIENTS WITH ULCERATIVE COLITIS. J Can Assoc Gastroenterol 2022. [PMCID: PMC8859317 DOI: 10.1093/jcag/gwab049.145] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Ustekinumab (UST), an IgG1 antibody that targets IL-12/23, is an effective and safe treatment option for patients with inflammatory bowel disease (IBD). Cohort studies have shown that dose escalation is an effective strategy for reinducing and maintaining remission in Crohn’s disease patients who do not respond or lose response to standard dosing of UST. There are currently no published studies evaluating effectiveness of UST dose escalation in ulcerative colitis (UC) patients. Aims To assess the effectiveness of UST dose escalation in patients with moderate-to-severe UC who have not responded to or lost responsiveness to standard maintenance dosing (90mg SC every 8 weeks). Methods A retrospective cohort study was conducted at three centers. Consecutive patients with moderate-to-severe UC initiated on ustekinumab were enrolled. Results Data on 43 patients (26 males) are reported (to date, patients from 1 of 3 centres have been reviewed). Mean age was 40.2 years (±15.6). Mean duration of disease was 8.5 years (±5.8). Mean duration of follow up while on UST was 8.8 months (±7.2). In total, 28% (12) of patients underwent dose escalation: 8% (1) by way of IV reinduction, 58% (7) through interval shortening (every 4 weeks), and 33% (4) by both interval shortening and IV reinduction. Mean time to first dose escalation was 6.2 months (±4.1). Mean time to second dose escalation was 5.1 months (±1.2). Seven percent (3) of patients discontinued UST, with the mean timeframe being 5.3 months (±2.9). Three patients discontinued UST due to primary non-response with one proceeding onto surgery. Time to normalization of CRP and FCP after initiation of UST is shown in Table 1. Conclusions Preliminary data demonstrates that 28% of patients in this cohort required UST dose escalation, with 33% requiring a second dose escalation. Only 7% of patients discontinued UST at 9 months of follow up. Longer term follow up of this cohort would determine if dose escalation is an effective strategy to extend durability of ustekinumab. Table 1. Normalization of CRP and FCP Funding Agencies None
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Affiliation(s)
- L Albino
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - R Rosentreter
- Medicine, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
| | - C Lu
- Medicine, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
| | - J Siffledeen
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - L A Dieleman
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - C Ma
- Medicine, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
| | - D C Baugmart
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - L Du
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - B Halloran
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - K Kroeker
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - F Peerani
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
| | - K Wong
- University of Alberta Faculty of Medicine and Dentistry, Edmonton, BC, Canada
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Guan J, Lu Y, Du L, Liang C, Wu J, Li D, Zhang S. An Aromatic Fluoropolymer For Hydrogen Separation From Hydrocarbons. Macromol Rapid Commun 2022; 43:e2100796. [PMID: 35020970 DOI: 10.1002/marc.202100796] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/23/2021] [Revised: 12/27/2021] [Indexed: 11/10/2022]
Abstract
Plasticization has been a critical challenge in membrane-based gas separation. Here we report a novel fluoropolymer, poly (trifluoro styrene) (PTFS) for hydrogen separation from hydrocarbons. The polymer structure was first characterized by different techniques such as nuclear magnetic resonance (NMR) and positron annihilation lifetime spectroscopy (PALS). Then, gas separation performances of the polymer were studied. The separation of H2 /CH4 was found to outperform most other fluorinated polymers and surpass the Robeson 1991 upper bound. Furthermore, the polymer demonstrated stable or increasing selectivity for hydrogen over hydrocarbons (CH4 , C2 H6 and C3 H8 ) at higher pressure, suggesting excellent resistance to plasticization. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jian Guan
- J. Guan, Y. Lu, C. Liang, J. Wu, Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Yanqiu Lu
- J. Guan, Y. Lu, C. Liang, J. Wu, Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Lijun Du
- L. Du, Shanghai Huayi 3F New Materials Co., Ltd, No. 560 Xujiahui Road, Shanghai, 200032, China
| | - Canzeng Liang
- J. Guan, Y. Lu, C. Liang, J. Wu, Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Ji Wu
- J. Guan, Y. Lu, C. Liang, J. Wu, Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Dongfei Li
- D. Li, S. Zhang, Keysino Separation Technology Singapore Pte Ltd, 04-05 Singapore Water Exchange, 84 Toh Guan Road East, Singapore, 608501, Singapore
| | - Sui Zhang
- D. Li, S. Zhang, Keysino Separation Technology Singapore Pte Ltd, 04-05 Singapore Water Exchange, 84 Toh Guan Road East, Singapore, 608501, Singapore
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Chen Y, Niu Y, Hao W, Zhang W, Lu J, Zhou J, Du L, Xie W. Pineapple Leaf Phenols Attenuate DSS-Induced Colitis in Mice and Inhibit Inflammatory Damage by Targeting the NF-κB Pathway. Molecules 2021; 26:molecules26247656. [PMID: 34946738 PMCID: PMC8707949 DOI: 10.3390/molecules26247656] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/23/2021] [Accepted: 12/16/2021] [Indexed: 11/25/2022] Open
Abstract
Colitis is not fully curable, although currently, some treatment options are being adopted. In this study, we investigated the effects of pineapple leaf phenols (PLPs), natural phenol products from pineapple leaves, on DSS-induced colitis in mice. The results showed that PLPs dramatically decreased the inflammatory response by inhibiting NF-κB activation and the secretion of pro-inflammatory factors. Moreover, PLPs provided protection against DSS-induced acute colitis by maintaining epithelial integrity. Caffeic and P-coumaric acids had similar effects and could be the active components responsible for PLPs’ effect on colitis. These results indicate that the oral administration of PLPs might be considered as a therapeutic strategy in the treatment of patients with colitis. However, further research on clinical applications and the exact effect of PLPs on colitis is required.
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Affiliation(s)
- Yang Chen
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yaoyun Niu
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Wenhui Hao
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Wanqiu Zhang
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Jinghua Lu
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin Zhou
- Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China;
| | - Lijun Du
- Laboratory of Pharmaceutical Science, School of Life Science, Tsinghua University, Beijing 100084, China
- Correspondence: (L.D.); (W.X.); Tel.: +86-755-26036886 (W.X.)
| | - Weidong Xie
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (Y.C.); (Y.N.); (W.H.); (W.Z.); (J.L.)
- Shenzhen Key Lab of Health Science and Technology, Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Correspondence: (L.D.); (W.X.); Tel.: +86-755-26036886 (W.X.)
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Gong Q, Wang M, Jiang Y, Zha C, Yu D, Lei F, Luo Y, Feng Y, Yang S, Li J, Du L. The abrupt pathological deterioration of cisplatin-induced acute kidney injury: Emerging of a critical time point. Pharmacol Res Perspect 2021; 9:e00895. [PMID: 34817124 PMCID: PMC8611776 DOI: 10.1002/prp2.895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/26/2021] [Indexed: 12/23/2022] Open
Abstract
Cisplatin (CP), an anticancer drug, often causes kidney damage. However, the mechanism of CP-induced acute kidney injury (AKI) is not completely understood. AKI was induced by intravenous injection (i.v.) of cisplatin at doses of 5, 8, and 10 mg/kg. Anemoside B4 (B4) (20 mg/kg, i.m.) and dexamethasone (DXM) (0.5 mg/kg, i.v.) were used for AKI treatment. Biochemical indicators were assessed using an automatic biochemical analyzer, protein expression was analyzed by western blotting, and morphological changes in the kidney were examined by PAS staining. The serum creatinine (Cre) and blood urea nitrogen (BUN) levels did not change significantly in the first 2 days but abruptly increased on the third day after CP injection. The serum albumin (ALB) and total protein (TP) levels decreased in both a time- and dose-dependent manner. The urine protein level increased, the clearing rate of Cre decreased distinctly, and morphologic changes appeared in a dose-dependent manner. The protein expression of p53/caspase-3, NLRP3, IL-6, and TNF-α was obviously upregulated on day 3; concurrently, nephrin and podocin were downregulated. The expression of LC3II and p62 was upregulated significantly as the CP dose increased. B4 and DXM obviously decreased the BUN and Cre levels after 3 or 5 days of treatment. AKI appeared distinctly in a time-dependent manner at 2 to 5 days after the administration of 5 mg/kg CP and in a dose-dependent manner upon the administration of 5, 8, and 10 mg/kg CP. The third day was a significant time point for renal deterioration, and treatment with B4 and DXM within the first 3 days provided significant protection against AKI.
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Affiliation(s)
- Qin Gong
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Mulan Wang
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Ya Jiang
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
| | - Chengliang Zha
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Dong Yu
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
| | - Fan Lei
- School of Life SciencesTsinghua UniversityBeijingChina
| | - Yingying Luo
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Yulin Feng
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Shilin Yang
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Jun Li
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
| | - Lijun Du
- School of PharmacyJiangxi University of Traditional Chinese MedicineNanchangChina
- Pharmacology LaboratoryState Key Laboratory of Innovative Drugs and Efficient Energy‐saving Pharmaceutical EquipmentNanchangChina
- School of Life SciencesTsinghua UniversityBeijingChina
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Abstract
BACKGROUND Streptococcus pneumoniae is an important cause of pediatric meningitis. OBJECTIVE The aim of this study was to analyze the clinical features and outcomes of children with pneumococcal meningitis at our hospital in China, so as to provide basis for improving the clinical treatment effect. METHODS This retrospective analysis included patients aged <16 years treated for pneumococcal meningitis at the Department of Neurology, Children's Hospital of Shanxi (January 2014-February 2016). Clinical data were extracted from the medical records. Patients were followed up for 6 months after discharge. RESULTS The analysis included 26 children aged 2 months to 13 years, with 17 (65.4%) aged <3 years. Presenting symptoms included fever (100%), lethargy (100%), impaired consciousness (88.5%), neck stiffness (69.2%), seizures (53.8%), and headache (50.0%). All patients had positive cerebrospinal fluid (CSF) cultures. The final treatment was vancomycin combined with a third-generation cephalosporin or other antibiotics in 25 patients. Eleven patients (42.3%) were recovered, 3 (11.5%) had neurological sequelae, and 12 (46.2%) died. Impaired consciousness (p = 0.035), cerebral hernia (p = 0.037), respiratory failure (p = 0.004), heart failure (p = 0.044), septic shock (p = 0.037), low CSF white blood cell count (p = 0.036), high CSF protein levels (p = 0.028), low white blood cell count (p = 0.036), and low blood neutrophil ratio (p = 0.016) are associated with a poor prognosis to pneumococcal meningitis. CONCLUSION Pneumococcal meningitis is associated with a poor prognosis in many children. Poor prognosis might be related to early ineffective antibiotic therapy, a combination of systemic failure, neurological problems, and changed inflammatory response. It is important to rapid initiation of appropriate antibiotic therapy if meningitis is suspected.
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Affiliation(s)
- Wenhui Wang
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan, Shanxi, China,Address for correspondence Wenhui Wang, MS Department of Neurology, Children's Hospital of ShanxiNo. 13 Xinmin North Street, Xinghualing, Taiyuan, Shanxi 030013China
| | - Hong Han
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan, Shanxi, China
| | - Lijun Du
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan, Shanxi, China
| | - Zhaoyang Li
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan, Shanxi, China
| | - Yunhong Wu
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan, Shanxi, China
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Hsu CCT, Jeavon C, Fomin I, Du L, Buchan C, Watkins TW, Nae Y, Parry NM, Aviv RI. Dual-Layer Spectral CT Imaging of Upper Aerodigestive Tract Cancer: Analysis of Spectral Imaging Parameters and Impact on Tumor Staging. AJNR Am J Neuroradiol 2021; 42:1683-1689. [PMID: 34326102 DOI: 10.3174/ajnr.a7239] [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: 08/03/2020] [Accepted: 04/20/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Dual-layer spectral CT is a novel technology that utilized conventional single-tube CT acquisition with a dual-layer detector for the separation of high and low-energy photons to create spectral data for material decomposition. We evaluated the spectral parameters of iodine density and Z-effective values in primary head and neck squamous cell carcinoma and determined its impact on local tumor staging. MATERIALS AND METHODS Twenty-one patients with primary head and neck squamous cell carcinoma and 15 healthy controls were retrospectively evaluated. Iodine density (milligram/milliliter) and Z-effective values were compared quantitatively between head and neck squamous cell carcinoma and normal neck mucosa. The receiver operating characteristic area under the curve determined the diagnostic performance of the spectral data for local staging. We compared conventional CT images without and with iodine density and Z-effective images to determine its impact on local tumor staging. RESULTS Primary head and neck squamous cell carcinoma showed higher mean iodine density (2.01 [SD, 0.26] mg/mL, P < .001) and Z-effective values (8.21 [SD, 0.36], P < .001). A high interobserver correlation was demonstrated for ROI measurements for both the control group (iodine density, κ = 0.71, and Z-effective values, κ = 0.78) and head and neck squamous cell carcinoma (iodine density, κ = 0.84, and Z-effective values, κ = 0.75) group. The area under the curve for iodine density and Z-effective values was 0.98 and 0.93, respectively. Optimal thresholds were identified as 1.58 mg/mL (95% CI, 1.45-1.71 mg/mL; P < .001; sensitivity = 1.0; specificity = .0.93) for iodine density and 8.08 (95% CI, 7.96-8.19; P < .001; sensitivity = 0.86; specificity = 0.93) for Z-effective values. Conventional CT with the addition of dual-layer spectral data (iodine density and Z-effective values) improved the accuracy of local tumor staging in 3 of 21 patients (14%) with head and neck squamous cell carcinoma compared with the criterion standard surgical staging/histopathology. CONCLUSIONS Dual-layer spectral iodine density and Z-effective values provided increased quantitative and qualitative differentiation between upper aerodigestive head and neck squamous cell carcinoma and normal mucosa. Increased tissue differentiation improved the local tumor staging accuracy.
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Affiliation(s)
- C C-T Hsu
- From the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.)
| | - C Jeavon
- From the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.)
| | - I Fomin
- From the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.)
| | - L Du
- Department of Medical Imaging and Division of Nuclear Medicine (L.D.), and Department of Medical Imaging, Gold Coast University Hospital, Queensland, Australia
| | - C Buchan
- From the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.)
| | - T W Watkins
- Department of Medical Imaging (T.W.W.), Princess Alexandra Hospital, Queensland, Australia
| | - Y Nae
- Philips Healthcare (Y.N.), Haifa, Israel
| | - N M Parry
- From the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.)
| | - R I Aviv
- Division of Neuroradiology (R.I.A.), Department of Medical Imaging, The Ottawa Hospital, University of Ottawa, Ontario, Canada
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Guo D, Du L, Chan CHY. P–501 Deep in the Maze: The psychosocial trajectory and decision making of Women with recurrent implantation failure of IVF. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.500] [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: 11/14/2022] Open
Abstract
Abstract
Study question
To understand the psychosocial trajectory of Chinese women who have experienced recurrent implantation failure (RIF) of IVF and their decision making accordingly.
Summary answer
Chinese women experience despair, doubt, and disorientation along with the cumulative failure cycles of IVF, and stick to IVF as the ultimate option.
What is known already
Recurrent implantation failure, the absence of implantation after repeated embryo transfers is a stressful event for people undergoing treatment for infertility. Numerous researches have focused on the psychological wellness of women undertaking IVF, but pay less attention to the subgroup who have undergone repeated failures. Current studies have shown that women after repeated unsuccessful IVF might endure anxiety, depression, and other psychosocial distress; however, the feelings brought by the different times of failure are unlike, and these experiences will affect their treatment decisions accordingly, which is rarely studied.
Study design, size, duration
Semi-structured interview was adopted with sixteen Chinese women from March 2020 to July 2020. The interview lasted 90 minutes. A follow-up survey was conducted three months after the interview. Driven by grounded theory, data is analyzed by thematic analysis.
Participants/materials, setting, methods
Convenience sampling was used to recruit female participants who have failed to achieve clinical pregnancy after two consecutive cycles of fresh or frozen IVF embryo transfers with a cumulative number of transferred embryos of four or more cleavage-stage embryos or two or more blastocysts. Chinese-speaking women who were undertaking IVF treatment in the reproductive center of hospital in Shenzhen City were recruited by pamphlets and doctors’ referral.
Main results and the role of chance
Chinese women with recurrent implantation failures experience the following psychosocial trajectory during the cumulative failure cycles of IVF: despair, doubt, and disorientation. Despair usually comes after the first failure: the high expectation for success rates makes the initial failure exceptionally shocking and desperate. Huge distress brings two kinds of decisions: start a new IVF cycle quickly to welcome the positive results in the imagination, or wait for a period of time to avoid the pain of failure again. Doubt usually appears after the second failure. In addition to doubting the health function of their body, recurrent failure makes the patients particularly doubt the efficacy of IVF and doctors’ clinical judgment. Some patients would do ‘hospital shopping’ and consider change clinics. Disorientation can be seen in patients who have experienced more than three cycles of failure. Past experience and meaning cannot help them understand and solve the current dilemma. The inherent concept of fertility continues to strengthen their belief of having a baby as ultimate goal. The follow-up survey found that most women still choose to continue IVF treatment after repeated failure. They are like being in the maze of fertility, wandering for a long time but unable to get out.
Limitations, reasons for caution
Several limitations are identified: self-selection bias due to convenience sampling; narrow sampling approach may limits the generalizability; the exclusion of men may ignore the marital interdependence during the infertility treatment.
Wider implications of the findings: Patients who have experienced recurrent implantation failure demand promising intervention during and after infertility treatment. The findings demonstrate the need for both supportive and implication counseling to facilitate them cope with the psychosocial distress, and make value-based decision making, so as to enhance their self-agency.
Trial registration number
Not applicable
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Affiliation(s)
- D Guo
- The University of Hong Kong, Social Work and Social Administration, Hong Kong, Hong Kong
| | - L Du
- The University of Hong Kong-Shenzhen Hospital, The Department of Gynaecology and Obstetrics, Shenzhen, China
| | - C H Y Chan
- The University of Hong Kong, Social Work and Social Administration, Hong Kong, Hong Kong
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Li H, Zhang X, Wei W, Zhang L, Chen Z, Cao M, Cheng J, Du L, Zhao J, Fang Z, Li X, Chen P. An innovative application of follicular unit extraction technique in the treatment of bromhidrosis. J Eur Acad Dermatol Venereol 2021; 35:2300-2304. [PMID: 34331817 DOI: 10.1111/jdv.17571] [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: 04/12/2021] [Accepted: 07/21/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Surgery is the most effective way to treat bromhidrosis, but postoperative complications are still the biggest obstacles for patients to choose surgical treatment. OBJECTIVES To introduce an innovative application of follicular unit extraction (FUE) in the treatment of bromhidrosis. METHODS We conducted a case series study on 20 patients who received FUE technique for the treatment of bromhidrosis. The axillary hair follicles were extracted with a one-millimetre punch. The released hair follicles were collected for histological examination. After the operation, the wounds were wrapped with moderate pressure. The dressing was removed 24 h after the FUE operation. The postoperative complications were collected, and the improvement of malodour was evaluated by the 10-point visual analogue scale. RESULTS Immediately postoperation, many needle-shaped holes appeared in the armpits. The holes healed 7 days after the operation, with no scar or pinpoint-like scars. Except for a female who complained of mild pain in the left armpit, no other patients had any discomfort. The malodour level varied between 0 and 4 during the follow-up period. The tissue examination showed that more than 90% of the completely plucked hair follicles were accompanied by apocrine glands, and many blocked and dilated apocrine glands were observed. The lumens of the blocked glands were filled with decapitation products, which were positive for K5, Brst-2 and CEA. CONCLUSIONS Patients with bromhidrosis have a positive response to FUE technique. The FUE technique is well-tolerated, with only a few postoperative complications, which deserves to be widely promoted.
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Affiliation(s)
- H Li
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - X Zhang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - W Wei
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - L Zhang
- Mental Health Center, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Z Chen
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - M Cao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - J Cheng
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - L Du
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - J Zhao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Z Fang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - X Li
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - P Chen
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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Fang P, Cai D, Du L, Shen F, Zhang C, Li M. Relationship Between Polymorphism of Thrombin-Activatable Fibrinolysis Inhibitor Gene +1040C/T and a Cohort of Chinese Women With Recurrent Spontaneous Abortion. Clin Appl Thromb Hemost 2021; 27:10760296211029720. [PMID: 34189940 PMCID: PMC8252372 DOI: 10.1177/10760296211029720] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The balance between coagulation and fibrinolysis is essential for a successful pregnancy. This study aimed to explore the genetic variant of +1040C/T in the coding region of thrombin-activatable fibrinolysis inhibitor (TAFI) gene in women with recurrent spontaneous abortion (RSA) and in unrelated healthy controls and to investigate the possible association between TAFI +1040C/T polymorphism and RSA. Peripheral blood samples were collected from 137 Chinese patients with RSA and 103 unrelated healthy Chinese controls. The TAFI +1040C/T polymorphism was analyzed using SNaPshot SNP typing after DNA extraction. The frequency of the C allele was lower in RSA patients compared with the controls (0.78 vs 0.84). A subanalysis of the TAFI +1040C/T polymorphism in the 2 populations of RSA women (groups 2RSA and >2RSA) showed that the +1040CT genotype was significantly higher and the +1040CC genotype was significantly lower than from that found in controls. The allele +1040C was associated with a reduced risk of RSA in both group 2RSA (OR = 0.418, 95%CI, 0.255-0.685) and group >2RSA (OR = 0.473, 95%CI, 0.274-0.819) compared with controls. Our data indicate a protective role for TAFI +1040C allele against RSA, and may be associated with the genetic susceptibility of RSA.
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Affiliation(s)
- Ping Fang
- Department of Medical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong, People's Republic of China
| | - Decheng Cai
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Lijun Du
- Department of Medical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong, People's Republic of China
| | - Fei Shen
- Department of Medical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong, People's Republic of China
| | - Chengfang Zhang
- Department of Medical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong, People's Republic of China
| | - Meijuan Li
- Department of Medical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, Guangdong, People's Republic of China
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Hsu CCT, Du L, Luong D, Suthiphosuwan S, Bharatha A, Krings T, Haacke EM, Osborn AG. More on Exploiting the T1 Shinethrough and T2* Effects Using Multiecho Susceptibility-Weighted Imaging. AJNR Am J Neuroradiol 2021; 42:E62-E63. [PMID: 34167958 DOI: 10.3174/ajnr.a7175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- C C-T Hsu
- Division of Neuroradiology, Department of Medical ImagingGold Coast University HospitalSouthport, Queensland, Australia
| | - L Du
- Division of Neuroradiology, Department of Medical ImagingGold Coast University HospitalSouthport, Queensland, Australia
| | - D Luong
- Division of Neuroradiology, Department of Medical ImagingGold Coast University HospitalSouthport, Queensland, Australia
| | - S Suthiphosuwan
- Division of Neuroradiology, Department of Medical ImagingSt Michael's HospitalToronto, Ontario, Canada
| | - A Bharatha
- Division of Neuroradiology, Department of Medical Imaging and Division Neurosurgery, Department of SurgerySt. Michael's HospitalToronto, Ontario, Canada
| | - T Krings
- Division of Neuroradiology, Department of Medical ImagingToronto Western HospitalToronto, Ontario, Canada
| | - E M Haacke
- Department of RadiologyWayne State UniversityDetroit, Michigan
| | - A G Osborn
- Departments of Pathology and Radiology and Imaging SciencesUniversity of UtahSalt Lake City, Utah
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Everett D, Ke W, Paquet JF, Vujanovic G, Bass SA, Du L, Gale C, Heffernan M, Heinz U, Liyanage D, Luzum M, Majumder A, McNelis M, Shen C, Xu Y, Angerami A, Cao S, Chen Y, Coleman J, Cunqueiro L, Dai T, Ehlers R, Elfner H, Fan W, Fries RJ, Garza F, He Y, Jacak BV, Jacobs PM, Jeon S, Kim B, Kordell M, Kumar A, Mak S, Mulligan J, Nattrass C, Oliinychenko D, Park C, Putschke JH, Roland G, Schenke B, Schwiebert L, Silva A, Sirimanna C, Soltz RA, Tachibana Y, Wang XN, Wolpert RL. Phenomenological Constraints on the Transport Properties of QCD Matter with Data-Driven Model Averaging. Phys Rev Lett 2021; 126:242301. [PMID: 34213947 DOI: 10.1103/physrevlett.126.242301] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/05/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain the shear and bulk viscosities of quark-gluon plasma (QGP) at temperatures of ∼150-350 MeV. We use Bayesian inference to translate experimental and theoretical uncertainties into probabilistic constraints for the viscosities. With Bayesian model averaging we propagate an estimate of the model uncertainty generated by the transition from hydrodynamics to hadron transport in the plasma's final evolution stage, providing the most reliable phenomenological constraints to date on the QGP viscosities.
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Affiliation(s)
- D Everett
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - W Ke
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - J-F Paquet
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - G Vujanovic
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - S A Bass
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - L Du
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - C Gale
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - M Heffernan
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - U Heinz
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - D Liyanage
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - M Luzum
- Instituto de Fìsica, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, SP, Brazil
| | - A Majumder
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - M McNelis
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - C Shen
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y Xu
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - A Angerami
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Cao
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - Y Chen
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Coleman
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
| | - L Cunqueiro
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - T Dai
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - R Ehlers
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H Elfner
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
- Institute for Theoretical Physics, Goethe University, 60438 Frankfurt am Main, Germany
- Frankfurt Institute for Advanced Studies, 60438 Frankfurt am Main, Germany
| | - W Fan
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - R J Fries
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - F Garza
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - Y He
- Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
| | - B V Jacak
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - P M Jacobs
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - S Jeon
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - B Kim
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - M Kordell
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
- Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - A Kumar
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - S Mak
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
| | - J Mulligan
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - C Nattrass
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D Oliinychenko
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
| | - C Park
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - J H Putschke
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - G Roland
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schenke
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - L Schwiebert
- Department of Computer Science, Wayne State University, Detroit, Michigan 48202, USA
| | - A Silva
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - C Sirimanna
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - R A Soltz
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y Tachibana
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
| | - X-N Wang
- Department of Physics, University of California, Berkeley, California 94270, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, USA
- Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
| | - R L Wolpert
- Department of Statistical Science, Duke University, Durham, North Carolina 27708, USA
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47
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Zhang Y, Feng L, Wang X, Fox M, Luo L, Du L, Chen B, Chen X, He H, Zhu S, Hu Z, Chen S, Long Y, Zhu Y, Xu L, Deng Y, Misselwitz B, Lang BM, Yilmaz B, Kim JJ, Owyang C, Dai N. Low fermentable oligosaccharides, disaccharides, monosaccharides, and polyols diet compared with traditional dietary advice for diarrhea-predominant irritable bowel syndrome: a parallel-group, randomized controlled trial with analysis of clinical and microbiological factors associated with patient outcomes. Am J Clin Nutr 2021; 113:1531-1545. [PMID: 33740048 DOI: 10.1093/ajcn/nqab005] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [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: 09/25/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The efficacy and factors associated with patient outcomes for a diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (LFD) compared with traditional dietary advice (TDA) based on modified National Institute for Clinical Excellence guidelines for irritable bowel syndrome with diarrhea (IBS-D) in regions consuming a non-Western diet are unclear. OBJECTIVES We aimed to determine the efficacy of an LFD compared with TDA for the treatment of IBS-D in Chinese patients and to investigate the factors associated with favorable outcomes. METHODS One hundred and eight Chinese IBS-D patients (Rome III criteria) were randomly assigned to an LFD or TDA. The primary endpoint was a ≥50-point reduction in the IBS Severity Scoring System at 3 wk. Fecal samples collected before and after the dietary intervention were assessed for changes in SCFAs and microbiota profiles. A logistic regression model was used to identify predictors of outcomes. RESULTS Among the 100 patients who completed the study, the primary endpoint was met in a similar number of LFD (30 of 51, 59%) and TDA (26 of 49, 53%) patients (∆6%; 95% CI: -13%, 24%). Patients in the LFD group achieved earlier symptomatic improvement in stool frequency and excessive wind than those following TDA. LFD reduced carbohydrate-fermenting bacteria such as Bifidobacterium and Bacteroides, and decreased saccharolytic fermentation activity. This was associated with symptomatic improvement in the responders. High saccharolytic fermentation activity at baseline was associated with a higher symptom burden (P = 0.01) and a favorable therapeutic response to the LFD (log OR: 4.9; 95% CI: -0.1, 9.9; P = 0.05). CONCLUSIONS An LFD and TDA each reduced symptoms in Chinese IBS-D patients; however, the LFD achieved earlier symptomatic improvements in stool frequency and excessive wind. The therapeutic effect of the LFD was associated with changes in the fecal microbiota and the fecal fermentation index. At baseline, the presence of severe symptoms and microbial metabolic dysbiosis characterized by high saccharolytic capability predicted favorable outcomes to LFD intervention.This trial was registered at clinicaltrials.gov as NCT03304041.
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Affiliation(s)
- Yawen Zhang
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Lijun Feng
- Department of Nutrition, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Xin Wang
- State Microbial Technology of Zhejiang Province, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Mark Fox
- Digestive Function: Basel, Laboratory and Clinic for Disorders of Gastrointestinal Motility and Function, Center for Integrative Gastroenterology, Klinik Arlesheim, Arlesheim, Switzerland.,Department of Gastroenterology and Hepatology, Zurich University Hospital, University of Zurich, Zürich, Switzerland
| | - Liang Luo
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Lijun Du
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Binrui Chen
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Xiaoli Chen
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Huiqin He
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Shuwen Zhu
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China.,Department of Gastroenterology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Zhefang Hu
- Department of Nutrition, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Shujie Chen
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Yanqin Long
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Yubin Zhu
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Li Xu
- Department of Nutrition, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Yanyong Deng
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China
| | - Benjamin Misselwitz
- Department of Visceral Surgery and Medicine, Inselspital, University of Bern, Bern, Switzerland
| | - Brian M Lang
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Bahtiyar Yilmaz
- Maurice Müller Laboratories, Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - John J Kim
- Division of Gastroenterology, Loma Linda University Health, Loma Linda, CA, USA
| | - Chung Owyang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Ning Dai
- Department of Gastroenterology, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang, China.,School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang, China
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48
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Du L, Kruse A. Cell disruption and value-added substances extraction from Arthrospira platensis using subcritical water. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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49
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Zhao J, Li H, Chen G, Du L, Xu P, Zhang X, Xie M, Cao T, Li H. Aneuploid abortion correlates positively with MAD1 overexpression and miR-125b down-regulation. Mol Cytogenet 2021; 14:22. [PMID: 33902659 PMCID: PMC8074413 DOI: 10.1186/s13039-021-00538-1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Aneuploidy is the most frequent cause of early-embryo abortion. Any defect in chromosome segregation would fail to satisfy the spindle assembly checkpoint (SAC) during mitosis, halting metaphase and causing aneuploidy. The mitotic checkpoint complex (MCC), comprising MAD1, MAD2, Cdc20, BUBR1 and BUB3, plays a vital role in SAC activation. Studies have confirmed that overexpression of MAD2 and BUBR1 can facilitate correct chromosome segregation and embryo stability. Research also proves that miR-125b negatively regulates MAD1 expression by binding to its 3'UTR. However, miR-125b, Mad1 and Bub3 gene expression in aneuploid embryos of spontaneous abortion has not been reported to date. METHODS In this study, embryonic villi from miscarried pregnancies were collected and divided into two groups (aneuploidy and euploidy) based on High-throughput ligation-dependent probe amplification (HLPA) and Fluorescence in situ hybridization (FISH) analyses. RNA levels of miR-125b, MAD1 and BUB3 were detected by Quantitative real-time PCR (qRT-PCR); protein levels of MAD1 and BUB3 were analysed by Western blotting. RESULTS statistical analysis (p < 0.05) showed that miR-125b and BUB3 were significantly down-regulated in the aneuploidy group compared to the control group and that MAD1 was significantly up-regulated. Additionally, the MAD1 protein level was significantly higher in aneuploidy abortion villus, but BUB3 protein was only mildly increased. Correlation analysis revealed that expression of MAD1 correlated negatively with miR-125b. CONCLUSION These results suggest that aneuploid abortion correlates positively with MAD1 overexpression, which might be caused by insufficient levels of miR-125b. Taken together, our findings first confirmed the negative regulatory mode between MAD1 and miR-125b, providing a basis for further mechanism researches in aneuploid abortion.
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Affiliation(s)
- Juan Zhao
- Department of the Clinical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Hui Li
- Department of Internal Medicine, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Guangxin Chen
- Department of the Clinical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Lijun Du
- Department of the Clinical Laboratory, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Peiyan Xu
- Department of Internal Medicine, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Xiaoli Zhang
- Department of Obstetrics and Gynaecology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China
| | - Min Xie
- Central Laboratory of Birth Defects Prevention and Control, Ningbo Women & Children's Hospital, Ningbo, 315000, Zhejiang, China
| | - Tiansheng Cao
- Surgical Department, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangdong, 510800, China.
| | - Haibo Li
- Central Laboratory of Birth Defects Prevention and Control, Ningbo Women & Children's Hospital, Ningbo, 315000, Zhejiang, China.
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50
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Zhang Y, Cen M, Hu M, Du L, Hu W, Kim JJ, Dai N. Prevalence and Persistent Shedding of Fecal SARS-CoV-2 RNA in Patients With COVID-19 Infection: A Systematic Review and Meta-analysis. Clin Transl Gastroenterol 2021; 12:e00343. [PMID: 33835096 PMCID: PMC8036078 DOI: 10.14309/ctg.0000000000000343] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/04/2021] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION The prevalence and shedding of fecal severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA indicate coronavirus disease 2019 (COVID-19) infection in the gastrointestinal (GI) tract and likely infectivity. We performed a systemic review and meta-analysis to evaluate the prevalence and the duration of shedding of fecal RNA in patients with COVID-19 infection. METHODS PubMed, Embase, Web of Science, and Chinese databases Chinese National Knowledge Infrastructure and Wanfang Data up to June 2020 were searched for studies evaluating fecal SARS-CoV-2 RNA, including anal and rectal samples, in patients with confirmed COVID-19 infection. The pooled prevalence of fecal RNA in patients with detectable respiratory RNA was estimated. The days of shedding and days to loss of fecal and respiratory RNA from presentation were compared. RESULTS Thirty-five studies (N = 1,636) met criteria. The pooled prevalence of fecal RNA in COVID-19 patients was 43% (95% confidence interval [CI] 34%-52%). Higher proportion of patients with GI symptoms (52.4% vs 25.9%, odds ratio = 2.4, 95% CI 1.2-4.7) compared with no GI symptoms, specifically diarrhea (51.6% vs 24.0%, odds ratio = 3.0, 95% CI 1.9-4.8), had detectable fecal RNA. After loss of respiratory RNA, 27% (95% CI 15%-44%) of the patients had persistent shedding of fecal RNA. Days of RNA shedding in the feces were longer than respiratory samples (21.8 vs 14.7 days, mean difference = 7.1 days, 95% CI 1.2-13.0). Furthermore, days to loss of fecal RNA lagged respiratory RNA by a mean of 4.8 days (95% CI 2.2-7.5). DISCUSSION Fecal SARS-CoV-2 RNA is commonly detected in COVID-19 patients with a 3-fold increased risk with diarrhea. Shedding of fecal RNA lasted more than 3 weeks after presentation and a week after last detectable respiratory RNA.
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Affiliation(s)
- Yawen Zhang
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mengsha Cen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mengjia Hu
- Department of Gastroenterology, The First Hospital of Jiaxing, Zhejiang, China
| | - Lijun Du
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weiling Hu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - John J. Kim
- Division of Gastroenterology and Hepatology, Loma Linda University Health, Loma Linda, California, USA
| | - Ning Dai
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang, China
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