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Quan L, Zhang F, Xu J, Wang F, Fan Y. Relationship between sarcopenia and fatty liver in middle-aged and elderly patients with type 2 diabetes mellitus. J Orthop Surg Res 2024; 19:250. [PMID: 38643133 PMCID: PMC11031894 DOI: 10.1186/s13018-024-04717-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 04/05/2024] [Indexed: 04/22/2024] Open
Abstract
OBJECTIVE In this study, we investigated the relationship between sarcopenia and fatty liver in middle-aged and elderly patients diagnosed with type 2 diabetes mellitus (T2DM) to provide a theoretical foundation for the prevention and treatment of sarcopenia. METHODS A total of 282 patients diagnosed with T2DM aged 50 and older and were admitted to the Endocrinology Department of Xin Medical University First Affiliated Hospital between December 2021 and February 2023, were selected. Body mass index (BMI), and limb and trunk muscle mass of the patients were measured, and data were collected. Patients were grouped based on the sarcopenia diagnostic criteria. All study participants underwent the same physical examinations and laboratory tests. The relationship between the onset of sarcopenia and fatty liver in middle-aged and elderly patients diagnosed with T2DM was then investigated using statistical analysis. RESULTS Comparing the sarcopenia group to the non-sarcopenia group revealed statistically significant variations in gender, BMI, fatty liver prevalence rate, uric acid (UA), alanine aminotransferase (ALT), blood glucose, blood lipid associated indicators, and limb skeletal muscle content. There were, however, no statistically significant differences in age, disease duration, hypertension, smoking, or alcohol intake. There was a positive correlation between BMI, UA, fasting c-peptide, and Appendicular Skeletal Muscle Index (ASMI). Higher levels of BMI, ASMI, and UA were identified as protective variables against sarcopenia by multifactorial logistic regression analysis. CONCLUSION Higher levels of BMI, ASMI, and UA can greatly reduce skeletal muscle atrophy in patients with T2DM. Patients with a fatty liver may be less vulnerable to sarcopenia. There is little evidence, however, that a fatty liver works as a preventive factor against sarcopenia.
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Affiliation(s)
- Li Quan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, department of endocrinology, The first Affiliated Hospital of Xinjiang Medical University, No. 137 of Liyushannan Street, Xinshi District, Urumqi, 830054, China
| | - Fang Zhang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, department of endocrinology, The first Affiliated Hospital of Xinjiang Medical University, No. 137 of Liyushannan Street, Xinshi District, Urumqi, 830054, China
| | - Jing Xu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, department of endocrinology, The first Affiliated Hospital of Xinjiang Medical University, No. 137 of Liyushannan Street, Xinshi District, Urumqi, 830054, China
| | - Fei Wang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, department of endocrinology, The first Affiliated Hospital of Xinjiang Medical University, No. 137 of Liyushannan Street, Xinshi District, Urumqi, 830054, China
| | - Yong Fan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, department of endocrinology, The first Affiliated Hospital of Xinjiang Medical University, No. 137 of Liyushannan Street, Xinshi District, Urumqi, 830054, China.
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2
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Quan L, Jiang H, Mei G, Sun Y, You B. Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting. Chem Rev 2024; 124:3694-3812. [PMID: 38517093 DOI: 10.1021/acs.chemrev.3c00332] [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: 03/23/2024]
Abstract
Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts for the two half-reactions of water splitting (e.g., the hydrogen and oxygen evolution reactions, HER and OER) separately, there has been a growing interest in designing and developing bifunctional electrocatalysts, which are able to catalyze both the HER and OER. In addition, considering the high overpotentials required for OER while limited value of the produced oxygen, there is another rapidly growing interest in exploring alternative oxidation reactions to replace OER for hybrid water splitting toward energy-efficient hydrogen generation. This Review begins with an introduction on the fundamental aspects of water splitting, followed by a thorough discussion on various physicochemical characterization techniques that are frequently employed in probing the active sites, with an emphasis on the reconstruction of bifunctional electrocatalysts during redox electrolysis. The design, synthesis, and performance of diverse bifunctional electrocatalysts based on noble metals, nonprecious metals, and metal-free nanocarbons, for overall water splitting in acidic and alkaline electrolytes, are thoroughly summarized and compared. Next, their application toward hybrid water splitting is also presented, wherein the alternative anodic reactions include sacrificing agents oxidation, pollutants oxidative degradation, and organics oxidative upgrading. Finally, a concise statement on the current challenges and future opportunities of bifunctional electrocatalysts for both overall and hybrid water splitting is presented in the hope of guiding future endeavors in the quest for energy-efficient and sustainable green hydrogen production.
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Affiliation(s)
- Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Hui Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Guoliang Mei
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yujie Sun
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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3
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Kong L, Zhao Q, Jiang X, Hu J, Jiang Q, Sheng L, Peng X, Wang S, Chen Y, Wan Y, Hou S, Liu X, Ma C, Li Y, Quan L, Chen L, Cui B, Li P. Trimethylamine N-oxide impairs β-cell function and glucose tolerance. Nat Commun 2024; 15:2526. [PMID: 38514666 PMCID: PMC10957989 DOI: 10.1038/s41467-024-46829-0] [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: 01/11/2023] [Accepted: 03/12/2024] [Indexed: 03/23/2024] Open
Abstract
β-Cell dysfunction and β-cell loss are hallmarks of type 2 diabetes (T2D). Here, we found that trimethylamine N-oxide (TMAO) at a similar concentration to that found in diabetes could directly decrease glucose-stimulated insulin secretion (GSIS) in MIN6 cells and primary islets from mice or humans. Elevation of TMAO levels impairs GSIS, β-cell proportion, and glucose tolerance in male C57BL/6 J mice. TMAO inhibits calcium transients through NLRP3 inflammasome-related cytokines and induced Serca2 loss, and a Serca2 agonist reversed the effect of TMAO on β-cell function in vitro and in vivo. Additionally, long-term TMAO exposure promotes β-cell ER stress, dedifferentiation, and apoptosis and inhibits β-cell transcriptional identity. Inhibition of TMAO production improves β-cell GSIS, β-cell proportion, and glucose tolerance in both male db/db and choline diet-fed mice. These observations identify a role for TMAO in β-cell dysfunction and maintenance, and inhibition of TMAO could be an approach for the treatment of T2D.
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Affiliation(s)
- Lijuan Kong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Qijin Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Xiaojing Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Jinping Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qian Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Li Sheng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaohong Peng
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Peking University, 100871, Beijing, China
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, 100871, Beijing, China
| | - Shusen Wang
- Tianjin First Central Hospital, Tianjin, China
| | - Yibing Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Yanjun Wan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Shaocong Hou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Xingfeng Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Chunxiao Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Yan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Quan
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, 100871, Beijing, China
| | - Liangyi Chen
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Peking University, 100871, Beijing, China
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, 100871, Beijing, China
| | - Bing Cui
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China
| | - Pingping Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
- Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, China.
- CAMS Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic Disorder and Tumorigenesis, Beijing, China.
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Liu X, Li S, Cui Q, Guo B, Ding W, Liu J, Quan L, Li X, Xie P, Jin L, Sheng Y, Chen W, Wang K, Zeng F, Qiu Y, Liu C, Zhang Y, Lv F, Hu X, Xiao RP. Activation of GPR81 by lactate drives tumour-induced cachexia. Nat Metab 2024:10.1038/s42255-024-01011-0. [PMID: 38499763 DOI: 10.1038/s42255-024-01011-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/13/2024] [Indexed: 03/20/2024]
Abstract
Cachexia affects 50-80% of patients with cancer and accounts for 20% of cancer-related death, but the underlying mechanism driving cachexia remains elusive. Here we show that circulating lactate levels positively correlate with the degree of body weight loss in male and female patients suffering from cancer cachexia, as well as in clinically relevant mouse models. Lactate infusion per se is sufficient to trigger a cachectic phenotype in tumour-free mice in a dose-dependent manner. Furthermore, we demonstrate that adipose-specific G-protein-coupled receptor (GPR)81 ablation, similarly to global GPR81 deficiency, ameliorates lactate-induced or tumour-induced adipose and muscle wasting in male mice, revealing adipose GPR81 as the major mediator of the catabolic effects of lactate. Mechanistically, lactate/GPR81-induced cachexia occurs independently of the well-established protein kinase A catabolic pathway, but it is mediated by a signalling cascade sequentially activating Gi-Gβγ-RhoA/ROCK1-p38. These findings highlight the therapeutic potential of targeting GPR81 for the treatment of this life-threatening complication of cancer.
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Affiliation(s)
- Xidan Liu
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Shijin Li
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Qionghua Cui
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Bujing Guo
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Wanqiu Ding
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Jie Liu
- Dazhou Central Hospital, Sichuan, China
| | - Li Quan
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Xiaochuan Li
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Peng Xie
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Li Jin
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Ye Sheng
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Wenxin Chen
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Kai Wang
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | | | - Yifu Qiu
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Changlu Liu
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yan Zhang
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Fengxiang Lv
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Xinli Hu
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
| | - Rui-Ping Xiao
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
- State Key Laboratory of Membrane Biology, Peking University, Beijing, China.
- Beijing City Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China.
- PKU-Nanjing Institute of Translational Medicine, Nanjing, China.
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Quan L, Xu S, Xu H, Chen F, Wu S, Zhu J, Liu S, Su T. Depression, anxiety, lower sleep quality and social support in square cabin hospitals during Shanghai's COVID-19 lockdown, China. Front Psychiatry 2024; 15:1339774. [PMID: 38374973 PMCID: PMC10875048 DOI: 10.3389/fpsyt.2024.1339774] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/18/2024] [Indexed: 02/21/2024] Open
Abstract
Objectives To investigate and compare the associated factors of depression, anxiety, and other psychological differences between patients with Corona Virus Disease 2019 quarantined in square cabin hospitals (SCH) and isolation wards (IW) in China. Methods Cluster sampling method was performed during Shanghai's Two-Month Lockdown in 2022. Hospital Anxiety and Depression Scale Depression subscale (HADS-D), 7-tiem Generalized Anxiety Disorder Scale (GAD-7), Pittsburgh sleep quality index (PSQI), and Perceived Social Support Scale (PSSS) were used to investigate psychological differences. Results The HADS-D and GAD-7 scores of SCH patients were significantly higher than those in IW (p < 0.001; p = 0.0295). Sleep latency (SCH-IW = -3.76, p < 0.001), sleep duration (SCH-IW = -2.22, p < 0.05), habitual sleep efficiency (SCH-IW = -4.11, p < 0.001), sleep disturbance (SCH-IW = -3.59, p < 0.001) and use of sleep medication (SCH-IW = -5.18, p < 0.001) of SCH patients were significantly worse. Depression was the main emotional problem of quarantined patients. Patients in SCH had lower social support. Sleep disorders and the lowest oxygen saturation ≤ 93% were risk factors for depression, while social support and child status were protective factors. Myalgia and constipation were risk factors for anxiety, while marital status was the protective factor. Conclusion Patients quarantined in SCH had higher risks of depression and anxiety, lower sleep quality and social support. Somatic discomfort and sleep disorders exacerbated depression and anxiety, which could be ameliorated by social support and taken into consideration in future SCH construction.
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Affiliation(s)
- Li Quan
- Department of Cardiology, Shanghai Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Shuyu Xu
- Faculty of Psychology, Naval Medical University, Shanghai, China
| | - Hao Xu
- Department of Infectious Diseases, the First Affiliated Hospital (Changhai Hospital) of Naval Medical University, Shanghai, China
| | - Feng Chen
- Department of Cardiology, the First Affiliated Hospital (Changhai Hospital) of Naval Medical University, Shanghai, China
| | - Shengyong Wu
- Department of Military Health Statistics, Naval Medical University, Shanghai, China
| | - Jiaqi Zhu
- Department of Cardiology, the First Affiliated Hospital (Changhai Hospital) of Naval Medical University, Shanghai, China
| | - Suxuan Liu
- Department of Cardiology, the First Affiliated Hospital (Changhai Hospital) of Naval Medical University, Shanghai, China
| | - Tong Su
- Faculty of Psychology, Naval Medical University, Shanghai, China
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Jiang W, Jiang Q, Shui Z, An P, Shi S, Liu T, Zhang H, Huang S, Jing B, Xiao E, Quan L, Liu J, Wang Z. HaMYBA-HabHLH1 regulatory complex and HaMYBF fine-tune red flower coloration in the corolla of sunflower (Helianthus annuus L.). Plant Sci 2024; 338:111901. [PMID: 37865209 DOI: 10.1016/j.plantsci.2023.111901] [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: 07/14/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023]
Abstract
Sunflowers are well-known ornamental plants, while sunflowers with red corolla are rare and the mechanisms underlying red coloration remain unclear. Here, a comprehensive analysis of metabolomics and transcriptomics on flavonoid pathway was performed to investigate the molecular mechanisms underlying the differential color formation between red sunflower Pc103 and two yellow sunflowers (Yr17 and Y35). Targeted metabolomic analysis revealed higher anthocyanin levels but lower flavonol content in Pc103 compared to the yellow cultivars. RNA-sequencing and phylogenetic analysis identified multiple genes involved in the flavonoid pathway, including series of structural genes and three MYB and bHLH genes. Specifically, HaMYBA and HabHLH1 were up-regulated in Pc103, whereas HaMYBF exhibited reduced expression. HaMYBA was found to interact with HabHLH1 in vivo and in vitro, while HaMYBF does not. Transient expression analysis further revealed that HabHLH1 and HaMYBA cooperatively regulate increased expression of dihydroflavonol 4-reductase (DFR), leading to anthocyanin accumulation. On the other hand, ectopic expression of HaMYBF independently modulates flavonol synthase (FLS) expression, but hindered anthocyanin production. Collectively, our findings suggest that the up-regulation of HaMYBA and HabHLH1, as well as the down-regulation of HaMYBF, contribute to the red coloration in Pc103. It offers a theoretical basis for improving sunflower color through genetic engineering.
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Affiliation(s)
- Wenhui Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China; Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences (CAAS), Shenzhen 518120, China
| | - Qinqin Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Zhijie Shui
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Peipei An
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Shandang Shi
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Tianxiang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Hanbing Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Shuyi Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Bing Jing
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Enshi Xiao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Li Quan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Jixia Liu
- Crop Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China.
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Quan L, Sun X, Xu L, Chen RA, Liu DX. Coronavirus RNA-dependent RNA polymerase interacts with the p50 regulatory subunit of host DNA polymerase delta and plays a synergistic role with RNA helicase in the induction of DNA damage response and cell cycle arrest in the S phase. Emerg Microbes Infect 2023; 12:e2176008. [PMID: 36724449 PMCID: PMC9937006 DOI: 10.1080/22221751.2023.2176008] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Disruption of the cell cycle is a common strategy shared by many viruses to create a conducible cellular microenvironment for their efficient replication. We have previously shown that infection of cells with gammacoronavirus infectious bronchitis virus (IBV) activated the theataxia-telangiectasia mutated (ATM) Rad3-related (ATR)/checkpoint kinase 1 (Chk1) pathway and induced cell cycle arrest in S and G2/M phases, partially through the interaction of nonstructural protein 13 (nsp13) with the p125 catalytic subunit of DNA polymerase delta (pol δ). In this study, we show, by GST pulldown, co-immunoprecipitation and immunofluorescent staining, that IBV nsp12 directly interacts with the p50 regulatory subunit of pol δ in vitro and in cells overexpressing the two proteins as well as in cells infected with a recombinant IBV harbouring an HA-tagged nsp12. Furthermore, nsp12 from severe acute respiratory syndrome coronavirus (SARS-CoV) and SARS-CoV-2 was also able to interact with p50. These interactions play a synergistic role with nsp13 in the induction of S phase arrest. The fact that subunits of an essential cellular DNA replication machinery physically associate with two core replication enzymes from three different coronaviruses highlights the importance of these associations in coronavirus replication and virus-host interaction, and reveals the potential of targeting these subunits for antiviral intervention.
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Affiliation(s)
- Li Quan
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China,Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
| | - Xinxin Sun
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China,Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
| | - Linghui Xu
- Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
| | - Rui Ai Chen
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China
| | - Ding Xiang Liu
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China,Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China, Ding Xiang Liu
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8
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Li C, Cheng K, Zhao Q, Jin L, Wang X, Liufu T, Zhao X, Li X, Wang X, Lyu J, Huang D, Li P, Chen XW, Wang Z, Hu X, Quan L, Chen Z. Diazo-carboxyl Click Derivatization Enables Sensitive Analysis of Carboxylic Acid Metabolites in Biosamples. Anal Chem 2023; 95:16976-16986. [PMID: 37943785 DOI: 10.1021/acs.analchem.3c03277] [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] [Indexed: 11/12/2023]
Abstract
Carboxylic acids are central metabolites in bioenergetics, signal transduction, and post-translation protein regulation. However, the quantitative analysis of carboxylic acids as an indispensable part of metabolomics is prohibitively challenging, particularly in trace amounts of biosamples. Here we report a diazo-carboxyl/hydroxylamine-ketone double click derivatization method for the sensitive analysis of hydrophilic, low-molecular-weight carboxylic acids. In general, our method renders a 5- to 2000-fold higher response in mass spectrometry along with improved chromatographic separation. With this method, we presented the near-single-cell analysis of carboxylic acid metabolites in 10 mouse egg cells before and after fertilization. Malate, fumarate, and β-hydroxybutyrate were found to decrease after fertilization. We also monitored the isotope labeling kinetics of carboxylic acids inside adherent cells cultured in 96-well plates during drug treatment. Finally, we applied this method to plasma or serum samples (5 μL) collected from mice and humans under pathological and physiological conditions. The double click derivatization method paves a way toward single-cell metabolomics and bedside diagnostics.
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Affiliation(s)
- Cong Li
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Kunlun Cheng
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Qijin Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Li Jin
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Xuelian Wang
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Tongling Liufu
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Xutong Zhao
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Xiaochuan Li
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Xiao Wang
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Jia Lyu
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Dong Huang
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Pingping Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiao-Wei Chen
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing 100034, China
| | - Xinli Hu
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Li Quan
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Zhixing Chen
- College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- National Biomedical Imaging Center, Beijing 100871, China
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9
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Xue W, Quan L, Liu H, Yu B, Chen X, Xia BY, You B. Bromine-Enhanced Generation and Epoxidation of Ethylene in Tandem CO 2 Electrolysis Towards Ethylene Oxide. Angew Chem Int Ed Engl 2023; 62:e202311570. [PMID: 37699856 DOI: 10.1002/anie.202311570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/14/2023]
Abstract
The indirect electro-epoxidation of ethylene (C2 H4 ), produced from CO2 electroreduction (CO2 R), holds immense promise for CO2 upcycling to valuable ethylene oxide (EO). However, this process currently has a mediocre Faradaic efficiency (FE) due to sluggish formation and rapid dissociation of active species, as well as reductive deactivation of Cu-based electrocatalysts during the conversion of C2 H4 to EO and CO2 to C2 H4 , respectively. Herein, we report a bromine-induced dual-enhancement strategy designed to concurrently promote both C2 H4 -to-EO and CO2 -to-C2 H4 conversions, thereby improving EO generation, using single-atom Pt on N-doped CNTs (Pt1 /NCNT) and Br- -bearing porous Cu2 O as anode and cathode electrocatalysts, respectively. Physicochemical characterizations including synchrotron X-ray absorption, operando infrared spectroscopy, and quasi in situ Raman spectroscopy/electron paramagnetic resonance with theoretical calculations reveal that the favorable Br2 /HBrO generation over Pt1 /NCNT with optimal intermediate binding facilitates C2 H4 -to-EO conversion with a high FE of 92.2 %, and concomitantly, the Br- with strong nucleophilicity protects active Cu+ species in Cu2 O effectively for improved CO2 -to-C2 H4 conversion with a FE of 66.9 % at 800 mA cm-2 , superior to those in the traditional chloride-mediated case. Consequently, a single-pass FE as high as 41.1 % for CO2 -to-EO conversion can be achieved in a tandem system.
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Affiliation(s)
- Wenjie Xue
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Hongxia Liu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, Hubei, 430200, China
| | - Bo Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xinqing Chen
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bao Yu Xia
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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10
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Li W, Quan L, Peng K, Wang Y, Wang X, Chen Q, Cheng H, Ma Q. Succinate dehydrogenase is essential for epigenetic and metabolic homeostasis in hearts. Basic Res Cardiol 2023; 118:45. [PMID: 37819607 DOI: 10.1007/s00395-023-01015-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
A hallmark of heart failure is a metabolic switch away from fatty acids β-oxidation (FAO) to glycolysis. Here, we show that succinate dehydrogenase (SDH) is required for maintenance of myocardial homeostasis of FAO/glycolysis. Mice with cardiomyocyte-restricted deletion of subunit b or c of SDH developed a dilated cardiomyopathy and heart failure. Hypertrophied hearts displayed a decrease in FAO, while glucose uptake and glycolysis were augmented, which was reversed by enforcing FAO fuels via a high-fat diet, which also improved heart failure of mutant mice. SDH-deficient hearts exhibited an increase in genome-wide DNA methylation associated with accumulation of succinate, a metabolite known to inhibit DNA demethylases, resulting in changes of myocardial transcriptomic landscape. Succinate induced DNA hypermethylation and depressed the expression of FAO genes in myocardium, leading to imbalanced FAO/glycolysis. Inhibition of succinate by α-ketoglutarate restored transcriptional profiles and metabolic disorders in SDH-deficient cardiomyocytes. Thus, our findings reveal the essential role for SDH in metabolic remodeling of failing hearts, and highlight the potential of therapeutic strategies to prevent cardiac dysfunction in the setting of SDH deficiency.
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Affiliation(s)
- Wenwen Li
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Li Quan
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
| | - Kun Peng
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
| | - Yanru Wang
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
| | - Xianhua Wang
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
- Research Unit of Mitochondria in Brain Diseases, Chinese Academy of Medical Sciences, PKU-Nanjing Institute of Translational Medicine, Nanjing, China
| | - Quan Chen
- College of Life Sciences, Nankai University, Tianjin, China
| | - Heping Cheng
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
- Research Unit of Mitochondria in Brain Diseases, Chinese Academy of Medical Sciences, PKU-Nanjing Institute of Translational Medicine, Nanjing, China
| | - Qi Ma
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China.
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11
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Jiang K, Gong T, Quan L. A medical unsupervised domain adaptation framework based on Fourier transform image translation and multi-model ensemble self-training strategy. Int J Comput Assist Radiol Surg 2023; 18:1885-1894. [PMID: 37010674 DOI: 10.1007/s11548-023-02867-5] [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: 09/30/2022] [Accepted: 03/03/2023] [Indexed: 04/04/2023]
Abstract
PURPOSE Well-established segmentation models will suffer performance degradation when deployed on data with heterogeneous features, especially in the field of medical image analysis. Although researchers have proposed many approaches to address this problem in recent years, most of them are feature-adaptation-based adversarial networks, the problems such as training instability often arise in adversarial training. To ameliorate this challenge and improve the robustness of processing data with different distributions, we propose a novel unsupervised domain adaptation framework for cross-domain medical image segmentation. METHODS In our proposed approach, Fourier transform guided images translation and multi-model ensemble self-training are integrated into a unified framework. First, after Fourier transform, the amplitude spectrum of source image is replaced with that of target image, and reconstructed by the inverse Fourier transform. Second, we augment target dataset with the synthetic cross-domain images, performing supervised learning using the original source set labels while implementing regularization by entropy minimization on predictions of unlabeled target data. We employ several segmentation networks with different hyperparameters simultaneously, pseudo-labels are generated by averaging their outputs and comparing to confidence threshold, and gradually optimize the quality of pseudo-labels through multiple rounds self-training. RESULTS We employed our framework to two liver CT datasets for bidirectional adaptation experiments. In both experiments, compared to the segmentation network without domain alignment, dice similarity coefficient (DSC) increased by nearly 34% and average symmetric surface distance (ASSD) decreased by about 10. The DSC values were also improved by 10.8% and 6.7%, respectively, compared to the existing model. CONCLUSION We propose a Fourier transform-based UDA framework, the experimental results and comparisons demonstrate that the proposed method can effectively diminish the performance degradation caused by domain shift and performs best on the cross-domain segmentation tasks. Our proposed multi-model ensemble training strategy can also improve the robustness of the segmentation system.
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Affiliation(s)
- Kaida Jiang
- College of Information Science and Technology, Donghua University, Shanghai, China
| | - Tao Gong
- College of Information Science and Technology, Donghua University, Shanghai, China.
| | - Li Quan
- College of Information Science and Technology, Donghua University, Shanghai, China
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12
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Ma C, Xue T, Peng Q, Zhang J, Guan J, Ding W, Li Y, Xia P, Zhou L, Zhao T, Wang S, Quan L, Li CY, Liu Y. A novel N 6-Deoxyadenine methyltransferase METL-9 modulates C. elegans immunity via dichotomous mechanisms. Cell Res 2023; 33:628-639. [PMID: 37271765 PMCID: PMC10397248 DOI: 10.1038/s41422-023-00826-y] [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: 10/27/2022] [Accepted: 05/09/2023] [Indexed: 06/06/2023] Open
Abstract
N6-Methyldeoxyadenine (6mA) has been rediscovered as a DNA modification with potential biological function in metazoans. However, the physiological function and regulatory mechanisms regarding the establishment, maintenance and removal of 6mA in eukaryotes are still poorly understood. Here we show that genomic 6mA levels change in response to pathogenic infection in Caenorhabditis elegans (C. elegans). We further identify METL-9 as the methyltransferase that catalyzes DNA 6mA modifications upon pathogen infection. Deficiency of METL-9 impairs the induction of innate immune response genes and renders the animals more susceptible to pathogen infection. Interestingly, METL-9 functions through both 6mA-dependent and -independent mechanisms to transcriptionally regulate innate immunity. Our findings reveal that 6mA is a functional DNA modification in immunomodulation in C. elegans.
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Affiliation(s)
- Chengchuan Ma
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
- Beijing Advanced Innovation Center for Genomics, Beijing, China.
- Research Center for Stem Cell and Regenerative Medicine, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China.
| | - Tingling Xue
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Qi Peng
- Laboratory of Bioinformatics and Genomic Medicine, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Jie Zhang
- Laboratory of Bioinformatics and Genomic Medicine, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Jialiang Guan
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- PKU-Tsinghua-NIBS Graduate Program, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Wanqiu Ding
- Laboratory of Bioinformatics and Genomic Medicine, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Yi Li
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Peixue Xia
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Liankui Zhou
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Tianyu Zhao
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Sheng Wang
- Shanghai Zelixir Biotech Company Ltd., Shanghai, China
| | - Li Quan
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China
| | - Chuan-Yun Li
- Laboratory of Bioinformatics and Genomic Medicine, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
| | - Ying Liu
- State Key Laboratory of Membrane Biology, New Cornerstone Science Laboratory, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
- Beijing Advanced Innovation Center for Genomics, Beijing, China.
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13
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Ma R, Quan L, Aleteng QQG, Li L, Zhu J, Jiang S. The impact of sitagliptin in palmitic acid-induced insulin resistance in human HepG2 cells through the suppressor of cytokine signaling 3/phosphoinositide 3-kinase/protein kinase B pathway. J Physiol Pharmacol 2023; 74. [PMID: 37453092 DOI: 10.26402/jpp.2023.2.04] [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] [Received: 10/31/2022] [Accepted: 04/30/2023] [Indexed: 07/18/2023]
Abstract
Patients with type 2 diabetes respond differently to sitagliptin, an oral anti-hyperglycemic medication. Patients whose blood sugar levels were effectively managed while using sitagliptin had significantly lower levels of a protein called suppressor of cytokine signaling 3 (SOCS3), according to our earlier research. In this study, we established an in vitro insulin resistance cell model for human HepG2 cells to investigate the possible mechanism of the effect of sitagliptin on glucose metabolism via the SOCS3/phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway. Since insulin resistance first develops in the liver, palmitic acid was used to generate an insulin resistance cell model in human HepG2 cells, after which small interfering ribonucleic acid (siRNA)-SOCS3 and sitagliptin were used to intervene. We then examined the changes in cell viability and biochemical indices in the insulin resistance cell model. SOCS3, Akt, and glycogen synthase kinase 3beta (GSK-3β) gene expression levels were quantified using reverse transcription-polymerase chain reaction, and the protein expression levels of SOCS3, Akt, phosphorylated Akt (p-Akt), GSK-3β, and phosphorylated GSK-3β (p-GSK-3β) were quantified using Western blot. In results: the expression of the SOCS3 gene was considerably raised in both the insulin resistance model group and the insulin resistance model + siRNA-negative control group, but decreased following treatment with sitagliptin. After sitagliptin intervention, the protein expression of Akt, p-Akt, and p-GSK-3β were dramatically decreased in the model group, while SOCS3 was significantly decreased. We conclude that sitagliptin can reduce insulin resistance by downregulating SOCS3 and regulating glucose metabolism in a hypoglycemic manner.
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Affiliation(s)
- R Ma
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - L Quan
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Q-Q-G Aleteng
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - L Li
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - J Zhu
- Department of Endocrinology, People's Hospital of Shenzhen Baoan District, Shenzhen, Guangdong, China.
| | - S Jiang
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China.
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14
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Quan L, Moreno-Gonzalez I, Xie Z, Gamez N, Vegas-Gomez L, Song Q, Gu J, Lin W, Gomez-Gutierrez R, Wu T. A near-infrared probe for detecting and interposing amyloid beta oligomerization in early Alzheimer's disease. Alzheimers Dement 2023; 19:456-466. [PMID: 35436382 DOI: 10.1002/alz.12673] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND The misfolding and deposition of amyloid beta (Aβ) in human brain is the main hallmark of Alzheimer's disease (AD) pathology. One of the drivers of Alzheimer´s pathogenesis is the production of soluble oligomeric Aβ, which could potentially serve as a biomarker of AD. METHODS Given that the diphenylalanine (FF) at the C-terminus of Aβ fragments plays a key role in inducing the AD pathology, based on the hydrophobic structure of FF, we synthesized a near-infrared BF2-dipyrrolmethane fluorescent imaging probe (NB) to detect both soluble and insoluble Aβ. RESULTS We found that NB not only binds Aβ, particularly oligomeric Aβ, but also interposes self-assembly of Aβ through π-π interaction between NB and FF. CONCLUSION This work holds great promise in the early detection of AD and may also provide an innovative approach to decelerate and even halt AD onset and progression.
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Affiliation(s)
- Li Quan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu Province, China.,Department of Biomedical Engineering, University of Houston, Houston, Texas, USA
| | - Ines Moreno-Gonzalez
- The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Department of Cell Biology, Genetic and Physiology, Faculty of Sciences, Instituto de Investigacion Biomedica de Malaga-IBIMA, Spain.,Networking Research Center on Neurodegenerative Diseases (CIBERNED), University of Malaga, Malaga, Spain
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Nazaret Gamez
- The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Department of Cell Biology, Genetic and Physiology, Faculty of Sciences, Instituto de Investigacion Biomedica de Malaga-IBIMA, Spain
| | - Laura Vegas-Gomez
- Department of Cell Biology, Genetic and Physiology, Faculty of Sciences, Instituto de Investigacion Biomedica de Malaga-IBIMA, Spain
| | - Qinyong Song
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu Province, China
| | - Jianhua Gu
- Electron Microscopy Core, Houston Methodist Research Institute, Houston, Texas, USA
| | - Wenhai Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Ruben Gomez-Gutierrez
- The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Department of Cell Biology, Genetic and Physiology, Faculty of Sciences, Instituto de Investigacion Biomedica de Malaga-IBIMA, Spain
| | - Tianfu Wu
- Department of Biomedical Engineering, University of Houston, Houston, Texas, USA
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15
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Xie X, Ma W, Li G, Zhan Y, Quan L, Cai X. Tetrahedral framework nucleic acids alleviate irradiation-induced salivary gland damage. Cell Prolif 2022; 56:e13381. [PMID: 36514865 PMCID: PMC10068950 DOI: 10.1111/cpr.13381] [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: 11/03/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
In this study, we investigated the role of tetrahedral framework nucleic acids (tFNAs) in irradiation-induced salivary gland damage in vitro and in vivo. Irradiation-damaged submandibular gland cells (SMGCs) were treated with different concentrations of tFNAs. Cell activity was measured by CCK-8 assay. Cell death was detected by Calcein-AM/PI double staining. Cell apoptosis was assessed by flow cytometry. The expression of apoptosis proteins and inflammatory cytokines were detected by western blot. Body weight, drinking volume, saliva flow rate and lag time was measured 8 weeks after irradiation. Micromorphological changes of submandibular gland were assessed by haematoxylin-eosin and masson staining. Cell proliferation, apoptosis and microvessel density of submandibular gland were evaluated by immunohistochemical staining. tFNAs could promote cell proliferation, inhibit cell apoptosis of irradiation-damaged SMGCs and reduce irradiation induced cell death. Mechanism studies revealed that tFNAs inhibited cell apoptosis through regulating the Bcl-2/Bax/Caspase-3 signalling pathway and inhibited the release of TNF-α, IL-1β and IL-6 to reduce cell damage caused by inflammation. Animal experiments showed that tFNAs could alleviate irradiation-induced weight loss, increased water intake, decreased saliva production and prolonged salivation lag time and could ameliorate salivary gland damage. tFNAs have a positive effect on alleviating irradiation-induced salivary gland damage and might be a promising agent for the treatment of this disease.
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Affiliation(s)
- Xueping Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Guo Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxi Zhan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li Quan
- China West Normal University, Nanchong, China.,Sichuan Inspection and Testing Center for Dental Devices and Materials, Ziyang, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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16
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Alshehri S, Pavlovič T, Farsinejad S, Behboodi P, Quan L, Centeno D, Kung D, Rezler M, Lee W, Jasiński P, Dziabaszewska E, Nowak-Markwitz E, Kalyon D, Zaborowski MP, Iwanicki M. Extracellular Matrix Modulates Outgrowth Dynamics in Ovarian Cancer. Adv Biol (Weinh) 2022; 6:e2200197. [PMID: 36084257 PMCID: PMC9772079 DOI: 10.1002/adbi.202200197] [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: 07/15/2022] [Revised: 08/18/2022] [Indexed: 01/28/2023]
Abstract
Ovarian carcinoma (OC) forms outgrowths that extend from the outer surface of an afflicted organ into the peritoneum. OC outgrowth formation is poorly understood due to the limited availability of cell culture models examining the behavior of cells that form outgrowths. Prompted by immunochemical evaluation of extracellular matrix (ECM) components in human tissues, laminin and collagen-rich ECM-reconstituted cell culture models amenable to studies of cell clusters that can form outgrowths are developed. It is demonstrated that ECM promotes outgrowth formation in fallopian tube non-ciliated epithelial cells (FNE) expressing mutant p53 and various OC cell lines. Outgrowths are initiated by cells that underwent outward translocation and retained the ability to intercalate into mesothelial cell monolayers. Electron microscopy, optical coherence tomography, and small amplitude oscillatory shear experiments reveal that increased ECM levels led to increased fibrous network thickness and high shear elasticity of the microenvironment. These physical characteristics are associated with outgrowth suppression. The low ECM microenvironment mimicks the viscoelasticity of malignant peritoneal fluid (ascites) and supports cell proliferation, cell translocation, and outgrowth formation. These results highlight the importance of the ECM microenvironment in modulating OC growth and can provide additional insights into the mode of dissemination of primary and recurrent ovarian tumors.
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Affiliation(s)
- Sarah Alshehri
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Tonja Pavlovič
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Sadaf Farsinejad
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Panteha Behboodi
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Li Quan
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Daniel Centeno
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Douglas Kung
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Marta Rezler
- Poznań University of Medical Sciences, Poznań, Poland
| | - Woo Lee
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Piotr Jasiński
- Department of Pathology, Poznań University of Medical Sciences, Poznań, Poland
| | | | - Ewa Nowak-Markwitz
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznań University of Medical Sciences, Poznań, Poland
| | - Dilhan Kalyon
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Mikołaj P. Zaborowski
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznań University of Medical Sciences, Poznań, Poland
| | - Marcin Iwanicki
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
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Zhao Q, Yin K, Zhou N, Wu Q, Xiao Y, Zheng J, Zheng D, Bi Q, Quan L, Hu B, Cheng J. The characteristics of thoracic aortic dissection in autopsy-diagnosed individuals: An autopsy study. Front Cardiovasc Med 2022; 9:973530. [PMID: 36304553 PMCID: PMC9592848 DOI: 10.3389/fcvm.2022.973530] [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: 06/20/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Thoracic aortic dissection (TAD) is the most common cause of sudden cardiac death associated with aortic diseases. The age of TAD victims in forensic studies is significantly younger than hospitalized patients with TAD, while only a few studies have been conducted on autopsy-diagnosed TAD deceased. A retrospective study was conducted at the Medicolegal Center of Sun Yat-sen University from 1999 to 2019 to address the characteristics of TAD victims. A total of 200 deceased from spontaneous rupture of TAD were assessed, with 165 (82.5%) males and 175 (87.5%) Stanford type A deceased. Our main results showed that compared with patients with TAD diagnosed during their lifetime, individuals diagnosed with TAD until an autopsy showed an earlier onset (43.80 years old) and less accompanied hypertension (<50%). Sudden death was the initial symptom of 32 decedents. Instead of chest/back pain (40 decedents), abdominal pain (59 decedents) was the most common initial symptom, and 42 decedents presented with no accompanying pain. A higher proportion of abdominal pain and the painless symptom was associated with a higher risk of misdiagnosis. Women showed a more atypical clinical presentation and rapid progression than men. Younger decedents showed more pronounced left heart changes. The present study implicated the TAD individuals diagnosed until an autopsy as a particular entity, indicating the urgent need for further investigation on early diagnosis and pathogenesis of patients with TAD with atypical pain and painless or with younger age to reduce the burden of TAD-related sudden death.
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Affiliation(s)
- Qianhao Zhao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Kun Yin
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Nan Zhou
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Qiuping Wu
- Division of Forensic Medicine, Department of Pathology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yuxi Xiao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Jinxiang Zheng
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China,Henan Key Laboratory of Molecular Pathology, Zhengzhou, China
| | - Da Zheng
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Qiming Bi
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Li Quan
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China
| | - Bingjie Hu
- Division of Forensic Medicine, Department of Pathology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China,*Correspondence: Bingjie Hu
| | - Jianding Cheng
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-Sen University, Guangzhou, China,Jianding Cheng
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Quan L, Liu Y, Cui W, Wang X, Zhang W, Wang Z, Guo C, Lu C, Hu F, Chen X. The associations between serum high-density lipoprotein cholesterol levels and malignant behavior in pancreatic neuroendocrine neoplasms. Lipids Health Dis 2022; 21:58. [PMID: 35842659 PMCID: PMC9287928 DOI: 10.1186/s12944-022-01669-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/30/2022] [Accepted: 07/04/2022] [Indexed: 02/07/2023] Open
Abstract
Background The role of serum high-density lipoprotein cholesterol (HDL-c) in tumorigenesis are observed in several endocrine-related cancers. However, its role in pancreatic neuroendocrine neoplasms (PNENs) has not been understood. In the current study, the relationship between HDL-c levels and malignant behavior in PNENs was explored. Methods One hundred ninety-seven patients with histopathology confirmed PNENs were included. PNENs were divided into three grades (G1, G2 and G3) as 2017 WHO classification based on ki67 index and mitosis count. The demographic data, clinical information, tumor morphological and pathological features (organs invasion, lymph node metastasis, vascular invasion and perineural invasion), and serum tumor biomarkers were collected. The relationships between HDL-c levels and malignant behaviors in PNENs were analyzed using logistic regression analysis. Models were also developed for the identification of high grade PNENs. Results The levels of serum HDL-c in G2/G3 tumor were significantly lower than that in G1 tumor (P = 0.031). However, no such difference was found between G3 and G1/G2. The proportions of low HDL-c (≤ 0.9 mmol/L) were higher in high-grade PNENs (G2/G3 or G3) than those in low-grade (G1 or G1/G2) (29.0 vs 15.2%, P = 0.032; 37.0 vs 20.5%, P = 0.023). The risk of G2/G3 tumors in patients with high serum HDL-c levels was decreased (odds ratio (OR) = 0.35, 95% confidence interval (CI): 0.12–0.99). Similarly, the risk of G3 PNENs increased in patients with low HDL-c levels (OR = 2.51, 95%CI:1.12–5.60). HDL-c level was also associated with a high ki67 index (> 55%) (OR = 0.10, 95%CI: 0.02–0.51) and neuroendocrine carcinoma G3 (OR = 0.21, 95%CI: 0.06–0.80). The area under the curve (AUC) of HDL-c + tumor size + age was 0.85 (95% CI: 0.79–0.91) in identifying G2/G3 PNENs, and HDL-c (> 0.9 mmol/L) + tumor size + age had an AUC of 0.77 (95% CI: 0.70–0.84) in identifying G3 PNENs. HDL-c level was associated with lymph node metastasis (OR = 0.24, 95%CI:0.08–0.99). Conclusion Serum HDL-c levels were significantly associated with malignant behaviors in PNENs, in particular to tumor grade and lymph node metastasis.
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Affiliation(s)
- Li Quan
- Department of Laboratory Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Yongkang Liu
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Wenjing Cui
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Xinru Wang
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Weixiao Zhang
- Department of Radiology, Nanjing Sir Run Run Hospital, Nanjing Medical University, 210029, Nanjing, China
| | - Zhongqiu Wang
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Chuangen Guo
- Department of Radiology, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Chao Lu
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China.
| | - Feixiang Hu
- Department of Radiology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Xiao Chen
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China. .,Institute of Radiation Medicine, Fudan University, Shanghai, 200032, China.
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19
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Shao X, Hu Z, Zhan Y, Ma W, Quan L, Lin Y. Featured Cover. Cell Prolif 2022. [DOI: 10.1111/cpr.13307] [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: 11/30/2022] Open
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Shao X, Hu Z, Zhan Y, Ma W, Quan L, Lin Y. MiR‐26a‐tetrahedral
framework nucleic acids mediated osteogenesis of adipose‐derived mesenchymal stem cells. Cell Prolif 2022; 55:e13272. [PMID: 35661456 PMCID: PMC9251048 DOI: 10.1111/cpr.13272] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/02/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Objectives Delivery systems that provide time and space control have a good application prospect in tissue regeneration applications, as they can effectively improve the process of wound healing and tissue repair. In our experiments, we constructed a novel micro‐RNA delivery system by linking framework nucleic acid nanomaterials to micro‐RNAs to promote osteogenic differentiation of mesenchymal stem cells. Materials and Methods To verify the successful preparation of tFNAs–miR‐26a, the size of tFNAs–miR‐26a were observed by non‐denaturing polyacrylamide gel electrophoresis and dynamic light scattering techniques. The expression of osteogenic differentiation‐related genes and proteins was investigated by confocal microscope, PCR and western blot to detect the impact of tFNAs–miR‐26a on ADSCs. And finally, Wnt/β‐catenin signaling pathway related proteins and genes were detected by confocal microscope, PCR and western blot to study the relevant mechanism. Results By adding this novel complex, the osteogenic differentiation ability of mesenchymal stem cells was significantly improved, and the expression of alkaline phosphatase (ALP) on the surface of the cell membrane and the formation of calcium nodules in mesenchymal stem cells were significantly increased on days 7 and 14 of induction of osteogenic differentiation, respectively. Gene and protein expression levels of ALP (an early marker associated with osteogenic differentiation), RUNX2 (a metaphase marker), and OPN (a late marker) were significantly increased. We also studied the relevant mechanism of action and found that the novel nucleic acid complex promoted osteogenic differentiation of mesenchymal stem cells by activating the canonical Wnt signaling pathway. Conclusions This study may provide a new research direction for the application of novel nucleic acid nanomaterials in bone tissue regeneration.
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Affiliation(s)
- Xiaoru Shao
- Department of Stomatology Affiliated Hospital of Jining Medical University Jining Shandong China
- College of TCM, Shandong University of Traditional Chinese Medicine Jinan Shandong China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
| | - Zhong Hu
- Department of Stomatology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Yuxi Zhan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
| | - Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
| | - Li Quan
- Business College China West Normal University Nanchong Sichuan China
- Sichuan Inspection and Testing Center for Dental Devices and Materials Ziyang Sichuan China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu Sichuan China
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Du J, Zheng L, Gao P, Yang H, Yang WJ, Guo F, Liang R, Feng M, Wang Z, Zhang Z, Bai L, Bu Y, Xing S, Zheng W, Wang X, Quan L, Hu X, Wu H, Chen Z, Chen L, Wei K, Zhang Z, Zhu X, Zhang X, Tu Q, Zhao SM, Lei X, Xiong JW. A small-molecule cocktail promotes mammalian cardiomyocyte proliferation and heart regeneration. Cell Stem Cell 2022; 29:545-558.e13. [PMID: 35395187 DOI: 10.1016/j.stem.2022.03.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 01/28/2022] [Accepted: 03/15/2022] [Indexed: 01/07/2023]
Abstract
Zebrafish and mammalian neonates possess robust cardiac regeneration via the induction of endogenous cardiomyocyte (CM) proliferation, but adult mammalian hearts have very limited regenerative potential. Developing small molecules for inducing adult mammalian heart regeneration has had limited success. We report a chemical cocktail of five small molecules (5SM) that promote adult CM proliferation and heart regeneration. A high-content chemical screen, along with an algorithm-aided prediction of small-molecule interactions, identified 5SM that efficiently induced CM cell cycle re-entry and cytokinesis. Intraperitoneal delivery of 5SM reversed the loss of heart function, induced CM proliferation, and decreased cardiac fibrosis after rat myocardial infarction. Mechanistically, 5SM potentially targets α1 adrenergic receptor, JAK1, DYRKs, PTEN, and MCT1 and is connected to lactate-LacRS2 signaling, leading to CM metabolic switching toward glycolysis/biosynthesis and CM de-differentiation before entering the cell-cycle. Our work sheds lights on the understanding CM regenerative mechanisms and opens therapeutic avenues for repairing the heart.
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Affiliation(s)
- Jianyong Du
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China; PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Lixia Zheng
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China; PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Peng Gao
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Hang Yang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wan-Jie Yang
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Fusheng Guo
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Ruqi Liang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Mengying Feng
- Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Zihao Wang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Zongwang Zhang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Linlu Bai
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Ye Bu
- PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | - Shijia Xing
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Wen Zheng
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Xuelian Wang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Li Quan
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Xinli Hu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Haosen Wu
- Division of Cardiac Surgery, the Third Hospital of Peking University, Beijing 100083, China
| | - Zhixing Chen
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Liangyi Chen
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China
| | - Ke Wei
- Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Zhe Zhang
- Division of Cardiac Surgery, the Third Hospital of Peking University, Beijing 100083, China
| | - Xiaojun Zhu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China; PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China
| | | | - Qiang Tu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shi-Min Zhao
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China.
| | - Jing-Wei Xiong
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, College of Future Technology, Academy for Advanced Interdisciplinary Studies, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100871, China; PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China.
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Jiang K, Quan L, Gong T. Disentangled representation and cross-modality image translation based unsupervised domain adaptation method for abdominal organ segmentation. Int J Comput Assist Radiol Surg 2022; 17:1101-1113. [PMID: 35301702 DOI: 10.1007/s11548-022-02590-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 03/02/2022] [Indexed: 11/05/2022]
Abstract
PURPOSE Existing medical image segmentation models tend to achieve satisfactory performance when the training and test data are drawn from the same distribution, while they often produce significant performance degradation when used for the evaluation of cross-modality data. To facilitate the deployment of deep learning models in real-world medical scenarios and to mitigate the performance degradation caused by domain shift, we propose an unsupervised cross-modality segmentation framework based on representation disentanglement and image-to-image translation. METHODS Our approach is based on a multimodal image translation framework, which assumes that the latent space of images can be decomposed into a content space and a style space. First, image representations are decomposed into the content and style codes by the encoders and recombined to generate cross-modality images. Second, we propose content and style reconstruction losses to preserve consistent semantic information from original images and construct content discriminators to match the content distributions between source and target domains. Synthetic images with target domain style and source domain anatomical structures are then utilized for training of the segmentation model. RESULTS We applied our framework to the bidirectional adaptation experiments on MRI and CT images of abdominal organs. Compared to the case without adaptation, the Dice similarity coefficient (DSC) increased by almost 30 and 25% and average symmetric surface distance (ASSD) dropped by 13.3 and 12.2, respectively. CONCLUSION The proposed unsupervised domain adaptation framework can effectively improve the performance of cross-modality segmentation, and minimize the negative impact of domain shift. Furthermore, the translated image retains semantic information and anatomical structure. Our method significantly outperforms several competing methods.
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Affiliation(s)
- Kaida Jiang
- College of Information Science and Technology, Donghua University, Shanghai, China
| | - Li Quan
- College of Information Science and Technology, Donghua University, Shanghai, China
| | - Tao Gong
- College of Information Science and Technology, Donghua University, Shanghai, China.
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Liu W, Chen S, Chen J, Jiang T, Quan L, Xie S. Application of multimodal imaging in the diagnosis of intrahepatic splenosis: Two case reports and a literature review. BJR Case Rep 2022; 8:20210170. [PMID: 36177256 PMCID: PMC9499435 DOI: 10.1259/bjrcr.20210170] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 11/29/2022] Open
Abstract
Intrahepatic splenosis is quite rare and is often misdiagnosed as other lesions. We present two cases of intrahepatic splenosis examined with hepatobiliary contrast agents, intravoxel incoherent motion diffusion-weighted imaging and magnetic resonance elastography. We discuss various imaging modalities and the roles of various magnetic resonance imaging methods in diagnosis. We also discuss the differentiating features that allow the correct diagnosis to be made and provide a brief review of the literature.
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Affiliation(s)
- Weimin Liu
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Simin Chen
- Department of Radiology, Zhao Qing City Gao Yao District People’s Hospital, Zhaoqing, China
| | - Jianning Chen
- Department of Pathology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ting Jiang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Li Quan
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sidong Xie
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhao Y, Song Q, Lin Y, Chu F, Wei Y, Liu S, Pan C, Quan L, Wang Y. Improving the photostability of fluorescent dyes by polymer nano‐insulating layer. J Appl Polym Sci 2022. [DOI: 10.1002/app.51625] [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: 11/09/2022]
Affiliation(s)
- Yingshi Zhao
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Qinyong Song
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Yuebin Lin
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Feng Chu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences Nanjing University Nanjing China
| | - Yanchun Wei
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Sen Liu
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Changjiang Pan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Li Quan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices Huaiyin Institute of Technology Huai'an Jiangsu People's Republic of China
| | - Yiqing Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences Nanjing University Nanjing China
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An X, Quan L, Liu J, Tang Q, Lan H, Liu H. Mo,Fe-codoped metal phosphide nanosheets derived from Prussian blue analogues for efficient overall water splitting. J Colloid Interface Sci 2022; 615:456-464. [PMID: 35150953 DOI: 10.1016/j.jcis.2022.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/17/2022]
Abstract
Designing non-precious electrocatalysts with multiple active centers and durability toward overall water splitting is of great significance for storing renewable energy. This study reports a low-cost Mo, Fe codoped NiCoPx electrocatalysts derived from Co-Fe Prussian blue analogue and following phosphorization process. Benefitted from the optimized electronic configuration, hierarchical structure and abundant active sites, the Mo,Fe-NiCoPx/NF electrode has shown competitive oxygen evolution reaction (ƞ10 = 197 mV) and hydrogen evolution reaction performance (ƞ10 = 99 mV) when the current density is 10 mA cm-2 in 1 M KOH solution. Moreover, the integrated water splitting device assembled by Mo,Fe-NiCoPx/NF as both anode and cathode only needs a voltage of 1.545 V to reach 10 mA cm-2. Density functional theory results further confirm that the Mo, Fe codoped heterostructure can synergistically optimize the d-band center and Gibbs free energy during electrocatalytic processes, thus accelerating the kinetics of electrochemical water splitting. This work demonstrates the importance of rational combination of metal doping and interface engineering for advanced catalytic materials.
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Affiliation(s)
- Xiaoqiang An
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jianqiao Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Qingwen Tang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huachun Lan
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Huijuan Liu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
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Quan L, Yunzhi G, Huiying W. Investigation of pyrolysed anthracite as an anode material for sodium ion batteries. NEW J CHEM 2022. [DOI: 10.1039/d2nj01258h] [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: 11/21/2022]
Abstract
Due to the increasingly serious problems of the greenhouse effect and environmental pollution caused by the continuous consumption of traditional fossil energy, renewable and clean energy (such as solar energy and wind energy) is facing new opportunities and challenges.
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Affiliation(s)
- Li Quan
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, No. 26, Hexing Road, 150040, Harbin, China
| | - Gao Yunzhi
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, No. 92, Xidazhi Street, 150001, Harbin, China
| | - Wen Huiying
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, No. 26, Hexing Road, 150040, Harbin, China
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Liu S, Shen C, Qian C, Wang J, Yang Z, Wei Y, Quan L, Pan C, Hu Y, Ye W. Tumor Cell Distinguishable Nanomedicine Integrating Chemotherapeutic Sensitization and Protection. Front Bioeng Biotechnol 2021; 9:773021. [PMID: 34858963 PMCID: PMC8631718 DOI: 10.3389/fbioe.2021.773021] [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: 09/09/2021] [Accepted: 10/14/2021] [Indexed: 11/14/2022] Open
Abstract
Theoretically, with a high enough drug dosage, cancer cells could be eliminated. However, the dosages that can be administered are limited by the therapeutic efficacy and side effects of the given drug. Herein, a nanomedicine integrating chemotherapeutic sensitization and protection was developed to relieve the limitation of administration dosage and to improve the efficacy of chemotherapy. The nanomedicine was endowed with the function of synergistically controlled release of CO and drugs under near-infrared (NIR) light irradiation. CO photo-induced release system (COPIRS) was synthesized by constructing an electron excitation–electron transfer group–electron-induced CO release structure and was used as the hydrophobic part, and then hydrophilic polymer (polyethylene glycol; PEG) was introduced by a thermal-responsive groups (DA group), forming a near-infrared-induced burst-release nanocarrier. In vitro and in vivo experiments showed that the nanomedicine can distinguish between tumor and normal cells and regulates the resistance of these different cells through the controlled release of carbonic oxide (CO), simultaneously enhancing the efficacy of chemotherapy drugs on tumor cells and chemotherapeutic protection on normal cells. This strategy could solve the current limitations on dosages due to toxicity and provide a solution for tumor cure by chemotherapy.
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Affiliation(s)
- Sen Liu
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China.,Institute of Materials Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Can Shen
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Cheng Qian
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Jianquan Wang
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Zhongmei Yang
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Yanchun Wei
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Li Quan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Changjiang Pan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Yong Hu
- Institute of Materials Engineering, Collaborative Innovation Center of Chemistry for Life Sciences, College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Wei Ye
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huaian, China
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28
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Quan L, Hu L, Wang J, Yuwen B, Zhu J, Jiang S. Relationship between sex hormone-binding globulin level and blood glucose in middle-aged and elder males of Uygur ethnic group. Neuro Endocrinol Lett 2021; 42:403-407. [PMID: 34713693] [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] [Received: 04/14/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To investigate the relationship between sex hormone-binding globulin (SHBG) and blood glucose in elder men of Uygur ethnic group. METHODS A total of 467 males of ugyur ethnic group resident in Urumqi, Tuokesun County, and Turpan were included by cluster sampling, classified by ages and SHBG level, and compared the metabolic index to define the risk factors by regression. RESULTS BMI, waist circumference (WC), glycosylated hemoglobin (GH), fasting insulin level (FIL), SHBG, testosterone, free testosteroneindex (FAI), and HOMA-IR were statistically different in different age groups (P<0.05); the differences in the age, BMI, WC, fasting blood glucose (FBG), OGTT 2-hr blood glucose, HOMA-IR, FIL, GH, testosterone, and F among the study subjects grouped according to SHBG level were statistically significant (P<0.05); the logistic regression analysis revealed that FIL and testosterone were the independent factors that will affect SHBG in the models using FIL, HOMA-IR, and other indexes with statistical significance as the continuous variables and the interquartile grouping of SHBG as the independent variables. CONCLUSIONS Among middle-aged and elder males, there are differences in the sex hormone and SHBG levels. The independent influencing factors of SHBG are HOMA-IR, testosterone, and FIL.
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Affiliation(s)
- Li Quan
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Lin Hu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Jing Wang
- Department of Rheumatology, the Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Binya Yuwen
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Jun Zhu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Sheng Jiang
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
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Guo W, Wang S, Zhang X, Shi M, Duan F, Hao J, Gu K, Quan L, Wu Y, Liang Z, Wang Y. Acidic pH transiently prevents the silencing of self-renewal and dampens microRNA function in embryonic stem cells. Sci Bull (Beijing) 2021; 66:1319-1329. [PMID: 36654154 DOI: 10.1016/j.scib.2021.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/18/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023]
Abstract
Enhanced glycolysis is a distinct feature associated with numerous stem cells and cancer cells. However, little is known about its regulatory roles in gene expression and cell fate determination. Here, we confirm that glycolytic metabolism and lactate production decrease during the differentiation of mouse embryonic stem cells (mESCs). Importantly, acidic pH due to lactate accumulation can transiently prevent the silencing of mESC self-renewal in differentiation conditions. Furthermore, acidic pH partially blocks the differentiation of human ESCs (hESCs). Mechanistically, acidic pH downregulates AGO1 protein and de-represses a subset of mRNA targets of miR-290/302 family of microRNAs which facilitate the exit of naive pluripotency state in mESCs. Interestingly, AGO1 protein is also downregulated by acidic pH in cancer cells. Altogether, this study provides insights into the potential function and underlying mechanism of acidic pH in pluripotent stem cells (PSCs).
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Affiliation(s)
- Wenting Guo
- Department of 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, Beijing 100730, China; Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China.
| | - Shaohua Wang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Xiaoshan Zhang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Ming Shi
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Feifei Duan
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Jing Hao
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Kaili Gu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Li Quan
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Yixia Wu
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Zhiyong Liang
- Department of Pathology, Molecular Pathology Research Centre, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yangming Wang
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing 100871, China.
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30
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Quan L, Li S, Zhao Z, Liu J, Ran Y, Cui J, Lin W, Yu X, Wang L, Zhang Y, Ye J. Hierarchically Assembling CoFe Prussian Blue Analogue Nanocubes on CoP Nanosheets as Highly Efficient Electrocatalysts for Overall Water Splitting. Small Methods 2021; 5:e2100125. [PMID: 34927988 DOI: 10.1002/smtd.202100125] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/11/2021] [Indexed: 06/14/2023]
Abstract
Efficient and durable electrocatalysts are highly desirable for overall water splitting. Herein, a facile strategy is demonstrated to rationally construct CoFe Prussian blue analogues (PBA)@CoP cube-on-sheet hierarchical structure by etching reaction with intermediated CoO to form PBA nanocubes. Benefitting from the heterostructured engineering, the as-synthesized CoFe PBA@CoP presents remarkable electrocatalytic performance in 1.0 m KOH, only requiring overpotentials of 100 mV for hydrogen evolution reaction (HER) and 171 mV for oxygen evolution reaction (OER) to reach the 10 mA cm-2 current density with good stability. Extraordinarily enhanced electrocatalytic performance is ascribed to not only the rapid charge transfer of active species, but also the synergistic effect between each component to achieve tuned electronic structure and abundant electrocatalytic active sites. Especially, the assembled two-electrode cell using CoFe PBA@CoP as both cathode and anode delivers the current densities of 10 mA cm-2 at a relatively low cell voltage of 1.542 V, outperforming most of low-cost bifunctional electrocatalysts reported to date. The controllable and versatile strategy will open up an avenue to prepare hybrid films for advanced electrochemical energy storage and conversion.
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Affiliation(s)
- Li Quan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Shuohan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Zhanpeng Zhao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Jianqiao Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Yue Ran
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Jiayi Cui
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Wei Lin
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Xuelian Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
- International Center of Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Lin Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Jinhua Ye
- International Center of Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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Lin Y, Zhang L, Yang Y, Yang M, Hong Q, Chang K, Dai J, Chen L, Pan C, Hu Y, Quan L, Wei Y, Liu S, Yang Z. Loading Gentamicin and Zn 2+ on TiO 2 Nanotubes to Improve Anticoagulation, Endothelial Cell Growth, and Antibacterial Activities. Stem Cells Int 2021; 2021:9993247. [PMID: 34054972 PMCID: PMC8112940 DOI: 10.1155/2021/9993247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 12/05/2022] Open
Abstract
Titanium and its alloys are widely used in blood-contacting implantable and interventional medical devices; however, their biocompatibility is still facing great challenges. In the present study, in order to improve the biocompatibility and antibacterial activities of titanium, TiO2 nanotubes were firstly in situ prepared on the titanium surface by anodization, followed by the introduction of polyacrylic acid (PAA) and gentamicin (GS) on the nanotube surface by layer-by-layer assembly, and finally, zinc ions were loaded on the surface to further improve the bioactivities. The nanotubes displayed excellent hydrophilicity and special nanotube-like structure, which can selectively promote the albumin adsorption, enhance the blood compatibility, and promote the growth of endothelial cells to some degree. After the introduction of PAA and GS, although the superhydrophilicity cannot be achieved, the results of platelet adhesion, cyclic guanosine monophosphate (cGMP) activity, hemolysis rate, and activated partial thromboplastin time (APTT) showed that the blood compatibility was improved, and the blood compatibility was further enhanced after zinc ion loading. On the other hand, the modified surface showed good cytocompatibility to endothelial cells. The introduction of PAA and zinc ions not only promoted the adhesion and proliferation of endothelial cells but also upregulated expression of vascular endothelial growth factor (VEGF) and nitric oxide (NO). The slow and continuous release of GS and Zn2+ over 14 days can significantly improve the antibacterial properties. Therefore, the present study provides an effective method for the surface modification of titanium-based blood-contacting materials to simultaneously endow with good blood compatibility, endothelial growth behaviors, and antibacterial properties.
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Affiliation(s)
- Yuebin Lin
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Li Zhang
- The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Ya Yang
- The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Minhui Yang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Qingxiang Hong
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Keming Chang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Juan Dai
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Lu Chen
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Changjiang Pan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Youdong Hu
- The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Li Quan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Yanchun Wei
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Sen Liu
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Zhongmei Yang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
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32
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Dai YD, Chen YC, Shi RJ, Zheng JP, Ma QQ, Liu SP, Quan L, Luo B. Forensic Analysis of 43 Medical Disputes Caused by Death after Cardiac Surgery. Fa Yi Xue Za Zhi 2021; 37:49-53. [PMID: 33780184 DOI: 10.12116/j.issn.1004-5619.2019.491105] [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] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To explore the causes and characteristics of medical disputes caused by death after cardiac surgery and to analyze the pathological changes after cardiac surgery and the key points of forensic anatomy, thus to provide pathological evidence for clinical diagnosis and treatment of cardiac surgery and judicial appraisal as well as reference for the prevention of medical disputes in such cases. Methods Forensic pathological cases of medical disputes caused by death after cardiac surgery which were accepted by the Center for Medicolegal Expertise of Sun Yat-Sen University from 2013 to 2018 were analyzed retrospectively from aspects such as causes of death, pathological diagnosis, surgery condition, medical misconduct, and so on. Results The causes of death after cardiac surgery of 43 patients were abnormal operation, low cardiac output syndrome, postoperative infection, postoperative thrombosis, and other diseases. Among the 43 cases, there were 18 cases without medical fault while 25 cases had medical fault. Conclusion The medical disputes caused by death after cardiac surgery are closely related to the operative technique and postoperative complications. The causes of medical faults include defects in diagnosis and treatment technique, as well as unfulfillment of duty of care.
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Affiliation(s)
- Y D Dai
- Department of Forensic Pathology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Y C Chen
- Center for Medicolegal Expertise of Sun Yat-Sen University, Guangzhou 510080, China
| | - R J Shi
- Department of Forensic Pathology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - J P Zheng
- Center for Medicolegal Expertise of Sun Yat-Sen University, Guangzhou 510080, China
| | - Q Q Ma
- Center for Medicolegal Expertise of Sun Yat-Sen University, Guangzhou 510080, China
| | - S P Liu
- Department of Forensic Pathology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - L Quan
- Department of Forensic Pathology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - B Luo
- Department of Forensic Pathology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
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Song K, Wei M, Guo W, Quan L, Kang Y, Wu JX, Chen L. Structural basis for human TRPC5 channel inhibition by two distinct inhibitors. eLife 2021; 10:63429. [PMID: 33683200 PMCID: PMC7987348 DOI: 10.7554/elife.63429] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 09/24/2020] [Accepted: 03/05/2021] [Indexed: 02/06/2023] Open
Abstract
TRPC5 channel is a nonselective cation channel that participates in diverse physiological processes. TRPC5 inhibitors show promise in the treatment of anxiety disorder, depression, and kidney disease. However, the binding sites and inhibitory mechanism of TRPC5 inhibitors remain elusive. Here, we present the cryo-EM structures of human TRPC5 in complex with two distinct inhibitors, namely clemizole and HC-070, to the resolution of 2.7 Å. The structures reveal that clemizole binds inside the voltage sensor-like domain of each subunit. In contrast, HC-070 is wedged between adjacent subunits and replaces the glycerol group of a putative diacylglycerol molecule near the extracellular side. Moreover, we found mutations in the inhibitor binding pockets altered the potency of inhibitors. These structures suggest that both clemizole and HC-070 exert the inhibitory functions by stabilizing the ion channel in a nonconductive closed state. These results pave the way for further design and optimization of inhibitors targeting human TRPC5.
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Affiliation(s)
- Kangcheng Song
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Miao Wei
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Wenjun Guo
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Li Quan
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Yunlu Kang
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China
| | - Jing-Xiang Wu
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Lei Chen
- State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, China.,Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
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Quan L, Lee SS, Kalyon DM. Dynamics of the sub-ambient gelation and shearing of solutions of P3HT and P3HT blends towards active layer formation in bulk heterojunction organic solar cells. Soft Matter 2021; 17:1642-1654. [PMID: 33367403 DOI: 10.1039/d0sm01759k] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organic solar cells (OSCs) containing an active layer consisting of a nanostructured blend of a conjugated polymer like poly(3-hexylthiophene) (P3HT) and an electron acceptor have the potential of competing against silicon-based photovoltaic panels. However, this potential is largely unfulfilled first due to interrelated production and stability issues of organic solar cells and second due to the unscalable nature of the generally employed spin coating process used for the fabrication of organic solar cells. Furthermore, alternatives to spin coating, especially relying on continuous polymer processing methods like extrusion and coating, cannot be readily applied due to the typically low shear viscosity and elasticity of polymer solutions making up the active layer. Recently, He et al. have reported that the gelation of P3HT with [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM) under sub-ambient conditions can provide a new route to the processing of the active layers of bulk heterojunction solar cells. Furthermore, increases in power conversion efficiencies (PCEs) of the P3HT/PC60BM active layer were determined to be possible under certain shearing and thermal histories of the P3HT/PC60BM gels. Here oscillatory and steady torsional flows were used to investigate the gel formation dynamics of P3HT with a recently proposed non-fullerene acceptor o-IDTBR under sub-ambient conditions and compared with the gelation behavior of P3HT/PC60BM blends. The rheological material functions as well as the gel strengths defined on the basis of linear viscoelastic material functions, characterized via small-amplitude oscillatory shearing, were observed to be functions of the P3HT and o-IDTBR concentrations, the solvent used and the shearing conditions. Overall, the P3HT gels which formed upon quenching to sub-zero temperatures were found to be stable during small-amplitude oscillatory shear (linear viscoelastic range) but broke down even at the relatively low shear rates associated with steady torsional flows, suggesting that the shearing conditions used during the processing of gels of P3HT and blends of P3HT with small molecule acceptors can alter the gel structure, possibly leading to changes in the resulting active layer performance.
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Affiliation(s)
- Li Quan
- Chemical Engineering and Materials Science, Stevens Institute of Technology, Castle Point St., Hoboken, NJ 07030, USA.
| | - Stephanie S Lee
- Chemical Engineering and Materials Science, Stevens Institute of Technology, Castle Point St., Hoboken, NJ 07030, USA.
| | - Dilhan M Kalyon
- Chemical Engineering and Materials Science, Stevens Institute of Technology, Castle Point St., Hoboken, NJ 07030, USA.
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35
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Jiang P, Ren L, Zhi L, Yu Z, Lv F, Xu F, Peng W, Bai X, Cheng K, Quan L, Zhang X, Wang X, Zhang Y, Yang D, Hu X, Xiao RP. Negative regulation of AMPK signaling by high glucose via E3 ubiquitin ligase MG53. Mol Cell 2021; 81:629-637.e5. [PMID: 33400924 DOI: 10.1016/j.molcel.2020.12.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [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: 03/05/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 02/06/2023]
Abstract
As a master regulator of metabolism, AMP-activated protein kinase (AMPK) is activated upon energy and glucose shortage but suppressed upon overnutrition. Exaggerated negative regulation of AMPK signaling by nutrient overload plays a crucial role in metabolic diseases. However, the mechanism underlying the negative regulation is poorly understood. Here, we demonstrate that high glucose represses AMPK signaling via MG53 (also called TRIM72) E3-ubiquitin-ligase-mediated AMPKα degradation and deactivation. Specifically, high-glucose-stimulated reactive oxygen species (ROS) signals AKT to phosphorylate AMPKα at S485/491, which facilitates the recruitment of MG53 and the subsequent ubiquitination and degradation of AMPKα. In addition, high glucose deactivates AMPK by ROS-dependent suppression of phosphorylation of AMPKα at T172. These findings not only delineate the mechanism underlying the impairment of AMPK signaling in overnutrition-related diseases but also highlight the significance of keeping the yin-yang balance of AMPK signaling in the maintenance of metabolic homeostasis.
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Affiliation(s)
- Peng Jiang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Lejiao Ren
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Li Zhi
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Zhong Yu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Fengxiang Lv
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Fengli Xu
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Wei Peng
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Xiaoyu Bai
- Morningside Laboratory for Chemical Biology, Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Kunlun Cheng
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Li Quan
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Xiuqin Zhang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Xianhua Wang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Yan Zhang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology, Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Xinli Hu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China.
| | - Rui-Ping Xiao
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Beijing City Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China; PKU-Nanjing Institute of Translational Medicine, Nanjing 211800, China.
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Wei Y, Quan L, Zhou T, Du G, Jiang S. The relationship between different C-peptide level and insulin dose of insulin pump. Nutr Diabetes 2021; 11:7. [PMID: 33483468 PMCID: PMC7822886 DOI: 10.1038/s41387-020-00148-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 11/30/2022] Open
Abstract
Background This study aims to explore the insulin requirement profiles, and analyze the related factors of type-2 diabetes mellitus (T2DM) with different C-peptide levels on insulin pump therapy. Methods A retrospective study was conducted on 271 T2DM patients treated with insulin pumps from 2016 to 2018. These patients were divided into groups according to the ratio of C-peptide at 2 h after meals to fasting C-peptide (C2h/C0), and the dosage of insulin and influencing factors were analyzed. Results In comparing group A (C2h/C0 < 2.5) with group B (C2h/C0 ≥ 2.5), the percentage of the base amount in total (%TBa, 0.50 ± 0.06) in group A was higher than that in group B (0.48 ± 0.05) (P < 0.05). Furthermore, there was a correlation between C2h/C0 and waist circumference, HbA1c, Fasting Plasma Glucose (FPG) and Blood glucose 2 h after meal (2hPG) (r = −0.137, −0.154, −0.471, and −0.172; all, P < 0.05). The multiple linear regression analysis revealed that BMI and FPG were independent factors of %TBa (β′ = 0.124 and 0.144; all, P < 0.05), and BMI and FPG were independent factors of C2h/C0 (β′ = −0.134 and −0.502; all, P < 0.05). Conclusions The basal premeal dose ratio of T2DM with different C-peptide levels differs during intensive insulin pump therapy. Parameters that indicate the glycemic control and β-cell function should be taken into consideration for total insulin requirements.
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Affiliation(s)
- Yihan Wei
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia; Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830017, China
| | - Li Quan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia; Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830017, China
| | - Ting Zhou
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia; Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830017, China
| | - Guoli Du
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia; Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830017, China
| | - Sheng Jiang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia; Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830017, China.
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Hongna Y, Hongzhao T, Quan L, Delin F, Guijun L, Xiaolin L, Fulin G, Zhongren S. Jia-Ji Electro-Acupuncture Improves Locomotor Function With Spinal Cord Injury by Regulation of Autophagy Flux and Inhibition of Necroptosis. Front Neurosci 2021; 14:616864. [PMID: 33551728 PMCID: PMC7862567 DOI: 10.3389/fnins.2020.616864] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 10/13/2020] [Accepted: 12/29/2020] [Indexed: 12/15/2022] Open
Abstract
Jia-Ji electro-acupuncture (EA) has been widely applied in clinic to exhibit curative effects on spinal cord injury (SCI). However, its underlying mechanisms leading to improvement of motor function after SCI remain unclear. Allen’s method was made by NYU Impactor M-III equipment to create the SCI rats model. Rats were randomly divided into four groups: Sham (only laminectomy), Model (SCI group), EA (SCI + Jia-Ji EA treatment), EA + CQ (SCI + Jia-Ji EA treatment + inhibitor chloroquine). Basso-Beattie-Bresnahan assessment showed improvement of hind limb motor function after Jia-Ji electro-acupuncture treatment. Histological change of injured spinal cord tissue was alleviated after treatment, observed by hematoxylin-eosin and Nissl staining. The mRNA and protein expression levels of RIPK1, RIPK3 and MLKL were decreased in EA group. Besides, the increased expression of LC3 and reduced expression of P62 after treatment compared with Model group, confirmed that Jia-Ji electro-acupuncture could enhance the autophagy flux. Electron microscopy imaging showed increasing the number of lysosomes, autophagosomes, and autolysosomes after Jia-Ji electro-acupuncture treatment. Furthermore, inhibition of lysosome function with CQ led to partly eliminate the effect of EA on reducing necroptosis. These data make the case that Jia-Ji electro-acupuncture treatment may improve locomotor function by promoting autophagy flux and inhibiting necroptosis.
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Affiliation(s)
- Yin Hongna
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Tian Hongzhao
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Li Quan
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Feng Delin
- Harbin Children's Hospital, Harbin, China
| | - Liu Guijun
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lv Xiaolin
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Guan Fulin
- Neurology Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Sun Zhongren
- Acupuncture Department, Heilongjiang University of Chinese Medicine, Harbin, China
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Ran Y, Quan L, Cui J, Liu J, Lin W, Yu X, Wang L, Zhang Y. Ultrafine Fe nanoparticles embedded in N-doped carbon nanotubes derived from highly dispersed g-C 3N 4 nanofibers for the oxygen reduction reaction. NEW J CHEM 2021. [DOI: 10.1039/d1nj00529d] [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: 11/21/2022]
Abstract
The improved performance was attributed to the synergetic interaction between Fe, h-CN and CNTs.
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Affiliation(s)
- Yue Ran
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Li Quan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Jiayi Cui
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Jianqiao Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Wei Lin
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Xuelian Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Lin Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
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Zhang M, Su Y, Quan L, Jiang S, Yao H. Estimates of beta cell function adjusted by anthropometric markers in patients with T2DM. Clin Exp Pharmacol Physiol 2020; 47:1509-1516. [PMID: 32415755 DOI: 10.1111/1440-1681.13337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 11/28/2022]
Abstract
We sought to determine whether adjusting the indices used to assess beta cell function by anthropometric markers of obesity improves their clinical value in a diabetic population. We conducted a cross-sectional survey of 3732 diabetic patients who underwent a 100 g carbohydrate meal test. Insulin secretion was estimated using HOMA-B of steady state as well as △C0-30 /△G0-30 , △AUCc30-120 /△AUCG30-120 and CPIn for dynamic state. Body weight index, waist circumference, waist-hip ratio and body surface area were recorded. The final analysis included 2873 T2DM patients. Correlation analyses showed that there was a poor correlation between diabetic duration and CPI30 (r = -.040, P < .05), and there were no remarkable changes in the correlation coefficient after CPI30 was divided by BMI, WC, WHR, or body surface area, respectively. The same was found for the correlation between HbA1c and CPI120 with these measures. The main determinants of diabetic duration were age (β = 0.388, P < .001), log HOMA-IR (β = -0.328, P < .001), CPI30 (β = -0.045, P = .011). There were no remarkable changes in β weights between diabetic duration and CPI30 when it was corrected with anthropometric markers in the multiple stepwise linear regression analyses. The same was found between HbA1c and CPI120 . CPI30 and CPI120 are more practical indexes. Correcting the indices used to estimate the beta cell function by anthropometric markers of obesity may not improve their correlations with diabetic duration or HbA1c in a diabetic population.
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Affiliation(s)
- Mingchen Zhang
- Department of Endocrinology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.,Postdoctoral Research Station of Public Health, School of Public Health, Xinjiang Medical University, Urumqi, China
| | - Yinxia Su
- Health Management Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Li Quan
- Department of Endocrinology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Sheng Jiang
- Department of Endocrinology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Hua Yao
- Postdoctoral Research Station of Public Health, School of Public Health, Xinjiang Medical University, Urumqi, China.,The Key Laboratory of Xinjiang Metabolic Disease, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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Gao F, Hu Y, Li G, Liu S, Quan L, Yang Z, Wei Y, Pan C. Layer-by-layer deposition of bioactive layers on magnesium alloy stent materials to improve corrosion resistance and biocompatibility. Bioact Mater 2020; 5:611-623. [PMID: 32405576 PMCID: PMC7212186 DOI: 10.1016/j.bioactmat.2020.04.016] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [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: 03/14/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/11/2022] Open
Abstract
Magnesium alloy is considered as one of the ideal cardiovascular stent materials owing to its good mechanical properties and biodegradability. However, the in vivo rapid degradation rate and the insufficient biocompatibility restrict its clinical applications. In this study, the magnesium alloy (AZ31B) was modified by combining the surface chemical treatment and in-situ self-assembly of 16-phosphonyl-hexadecanoic acid, followed by the immobilization of chitosan-functionalized graphene oxide (GOCS). Heparin (Hep) and GOCS were alternatively immobilized on the GOCS-modified surface through layer by layer (LBL) to construct the GOCS/Hep bioactive multilayer coating, and the corrosion resistance and biocompatibility were extensively explored. The results showed that the GOCS/Hep bioactive multilayer coating can endow magnesium alloys with an excellent in vitro corrosion resistance. The GOCS/Hep multilayer coating can significantly reduce the hemolysis rate and the platelet adhesion and activation, resulting in an excellent blood compatibility. In addition, the multilayer coating can not only enhance the adhesion and proliferation of the endothelial cells, but also promote the vascular endothelial growth factor (VEGF) and nitric oxide (NO) expression of the attached endothelial cells on the surfaces. Therefore, the method of the present study can be used to simultaneously control the corrosion resistance and improve the biocompatibility of the magnesium alloys, which is expected to promote the application of magnesium alloys in biomaterials or medical devices, especially cardiovascular stent. The multilayer coating of GOCS and heparin was constructed on magnesium surface. The coating can obviously improve the corrosion resistance of magnesium alloys. The coating can enhance the hemocompatibility and endothelial cell growth behaviors.
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Affiliation(s)
- Fan Gao
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Youdong Hu
- Department of Geriatrics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Guicai Li
- Jiangsu Key Laboratory of Nerve Regeneration, Nantong University, Nantong 226001, China
| | - Sen Liu
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Li Quan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Zhongmei Yang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Yanchun Wei
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Changjiang Pan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
- Corresponding author.
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Pan C, Hu Y, Gong Z, Yang Y, Liu S, Quan L, Yang Z, Wei Y, Ye W. Improved Blood Compatibility and Endothelialization of Titanium Oxide Nanotube Arrays on Titanium Surface by Zinc Doping. ACS Biomater Sci Eng 2020; 6:2072-2083. [PMID: 33455341 DOI: 10.1021/acsbiomaterials.0c00187] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Titanium dioxide nanotube arrays are widely used in biomaterials due to their unique tubular structure and tunable biocompatibility. In the present study, titanium oxide nanotube arrays with different diameters were prepared on the titanium surface by anodization, followed by zinc doping using hydrothermal treatment to enhance the biocompatibility. Both the nanotube dimensions and zinc doping had obvious influences on the hydrophilicity, protein adsorption, blood compatibility, and endothelial cell behaviors of the titanium surface. The increase of the diameter and zinc doping can improve the hydrophilicity of the titanium surface. The increase of nanotube diameter could reduce the albumin adsorption while increasing the fibrinogen adsorption. However, zinc doping can simultaneously promote the adsorption of albumin and fibrinogen, and the effect was more obvious for albumin. Zinc doping can significantly improve the blood compatibility of the titanium oxide nanotubes because it cannot only increase the activity of cyclophosphate guanylate (cGMP) but also significantly reduce the platelets adhesion and hemolysis rate. Moreover, it was also found that both the smaller diameter and zinc doping nanotubes can enhance the endothelial cell adhesion and proliferation as well as up-regulate the expression of NO and VEGF. Therefore, the zinc doped titanium dioxide nanotube array can be used to simultaneously improve the blood compatibility and promote endothelialization of the titanium-based biomaterials and implants, such as intravascular stents.
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Affiliation(s)
- Changjiang Pan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Youdong Hu
- Department of Geriatrics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Zhihao Gong
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Ya Yang
- Department of Geriatrics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Sen Liu
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Li Quan
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Zhongmei Yang
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Yanchun Wei
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Wei Ye
- Faculty of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
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Wei Y, Liu S, Pan C, Yang Z, Liu Y, Yong J, Quan L. Molecular Antenna-Sensitized Upconversion Nanoparticle for Temperature Monitored Precision Photothermal Therapy. Int J Nanomedicine 2020; 15:1409-1420. [PMID: 32184595 PMCID: PMC7060035 DOI: 10.2147/ijn.s236371] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/01/2020] [Indexed: 11/23/2022] Open
Abstract
Background Photothermal therapy with accurate and real-time temperature detection is desired in clinic. Upconversion nanocrystals (UCNs) are candidate materials for simultaneous temperature detection and photothermal agents carrying. However, the weak luminescence and multiple laser excitations of UCNs limit their application in thermal therapy. Materials and Methods NaYF4:Yb3+,Er3+,Nd3+, PL-PEG-NH2, IR-806 and folic acid are selected as structural components. A nanoprobe (NP) integrated with efficient photothermal conversion and sensitive temperature detection capabilities is synthesized for precise photothermal therapy. The probes are based on near-infrared upconversion nanocrystals doped with Yb, Er and Nd ions, which can be excited by 808 nm light. IR-806 dye molecules are modified on the surface as molecular antennas to strongly absorb near-infrared photons for energy transfer and conversion. Results The results show that under an 808 nm laser irradiation upconversion luminescence of the nanocrystals is enhanced based on both the Nd ion absorption and the FRET energy transfer of IR-806. The luminescence ratio at 520 and 545 nm is calculated to accurately monitor the temperature of the nanoparticles. The temperature of the nanoprobes increases significantly through energy conversion of the molecular antennas. The nanoparticles are found successfully distributed to tumor cells and tumor tissue due to the modification of the biocompatible molecules on the surface. Tumor cells can be killed efficiently based on the photothermal effect of the NPs. Under the laser irradiation, temperature at mouse tumor site increases significantly, tissue necrosis and tumor cell death can be observed. Conclusion Precision photothermal therapy can thus be achieved by highly efficient near-infrared light absorption and accurate temperature monitoring, making it promising for tumor treatment, as well as the biological microzone temperature detection.
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Affiliation(s)
- Yanchun Wei
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Sen Liu
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Changjiang Pan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Zhongmei Yang
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Ying Liu
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Jianfang Yong
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
| | - Li Quan
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an, Jiangsu, People's Republic of China
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Quan L, Lin Z, Lin Y, Wei Y, Lei L, Li Y, Tan G, Xiao M, Wu T. Glucose-modification of cisplatin to facilitate cellular uptake, mitigate toxicity to normal cells, and improve anti-cancer effect in cancer cells. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Abstract
Hyperbolic metasurfaces, supporting extreme anisotropy of the surface impedance tensor, have recently been explored in nanophotonic systems for robust diffractionless propagation over a surface, offering interesting opportunities for subdiffraction imaging and enhanced Purcell emission. In acoustics, due to the longitudinal nature of sound transport in fluids, these phenomena are forbidden by symmetry, requiring the acoustic surface impedance to be inherently isotropic. Here we show that nonlocalities produced by strong coupling between neighboring impedance elements enable extreme anisotropic responses for sound traveling over a surface, supporting negative phase and energy velocities, as well as hyperbolic propagation for acoustic surface waves.
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Affiliation(s)
- Li Quan
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Andrea Alù
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
- Photonics Initiative, Advanced Science Research Center, City University of New York, New York, New York 10031, USA
- Physics Program, Graduate Center, City University of New York, New York, New York 10016, USA
- Department of Electrical Engineering, City College of The City University of New York, New York 10031, USA
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Griffis H, Wu L, Naim MY, Bradley R, Tobin J, McNally B, Vellano K, Quan L, Markenson D, Rossano JW. Characteristics and outcomes of AED use in pediatric cardiac arrest in public settings: The influence of neighborhood characteristics. Resuscitation 2019; 146:126-131. [PMID: 31785372 DOI: 10.1016/j.resuscitation.2019.09.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 02/01/2019] [Revised: 08/27/2019] [Accepted: 09/09/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Automated external defibrillators (AEDs) are critical in the chain of survival following out-of-hospital cardiac arrest (OHCA), yet few studies have reported on AED use and outcomes among pediatric OHCA. This study describes the association between bystander AED use, neighborhood characteristics and survival outcomes following public pediatric OHCA. METHODS Non-traumatic OHCAs among children less than18 years of age in a public setting between from January 1, 2013 through December 31, 2017 were identified in the CARES database. A neighborhood characteristic index was created from the addition of dichotomous values of 4 American Community Survey neighborhood characteristics at the Census tract level: median household income, percent high school graduates, percent unemployment, and percent African American. Multivariable logistic regression models assessed the association of OHCA characteristics, the neighborhood characteristic index and outcomes. RESULTS Of 971 pediatric OHCA, AEDs were used by bystanders in 10.3% of OHCAs. AEDs were used on 2.3% of children ≤1 year (infants), 8.3% of 2-5 year-olds, 12.4% of 6-11 year-olds, and 18.2% of 12-18 year-olds (p < 0.001). AED use was more common in neighborhoods with a median household income of >$50,000 per year (12.3%; p = 0.016), <10% unemployment (12.1%; p = 0.002), and >80% high school education (11.8%; p = 0.002). Greater survival to hospital discharge and neurologically favorable survival were among arrests with bystander AED use, varying by neighborhood characteristics. CONCLUSIONS Bystander AED use is uncommon in pediatric OHCA, particularly in high-risk neighborhoods, but improves survival. Further study is needed to understand disparities in AED use and outcomes.
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Affiliation(s)
- H Griffis
- Healthcare Analytics Unit, The Children's Hospital of Philadelphia, United States; Department of Biomedical Health Informatics, The Children's Hospital of Philadelphia, United States; Cardiac Center Research Core, The Children's Hospital of Philadelphia, United States.
| | - L Wu
- The Children's Hospital of Philadelphia, United States
| | - M Y Naim
- Cardiac Center Research Core, The Children's Hospital of Philadelphia, United States; The Children's Hospital of Philadelphia, United States; Division of Critical Care, The Children's Hospital of Philadelphia, United States
| | - R Bradley
- Division of Emergency Medical Services and Disaster Medicine, University of Texas Health Science Center, United States
| | - J Tobin
- Division of Trauma Anesthesiology, University of Southern California, United States
| | - B McNally
- Department of Emergency Medicine, Emory University, United States
| | - K Vellano
- Department of Emergency Medicine, Emory University, United States
| | - L Quan
- Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Washington School of Medicine, United States
| | | | - J W Rossano
- Cardiac Center Research Core, The Children's Hospital of Philadelphia, United States; The Children's Hospital of Philadelphia, United States; Division of Critical Care, The Children's Hospital of Philadelphia, United States
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Shi R, Long C, Dai Y, Huang Q, Gao Y, Zhang N, Chen Y, Liu S, Ma Q, Quan L, Zhang Y, Luo B. Bongkrekic acid poisoning: Severe liver function damage combined with multiple organ failure caused by eating spoiled food. Leg Med (Tokyo) 2019; 41:101622. [DOI: 10.1016/j.legalmed.2019.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/18/2019] [Accepted: 07/24/2019] [Indexed: 01/24/2023]
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Wu H, Shi S, Lu X, Li T, Wang J, Liu T, Zhang Q, Sun W, Li C, Wang Z, Chen Y, Quan L. Expression Analysis and Functional Characterization of CER1 Family Genes Involved in Very-Long-Chain Alkanes Biosynthesis in Brachypodium distachyon. Front Plant Sci 2019; 10:1389. [PMID: 31737015 PMCID: PMC6838206 DOI: 10.3389/fpls.2019.01389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 10/08/2019] [Indexed: 05/08/2023]
Abstract
Cuticular wax accumulation and composition affects drought resistance in plants. Brachypodium distachyon plants subjected to water deficit and polyethylene glycol treatments resulted in a significant increase in total wax load, in which very-long-chain (VLC) alkanes were more sensitive to these treatments than other wax compounds, implying that VLC alkanes biosynthesis plays a more important role in drought resistance in B. distachyon. ECERIFERUM1 (CER1) has been reported to encode a core enzyme involved in VLC alkanes biosynthesis in Arabidopsis (Arabidopsis thaliana), but few corresponding genes are investigated in B. distachyon. Here, we identified eight CER1 homologous genes in B. distachyon, namely BdCER1-1 to BdCER1-8, and then analyzed their sequences feature, expression patterns, stress induction, and biochemical activities. These genes had similar protein structure to other reported CER1 and CER1-like genes, but displayed closer phylogenetic relationship to the rice OsGL1 genes. They were further found to exhibit various tissue expression patterns after being induced by abiotic stresses. Among them, BdCER1-8 gene showed extremely high expression in leaves. Heterologous introduction of BdCER1-8 into the Arabidopsis cer1 mutant rescued VLC alkanes biosynthesis. These results indicate that BdCER1 genes are likely to be involved in VLC alkanes biosynthesis of B. distachyon. Taken together, BdCER1-8 seems to play an explicit and predominant role in VLC alkanes biosynthesis in leaf. Our work provides important clues for further characterizing function of CER1 homologous genes in B. distachyon and also an option to improve drought resistance of cereal crops.
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Affiliation(s)
- Hongqi Wu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Shandang Shi
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Xiaoliang Lu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Tingting Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Jiahuan Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Tianxiang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Qiang Zhang
- Shaanxi Province Tobacco Company of China National Tobacco Company, Xi’an, China
| | - Wei Sun
- Shaanxi Province Tobacco Company of China National Tobacco Company, Xi’an, China
| | - Chunlian Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Yaofeng Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Li Quan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
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Quan L, Wang L, Wang J, Yuwen B, Zhu J. Association between sex hormone binding globulin gene polymorphism and type 2 diabetes mellitus. Int J Clin Exp Pathol 2019; 12:3514-3520. [PMID: 31934198 PMCID: PMC6949838] [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] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
This study aims to investigate the relationship between single nucleotide polymorphisms (SNPs) of sex hormone binding globulin (SHBG) and type 2 diabetes mellitus (T2DM) in an Uighur population. One hundred and fourteen T2DM male patients (with a history of diabetes or diagnosed as diabetic by the oral glucose tolerance test) and 173 healthy males from the Uighur ethnic group were included in the study to test the following SNPs of SHBG: rs727428, rs1799941, rs6259, rs6257, rs858521, rs858518, rs3760213, and rs11078701. The body mass index (BMI), blood pressure, and waist circumference, and lipid, glucose, HbA1c, insulin, HOMA-IR, testosterone, and SHBG levels of enrolled individuals were measured. We used the t-test or rank sum test and Chi-square test to analyze the difference and compare numeration data, respectively, between the case and control groups. Comparisons among multiple groups were carried out using analysis of variance, and the correlation between variables was determined by nonparametric Spearman rank correlation analysis; multivariate logistic regression analysis was used to assess the risk of abnormal glucose in the two groups. There was a significant difference (P < 0.05) in BMI, blood pressure, and waist circumference, and lipid, glucose, HbA1c, insulin, and HOMA-IR levels between the case and control groups. The risk factors for diabetes included testosterone (P = 0.042) and SHBG (P = 0.001). The distribution of rs858521 (P = 0.001), rs1799941 (2.3%, P = 0.032), rs6259 (2.5%, P = 0.040), and rs727428 (3.4%, P = 0.016) was significantly different between the case and control groups (P < 0.05). In the control group, there was linkage disequilibrium (LD) between rs727428 and rs6259, while in the case group LD was found among rs858518, rs3760213, rs1799941, and rs6257. The frequency of rs858518-rs3760213-rs1799941-rs6257 haplotype TCGC was significantly different between the two groups (P = 0.033). Both testosterone and SHBGwere found to be risk factors of diabetes in the Uighur population, and SNPs of SHBG may contribute to T2DM.
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Affiliation(s)
- Li Quan
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi, China
| | - Liang Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi, China
| | - Jing Wang
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi, China
| | - Binya Yuwen
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi, China
| | - Jun Zhu
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi, China
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Abstract
Mechanical motion can break the symmetry in which sound travels in a medium, but significant nonreciprocity is typically achieved only for large motion speeds. We combine moving media with zero-index acoustic propagation, yielding extreme nonreciprocity and induced bianisotropy for modest applied speeds. The metamaterial is formed by an array of waveguides loaded by Helmholtz resonators, and it exhibits opposite signs of the refractive index sustained by asymmetric Willis coupling for propagation in opposite directions. We use this response to induce nonreciprocal positive-to-negative sound refraction, and we propose a nonreciprocal metamaterial lens focusing only with excitation from one side based on asymmetric Willis coupling.
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Affiliation(s)
- Li Quan
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Dimitrios L Sounas
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
- Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA
| | - Andrea Alù
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
- Photonics Initiative, Advanced Science Research Center, City University of New York, New York, New York 10031, USA
- Physics Program, Graduate Center, City University of New York, New York, New York 10016, USA
- Department of Electrical Engineering, City College of The City University of New York, New York 10031, USA
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Quan L, Gu J, Lin W, Wei Y, Lin Y, Liu L, Ding H, Pan C, Xie Z, Wu T. A BODIPY biosensor to detect and drive self-assembly of diphenylalanine. Chem Commun (Camb) 2019; 55:8564-8566. [PMID: 31271158 DOI: 10.1039/c9cc03810h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Diphenylalanine (FF), as the smallest unit and core recognition motif of β-amyloid (Aβ), could self-assemble into nanofibers, which induces an early onset of Alzheimer's disease (AD). Green/near-infrared fluorescent BODIPY probes were designed and synthesized to detect FF-assembly, providing unique insights into the chemical and molecular mechanism of Aβ aggregation and drug development for AD.
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Affiliation(s)
- Li Quan
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Jianhua Gu
- Electron Microscopy Core, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Wenhai Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yanchun Wei
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Yuebin Lin
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Lei Liu
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Hongyan Ding
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Changjiang Pan
- Department of Mechanical and Material Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu Province, China.
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Tianfu Wu
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA.
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