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Gou L, Liu YY, Lin C, Zhang G, Gao J, Zhu YP, Guo X, Lu XX, Ma ZG. [Etiologies of extreme thrombocytosis in children: a retrospective study]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:344-346. [PMID: 37357007 DOI: 10.3760/cma.j.issn.0253-2727.2023.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Affiliation(s)
- L Gou
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y Y Liu
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - C Lin
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - G Zhang
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - J Gao
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Y P Zhu
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X Guo
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - X X Lu
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
| | - Z G Ma
- West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Chengdu 610041, China
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Yan C, Zeng T, Lee K, Nobis M, Loh K, Gou L, Xia Z, Gao Z, Bensellam M, Hughes W, Lau J, Zhang L, Ip CK, Enriquez R, Gao H, Wang QP, Wu Q, Haigh JJ, Laybutt DR, Timpson P, Herzog H, Shi YC. Peripheral-specific Y1 receptor antagonism increases thermogenesis and protects against diet-induced obesity. Nat Commun 2021; 12:2622. [PMID: 33976180 PMCID: PMC8113522 DOI: 10.1038/s41467-021-22925-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 03/16/2021] [Indexed: 12/20/2022] Open
Abstract
Obesity is caused by an imbalance between food intake and energy expenditure (EE). Here we identify a conserved pathway that links signalling through peripheral Y1 receptors (Y1R) to the control of EE. Selective antagonism of peripheral Y1R, via the non-brain penetrable antagonist BIBO3304, leads to a significant reduction in body weight gain due to enhanced EE thereby reducing fat mass. Specifically thermogenesis in brown adipose tissue (BAT) due to elevated UCP1 is enhanced accompanied by extensive browning of white adipose tissue both in mice and humans. Importantly, selective ablation of Y1R from adipocytes protects against diet-induced obesity. Furthermore, peripheral specific Y1R antagonism also improves glucose homeostasis mainly driven by dynamic changes in Akt activity in BAT. Together, these data suggest that selective peripheral only Y1R antagonism via BIBO3304, or a functional analogue, could be developed as a safer and more effective treatment option to mitigate diet-induced obesity.
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Affiliation(s)
- Chenxu Yan
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Tianshu Zeng
- Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kailun Lee
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Max Nobis
- Invasion and Metastasis Lab, Cancer Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Kim Loh
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,St. Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - Luoning Gou
- Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zefeng Xia
- Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhongmin Gao
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Mohammed Bensellam
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Institute of Experimental and Clinical Research, Pole of Endocrinology, Diabetes and Nutrition, Université catholique de Louvain, Brussels, Belgium
| | - Will Hughes
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Jackie Lau
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Lei Zhang
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Chi Kin Ip
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Ronaldo Enriquez
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Hanyu Gao
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Qiao-Ping Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, China
| | - Qi Wu
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia
| | - Jody J Haigh
- Research Institute in Oncology and Hematology, Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB, Canada
| | - D Ross Laybutt
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Paul Timpson
- Invasion and Metastasis Lab, Cancer Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia
| | - Herbert Herzog
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia. .,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia.
| | - Yan-Chuan Shi
- Neuroscience Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia. .,Diabetes and Metabolism Division, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney, NSW, Australia. .,Faculty of Medicine, UNSW Australia, Sydney, NSW, Australia.
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Peng L, Li A, Liu S, Sun H, Zheng M, Zhou J, Zhang J, Zhang X, Zhou Q, Zhong W, Yang X, Tu H, Su J, Yan H, Gou L, Gao H, Wu Y. P85.02 NGS could not Replace FISH Regarding to MET Amplification as an Optimal Biomarker. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gou L, Xiang M, Ran X, Wang F, Zhang S, Li S, Dong K, Chen X, Huang Y, Meng C, Fan Q, Yang Y, Yu X, Ma D, Yin P. Hyperosmolarity Deserves More Attention in Critically Ill COVID-19 Patients with Diabetes: A Cohort-Based Study. Diabetes Metab Syndr Obes 2021; 14:47-58. [PMID: 33442281 PMCID: PMC7800461 DOI: 10.2147/dmso.s284148] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 12/01/2020] [Indexed: 01/08/2023] Open
Abstract
PURPOSE Recently, a cluster of pneumonia caused by SARS-CoV-2 were identified in Wuhan and spread throughout the world. More information about risk factors for mortality of critically ill patients infected with SARS-CoV-2 remain to be evaluated. METHODS We included adult patients confirmed with SARS-CoV-2 infection who were critically ill and admitted to the intensive care unit (ICU) of Tongji Hospital in Wuhan from Feb 4, 2020 to Feb 20, 2020. Data were collected and compared between patients who died and improved. Logistic regression was used to explore the risk factors for death of SARS-CoV-2-infected critically ill patients. RESULTS A total of 160 critically ill patients with SARS-CoV-2 infection were included, of which 146 patients with appeared outcomes were included into the final analysis. The random blood glucose, serum sodium and effective plasma osmolarity were higher in deceased patients, especially in patients with diabetes. There were 7 patients with diabetes with hyperosmolar status and all of them were deceased. Multivariable regression revealed that older age (odds ratio 4.28, 95% CI 1.01-18.20; p = 0.049), higher C-reactive protein (odds ratio 1.01, 1.00-1.03; p = 0.024), higher interleukin-6 (odds ratio 1.01, 1.00-1.03; p = 0.0323), and d-dimer greater than 1 μg/mL (odds ratio 1.10, 1.01-1.20; p = 0.032) at admission were associated with increased odds of death. CONCLUSION In conclusion, hyperosmolarity needs more attention and may contribute to mortality in critically ill patients with COVID-19, especially in those with diabetes. Older age, inflammatory response, and thrombosis may be risk factors for death of critically ill patients with SARS-CoV-2 infection.
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Affiliation(s)
- Luoning Gou
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Ming Xiang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xiao Ran
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Fen Wang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Shujun Zhang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Shusheng Li
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Kun Dong
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xi Chen
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yangxin Huang
- College of Public Health, University of South Florida, Tampa, Florida, The United States
| | - Chengzhen Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Qian Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yan Yang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xuefeng Yu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Delin Ma
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Delin Ma Email
| | - Ping Yin
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Correspondence: Ping Yin; Delin Ma Tongji Medical College, Huazhong University of Science and Technology, 13 Hongkong Road, Wuhan, 430030Hubei, People’s Republic of ChinaTel + 86-27-83692832Fax +86-27-83692333 Email
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Lu X, Hu S, Liao Y, Zheng J, Zeng T, Zhong X, Liu G, Gou L, Chen L. Vascular endothelial growth factor B promotes transendothelial fatty acid transport into skeletal muscle via histone modifications during catch-up growth. Am J Physiol Endocrinol Metab 2020; 319:E1031-E1043. [PMID: 32954823 DOI: 10.1152/ajpendo.00090.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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] [Indexed: 12/14/2022]
Abstract
Caloric restriction (CR) followed by refeeding, a phenomenon known as catch-up growth (CUG), results in excessive lipid deposition and insulin resistance in skeletal muscle, but the underlying mechanisms remain elusive. Recent reports have suggested that vascular endothelial growth factor B (VEGF-B) controls muscle lipid accumulation by regulating endothelial fatty acid transport. Here, we found continuous activation of VEGF-B signaling and increased lipid uptake in skeletal muscle from CR to refeeding, as well as increased lipid deposition and impaired insulin sensitivity after refeeding in the skeletal muscle of CUG rodents. Inhibiting VEGF-B signaling reduced fatty acid uptake in and transport across endothelial cells. Knockdown of Vegfb in the tibialis anterior (TA) muscle of CUG mice significantly attenuated muscle lipid accumulation and ameliorated muscle insulin sensitivity by decreasing lipid uptake. Furthermore, we showed that aberrant histone methylation (H3K9me1) and acetylation (H3K14ac and H3K18ac) at the Vegfb promoter might be the main cause of persistent VEGF-B upregulation in skeletal muscle during CUG. Modifying these aberrant loci using their related enzymes [PHD finger protein 2 (PHF2) or E1A binding protein p300 (p300)] could regulate VEGF-B expression in vitro. Collectively, our findings indicate that VEGF-B can promote transendothelial lipid transport and lead to lipid overaccumulation and insulin resistance in skeletal muscle during CUG, which might be mediated by histone methylation and acetylation.
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Affiliation(s)
- Xiaodan Lu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Shengqing Hu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Yunfei Liao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Tianshu Zeng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Xueyu Zhong
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Geng Liu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
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Xie Y, Gou L, Peng M, Zheng J, Chen L. Effects of soluble fiber supplementation on glycemic control in adults with type 2 diabetes mellitus: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr 2020; 40:1800-1810. [PMID: 33162192 DOI: 10.1016/j.clnu.2020.10.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/09/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND & AIMS Soluble dietary fiber is prompted as an important part of reducing blood glucose, ameliorating insulin resistance and controlling body weight. Thus, we performed this systematic review and meta-analysis of randomized controlled trials (RCTs) to quantify and synthesize the effects of soluble fiber supplementation on glycemic control and BMI modification in adults with type 2 diabetes. METHODS We searched MEDLINE, Embase, Web of Science, ClinicalTrials.gov, and Cochrane databases until February 13, 2020 to identify RCTs that detected the effects of soluble fiber supplementation on glycemic control in adults with type 2 diabetes. A random-effects model with the generic inverse variance method was used to analyze the pooled data. The meta-regression and subgroup analyses were conducted to identify the variables that influenced the pooled results. The robust error meta-regression model was used to conduct the dose-response test. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system was undertaken to evaluate the overall quality of the evidence. RESULTS A total of 29 RCTs (33 comparisons) involving 1517 participants were identified in this meta-analysis. Results showed that supplemental soluble dietary fiber significantly reduced glycosylated hemoglobin (HbA1c, MD -0.63%, 95% CI [-0.90, -0.37]; P < 0.00001), fasting plasma glucose (FPG, MD -0.89 mmol/L, 95% CI [-1.28, -0.51]; P < 0.00001), fasting insulin (SMD -0.48, 95% CI [-0.80, -0.17]; P = 0.003), homeostatic model assessment of insulin resistance (HOMA-IR, SMD -0.58, 95% CI [-0.86, -0.29], P < 0.0001), fructosamine (SMD -1.03, 95% CI [-1.51, -0.55]; P < 0.0001), 2-h postprandial plasma glucose (SMD -0.74, 95% CI [-1.00, -0.48]; P < 0.00001), and BMI (SMD -0.31, 95% CI [-0.61, -0.00], P = 0.05) compared with control diets in patients with type 2 diabetes. Specifically, dose-response meta-analyses presented that a daily dosage of 7.6-8.3 g was recommended. CONCLUSION Intake of soluble fiber supplementation is effective in improving glycemic control and BMI level in type 2 diabetes and is also a convenient way to help individuals meet standard dietary fiber needs. But due to the evidence of substantial heterogeneity in most pooled estimates, further long-term and high-quality RCTs are needed.
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Affiliation(s)
- Yajuan Xie
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Miaomiao Peng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan, 430022, China; Hubei Provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China.
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Cao M, Gou L, Chen Y, Huang M. 241P Germline genetic features of Chinese patients with breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.362] [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: 11/15/2022] Open
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Gou L, Liu G, Ma R, Regmi A, Zeng T, Zheng J, Zhong X, Chen L. High fat-induced inflammation in vascular endothelium can be improved by Abelmoschus esculentus and metformin via increasing the expressions of miR-146a and miR-155. Nutr Metab (Lond) 2020; 17:35. [PMID: 32467714 PMCID: PMC7222555 DOI: 10.1186/s12986-020-00459-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 12/07/2019] [Accepted: 05/07/2020] [Indexed: 12/16/2022] Open
Abstract
Background Obesity is associated with chronic inflammation, which contributes to cardiovascular diseases. MicroRNAs (miRNAs) are reported to be involved in vascular inflammation and atherosclerosis. Abelmoschus esculentus (AE) and metformin have been suggested to improve inflammation in vascular system. The aim of this study is to evaluate whether miRNAs are involved in high fat induced endothelial inflammation, and whether AE and metformin improve endothelial inflammation by regulating miRNAs. Methods We established high fat treated rats and human aortic endothelial cells (HAECs). AE and metformin were added to explore their effects on endothelial inflammation induced by high fat and the possible mechanism. Results The vascular inflammatory genes were increased in rats treated with high fat diet. The decreased miR-146a and miR-155 were involved in endothelial inflammation induced by high fat through targeting IL-1 receptor-associated kinase 1 (IRAK1), TNF receptor-associated factor 6 (TRAF6) and nuclear factor-κB p65 (NF-κB p65), respectively. While AE and metformin could ameliorate the endothelial inflammation by increasing miR-146a and miR-155. Conclusions These results indicate that miR-146a and miR-155 play roles in the high fat induced endothelial inflammation, which could be potential therapeutic targets. AE and metformin can attenuate endothelial inflammation through regulating miR-146a and miR-155.
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Affiliation(s)
- Luoning Gou
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,2Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Geng Liu
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Rong Ma
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Anita Regmi
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Tianshu Zeng
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Juan Zheng
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Xueyu Zhong
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
| | - Lulu Chen
- 1Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China.,Hubei provincial Clinical Research Center for Diabetes and Metabolic Disorders, Wuhan, China
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Abstract
Regenerative dentistry is an emerging field of medicine involving stem cell technology, tissue engineering and dental science. It exploits biological mechanisms to regenerate damaged oral tissues and restore their functions. Platelet‐rich plasma (PRP) is a biological product that is defined as the portion of plasma fraction of autologous blood with a platelet concentration above that of the original whole blood. A super‐mixture of key cytokines and growth factors is present in platelet granules. Thus, the application of PRP has gained unprecedented attention in regenerative medicine. The rationale underlies the utilization of PRP is that it acts as a biomaterial to deliver critical growth factors and cytokines from platelet granules to the targeted area, thus promoting regeneration in a variety of tissues. Based on enhanced understanding of cell signalling and growth factor biology, researchers have begun to use PRP treatment as a novel method to regenerate damaged tissues, including liver, bone, cartilage, tendon and dental pulp. To enable better understanding of the regenerative effects of PRP in dentistry, this review describes different methods of preparation and application of this biological product, and provides detailed explanations of the controversies and future prospects related to the use of PRP in dental regenerative medicine.
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Affiliation(s)
- J Xu
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - L Gou
- Center for Genetic Medicine, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, Jiangsu, China
| | - P Zhang
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - H Li
- Shenzhen Longgang Institute of Stomatology, Shenzhen, Guangdong, China.,Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
| | - S Qiu
- Department of Otolaryngology, Longgang E.N.T. Hospital & Shenzhen Key Laboratory of E.N.T., Institute of E.N.T, Shenzhen, Guangdong, China
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10
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Zafar MI, Mills KE, Zheng J, Regmi A, Hu SQ, Gou L, Chen LL. Low-glycemic index diets as an intervention for diabetes: a systematic review and meta-analysis. Am J Clin Nutr 2019; 110:891-902. [PMID: 31374573 DOI: 10.1093/ajcn/nqz149] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [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: 04/16/2019] [Accepted: 06/24/2019] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Low-glycemic index (GI) diets are thought to reduce postprandial glycemia, resulting in more stable blood glucose concentrations. OBJECTIVE We hypothesized that low-GI diets would be superior to other diet types in lowering measures of blood glucose control in people with type 1 or type 2 diabetes, or impaired glucose tolerance. METHODS We searched PubMed, the Cochrane Library, EMBASE, and clinical trials registries for published and unpublished studies up until 1 March, 2019. We included 54 randomized controlled trials in adults or children with impaired glucose tolerance, type 1 diabetes, or type 2 diabetes. Continuous data were synthesized using a random effects, inverse variance model, and presented as standardized mean differences with 95% CIs. RESULTS Low-GI diets were effective at reducing glycated hemoglobin (HbA1c), fasting glucose, BMI, total cholesterol, and LDL, but had no effect on fasting insulin, HOMA-IR, HDL, triglycerides, or insulin requirements. The reduction in fasting glucose and HbA1c was inversely correlated with body weight. The greatest reduction in fasting blood glucose was seen in the studies of the longest duration. CONCLUSIONS Low-GI diets may be useful for glycemic control and may reduce body weight in people with prediabetes or diabetes.
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Affiliation(s)
- Mohammad Ishraq Zafar
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Kerry E Mills
- Faculty of Science and Technology, University of Canberra, Canberra, Australia
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Anita Regmi
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Sheng Qing Hu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Lu-Lu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
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Regmi A, Liu G, Zhong X, Hu S, Ma R, Gou L, Zafar MI, Chen L. Evaluation of Serum microRNAs in Patients with Diabetic Kidney Disease: A Nested Case-Controlled Study and Bioinformatics Analysis. Med Sci Monit 2019; 25:1699-1708. [PMID: 30835718 PMCID: PMC6413564 DOI: 10.12659/msm.913265] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Diabetic kidney disease (DKD) can result in end-stage kidney disease and renal failure. This study aimed to examine the expression of serum microRNAs (miRNAs), miR-20a, miR-99b, miR-122-5p, and miR-486-5p, and to use bioinformatics data to investigate the pathways involved in DKD. MATERIAL AND METHODS Serum miRNAs were obtained from 25 healthy volunteers, 50 patients with non-complicated type 2 diabetes mellitus (T2DM), and 42 patients with T2DM and DKD. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression of serum miRNAs. Specificity and sensitivity of the association between serum miRNAs in DKD were evaluated by analysis of the receiver operating characteristic (ROC) area under the curve (AUC). Serum miRNAs and clinical parameters of the patients were compared. Bioinformatics data analysis accessed the miRNA targets involved in the pathways related to the pathogenesis of DKD. RESULTS Serum levels of miR-99b and miR-122 significantly increased, and mir-20a and miR-486 decreased in the DKD group compared with healthy controls. Serum levels of miR-20a, miR-99b, miR-486-5p, and miR-122-5p were significantly correlated with albuminuria, estimated glomerular filtration rate (eGFR), blood glucose and lipid profiles. ROC curve analysis showed that diagnostic accuracy of serum levels of miR-99b for DKD was superior to miR-486-5p, miR-122-5p, and miR-20a, resulting in AUCs of 0.895, 0.853, 0.80, and 0.697, respectively. These four miRNAs regulate several genes affecting oxidative stress, inflammation, and apoptosis. CONCLUSIONS Serum miR-99b, miR-486-5p, miR-122-5p, and miR-20a were differentially expressed in patients with T2DM and DKD and should be evaluated further as potential biomarkers for DKD.
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Affiliation(s)
- Anita Regmi
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Geng Liu
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Xueyu Zhong
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Shengqing Hu
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Rong Ma
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Luoning Gou
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Mohammad Ishraq Zafar
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - LuLu Chen
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
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Liao Y, Gou L, Chen L, Zhong X, Zhang D, Zhu H, Lu X, Zeng T, Deng X, Li Y. NADPH oxidase 4 and endothelial nitric oxide synthase contribute to endothelial dysfunction mediated by histone methylations in metabolic memory. Free Radic Biol Med 2018; 115:383-394. [PMID: 29269309 DOI: 10.1016/j.freeradbiomed.2017.12.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 11/15/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 01/17/2023]
Abstract
"Metabolic memory" is identified as a phenomenon that transient hyperglycemia can be remembered by vasculature for quite a long term even after reestablishment of normoglycemia. NADPH oxidases (Noxs) and endothelial nitric oxide synthase (eNOS) are important enzymatic sources of reactive oxygen species (ROS) in diabetic vasculature. The aim of this study is to explore the roles of epigenetics and ROS derived from Noxs and eNOS in the metabolic memory. In this study, we demonstrated that vascular ROS was continuously activated in endothelium induced by transient high glucose, as well as sustained vascular endothelial dysfunction. The Nox4 and uncoupled eNOS are the major sources of ROS, while inhibition of Nox4 and eNOS significantly attenuated oxidative stress and almost recovered the endothelial function in metabolic memory. Furthermore, the aberrant histone methylation (H3K4me1, H3K9me2, and H3K9me3) at promoters of Nox4 and eNOS are the main causes for the persistent up-regulation of these two genes. Modifying the histone methylation could reduce the expression levels of Nox4 and eNOS, thus obviously attenuating endothelial dysfunction. These results indicate that histone methylation of Nox4 and eNOS play a key role in metabolic memory and may be the potential intervention targets for metabolic memory.
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Affiliation(s)
- Yunfei Liao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lulu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Xueyu Zhong
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Dongxue Zhang
- Department of Endocrinology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Hangang Zhu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaodan Lu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tianshu Zeng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiuling Deng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuming Li
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Zafar MI, Mills K, Ye X, Blakely B, Min J, Kong W, Zhang N, Gou L, Regmi A, Hu SQ, Zheng J, Chen LL. Association between the expression of vascular endothelial growth factors and metabolic syndrome or its components: a systematic review and meta-analysis. Diabetol Metab Syndr 2018; 10:62. [PMID: 30087698 PMCID: PMC6076391 DOI: 10.1186/s13098-018-0363-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 07/30/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Several studies have linked vascular endothelial growth factors (VEGFs) with metabolic syndrome or its components. However, there has been no systematic appraisal of the findings of these studies to date. The current systematic review and meta-analysis was conducted to explore this association. METHODS PubMed, EMBASE, the Cochrane library, and clinical trials registries were used to retrieve peer-reviewed clinical studies that had evaluated the association of VEGFs with metabolic syndrome or its components without applying language and date restrictions. The final search was performed on 29 September 2017. RESULTS We included 32 studies in this systematic review and meta-analysis, of which 16 studies (19 study arms) were included in the meta-analysis and remaining studies were qualitatively assessed. Overall, VEGF-A, VEGF-B and VEGF-C were strongly associated with metabolic syndrome or its components. The components of metabolic syndrome varied in their association. Obesity was not correlated with increased VEGF-A expression (p = 0.12), whereas VEGF-B and VEGF-C expression was significantly higher in those with obesity. In contrast, hyperglycemia in type 1 diabetes was strongly associated with increased VEGF-A levels (p < 0.00001), as was type 2 diabetes (p = 0.0006). The studies included in the qualitative analysis similarly showed an increase in VEGF family expression in people with metabolic syndrome, and with its components. CONCLUSION The increased concentrations of vascular endothelial growth factors are variably associated with metabolic syndrome or its components. Each VEGF protein has a unique set of associations with the disease state.
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Affiliation(s)
- Mohammad Ishraq Zafar
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Kerry Mills
- Health Research Institute, University of Canberra, Canberra, Australia
| | - Xiaofeng Ye
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Brette Blakely
- Centre for Healthcare Resilience and Implementation Science (CHRIS), Australian Institute of Health Innovation, Macquarie University, Sydney, NSW Australia
| | - Jie Min
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Wen Kong
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Nan Zhang
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Luoning Gou
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Anita Regmi
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Sheng Qing Hu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Lu-Lu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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Gou L, Tang E, Huang X. Myoepithelial carcinoma of the salivary glands: clinicopathologic features, evaluation of intratumoral microvessel density and analysis of treatment outcomes of 14 cases. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.097] [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: 11/15/2022]
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Yang M, Shi SG, Liu W, Zhang M, Gou L, Kang YX, Liu JJ. Phenotypic variation and diversity of Magnolia sprengeri Pamp. in native habitat. Genet Mol Res 2015; 14:6495-508. [PMID: 26125854 DOI: 10.4238/2015.june.12.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The population of Magnolia sprengeri individuals deceased drastically in the late 20th century because of the widespread harvest for traditional Chinese medicinal recipes. In this study, the levels of phenotypic variation and the genetic structure of 2 populations of M. sprengeri were estimated. The phenotypic variation of M. sprengeri characteristics was nonsynchronous, with a coefficient of variation for 37 characters from 9.55-35.87%. The variance stabilizing transformation value ranged from 0.034-52.344%. The variation contribution within the population was greater than the contribution among the population; the among-population rate was 2.864%, while the within-population rate was 15.849%; values of repeatability for among-population and within-population were 0.430 and 0.098, respectively. This indicates that more variation arose from within-population and that population repeatability was much greater than individual repeatability. Variation in the flower organ was greater than that in the leaf organ; this means that vegetative variation was more stable than reproductive variation. Variation in the southern population was greater than that in the northern population.
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Affiliation(s)
- M Yang
- Northwest A&F University, Yangling, Shaanxi, China
| | - S G Shi
- Northwest A&F University, Yangling, Shaanxi, China
| | - W Liu
- Northwest A&F University, Yangling, Shaanxi, China
| | - M Zhang
- Northwest A&F University, Yangling, Shaanxi, China
| | - L Gou
- Northwest A&F University, Yangling, Shaanxi, China
| | - Y X Kang
- Northwest A&F University, Yangling, Shaanxi, China
| | - J J Liu
- Northwest A&F University, Yangling, Shaanxi, China
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Gou L, Wu Y, Yang J, Zhang X. Targeting C-Met Overexpression for Acquired Resistance to Egfr Tkis. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.58] [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: 11/14/2022] Open
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Fu X, Li S, Jia G, Gou L, Tian X, Sun L, Ling X, Lan N, Yin X, Ma R, Liu L, Liu Y. Protective effect of the nitric oxide pathway in L-citrulline renal ischaemia-reperfusion injury in rats. Folia Biol (Praha) 2013; 59:225-232. [PMID: 24485304] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To observe the protective effects of L-citrulline on the renal I/R injury and elucidate the mechanisms involved, 48 rats were randomized into eight groups: Group 1: sham operated; Group 2: I/R (45 min renal ischaemia and 24 h reperfusion); Group 3: I/R + L-citrulline (300 mg/kg, i.g.); Group 4: I/R + L-citrulline (600 mg/kg, i.g.); Group 5: I/R + L-citrulline (900 mg/kg, i.g.); Group 6: I/R + normal saline (NS, i.g.); Group 7: I/R + N sup ω nitro-L-arginine ester (L-NAME, 20 mg/kg, i.p.); Group 8: I/R + L-citrulline (900 mg/kg, i.g.) + L-NAME (20 mg/ kg, i.p.). At the end of the reperfusion period, serum was collected and the kidneys underwent histological and biochemical examinations. Our results showed that pre-treatment with L-citrulline (300, 600, and 900 mg/kg) significantly ameliorated the renal injury caused by I/R. Moreover, L-citrulline prevented induction of lipid peroxidation and increased the activity of superoxide dismutase and the levels of glutathione and nitric oxide. The I/R-induced decreases in total nitric oxide synthase activity, inducible nitric oxide activity, constitutive nitric oxide activity and endothelial nitric oxide protein expression in the renal cortex were significantly prevented. However, the L-citrulline-mediated protection was significantly antagonized by co-administration of L-NAME. These results suggested that L-citrulline administration exhibited significant protection against renal I/R injury. This protective effect, at least in part, via up-regulation of the endothelial nitric oxide protein expression and constitutive nitric oxide synthase activity, maintained production of nitric oxide at the basal level.
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Affiliation(s)
- X Fu
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - S Li
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - G Jia
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - L Gou
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Tian
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - L Sun
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Ling
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - N Lan
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Yin
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - R Ma
- School of Environment, Nanjing University, Nanjing, P. R. China
| | - L Liu
- Xuzhou Environmental Monitoring Station, Xuzhou, P. R. China, Nanjing University, Nanjing, P. R. China
| | - Y Liu
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
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Gou L, Zhang HX, Fan XY, Li DL. Synthesis, crystal structure, and luminescent property of [Zn2(Ox)3]H2L · 4H2O (L = 2,2′-(1,4-butanediyl-bis(1H-benzimidazole)). RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412080052] [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: 11/23/2022]
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Gou L, Lorenz H, Robl S, Leonhard K, Schaber K, Seidel-Morgenstern A. Integrierter Prozess zur Trennung chiraler Systeme mit Verbindungsbildung. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050380] [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: 11/10/2022]
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Zhang P, Wang CT, Yan F, Gou L, Tong AP, Cai F, Li Q, Deng HX, Wei YQ. Prokaryotic expression of a novel mouse pro-apoptosis protein PNAS-4 and application of its polyclonal antibodies. Braz J Med Biol Res 2009; 41:504-11. [PMID: 18622494 DOI: 10.1590/s0100-879x2008000600012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Accepted: 05/26/2008] [Indexed: 02/05/2023] Open
Abstract
Mouse PNAS-4 (mPNAS-4) has 96% identity with human PNAS-4 (hPNAS-4) in primary sequence and has been reported to be involved in the apoptotic response to DNA damage. However, there have been no studies reported of the biological functions of mPNAS-4. In studies conducted by our group (unpublished data), it was interesting to note that overexpression of mPNAS-4 promoted apoptotic death in Lewis lung carcinoma cells (LL2) and colon carcinoma cells (CT26) of mice both in vitro and in vivo. In our studies, mPNAS-4 was cloned into the pGEX-6P-1 vector with GST tag at N-terminal in Escherichia coli strain BL21(DE3). The soluble and insoluble expression of recombinant protein mPNAS-4 (rmPNAS-4) was temperature-dependent. The majority of rmPNAS-4 was insoluble at 37 degrees C, while it was almost exclusively expressed in soluble form at 20 degrees C. The soluble rmPNAS-4 was purified by one-step affinity purification, using a glutathione Sepharose 4B column. The rmPNAS-4 protein was further identified by electrospray ionization-mass spectrometry analysis. The search parameters of the parent and fragment mass error tolerance were set at 0.1 and 0.05 kDa, respectively, and the sequence coverage of search result was 28%. The purified rmPNAS-4 was further used as immunogen to raise polyclonal antibodies in New Zealand white rabbit, which were suitable to detect both the recombinant and the endogenous mPNAS-4 in mouse brain tissue and LL2 cells after immunoblotting and/or immunostaining. The purified rmPNAS-4 and our prepared anti-mPNAS-4 polyclonal antibodies may provide useful tools for future biological function studies for mPNAS.
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Affiliation(s)
- P Zhang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
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Miller GA, Gou L, Narayanan V, Scranton AB. Modeling of photobleaching for the photoinitiation of thick polymerization systems. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/pola.10162] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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