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Yue S, Pei L, Lai F, Xiao H, Li Z, Zeng R, Chen L, Chen W, Liu H, Li Y, Xiao H, Cao X. Genome-wide analysis study of gestational diabetes mellitus and related pathogenic factors in a Chinese Han population. BMC Pregnancy Childbirth 2023; 23:856. [PMID: 38087213 PMCID: PMC10714520 DOI: 10.1186/s12884-023-06167-3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) affects the metabolism of both the mother and fetus during and after pregnancy. Genetic factors are important in the pathogenesis of GDM, and associations vary by ethnicity. However, related studies about the relationship between the susceptibility genes and glucose traits remain limited in China. This study aimed to identify genes associated with GDM susceptibility in Chinese Han women and validate those findings using clinical data during pregnancy and postpartum period. METHODS A genome-wide association study (GWAS) of 398 Chinese Han women (199 each with and without GDM) was conducted and associations between single nucleotide polymorphisms (SNPs) and glucose metabolism were identified by searching public databases. Relationships between filtered differential SNPs and glucose metabolism were verified using clinical data during pregnancy. The GDM group were followed up postpartum to evaluate the progression of glucose metabolism. RESULTS We identified five novel SNPs with genome-wide significant associations with GDM: rs62069863 in TRPV3 gene and rs2232016 in PRMT6 gene were positive correlated with 1 h plasma glucose (1hPG) and 2 h plasma glucose (2hPG), rs1112718 in HHEX/EXOC6 gene and rs10460009 in LPIN2 gene were positive associated with fasting plasma glucose, 1hPG and 2hPG, rs927316 in GLIS3 gene was negative correlated with 2hPG. Of the 166 GDM women followed up postpartum, rs62069863 in TRPV3 gene was positively associated with fasting insulin, homoeostasis model assessment of insulin resistance. CONCLUSIONS The variants of rs62069863 in TRPV3 gene, rs2232016 in PRMT6 gene, rs1112718 in HHEX/EXOC6 gene, rs927316 in GLIS3 gene, and rs10460009 in LPIN2 gene were newly-identified susceptibility loci for GDM in the Chinese Han population. TRPV3 was associated with worse insulin resistance postpartum. TRIAL REGISTRATION This study was registered in the Chinese Clinical Trial Registry. TRIAL REGISTRATION NUMBER ChiCTR2100043762. Date of first registration: 28/02/2021.
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Affiliation(s)
- Shufan Yue
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Ling Pei
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Fenghua Lai
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Huangmeng Xiao
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Zeting Li
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Rui Zeng
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Li Chen
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Wenzhan Chen
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Huiling Liu
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Yanbing Li
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Haipeng Xiao
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Xiaopei Cao
- Department of Endocrinology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China.
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Pusch E, Krążek M, Wojciechowicz T, Sassek M, Kołodziejski PA, Strowski MZ, Nowak KW, Skrzypski M. GIP_HUMAN [22-51] Peptide Encoded by the Glucose-Dependent Insulinotropic Polypeptide (GIP) Gene Suppresses Insulin Expression and Secretion in INS-1E Cells and Rat Pancreatic Islets. Genes (Basel) 2023; 14:1910. [PMID: 37895259 PMCID: PMC10606481 DOI: 10.3390/genes14101910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/24/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
GIP_HUMAN [22-51] is a recently discovered peptide that shares the same precursor molecule with glucose-dependent insulinotropic polypeptide (GIP). In vivo, chronic infusion of GIP_HUMAN [22-51] in ApoE-/- mice enhanced the development of aortic atherosclerotic lesions and upregulated inflammatory and proatherogenic proteins. In the present study, we evaluate the effects of GIP_HUMAN [22-51] on insulin mRNA expression and secretion in insulin-producing INS-1E cells and isolated rat pancreatic islets. Furthermore, we characterize the influence of GIP_HUMAN [22-51] on cell proliferation and death and on Nf-kB nuclear translocation. Rat insulin-producing INS-1E cells and pancreatic islets, isolated from male Wistar rats, were used in this study. Gene expression was evaluated using real-time PCR. Cell proliferation was studied using a BrdU incorporation assay. Cell death was quantified by evaluating histone-complexed DNA fragments. Insulin secretion was determined using an ELISA test. Nf-kB nuclear translocation was detected using immunofluorescence. GIP_HUMAN [22-51] suppressed insulin (Ins1 and Ins2) in INS-1E cells and pancreatic islets. Moreover, GIP_HUMAN [22-51] promoted the translocation of NF-κB from cytoplasm to the nucleus. In the presence of a pharmacological inhibitor of NF-κB, GIP_HUMAN [22-51] was unable to suppress Ins2 mRNA expression. Moreover, GIP_HUMAN [22-51] downregulated insulin secretion at low (2.8 mmol/L) but not high (16.7 mmol/L) glucose concentration. By contrast, GIP_HUMAN [22-51] failed to affect cell proliferation and apoptosis. We conclude that GIP_HUMAN [22-51] suppresses insulin expression and secretion in pancreatic β cells without affecting β cell proliferation or apoptosis. Notably, the effects of GIP_HUMAN [22-51] on insulin secretion are glucose-dependent.
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Affiliation(s)
- Emily Pusch
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Małgorzata Krążek
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Tatiana Wojciechowicz
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Maciej Sassek
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Paweł A. Kołodziejski
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Mathias Z. Strowski
- Department of Hepatology and Gastroenterology, Charité-University Medicine Berlin, 13353 Berlin, Germany;
- Medical Clinic III, 15236 Frankfurt, Germany
| | - Krzysztof W. Nowak
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
| | - Marek Skrzypski
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, 60-637 Poznan, Poland; (E.P.); (M.K.); (T.W.); (M.S.); (P.A.K.); (K.W.N.)
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Jia X, Yu T, Xiao C, Sheng D, Yang M, Cheng Q, Wu J, Lian T, Zhao Y, Zhang S. Expression of transient receptor potential vanilloid genes and proteins in diabetic rat heart. Mol Biol Rep 2021; 48:1217-1223. [PMID: 33523372 DOI: 10.1007/s11033-021-06182-7] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 11/27/2022]
Abstract
Cardiac complications are leading causes of death in diabetic patients. Imbalance of Ca2+ homeostasis is a hallmark of cardiac dysfunction in diabetes, while TRPV channels are non-selective for cations and are permeable to Ca2+. Our aim was to evaluate the expression levels of TRPV1, TRPV2, TRPV3, TRPV4, TRPV5, and TRPV6 genes and proteins in cardiac tissue at 3 days and 4, 8, and 12 weeks after induction of diabetes. Sprague-Dawley rats were assigned to control and DM groups. DM was induced by intraperitoneal injection of streptozotocin (60 mg/kg). The expression levels of TRPV genes were analyzed by the quantitative reverse transcription polymerase chain reaction, and TRPV proteins were determined by western blotting. Compared to controls, the expression levels of TRPV2, TRPV3, and TRPV6 in diabetic myocardium did not change, while TRPV1 decreased at 4, 8, and 12 weeks, TRPV4 was upregulated at 3 days and 4, 8, and 12 weeks, TRPV5 mRNA increased at 8 and 12 weeks, and TRPV5 protein increased at 4, 8, and 12 weeks. Our findings showed that TRPV1, TRPV4, and TRPV5 are associated with the diabetic heart.
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Affiliation(s)
- Xiaoli Jia
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Tao Yu
- Renhe Hospital of China Three Gorges University, Yichang, China
| | - Chao Xiao
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Deqiao Sheng
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Mengcheng Yang
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Quanyi Cheng
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Jing Wu
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Ting Lian
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China
| | - Yun Zhao
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China.
| | - Shizhong Zhang
- Department of Physiology, Medical Science College of China Three Gorges University, Yichang, China.
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Billert M, Sassek M, Wojciechowicz T, Jasaszwili M, Strowski MZ, Nowak KW, Skrzypski M. Neuropeptide B stimulates insulin secretion and expression but not proliferation in rat insulin‑producing INS‑1E cells. Mol Med Rep 2019; 20:2030-2038. [PMID: 31257494 DOI: 10.3892/mmr.2019.10415] [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] [Received: 01/29/2019] [Accepted: 05/24/2019] [Indexed: 11/06/2022] Open
Abstract
Neuropeptide B (NPB) regulates food intake, body weight and energy homeostasis by interacting with NPBW1/NPBW2 in humans and NPBW1 in rodents. NPB and NPBW1 are widely expressed in the central nervous system and peripheral tissues including pancreatic islets. Although previous studies have demonstrated a prominent role for NPB and NPBW1 in controlling glucose and energy homeostasis, it remains unknown as to whether NPB modulates pancreatic β‑cell functions. Therefore, the aim of the present study was to investigate the effects of NPB on insulin expression and secretion in vitro. Furthermore, the role of NPB in the modulation of INS‑1E cell growth, viability and death was examined. Gene expression was assessed by reverse transcription‑quantitative PCR. Cell proliferation and viability were determined by BrdU or MTT tests, respectively. Apoptotic cell death was evaluated by relative quantification histone‑complexed DNA fragments (mono‑and oligonucleosomes). Insulin secretion was studied using an ELISA test. Protein phosphorylation was assessed by western blot analysis. NPB and NPBW1 mRNA was expressed in INS‑1E cells and rat pancreatic islets. In INS‑1E cells, NPB enhanced insulin 1 mRNA expression via an ERK1/2‑dependent mechanism. Furthermore, NPB stimulated insulin secretion from INS‑1E cells and rat pancreatic islets. By contrast, NPB failed to affect INS‑1E cell growth or death. We conclude that NPB may regulate insulin secretion and expression in INS‑1E cells and insulin secretion in rat pancreatic islets.
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Affiliation(s)
- Maria Billert
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
| | - Maciej Sassek
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
| | - Tatiana Wojciechowicz
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
| | - Mariami Jasaszwili
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
| | - Mathias Z Strowski
- Department of Hepatology and Gastroenterology, Charité‑University Medicine Berlin, D‑13353 Berlin, Germany
| | - Krzysztof W Nowak
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
| | - Marek Skrzypski
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, 60‑637 Poznań, Poland
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