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Chang L, Liu Y, Gu Y, Yan S, Ding L, Liu M, He Q. Inadequate Glucagon Suppression During OGTT in Prediabetes: A Systematic Review and Meta-analysis. J Clin Endocrinol Metab 2024; 109:2673-2680. [PMID: 38963886 DOI: 10.1210/clinem/dgae460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/14/2024] [Accepted: 07/02/2024] [Indexed: 07/06/2024]
Abstract
CONTEXT Glucagon plays a role in the development of type 2 diabetes, yet its role in prediabetes (preDM) remains uncertain. OBJECTIVE To evaluate glucagon levels in the fasting state and its response to glucose inhibition in preDM through meta-analysis. METHODS A systematic search across Pubmed, Embase, Web of Science, and Cochrane Library identified studies assessing glucagon levels during 75 g oral glucose tolerance test (OGTT) in both preDM and normal glucose tolerance (NGT) cohorts. Data on glucagon, glucose, and insulin were pooled using a random-effect model. RESULTS Although glucagon levels decreased in both preDM and NGT groups upon glucose challenge, glucagon levels at 0 hours, 0.5 hours, 1 hour, and 1.5 hours in preDM were significantly higher compared to NGT, despite higher glucose levels at all time points and higher insulin levels at 0 hours, 1 hour, 1.5 hours, and 2 hours during OGTT. Subgroup analysis revealed that in studies using the radioimmunoassay method, glucagon levels in preDM were higher at 0.5 hours and 1 hour than NGT, while in studies using the ELISA method, glucagon levels were similar to those of the NGT group despite higher glucose in preDM compared to NGT. Fasting glucagon level was inadequately suppressed in both impaired glucose tolerance (IGT) and impaired fasting glucose (IFG). Responsiveness to glucose inhibition was preserved in IFG, while glucagon level in IGT group at 0.5 hours after glucose intake was not suppressed and was higher than NGT. CONCLUSION Glucagon was not adequately suppressed during OGTT in preDM. Glucagon dysregulation is a contributing mechanism underlying both IFG and IGT.
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Affiliation(s)
- Lina Chang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ying Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yian Gu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Siyu Yan
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Li Ding
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ming Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Qing He
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China
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Pappa E, Busygina K, Harada S, Hermann H, Then C, Lechner A, Ferrari U, Seissler J. Association of GLP-1 secretion with parameters of glycemic control in women after gestational diabetes mellitus. BMJ Open Diabetes Res Care 2024; 12:e003706. [PMID: 38199777 PMCID: PMC10806896 DOI: 10.1136/bmjdrc-2023-003706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
INTRODUCTION Women with a history of gestational diabetes mellitus (GDM) are at high risk of developing type 2 diabetes, while the exact mechanisms underlying its pathophysiology are still unclear. We investigated the association of glucagon-like peptide-1 (GLP-1) response to oral glucose with parameters of glycemic control in women with previous GDM in the prospective PPSDiab (Prediction, Prevention, and Subclassification of Type 2 Diabetes) study. RESEARCH DESIGN AND METHODS Glucose metabolism parameters and GLP-1 secretion were analyzed during oral glucose tolerance test (OGTT) in women with previous GDM (n=129) and women with a history of normal glucose tolerance (n=67) during pregnancy (controls). First- and second-phase insulin and GLP-1 secretion in relation to plasma glucose (PG) levels were assessed, and development of pre-diabetes was analyzed after 5-year follow-up among women with previous GDM and a normal glycemic state at baseline (n=58). RESULTS The area under the curve (AUC during the OGTT 0-120 min) of PG and insulin but not GLP-1 differed significantly between post-GDM women and controls. However, women with previous GDM had a significantly decreased GLP-1 response in relation to PG and plasma insulin during the second phase of the OGTT. After a follow-up of 5 years, 19.0% post-GDM women with a normal glycemic state at the baseline visit developed abnormal glucose metabolism. The total, first- and second-phase AUC GLP-1/PG and GLP-1/insulin ratios were not associated with development of abnormal glucose tolerance. CONCLUSIONS Women with previous GDM showed a reduced GLP-1 response in relation to PG and insulin concentrations indicating early abnormalities in glucose metabolism. However, the altered GLP-1 response to oral glucose did not predict progression to pre-diabetes and type 2 diabetes in the first 5 years after GDM.
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Affiliation(s)
- Eleni Pappa
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Kristina Busygina
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Saori Harada
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- Institute for Medical Information Processing, Biometry and Epidemiology (IBE), LMU Medizinische Fakultät, Munich, Germany
| | - Hana Hermann
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
| | - Cornelia Then
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Andreas Lechner
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Uta Ferrari
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Jochen Seissler
- Diabetes Zentrum - Campus Innenstadt, LMU Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Germany
- German Center for Diabetes Research, Neuherberg, Germany
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Kang YE, Yi HS, Yeo MK, Kim JT, Park D, Jung Y, Kim OS, Lee SE, Kim JM, Joung KH, Lee JH, Ku BJ, Lee M, Kim HJ. Increased Pro-Inflammatory T Cells, Senescent T Cells, and Immune-Check Point Molecules in the Placentas of Patients With Gestational Diabetes Mellitus. J Korean Med Sci 2022; 37:e338. [PMID: 36513052 PMCID: PMC9745681 DOI: 10.3346/jkms.2022.37.e338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/22/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) is the most common metabolic complication of pregnancy. To define the altered pathway in GDM placenta, we investigated the transcriptomic profiles from human placenta between GDM and controls. METHODS Clinical parameters and postpartum complications were reviewed in all participants. Differentially expressed canonical pathways were analyzed between the GDM and control groups based on transcriptomic analysis. CD4+ T, CD8+ T, and senescent T cell subsets were determined by flow cytometry based on staining for specific intracellular cytokines. RESULTS Gene ontology analysis revealed that the placenta of GDM revealed upregulation of diverse mitochondria or DNA replication related pathways and downregulation of T-cell immunity related pathways. The maternal placenta of the GDM group had a higher proportion of CD4+ T and CD8+ T cells than the control group. Interestingly, senescent CD4+ T cells tended to increase and CD8+ T cells were significantly increased in GDM compared to controls, along with increased programmed cell death-1 (CD274+) expression. Programmed death-ligand 1 expression in syncytotrophoblasts was also significantly increased in patients with GDM. CONCLUSION This study demonstrated increased proinflammatory T cells, senescent T cells and immune-check point molecules in GDM placentas, suggesting that changes in senescent T cells and immune-escape signaling might be related to the pathophysiology of GDM.
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Affiliation(s)
- Yea Eun Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyon-Seung Yi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
- Laboratory of Endocrinology and Immune System, Chungnam National University College of Medicine, Daejeon, Korea
| | - Min-Kyung Yeo
- Department of Pathology, Chungnam National University College of Medicine, Daejeon, Korea
| | - Jung Tae Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Danbit Park
- Department of Obstetrics and Gynecology, Chungnam National University Hospital, Daejeon, Korea
| | - Yewon Jung
- Department of Obstetrics and Gynecology, Chungnam National University Sejong Hospital, Sejong, Korea
| | - Ok Soon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Seong Eun Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ji Min Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Kyong Hye Joung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ju Hee Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Bon Jeong Ku
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Mina Lee
- Department of Obstetrics and Gynecology, Chungnam National University College of Medicine, Daejeon, Korea.
| | - Hyun Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea.
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Reyes-López R, Pérez-Luque E, Malacara JM. Metabolic, hormonal characteristics and genetic variants of TCF7L2 associated with development of gestational diabetes mellitus in Mexican women. Diabetes Metab Res Rev 2014; 30:701-6. [PMID: 24639413 DOI: 10.1002/dmrr.2538] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 02/06/2014] [Accepted: 03/03/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Variation in TCF7L2 gene is associated with type 2 diabetes and with gestational diabetes mellitus in several populations, but there are no data in Mexican women with gestational diabetes mellitus. In this study, we examined metabolic and hormonal measurements as well as TCF7L2 genetic variants. METHODS We selected 108 pregnant women with normal glucose tolerance and 90 with gestational diabetes mellitus according to 2010 American Diabetes Association criteria matched for gestational week. We collected data on blood pressure, body mass index (BMI) and concentrations of blood glucose, HbA1c , lipids profile, insulin and glucagon-like peptide-1 (GLP-1). The genotyping of rs7903146 and rs12255372 polymorphisms were made with polymerase chain reaction-restriction fragment length polymorphism. RESULTS Actual and pre-gestational BMI, fasting glucose and HbA1c were higher (p < 0.001), and high-density lipoprotein cholesterol was lower (p < 0.02) in gestational diabetes mellitus women than euglycemic women. No significant differences were found for lipids, insulin and homeostasis model assessment-insulin resistance. Gestational diabetes mellitus women had high GLP-1 levels (32 vs 24, p < 0.004) and decreased β-cell function (266 vs 438, p < 0.001). The frequency of rs12255372 risk allele in gestational diabetes women was significantly higher than that in euglycemic women (χ² = 8.96; p < 0.003) and confers a risk for gestational diabetes mellitus (OR = 9.1, 95% CI 2.8-29, p < 0.0002; and OR = 4.3, 95% CI 1.6-11.4, p < 0.003 based on dominant and co-dominant model, respectively). The generalized linear model showed that low beta function, high pre-gestational BMI and rs12255372 risk allele are independently associated with gestational diabetes. CONCLUSIONS The elevated GLP-1 levels in gestational diabetes women suggested some abnormality in insulin secretion. The low β-cell function, high pre-gestational BMI and rs12255372 risk allele are risk factors independently associated with the development of gestational diabetes.
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Affiliation(s)
- Ruth Reyes-López
- Departamento de Ciencias Médicas, División Ciencias de la Salud, Universidad de Guanajuato, 20 de Enero 929, Colonia Obregón, León, Guanajuato, 37320, Mexico
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Kim M, Oh TJ, Lee JC, Choi K, Kim MY, Kim HC, Cho YM, Kim S. Simulation of oral glucose tolerance tests and the corresponding isoglycemic intravenous glucose infusion studies for calculation of the incretin effect. J Korean Med Sci 2014; 29:378-85. [PMID: 24616587 PMCID: PMC3945133 DOI: 10.3346/jkms.2014.29.3.378] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/04/2013] [Indexed: 12/25/2022] Open
Abstract
The incretin effect, which is a unique stimulus of insulin secretion in response to oral ingestion of nutrients, is calculated by the difference in insulin secretory responses from an oral glucose tolerance test (OGTT) and a corresponding isoglycemic intravenous glucose infusion (IIGI) study. The OGTT model of this study, which is individualized by fitting the glucose profiles during an OGTT, was developed to predict the glucose profile during an IIGI study in the same subject. Also, the model predicts the insulin and incretin profiles during both studies. The incretin effect, estimated by simulation, was compared with that measured by physiologic studies from eight human subjects with normal glucose tolerance, and the result exhibited a good correlation (r > 0.8); the incretin effect from the simulation was 56.5% ± 10.6% while the one from the measured data was 52.5% ± 19.6%. In conclusion, the parameters of the OGTT model have been successfully estimated to predict the profiles of both OGTTs and IIGI studies. Therefore, with glucose data from the OGTT alone, this model could control and predict the physiologic responses, including insulin secretion during OGTTs and IIGI studies, which could eventually eliminate the need for complex and cumbersome IIGI studies in incretin research.
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Affiliation(s)
- Myeungseon Kim
- Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul, Korea
| | - Tae Jung Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jung Chan Lee
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University Hospital, Seoul, Korea
| | - Karam Choi
- Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul, Korea
| | - Min Young Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hee Chan Kim
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University Hospital, Seoul, Korea
| | - Young Min Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sungwan Kim
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Engineering, Seoul National University Hospital, Seoul, Korea
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Bonde L, Vilsbøll T, Nielsen T, Bagger JI, Svare JA, Holst JJ, Larsen S, Knop FK. Reduced postprandial GLP-1 responses in women with gestational diabetes mellitus. Diabetes Obes Metab 2013; 15:713-20. [PMID: 23406269 DOI: 10.1111/dom.12082] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 10/24/2012] [Accepted: 01/20/2013] [Indexed: 01/23/2023]
Abstract
AIM We investigated postprandial glucagon-like peptide-1 (GLP-1) responses in pregnant women with and without gestational diabetes mellitus (GDM) and again following delivery when normal glucose tolerance (NGT) was re-established. METHODS Eleven women with GDM [plasma glucose (PG) concentration at 120 min after a 75-g oral glucose tolerance test (OGTT): 10.0 ± 0.9 mM (mean ± SD); age: 31 ± 6 years; body mass index (BMI): 31.6 ± 6.4 kg/m(2) ; haemoglobin A1c (HbA1c): 5.6 ± 0.5%] and eight pregnant women with NGT (PG(120 min), OGTT : 5.7 ± 0.7 mM; age: 28 ± 3 years; BMI: 29.7 ± 5.4 kg/m(2) ; HbA1c: 5.4 ± 0.3%) were investigated with a 4-h liquid meal test during third trimester (TT) and 3-4 months postpartum (PP). All patients with GDM re-established NGT following delivery. RESULTS Pregnancy was associated with low postprandial GLP-1 responses. Patients with GDM exhibited reduced postprandial GLP-1 responses compared to their PP levels [area under curve (AUC): 5.5 ± 1.3 vs. 8.4 ± 3.2 nM × min, p=0.005], but the difference among NGT women (7.3 ± 2.8 vs. 8.8 ± 2.0 nM × min, p=0.066) was not statistically significant. Pregnancy did not influence postprandial responses of the other incretin hormone glucose-dependent insulinotropic polypeptide (GIP) in any of the groups, but GDM patients were characterized by greater postprandial GIP responses during both TT and PP compared to NGT subjects. CONCLUSIONS Pregnancy is associated with reduced postprandial GLP-1 responses (most pronounced in patients with GDM) that normalize after delivery. In contrast, postprandial GIP responses seem unaffected by pregnancy but is increased in GDM patients.
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Affiliation(s)
- L Bonde
- Department of Internal Medicine, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
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Women with normal glucose tolerance and a history of gestational diabetes show significant impairment of β-cell function at normal insulin sensitivity. DIABETES & METABOLISM 2013; 39:155-62. [PMID: 23369626 DOI: 10.1016/j.diabet.2012.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 11/21/2012] [Accepted: 11/24/2012] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Although the nature of gestational diabetes mellitus (GDM) remains unclear, the condition is thought to be related primarily to insulin resistance, overweight and obesity. Most studies include women with a history of GDM and later carbohydrate metabolism abnormalities, while reports of women with previous GDM and subsequent normoglycaemia are scarce. The aim of this study was to assess insulin resistance and β-cell function in normoglycaemic women with a history of GDM. MATERIALS AND METHODS The study group included 199 women, aged 38.4±6.6 years, diagnosed with GDM within the last 5-12 years [GDM(+)] and a control group of 50 comparable women in whom GDM was excluded [GDM(-)], according to WHO criteria. Blood glucose and insulin levels were measured at the beginning (fasting) and at 60 and 120min of oral glucose tolerance tests. Indices of insulin resistance (HOMA-IR), insulin sensitivity (HOMA-S%) and β-cell function (HOMA-B%) were calculated. RESULTS Normoglycaemia was observed in 57% of GDM(+) and 88% of GDM(-) women (P=0.0003). Diabetes was diagnosed in 13 (6.5%) GDM(+) women and in none of the GDM(-) women. Comparison of 113 normoglycaemic GDM(+) and 44 normoglycaemic GDM(-) women revealed significantly impaired β-cell function (HOMA-B%: 131.1±51.1 vs 144.7±47.1, respectively; P=0.038) with similar normal body mass index (BMI) and no differences in HOMA-IR and HOMA-S%. CONCLUSION In this study, more than half of the GDM(+) women were presented with normal glucose tolerance. However, despite normoglycaemia, women with a history of GDM were characterized by significantly impaired insulin secretion, but no signs of increased insulin resistance.
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