scholarly journals Epigenetic Modifications Associated with Exposure to Endocrine Disrupting Chemicals in Patients with Gestational Diabetes Mellitus

2021 ◽  
Vol 22 (9) ◽  
pp. 4693
Author(s):  
Mateusz Kunysz ◽  
Olimpia Mora-Janiszewska ◽  
Dorota Darmochwał-Kolarz

Gestational diabetes mellitus (GDM) remains a significant clinical and public health issue due to its increasing prevalence and the possibility for numerous short- and long-term complications. The growing incidence of GDM seems to coincide with the widespread use of endocrine disrupting chemicals (EDCs). The extensive production and common use of these substances in everyday life has resulted in constant exposure to harmful substances from the environment. That may result in epigenetic changes, which may manifest themselves also after many years and be passed on to future generations. It is important to consider the possible link between environmental exposure to endocrine disrupting chemicals (EDCs) during pregnancy, epigenetic mechanisms and an increased risk for developing gestational diabetes mellitus (GDM). This manuscript attempts to summarize data on epigenetic changes in pregnant women suffering from gestational diabetes in association with EDCs. There is a chance that epigenetic marks may serve as a tool for diagnostic, prognostic, and therapeutic measures.

2021 ◽  
Vol 10 (4) ◽  
pp. 835
Author(s):  
Manoja P. Herath ◽  
Jeffrey M. Beckett ◽  
Andrew P. Hills ◽  
Nuala M. Byrne ◽  
Kiran D. K. Ahuja

Exposure to untreated gestational diabetes mellitus (GDM) in utero increases the risk of obesity and type 2 diabetes in adulthood, and increased adiposity in GDM-exposed infants is suggested as a plausible mediator of this increased risk of later-life metabolic disorders. Evidence is equivocal regarding the impact of good glycaemic control in GDM mothers on infant adiposity at birth. We systematically reviewed studies reporting fat mass (FM), percent fat mass (%FM) and skinfold thicknesses (SFT) at birth in infants of mothers with GDM controlled with therapeutic interventions (IGDMtr). While treating GDM lowered FM in newborns compared to no treatment, there was no difference in FM and SFT according to the type of treatment (insulin, metformin, glyburide). IGDMtr had higher overall adiposity (mean difference, 95% confidence interval) measured with FM (68.46 g, 29.91 to 107.01) and %FM (1.98%, 0.54 to 3.42) but similar subcutaneous adiposity measured with SFT, compared to infants exposed to normal glucose tolerance (INGT). This suggests that IGDMtr may be characterised by excess fat accrual in internal adipose tissue. Given that intra-abdominal adiposity is a major risk factor for metabolic disorders, future studies should distinguish adipose tissue distribution of IGDMtr and INGT.


Author(s):  
Yi Wang ◽  
Fengjiang Sun ◽  
Ping Wu ◽  
Yichao Huang ◽  
Yi Ye ◽  
...  

Abstract Context While the associations between thyroid markers and gestational diabetes mellitus (GDM) have been extensively studied, the results are inconclusive and the mechanisms remain unclear. Objective We aimed to investigate the prospective associations of thyroid markers in early gestation with GDM risk, and examine the mediating effects through lipid species. Methods This study included 6068 pregnant women from the Tongji-Shuangliu Birth Cohort. Maternal serum thyroid markers (free triiodothyronine (fT3), free thyroxine (fT4), thyroid-stimulating hormone, thyroid peroxidase antibody, and thyroglobulin antibody) were measured before 15 weeks. Deiodinase activity was assessed by fT3/fT4 ratio. Plasma lipidome were quantified in a subset of 883 participants. Results Mean age of the participants was 26.6 ± 3.7 years, and mean gestational age was 10.3 ± 2.0 weeks. Higher levels of fT4 were associated with a decreased risk of GDM (OR=0.73 comparing the extreme quartiles; 95% CI 0.54, 0.98, Ptrend =0.043), while higher fT3/fT4 ratio was associated with an increased risk of GDM (OR=1.43 comparing the extreme quartiles; 95% CI 1.06, 1.93, Ptrend =0.010) after adjusting for potential confounders. Multiple linear regression suggested that fT3/fT4 ratio was positively associated with alkylphosphatidylcholine 36:1, phosphatidylethanolamine plasmalogen 38:6, diacylglyceride 18:0/18:1, sphingomyelin 34:1, and phosphatidylcholine 40:7 (false discovery rate adjusted P<0.05). Mediation analysis indicated 67.9% of the association between fT3/fT4 ratio and GDM might be mediated through the composite effect of these lipids. Conclusions Lower concentration of serum fT4 or higher fT3/fT4 ratio in early pregnancy was associated with an increased risk of GDM. The association of fT3/fT4 ratio with GDM was largely mediated by specific lipid species.


2017 ◽  
Vol 10 (3) ◽  
pp. 120-124 ◽  
Author(s):  
Margaret Bublitz ◽  
Suzanne De La Monte ◽  
Susan Martin ◽  
Lucia Larson ◽  
Ghada Bourjeily

Background Women with childhood maltreatment histories are at increased risk for adverse birth outcomes. Mechanisms explaining this link are poorly understood. Past research is limited by sampling pregnant women at low risk for adverse maternal and neonatal outcomes. Methods This pilot study was a secondary data analysis of 24 women with gestational diabetes mellitus; 17% of the sample also reported a maltreatment history. Women provided a blood sample to measure inflammatory cytokines and insulin resistance, and saliva samples to measure diurnal cortisol. Birth outcomes for past and current pregnancies were recorded. Results Histories of maltreatment were associated with elevated interleukin-15 and a marginally greater incidence of preterm delivery in current and past pregnancies. Conclusions This pilot study was the first to demonstrate an association between childhood maltreatment history and inflammatory cytokine levels in pregnant women diagnosed with gestational diabetes mellitus.


2021 ◽  
Author(s):  
Brittany R. Allman ◽  
Samantha McDonald ◽  
Linda May ◽  
Amber W. Kinsey ◽  
Elisabet Børsheim

Gestational diabetes mellitus (GDM) poses a significant threat to the short- and long-term health of the mother and baby. Pharmacological treatments for GDM do not fully correct the underlying problem of the disease; however, non-pharmacological treatments such as exercise are increasingly recognized as foundational to glycemic management in other populations with disordered glucose regulation, such as non-gravid women with type II diabetes mellitus (T2DM). Much of the research regarding the impact of exercise on glycemic control in T2DM leverages aerobic training as the primary modality; yet research has demonstrated the effectiveness of resistance training on improving glycemic control in T2DM. This chapter will review the rationale for resistance training in the management of GDM using evidence from individuals with T2DM; then the chapter will review available studies on the effectiveness of resistance training on glucose control in women with GDM.


2021 ◽  
Vol 12 ◽  
Author(s):  
Yoshifumi Kasuga ◽  
Tomoko Kawai ◽  
Kei Miyakoshi ◽  
Yoshifumi Saisho ◽  
Masumi Tamagawa ◽  
...  

The detection of epigenetic changes associated with neonatal hypoglycaemia may reveal the pathophysiology and predict the onset of future diseases in offspring. We hypothesized that neonatal hypoglycaemia reflects the in utero environment associated with maternal gestational diabetes mellitus. The aim of this study was to identify epigenetic changes associated with neonatal hypoglycaemia. The association between DNA methylation using Infinium HumanMethylation EPIC BeadChip and neonatal plasma glucose (PG) level at 1 h after birth in 128 offspring born at term to mothers with well-controlled gestational diabetes mellitus was investigated by robust linear regression analysis. Cord blood DNA methylation at 12 CpG sites was significantly associated with PG at 1 h after birth after adding infant sex, delivery method, gestational day, and blood cell compositions as covariates to the regression model. DNA methylation at two CpG sites near an alternative transcription start site of ZNF696 was significantly associated with the PG level at 1 h following birth (false discovery rate-adjusted P < 0.05). Methylation levels at these sites increased as neonatal PG levels at 1 h after birth decreased. In conclusion, gestational diabetes mellitus is associated with DNA methylation changes at the alternative transcription start site of ZNF696 in cord blood cells. This is the first report of DNA methylation changes associated with neonatal PG at 1 h after birth.


2021 ◽  
Vol 8 ◽  
Author(s):  
Wendy N. Phoswa

Purpose of the Review: The main objective of this study is to investigate mechanisms associated with gestational diabetes mellitus (GDM) and hypertensive disorders of pregnancy (HDP) in HIV infected pregnant women by looking how placental hormones such as (progesterone and prolactin) and basic haemostatic parameters are regulated in HIV infected pregnancies.Recent Findings: HIV/AIDS are a major global obstetric health burden that lead to increased rate of morbidity and mortality. HIV/AIDS has been associated with the pathophysiology of GDM and HDP. Increased risk of GDM due to highly active antiretroviral therapy (HAART) usage has been reported in HIV infected pregnancies, which causes insulin resistance in both pregnant and non-pregnant individuals. HAART is a medication used for lowering maternal antepartum viral load and pre-exposure and post-exposure prophylaxis of the infant. In pregnant women, HAART induces diabetogenic effect by causing dysregulation of placental hormones such as (progesterone and prolactin) and predispose HIV infected women to GDM. In addition to HIV/AIDS and GDM, Studies have indicated that HIV infection causes haemostatic abnormalities such as hematological disorder, deregulated haematopoiesis process and the coagulation process which results in HDP.Summary: This study will help on improving therapeutic management and understanding of the pathophysiology of GDM and HDP in the absence as well as in the presence of HIV infection by reviewing studies reporting on these mechanism.


2018 ◽  
Vol 19 (10) ◽  
pp. 3001 ◽  
Author(s):  
Żaneta Kimber-Trojnar ◽  
Jolanta Patro-Małysza ◽  
Katarzyna Skórzyńska-Dziduszko ◽  
Jan Oleszczuk ◽  
Marcin Trojnar ◽  
...  

Women with a previous history of gestational diabetes mellitus (GDM) have a significantly increased risk of developing type 2 diabetes, obesity, and cardiovascular diseases in the future. The aim of the study was to evaluate ghrelin concentrations in serum and urine in the GDM group in the early post-partum period, with reference to laboratory results, body composition, and hydration status. The study subjects were divided into two groups, that is, 28 healthy controls and 26 patients with diagnosed GDM. The maternal body composition and hydration status were evaluated by the bioelectrical impedance analysis (BIA) method. The concentrations of ghrelin in the maternal serum and urine were determined via enzyme-linked immunosorbent assay (ELISA). The laboratory and BIA results of the mothers with GDM were different from those without GDM. Urine ghrelin positively correlated with serum ghrelin and high-density lipoprotein cholesterol (HDL) levels in healthy mothers. There were direct correlations between urine ghrelin and HDL as well as triglycerides levels in the GDM group. Neither the lean tissue index nor body cell mass index were related to the serum ghrelin concentrations in this group. Only the urine ghrelin of healthy mothers correlated with the fat tissue index. Our results draw attention to urine as an easily available and appropriable biological material for further studies.


2020 ◽  
Author(s):  
Adnette Fagninou ◽  
Magloire Pandoua Nekoua ◽  
Salomon Ezéchiel Mahougnon Fiogbe ◽  
Kabirou Moutairou ◽  
Akadiri YESSOUFOU

Abstract Background : Immunological and biochemical parameters are gaining more and more importance in the prognosis of diabetes and its complications. Here we assessed the predictive power of immunological parameters correlated with biochemical ones in gestational diabetes mellitus (GDM). Material and Methods : 217 pregnant women were screened for GDM between the 2 nd and the 3 rd trimester of gestation, based on IAGDP methods in this cross-sectional descriptive study. Immunological and biochemical parameters were determined using appropriate methods. Receiver operating characteristics (ROC) curve analyses were conducted to assess the optimal cutoff and value of immunological to biochemical parameter ratios for predicting GDM. Results : 11.90% of pregnant women were diagnosed GDM positive. Serum glucose levels, total cholesterol, LDL-cholesterol, triglycerides and total proteins were significantly increased while HDL-cholesterol decreased in women with GDM compared to controls. The levels of glycosylated hemoglobin and creatinine, as well as transaminase (AST and ALT) activities did not significantly differ between GDM and pregnant controls. Total leucocytes (white blood cell), lymphocyte and platelet numbers were significantly higher in women with GDM than in pregnant controls. We also found that the lymphocyte:HDL-C, monocyte:HDL-C and granulocyte:HDL-C ratios were significantly higher in women with GDM than in pregnant controls ( p = 0.001; p = 0.009 and p = 0.004 respectively). Women with a lymphocyte:HDL-C ratio greater than 3.66 had a 4-fold increased risk of developing GDM than those with lower ratios (odds ratio 4.00; 95% CI: 1.094 – 14.630; p =0.041). Conclusion : The lymphocyte:HDL-C, monocyte:HDL-C and granulocyte:HDL-C ratios may represent valuable makers, and the lymphocyte:HDL-C ratio in particular may have strong predictive power for GDM. This ratio can be easily assessed in patients.


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