scholarly journals The Predictive Ability of Two Triglyceride-Associated Indices for Gestational Diabetes Mellitus and Large for Gestational Age Infant Among Chinese Pregnancies: A Preliminary Cohort Study

2020 ◽  
Vol Volume 13 ◽  
pp. 2025-2035
Author(s):  
Peng Ju Liu ◽  
Yanping Liu ◽  
Liangkun Ma ◽  
Ai Min Yao ◽  
Xiao Yan Chen ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Cohort Study ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Gestational Age ◽  
Predictive Ability ◽  
Large For Gestational Age

scholarly journals Differential Changes in Akt and AMPK Phosphorylation Regulating mTOR Activity in the Placentas of Pregnancies Complicated by Fetal Growth Restriction and Gestational Diabetes Mellitus With Large-For-Gestational Age Infants

2021 ◽  
Vol 8 ◽  
Author(s):  
Tai-Ho Hung ◽  
Chung-Pu Wu ◽  
Szu-Fu Chen
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Pregnant Women ◽  
Fetal Growth ◽  
Gestational Age ◽  
Fetal Growth Restriction ◽  
Large For Gestational Age ◽  
Mtor Phosphorylation ◽  
Mtor Activity

Background: Dysregulation of placental mechanistic target of rapamycin (mTOR) activity has been implicated in the pathophysiology of pregnancies complicated by idiopathic fetal growth restriction (FGR) and gestational diabetes mellitus (GDM) with large-for-gestational-age (LGA) infants. However, the underlying mechanisms remain unclear.Methods: We obtained placentas from women with normal pregnancies (n = 11) and pregnancies complicated by FGR (n = 12) or GDM with LGA infants (n = 12) to compare the levels of total and phosphorylated forms of Akt, AMPK, TSC2, and mTOR among the three groups and used primary cytotrophoblast cells isolated from 30 normal term placentas to study the effects of oxygen–glucose deprivation (OGD) and increasing glucose concentrations on the changes of these factors in vitro.Results: Placentas from FGR pregnancies had lower phosphorylated Akt (p-Akt) levels (P < 0.05), higher p-AMPKα levels (P < 0.01), and lower mTOR phosphorylation (P < 0.05) compared to that of normal pregnant women. Conversely, women with GDM and LGA infants had higher p-Akt (P < 0.001), lower p-AMPKα (P < 0.05), and higher p-mTOR levels (P < 0.05) in the placentas than normal pregnant women. Furthermore, primary cytotrophoblast cells subjected to OGD had lower p-Akt and p-mTOR (both P < 0.05) and higher p-AMPKα levels (P < 0.05) than those cultured under standard conditions, but increasing glucose concentrations had opposite effects on the respective levels. Administering compound C, an AMPK inhibitor, did not significantly affect Akt phosphorylation but partially reversed mTOR phosphorylation. Administering LY294002, an Akt inhibitor, decreased p-mTOR levels, but did not change the levels of total and phosphorylated AMPKα.Conclusion: These results suggest that Akt and AMPK are involved in the regulation of trophoblast mTOR activity in the placentas of pregnancies complicated by FGR and GDM with LGA infants.

scholarly journals Maternal Body Mass Index and Ethnicity in Relation to The Adverse Outcomes of Large for Gestational Age and Gestational Diabetes Mellitus in a Retrospective Cohort of Australian Pregnant Women.

2021 ◽  
Author(s):  
Catherine Knight-Agarwal ◽  
Jani Rati ◽  
Meisa Al-Foraih ◽  
Dionne Eckley ◽  
Carrie Ka Wai Lui ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Body Mass Index ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Body Mass ◽  
Gestational Age ◽  
Retrospective Cohort ◽  
Adverse Outcomes ◽  
Large For Gestational Age ◽  
Maternal Body Mass Index

Abstract Background: The prevalence of maternal overweight and obesity has been increasing. This research explored the association between maternal body mass index and ethnicity in relation to the adverse outcomes of large for gestational age and gestational diabetes mellitus. Method: A retrospective cohort study was undertaken with 27 814 Australian women of various ethnicities, who gave birth to a singleton infant between 2008 and 2017. Variables were examined using logistic regression. Results: A significantly higher proportion of large for gestational age infants were born to overweight and obese women compared to those who were classified as underweight and healthy weight. Asian-born women with a body mass index of ≥ 40kg/m2 had an adjusted odds ratio of 9.926 (3.859 - 25.535) for birthing a large for gestational age infant whereas Australian-born women had an adjusted odds ratio of 2.661 (2.256 - 3.139) for the same outcome. Women born in Australia were at high risk of birthing a large for gestational age infant in the presence of insulin controlled gestational diabetes mellitus, but this risk was not significant for those with the diet-controlled type. Asian-born women did not present an elevated risk of birthing a large for gestational infant, in either the diet controlled, or insulin controlled gestational diabetes mellitus groups. Conclusion: Large for gestational age and gestational diabetes mellitus are adverse pregnancy outcomes that can lead to significant maternal and neonatal morbidity. Women who are overweight or obese, and considering a pregnancy, are encouraged to seek culturally appropriate nutrition and weight management advice during the periconception period.

Sign in / Sign up

Export Citation Format

Share Document