scholarly journals Ultrastructure of Placenta of Gravidas with Gestational Diabetes Mellitus

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Qian Meng ◽  
Li Shao ◽  
Xiucui Luo ◽  
Yingping Mu ◽  
Wen Xu ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Morphological Changes ◽  
Basal Membrane ◽  
Normal Pregnancy ◽  
Placental Development ◽  
Terminal Villi ◽  
And Function ◽  
And Control

Objectives. Gestational diabetes mellitus (GDM) leads to an abnormal placental environment which may cause some structural alterations of placenta and affect placental development and function. In this study, the ultrastructural appearances of term placentas from women with GDM and normal pregnancy were meticulously compared.Materials and Methods. The placenta tissues of term birth from 10 women with GDM and 10 women with normal pregnancy were applied with the signed informed consent. The morphology of fetomaternal interface of placenta was examined using light microscopy (LM) and transmission electron microscopy (TEM).Results. On LM, the following morphological changes in villous tissues were found in the GDM placentas when compared with the control placentas: edematous stroma, apparent increase in the number of syncytial knots, and perivillous fibrin deposition. On TEM, the distinct ultrastructural alterations indicating the degeneration of terminal villi were found in the GDM placentas as follows: thickening of the basal membrane (BM) of vasculosyncytial membrane (VSM) and the VSM itself, significantly fewer or even absent syncytiotrophoblastic microvilli, swollen or completely destroyed mitochondria and endoplasmic reticulum, and syncytiotrophoblasts with multiple vacuoles.Conclusion. Ultrastructural differences exist between GDM and control placentas. The differences of placenta ultrastructure are likely responsible for the impairment of placental barrier and function in GDM.

Effects of Maternal Obesity and Gestational Diabetes Mellitus on the Placenta: Current Knowledge and Targets for Therapeutic Interventions

2020 ◽  
Vol 19 (2) ◽  
pp. 176-192
Author(s):  
Samantha Bedell ◽  
Janine Hutson ◽  
Barbra de Vrijer ◽  
Genevieve Eastabrook
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Maternal Obesity ◽  
Environmental Changes ◽  
Current Knowledge ◽  
Therapeutic Interventions ◽  
Placental Development ◽  
Exchange Site ◽  
And Function

: Obesity and gestational diabetes mellitus (GDM) are becoming more common among pregnant women worldwide and are individually associated with a number of placenta-mediated obstetric complications, including preeclampsia, macrosomia, intrauterine growth restriction and stillbirth. The placenta serves several functions throughout pregnancy and is the main exchange site for the transfer of nutrients and gas from mother to fetus. In pregnancies complicated by maternal obesity or GDM, the placenta is exposed to environmental changes, such as increased inflammation and oxidative stress, dyslipidemia, and altered hormone levels. These changes can affect placental development and function and lead to abnormal fetal growth and development as well as metabolic and cardiovascular abnormalities in the offspring. This review aims to summarize current knowledge on the effects of obesity and GDM on placental development and function. Understanding these processes is key in developing therapeutic interventions with the goal of mitigating these effects and preventing future cardiovascular and metabolic pathology in subsequent generations.

scholarly journals miRNA Profiles in Extracellular Vesicles From Serum Early in Pregnancies Complicated by Gestational Diabetes Mellitus

2019 ◽  
Vol 104 (11) ◽  
pp. 5157-5169 ◽  
Author(s):  
Virginie Gillet ◽  
Annie Ouellet ◽  
Yulia Stepanov ◽  
Rodosthenis S Rodosthenous ◽  
Erika Kathe Croft ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Differential Expression ◽  
Extracellular Vesicles ◽  
Placental Development ◽  
Early Effect ◽  
Reverse Transcription Pcr ◽  
Underlying Mechanisms ◽  
And Function

Abstract Context Underlying mechanisms leading to gestational diabetes mellitus (GDM) are still under investigation, and it is unclear whether the placenta plays a role in triggering glucose intolerance or if its functions are modified in response to the hyperglycemia. Circulating miRNAs are involved in placental development and function and are encapsulated in extracellular vesicles (EVs). Objective To compare differential expression of miRNAs in circulating EVs in pregnancies complicated by GDM vs controls. Methods This was a case-control study nested in a prospective pregnancy cohort including 23 women with GDM and 46 matched controls. The presence of serum EVs in early pregnancy was validated by transmission electron microscopy. Placental dimensions were assessed at 11 to 13 weeks of gestation. Differential expression of 17 miRNAs encapsulated in EVs (miR‒122-5p, miR‒132-3p, miR-1323, miR‒182-3p, miR‒210-3p, miR‒29a-3p, miR‒29b-3p, miR‒342-3p, miR‒517-5p, miR‒517a-3p, miR‒518b, miR-520h, miR‒525-5p, miR‒136-5p, miR‒342-3p, miR‒376c-5p, and miR‒494-3p) was assessed using quantitative reverse transcription PCR. Results EVs were present in the early phase of placentation (6 to 15 weeks of gestation) in both cases and controls. No differences were observed for placental dimensions and estimated placental volume between GDM and control groups. Ten miRNAs (miR‒122-5p; miR‒132-3p; miR‒1323; miR‒136-5p; miR‒182-3p; miR‒210-3p; miR‒29a-3p; miR‒29b-3p; miR‒342-3p, and miR-520h) showed significantly higher levels in GDM cases than in controls (P ≤ 0.05). Bioinformatics analysis showed that these miRNAs are involved in trophoblast proliferation/differentiation as well as in insulin secretion/regulation and glucose transport in pregnant women. Conclusion The miRNA content of blood EVs may be a promising avenue for studying the early effect of impaired glucose metabolism on placental development.

Insulin secretion and insulin sensitivity in normal pregnancy and gestational diabetes mellitus

2003 ◽  
Vol 17 (2) ◽  
pp. 137-142 ◽  
Author(s):  
E. Akbay ◽  
M. B. Tıras ◽  
I. Yetkin ◽  
F. Törüner ◽  
R. Ersoy ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Insulin Secretion ◽  
Insulin Sensitivity ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Normal Pregnancy

scholarly journals Effect of Diabetes Education Program on Gestational Diabetes Mellitus Knowledge Among Diabetic Pregnant Women: An Experimental Study

2020 ◽  
Author(s):  
Uchenna Cosmas Ugwu ◽  
Osmond Chukwuemeka Ene
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Pregnant Women ◽  
Education Program ◽  
Diabetes Education ◽  
Control Groups ◽  
Significant Difference ◽  
And Control ◽  
Experimental Group

Abstract Background: Gestational diabetes mellitus (GDM) is a disease condition present during pregnancy and if not properly managed would have severe effect on the maternal and neonatal health. This research determined the effect of diabetes education program (DEP) on gestational diabetes mellitus knowledge (GDMK) among diabetic pregnant women (DPW) and significant differences within groups.Methods: This study was based on a pretest – posttest measures of experimental research design involving experimental (n=110) and control (n=110) groups. A total of 220 DPW were purposively recruited from public hospitals in Nigeria between October and December 2019. The DEP was delivered to DPW in experimental group. The Gestational Diabetes Mellitus Knowledge Questionnaire (GDMKQ) of 0.774 was used for data collection. The statistical analysis was completed using IBM SPSS version 22. Results: The results revealed that no statistically significant difference existed on GDM history (P=0.801>0.05), smoking habit (P=0.0615>0.05), parity status (P=0.503>0.05), and level of education (P=0.720>0.05), while difference was observed on alcohol status (P=0.011<0.05), and age by birth (P=0.009<0.05). Also, while no significant difference existed between the DPW in the treatment and control groups on GDMK pretest measures (P=0.901>0.05), difference existed between the DPW in the intervention and control groups on GDMK posttest scores (P=0.026<0.05). Also, the higher percentage score (78%) of DPW in the experimental group in the posttest GDMK measures which is higher than the score in the pretest measures (55%) of the same group were indications that DEP has significant effect on GDMK among DPW.Conclusion: This demonstrates that reliable interventions are effective in combating pregnancy-related complications. This requires collaborative efforts by concerned bodies to combat notable complications during pregnancy using reliable intervention.Trial Registration: In retrospect, the Pan African Clinical Trial Registry documented the study with registration trial code (Trial No.: PACTR201903003187005)

scholarly journals Gestational diabetes mellitus causes dyslipidemia in late trimester: mini review

2019 ◽  
Vol 9 (1) ◽  
pp. 453
Author(s):  
Poonguzhalai S. ◽  
Kalyanikutty K. P.
Keyword(s):  
Diabetes Mellitus ◽  
Lipid Metabolism ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Gestational Age ◽  
Significant Risk ◽  
Normal Pregnancy ◽  
Adverse Outcomes ◽  
Peripheral Tissues ◽  
Management Protocol

The incidence of gestational diabetes mellitus (GDM) is increasing rapidly worldwide. Many women with gestational diabetes mellitus are likely to have type 2 diabetes. With the extensive management protocol for GDM we are able to obtain a good glycaemic control but still excess morbidity prevails among GDM pregnancy compared to normal pregnancy. This may be due to the dysfunction of lipid metabolism. Changes in carbohydrate and lipid metabolism occur during pregnancy to ensure a continuous supply of nutrients to the growing fetus despite intermittent maternal food intake. Exaggerated reduction in insulin sensitivity in the peripheral tissues combined with peripheral adipose tissue lipolysis in GDM pregnancy than normal pregnancy results in increased maternal lipoprotein concentrations and elevated lipoprotein triglyceride content. An altered lipid profile on the maternal side would modulate the quantity and quality of lipids being transferred to the fetus. Hypertriacylglycerolemia in gestational diabetes mellitus has been related to a significant risk of having neonates that are large for gestational age and it is considered as a major cause of preeclampsia in the late gestational age. So, the recent researchers emphasize on targeting lipid metabolism in pregnant women with GDM to avoid the adverse outcomes of pregnancy.

scholarly journals Association of Gestational Diabetes Mellitus With Left Ventricular Structure and Function: The CARDIA Study

Diabetes Care ◽  
2016 ◽  
Vol 39 (3) ◽  
pp. 400-407 ◽  
Author(s):  
Duke Appiah ◽  
Pamela J. Schreiner ◽  
Erica P. Gunderson ◽  
Suma H. Konety ◽  
David R. Jacobs ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Left Ventricular ◽  
Structure And Function ◽  
Left Ventricular Structure ◽  
Ventricular Structure ◽  
And Function

Serum adenosine deaminase activity in gestational diabetes mellitus and normal pregnancy

2009 ◽  
Vol 281 (4) ◽  
pp. 623-626 ◽  
Author(s):  
Mojgan Mokhtari ◽  
Mohammad Hashemi ◽  
Minoo Yaghmaei ◽  
Fariba Molashahi ◽  
Abdolsamad Shikhzadeh ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Adenosine Deaminase ◽  
Normal Pregnancy ◽  
Adenosine Deaminase Activity
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