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  • Title: Gestational diabetes mellitus induces placental vasculopathies.
    Author: Aldahmash WM, Alwasel SH, Aljerian K.
    Journal: Environ Sci Pollut Res Int; 2022 Mar; 29(13):19860-19868. PubMed ID: 34725760.
    Abstract:
    Gestational diabetes mellitus (GDM) poses significant long- and short-term risks to both the developing fetus and the mother. GDM can lead to maternal complications during pregnancy and increase the mother's risk of developing type 2 diabetes mellitus and cardiovascular disease later. The present study aimed to evaluate the maternal and fetal vasculopathies in the placenta of Saudi women with GDM. This prospective study examined 84 placentas from full-term pregnant women with no complications other than GDM; 40 placentas were collected from healthy women (controls), and 44 were collected from women diagnosed with GDM. The sampling took place in King Saud University Medical City, Riyadh, between January and August 2019. All placentas were histologically examined according to the Amsterdam Placental Workshop Group (2014, 2015). The results showed that the most common placental changes on the maternal side of the placenta in the GDM group were significant syncytial knots (77%), calcification (70%), villous agglutination (57%), decidual vasculopathy (43%), and retroplacental hemorrhage (34%). Placental infarction was the least common placental change in both groups. On the fetal side, vasculopathies included significant villous fibrinoid necrosis (70.5%), chorangiosis (50%), fibromuscular sclerosis (50%), and villous edema (38.6%). Significant villous fibrinoid necrosis, villous edema, and significant fibromuscular sclerosis were more prevalent in the GDM group. The present study concluded that gestational diabetes mellitus induces histopathological phenotypes in the full-term placenta. Increased decidual vasculopathy, syncytial knots, retroplacental hemorrhage, classification, villous agglutination, chorangiosis, villous edema, villous fibroid necrosis, and fibromuscular sclerosis may indicate GDM in the mother. Such findings in the placenta of a woman who has not been diagnosed with GDM increase the need for GDM examination in future pregnancies.
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