Influence of hypovitaminosis D during pregnancy on glycemic and lipid profile, inflammatory indicators and anthropometry of pregnant and newborn.

BACKGROUND & AIMS: Hypovitaminosis D currently represents a public health problem and is related to the emergence of chronic diseases. Furthermore, this vitamin deficiency has been associated with pregnancy complications, and it can also influence newborn's growth and development. The purpose of this review is to understand the effects of vitamin D nutritional status on women during pregnancy, as well as its impact on newborn's health. METHODS: Review of observational studies, published between 2020 and 2021. The research was carried out in the following databases: Pubmed and SciELO. The search terms used to select the articles were: vitamin D, 25(OH)D, serum levels, pregnancy, lactation, gene expression, maternal results, complications, pre-eclampsia, obesity, gestational diabetes, and children. As inclusion criteria, were considered observational studies that addressed the topic and answered the review aims. RESULTS: 52 articles were identified and at the end of the selection process, 19 articles were considered, in which they met all the established eligibility criteria. According to the findings in this review, hypovitaminosis D is related to gestational diabetes, pre-eclampsia and gestational weight gain, changes in laboratory parameters as well as outcomes in newborns. CONCLUSIONS: Hypovitaminosis D can adversely influence pregnancy and newborn's health, evidencing the need to assess the nutritional status of vitamin D, as well as the existence, or not, of a clinic during pregnancy. It is important that new scientific evidence is published to support this hypothesis.

Gestational weight gain and adverse maternal and perinatal outcomes among women with gestational diabetes mellitus according to International Association of Diabetes and Pregnancy Study Group (IADPSG) criteria: A cross sectional study.

AIMS: To evaluate the association of gestational weight gain and adverse maternal and perinatal outcomes among Brazilian women with gestational diabetes mellitus (GDM). METHODS: Cross-sectional study conducted in women with GDM, and their newborns, who attended a public maternity hospital. The Institute of Medicine criteria were adopted to assess adequacy of gestational weight gain (GWG). Cesarean delivery, maternal hypertensive disorders of pregnancy (HDP), premature birth, macrosomia, and birth weight adequacy for gestational age were analyzed as outcomes. Simple and multiple logistic regression models were tested to assess the effect of adequacy of GWG on maternal and newborn outcomes. RESULTS: Among the 545 women studied, 64.2% (n = 344) had inadequate weight gain: 27.2% (n = 146) insufficient and 37% (n = 198) excessive. Women with insufficient GWG were more likely to have a preterm birth (OR 2.57; 95% CI: 1.06-6.19), while those with excessive GWG had a greater chance of HDP (OR 2.62; 95% CI: 1.54-4.45) and large for gestational age newborn (OR 1.88; 95% CI: 1.08-3.29), compared with those with adequate weight gain. CONCLUSIONS: Inadequate gestational weight gain was frequent in women with GDM, especially in pregnant women with overweight and obesity, and is associated with unfavorable outcomes.