Vitamin D deficiency and dyslipidemia in early pregnancy
Al-Daghri, Abdulrahman Al-Ajlan 1, Soundararajan Krishnaswamy 2, Majed S Alokail 3, Naji J Aljohani 4, Amal Al-Serehi 5, Eman Sheshah 6, Naemah M Alshingetti 7, Mona Fouda 8, Iqbal Z Turkistani 9, Nasser M . 2015
Abstract
Background: Vitamin D deficiency is a common nutritional issue and dietary supplementation in the general population, including pregnant women, is generally advised. Appropriately high levels of vitamin D are expected to play a role in containing the glycemic and atherogenic profiles observed in pregnancy. However, the relation between vitamin D status and the lipid metabolic profile in Saudi women, who are known to suffer from chronic vitamin D deficiency and high incidence of obesity and type II DM, during the course of pregnancy is not known.
Methods: In this study, we analyzed the relation between serum vitamin D level and various serum metabolic markers among Saudi women (n = 515) in their first trimester of pregnancy (11.2 ± 3.4 weeks). Coefficients of Pearson correlation and Spearman rank correlation were calculated for Gaussian and non-Gaussian variables, respectively. Serum vitamin D status was defined as (in nmol/L): deficient (<25), insufficient (25-50); sufficient (50-75) and desirable (>75).
Results: Results indicated that vitamin D status was sufficient in only 3.5% of the study participants and insufficient and deficient in 26.2% and 68.0% of participants, respectively. Serum vitamin D values in the overall study population correlated positively with serum levels of total cholesterol (R = 0.172; p < 0.01), triglycerides (R = 0.184; p < 0.01) and corrected calcium (R = 0.141; p < 0.05). In the subgroup of vitamin D deficient subjects (n = 350), log serum vitamin D values correlated with serum triglycerides (R = 0.23; p = 0.002) and cholesterol (R = 0.26; p = 0.001).
Conclusions: The positive correlations between serum vitamin D and the atherogenic factors such as total cholesterol and triglycerides indicate a pro-atherogenic metabolic status in vitamin D deficient expectant mothers. This may represent an adaptation to the high metabolic demands of pregnancy.
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