AI Article Synopsis
- - Vitamin D deficiency is common in pregnant women and can lead to metabolic complications; this study examined the effects of two different doses of vitamin D supplementation (1000 IU/d and 2000 IU/d) on both maternal and cord blood vitamin D levels and various health markers.
- - A total of 84 pregnant women participated in the study, with biochemical assessments done before and at 34 weeks of pregnancy, evaluating key markers such as vitamin D levels, sugar, cholesterol, and oxidative stress indicators.
- - Results showed that both dosages significantly improved vitamin D status during pregnancy, with the 2000 IU/d group exhibiting higher HDL-C levels and lower iPTH concentrations compared to the 1000 IU/d group, indicating
Article Abstract
Background: Vitamin D deficiency during pregnancy is common and is likely to be associated with metabolic complications in the mother. The aim of this study was to assess the efficacy of two doses of vitamin D supplementation during pregnancy on maternal and cord blood vitamin D status and metabolic and oxidative stress biomarkers.
Methods: The eligible pregnant women (n = 84) invited to participate in the study and randomly allocated to one of the two supplementation groups (1000 IU/d vitamin D and 2000 IU/d). Biochemical assessments of mothers including serum concentrations of 25(OH)D, calcium, phosphate, iPTH, fasting serum sugar (FBS), insulin, triglyceride, total cholesterol, LDL-C, HDL-C, malondialdehyde (MDA) and total antioxidant capacity (TAC) were done at the beginning and 34 weeks of gestation. Cord blood serum concentrations of 25(OH)D, iPTH, MDA and TAC were assessed at delivery as well. To determine the effects of vitamin D supplementation on metabolic markers 1-factor repeated-measures analysis of variance (ANOVA) was used. Between groups comparisons was done by using Independent-samples Student's t-test or Mann-Whitney test. P < 0.05 was considered as significant.
Results: Supplementation with 1000 IU/d and 2000 IU/d vitamin D resulted in significant changes in vitamin D status over pregnancy (24.01 ± 21.7, P < 0.001 in 1000 IU/d group and 46.7 ± 30.6 nmol/L, P < 0.001 in 2000 IU/d group). Daily intake of 2000 compared with 1000 IU/d tended to increase the serum concentration of HDL-C (10 ± 8.37, P < 0.001 in 1000 IU/d group and 9.52 ± 11.39 mg/dL, P < 0.001 in 2000 IU/d group). A significant decrement in serum concentration of iPTH observed in both groups (- 4.18 ± 7.5, P = 0.002 in 1000 IU/d group and - 8.36 ± 14.17, P = 0.002 in 2000 IU/d group).
Conclusions: Supplementation with 2000 IU/d vitamin D as compared with 1000 IU/d, is more effective in promoting vitamin D status and HDL-C serum concentration and in decreasing iPTH over pregnancy.
Trial Registration: This trial is registered at clinicaltrials.gov ( NCT03308487 ). Registered 12 October 2017 'retrospectively registered'.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556979 | PMC |
| http://dx.doi.org/10.1186/s12884-020-03311-1 | DOI Listing |
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