Abstract
Background: Pregnant women develop certain metabolic alterations and substantial nutrient insufficiency, which may impact fetus development. Reports on the association of serum 25-hydroxy vitamin D (25(OH)D, VD) status with gestational diabetes mellitus (GDM) is still controversial. This study aimed to investigate the association of serum VD status with GDM and other laboratory parameters in early pregnant women.Methods: A total of 1516 pregnant women were enrolled in this study. Maternal serum VD and other laboratory parameters—including hematology, coagulation, chemistry, and bone density—were measured utilizing various analytical methods in clinical laboratory at gestational weeks 11 to 14. Serum VD level was subsequently correlated with blood glucose and other laboratory parameters.Results: The average VD concentration was 59.12 ± 12.5 nmol/L. None of the study subjects had VD <25 nmol/L; 434 (28.6%) women had VD <50 nmol/L, and 200 women (13.2%) had VD ≥75 nmol/L. There were 264 (17.4%) women diagnosed with GDM. There was not, however, a correlation between serum VD and GDM in early pregnancy. Interestingly, women with more parity and high serum alkaline phosphatase levels had higher serum VD levels. There was a positive correlation between serum VD and pre-albumin, activated partial thromboplastin time, and a negative correlation between serum VD, creatinine, and thrombin time.Conclusions: There was no correlation between maternal serum VD and GDM in early pregnant women. There were, however, associations between serum VD and parity, serum alkaline phosphatase, creatinine, pre-albumin, and coagulation factors, which need further study to explain their pathophysiology and clinical significance.
A Case of Vitamin D Deficiency without Elevation of Serum Alkaline Phosphatase in a Carrier of Hypophosphatasia
