Title: Vitamin D Deficiency in Pregnancy: Does Magnesium Play any Role?

Authors: Sanchayan Sinha, Souvik Konar, Sayantan Dasgupta, Soma Gupta

 DOI: https://dx.doi.org/10.18535/jmscr/v7i7.70

Abstract

Introduction: Vitamin D is very important for fetal skeletal development in pregnancy. Deficiency of Vitamin D is quiet common among the pregnant women in our country. In the pathway of Vitamin D metabolism, magnesium is known to play an important role. It is cofactor of many enzymes involved in vitamin D metabolism & vitamin D binding protein. Some studies have suggested that both vitamin D and magnesium level decreases during pregnancy with adverse feto-maternal outcome.

Aims & Objectives: To find out levels of serum magnesium & vitamin D in both pregnant & non pregnant women & compare their levels for any significant difference &to find out whether any correlation exists between magnesium level and vitamin D level in pregnancy.

Materials & Methods: The study included the estimation of serum magnesium & vitamin D of 100 pregnant women (cases) & 100 age matched non pregnant women (controls). The values were tabulated & analysed by standard statistical method.

Result: Serum magnesium level was found to be lower in pregnancy (Mean ± SD is 1.83 mg/dl ± 0.61) than in non pregnant women (Mean ± SD is 1.94 mg/dl ± 0.64). Butthe decrease was not found to be significant (p < 0.05). However serum Vitamin D level was also found to be decreased in pregnancy (Mean ± SD is 14.74 ng/ml ± 5.83) than in non pregnant (Mean ± SD is 21.19 ng/ml ± 7.82) and the decrease was found to be significant (p < 0.05). Correlation coefficient between magnesium & Vitamin D was found to be 0.355.

Discussion: The decrease in Vitamin D level was found to be positively correlated with decrease in magnesium level in pregnancy. However the correlation coefficient is too small to establish any concrete correlation between them. Further in depth study is required to find out the cause of Vitamin D deficiency in pregnant women.

Keywords: Vitamin D, Magnesium, Pregnancy, Antepartum haemorrhage, Low birth weight, Birth asphyxia.

References

  1. Hollis BW. Vitamin D requirement during pregnancy and lactation. J Bone Miner Res 2007;22(2):39–44.
  2. Yu CK, Sykes L, Sethi M, Teoh TG, Robinson S. Vitamin D deficiency and supplementation during pregnancy. ClinEndocrinol (Oxf) 2009;70:685–90.
  3. Mahon P, Harvey N, Crozier S, Inskip H, Robinson S, Arden N, et al. Low maternal vitamin D status and fetal bone development: cohort study. J Bone Miner Res 2010;25:14–9.
  4. Kovacs CS, Kronenberg HM. Maternal-fetal calcium and bone metabolismduring pregnancy, puerperium and lactation. Endocr Rev 1997; 18:832–72.
  5. Hyppönen E, Power C. Hypovitaminosis D in British adults at age 45 y: nationwide cohort study of dietary and lifestyle predictors. American Journal of Clinical Nutrition2007;85:860–8.
  6. Kapil, U., P. Pathak. P. Singh and C. Singh. Mothers of urban slums communities in Delhi: a pilot: study. Indian Pediatrics. 2002;39: 365-369.
  7. Shaikh, M.K., B.R. Devrajani, A.A. Soomro, S.Z.A. Shah, T. Devrajani and T. Das. World Applied Sciences Journal. 2011; 12(10): 1803-06.
  8. Takaya, J., F. Yamato and K. Kaneko. Possible relationship between low birth weight and magnesium status: from the standpoint of fetal origin hypothesis. Magnesium resistance. 2226; 19: 63-9.
  9. De Swiet, M. The respiratory system. Chamberlain G and Broughton Pipkin F (eds) Clinical Physiology in Obstetrics. Oxford: Blackwell Science Ltd. 1998;3:111-128.
  10. Takaya, J., F. Yamato and K. Kaneko. Possible relationship between low birth weight and magnesium status: from the standpoint of fetal origin hypothesis. Magnesium resistant2006;19:63-9.
  11. Zittermann A, Iodice S, Pilz S, Grant WB, Bagnardi V, Gandini S. Vitamin D deficiency and mortality risk in the general population: a meta-analysis of prospective cohort studies. Am J ClinNutr 2012; 95:91-100.
  12. Rude R K, Wagner CL, Greer FR. Prevention of rickets and vitamin D deficiency in infants, children, and adolescents. Pediatrics. 2015; 122:1142–52.
  13. Aghajafari F, Nagulesapillai T, Ronksley PE, Tough SC, O’Beirne M, Rabi DM. Association between maternal serum 25-hydroxyvitamin D level and pregnancy and neonatal outcomes: systematic review and meta-analysis of observational studies. BMJ 2013; 346:1169.

Corresponding Author

Soma Gupta

Address: 40A, Simla Street. Kolkata 700006, India