Urban and rural comparison of vitamin D status in Pakistani pregnant women and neonates

References

• Abbas S, Linseisen J, Slanger T, Kropp S, Mutschelknauss EJ, Flesch-Janys D, et al. 2008. The Gc2 allele of the vitamin D binding protein is associated with a decreased postmenopausal breast cancer risk, independent of the vitamin D status. Cancer Epidemiology. Biomarkers and Prevention 17:1339–1343.
   PubMed Web of Science ®Google Scholar
• Cadario F, Savastio S, Pozzi E, Capelli A, Dondi E, Gatto M, et al. 2013. Vitamin D status in cord blood and newborns: ethnic differences. Italian Journal of Pediatrics 39: 35.
   PubMed Web of Science ®Google Scholar
• Cockburn F, Belton NR, Purvis RJ, Giles MM, Brown JK, Turner TL, et al. 1980. Maternal vitamin D intake and mineral metabolism in mothers and their newborn infants. British Medical Journal 281: 11–14.
   PubMed Web of Science ®Google Scholar
• Dror DK. 2011. Vitamin D status during pregnancy: maternal, fetal, and postnatal outcomes. Current Opinion in Obstetrics and Gynecology 23: 422–426.
   PubMed Web of Science ®Google Scholar
• Dror DK, Allen LH. 2010. Vitamin D inadequacy in pregnancy: biology, outcomes, and interventions. Nutrition Reviews 68: 465–477.
   PubMed Web of Science ®Google Scholar
• Engelman CD, Fingerlin TE, Langefeld CD, Hicks PJ, Rich SS, Wagenknecht LE, et al. 2008. Genetic and environmental determinants of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D levels in Hispanic and African Americans. Journal of Clinical Endocrinology and Metabolism 93: 3381–3388.
   PubMed Web of Science ®Google Scholar
• Enko D, Fridrich L, Rezanka E, Stolba R, Ernst J, Wendler I, et al. 2014. 25-hydroxy-Vitamin D status: limitations in comparison and clinical interpretation of serum-levels across different assay methods. Clínica y Laboratorio 60: 1541–1550.
   PubMed Web of Science ®Google Scholar
• Fraser WD, Milan AM. 2013. Vitamin D assays: past and present debates, difficulties, and developments. Calcified Tissue International 92: 118–127.
   PubMed Web of Science ®Google Scholar
• Fu L, Yun F, Oczak M, Wong BY, Vieth R, Cole DE. 2009. Common genetic variants of the vitamin D binding protein (DBP) predict differences in response of serum 25-hydroxyvitamin D [25(OH)D] to vitamin D supplementation. Clinical Biochemistry 42: 1174–1177.
   PubMed Web of Science ®Google Scholar
• Glade MJ. 2012. A 21 st century evaluation of the safety of oral vitamin D. Nutrition 28: 344–356.
   PubMed Web of Science ®Google Scholar
• Gozdzik A, Zhu J, Wong BY, Fu L, Cole DE, Parra EJ. 2011. Association of vitamin D binding protein (VDBP) polymorphisms and serum 25(OH)D concentrations in a sample of young Canadian adults of different ancestry. Journal of Steroid Biochemistry and Molecular Biology 127: 405–412.
   PubMed Web of Science ®Google Scholar
• Granado Lorencio F, Blanco-Navarro I, Perez-Sacrsitan B. 2013. Critical evaluation of assays for vitamin D status. Current Opinion in Clinical Nutrition and Metabolic Care 16: 734–740.
   PubMed Web of Science ®Google Scholar
• Holick MF. 2009. Vitamin D status: measurement, interpretation, and clinical application. Annals of Epidemiology 19: 73–78.
   PubMed Web of Science ®Google Scholar
• Hossain N, Khanani R, Hussain-Kanani F, Shah T, Arif S, Pal L. 2011. High prevalence of vitamin D deficiency in Pakistani mothers and their newborns. International Journal of Gynaecology and Obstetrics 112: 229–233.
   PubMed Web of Science ®Google Scholar
• Ito I, Nagai S, Hoshino Y, Muro S, Hirai T, Tsukino M, et al. 2004. Risk and severity of COPD is associated with the group-specific component of serum globulin 1F allele. Chest 125: 63–70.
   PubMed Web of Science ®Google Scholar
• Kamboh MI, Ferrell RE. 1986. Ethnic variation in vitamin D-binding protein (GC): a review of isoelectric focusing studies in human populations. Human Genetics 72: 281–293.
   PubMed Web of Science ®Google Scholar
• Karim SA, Nusrat U, Aziz S. 2011. Vitamin D deficiency in pregnant women and their newborns as seen at a tertiary-care center in Karachi, Pakistan. International Journal of Gynaecology and Obstetrics 112: 59–62.
   PubMed Web of Science ®Google Scholar
• Lauridsen AL, Vestergaard P, Hermann AP, Brot C, Heickendorff L, Mosekilde L, et al. 2005. Plasma concentrations of 25-hydroxy-vitamin D and 1,25-dihydroxy-vitamin D are related to the phenotype of Gc (vitamin D-binding protein): a cross-sectional study on 595 early postmenopausal women. Calcified Tissue International 77: 15–22.
   PubMed Web of Science ®Google Scholar
• Leandro AC, Rocha MA, Cardoso CS, Bonecini-Almeida MG. 2009. Genetic polymorphisms in vitamin D receptor, vitamin D-binding protein, Toll-like receptor 2, nitric oxide synthase 2, and interferon-gamma genes and its association with susceptibility to tuberculosis. Brazilian Journal of Medical and Biological Research 42: 312–322.
   PubMed Web of Science ®Google Scholar
• Lewontin RC, Kojima K-i. 1960. The evolutionary dynamics of complex polymorphisms. Evolution: 458–472.
   Google Scholar
• Masood SH, Iqbal MP. 2008. Prevalence of vitamin D deficiency in South Asia. Pakistan Journal of Medical Sciences 24: 891–897.
   Web of Science ®Google Scholar
• McGrath JJ, Saha S, Burne TH, Eyles DW. 2010. A systematic review of the association between common single nucleotide polymorphisms and 25-hydroxyvitamin D concentrations. Journal of Steroid Biochemistry and Molecular Biology 121: 471–477.
   PubMed Web of Science ®Google Scholar
• Nagasawa H, Uto Y, Sasaki H, Okamura N, Murakami A, Kubo S, et al. 2005. Gc protein (vitamin D-binding protein): Gc genotyping and GcMAF precursor activity. Anticancer Research 25: 3689–3695.
   PubMed Web of Science ®Google Scholar
• Sachan A, Gupta R, Das V, Agarwal A, Awasthi PK, Bhatia V. 2005. High prevalence of vitamin D deficiency among pregnant women and their newborns in northern India. American Journal of Clinical Nutrition 81: 1060–1064.
   PubMed Web of Science ®Google Scholar
• Sinotte M, Diorio C, Berube S, Pollak M, Brisson J. 2009. Genetic polymorphisms of the vitamin D binding protein and plasma concentrations of 25-hydroxyvitamin D in premenopausal women. American Journal of Clinical Nutrition 89: 634–640.
   PubMed Web of Science ®Google Scholar
• Speeckaert M, Huang G, Delanghe JR, Taes YE. 2006. Biological and clinical aspects of the vitamin D binding protein (Gc-globulin) and its polymorphism. Clinica Chimica Acta 372: 33–42.
   PubMed Web of Science ®Google Scholar
• Wang TJ, Zhang F, Richards JB, Kestenbaum B, van Meurs JB, Berry D, et al. 2010. Common genetic determinants of vitamin D insufficiency: a genome-wide association study. Lancet 376: 180–188.
   PubMed Web of Science ®Google Scholar
• Wei SQ, Qi HP, Luo ZC, Fraser WD. 2013. Maternal vitamin D status and adverse pregnancy outcomes: a systematic review and meta-analysis. Journal of Maternal-Fetal & Neonatal Medicine 26: 889–899.
   PubMed Web of Science ®Google Scholar