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Vitamin D Deficiency With Selected Vitamin D Receptor Gene Polymorphism in Gestational Hypertension

Vitamin D Deficiency Clinical Trial

Official title:
Association of Vitamin D Deficiency With Selected Vitamin D Receptor (VDR) Gene Polymorphism in Gestational Hypertension Among Malaysian Women: A Prospective Genetic Biomarker for Early Intervention Strategy

Clinical Trial Summary

This study aim to look into the prevalence of Vitamin D deficiency among Malaysian pregnant women and its associated risk factors. Subsequently, vitamin D deficient women with and without gestational hypertension will be investigated for their genetic variation to look for the association of VDR genetic variation and hypertensive disorders in pregnancy.

Clinical Trial Description

Hypertensive disorders of pregnancy account for approximately 14% of maternal mortality globally and is the fourth leading cause of maternal mortality in Malaysia. Despite this, the mechanisms and pathogenesis are still unknown. Vitamin D deficiency (hypovitaminosis vitamin D) has been shown to be one of the causes of gestational hypertension(GH). Several populations have observed the association of single nucleotide polymorphisms (SNPs) of vitamin D receptor (VDR) to vitamin D deficiency among pregnancy complications, including GH. Alarming cases of hypovitaminosis D in sunny areas including Malaysia, highly imply the need to understand the genetic factor. Hence, genotyping VDR variants among pregnant women is essential for early vitamin D supplementation strategy. To investigators knowledge, there has been no published study conducted among Malaysian population on the association of VDR genetic variation and GH. Therefore, this study aim to investigate the prevalence of vitamin D deficiency and its association of VDR SNPs to the development of GH among Malaysian pregnant mothers, with the main focus on Malays, representing the largest ethnic in Malaysia. The prevalence will be determined through a cross-sectional study involving 363 pregnant women recruited in Hospital Pengajar UPM (HPUPM) and Hospital Serdang, Selangor. Relevant socio-demographic, clinical and anthropometric data will be collected using structured interviewer-administered questionnaire. Blood specimens for the analysis of vitamin D will be done. The association will be determined in a case-control study involving 180 pregnant women who fulfilled the criteria, recruited from phase 1 study. Their blood will be further analysed for the variants of the VDR gene [(BsmI(rs1544410), FokI(rs2228570), TaqI(rs731236)] to look for the association. This study expected to provide more evidence for early personalised intervention of vitamin D supplementation due to anticipated individual genetic variability. This antenatal care programme will reduce the government expenditures, reduce maternal and fetal morbidity and mortality while strengthening Malaysia's healthcare system. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05659173
Study type Observational
Source Universiti Putra Malaysia
Contact Nurul I Basri
Phone 0397699339
Email nurul.iftida@upm.edu.my
Status Recruiting
Phase
Start date November 1, 2022
Completion date September 30, 2024
View Details
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