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Vitamin D and VDR gene polymorphism (FokI) in epithelial ovarian cancer in Indian population
Sudhesna Mohapatra1, Alpana Saxena, Gauri Gandhi
1Department of Biochemistry, Maulana Azad Medical College, Bahadur Shah Zafar Marg, New Delhi, Delhi 110002, India. sudhesna.moh@gmail.com.
Introduction:
Vitamin D deficiency and vitamin D receptor (VDR) gene polymorphism, FokI, is reported to increase the risk of many cancers. Role of vitamin D and its receptor polymorphisms in ovarian cancer has not been clearly defined.
Objective:
To study the levels of serum vitamin D and occurrence of vitamin D receptor gene polymorphism (FokI) in cases of ovarian cancer.
Material And Methods:
FokI genotyping was done by PCR-RFLP technique and vitamin D levels were estimated by chemiluminescence immunoassay.
Results:
Serum vitamin D levels were significantly (p < 0.03) lower in ovarian cancer cases as compared to controls. The homozygous (TT) and heterozygous (CT) genotype predispose to the development of ovarian cancer in Indian population (OR: 2.37, 95% CI: 1.04-5.44) as compared to the homozygous (CC) genotype. Vitamin D deficiency and VDR gene polymorphism (FokI) act non-synergistically (p value < 0.4).
Conclusion:
Low blood levels of vitamin D and VDR receptor polymorphism (FokI) might be a risk factor for the development of ovarian cancer. Other novel ligands of vitamin D receptor might be responsible for the non-synergistic effect.
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