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  • Title: Polymorphisms in the TFAM and PGC1-α genes and their association with polycystic ovary syndrome among South Indian women.
    Author: Reddy TV, Govatati S, Deenadayal M, Shivaji S, Bhanoori M.
    Journal: Gene; 2018 Jan 30; 641():129-136. PubMed ID: 29030253.
    Abstract:
    We investigated the link between polymorphisms in genes involved in mitochondrial biogenesis, mitochondrial transcription factor A (TFAM) and Peroxisome proliferator activated receptor gamma coactivator-1 alpha (PGC-1α) and further studied the role of these genes on the pathophysiology of polycystic ovary syndrome (PCOS). This case-control study was carried out in 118 PCOS cases and 110 controls. In the present study we genotyped three polymorphisms of PGC1-α gene (rs8192678-Gly482Ser, rs13131226 and rs2970856) and polymorphism of TFAM gene (rs1937-+35G/C) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. In addition, to better understand genetic contributions to the pathophysiology of PCOS, mtDNA copy number (MCN) was quantified using a qRT-PCR assay in the subjects. The results revealed that the distribution of genotypes and allele frequency of the PGC-1α Gly482Ser polymorphism in PCOS patients was statistically significant from those of the control group respectively (OR-2.488; 95% CI-1.0673 to 5.7998; P=0.047), (OR-1.6091; 95% CI-1.0955 to 2.3634; P=0.015) indicating that the presence of 'A' allele might confer risk to PCOS. Patients with the 'AA' genotype showed significantly lower levels of MCN compared with patients with other genotypes. In addition, patients carrying CT genotype of PGC1-α rs2970856 demonstrated significantly higher levels of LH (P=0.030) than TT and CC genotypes. In conclusion, our study indicates that carriers of the PGC-1α rs8192678 'Ser' allele have increased risk of developing PCOS.
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