The interleukin-6 -174G/C promoter polymorphism is not associated with endometriosis in South Indian women.
OBJECTIVE
To investigate the association of the -174 G/C promoter polymorphism of the interleukin-6 (IL-6) gene with endometriosis in South Indian women.


METHODS
The genotype frequencies of the common IL-6 -174 G/C polymorphism were compared in infertility patients with (n = 232) and without (n = 210) endometriosis using polymerase chain reaction (PCR) and sequencing analysis.


RESULTS
The genotype frequencies among the cases and controls were G/G 62.9% and 71.9%, G/C 34.1% and 25.2%, and C/C 3.0% and 2.9%. The G and C allele frequencies were 80% and 84.6%, and 20% and 15.4%, respectively. There were no statistically significant differences in the genotype distributions or allele frequencies between the cases and controls (P = .12).


CONCLUSIONS
The present study demonstrates no significant association between the IL-6 -174 G/C promoter polymorphism and endometriosis in South Indian women.
Bhanoori
Manjula
M
Centre for Cellular and Molecular Biology, Hyderabad, India.
Babu
Kusuma Arvind
KA
Deenadayal
Mamata
M
Kennedy
Stephen
S
Shivaji
Sisinthy
S
D000328:Adult; D016022:Case-Control Studies; D004715:Endometriosis / Q000235:genetics* / Q000503:physiopathology; D005260:Female; D005838:Genotype; D006801:Humans; D007194:India; D015850:Interleukin-6 / Q000235:genetics* / Q000502:physiology; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic; D012307:Risk Factors
D015850:Interleukin-6