Korean J Obstet Gynecol.  2004 Dec;47(12):2319-2324.

Association of the polymorphisms in CYP1A1 and CYP1A2 genes with preterm premature rupture of membranes

• Park CH
• Shin JC
• Yang DE
• Park IY
• Ko HS
• Kim YH
• Ahn HY
• Kim SJ
• Kim SP

Abstract

OBJECTIVE
Preterm delivery (PTD) is the leading cause of perinatal mortality and morbidity. However, its etiology and pathogenesis remain unknown in most cases. Recently, some research put forth the hypothesis that PTD results, at least in part, from a genetic predisposition. This study was undertaken to elucidate whether polymorphisms of cytochrome 450 (CYP) 1A1 and 1A2 are associated with PTD caused by preterm premature rupture of membrane (PPROM) in Korean pregnant women.
METHODS
From August 2002 to October 2003, in the affiliated hospitals in the Catholic University of Korea, we have collected the samples from the 264 women who delivered after 37 weeks and from 26 women who delivered following spontaneously ruptured membranes before 37 weeks.
RESULTS
There was no significant difference in the genotype frequency as well as in the allelic frequency of CYP1A1*m2 in PPROM group compared with the control group (54% vs. 66%, P=0.224; 0.29 vs. 0.40, P=0.111, respectively). The genotype frequency of CYP1A2*C was significantly higher in PPROM group than in the control group (69% vs. 49%, P=0.047). However, the allelic frequency of CYP1A2*C was not significantly higher in PPROM group than in the control group (0.4 vs. 0.275, P=0.45).
CONCLUSION
These results suggest that CYP1A2*C may be, at least in part, associated with PPROM.

Keyword

CYP1A1; CYP1A2; Polymorphism; Preterm delivery; Preterm premature rupture of membrane

MeSH Terms

Cytochrome P-450 CYP1A1*
Cytochrome P-450 CYP1A2*
Cytochromes
Female
Genetic Predisposition to Disease
Genotype
Humans
Korea
Membranes*
Perinatal Mortality
Pregnant Women
Rupture*
Cytochrome P-450 CYP1A1
Cytochrome P-450 CYP1A2
Cytochromes