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BMC Med Genet. 2012 Dec 13;13:121. doi: 10.1186/1471-2350-13-121.

Phosphodiesterase 8B gene polymorphism in women with recurrent miscarriage: a retrospective case control study.

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1
Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden. michaela.granfors@kbh.uu.se

Abstract

BACKGROUND:

Recurrent miscarriage affects approximately 1% of all couples. There is a known relation between hypothyroidism and recurrent miscarriage. Phosphodiesterase 8B (PDE8B) is a regulator of cyclic adenosine monophosphate (cAMP) with important influence on human thyroid metabolism. Single nucleotide polymorphism (SNP) rs 4704397 in the PDE8B gene has been shown to be associated with variations in serum Thyroid Stimulating Hormone (TSH) and thyroxine (T4) levels. The aim of this study was to investigate whether there is an association between the SNP rs 4704397 in the PDE8B gene and recurrent miscarriage.

METHODS:

The study was designed as a retrospective case control study. 188 cases with recurrent miscarriage were included and compared with 391 controls who had delivered at least once and with no history of miscarriage or assisted reproduction.

RESULTS:

No difference between cases and controls concerning age was found. Bivariate associations between homozygous A/A (OR 1.57, 95% CI 0.98-2.52) as well as G/G carriers (OR 1.52, 95% CI 1.02-2.25) of SNP rs 4704397 in PDE8B and recurrent miscarriage were verified (test for trend across all 3 genotypes, p=0.059). After adjustment for known confounders such as age, BMI and smoking the association between homozygous A/A (AOR 1.63, 95% CI 1.01-2.64, p=0.045) and G/G (AOR 1.52, 95% CI 1.02-2.27, p=0.039) carriers of SNP rs 4704397 in PDE8B and recurrent miscarriage remained.

CONCLUSIONS:

Our findings suggest that there is an association between homozygous A/A as well as homozygous G/G carriers of SNP rs 4704397 in PDE8B and recurrent miscarriage.

PMID:
23237535
PMCID:
PMC3556309
DOI:
10.1186/1471-2350-13-121
[Indexed for MEDLINE]
Free PMC Article
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