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Int J Dev Biol. 2009;53(4):623-9. doi: 10.1387/ijdb.082613pl.

Identification of Quantitative Trait Loci responsible for embryonic lethality in mice assessed by ultrasonography.

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1
INSERM, U567, Institut Cochin, Paris 75014, France.

Abstract

Recurrent Spontaneous Abortion (RSA) is a frequent pathology affecting 1 to 5% of couples. In approximately 50 % of cases, the aetiology is unknown suggesting a subtle interaction between genetic and environmental factors. Previous attempts to describe genetic factors using the candidate gene approach have been relatively unsuccessful due to the physiological, cellular and genetic complexity of mammalian reproduction. Indeed, fertility can be considered as a quantitative feature resulting from the interaction of genetic, epigenetic and environmental factors. Herein, we identified Quantitative Trait Loci (QTL) associated with diverse embryonic lethality phenotypes and the subsequent embryonic resorption in 39 inter-specific recombinant congenic mice strains, using in vivo ultrasound bio-microscopy. The short chromosomal intervals related to the phenotypes will facilitate the study of a restricted number of candidate genes which are potentially dysregulated in patients affected by RSA.

PMID:
19488966
DOI:
10.1387/ijdb.082613pl
[Indexed for MEDLINE]
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