Exon 1 polymorphisms in the equine CSN3 gene: SNPs distribution analysis in Murgese horse breed.

The aim of this study was to assess genetic polymorphism at two loci in the exon 1 of the CSN3 gene in Murgese horse breed by PCR-RFLP analysis. The overall frequencies of alleles A and G at c.-66A > G locus were 0.

Quantitative study of placental villi in trisomy by analytical morphometry.

Objective: To assess the relationship between morphologic features of placental villi and the occurrence of trisomy.

Study Design: We selected 9 placentas with genetically diagnosed trisomy 21 and 6 normal placentas of matched gestational age. The 150 selected villi underwent a morphometric study using the Shape Analytical Morphometry system, availing itself of an ordinary section to study dimensions and of a specific section to study the shape.