Histological analysis of arteriovenous anastomosis-like vessels established in the corpus luteum of cows during luteolysis.

ABSTRACT:

Background

The mechanisms regulating the function and regression of the corpus luteum (CL) have not yet been elucidated in detail. The regressed CL of cows was previously reported to be filled with unusual vessels like arteriovenous anastomosis (AVA); however how these vessels are being established during luteolysis remains unknown.

Methods

The bovine CL at different luteal stages and regressing bovine CL induced by prostaglandin F_2α (PGF) were histologically analyzed using light and electron microscopic levels. The changes in mRNA expression of genes encoding α-smooth muscle actin (SMA; Acta2) and transforming growth factor β1 (Tgfb1) in luteal tissues were analyzed by quantitative RT-PCR.

Results

AVA-like vessels appeared in the regressed CL with a diamet

SUBMITTER: Nio-Kobayashi J 

PROVIDER: S-EPMC5070142 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature