Contents The corpus luteum (CL) is an ephemeral endocrine organ. During its lifespan, it
undergoes a period of extremely rapid growth that involves hypertrophy, proliferation and …

Prostaglandin (PG) F2α is the primary luteolysin in most species. A single treatment with
PGF2α will cause regression of the mid-cycle but not the early-cycle (Days 1-5 after estrus) …

Administration of prostaglandin (PG) F2α in cattle during the mid-luteal phase (Days 8–12 of
the estrous cycle) drastically reduces the plasma progesterone concentrations and the …

After the luteinizing hormone (LH) surge, the cells that remain from the ovulated follicle
undergo a process of differentiation termed luteinization. Two key features of the cells after …

A viable corpus luteum (CL) producing an adequate amount of progesterone is absolutely
essential for establishment and maintenance of pregnancy. One function of embryonic …

This review examines the function of the corpus luteum (CL) with emphasis on pregnancy in
ruminant models and the possible impact of pregnancy in conferring luteal resistance to …

In recent years, considerable progress has been made in our understanding of the
endocrine mechanisms that control the pattern and timing of uterine secretion of …

To examine possible mechanisms involved in resistance of the ovine corpus luteum to the
luteolytic activity of prostaglandin (PG) F2α, the enzymatic activity of 15 …

Luteal regression is caused by a pulsatile release of prostaglandin (PG) F2α from the uterus
in the late luteal phase in most mammals including cattle. Although it has been proposed in …