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Corpora lutea (CL) were isolated from one rabbit ovary on days 4, 8, 16 (peak luteal function), 28 (functional regression) and 30 of pregnancy and processed for biochemical analysis of DNA integrity. Analysis of DNA integrity revealed the presence of oligonucleosomal fragments in day 28 and day 30 CL but not in day 16 CL. The extent of low molecular weight (<15 kb) DNA labeling was 6.6 ± 0.84 fold...
We have demonstrated that continuous administration of a GnRH-agonist (GnRH-Ag) in the rat during early pregnancy suppressed plasma progesterone levels within 8 h after the commencement of treatment. The purpose of the present study is to evaluate the hypothesis that in vivo GnRH-Ag treatment induces apoptotic cell death during early pregnancy. Rats were treated individually on day 8 of pregnancy...
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