Biphasic change in correlation between ovarian lipid peroxides and progestational activity during pseudopregnancy induced in immature rats

Biphasic change in correlation between ovarian lipid peroxides and progestational activity during pseudopregnancy induced in immature rats

We measured ovarian lipid peroxide (LP) levels and plasma progestins, progesterone (P4) and 20alpha-dihydroprogesterone, throughout pseudopregnancy in gonadotropin-primed immature rats. Plasma P4 fluctuated, with two peaks on day 5 (PSP5) and 8 of pseudopregnancy, and then declined to the basal leve...

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Veröffentlicht in:Journal of Veterinary Medical Science 1999/09/25, Vol.61(9), pp.1039-1042
Hauptverfasser: Kurusu, S. (Kitasato Univ., Towada, Aomori (Japan). Coll. of Veterinary and Animal Sciences), Tsukamoto, K, Konishi, H, Tachibana, M, Kawaminami, M, Hashimoto, I
Format: Artikel
Sprache:eng
Schlagworte:
20-alpha-Dihydroprogesterone - blood
Animals
Chorionic Gonadotropin - physiology
Female
LIPID PEROXIDATION
lipid peroxide
Lipid Peroxides - analysis
Lipid Peroxides - physiology
Luteal Phase - physiology
Malondialdehyde - analysis
Ovary - physiology
Ovulation
PEROXIDACION LIPIDICA
PEROXYDATION DES LIPIDES
Pregnancy
PROGESTERONA
PROGESTERONE
Progesterone - blood
progestin
Progestins - blood
PSEUDOGESTATION
PSEUDOPREGNANCY
Pseudopregnancy - physiopathology
Pseudopregnancy - veterinary
Radioimmunoassay - veterinary
RAT
RATA
RATS
Rats, Wistar
SEUDOGESTACION
Statistics, Nonparametric
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Zusammenfassung:We measured ovarian lipid peroxide (LP) levels and plasma progestins, progesterone (P4) and 20alpha-dihydroprogesterone, throughout pseudopregnancy in gonadotropin-primed immature rats. Plasma P4 fluctuated, with two peaks on day 5 (PSP5) and 8 of pseudopregnancy, and then declined to the basal level by PSP12. Ovarian LP increased from PSP1 to PSP4, decreased temporarily until PSP8, and then rose gradually until PSP14. From PSP1 through PSP7, ovarian LP was positively correlated with total progestins according to the Spearman ranked correlation coefficient (r= +0.829, p0.05). In contrast, a negative correlation between ovarian LP and plasma P4 was apparent (r
ISSN:0916-7250
1347-7439
DOI:10.1292/jvms.61.1039