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Online Journal of Veterinary Research ©

 15 (4): 381-389, 2011. Extensively Redacted 2017.

Ovarian and placental P450-aromatase activity during second half of ovine pregnancy

 

Sokhtehzari A.1, Alirezaei M.2*, Mirzaei A.3, Neamati Sh.4

 

1 Department of Clinical Sciences,  2Division of Biochemistry and, 4Razi Herbal Medicines Research Center, School of Veterinary Medicine, Lorestan University, P.O. Box: 465, Khorram Abad, and 3Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran

 

ABSTRACT

 

Sokhtehzari A, Alirezaei M, Mirzaei A, Neamati Sh., Ovarian and placental P450-aromatase activity during second half of ovine pregnancy, Onl J Vet Res., 15 (4): 381-389, 2011.  Placental and ovarian P450-aromatase activity was assayed by ELISA and protein Lowry test from cotyledons, caruncles, corpus lutea and follicular fluid from 25 sheep carcasses at different stages of pregnancy. There were significant differences in aromatase activity between organs at the 3rd and 4th month of pregnancy but none during the last month of pregnancy. Each month of pregnancy was associated with a decrease of 0.49 Pmol/mg/30 minute in aromatase in corpora lutea, 0.04 in caruncles but an increase of 0.09 in cotyledons. Aromatase activity at the 3rd month of pregnancy was higher than that at the 4th month in follicular fluid. These results suggest that ovarian and placental aromatase activity changes during the 2nd half of ovine pregnancy but declines in follicular fluid.

 

Key words: Aromatase, Ovine, Pregnancy, Ovary, Placenta

 

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