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Start Over Subject oestrous cycle

1. Glutathione-dependent antioxidant enzyme activities and glutathione content in the rat brain at different stages of oestrous cycle

Creator:
Saičic, Z. S., Pajovic, S. B., Korac, B., Spasic, M. B., Martinovic, J. V., and Petrovic, V. M.
Type:
article, model:article, and TEXT
Subject:
brain, oestrous cycle, glutathione, glutathione-dependent enzymes, and rats
Language:
English
Description:
Enzymatic activities of glutathione peroxidase, glutathione-S-transferase, glutathione reductase and catalase, as we 11 as the glutathione content were measured in the brain tissue of regularly cycling rats at dioestrus, proestrus an*d estrus. The activity of glutathione peroxidase was found to be suppressed at proestrus, whereas that of catalase was increased at dioestrus. Glutathione transferase and glutathione reductase activities, as well as the glutathione comtent appeared to be stable during the oestrous cycle. These results suggest that, in the female rat, glutathione peroxidase and catalase activities in the brain tissue are influenced by the ovarian hormone status.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Oestrous cycle in septal rat females

Creator:
Nováková, V., Šterc, J., and Mozeš, Š.
Type:
article, model:article, and TEXT
Subject:
oestrous cycle, septal lesion, stock differences, and life history
Language:
English
Description:
Bilateral lesions of the dorsal part of the septal area were produced in the brain of female rats of Wistar and Long-Evans stocks. The cytogram of their vaginal smears was evaluated repeatedly from the 30th day after surgery and permanent impairment of their oestrous cycle was found. In comparison with intact control females, oestrous phases were detected more frequently whereas dioestrous phases were observed less frequently. The proportions between the individual periods of the oestrous phase (i.e. pro-oestrus, oestrus and metoestrus) were equal in both septal and intact animals. Mo difference was found between the rat stocks used. Similarly, the previous life history of the rats which had been housed either in a socially impoverished environment (i. e. single cages) or in large communities (colonies) exerted no influence upon the postoperative impairment of the oestrous cycle.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public