Abstract
The changes in catalase activity in carp (Cyprinus carpio) ovarian follicles at different developmental stages were investigated. The effect of follicle-stimulating hormone (FSH) on catalase activity and estradiol secretion by carp ovarian follicles was studied to establish a developmental role of catalase in folliculogenesis in fish ovary. The follicular homogenates from large follicles showed higher (9.45 ± 0.64 units/mg protein) catalase-specific activity than the small follicles (2.94 ± 0.22 units/mg protein). The FSH significantly (P < 0.05) stimulated the catalase activity in both size categories of the follicles in vitro. At the dose level of 100 ng FSH/ml culture medium, about 38 and 25% increase in catalase-specific activity was observed compared with the respective controls in small and large follicles respectively. The increase in catalase after FSH treatment was also accompanied by a similar increase in estradiol secretion. This study indicates that catalase might play a functional role in carp ovarian follicles.
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Behl, R. Stimulation of catalase activity in carp (Cyprinus carpio) ovarian follicles by gonadotropin in vitro. Fish Physiol Biochem 32, 203–207 (2006). https://doi.org/10.1007/s10695-006-0012-7
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DOI: https://doi.org/10.1007/s10695-006-0012-7