Journal
GENERAL AND COMPARATIVE ENDOCRINOLOGY
Volume 135, Issue 1, Pages 35-41Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygcen.2003.08.002
Keywords
Oziotelphusa senex senex; arachidonic acid; prostaglandins; prostaglandin H synthase; ovarian maturation
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The possible involvement of prostaglandins in the regulation of ovarian development in the crab Oziotelphusa senex senex was investigated. Uptake of labelled arachidonic acid into the ovary of the crab was significantly greater than the other tissues. Prostaglandin H synthase activity was significantly increased in the ovary during the late vitellogenic stage when compared to immature ovary. The biosynthesis of different prostaglandins in the ovary was also measured during the crab reproductive cycle. Injection of prostaglandin F-2alpha and prostaglandin E-2 significantly increased ovarian index and oocyte diameter in a dose-dependent manner. In contrast, injection of prostaglandin D-2 did not affect ovarian growth. These results demonstrate the presence of prostaglandin biosynthetic system in ovary of the fresh water crabs. (C) 2003 Elsevier Inc. All rights reserved.
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