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An intrabursal injection procedure for the in vivo study of ovulation in hamsters

✍ Scribed by Martin, Gary G. ;Talbot, Prudence ;Pendergrass, Paula

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
735 KB
Volume
216
Category
Article
ISSN
0022-104X

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✦ Synopsis

Abstract

A new procedure for studying the effect of various drugs on ovulation in vivo is described. In golden hamsters (Mesocricetus auratus), each ovary is enclosed within a complete bursa that is continuous with the oviduct. Drugs can be applied topically to ovaries by injection of a solution into a bursal cavity of an anesthetized hamster several hours before ovulation: the contralateral ovary serves as an in vivo control and receives no treatment. After ovulation, the number of ruptured follicles on experimental and control ovaries are compared. Data presented show that: (1) the operation and injection procedure per se do not affect ovulation; (2) normal saline is a suitable vehicle for administration of drugs by this route; (3) compounds with molecular weights of less than 1,000 daltons rapidly penetrate all layers of the follicle wall; (4) solutions injected into the bursal cavity 6 hours before ovulation remain there until ovulation. The advantages and limitations of this technique are discussed.

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