Reproductive capacity of aging female rats

Huang, HH; Meites, J

HERO ID

6936479

Reference Type

Journal Article

Year

1975

Language

English

PMID

1170518

HERO ID 6936479
In Press No
Year 1975
Title Reproductive capacity of aging female rats
Authors Huang, HH; Meites, J
Journal Neuroendocrinology
Volume 17
Issue 4
Page Numbers 289-295
Abstract Multiparous female Long-Evans rats, 20 months or older, were seen to progress from irregular estrous cycles to a constant-estrous syndrome to a series of irregular pseudopregnancies to an anestrous state. An animal in constant estrus was characterized by ovaries with well developed and sometimes cystic follicles, no corpora lutea, an estrogen-stimulated uterus, and an anterior pituitary that appeared normal. Repeatedly pseudopregnant rats had long diestrous periods of variable length, ovaries with many corpora lutea, uteri with numerous secretory glands, and anterior pituitaries that often showed hemorrhagic or small tumorous areas. Anestrous rats had small, atrophic ovaries with no obvious follicular or luteal elements, atrophic uteri, and large pituitary tumors. Twice-daily injections of L-dopa induced the resumption of regular or irregular estrous cycles in most constant-estrous but not in pseudopregnant or anestrous rats.
Doi 10.1159/000122367
Pmid 1170518
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English