Number and state of rat ovarian mast cells after exogenous administration of luteinizing hormone.
Diestrous rats were treated with an injection of luteinizing hormone (LH), and their ovaries were examined for mast cell number and stage of degranulation at 2 and 4 hr post-injection. LH tripled the number of medullary mast cells at 2 hr. The source or origin of the additional mast cells is unknown. Comparison of the present results with other studies of rat ovarian mast cell dynamics suggests the occurrence of a reduction in mast cell number in early to mid-proestrus followed by an LH-induced increase in late proestrus.
Jones
R E
RE
Department of Environmental, Population, and Organismic Biology, University of Colorado, Boulder 80309.
Duvall
D
D
Guillette
L J
LJ
Lopez
K H
KH
D000818:Animals; D004971:Estrus / Q000502:physiology; D005260:Female; D007986:Luteinizing Hormone / Q000494:pharmacology*; D008407:Mast Cells / Q000187:drug effects* / Q000648:ultrastructure; D010053:Ovary / Q000166:cytology* / Q000187:drug effects; D051381:Rats; D017207:Rats, Sprague-Dawley
D007986:Luteinizing Hormone