Seasonal Variation in Male Gonadal Function in a Laboratory Population of Peromyscus leucopus

1973 ◽  
Vol 89 (2) ◽  
pp. 490 ◽  
Author(s):  
A. Bartke ◽  
M. C. Chang
Keyword(s):  
Seasonal Variation ◽  
Peromyscus Leucopus ◽  
Laboratory Population ◽  
Gonadal Function

scholarly journals MATERNAL AGE DRIVES SEASONAL VARIATION IN LITTER SIZE OF PEROMYSCUS LEUCOPUS

10.1644/013 ◽  
2004 ◽  
Vol 85 (5) ◽  
pp. 940-947 ◽  
Author(s):  
M. A. Havelka ◽  
J. S. Millar
Keyword(s):  
Seasonal Variation ◽  
Litter Size ◽  
Maternal Age ◽  
Peromyscus Leucopus

scholarly journals Seasonal variation in pituitary-gonadal function in free-ranging impala (Aepyceros melampus)

Reproduction ◽  
1991 ◽  
Vol 93 (2) ◽  
pp. 497-505 ◽  
Author(s):  
J. L. Brown ◽  
D. E. Wildt ◽  
J. R. Raath ◽  
V. de Vos ◽  
D. L. Janssen ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Gonadal Function ◽  
Free Ranging ◽  
Aepyceros Melampus

Ultrastructural investigation of spontaneous pituitary gonadotroph cell adenomas in aging Sprague-Dawley rats

1983 ◽  
Vol 41 ◽  
pp. 702-703
Author(s):  
D. J. McComb ◽  
J. Beri ◽  
F. Zak ◽  
K. Kovacs
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Epoxy Resin ◽  
Immunoelectron Microscopy ◽  
Tumor Type ◽  
Gonadal Function ◽  
Sprague Dawley ◽  
Male And Female ◽  
Reticulin Fibers ◽  
Sprague Dawley Rats

Gonadotroph cell adenomas of the pituitary are infrequent in human patients and are not invariably associated with altered gonadal function. To date, no animal model of this tumor type exists. Herein, we describe spontaneous gonadotroph cell adenomas in old male and female Sprague-Dawley rats by histology, immunocytology and electron microscopy.The material consisted of the pituitaries of 27 male and 38 female Sprague Dawley rats, all 26 months of age or older, removed at routine autopsy. Sections of formal in-fixed, paraffin-embedded tissue were stained with hematoxylin-phloxine-saffron (HPS), the PAS method and the Gordon-Sweet technique for the demonstration of reticulin fibers. For immunostaining, sections were exposed to anti-rat β-LH, anti-ratβ-TSH, anti-rat PRL, anti-rat GH and anti-rat ACTH 1-39. For electron microscopy, tissue was fixed in 2.5% glutaraldehyde, postfixed in 1% OsO4 and embedded in epoxy-resin. Tissue fixed in 10% formalin, embedded in epoxy resin without osmification, was used for immunoelectron microscopy.

Seasonal Variation in Eating Satisfaction in Norway

2000 ◽  
Author(s):  
Judith Perry ◽  
David Silvera ◽  
Jan Rosenvinge
Keyword(s):  
Seasonal Variation
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