Comparative histological studies of the stomach, small intestine, and colon of warm and active and hibernating arctic ground squirrels, Spermophilus undulatus

1958 ◽  
Vol 130 (4) ◽  
pp. 747-757 ◽  
Author(s):  
William V. Mayer ◽  
Sol Bernick
Keyword(s):  
Small Intestine ◽  
Ground Squirrels ◽  
Histological Studies ◽  
Spermophilus Undulatus ◽  
Arctic Ground Squirrels

Ketone bodies: a source of energy during hibernation

1981 ◽  
Vol 59 (5) ◽  
pp. 754-760 ◽  
Author(s):  
Josefine C. Rauch ◽  
Hans W. Behrisch
Keyword(s):  
Ground Squirrel ◽  
Ketone Body ◽  
Ketone Bodies ◽  
Ground Squirrels ◽  
Brown Fat ◽  
Arctic Ground Squirrel ◽  
Tissue Concentrations ◽  
Brown Adipose ◽  
Spermophilus Undulatus ◽  
Arctic Ground Squirrels

Tissue concentrations of acetoacetate and β-hydroxybutyrate (ketone bodies) were determined for the blood, liver, caecum, heart, and axillary brown fat, from nonhibernating and hibernating arctic ground squirrels, Spermophilus undulatus, in late spring and during winter, respectively. AcetylCoA and acetoacetylCoA concentrations were measured in the liver, heart, and brown adipose tissue.Except that the concentration of acetylCoA remained unchanged in the liver, all tissues investigated showed elevated concentrations of acetylCoA, acetoacetylCoA, and ketone bodies during the hibernating state. From the increased concentrations of acetoacetate and β-hydroxybutyrate it was deduced that active ketone body metabolism occurs in the hibernating arctic ground squirrel, and that during hibernation, ketone bodies are probably an important source of energy.

scholarly journals Habitat selection by arctic ground squirrels (Spermophilus parryii)

2010 ◽  
Vol 91 (5) ◽  
pp. 1251-1260 ◽  
Author(s):  
Oliver E. Barker ◽  
Andrew E. Derocher
Keyword(s):  
Habitat Selection ◽  
Ground Squirrels ◽  
Spermophilus Parryii ◽  
Arctic Ground Squirrels

MAPKs are differentially modulated in arctic ground squirrels during hibernation

2005 ◽  
Vol 80 (6) ◽  
pp. 862-868 ◽  
Author(s):  
Xiongwei Zhu ◽  
Mark A. Smith ◽  
George Perry ◽  
Yang Wang ◽  
Austin P. Ross ◽  
...  
Keyword(s):  
Ground Squirrels ◽  
Arctic Ground Squirrels

scholarly journals The ‘Swiss roll’: a simple technique for histological studies of the rodent intestine

1981 ◽  
Vol 15 (1) ◽  
pp. 57-60 ◽  
Author(s):  
C. Moolenbeek ◽  
E. J. Ruitenberg
Keyword(s):  
Small Intestine ◽  
Simple Technique ◽  
Entire Length ◽  
Microscopical Examination ◽  
Histological Studies ◽  
Entire Small Intestine ◽  
Laboratory Rodents ◽  
Histological Processing

The entire small intestine of laboratory rodents can be removed, divided in various portions, opened longitudinally and rolled with the mucosa outwards. After histological processing microscopical examination of the entire length of the small intestine is then possible.

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