scholarly journals Circadian Disruption Alters the Effects of Lipopolysaccharide Treatment on Circadian and Ultradian Locomotor Activity and Body Temperature Rhythms of Female Siberian Hamsters

2015 ◽  
Vol 30 (6) ◽  
pp. 543-556 ◽  
Author(s):  
Brian J. Prendergast ◽  
Erin J. Cable ◽  
Tyler J. Stevenson ◽  
Kenneth G. Onishi ◽  
Irving Zucker ◽  
...  
Keyword(s):  
Locomotor Activity ◽  
Body Temperature ◽  
Circadian Disruption ◽  
Siberian Hamsters ◽  
Temperature Rhythms

Circadian locomotor activity and core-body temperature rhythms in Alzheimer's disease

1995 ◽  
Vol 16 (5) ◽  
pp. 765-771 ◽  
Author(s):  
Andrew Satlin ◽  
Ladislav Volicer ◽  
Edward G. Stopa ◽  
David Harper
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Core Body Temperature ◽  
Temperature Rhythms ◽  
Core Body

Suprachiasmatic nuclei influence torpor and circadian temperature rhythms in hamsters

1989 ◽  
Vol 257 (1) ◽  
pp. R210-R215 ◽  
Author(s):  
N. F. Ruby ◽  
N. Ibuka ◽  
B. M. Barnes ◽  
I. Zucker
Keyword(s):  
Locomotor Activity ◽  
Power Spectral Analysis ◽  
Secretory Activity ◽  
Suprachiasmatic Nuclei ◽  
Activity Rhythms ◽  
Siberian Hamsters ◽  
Power Spectral ◽  
Temperature Rhythms ◽  
Bilateral Lesions ◽  
Torpor Bouts

Siberian hamsters were maintained in a short-day photoperiod (8 h light-day) at 15 degrees C; body temperature (Tb) and locomotor activity were telemetrically recorded at 10-min intervals over the course of 5 mo. Animals manifesting repeated torpor bouts (Tb less than 30 degrees C for several hours) were subjected to lesions of the suprachiasmatic nuclei (SCN), pinealectomy, or sham operations. In the 15 wk after surgery, none of the animals with bilateral lesions of the SCN exhibited torpor; circadian Tb and locomotor activity rhythms, as determined by cosinor and power spectral analysis, also were absent in SCN-lesioned hamsters. Pinealectomized animals and brain-lesioned hamsters with intact SCN had normal circadian temperature and activity rhythms and showed torpor for at least 4 wk postsurgically. Expression of torpor and circadian rhythms of Tb and activity are dependent on intact SCN and persist for several weeks in the absence of pineal secretory activity.

Flexibility in body temperature rhythms of free-living natal mole-rats (Cryptomys hottentotus natalensis)

2021 ◽  
pp. 102973
Author(s):  
M.K. Oosthuizen ◽  
G. Robb ◽  
A. Harrison ◽  
A. Froneman ◽  
K. Joubert ◽  
...  
Keyword(s):  
Body Temperature ◽  
Free Living ◽  
Temperature Rhythms
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