Gluconeogenesis in Brain and Liver During Daily Torpor in Deer Mice (Peromyscus maniculatus)

2000 ◽  
pp. 347-353 ◽  
Author(s):  
James Nestler ◽  
Tiffany Lingenfelter ◽  
Gary Gonthier ◽  
Jenee Gifford ◽  
Stacy Peterson
Keyword(s):  
Peromyscus Maniculatus ◽  
Deer Mice ◽  
Daily Torpor

Energy partitioning in torpor-sensitive and torpor-resistant deer mice (Peromyscus maniculatus)

1996 ◽  
Vol 74 (7) ◽  
pp. 1179-1186 ◽  
Author(s):  
Brandon A. Sheafor ◽  
Gregory K. Snyder
Keyword(s):  
Energy Saving ◽  
Peromyscus Maniculatus ◽  
Daily Basis ◽  
Deer Mice ◽  
Energy Costs ◽  
Daily Torpor ◽  
Small Rodents ◽  
Energy Turnover ◽  
Fat Reserves ◽  
Consumption Rates

We examined metabolic rates in 25 deer mice, Peromyscus maniculatus nebrascensis, held at an ambient temperature of 10 °C and found that all of them had the ability to enter torpor. However, we found a gradation between the most torpor-sensitive and the most torpor-resistant animals, suggesting that the expression of torpor is more than a simple all-or-nothing phenomenon. On a daily basis, the most torpor-sensitive and torpor-resistant mice partition energy similarly when food is not restricted. On restricted food, both groups of mice decrease the amount of time spent active and increase the amount of time spent at rest and in torpor. In addition, both groups of mice decrease oxygen-consumption rates and body temperatures during rest and the most torpor-sensitive mice further decrease energy costs by entering longer and deeper bouts of torpor. However, the overall energy saving due to torpor is only about 6%. Thus, the widely held view that the adaptive advantage of daily torpor is a large energy saving may be open to question. Alternatively, daily torpor may be important for reducing the rate of energy turnover when these small rodents must rely on body fat reserves.

Glycolytic Enzyme Binding during Entrance to Daily Torpor in Deer Mice (Peromyscus maniculatus)

1997 ◽  
Vol 70 (1) ◽  
pp. 61-67 ◽  
Author(s):  
James R. Nestler ◽  
Stacy J. Peterson ◽  
B. David Smith ◽  
R. Brian Heathcock ◽  
Christina R. Johanson ◽  
...  
Keyword(s):  
Peromyscus Maniculatus ◽  
Glycolytic Enzyme ◽  
Deer Mice ◽  
Daily Torpor ◽  
Enzyme Binding

scholarly journals Changes in Total Body Fat during Daily Torpor in Deer Mice (Peromyscus maniculatus)

1996 ◽  
Vol 77 (1) ◽  
pp. 147-154 ◽  
Author(s):  
J. R. Nestler ◽  
G. R. Dieter ◽  
B. G. Klokeid
Keyword(s):  
Body Fat ◽  
Peromyscus Maniculatus ◽  
Deer Mice ◽  
Daily Torpor ◽  
Total Body Fat ◽  
Total Body

scholarly journals Dehydrogenase-dependent Ethanol Metabolism in Deer Mice (Peromyscus maniculatus) Lacking Cytosolic Alcohol Dehydrogenase

1989 ◽  
Vol 264 (10) ◽  
pp. 5593-5597
Author(s):  
C Norsten ◽  
T Cronholm ◽  
G Ekström ◽  
J A Handler ◽  
R G Thurman ◽  
...  
Keyword(s):  
Alcohol Dehydrogenase ◽  
Peromyscus Maniculatus ◽  
Ethanol Metabolism ◽  
Deer Mice

Genetic Evidence for a Hantavirus Enzootic in Deer Mice (Peromyscus maniculatus) Captured a Decade before the Recognition of Hantavirus Pulmonary Syndrome

Virology ◽  
1994 ◽  
Vol 204 (2) ◽  
pp. 563-568 ◽  
Author(s):  
Vivek R. Nerurkar ◽  
Jin-Won Song ◽  
Ki-Joon Song ◽  
James W. Nagle ◽  
Brian Hjelle ◽  
...  
Keyword(s):  
Peromyscus Maniculatus ◽  
Genetic Evidence ◽  
Hantavirus Pulmonary Syndrome ◽  
Deer Mice
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