PMID- 18799633
OWN - NLM
STAT- MEDLINE
DCOM- 20090106
LR  - 20220225
IS  - 0363-6119 (Print)
IS  - 1522-1490 (Electronic)
IS  - 0363-6119 (Linking)
VI  - 295
IP  - 5
DP  - 2008 Nov
TI  - Fluctuations in central and peripheral temperatures associated with feeding 
      behavior in rats.
PG  - R1415-24
LID - 10.1152/ajpregu.90636.2008 [doi]
AB  - We examined the pattern of temperature fluctuations in the nucleus accumbens 
      (NAcc), temporal muscle, and skin, along with locomotion in food-deprived and 
      nondeprived rats following the presentation of an open or closed food container 
      and during subsequent eating or food-seeking behavior without eating. Although 
      rats in food-deprived, quiet resting conditions had more than twofold lower 
      spontaneous locomotion and lower temperature values than in nondeprived 
      conditions, after presentation of a container, they consistently displayed 
      food-seeking behavior, showing much larger and longer temperature changes. When 
      the container was open, rats rapidly retrieved food and consumed it. Food 
      consumption was preceded and accompanied by gradual increases in brain and muscle 
      temperatures ( approximately 1.5 degrees C) and a weaker, delayed increase in 
      skin temperature ( approximately 0.8 degrees C). All temperatures began to 
      rapidly fall immediately after eating was completed, but NAcc and muscle 
      temperatures returned to baseline after approximately 35 min. When the container 
      was closed and rats were unable to obtain food, they continued food-seeking 
      activity during the entire period of presentation. Similar to eating, this 
      activity was preceded and accompanied by gradual temperature increases in the 
      brain and muscle, which were somewhat smaller than those during eating ( 
      approximately 1.2 degrees C), with no changes in skin temperature. In contrast to 
      trials with eating, NAcc and muscle temperatures continued to increase for 
      approximately 10 min after the container was removed from the cage and the rat 
      continued food-seeking behavior, with a return to baselines after approximately 
      50 min. These temperature fluctuations are discussed with respect to alterations 
      in metabolic brain activity associated with feeding behavior, depending upon 
      deprivation state and food availability.
FAU - Smirnov, Michael S
AU  - Smirnov MS
AD  - Behavioral Neuroscience Branch, National Institute on Drug Abuse-Intramural 
      Research Program, National Institutes of Health, DHHS, 5500 Nathan Shock Drive, 
      Baltimore, Maryland 21224, USA.
FAU - Kiyatkin, Eugene A
AU  - Kiyatkin EA
LA  - eng
GR  - ZIA DA000445-09/ImNIH/Intramural NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Intramural
DEP - 20080917
PL  - United States
TA  - Am J Physiol Regul Integr Comp Physiol
JT  - American journal of physiology. Regulatory, integrative and comparative 
      physiology
JID - 100901230
SB  - IM
MH  - Animals
MH  - Body Temperature/*physiology
MH  - Brain/physiology
MH  - Central Nervous System/*physiology
MH  - Eating/physiology
MH  - Feeding Behavior/*physiology
MH  - Male
MH  - Motor Activity/physiology
MH  - Muscle, Skeletal/physiology
MH  - Nucleus Accumbens/physiology
MH  - Peripheral Nerves/*physiology
MH  - Rats
MH  - Rats, Long-Evans
MH  - Skin Temperature/physiology
MH  - Vasoconstriction/physiology
MH  - Vasodilation/physiology
PMC - PMC2584855
EDAT- 2008/09/19 09:00
MHDA- 2009/01/07 09:00
PMCR- 2009/11/01
CRDT- 2008/09/19 09:00
PHST- 2008/09/19 09:00 [pubmed]
PHST- 2009/01/07 09:00 [medline]
PHST- 2008/09/19 09:00 [entrez]
PHST- 2009/11/01 00:00 [pmc-release]
AID - 90636.2008 [pii]
AID - R-90636-2008 [pii]
AID - 10.1152/ajpregu.90636.2008 [doi]
PST - ppublish
SO  - Am J Physiol Regul Integr Comp Physiol. 2008 Nov;295(5):R1415-24. doi: 
      10.1152/ajpregu.90636.2008. Epub 2008 Sep 17.