| Social stress in guinea pigs. | |
| | |
MedLine Citation:
|
PMID: 2574889 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Confrontation studies between eight pairs of two 7-8 months old male guinea pigs, each raised with one female from their 30th day of age, were conducted in an enclosure of 2 m2 in the presence of an unfamiliar female. The opponents were chronically kept together for up to 8 days. When they were not separated after 52 hr, one or (in 1 case) both males fell into a comatose state and died 5-8 days after the onset of the confrontation. Four hr after the onset of the confrontations both opponents showed significantly increased plasma glucocorticoid (CS) titers. At this time as well as 24 hr earlier, prospective winners (PW) and prospective losers (PL) did not yet differ in any physiological parameter measured. Forty-eight hr later, PW were characterized by a low body weight loss, low CS, high testosterone (T) and elevated plasma-catecholamine (CA) values. In contrast, PL showed a high body weight loss, very high CS titers, low T-titers and more elevated CA values than PW. Despite these highly significant differences in physiological parameters, PL and PW did not yet differ in the frequency of any agonistic behavioral element recorded. Seventy-two hr after the onset of the chronic cohabitation, losers began to behave more and more passive, they ceased feeding and drinking and were less and less involved in social interactions. The physiological differences between winners and losers intensified.(ABSTRACT TRUNCATED AT 250 WORDS) |
| | |
Authors:
|
N Sachser; C Lick |
Related Documents
:
|
8794499 - Do obstetric complications cause the earlier age at onset in male than female schizophr... 8970459 - Basal ganglia volume and proximity to onset in presymptomatic huntington disease. 14675749 - Academic deterioration prior to first episode schizophrenia in young singaporean males. 10597419 - Assessment of estimation procedures for risk and onset hazard with dependent data. 10503559 - The influence of age on disease manifestations and serological characteristics in prima... 20807659 - Age at onset of multiple sclerosis is correlated to use of combined oral contraceptives... 10527839 - Association between an alpha(2) macroglobulin dna polymorphism and late-onset alzheimer... 15690559 - Impact of adolescence and gender on asthma hospitalization: a population-based birth co... 12788289 - The use of low-frequency vocalizations in african elephant(loxodonta africana) reproduc... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Physiology & behavior Volume: 46 ISSN: 0031-9384 ISO Abbreviation: Physiol. Behav. Publication Date: 1989 Aug |
Date Detail:
|
Created Date: 1990-01-30 Completed Date: 1990-01-30 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0151504 Medline TA: Physiol Behav Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 137-44 Citation Subset: IM |
Affiliation:
|
Department of Animal Physiology, University of Bayreuth, West Germany. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adrenal Glands
/
enzymology Aggression / physiology* Animals Behavior, Animal / physiology Blood Glucose / analysis Blood Urea Nitrogen Body Weight Cholesterol / blood Creatinine / blood Dominance-Subordination* Epinephrine / blood Glucocorticoids / blood Guinea Pigs Male Norepinephrine / blood Social Dominance* Stress, Psychological* / blood, pathology Testosterone / blood Tyrosine 3-Monooxygenase / metabolism |
| Chemical | |
Reg. No./Substance:
|
0/Blood Glucose; 0/Glucocorticoids; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 57-88-5/Cholesterol; 58-22-0/Testosterone; 60-27-5/Creatinine; EC 1.14.16.2/Tyrosine 3-Monooxygenase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The rise and fall of Homo sapiens sapiens.
Next Document: Responses of hypothalamic paraventricular neurons in vitro to norepinephrine and other feeding-relev...