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Titolo:
Trait-like immunological and hematological measures in female rhesus across varied environmental conditions
Autore:
Lilly, AA; Mehlman, PT; Higley, JD;
Indirizzi:
NIAAA, Clin Studies Lab, Primate Unit, Poolesville, MD 20837 USA NIAAA Poolesville MD USA 20837 b, Primate Unit, Poolesville, MD 20837 USA SUNY Stony Brook, Dept Anthropol, Stony Brook, NY 11794 USA SUNY Stony Brook Stony Brook NY USA 11794 opol, Stony Brook, NY 11794 USA
Titolo Testata:
AMERICAN JOURNAL OF PRIMATOLOGY
fascicolo: 3, volume: 48, anno: 1999,
pagine: 197 - 223
SICI:
0275-2565(1999)48:3<197:TIAHMI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONHUMAN-PRIMATES; HORMONAL RESPONSES; IMMUNE FUNCTION; MATERNAL SEPARATION; CORTISOL SECRETION; SOCIAL SEPARATION; IRON OVERLOAD; MONKEYS; STRESS; LYMPHOCYTES;
Keywords:
Macaca mulatta; traits; individual differences; immunology; hematology; stress; CD subsets;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
67
Recensione:
Indirizzi per estratti:
Indirizzo: Lilly, AA 5843 Van Simmons, Wauchula, FL 33873 USA 5843 Van Simmons Wauchula FL USA 33873 , Wauchula, FL 33873 USA
Citazione:
A.A. Lilly et al., "Trait-like immunological and hematological measures in female rhesus across varied environmental conditions", AM J PRIMAT, 48(3), 1999, pp. 197-223

Abstract

In this 2-year longitudinal study, 45 2-year-old female rhesus were observed as they were captured and removed from a free-ranging setting (Phase I),single caged for 1 year (Phase II), and housed in small, stable social groups for an additional year (Phase III). During the study, eight blood samples were taken, and hematological, immunological, and hormonal variables were assayed to determine whether I) any of the measures would exhibit trait-like, inter-individual longitudinal stability, despite fluctuations in population means induced by Phases I, II, and III; 2) plasma concentrations of cortisol, prolactin, and norepinephrine would be lowest in Phase III, and elevated during the periods of acute and chronic stress associated with Phases I and II; and 3) there would be any evidence of immunosuppression associated with Phases I and II. The results suggest that the majority of hematological/immunological variables were trait-like throughout the study in contrast to plasma cortisol, prolactin, and norepinephrine concentrations. Thus,red blood cells, hemoglobin, hematocrit, platelets, mean corpuscular volume and hemoglobin, as well as white blood cells, the absolute number of CD4(T-helper/ inducer) cells, the absolute number of CD8+ (T-suppressor/cytotoxic) cells, total T cells (CD2+%), total B cells (CD20+%), and the ratio of CD4+/ CD8+ cells were trait-like. The hematological measures were changeddramatically by capture and the subsequent single caging, with most not recovering to presumed baselines until after 12-28 weeks. The immune measureswere depressed at capture (excepting B cells), and during 7 months of single caging failed to return to normal levels associated with social housing. We thus conclude that single housing can produce significant, long-term features of Immunosuppression. Capture produced significant increases in plasma cortisol, prolactin, and norepinephrine concentrations. Long periods of single caging produced significant increases in plasma prolactin concentrations, indicative of stress-induced anxiety, and may also have been associated with down-regulation of plasma norepinephrine and cortisol concentrations. (C) 1999 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 01:22:37