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Titolo:
Immune challenge affects basal metabolic activity in wintering great tits
Autore:
Ots, I; Kerimov, AB; Ivankina, EV; Ilyina, TA; Horak, P;
Indirizzi:
Univ Tartu, Inst Zool & Hydrobiol, EE-51014 Tartu, Estonia Univ Tartu Tartu Estonia EE-51014 l & Hydrobiol, EE-51014 Tartu, Estonia Moscow MV Lomonosov State Univ, Fac Biol, Dept Vertebrate Zool, Moscow 119899, Russia Moscow MV Lomonosov State Univ Moscow Russia 119899 oscow 119899, Russia Moscow State Univ, Zvenigorod Biol Stn, Moscow 143092, Russia Moscow StateUniv Moscow Russia 143092 d Biol Stn, Moscow 143092, Russia
Titolo Testata:
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
fascicolo: 1472, volume: 268, anno: 2001,
pagine: 1175 - 1181
SICI:
0962-8452(20010607)268:1472<1175:ICABMA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEALTH STATE INDEXES; TRADE-OFFS; ECOLOGICAL IMMUNOLOGY; INFECTIOUS-DISEASES; ENERGETIC STRESS; PARUS-MAJOR; BIRDS; CHICKENS; BLOOD; IMMUNOSUPPRESSION;
Keywords:
immune challenge; basal metabolic rates; Parus major; heterophile-to-lymphocyte ratio; mass loss;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Horak, P Univ Tartu, Inst Zool & Hydrobiol, Vanemuise 46, EE-51014 Tartu, Estonia Univ Tartu Vanemuise 46 Tartu Estonia EE-51014 14 Tartu, Estonia
Citazione:
I. Ots et al., "Immune challenge affects basal metabolic activity in wintering great tits", P ROY SOC B, 268(1472), 2001, pp. 1175-1181

Abstract

The costs of exploiting an organism's immune function are expected to formthe basis of man) life-history trade-offs.. However, there has been debateal,out whether such costs can he paid in energetic and nutritional terms. We addressed this question in a study of wintering, free-living, male greattits by injecting them with a novel, non-pathogenic antigen (sheep red blood cells) and measuring the changes in their basal metabolic rates and various condition indices subsequent to immune challenge. The experiment showedthat activation of the immune system altered the metabolic activity and profile of immune cells in birds during the week subsequent to antigen injection: individuals mounting an immune response had nearly 9% higher basal metabolic rates, 8% lower plasma albumin levels and 37% higher heterophile-to-lymphocyte ratios (leucocytic stress indices) than sham-injected control birds. The) also lost nearly 3% (0.5 g) of their body mass subsequent to the immune challenge. Individuals that mounted stronger antibody responses lostmore mass during the immune challenge. These results suggest that energetic expenditures to immune response may have a non-trivial impact upon an individual's condition.

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Documento generato il 04/12/20 alle ore 02:16:04