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First published online January 18, 2008
Journal of Experimental Biology 211, 377-381 (2008)
Published by The Company of Biologists 2008
doi: 10.1242/jeb.012856
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Long flights and age affect oxidative status of homing pigeons (Columba livia)

David Costantini1,2,*, Gaia Dell'Ariccia1 and Hans-Peter Lipp1

1 Division of Neuroanatomy and Behaviour, Institute of Anatomy, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
2 Dipartimento di Biologia Animale e dell'Uomo, University La Sapienza, Viale dell'Università 32, I-00185 Roma, Italy


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  		Fig. 1. Effects of flight duration on oxidative status. Pigeons that flew around 200 km (LD, long distance; N=7) showed (A) increased levels of oxidative damage as measured by serum reactive oxygen metabolites (ROMs), (B) decreased total serum antioxidant capacity (OXY), and (C) increased levels of oxidative stress (OS) as measured by the ratio between ROMs and OXY (x1000) compared with both controls (C; N=7) or pigeons that flew around 60 km (SD, short distance; N=8). Values are shown as mean ± s.e.m. of post- minus pre-treatment values. P values of the generalized linear/non-linear models are shown.

 

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  		Fig. 2. The effect of age on total serum antioxidant capacity. The change (post- minus pre-flight values) in the total serum antioxidant capacity (OXY) is negatively correlated with age (r=–0.55, N=22, P=0.008). Regression line and 95% confidence interval (broken lines) are shown. C, control; SD, short distance; LD, long distance.

 

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