alexa Allometric scaling of fatty acyl chains in fowl liver, lung and kidney, but not in brain phospholipids.
Microbiology

Microbiology

Journal of Antivirals & Antiretrovirals

Author(s): Szab A, Mzes M, Romvri R, Fbel H

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Abstract The phospholipid (PL) fatty acyl chain (FA) composition (mol\%) was determined in the kidney, liver, lung and brain of 8 avian species ranging in body mass from 150g (Japanese quail, Coturnix coturnix japonica) to 19kg (turkey, Meleagris gallopavo). In all organs except the brain, docosahexaenoic acid (C22:6 n3, DHA) was found to show a negative allometric scaling (allometric exponent: B=-0.18; -0.20 and -0.24, for kidney, liver and lung, respectively). With minor inter-organ differences, smaller birds had more n3 FAs and longer FA chains in the renal, hepatic and pulmonary PLs. Comparing our results with literature data on avian skeletal muscle, liver mitochondria and kidney microsomes and divergent mammalian tissues, the present findings in the kidney, liver and lung PLs seem to be a part of a general relationship termed "membranes as metabolic pacemakers". Marked negative allometric scaling was found furthermore for the tissue malondialdehyde concentrations in all organs except the brain (B=-0.17; -0.13 and -0.05, respectively). In the liver and kidney a strong correlation was found between the tissue MDA and DHA levels, expressing the role of DHA in shaping the allometric properties of membrane lipids. 2009 Elsevier Inc. All rights reserved. This article was published in Comp Biochem Physiol B Biochem Mol Biol and referenced in Journal of Antivirals & Antiretrovirals

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