High resistence from different organeles of chicken Brown Nick ovary and liver to the lipid peroxidation

GUTIERREZ AM; REBOREDO GR; ZEINSTEGER P; PALACIOS A

BIOCELL

INST HISTOL EMBRIOL-CONICET

Lugar: Mendoza; Año: 2010 vol. 34 p. 79 - 79

0327-9545

Previous studies have demonstrated that birds have low degree of unsaturation of fatty acids (FA), when compared to mammals of similar body size. The aim of this study was to evaluate de FA composition and lipid peroxidation sensitivity of mitochondria and microsomes obtained from ovary and liver of young poultry hens. The FA composition of mitochondria and microsomes was obtained by gas chromatography. Lipid peroxidation (LP) was quantified by means of chemiluminescence (Q). In mitochondria and microsomes of both organelles there prevailed AG C16:0 and C18:0, AG not saturated more relevant was C18.T and CI8:2. In mitochondria of both organs we do not find C22:6. Light emission equal to chemiluminescence originated from liver and heart organelles was not statistically significant when control and peroxidized samples were compared .The AG profiles, were not modified after LP. Our results indicate that in the organelles of ovary and liver of the chicken predominantly unsaturated fatty acids with low number of double bonds. This and other factors might be the cause of the low sensitivity to LP observed in these organs, protecting them against oxidative damage.