Development of antioxidant capacity in tissues of the chick embryo

Gaál, T.; Mézes, Miklós; Noble, R. C.; Dixon, James C.; Speake, Brian K.

doi:10.1016/0305-0491(95)00125-5

Cited by 66 publications

(44 citation statements)

References 16 publications

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“…The results of the present study show that enzyme activity decreased with age in the liver during embryonic development up until hatching, which is in disagreement with the previous fi nding of Gaál et al (1995). The results of the present study also indicate that RBC GSHPx activity decreased from day one of age until 12 weeks of age, subsequently increasing until sexual maturity and then decreasing again to the age of peak egg production.…”

Section: Discussioncontrasting

confidence: 90%

“…Chicken embryo tissues are characterized by high concentrations of polyunsaturated fatty acids (Noble and Cocchi, 1990) and for that reason they are sensitive to lipid peroxidation (Gaál et al, 1995); protection against lipid peroxidation is, therefore, a crucial task for embryos. A genetic variation in GSHPx activity has been suspected previously in chickens (Cunningham et al, 1987;Shen et al, 1992;Shaaban et al, 2003Shaaban et al, , 2004.…”

Section: Introductionmentioning

confidence: 99%

“…Correlation between the activity of GSHPx and body weight was shown to be signifi cant, as well. Comparison among embryonic tissues showed that the highest GSHPx activity at all stages of development was in the liver, and increased throughout embryonic development, reaching its maximum at the time of hatching (Gaál et al, 1995). Several studies have suggested that activities of GSHPx in different tissues are affected by sex.…”

Section: Introductionmentioning

confidence: 99%

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Glutathione peroxidase activity in different breeds and sexes of chickens during embryonic development up to peak of egg production

Farahat¹,

Eissa²,

Balogh³

et al. 2008

J. Anim. Feed Sci.

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Glutathione peroxidase (GSHPx) activity was investigated in the liver, red blood cells (RBC) and blood plasma (BP) of different chicken genotypes. Signifi cant differences among genotypes and age groups were found in liver GSHPx activity during embryonic development and in day-old chickens. Breed, sex and age effects were found in RBC and BP from one day of age until peak egg production. A negative correlation was found between embryo liver GSHPx activity and egg weight (-0.24; P≤0.01), between RBC and BP GSHPx activity and body weight (-0.32 and -0.44; P≤0.01), and between liver and RBC GSHPx activity (-0.54; P≤0.01), while positive correlations were demonstrated between liver and BP (0.66; P≤0.01) and BP and RBC (0.32; P≤0.01) GSHPx activity. In conclusion, variation in GSHPx activities in different chicken breeds during development suggests that it is genetically regulated. This fi nding indicates that GSHPx activity may be useful in selection.

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Section: Discussioncontrasting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Glutathione peroxidase activity in different breeds and sexes of chickens during embryonic development up to peak of egg production

Farahat¹,

Eissa²,

Balogh³

et al. 2008

J. Anim. Feed Sci.

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show abstract

“…This indicates that antioxidant may play a vital role during embryonic stage to initial few days of chick's life. Vitamin E is transported from the yolk to the embryonic tissues during embryonic development (Gaál et al, 1995;Surai et al, 1996;Cherian and Sim, 2003). It prevents lipid peroxidation of PUFA within the cell, thus protecting the cell against the toxicity of free radicals (Khan, 2011).…”

Section: Vitamin E In Chicken Embryo Developmentmentioning

confidence: 99%

Role of Vitamin E in Counteracting Oxidative Stress in Poultry

Panda

Cherian

2014

J. Poult. Sci.

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Oxidative stress is defined as the imbalance between prooxidants and antioxidants (in favor of the pro-oxidants). Reactive oxygen species (ROS) are produced in the body continuously as a part of normal metabolism. Under normal physiological conditions a healthy balance exists between prooxidants and antioxidants. However, when the defense system gets disturbed due to fast growth, inadequate diet supply, disease, or other stressors, body is not able to synthesize the enzymes needed to destroy ROS or repair the damage. In the intensive system of poultry production birds are exposed to several stressors which may result in oxidative stress and lead to poor performance. Antioxidants in the animal body work together as the so called "antioxidant system" to prevent damaging effects of free radicals and toxic products of their metabolism. Vitamin E is considered as a very potent antioxidant in biological systems and found to be beneficial in counteracting the adverse effect of oxidative stress. The knowledge of antioxidant defense systems will serve as guiding principle for establishing most effective nutrition support to minimize oxidative stress. Such an approach will enhance bird health and welfare, product quality and will increase economic returns and the sustainability of poultry production. The current review describes the role of vitamin E as an antioxidant in alleviating oxidative stress in poultry.

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“…The GSH-Px family of enzymes is a crucial player in the antioxidant system, neutralizing potential threats to the integrity of cellular macromolecules by eliminating hydrogen peroxide and detoxifying lipid hydroperoxides (Brigelius-Flohé, 1999). The Se derived from hen is deposited in eggs and is distributed among the developing tissues during embryogenesis (Gaal et al, 1995;Surai, 2000;Paton et al, 2002). Consequently, the Se supplementation of the maternal diet has an effect on the GSH-Px activity in the egg yolk.…”

Section: Protein Oxidationmentioning

confidence: 99%