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Kinetics of hydrogen peroxide generated from live and dead ram spermatozoa and the effects of catalase and oxidase substrates addition
reactive oxygen species ram antioxidant
2016/2/23
The generation of hydrogen peroxide (H2O2) by ram spermatozoa (spz) was measured using a flurometric assay with 10-acetyl-3,7-dihydroxyphenoxazine agent as a probe for H2O2 detection. The kinetics of ...
Kinetics of hydrogen peroxide generated from live and dead ram spermatozoa and the effects of catalase and oxidase substrates addition
reactive oxygen species ram antioxidant
2016/1/29
The generation of hydrogen peroxide (H2O2) by ram spermatozoa (spz) was measured using a flurometric assay with 10-acetyl-3,7-dihydroxyphenoxazine agent as a probe for H2O2 detection. The kinetics of ...
Blood Superoxide Dismutase and Catalase Activities in Women Affected with Breast Cancer
Catalase ROS
2009/12/30
Experimental and epidemiological evidences implicate the involvement of oxygen derived radicals in the pathogenesis of cancer development. Oxygen derived radicals are able to cause damage to membranes...
Failure of heparin, superoxide dismutase, and catalase to protect against decompression sickness
Catron,PW Thomas,LB McDermott,JJ Holt,MA Harabin,AL Flynn,ET
2009/7/14
The effects of heparin (HEP), superoxide dismutase (SOD), and catalase (CAT) on the course of decompression sickness (DCS) were studied in anesthetized dogs (Canis familiaris). Animals were divided in...
Purification and Gene Cloning of Catalase from Staphylococcus warneri ISK-1
catalase Staphylococcus purification
2009/7/8
To investigate the possibility of applying staphylococcal catalase to eliminate H2O2 in lactic acid fermentation, an intracellular catalase from Staphylococcus warneri ISK-1 which exhibited high catal...
The Effects of Vitamin E on Catalase Activies in Various Rat Tissues
catalase Vitamin E kidney heart rats
2009/7/3
Vitamin E and other antioxidants prevent or minimize oxidative damage in biological systems. The level of antioxidant defense sufficient to protect the organism from high free radical concentrations i...
Age-Related Alterations in Superoxide Dismutase and Catalase Activities in Rat Brain
Aging SOD catalase cerebral cortex cerebellum brain rats
2009/7/2
Active oxygen species have been proposed to be involved in the aging process of the brain, therefore alterations in the activities of enzymes involved in the defense system against free radicals and o...
A Comparison of Erythrocyte Superoxide Dismutase and Catalase Activity in Patients With Hepatitis C Infection
Hepatitis C superoxide dismutase catalase interferon alpha
2009/6/26
Hepatitis C virus (HCV) infection remains important due to difficulties in treatment up to a chronic state. It is considered that free radicals, lipid peroxidation and antioxidant defense play a role ...
Production of Catalase-Peroxidase and Continuous Degradation of Hydrogen Peroxide by an Immobilised Alkalothermophilic Bacillus sp.
catalase-peroxidase Bacillus sp. bleaching
2009/3/19
Catalase-peroxidase (CP) production by a Bacillus sp. (Bacillus KF) newly isolated from a textile finishing effluent and by this strain immobilised on light expanded clay was studied. In cultivations ...
The Expression Level of a Specific Catalase Isozyme of Maize Mutants Alters Catalase and Superoxide Dismutase during Norflurazon-Induced Oxidative Stress in Scutella
catalase Zea mays norflurazon oxidative stress scutella, superoxide dismutase
2009/3/7
The effect of catalase (CAT) levels on antioxidant responses to norflurazon (NF)-induced photooxidative stress was examined in 5-day postimbibition (dpi) scutella of a standard maize (Zea mays) CA...
Effect of Norflurazon on Responses of Superoxide Dismutase and Catalase in a Standard Maize Inbred Line and Superoxide Dismutase Mutant
catalase maize (Zea mays) norflurazon oxidative stress superoxide dismutase
2009/3/7
We compared the responses of superoxide dismutase (SOD) and catalase (CAT) to a herbicide norflurazon (NF)-induced oxidative stress in leaves and mesocotyls of a standard maize (Zea mays) inbred l...
Morphologic changes induced by short-term ischemia in the rat testis are not affected by treatment with superoxide dismutase and catalase
short-term ischemia rat testis superoxide dismutase and catalase
2009/2/23
Short-term testicular ischemia was induced unilaterally by ligating the testicular artery for 60 or 100 minutes in adult rats. After 7 days, the rats were fixed by vascular perfusion. The effect of ...
Catalase and oviductal fluid reverse the decreased motility of bovine sperm in culture medium containing specific amino acids
Hydrogen peroxide oviduct secretions toxicity
2009/2/17
The motility and velocity of bovine spermatozoa incubated in TCM-199 are reduced in comparison with those incubated in a simpler media made for sperm, such as modified Tyrode (Sp-Talp). Moreover, ...
Catalase mRNA expression in the male rat reproductive tract
Catalase mRNA expression male rat
2009/2/16
Reactive oxygen species (ROS) have been shown to impair sperm function. The actions of ROS are reduced by antioxidant enzymes, including catalase. Although catalase-like activity has been demonstrated...
Developmental expression of glutathione peroxidase, catalase, and manganese superoxide dismutase mRNAs during spermatogenesis in the mouse
Antioxidant enzymes gene expression testis translational regulation
2009/2/16
We have examined in mouse testis the steady-state levels of mRNAs encoding glutathione peroxidase (GSHPx), catalase (CAT), and superoxide dismutase 2 (SOD-2), three enzymes essential for the antio...