Age-related changes in catalase and peroxidase activities in the excised leaves of Eleusine coracana Gaertn. cv PR 202 during senescence

Kumar, K. Vinod; Khan, P. A.

doi:10.1016/0531-5565(83)90019-0

Cited by 77 publications

(67 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the present observations, it can be inferred that catalase and peroxidase are inversely related as also has been reported by Kumar and Khan [9]. Females of control groups exhib ited higher values of peroxidase and catalase, which is consistent with their longer life span.…”

Section: Discussionsupporting

confidence: 77%

Effect of Sodium Selenite on Antioxidative Enzymes of Banana Fruitfly

Kaur

Wadhwa²,

Sharma³

1989

Gerontology

View full text Add to dashboard Cite

The median and maximum life spans of Zaprionus paravittiger are 43 and 79 days, respectively, for males and 52 and 91 days for females at 24 ± 2°C. Sodium selenite (SS), an antioxidant, feeding prolongs the median as well as maximum life span of both the sexes. Antioxidative enzymes, catalase and peroxidase showed greater activity during the developmental stages. Females, at most of the age intervals, exhibited greater enzymatic activities as compared to their age-matched males. Both the sexes showed a statistically significant increase in the baseline activity of these enzymes as consequent upon SS feeding. It is suggested that SS acts by strengthening the antioxidative enzymes, namely catalase and peroxidase.

show abstract

Section: Discussionsupporting

confidence: 77%

Effect of Sodium Selenite on Antioxidative Enzymes of Banana Fruitfly

Kaur

Wadhwa²,

Sharma³

1989

Gerontology

View full text Add to dashboard Cite

show abstract

“…The method of Kumar and Khan [25] was used to estimate catalase activity. The homogenates (0.2% w/ v) of the flies were prepared in phosphate buffer (50 m.V/, pH 7.0).…”

Section: C'alalase Assaymentioning

confidence: 99%

Effect of Vitamin E on Life Span, Malondialdehyde Content and Antioxidant Enzymes in Aging Zaprionus paravittiger

1996

View full text Add to dashboard Cite

Zaprionus paravittiger fed with vitamin E supplemented diet (1, 5 and 10 μg/ml) showed an increase in median and maximum life spans. Further increase in concentration accelerated the mortality rate. Females exhibited longer life span as compared to males. Malondialdehyde (MDA) content and antioxidant enzymes (catalase and peroxidase) were measured in control and optimum concentration of vitamin E (5 μg/ml)-fed flies at various age intervals. MDA content showed an increase with age in control and vitamin E-fed group whereas catalase and proxidase activities showed a decrease with age. The females exhibited lower MDA content and higher activities of catalase and peroxidase as compared to males in control and vitamin E group. Vitamin E feeding caused a significant decrease in MDA and increase in catalase and peroxidase activities. These findings suggest that vitamin E has dose-dependent and sex-specific influence on longevity of Z. paravittiger and support the view that longevity and activity of antioxidant enzymes are positively linked.

show abstract

“…Quantitative estimations of various biochemical parameters were done on whole-body homogenates of aging insects fed on con trol and methionine (100 mM) diet. Age-related changes in catalase and peroxidase activities were de termined using the method developed by Kar and Mishra [ 15] as modified by Kumar and Khan [16]. The procedure used has been reported in detail previously [17], MDA, quantitative product of lipid peroxidation, and inorganic peroxide levels were determined follow ing the methods of Placer et al [ 18] and Bernt and Bergmeyer [19], respectively.…”

Section: Introductionmentioning

confidence: 99%

Methionine-lnduced Alterations in the Life Span, Antioxidant Enzymes, and Peroxide Levels in Aging Zaprionus paravittiger (Diptera)

Sharma

Kakkar

1995

Gerontology

View full text Add to dashboard Cite

The median and maximum life spans of both sexes of Zaprionus paravittiger increased with methionine (100 mM) feeding. It was accompanied by higher catalase and peroxidase enzyme activities. The lipid peroxide level as measured by malondialdehyde content and the inorganic peroxides showed an increase with age and a decrease in methionine-fed insects. The reduction was, however, more pronounced in females than in males. The findings indicate that a life-prolonging effect of methionine on Z. paravittiger may be by virtue of its free radical scavenging effect.

show abstract

Age-related changes in catalase and peroxidase activities in the excised leaves of Eleusine coracana Gaertn. cv PR 202 during senescence

Cited by 77 publications

References 12 publications

Effect of Sodium Selenite on Antioxidative Enzymes of Banana Fruitfly

Effect of Sodium Selenite on Antioxidative Enzymes of Banana Fruitfly

Effect of Vitamin E on Life Span, Malondialdehyde Content and Antioxidant Enzymes in Aging <i>Zaprionus paravittige</i><i>r</i>

Methionine-lnduced Alterations in the Life Span, Antioxidant Enzymes, and Peroxide Levels in Aging <i>Zaprionus paravittiger</i> (Diptera)

Contact Info

Product

Resources

About