alexa Effect of vitamin E on lifespan and reproduction in Caenorhabditis elegans.
Biochemistry

Biochemistry

Biochemistry & Analytical Biochemistry

Author(s): Harrington LA, Harley CB

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Abstract Vitamin E extends the lifespan of many animals, including the nematode Caenorhabditis elegans. Our results confirm previous studies that 200 micrograms/ml vitamin E significantly prolonged C. elegans survival (17-23\%, P less than 0.05) when added from hatching to day 3, while continuous exposure, either at hatching or from 4 days prior to hatching, had little additional effect. Treatment with 100 or 400 micrograms/ml vitamin E, or with other antioxidants (80 micrograms/ml vitamin C, either alone or in combination with vitamin E, or 120 micrograms/ml N,N'-diphenyl-1,4-diphenylenediamine (DPPD] did not significantly affect lifespan. All treatments with 200 micrograms/ml vitamin E moderately reduced fecundity (total progeny) and increased the mean day of reproduction. At 400 micrograms/ml, vitamin E had severe effects, while DPPD, vitamin C, and 100 micrograms/ml vitamin E had slight effects on both these parameters of reproduction. These data suggest that vitamin E increases lifespan in C. elegans in part by slowing development in the same manner that metabolic-depressant or mildly cytotoxic drugs increase lifespan, decrease fecundity, and delay the timing of reproduction.
This article was published in Mech Ageing Dev and referenced in Biochemistry & Analytical Biochemistry

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