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Berberine Attenuated Aging-Accelerating Effect of High Temperature in Drosophila Model

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DOI: 10.4236/ajps.2014.53037    2,625 Downloads   4,006 Views   Citations

ABSTRACT

We have observed that berberine prolonged life span and improved viability of pupae and climbing activity of imagoes of wild-type Drosophila melanogaster maintained at 23°C. As a continuation of our studies of berberine effect on life span, we were interested to evaluate the effect of berberine of life span in flies maintained at a higher temperature (28°C) known to accelerate aging in wild type flies. Considering that genetically or pharmacologically induced deficiency of TRP conversion into KYN prolonged life span in a Drosophila model, we compared the effects of berberine, a powerful inhibitor of kynurenine (KYN) formation from tryptophan (TRP), on life span in wild type and in Drosophila melanogaster mutants (vermilion) with deficient TRP-KYN metabolism maintained at 23°C and 28°C. High (28°C) ambient temperature decreased life span in both wild type and vermilion flies. Aging accelerating effect of high temperature was more pronounced in Oregon than in vermilion flies (-60% vs. -40% decrease of mean life span, resp). Berberine attenuated the aging-accelerating effect of high temperature. Effect of berberine was more pronounced in Oregon (+46%) than in vermilion (+22%) flies. The obtained data suggested the possible involvement of TRP-KYN metabolism in the aging-acceleration effect of the high temperature and in protective effect of berberine.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

V. Navrotskaya, G. Oxenkrug, L. Vorobyova and P. Summergrad, "Berberine Attenuated Aging-Accelerating Effect of High Temperature in Drosophila Model," American Journal of Plant Sciences, Vol. 5 No. 3, 2014, pp. 275-278. doi: 10.4236/ajps.2014.53037.

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