Planta Med 2011; 77(2): 122-127
DOI: 10.1055/s-0030-1250204
Biological and Pharmacological Activity
Original Papers
© Georg Thieme Verlag KG Stuttgart · New York

Procyanidins from Apples (Malus pumila Mill.) Extend the Lifespan of Caenorhabditis elegans

Tadahiro Sunagawa1 , Takahiko Shimizu2 , Tomomasa Kanda1 , Motoyuki Tagashira1 , Manabu Sami1 , Takuji Shirasawa2 , 3
  • 1Research Laboratories for Fundamental Technology of Food, Asahi Breweries, Ltd., Ibaraki, Japan
  • 2Molecular Gerontology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
  • 3Department of Ageing Control Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
Weitere Informationen

Publikationsverlauf

received March 2, 2010 revised July 5, 2010

accepted July 6, 2010

Publikationsdatum:
17. August 2010 (online)

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Abstract

Apple polyphenols (AP) mainly consist of procyanidins (PC), which are composed of (−)-epicatechins and (+)-catechins. In order to investigate the antiageing effects of PC, we measured the lifespan of Caenorhabditis elegans worms treated with PC. Treatment with 65 µg/mL PC extended the mean lifespan of wild-type N2 and fem-1 worms by 12.1 % and 8.4 %, respectively, i.e., to a similar extent as resveratrol. In addition, treatment with 100 µg/mL AP also significantly prolonged the mean lifespan of the same worms by 12.0 % and 5.3 %, respectively, i.e., to a similar extent as PC. In contrast, treatment with (−)-epicatechin did not extend the lifespan of the worms. PC did not modify the growth, food intake, or fecundity of C. elegans. Treatment with PC did not extend the lifespan of mev-1 worms, which show excessive oxidative stress, indicating that PC had no antioxidant ability in the mev-1 mutant. Moreover, treatment with PC had no effect on the longevity of sir-2.1 worms, which lack the activity of SIR-2, a member of the sirtuin family of NAD+-dependent protein deacetylases. These results indicated that PC has sir-2.1-dependent antiageing effects on C. elegans.

References

Prof. Dr. T. Shirasawa

Molecular Gerontology
Tokyo Metropolitan Institute of Gerontology
Department of Ageing Control Medicine
Juntendo University Graduate School of Medicine

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Japan

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