Ginseng volatile oil prolongs the lifespan and healthspan of Caenorhabditis elegans

Abstract

Ginseng volatile oil (GVO) is one of the main components of ginseng and has antibacterial and anti-inflammatory properties. In this study, gas chromatography–mass spectrometry (GC–MS) was applied to characterize GVO chemical composition, and 73 volatile components were detected from GVO. Caenorhabditis elegans was used as animal model to further elucidate the antioxidant and anti-aging effects of GVO in vivo. The results suggested that GVO significantly prolonged the lifespan of C. elegans and promoted its health without damaging its reproductive capacity. In addition, GVO increased the antioxidant capacity and survival rate of nematodes after heat shock. Transcriptional sequencing showed that autophagy-related genes atg-4.2 , atg-7 , lgg-2 , and cyd-1 were up-regulated, and superoxide dismutase 1 ( sod-1 ) expression was increased after GVO pretreatment. Considering the role of autophagy and antioxidant in aging, the expression of autophagy substrate P62 protein in BC12921 strain was analyzed and found to decrease by more than 50.00% after treatment with GVO. In addition, the lifespan of SOD-1 mutant nematodes was not significantly different from that of the control group. SOD activity and autophagy were activated, which is a clear expression of hormesis. All these results suggest that GVO prolongs the lifespan and healthspan of C. elegans , and its biological functions may be related to hormesis. Supplementary Information The online version contains supplementary material available at 10.1007/s10522-022-09956-z.

Medicinal Plant-based Biologically Active Substances and Extracts Inhibit Intestinal Autofluorescence Accumulation in Caenorhabditis elegans

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