Journal
NATURAL PRODUCT RESEARCH
Volume 32, Issue 11, Pages 1329-1332Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2017.1342088
Keywords
Polysaccharides; Sipunculus nudus; lifespan; Drosophila melanogaster
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The water-soluble polysaccharides extracted from Sipunculus nudus (SNP) was investigated on the lifespan and immune damage repair of Drosophila melanogaster exposed to Cd (VI). SNP increased superoxyde dismutase (SOD), nitrogen monoxide (NO), glutathione peroxidase (GSH-Px) and total anti-oxidation competence (T-AOC), with decreased malondialdehyde (MDA) on D. melanogaster demonstrated that SNP could attenuateoxidative damage of D. melanogaster Exposed to Cd (VI). Real-time PCR and western blot analysis showed that SNP enhanced the gene expression of Diptericin, Drosomycin, Defensin, PGRP-LC and the protein level of Toll, p-JNK and Relish, that suggested the promoting effect of SNP on the immune damage repair of D. melanogaster exposed to Cd (VI). The increased level of Indy, Parkin and AMPK indicated the regulated effect of SNP on the longevity-related pathways through ageing-related moleculars of D. melanogaster exposed to Cd (VI). These results suggested that SNP could also improve the lifespan of D. melanogaster exposed to Cd (VI). [GRAPHICS]
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