J Gerontol A Biol Sci Med Sci
November 2017
Species from lower invertebrates to a spectrum of mammals show antiaging health benefits of phytochemical(s). Here, we explored the pro-longevity effects of a natural triterpenoid, ursolic acid (3β-hydroxy-urs-12-en-28-oic acid; UA) in Caenorhabditis elegans with maximal life span being evident at 25 µM UA. Similar to eat-2 mutants, UA uptake by worm results in reduced fat storage and attenuation of reactive oxygen species (ROS), independent of superoxide dismutase(s) activation.
View Article and Find Full Text PDFDespite their well reported potent risk towards human health and environment Zinc oxide nanoparticles (ZnONPs) find an extensive commercial usage due to their antimicrobial properties. Here, we evaluated the efficacy of a natural triterpene ursolic acid (3β-hydroxy-urs-12-en-28-oic acid; UA) for overcoming the cytotoxic challenges of ZnONPs employing Ceanorhabditis elegans. The 24h LC of Zn-ONPs (<50nm TEM) was deduced as 4.
View Article and Find Full Text PDFDespite the vast exploration of rhizospheric microbial wealth for crop yield enhancement, knowledge about the efficacy of microbial agents as biocontrol weapons against root-knot disease is scarce, especially in medicinal plants, viz., Bacopa monnieri. In the present investigation, rhizospheric microbes, viz.
View Article and Find Full Text PDFBeta-caryophyllene (BCP) is a natural bicyclic sesquiterpene and is a FDA approved food additive, found as an active ingredient in essential oils of numerous edible plants. It possesses a wide range of biological activities including anti-oxidant, anti-inflammatory, anti-cancerous and local anesthetic actions. We used the well established Caenorhabditis elegans model system to elucidate the stress modulatory and lifespan prolonging action of BCP.
View Article and Find Full Text PDFAn endophytic fungus was isolated from the rhizomes of Curcuma amada (Zingiberaceae), which was identified as Fusarium oxysporum on the basis of its morphological and molecular characters. Chromatographic separation and spectroscopic analysis of the fungal metabolite (chloroform extract) led to the identification of one pure compound having molecular formula C5H12O2, i.e.
View Article and Find Full Text PDFJ Expo Sci Environ Epidemiol
October 2014
The interaction of heavy metals such as hexavalent chromium, Cr (VI) with the environment drastically influences living organisms leading to an ecological imbalance. Caenorhabditis elegans, a saprophytic nematode having 60-80% homology with human genes offers a distinct advantage to be used as a biosensor for the appraisal of heavy metal-induced environmental toxicity and risk monitoring. The present study examines the toxicity effects of K2Cr2O7 as Cr (VI) on stress-related gene expression and morphometric parameters of C.
View Article and Find Full Text PDFFree Radic Biol Med
November 2012
In modern times, there has been a major increase in the use of plants or herbal constituents for the prevention of age-related disorders. 4-Hydroxy-E-globularinin (4-HEG) is an iridoid and a major component of Premna integrifolia. This investigation represents a breakthrough in geriatrics by showing the longevity-promoting activity of 4-HEG in the animal model Caenorhabditis elegans.
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