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01.12.2019 | Research article | Ausgabe 1/2019 Open Access

BMC Complementary Medicine and Therapies 1/2019

Leaf extract of Caesalpinia mimosoides enhances oxidative stress resistance and prolongs lifespan in Caenorhabditis elegans

Zeitschrift:
BMC Complementary Medicine and Therapies > Ausgabe 1/2019
Autoren:
Panthakarn Rangsinth, Anchalee Prasansuklab, Chatrawee Duangjan, Xiaojie Gu, Krai Meemon, Michael Wink, Tewin Tencomnao
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12906-019-2578-5) contains supplementary material, which is available to authorized users.

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Abstract

Background

Caesalpinia mimosoides, a vegetable consumed in Thailand, has been reported to exhibit in vitro antioxidant properties. The in vivo antioxidant and anti-aging activities have not been investigated. The aim of this research was to study the antioxidant activity of C. mimosoides extracts in Caenorhabditis elegans, a widely used model organism in this context.

Methods

C. elegans were treated with C. mimosoides extracts in a various concentrations. To investigate the protective effects of the extract against oxidative stress, wild-type N2 were used to determine survival rate under oxidative stress and intracellular ROS. To study underlying mechanisms, the mutant strains with GFP reporter gene including TJ356, CF1553, EU1 and LD4 were used to study DAF-16, SOD-3, SKN-1 and GST-4 gene, respectively. Lifespan and aging pigment of the worms were also investigated.

Results

A leaf extract of C. mimosoides improved resistance to oxidative stress and reduced intracellular ROS accumulation in nematodes. The antioxidant effects were mediated through the DAF-16/FOXO pathway and SOD-3 expression, whereas the expression of SKN-1 and GST-4 were not altered. The extract also prolonged lifespan and decreased aging pigments, while the body length and brood size of the worms were not affected by the extract, indicating low toxicity and excluding dietary restriction.

Conclusions

The results of this study establish the antioxidant activity of C. mimosoides extract in vivo and suggest its potential as a dietary supplement and alternative medicine to defend against oxidative stress and aging, which should be investigated in intervention studies.
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