Evaluation of developmental toxicity and genotoxicity of aqueous seed extract of Croton tiglium L. using zebrafish

Yumnamcha, T and Devi, MD and Roy, D and Nongthomba, U (2022) Evaluation of developmental toxicity and genotoxicity of aqueous seed extract of Croton tiglium L. using zebrafish. In: Drug and Chemical Toxicology, 45 (1). pp. 398-406.

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Abstract

Croton tiglium L. has been used in Ayurvedic and Chinese herbal medicinal formulations from ancient times. Although its seeds are widely prescribed as traditional medicine, there is a dearth of information, regarding its toxic effects, and the mechanisms underlying its toxicity. This study aims to investigate the developmental toxicity and genotoxicity of the aqueous seed extract of C. tiglium L. (AECT) in zebrafish. We have examined the effects of AECT on the early embryonic development of zebrafish. Zebrafish embryos, treated with different concentrations of the AECT, suffered embryonic lethality and displayed various developmental defects. The 96 h-LC50 of AECT was found to be 162.78 µg/ml. Interestingly, the developmental abnormalities observed, such as pericardial edema (PE), yolk sac edema (YSE), spinal curvature (SC), and delayed hatching, varied in severity, in a dose-dependent manner. Zebrafish embryos, treated with different concentrations of AECT, exhibited exaggerated cell death in the anatomical regions of brain, heart, and trunk. Our data suggest that the phenomenon of apoptosis is probably responsible for both embryonic lethality and developmental toxicity in zebrafish embryos. Furthermore, the genotoxic potential of the AECT, in vivo, was evaluated using micronucleus assay and comet assay, on the peripheral blood of zebrafish. The results suggest that AECT has the potential to cause genotoxicity in the peripheral blood of zebrafish. © 2020 Informa UK Limited, trading as Taylor & Francis Group.

Item Type:	Journal Article
Publication:	Drug and Chemical Toxicology
Publisher:	Taylor and Francis Ltd.
Additional Information:	The copyright for this article belongs to the Taylor and Francis Ltd.
Keywords:	Chinese drug; Croton tiglium extract; plant extract; unclassified drug; plant extract, animal cell; animal experiment; animal model; animal tissue; apoptosis; Article; brain; cell death; controlled study; Croton tiglium; developmental toxicity; edema; embryo; genotoxicity; heart; lethality; nonhuman; pericardial edema; plant seed; spine disease; trunk; yolk sac edema; zebra fish; animal; Croton; DNA damage; nonmammalian embryo, Animals; Croton; DNA Damage; Embryo, Nonmammalian; Plant Extracts; Zebrafish
Department/Centre:	Division of Biological Sciences > Molecular Reproduction, Development & Genetics
Date Deposited:	06 Oct 2022 06:17
Last Modified:	06 Oct 2022 06:17
URI:	https://eprints.iisc.ac.in/id/eprint/77125

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