Abstract
The Eclipta alba plant is considered hepatoprotective, owing to its phytoconstituents wedelolactone. In the current study, effect of elevated ultraviolet-B (eUV-B) radiation was investigated on biochemical, phytochemical, and antioxidative enzymatic activities of E. alba (Bhringraj) plant. The UV-B exposure resulted in an increase in oxidative stress, which has caused an imbalance in phytochemical, biochemical constituents, and induced antioxidative enzymatic activities. It was observed that the UV-B exposure promoted wedelolactone yield by 23.64%. Further, the leaf extract of UV-B-exposed plants was used for the synthesis of carbon quantum dots (CQDs) using low cost, one-step hydrothermal technique and its biocompatibility was studied using in vitro MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay on HepG2 liver cell line. It revealed no toxicity in any treatment groups in comparison to the control. Both CQDs and leaf extract were orally administered to the golden hamster suffering from alcohol-induced liver cirrhosis. In the morphometric study, it was clearly observed that a combination of UV-B-exposed leaf extract and synthesized CQDs delivered the best result with maximum recovery of liver tissues. The present study reveals the positive impact of UV-B exposure on the medicinally important plant, increased yield of wedelolactone, and its enhanced hepatoprotective efficacy for the treatment of damaged liver tissues.
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The data that support the findings of this study are available from the corresponding author, upon reasonable request.
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Acknowledgements
The authors would like to thank the Department of Science and Technology (DST-SERB), India- CRG/2019/000903 (Core Research Grant) & SB/S2/RJN-140/2014 (Ramanujan Fellowship Award). The authors are also very grateful to the Heads, Department of Botany, Zoology and IIT-Physics for providing necessary laboratory facilities during the experiments. Advanced Instrumentation Research Facility is acknowledged for providing GC-MS facility. Shashi Bhushan Agrawal is thankful to CSIR, New Delhi for providing Emeritus Scientist fellowship. Kshama Rai is thankful to the Coordinator, CAS in Botany, FIST (DST) for providing financial assistance, Institute of Life Sciences (BHU), Varanasi are also acknowledged for providing confocal microscopy facility and CSIR, New Delhi, for the financial support in the form of a research project (CSIR\P-25\365).
Funding
This work was supported by the Department of Science and Technology (DST-SERB), India- CRG/2019/000903 (Core Research Grant) & SB/S2/RJN-140/2014 (Ramanujan Fellowship Award) awarded to A.S.P.
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Rai, K., Yadav, K., Das, M. et al. Effect of carbon quantum dots derived from extracts of UV-B-exposed Eclipta alba on alcohol-induced liver cirrhosis in Golden Hamster. Photochem Photobiol Sci 22, 1543–1559 (2023). https://doi.org/10.1007/s43630-023-00396-3
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DOI: https://doi.org/10.1007/s43630-023-00396-3