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J Herbmed Pharmacol. 2022;11(2): 226-237.
doi: 10.34172/jhp.2022.27
  Abstract View: 1569
  PDF Download: 787

Original Article

The methanol leaf extract of Picralima nitida mitigated cisplatin-induced toxicities in rats through nuclear factor kappa beta, cardiac troponin, mineralocorticoid receptor, and Nrf2 signaling pathways

Adeolu Alex Adedapo 1* ORCID logo, Ademola Afeez Yusuf 1 ORCID logo, Olufunke Olubunmi Falayi 1 ORCID logo, Iyanuoluwa Omolola Ogunmiluyi 1 ORCID logo, Blessing Seun Ogunpolu 2 ORCID logo, Temidayo Olutayo Omobowale 2 ORCID logo, Ademola Adetokunbo Oyagbemi 3 ORCID logo, Olumuyiwa Abiola Adejumobi 2 ORCID logo, Oluwafemi Omoniyi Oguntibeju 4 ORCID logo, Momoh Audu Yakubu 5 ORCID logo, Fred Bayo Yakubu 6 ORCID logo

1 Department of Veterinary Pharmacology and Toxicology, University of Ibadan, Nigeria
2 Department of Veterinary Medicine, University of Ibadan, Nigeria
3 Department of Veterinary Physiology and Biochemistry, University of Ibadan, Nigeria
4 Department of Biomedical Sciences, Cape Peninsula University of Technology, Bellsville, South Africa
5 Department of Environmental and Interdisciplinary Sciences, Texas Southern University, Houston, TX 77074 USA
6 ederal College of Forestry, Jericho, Ibadan, Nigeria
*Corresponding Author: Email: aa.adedapo@ui.edu.ng

Abstract

Introduction: Cisplatin (CP)-induced toxicity involves oxidative stress and Picralima nitida is rich in natural antioxidants hence its methanol leaf extract was used to mitigate the toxic effect of CP.Methods: Forty rats divided into four groups of 10 rats per group were used as follows: group A (normal saline), group B (CP 10 mg/kg), group C [Methanol Leaf Extract of Picralima nitida (MLEPN), 100 mg/kg and CP 10 mg/kg], and group D (MLEPN 200 mg/kg and CP 10 mg/kg). All administrations were done by oral gavage with the volumes of the treatments administered determined by the average weight of the rats in each group except CP, which was given intraperitoneally. Administration of normal saline and MLEPN lasted for seven consecutive days after which a single dose of CP was given on day 8. All animals were sacrificed 72 hours after CP administration. On day 9, blood pressure measurement was taken, and changes in body weight were determined. On day 10, blood samples were taken for serum chemistry, and kidneys, liver, and heart were harvested from the animals for Serum assay, histopathology, and immunohistochemistry, respectively.Results: The extract improved weight changes caused by CP and reversed the toxic changes produced by CP on serum chemistry, oxidative stress, and histopathology. The extract caused a significant decrease in the levels of nuclear factor kappa beta, cardiac troponin, and mineralocorticoid receptors (MCRs). However, it increased the protein expression of Nrf2 compared to the toxicant group.Conclusion: The extract exhibited anti-inflammatory, antioxidant, and anti-renin properties.

Cisplatin (CP) toxicities involve oxidative stress and substances rich in anti-oxidants could mitigate this effect. Picralima nitida is rich in phenol and other phytochemical substances that could mitigate the effects of oxidative stress, especially the toxic effect of CP. Hence, the administration of this plant alongside CP therapy may go a long way in mitigating the side effects of CP administration.
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Submitted: 17 Aug 2021
Revision: 26 Oct 2021
Accepted: 26 Oct 2021
ePublished: 01 Apr 2022
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