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Journal of Basic and Clinical Physiology and Pharmacology

Editor-in-Chief: Horowitz, Michal

Editorial Board: Das, Kusal K. / Epstein, Yoram / S. Gershon MD, Elliot / Haim, Abraham / Kodesh , Einat / Kohen, Ron / Lichtstein, David / Maloyan, Alina / Mechoulam, Raphael / Roth, Joachim / Schneider, Suzanne / Shohami, Esther / Sohmer, Haim / Yoshikawa, Toshikazu

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Volume 29, Issue 2

Issues

Amla (Emblica officinalis) improves hepatic and renal oxidative stress and the inflammatory response in hypothyroid female wistar rats fed with a high-fat diet

P. Rajaa Muthu
  • Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Zachariah Bobby
  • Corresponding author
  • Professor and Head of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605 006, India, Phone: +91-413-2273078/+91 94436 02996, Fax: 0413-2272067/66
  • Email
  • Other articles by this author:
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/ P. Sankar / V. Vickneshwaran
  • Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Sajini Elizabeth Jacob
  • Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-12-21 | DOI: https://doi.org/10.1515/jbcpp-2017-0116

Abstract

Background:

We investigated the protective effects of amla (Emblica officinalis) on the pathogenesis of oxidative stress (OS) and inflammatory response in hypothyroid rats fed with a high-fat diet (HFD) as an experimental model of hypothyroidism (HT) with obesity.

Methods:

A total of 80 female wistar rats (5-months-old) were divided into eight different groups. Propylthiouracil (PTU) and HFD were used to induce the experimental HT and obesity, respectively. The euthyroid and hypothyroid rats were fed either normal chow or HFD with and without amla extract (AE, 100 mg/kg bw/day) for 6 weeks. The blood and tissues, liver and kidney OS and inflammatory parameters were studied using appropriate biochemical and molecular techniques.

Results:

PTU and HFD per se caused OS and inflammatory response as evidenced by increased plasma MDA, TNF-α, CRP and GPx in association with decreased levels of TAS and reduced glutathione (GSH). The proteomic analysis revealed that the expressions of pERK, pP38, TNF-α, IL6, COX2 and NOX-4 were up-regulated in the liver and kidney of these rats. In addition, all these metabolic derangements were further augmented when HT was followed by the addition of HFD. This suggested that there was a synergism between HT and the intake of HFD on the development of OS and inflammatory response.

Conclusions:

The treatment with amla fruit extract significantly restored the redox imbalance and inflammatory signaling and ameliorated OS and inflammatory response, suggesting the use of this natural compound as an alternative remedy or adjuvant for the management of metabolic complications concomitant with HT.

Keywords: Emblica officinalis; hypothyroidism; high fat diet; inflammation; oxidative stress

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About the article

Corresponding author: Dr. Zachariah Bobby, PhD, Professor and Head of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605 006, India, Phone: +91-413-2273078/+91 94436 02996, Fax: 0413-2272067/66


Received: 2017-07-27

Accepted: 2017-11-05

Published Online: 2017-12-21

Published in Print: 2018-03-28


Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved its submission.

Research funding: None declared.

Employment or leadership: None declared.

Honorarium: None declared.

Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.


Citation Information: Journal of Basic and Clinical Physiology and Pharmacology, Volume 29, Issue 2, Pages 175–184, ISSN (Online) 2191-0286, ISSN (Print) 0792-6855, DOI: https://doi.org/10.1515/jbcpp-2017-0116.

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