Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats

Objectives: Airway remodeling in asthma involves chronic inflammation associated with structural changes, which result in severe airflow limitation and very few therapeutic options. Thus, the present study was designed to experimentally evaluate the ameliorative effects of Withania somnifera (WS) ro...

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Main Authors: Nafaa Hasan Ali, Sana Rehman, Maaz Naqvi, Kavita Gulati, Arunabha Ray
Format: Article
Language:English
Published: Korean Pharmacopuncture Institute 2023-06-01
Series:Journal of Pharmacopuncture
Subjects:
Online Access:http://www.journal-jop.org/journal/view.html?doi=10.3831/KPI.2023.26.2.158
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author Nafaa Hasan Ali
Sana Rehman
Maaz Naqvi
Kavita Gulati
Arunabha Ray
author_facet Nafaa Hasan Ali
Sana Rehman
Maaz Naqvi
Kavita Gulati
Arunabha Ray
author_sort Nafaa Hasan Ali
collection DOAJ
description Objectives: Airway remodeling in asthma involves chronic inflammation associated with structural changes, which result in severe airflow limitation and very few therapeutic options. Thus, the present study was designed to experimentally evaluate the ameliorative effects of Withania somnifera (WS) root extract against Ovalbumin (OVA)-induced airway remodeling in a rat model of asthma.Methods: Wistar rats were immunized (i.p) and challenged (aerosol) with ovalbumin (OVA), and the effects of WS extract were investigated on the development and progress of airway remodeling by assessing immunological, biochemical, and histological changes in these rats.Results: OVA-immunization and challenge in rats resulted in significant increases in the levels of IL-13, 8-OhdG, TGF-β, hydroxyproline, and periostin in bronchoalveolar lavage fluid (BALF) and serum/lung homogenate compared to normal control (saline only) rats, and these changes were attenuated after WS extract (200 and 400 mg/kg), as well as dexamethasone (DEX, 1 mg/kg) pretreatments. Further, WS extract attenuated histopathological changes and maintained lung integrity. In herb-drug interactions, sub-threshold doses of WS extract and DEX showed synergistic effects on all parameters studied as compared to either form of monotherapy.Conclusion: These results indicated that WS exerted significant protective effects against airway remodeling in the experimental model by modulating inflammatory and fibrotic cytokines, and could have the potential for developing a therapeutic alternative/adjunct for the treatment of airway remodeling of bronchial asthma.
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spelling doaj.art-493d0e1fd612427185c6de140a450bff2023-06-30T06:35:46ZengKorean Pharmacopuncture InstituteJournal of Pharmacopuncture2093-69662023-06-0126215816610.3831/KPI.2023.26.2.158KPI.2023.26.2.158Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in RatsNafaa Hasan Ali0Sana Rehman1Maaz Naqvi2Kavita Gulati3Arunabha Ray4Department of Pharmacology, Hamdard Institute of Medical Sciences and Research (HIMSR), Jamia Hamdard University, New Delhi, IndiaDepartment of Pharmacology, Hamdard Institute of Medical Sciences and Research (HIMSR), Jamia Hamdard University, New Delhi, IndiaDepartment of Pharmacology, Hamdard Institute of Medical Sciences and Research (HIMSR), Jamia Hamdard University, New Delhi, IndiaDepartment of Pharmacology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, IndiaDepartment of Pharmacology, Hamdard Institute of Medical Sciences and Research (HIMSR), Jamia Hamdard University, New Delhi, IndiaObjectives: Airway remodeling in asthma involves chronic inflammation associated with structural changes, which result in severe airflow limitation and very few therapeutic options. Thus, the present study was designed to experimentally evaluate the ameliorative effects of Withania somnifera (WS) root extract against Ovalbumin (OVA)-induced airway remodeling in a rat model of asthma.Methods: Wistar rats were immunized (i.p) and challenged (aerosol) with ovalbumin (OVA), and the effects of WS extract were investigated on the development and progress of airway remodeling by assessing immunological, biochemical, and histological changes in these rats.Results: OVA-immunization and challenge in rats resulted in significant increases in the levels of IL-13, 8-OhdG, TGF-β, hydroxyproline, and periostin in bronchoalveolar lavage fluid (BALF) and serum/lung homogenate compared to normal control (saline only) rats, and these changes were attenuated after WS extract (200 and 400 mg/kg), as well as dexamethasone (DEX, 1 mg/kg) pretreatments. Further, WS extract attenuated histopathological changes and maintained lung integrity. In herb-drug interactions, sub-threshold doses of WS extract and DEX showed synergistic effects on all parameters studied as compared to either form of monotherapy.Conclusion: These results indicated that WS exerted significant protective effects against airway remodeling in the experimental model by modulating inflammatory and fibrotic cytokines, and could have the potential for developing a therapeutic alternative/adjunct for the treatment of airway remodeling of bronchial asthma.http://www.journal-jop.org/journal/view.html?doi=10.3831/KPI.2023.26.2.158bronchial asthmaairway remodelingwithania somniferacytokinesoxidative stress
spellingShingle Nafaa Hasan Ali
Sana Rehman
Maaz Naqvi
Kavita Gulati
Arunabha Ray
Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
Journal of Pharmacopuncture
bronchial asthma
airway remodeling
withania somnifera
cytokines
oxidative stress
title Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
title_full Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
title_fullStr Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
title_full_unstemmed Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
title_short Modulation of Immunological, Biochemical, and Histopathological Changes of Airway Remodeling by Withania somnifera in an Experimental Model of Allergic Asthma in Rats
title_sort modulation of immunological biochemical and histopathological changes of airway remodeling by withania somnifera in an experimental model of allergic asthma in rats
topic bronchial asthma
airway remodeling
withania somnifera
cytokines
oxidative stress
url http://www.journal-jop.org/journal/view.html?doi=10.3831/KPI.2023.26.2.158
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