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Abstract Title:

Mangiferin alleviates arsenic induced oxidative lung injury via upregulation of the Nrf2-HO1 axis.

Abstract Source:

Food Chem Toxicol. 2019 Feb 12 ;126:41-55. Epub 2019 Feb 12. PMID: 30769048

Abstract Author(s):

Sushweta Mahalanobish, Sukanya Saha, Sayanta Dutta, Parames C Sil

Article Affiliation:

Sushweta Mahalanobish

Abstract:

Arsenic contaminated drinking water consumption is a serious health issue around the world. Chronic inorganic arsenic exposure has been associated with respiratory dysfunctions. It exerts various detrimental effects, disrupting normal cellular homeostasis and turning on severe pulmonary complications. This study elucidated the role of mangiferin, a natural xanthone, against arsenic induced lung toxicity. Chronic exposure of sodium arsenite (NaAsO) at 10 mg/kg bw for 3 months abruptly increased the LDH release in broncho-alveolar lavage fluid, generated reactive oxygen species (ROS), impaired the antioxidant defense and distorted the alveoli architecture. It caused significant inflammatory outburst and promoted the apoptotic mode of cell death via upregulating the expressions of various proapoptotic molecules related to mitochondrial, extra-mitochondrial and ER stress mediated apoptotic pathway. Activation of inflammatory cascade led to disruption of alveolar capillary barrier and impaired Na/K-ATPase function that led to detaining of alveolar fluid clearance activity. Mangiferin due to its anti-inflammatory activity suppressed this inflammation and reduced inflammatory cell infiltration in lung tissue. It significantly restored the antioxidant balance and inhibited apoptosis in lung via upregulating Nrf2-HO1 axis.

Study Type : Animal Study

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Sayer Ji
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