Amr A Fouad1, Waleed H Albuali, Iyad Jresat. 1. Department of Biomedical Sciences, Pharmacology Division, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia.
Abstract
BACKGROUND/AIMS: Lipopolysaccharide (LPS) induces acute lung injury (ALI) through oxidative stress and inflammation. Naringenin exerts antioxidant and anti-inflammatory effects. The possible protective effect of naringenin was investigated against ALI induced by LPS in rats. METHODS: Rats received a single injection of LPS (5 mg/kg, i.v.). Naringenin was given for 4 consecutive days, at 2 doses (50 and 100 mg/kg/day, p.o.), starting 3 days before LPS administration. RESULTS: LPS significantly increased wet/dry lung weight ratio, malondialdehyde, nitric oxide (NO), interleukin-6, and myeloperoxidase activity in the lung tissues. Naringenin, particularly the higher dose, significantly ameliorated the LPS-induced changes in the measured parameters. Also, naringenin markedly reduced the histopathological lung tissue injury that resulted from LPS. Naringenin significantly decreased the LPS-induced expression of nuclear factor-x03BA;B, inducible NO synthase, tumor necrosis factor-α, caspase-3, and significantly increased heat shock protein 70 expression in the lungs. CONCLUSION: Naringenin significantly protected against LPS-induced ALI in rats through its anti-inflammatory, antioxidant, antinitrosative, and antiapoptotic effects.
BACKGROUND/AIMS: Lipopolysaccharide (LPS) induces acute lung injury (ALI) through oxidative stress and inflammation. Naringenin exerts antioxidant and anti-inflammatory effects. The possible protective effect of naringenin was investigated against ALI induced by LPS in rats. METHODS:Rats received a single injection of LPS (5 mg/kg, i.v.). Naringenin was given for 4 consecutive days, at 2 doses (50 and 100 mg/kg/day, p.o.), starting 3 days before LPS administration. RESULTS:LPS significantly increased wet/dry lung weight ratio, malondialdehyde, nitric oxide (NO), interleukin-6, and myeloperoxidase activity in the lung tissues. Naringenin, particularly the higher dose, significantly ameliorated the LPS-induced changes in the measured parameters. Also, naringenin markedly reduced the histopathological lung tissue injury that resulted from LPS. Naringenin significantly decreased the LPS-induced expression of nuclear factor-x03BA;B, inducible NO synthase, tumor necrosis factor-α, caspase-3, and significantly increased heat shock protein 70 expression in the lungs. CONCLUSION:Naringenin significantly protected against LPS-induced ALI in rats through its anti-inflammatory, antioxidant, antinitrosative, and antiapoptotic effects.
Authors: Moza Mohamed Alzaabi; Rania Hamdy; Naglaa S Ashmawy; Alshaimaa M Hamoda; Fatemah Alkhayat; Neda Naser Khademi; Sara Mahmoud Abo Al Joud; Ali A El-Keblawy; Sameh S M Soliman Journal: Phytochem Rev Date: 2021-05-22 Impact factor: 7.741