Tualang honey protects the rat midbrain and lung against repeated paraquat exposure

Suk Peng Tang, Sirajudeen Kuttulebbai Nainamohamed Salam, Hasnan Jaafar, Siew Hua Gan, Mustapha Muzaimi, Siti Amrah Sulaiman

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15 Citations (Scopus)

Abstract

Paraquat (PQ) is a dopaminergic neurotoxin and a well-known pneumotoxicant that exerts its toxic effect via oxidative stress-mediated cellular injuries. This study investigated the protective effects of Tualang honey against PQ-induced toxicity in the midbrain and lungs of rats. The rats were orally treated with distilled water (2 mL/kg/day), Tualang honey (1.0 g/kg/day), or ubiquinol (0.2 g/kg/day) throughout the experimental period. Two weeks after the respective treatments, the rats were injected intraperitoneally with saline (1 mL/kg/week) or PQ (10 mg/kg/week) once per week for four consecutive weeks. After four weekly exposures to PQ, the glutathione peroxidase activity and the number of tyrosine-hydroxylase immunopositive neurons in the midbrain were significantly decreased in animals from group PQ (p<0.05). The lungs of animals from group PQ showed significantly decreased activity of superoxide dismutase and glutathione-S-transferase. Treatment with Tualang honey ameliorated the toxic effects observed in the midbrain and lungs. The beneficial effects of Tualang honey were comparable to those of ubiquinol, which was used as a positive control. These findings suggest that treatment with Tualang honey may protect against PQ-induced toxicity in the rat midbrain and lung.

Original languageEnglish
Article number4605782
Number of pages12
JournalOxidative Medicine and Cellular Longevity
Volume2017
DOIs
Publication statusPublished - 3 Jan 2017
Externally publishedYes

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