ArticleMolecular biology reports2022
Analgesic effects of Terminalia chebula extract are mediated by the suppression of the protein expression of nerve growth factor and nuclear factor-κB in the brain and oxidative markers following neuropathic pain in rats.
Article in Molecular biology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 8 citations in OpenAlex.
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7 authors at 1 institution in 1 country.
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Abstract
backgroundDue to the complications related to the use of the current pharmacological approach for the alleviation of neuropathic pain, searching for effective compound with fewer complications is a requirement of the present era. It is well known that the pathophysiological mechanism of neuropathic pain is related to excessive inflammation in the nervous system. Hence, the present study focuses on whether the potential analgesic effects of Terminalia chebula (TC) extract are mediated by the changes in the protein expression of nerve growth factor (NGF) and nuclear factor-kappa B (NF-κB) in the brain in a rat model of sciatic nerve chronic constriction injury (CCI). METHOD AND
resultsNeuropathic pain was induced by the left sciatic nerve CCI. Male Wistar rats were assigned to three groups: sham, CCI, and CCI + TC (40 mg/kg). Animals received either normal saline (1 mL) or the aqueous-alcoholic extract of TC (40 mg/kg) for 30 days via gavage needles once a day. Cold allodynia and anxiety-like behaviors were examined one day before CCI surgery (day - 1), as well as days 2, 7, 14, and 30 following CCI. We also assessed the effects of the TC extract oxidative stress markers on day 30 following CCI. Moreover, a western blot analysis was performed on day 30 following CCI to evaluate the effects of the TC extract on the protein expression of NGF and NF-κB in the brain. Oral gavage of the TC extract significantly decreased cold allodynia on days 2 and 14 following CCI. Additionally, the CCI model of chronic pain significantly increased the protein expression of NGF and NF-κB in the brain on day 30 following CCI. Furthermore, the TC extract significantly decreased the protein expression of NGF and NF-κB in the brain. The TC extract also significantly increased the brain glutathione (GSH) content and decreased the malondialdehyde (MDA) content.
conclusionIt is suggested that the analgesic effects of the TC extract are mediated by the suppression of brain NGF, NF-κB, and by its antioxidant activity in the brain following neuropathic pain in rats.
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