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Neuroprotective properties of ethanolic extract of Citrus unshiu Markovich peel through NADPH oxidase 2 inhibition in chemotherapy-induced neuropathic pain animal model

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Abstract
The present study aimed to determine the antioxidant effect of Citrus unshiu Markovich (CUM) extract in neuronal cell lines under oxidative stress and to investigate the effect of chemotherapy-induced peripheral neuropathy (CIPN) on the nociceptive response in a preclinical mice model. We tested the inhibition of H2O2 in Neuro2A cells treated with CUM. Experimental animals were treated with oxaliplatin to induce CINP, and then administered oral CUM for 4 weeks in order to observe the effect of CUM. Animals were evaluated weekly for thermal hyperalgesia and digital motor nerve conduction velocity (NCV). Lumbar dorsal root ganglia (DRG) isolated from each animal were evaluated through immunochemical and western blot analysis for nerve damage, inflammatory response, and expression of redox signaling factors. The main mechanisms were determined to be decreased inducible nitric oxide synthase (iNOS) production due to the inhibition of NADPH oxidase 2 (NOX2). To determine the functional role of NOX2 in CINP, we administrated CUM into NOX2-deficient mice with neuropathic pain. Therefore, we suggest that CUM controls the expression levels of inflammatory factors in CINP via NOX2 inactivation. This study demonstrated that a complementary medicine such as CUM might be a potential novel therapeutic agent for the treatment of CINP.
Author(s)
장애리최고은김유정이길현현경예
Issued Date
2021
Type
Article
Keyword
chemotherapy-induced peripheral neuropathyCitrus unshiu Markovichdorsal root gangliaNADPH oxidase 2nerve conduction velocityreactive oxygen species
DOI
10.1002/ptr.7304
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9446
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2602641637&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Neuroprotective%20properties%20of%20ethanolic%20extract%20of%20Citrus%20unshiu%20Markovich%20peel%20through%20NADPH%20oxidase%202%20inhibition%20in%20chemotherapy-induced%20neuropathic%20pain%20animal%20model&offset=0&pcAvailability=true
Publisher
PHYTOTHERAPY RESEARCH
Location
미국
Language
영어
ISSN
0951-418X
Citation Volume
35
Citation Number
12
Citation Start Page
6918
Citation End Page
6931
Appears in Collections:
Medicine > Nursing
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