The effects of combined low-intensity exercise with naringenin on regenerating protein family in vivo and in vitro after sciatic nerve injury.

IF 1.2 Q3 REHABILITATION
Journal of Exercise Rehabilitation Pub Date : 2025-04-30 eCollection Date: 2025-04-01 DOI:10.12965/jer.2550124.062
Chan-Gyun Oh, Yoon-A Jeon, Young Jae Lee, Tae-Beom Seo
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Abstract

The purpose of this study was to investigate the effect of combining low-intensity treadmill exercise with naringenin treatment on the expression of axonal regrowth-related proteins following sciatic nerve injury (SNI). The extracts were evaluated for cytotoxicity and cell viability using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and the effects of the extracts were analyzed in vitro using primary cultured Schwann cells and dorsal root ganglion neurons (DRGs). In vivo, axonal regrowth-related protein expression levels and neurite outgrowth were assessed through Western blot and immunofluorescence staining, respectively. The results indicated that neither extract exhibited cytotoxicity. In primary cultured Schwann cells, 10 μM naringin and 10 μM/50 μM naringenin significantly increased growth associated protein-43 (GAP-43) expression, while in DRGs, both naringin and naringenin treatments resulted in increased neurite length. For in vivo experiment, all animals were divided into the vehicle group, the naringin-treated group post-SNI (Gin), the naringenin-treated group post-SNI (Genin), the naringin and exercise group post-SNI (Gin+Ex), and the naringenin and exercise group post-SNI (Genin+Ex). Naringenin treatment after early SNI enhanced GAP-43 expression. Following 14 days of exercise combined with treatment, both GAP-43 and phosphorylated extracellular signal-regulated kinase levels were significantly increased in the Genin and the Genin+Ex groups, whereas phosphorylated-protein kinase B significantly increased only in the Genin+Ex group. Our findings suggest that naringenin, when used in conjunction with low-intensity treadmill exercise, may effectively promote the expression of axonal growth-related proteins following SNI.

低强度运动联合柚皮素对坐骨神经损伤后体内外再生蛋白家族的影响。
本研究旨在探讨低强度跑步机运动联合柚皮素治疗对坐骨神经损伤(SNI)后轴突再生相关蛋白表达的影响。采用3-(4,5-二甲基噻唑-2-基)-2,5-二苯基溴化四唑试验评价提取物的细胞毒性和细胞活力,并在体外用原代培养的雪旺细胞和背根神经节神经元(DRGs)分析提取物的作用。在体内,分别通过Western blot和免疫荧光染色评估轴突再生相关蛋白表达水平和神经突生长情况。结果表明,两种提取物均无细胞毒性。在原代培养的雪旺细胞中,10 μM柚皮素和10 μM/50 μM柚皮素均显著提高生长相关蛋白43 (growth associated protein-43, GAP-43)的表达,而在DRGs中,柚皮素和柚皮素处理均导致神经突起长度增加。体内实验将所有动物分为载药组、柚皮素处理组sni后(Gin)、柚皮素处理组sni后(Genin)、柚皮素与运动组sni后(Gin+Ex)、柚皮素与运动组sni后(Genin+Ex)。早期SNI处理后柚皮素增强了GAP-43的表达。经过14天的运动和治疗,GAP-43和磷酸化的细胞外信号调节激酶水平在Genin和Genin+Ex组中均显著升高,而磷酸化蛋白激酶B仅在Genin+Ex组中显著升高。我们的研究结果表明,当柚皮素与低强度跑步运动结合使用时,可以有效促进SNI后轴突生长相关蛋白的表达。
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来源期刊
CiteScore
3.50
自引率
5.30%
发文量
45
审稿时长
10 weeks
期刊介绍: The Journal of Exercise Rehabilitation is the official journal of the Korean Society of Exercise Rehabilitation, and is published six times a year. Supplementary issues may be published. Its official abbreviation is "J Exerc Rehabil". It was launched in 2005. The title of the first volume was Journal of the Korean Society of Exercise Rehabilitation (pISSN 1976-6319). The journal title was changed to Journal of Exercise Rehabilitation from Volume 9 Number 2, 2013. The effects of exercise rehabilitation are very broad and in some cases exercise rehabilitation has different treatment areas than traditional rehabilitation. Exercise rehabilitation can be presented as a solution to new diseases in modern society and it can replace traditional medicine in economically disadvantaged areas. Exercise rehabilitation is very effective in overcoming metabolic diseases and also has no side effects. Furthermore, exercise rehabilitation shows new possibility for neuropsychiatric diseases, such as depression, autism, attention deficit hyperactivity disorder, schizophrenia, etc. The purpose of the Journal of Exercise Rehabilitation is to identify the effects of exercise rehabilitation on a variety of diseases and to identify mechanisms for exercise rehabilitation treatment. The Journal of Exercise Rehabilitation aims to serve as an intermediary for objective and scientific validation on the effects of exercise rehabilitation worldwide. The types of manuscripts include research articles, review articles, and articles invited by the Editorial Board. The Journal of Exercise Rehabilitation contains 6 sections: Basic research on exercise rehabilitation, Clinical research on exercise rehabilitation, Exercise rehabilitation pedagogy, Exercise rehabilitation education, Exercise rehabilitation psychology, and Exercise rehabilitation welfare.
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