中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (32): 5136-5140.doi: 10.12307/2024.504

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

人参皂苷Rg1干预小鼠巨大肩袖损伤后的肌肉退变

何榕真1,2,应吕方2,贺行文2,陈传顺1,印岳松1,张克祥1,王梓力1   

  1. 1中南大学湘雅三医院骨科,湖南省长沙市  410006;2宁波市杭州湾医院骨科,浙江省宁波市  315336
  • 收稿日期:2023-08-10 接受日期:2023-10-12 出版日期:2024-11-18 发布日期:2023-12-28
  • 通讯作者: 王梓力,博士,助理研究员,中南大学湘雅三医院骨科,湖南省长沙市 410006
  • 作者简介:何榕真,男,1984年生,河北省秦皇岛市人,汉族,2012年中南大学毕业,硕士,副主任医师,主要从事关节与运动医学方向研究。
  • 基金资助:
    浙江省中医药科技计划项目(2020ZB231),项目负责人:何榕真;湖南省卫健委一般指导课题(202204073833),项目负责人:张克祥

Effect of ginsenoside Rg1 on muscle degeneration after massive rotator cuff injury in mice

He Rongzhen1, 2, Ying Lyufang2, He Xingwen2, Chen Chuanshun1, Yin Yuesong1, Zhang Kexiang1, Wang Zili1   

  1. 1Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha 410006, Hunan Province, China; 2Department of Orthopaedics, Ningbo Hangzhou Bay Hospital, Ningbo 315336, Zhejiang Province, China
  • Received:2023-08-10 Accepted:2023-10-12 Online:2024-11-18 Published:2023-12-28
  • Contact: Wang Zili, MD, Assistant researcher, Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha 410006, Hunan Province, China
  • About author:He Rongzhen, Master candidate, Associate chief physician, Department of Orthopaedics, Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha 410006, Hunan Province, China; Department of Orthopaedics, Ningbo Hangzhou Bay Hospital, Ningbo 315336, Zhejiang Province, China
  • Supported by:
    Science and Technology Program of Traditional Chinese Medicine of Zhejiang Province, No. 2020ZB231 (to HRZ); General Guidance Subject of Hunan Provincial Health Commission, No. 202204073833 (to ZKX)

摘要:


文题释义:

人参皂苷Rg1:为人参属植物人参、三七、西洋参中共有的有效成分之一。人参等作为传统中药已经广泛应用于心血管系统、神经系统、肝病、恶性肿瘤等多种疾病的预防和治疗,因此开展了大量的基础研究,发现人参皂苷 Rg1有抗炎、抗氧化、抗细胞凋亡、降血脂等作用,具有广泛的生物学活性。
肩袖肌脂肪浸润:在退变、缺血、创伤等情况下,肩袖肌肉生理、结构和功能发生改变,萎缩的肌肉组织被脂肪组织替代,增生的脂肪会累积于肌束周围,导致肩袖力学特性下降,容易出现肩袖损伤,而且在进行肩袖损伤修复过程中,由于脂肪组织力学特性差,修复的肩袖常出现再次撕裂。


背景:肩袖肌退变(肌肉萎缩、纤维化和脂肪浸润)是肩袖撕裂后出现的常见问题,严重影响肩关节功能和手术预后。人参皂苷Rg1具有抗氧化、抗细胞凋亡、降血脂等生物效应,然而人参皂苷Rg1对肩袖损伤后肌肉退变的影响未见报道。

目的:探讨人参皂苷 Rg1对巨大肩袖损伤小鼠肌肉退变的影响。
方法:将60只C57BL/6J小鼠随机分为假手术组、模型组、人参皂苷Rg1低剂量组、人参皂苷Rg1高剂量组,每组 15 只。假手术组小鼠切开右肩皮肤后缝合,其余3组小鼠均行右侧肩关节肩袖损伤造模,模拟巨大肩袖撕裂手术切断冈上肌肌腱和肩胛上神经压迫。术后假手术组和模型组腹腔注射生理盐水0.5 mL;人参皂苷Rg1低、高剂量组予以腹腔注射人参皂苷Rg1 30,60 mg/kg,1次/d,共注射6周。末次注射后次日予以步态分析评估小鼠肢体功能,安乐死后取术侧冈上肌测量肌肉萎缩率、肌肉收缩力,肌肉组织进行油红O染色、Masson染色,RT-PCR检测萎缩、纤维化、脂肪浸润相关基因的表达。

结果与结论:①与模型组相比,人参皂苷Rg1低、高剂量组爪印面积、步长显著增加(P < 0.05);②与模型组相比,人参皂苷Rg1低、高剂量组肌纤维横截面积、冈上肌收缩力显著增加(P < 0.05),湿肌质量减少比率、脂肪浸润面积比率、胶原纤维面积比率显著下降(P < 0.05);③与模型组相比,人参皂苷Rg1低、高剂量组肌肉组织中萎缩、纤维化和脂肪浸润相关基因的表达显著下降(P < 0.05);④人参皂苷Rg1低、高剂量组爪印面积、冈上肌收缩力、肌纤维横截面积无统计学差异(P > 0.05),人参皂苷Rg1高剂量组其他指标均优于低剂量组(P < 0.05);⑤结果说明,人参皂苷Rg1能显著减轻小鼠巨大肩袖撕裂后肩袖肌萎缩、纤维化和脂肪浸润,并有利于肌肉力量及肢体功能的改善。

https://orcid.org/0009-0009-3679-7967(何榕真)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 人参皂苷Rg1, 巨大肩袖损伤, 脂肪浸润, 肌肉萎缩, 步态分析

Abstract: BACKGROUND: Rotator cuff muscle degeneration (muscle atrophy, fibrosis and fatty infiltration) is a common condition after rotator cuff tears, which seriously affects shoulder function and surgical outcomes. Ginsenoside Rg1 has biological effects such as anti-oxidation, anti-apoptosis and lipid-lowering. However, the effect of ginsenoside Rg1 on muscle degeneration after rotator cuff tear has not been reported.
OBJECTIVE: To investigate the effect of ginsenoside Rg1 on muscle degeneration after massive rotator cuff tear in mice.
METHODS: Sixty C57BL/6J mice were randomly divided into sham group, model group, ginsenoside Rg1 low dose group and ginsenoside Rg1 high dose group, with 15 mice in each group. The skin of the right shoulder of mice in the sham group was cut and sutured. Massive rotator cuff tear mouse models of the right shoulder were established in the other three groups. Supraspinatus tendon and suprascapular nerve compression were administrated. Mice in the sham and model groups were intraperitoneally injected with 0.5 mL of saline after operation, while those in the ginsenoside Rg1 low and high dose groups were intraperitoneally injected with ginsenoside Rg1 30 and 60 mg/kg respectively, once a day, for 6 weeks. Mice were assessed for limb function by gait analysis the day after the last injection. After euthanasia, the supraspinatus muscle on the operated side was taken to measure the muscle atrophy rate and muscle contractility. Muscle tissue was stained with oil red O and Masson. RT-PCR was used to detect the expression of atrophy, fibrosis, and fatty infiltration related genes.
RESULTS AND CONCLUSION: Compared with the model group, low- and high-dose ginsenoside Rg1 significantly increased paw print area and step length (P < 0.05). Compared with the model group, low- and high-dose ginsenoside Rg1 significantly increased myofiber cross-sectional area and supraspinatus contractility (P < 0.05), and significantly decreased wet muscle mass reduction ratio, fatty infiltration area ratio, and collagen fiber area ratio (P < 0.05). Compared with the model group, low- and high-dose ginsenoside Rg1 significantly decreased the expression of atrophy, fibrosis, and fatty infiltration related genes (P < 0.05). There was no significant difference in paw print area, supraspinatus muscle contractility, and myofiber cross-sectional area between ginsenoside Rg1 low and high dose groups (P > 0.05), and all other indexes were better in the ginsenoside Rg1 high dose group than in the ginsenoside Rg1 low dose group (P < 0.05). To conclude, ginsenoside Rg1 could significantly reduce muscle atrophy, fibrosis and fatty infiltration following massive rotator cuff tear in mice, which is beneficial to improve muscle strength and limb function.

Key words: ginsenoside Rg1, massive rotator cuff tear, fatty infiltration, muscle atrophy, gait analysis

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