The aqueous extract of Atractylodes Macrocephalae Rhizoma attenuates sarcopenia caused by unhealthy dietary patterns and immobilization via the alleviation of atrophy of skeletal muscles in C57BL/6JNifdc.

IF 2.5 3区 医学 Q3 CHEMISTRY, MEDICINAL
Su Gao, Jie Su, Jingjing Yu, Meiqiu Yan, Yu Wang, Caozheng Shi, Hengpu Zhou, Yuzhong Du, Suhong Chen, Guiyuan Lv
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引用次数: 0

Abstract

Objective: To evaluate the effect of aqueous extract of Atractylodes atractylodes Rhizoma (AME) in improving muscle atrophy in mice, and to explore its mechanism of action.

Methods: We induced skeletal muscle atrophy in mice by simulating human unhealthy lifestyle habits and concurrently administered them with AME. The polysaccharide content in the AME was determined using a UV-Vis spectrophotometer. The contents of three primary pharmacologically active components in the AME were quantified via HPLC. Body composition analysis was conducted weekly on the mice, and the mass of hindlimb skeletal muscles was measured after six weeks of treatment. Histopathological analysis of the skeletal muscles was performed using hematoxylin and eosin (HE) staining to evaluate the effect of AME on muscle atrophy. Mice grip strength and endurance were measured to assess their motor abilities and skeletal muscle function. Mechanisms underlying the ameliorative effect of AME on skeletal muscle atrophy were explored using qPCR and immunofluorescence staining techniques.

Results: The modeling method employing alternate-day feeding with high-fat high-sugar diet combined with hindlimb immobilization significantly reduced the body weight of model mice within two weeks (P < 0.0001). Administration of Atractylodis Macrocephalae Radix aqueous extract to mice for six weeks increased body weight, total lean mass, and fat mass (P < 0.01, P < 0.001, P < 0.001 respectively). It also augmented the wet weight of the quadriceps femoris, gastrocnemius, soleus, and tibialis anterior muscles (P < 0.001, P < 0.01, P < 0.05, P < 0.05 respectively), enlarged the cross-sectional area of gastrocnemius muscle fibers, and improved the pathological morphology of skeletal muscles. Additionally, it enhanced skeletal muscle function in mice, increasing grip strength and endurance (P < 0.05), and augmented hindlimb microcirculatory blood flow (P < 0.01). Serum creatinine levels in mice were increased (P < 0.001), and the expression levels of genes related to skeletal muscle proliferation and differentiation, including Myf5, MyoD, Myogenin, Mef2, and myosin, were upregulated, Trim63 and Fbxo32 were downregulated. Furthermore, the conversion of type I to type II muscle fibers in the soleus muscle was improved.

Conclusion: Long-term IF & HFHS dietary patterns combined with hind limb immobilization can decrease overall muscle mass in mice, leading to a transformation of slow muscle fibers to fast muscle fibers. AME can increase skeletal muscle mass, enhance muscle function, and resist the transformation of slow muscle fibers to fast muscle fibers by regulating the expression of myogenic markers.

苍术水提物通过减轻C57BL/6JNifdc骨骼肌萎缩,减轻由不健康饮食模式和固定化引起的肌肉减少症。
目的:评价苍术水提物(AME)对小鼠肌肉萎缩的改善作用,并探讨其作用机制。方法:模拟人类不健康的生活习惯诱导小鼠骨骼肌萎缩,并同时给药AME。采用紫外-可见分光光度计测定AME中多糖的含量。采用高效液相色谱法测定了AME中3种主要药理活性成分的含量。每周对小鼠进行体成分分析,治疗6周后测量后肢骨骼肌质量。采用苏木精和伊红(HE)染色对骨骼肌进行组织病理学分析,评价AME对肌肉萎缩的影响。测量小鼠的握力和耐力,以评估其运动能力和骨骼肌功能。采用qPCR和免疫荧光染色技术探讨AME对骨骼肌萎缩的改善作用机制。结果:采用高脂高糖隔日饲喂联合后肢固定化的造模方法,在两周内显著降低了模型小鼠的体重(P 结论:长期中粮+ HFHS联合后肢固定化的饮食模式可使小鼠整体肌肉质量降低,导致慢肌纤维向快肌纤维转化。AME可以通过调节成肌标志物的表达,增加骨骼肌质量,增强肌肉功能,抵抗慢肌纤维向快肌纤维的转化。
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来源期刊
Fitoterapia
Fitoterapia 医学-药学
CiteScore
5.80
自引率
2.90%
发文量
198
审稿时长
1.5 months
期刊介绍: Fitoterapia is a Journal dedicated to medicinal plants and to bioactive natural products of plant origin. It publishes original contributions in seven major areas: 1. Characterization of active ingredients of medicinal plants 2. Development of standardization method for bioactive plant extracts and natural products 3. Identification of bioactivity in plant extracts 4. Identification of targets and mechanism of activity of plant extracts 5. Production and genomic characterization of medicinal plants biomass 6. Chemistry and biochemistry of bioactive natural products of plant origin 7. Critical reviews of the historical, clinical and legal status of medicinal plants, and accounts on topical issues.
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