相关实验视频
Updated: Jul 2, 2025

Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
早期生命中的雄激素管理减轻了与衰老相关的肌肉蛋白质合成下降
David D Church1, Amit Zamir2, Guillermo Escalante3
1Donald W. Reynolds Institute on Aging, Center for Translational Research in Aging & Longevity, University of Arkansas for Medical Sciences, Little Rock, AR.
纳德罗隆二甲酸 (ND) 在小鼠中增加了和肌肉分数合成率 (FSR). 长期使用ND似乎在衰老期间保持肌肉FSR升高.
科学领域:
- 生理学 生理学 生理学
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 像纳德罗隆二甲酸 (ND) 这样的类固醇-类固醇 (AAS) 是提高表现的药物.
- 了解AAS对组织合成的长期影响对于健康和性能研究至关重要.
研究的目的:
- 为了研究纳德罗隆二甲酸 (ND) 对各种组织中的分数合成速率 (FSR) 的急性和长期影响.
- 为了确定ND的管理是否会在衰老过程中影响组织FSR.
主要方法:
- 雄性C57BL/6小鼠接受了ND或假药治疗6周,从7个月大开始.
- 组织样本 (脏,肝脏,心脏,腹膜,单体) 用脱水标记和液体染色学-并列质谱学分析FSR.
- 动物在停产1周后和16个月后被评估,以评估急性和长期影响.
主要成果:
- 与假药相比,ND治疗的小鼠的FSR升高,与老年小鼠相比,年轻小鼠的FSR更高.
- 年轻小鼠的肝脏和心脏FSR显著高于老年小鼠,ND和假小组之间没有差异.
- 胃内膜FSR在年轻小鼠中高于年长小鼠,并且在接受ND治疗的小鼠中也比假药更高.
- 年轻小鼠的 Soleus FSR 比较高,接受 ND 治疗的老动物在胃角肌和 Soleus 肌肉中显示出 FSR 的升高.
结论:
- 纳德罗隆二甲酸 (ND) 的使用导致脏和肌肉部分合成率的增加.
- 在年轻成年小鼠中长期使用ND似乎在衰老过程中维持了肌肉FSR的升高.
更多相关视频
11:57Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans
Published on: November 26, 2017
12:59Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
相关概念视频
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Signs of Puberty
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Menopause
Factors Affecting Protein-Drug Binding: Patient-Related Factors
Age stands as a key determinant in protein-drug binding. Neonates, characterized by low albumin content, experience heightened concentrations of unbound drugs such as phenytoin and...