相关实验视频

Updated: May 27, 2025

Measurement of Insulin- and Contraction-Stimulated Glucose Uptake in Isolated and Incubated Mature Skeletal Muscle from Mice

Measurement of Insulin- and Contraction-Stimulated Glucose Uptake in Isolated and Incubated Mature Skeletal Muscle from Mice

Published on: May 16, 2021

性饮食增强了有氧运动适应性,并促进了高血糖小鼠的肌肉线粒体重塑

Pattarawan Pattamaprapanont^1,2,3, Roberto C Nava^1,2, Mia Formato¹

¹Research Division; Joslin Diabetes Center, Boston, MA, USA.

Research square

|February 20, 2025

概括

性饮食可以改善高血糖症患者的有氧运动能力. 这种低碳水化合物饮食使血糖正常化,并增强身体对运动训练的适应性反应.

科学领域:

运动生理学运动生理学
代谢健康代谢健康
营养科学营养科学

背景情况:

氧气吸收峰值 (VO₂峰值) 是有氧健身的关键指标,也是运动的主要益处.
慢性高血糖,在糖尿病中常见,损害了身体改善VO2峰值的能力,以应对有氧训练.
在高血糖症中这种适应障碍的潜在机制尚未完全理解.

研究的目的:

在超血糖症的小鼠模型中,研究性饮食是否可以恢复有氧运动适应性.
为了确定一个性饮食对骨肌肉重塑和高血糖小鼠接受运动训练的血管标志物的影响.

主要方法:

过高血糖在小鼠中被诱导使用链毒素 (STZ).
给小鼠吃标准 (STZ-CHOW) 或类饮食 (STZ-KETO) 来使血糖正常化.
小鼠接受了有氧运动训练,并评估了生理和分子适应.

主要成果:

类饮食 (STZ-KETO) 可以使血糖水平正常化.
有氧运动训练在STZ-KETO小鼠中改善了VO2峰值,而在STZ-CHOW小鼠中则减弱了这一效果.
在STZ-KETO小鼠中,骨肌有氧重塑增强,毛细血管密度增加,血管原生标志物恢复,脂肪酸氧化改善.

结论:

性饮食可以恢复适应性反应有氧运动训练在高血糖的小鼠模型.
这种改善与增强的骨肌有氧能力,血管化和线粒体功能有关.
性饮食可能是改善高血糖和糖尿病患者炼表现的治疗策略.

更多相关视频

Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice

Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice

Published on: November 16, 2011

High-resolution Respirometry to Measure Mitochondrial Function of Intact Beta Cells in the Presence of Natural Compounds

High-resolution Respirometry to Measure Mitochondrial Function of Intact Beta Cells in the Presence of Natural Compounds

Published on: January 23, 2018

相关概念视频

Metabolic States of the Body: Fasting and Starvation

Metabolic States of the Body: Fasting and Starvation

During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...

Exercise and Muscle Performance

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...