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Rapid morphological characterization of isolated mitochondria using Brownian motion.


ABSTRACT: Mitochondrial morphology has been associated with numerous pathologies including cancer, diabetes, obesity and heart disease. However, the connection is poorly understood-in part due to the difficulty of characterizing the morphology. This impedes the use of morphology as a tool for disease detection/monitoring. Here, we use the Brownian motion of isolated mitochondria to characterize their size and shape in a high throughput fashion. By using treadmill exercise training, mitochondria from heart and gastrocnemius of Balb/c mice were modulated in size and used to investigate the protocol. Consistent with previous reports, the heart mitochondria of untrained mice increased 5% in diameter immediately after a single bout of moderate exercise (1.091 ± 0.004 ?m) as compared to completely sedentary controls (1.040 ± 0.022 ?m). In addition, no change was observed in the size of gastrocnemius mitochondria (1.025 ± 0.018 ?m), which was also in agreement with previous studies. The method was also successfully applied to smaller Saccharomyces cerevisiae mitochondria.

SUBMITTER: Palanisami A 

PROVIDER: S-EPMC4590767 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature

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Rapid morphological characterization of isolated mitochondria using Brownian motion.

Palanisami Akilan A   Fang Jie J   Lowder Thomas W TW   Kunz Hawley H   Miller John H JH  

Analytical methods : advancing methods and applications 20120126 2


Mitochondrial morphology has been associated with numerous pathologies including cancer, diabetes, obesity and heart disease. However, the connection is poorly understood-in part due to the difficulty of characterizing the morphology. This impedes the use of morphology as a tool for disease detection/monitoring. Here, we use the Brownian motion of isolated mitochondria to characterize their size and shape in a high throughput fashion. By using treadmill exercise training, mitochondria from heart  ...[more]

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