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- W2924889775 abstract "Mitochondrial volume is correlated with cell function and internal cell processes. Changes in mitochondrial volume were associated with advanced states of cardiac disease. Thus, measurements of mitochondrial dimension deformations are important to the understanding of cell function and its deterioration. Existing methods either allow measurements of the volume of isolated mitochondria, which are an inferior model to that of isolated cells, or they allow short time measurements that are toxic to the cells. Recent studies have discovered that mitochondrial deformation along a given cell axis can be measured by using the Fourier transformation on the variation in transmitted light intensity induced by the periodic lattice of myofilaments alternating with mitochondrial rows. However, this method was used only offline and in a line scan mode, making it impossible to measure both axes. We designed an open source program in LabVIEW to take advantage of the transmitted light diffraction technique and quantify mitochondrial two dimension (2D) deformation in cardiomyocytes, in situ in real time for long periods (more than several seconds). We validated the program on synthetic and on experimental images from rabbit and rat ventricular myocytes. The program can analyze offline and real time simultaneous 2D mitochondrial deformation dynamics as well as also sarcomere length dynamics. Moreover, the program can accurately analyze images acquired from different cameras. Quantification of mitochondrial 2D deformations is a powerful tool for exploring cell biophysics and bioenergetics mechanisms and will lay the foundation for a future clinical tool for quantifying mitochondrial volume changes associated with different cardiac diseases." @default.
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- W2924889775 date "2019-03-27" @default.
- W2924889775 modified "2023-10-13" @default.
- W2924889775 title "Real time mitochondrial dimension measurements" @default.
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- W2924889775 doi "https://doi.org/10.14440/jbm.2019.262" @default.
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