Abstract
Mitochondrial ultrastructure in cardiomyocytes from 3- and 24-month-old Wistar and OXYS rats was investigated using a new approach designed for morphometric analysis. The data fully confirm the electron microscopy data: the area of the inner mitochondrial membrane per unit volume of mitochondria was significantly decreased with age, as found on heart muscle section. In 3-month-old Wistar rats from the control group, this parameter was 41.3 ± 1.52 μm2/μm3, where-as in OXYS rats it was decreased to 30.57 ± 1.74 μm2/μm3. With age, an area of the inner mitochondrial membrane per unit volume of mitochondria declined in both rat strains: Wistar — from 41.3 ± 1.52 to 21.47 ± 1.22 μm2/μm3, OXYS — from 30.57 ± 1.74 to 16.3 ± 0.89 μm2/μm3. A new method that we designed and used for morphometric analysis notably simplifies the process of morphometric measurements and opens up good opportunities for its further optimization using image recognition technology.
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Original Russian Text © Ch. M. El’darov, V. B. Vays, I. M. Vangeli, N. G. Kolosova, L. E. Bakeeva, 2015, published in Biokhimiya, 2015, Vol. 80, No. 5, pp. 716–722.
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El’darov, C.M., Vays, V.B., Vangeli, I.M. et al. Morphometric examination of mitochondrial ultrastructure in aging cardiomyocytes. Biochemistry Moscow 80, 604–609 (2015). https://doi.org/10.1134/S0006297915050132
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DOI: https://doi.org/10.1134/S0006297915050132