Abstract
Using a TV device for studying microcirculation (×40), we studied the density of the whole microvascular network and arteriolar its compartment in the pia mater of the sensorimotor cortex in rats of different age (2-3, 12, and 24 months) after intracerebral transplantation of mesenchymal stem cells or nutrient medium (control). The density of the microvascular network in the pia mater remained practically unchanged until 1 year, but then decreased by 1.8 times with adding (up to 2 years). MSC transplantation 1.5-1.8-fold increased the density of the pial microvessels in animals of all age groups in comparison with intact and control rats; the density of the arteriolar compartment increased by 2.1-2.4 times. Intracerebral injection of MSC to 1-year-old animals prevented pathological decrease in the density of microvascular network during the next year of life.
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