The aim of this work was to study the sensitivity of the visual system in 5-day "dry" immersion with a course of high-frequency electromyostimulation (HFEMS) and without it. "Dry" immersion (DI) is one of the most effective models of microgravity. DI reproduces three basic effects of weightlessness: physical inactivity, support withdrawal and elimination of the vertical vascular gradient.
View Article and Find Full Text PDFNanoparticles made of polylactide-poly(ethylene glycol) block-copolymer (PLA-PEG) are promising vehicles for drug delivery due to their biodegradability and controllable payload release. However, published data on the drug delivery properties of PLA-PEG nanoparticles are heterogeneous in terms of nanoparticle characteristics and mostly refer to low injected doses (a few mg nanoparticles per kg body weight). We have performed a comprehensive study of the biodistribution of nanoparticle formulations based on PLA-PEG nanoparticles of ~100nm size at injected doses of 30 to 140mg/kg body weight in healthy rats and nude tumor-bearing mice.
View Article and Find Full Text PDFThe purpose of present paper is the investigation of polyoxidonium effects on the functions of circulating pool of phagocytic cells and the estimation of its potential inclusion in complex therapy in penetrating eye injuries. On experimental model of eye injuring in rats there has been established that polyoxidonium attenuated some negative glucocorticoid effects on phagocytic cells. Inclusion of polyoxidonium in complex therapy optimized the course of injuring process according to parameters of the least infiltration of damage area with immunocompetent and effector cells, scar structure and other parameters.
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