Therapy with xenogenic proteomic complex from embryonic brain cells inhibits the progression of experimentally induced chronic renal failure

Introduction. In previously published experimental studies, we have shown that in rats with pre-modeled acute post-ischemic renal failure, therapy with a proteomic complex isolated from brain cells of pig embryos has a pronounced therapeutic effect, reducing the severity of functional and histological disorders and preventing the transition of the pathological process into chronic kidney insuffiency. The aim of this study is to evaluate the effectiveness of this therapy for the course of artificially induced chronic renal failure (CRF) in rats. Material and methods. Experiments were carried out on 45 white mongrel male rats weighing 200-240 g. CRF was modeled by unilateral nephrectomy and resection of both poles of the remaining kidney, which reduced the mass of the functioning parenchyma by 80%. In the 1-st series of experiments no therapy was performed. In the 2-nd - 4-th series the animals were intraperitoneally injected with a fractionated xenogenic proteomic complex (secretom) from pig brain stem and progenitor cells (SSPC) at a daily dose of 0.1 ml in different modes: two 10-days courses with a 10-days break between them (2nd series); prolongation of the 1st course up to 20 days and a repeated 10-days course after 10 days (3rd series); continuous SSPC therapy for 30 days (4-th series). 5th series - intact animals. The effectiveness of therapy was evaluated based on the severity of the development of compensatory renal hypertrophy, the dynamics of biochemical parameters of kidney function, the activity of enzymes (ALT, AST, LDH, alkaline phosphatase) in blood and urine and the level of uremic neurotoxins 3-indoxyl sulfate and p-tolyl sulfate in the blood.