[Use of allogeneic mesenchymal stem cells in the treatment of intestinal inflammatory diseases].

Aim: to determine the whether mesenchymal stem cells (MSC) may be used in the treatment of patients with chrOnic intestinal inflammatory diseases (IID).

Subjects And Methods: Thirty-nine patients with ulcerative colitis (UC) (Group 1) and 11 with Crohn's disease (CD) (Group 2) were examined. Comparative groups included 30 patients with UC (Group 2) and 10 with CD (Group 4).

[Allogeneic mesenchymal stromal cells in patients with ulcerative colitis: two years of observation].

Unlabelled: The aim of the study was to determine the efficacy and safety of mesenchymal stromal cells (MSCs) of bone marrow in the treatment of patients with ulcerative colitis (UC).

Materials And Methods: The study included 44 patients with ulcerative colitis (UC), which was implemented MSC transplantation, 40 patients with UC who received standard therapy with mesalazane (salofalka) 4-6 g/day and corticosteroids (prednisone)--1-2 mg/kg, azathioprine--1.5 mg/kg methotrexate 20-50 mg/m2, and 12 patients who underwent induction and maintenance of infliximab therapy.

[Application of allogeneic mesenchymal stem cells in complex patients treatment with ulcerative colitis].

Systemic transplantation of mesenchymal stem cells (MSC) is known to promote reparative process in a number of tissue damage as well as mucous healing one. It provided the basis for our study which was aimed to the effect of systemic transplantation of allogenic MSC (intravenous transfusion) in complex therapy of patients with Ulcerative Colitis.

["Ischemia/reperfusion" for stem cells of two "critical" cell renewal systems of organism].

In this article is presented the result of the experiments on mice-hybrids F1(CBA x C57B1/6), which indicates the presence of the reaction of "ischemia/reperfusion" for stem cells of two "critical" cell renewal systems of organism (bone marrow and intestinal epithelium) during the irradiation under the conditions of hypoxic radioprotector application. The additional injection of the source of nitric oxide radicals-sodum nitroprusside (SNT) to the mice right after the irradiation under the conditions of hypoxic protection by serotonin, resulted the substantial increase of the survival rate of hematopoietic stem cells (registered by the methods of endogenous and exogenous colony forming in spleen) and stem cells of intestinal epithelium (registered by the method of intestinal "microcolonies"). The similar radioprotective effect was also registered during the test of survival rate of mice under tests of "bone marrow" and "intestinal" forms of radiation lethality that is evidence of the importance of the realization of phenomenon "ischemia/reperfusion" in the reaction of whole organism on the acute radiation injury.

[Radioprotective and antistressful properties of nitric oxide production modulators].

The radioprotective and antistressful activities of L-arginine and the "Pronumol" preparation, in which L-arginine is contained in the complex of proteins with nucleic acids, were studied. In mice repeated peroral intake of L-arginine and "Pronumol" partially prevented radiation-induced and stress-induced lipid peroxidation and DNA degradation in thymus, increased hemopoietic stem cell survival, and prevented an increase in chromosome aberration frequency in bone marrow cells of irradiated mice. When repeatedly administered per os before irradiation, "Pronumol" increased survival of intestinal stem cells in irradiated mice and prevented thymus cell devastation induced by radiation and stress.