We studied the mechanisms of regenerative (wound healing) effects of songorine associated with functional activation of mesenchymal progenitor cells. The key role of FGF receptors on these progenitor cells in the stimulation of realization of their growth potential under the effect of the alkaloid was demonstrated. Under in vitro conditions, the antibodies to FGF receptor abolished the songorine-induced increase in the number of fibroblast colony-forming units in bone marrow cell culture. The intensity of differentiation of mesenchymal precursors remained unchanged.
Experiments on Wistar rats showed that cisplatin and carboplatin induced similar morphological alterations in the ovaries. Both agents reduced the number of structural and functional elements, but the effect of cisplatin was more pronounced. Morphological changes observed in the early period after injection of the preparations were accompanied by prolongation of the estrous cycle, which was longer in rats treated with carboplatin. Partial and reversible sterility was observed in females at the early terms after cisplatin treatment.
The hepatoprotective effects of superlow dose preparation of antibodies to granulocytic CSF were studied on a model of CCl4-induced hepatitis. The preparation exhibited high antiinflammatory and antisclerotic activities determined by stimulation, mobilization, and determined homing of mesenchymal stem cells into damaged liver with subsequent differentiation of these cells into mature hepatocytes.
Comparative evaluation of the efficiency of prostatotropic agents was carried out in rat experiments. Serenoa repens plant preparation and polypeptides isolated from the cattle prostate were used for the treatment of benign hyperplasia. Drugs in parallel with sulpiride similarly led to shrinkage of the acinar epithelial area and to emergence of a trend to an increase of the stromal/epithelial proportion, more so after Serenoa repens treatment.
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