39, 40). {in addition|in addition|among other things|in addition|in addition}, the ability of umbilical cord blood cells to form {nervous system|nerve cells}, the function of which {can|should} be changed with ASD, {depends|may depend|exclusively depends|obeys|directly depends|is dependent} depends on {many|a number of} factors, {such as|for example}, for example, the type of stem cells used, the method of administration and the cellular environment (41). {for today |in the current realities| for today}, {although |though} {we have |here|here} {there are|are|known} {many|quite a few|interesting discoveries that point to positive effects in {the context|plan of} neurological {diseases|diseases}, {such as|like|like/like} releasing {causes|factors} {growth|enhancement} or supporting {regeneration and recovery|regeneration|recovery} {cartilage and bone|damaged} tissue {gray matter|brain} (42), less is known about the molecular mechanisms of action of stem cells (43). {also|more|in addition|in addition}, since {diverse|different|different} forms of RAS {are associated with|concerning |relate to} {changes | edits} in {different types | different types} of cells, the use of a single {approach | option} for the #file_links["C:\Users\Admin\Desktop\file\gsa+en+50k100kGeorgiy2504252P2URLBB.txt",1,N] {is unlikely| may be}not only impractical, but {even | and} harmful.