The myelinotrophic action of Prosaptide((TM)) D5 was investigated in develo
ping rats. Sulfatide concentrations in brain and sciatic nerve were determi
ned to assess the development of myelination. Subcutaneous DS-injection sig
nificantly increased sulfatide concentrations in both brain and sciatic ner
ve by 250 and 150% over controls, respectively. D5 promoted ERK phosphoryla
tion in iSC Schwann cells similar to prosaposin. The results showed that D5
treatment stimulated a myelination process in developing rat. (C) 2001 Els
evier Science B.V. All rights reserved.