I believe that research is being conducted on the utilisation of exogenous GH treatment and may have had some significant effects on those with slow progressing MS, by attenuating (or slowing) cognitive deficits and motor deficits. I recently asked a question on this in research gate on behalf of a colleague. I was doing research on the use of GH in Brain Injury and MDD sub types and am still busy with research on this. If this is of interest, I can forward you the name of the professional who is aware of this research. I hope this is of use.