"attempts to reproduce similar findings in humans have failed" CPH treatment may be useful in dementias of medium level in quite old groups of patients, since

"attempts to reproduce similar findings in humans have failed" CPH treatment may be useful in dementias of medium level in quite old groups of patients, since 48% of the verum group displayed improvements in the memory functions against 28% of the placebo group. https://pubmed.ncbi.nlm.nih.gov/2506844/ https://pubmed.ncbi.nlm.nih.gov/2506844/ "The drug thus might simply be a treatment for the type of genetic disorder that the mouse model" Got any experimental or observational evidence for this hypothesis?