Intranasal Insulin for Improved Mood and Cognition
This post follows on the previous one that raised the issue of brain-specific insulin sensitivity being a common feature of neurological diseases/disorders. It appears to be much more than just a rare possibility. There have been numerous studies and even more are ongoing. Intranasal insulin has even been tried one single-gene type of autism ( Phelan-McDermid Syndrome) and in autism’s big brothers, bipolar and schizophrenia. I did look for trials in children with Down Syndrome, since here is a direct link to Alzheimer’s, but there is just a trial in adults in progress. There was an early trial in typical adults which is interesting since it found not only a cognitive improvement but also improved mood, so perhaps it should be trialed in adults with depression. In the US, interestingly, T3 thyroid hormone is sometimes given off-label for depression and some antidepressants increase the conversion of the pro-hormone T4 to T3 in the brain. I think cent...