Intended for healthcare professionals

Rapid response to:

Papers

Quetiapine and rivastigmine and cognitive decline in Alzheimer's disease: randomised double blind placebo controlled trial

BMJ 2005; 330 doi: https://doi.org/10.1136/bmj.38369.459988.8F (Published 14 April 2005) Cite this as: BMJ 2005;330:874

Rapid Response:

correction: this could be low DHEA...

"In 1985 I suggested low DHEA could result in Alzheimer's disease. While controversial, this hypothesis has since been supported. A case may be made that low DHEA is connected to AD.

While I could not find research connecting quetiapine with DHEA, quetiapine reduces prolactin which is a direct stimulator of DHEA and quetiapine reduces cortisol which has been interpreted to indicate that quetiapine shuts down the HPA axis.

I suggest the negative effects of quetiapine on individual with AD is due to the shutdown of DHEA."

Competing interests: None declared

Competing interests: No competing interests

18 February 2005
James M. Howard
independent biologist
Fayetteville, Arkansas, U.S.A.