This study found that Huperzine A improved memory deficits in elderly and those with Alzheimer's disease. Huperzine A is an acetylcholinisterase inhibitor, thereby increasing the neurotransmitter acetylcholine. Huperzine A has also been shown to be neuroprotective through its antagonistic action with the NMDA receptors. Huperzine A has been shown to be protective from organophosphate toxicity.
children that eat organic have 6 times lower levels of organophosphate (pesticide) metabolites excreted on testing compared children eating non-organic diet
low dose pesticide (organophosphates) exposure associated with delayed sexual development in boys and girls. In addition, there was an inverse correlation with free T4 and a positive correlation with TSH.
These results suggest that self-reported neurologic symptoms are associated with cumulative exposure to moderate levels of fumigants and organophosphate and organochlorine insecticides, regardless of recent exposure or history of poisoning.