Randy:  A few studies showing neurotoxicity of neonics at "sublethal" levels:

de Almeida Rossi, Caroline, et al. "Brain Morphophysiology of Africanized Bee Apis mellifera Exposed to Sublethal Doses of Imidacloprid." Archives of environmental contamination and toxicology (2013): 1-10

Oliveira, Regiane Alves, et al. "Side-effects of thiamethoxam on the brain and midgut of the africanized honeybee Apis mellifera (Hymenopptera: Apidae)." Environmental toxicology (2013)

van der Sluijs, Jeroen P., et al. "Neonicotinoids, bee disorders and the sustainability of pollinator services." Current Opinion in Environmental Sustainability (2013)

Hatjina, Fani, et al. "Sublethal doses of imidacloprid decreased size of hypopharyngeal glands and respiratory rhythm of honeybees in vivo." Apidologie (2013): 1-14

And in answer to your question about neuroregeneration:  Only olfactory neurons are known to regenerate in humans.  The human nervous system has a large number of differently specialized "glial" neurons that are supportive in function rather than neurotransmitting, some of these have limited regenerative ability.  There has been some recent work suggesting that neuronal stem cell populations exist, but they offer limited regenerative capacity if they exist (still under debate).

Any other "regeneration" of neurons you read about applies to axons only. Once the cell body is dead, no new neuron replaces that dead neuron.?

Christina

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html