that has come out on "pre-diabetic"/impaired glucose tolerance neuropathy over the past decade or so:
http://www.neurologyreviews.com/may06/neuropathy.html
http://care.diabetesjournals.org/cgi...full/24/8/1448
http://www.jabfm.org/cgi/reprint/17/2/127.pdf
http://care.diabetesjournals.org/cgi...full/29/6/1294
http://www.neurology.org/cgi/content/abstract/60/1/108
I've tried to rebuild my database of info about this (and other aspects of neuropathy) since the BT database problems, and been relatively successful in this area--the studies are not hard to find as this has been an area of burgeoning research.
It's all the more reason for healthy lifestyle changes to forestall neuropathic symptoms before they happen.