View Entire Collection
By Clinical Topic
By State Requirement
Diabetes – Summer 2012
Future of Nursing Initiative
Heart Failure - Fall 2011
Influenza - Winter 2011
Nursing Ethics - Fall 2011
Trauma - Fall 2010
Traumatic Brain Injury - Fall 2010
Fluids & Electrolytes
FRIDAY, April 27 (HealthDay News) -- Early axonal dysfunction may be detected prior to the development of clinical symptoms of diabetic neuropathy, according to a study published online April 20 in Diabetes.
Jia-Ying Sung, M.D., of Wan Fang Hospital in Taipei, Taiwan, and colleagues conducted a study involving 56 patients with type 2 diabetes without neuropathy and 52 patients with diabetes and neuropathy to evaluate (using nerve excitability techniques) whether diabetic neuropathy is associated with changes in peripheral axonal function. Patients with neuropathy were further categorized according to severity into grade 0, 1, and 2/3.
Compared with age-matched controls, the researchers found that patients with type 2 diabetes but no clinical symptoms of neuropathy displayed significantly increased threshold, prolonged latency, and changes in excitability parameters. Significant alteration was seen in recovery cycle parameters and depolarizing threshold electrotonus in patients with neuropathy. For patients without neuropathy, glycated hemoglobin levels correlated significantly with latency and subexcitability, while superexcitability correlated with the estimated glomerular filtration rate in those with neuropathy. As the severity of neuropathy increased, nerve excitability parameters became more abnormal.
"These results suggest a spectrum of excitability abnormalities in patients with diabetes and that early axonal dysfunction may be detected prior to the development of neuropathy," the authors write. "As progressive changes in excitability parameters correlated to neuropathy severity, excitability testing may provide a biomarker of the early development and severity of diabetic neuropathy, providing insights into the pathophysiological mechanisms producing axonal dysfunction."
Full Text (subscription or payment may be required)
Sign up for our free enewsletters to stay up-to-date in your area of practice - or take a look at an archive of prior issues
Join our CESaver program to earn up to 100 contact hours for only $34.95
Explore a world of online resources
Back to Top