Observational studyNeurology2025
Changes Over 10 Years in Peripheral Nerve Function in People With Well-Controlled Type 2 Diabetes and Those With Normal Glucose Tolerance.
Observational study in Neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesThere is a lack of knowledge on the changes in peripheral nerve function in people with well-controlled, recently diagnosed type 2 diabetes compared with those with normal glucose tolerance (NGT). In this study, we aimed to investigate the natural course of the function of lower extremity small and large nerve fibers in people with NGT and its decline in those with well-controlled type 2 diabetes.
methodsThis prospective observational study assessed changes in nerve function in participants of the German Diabetes Study with recently diagnosed (≤1 year) type 2 diabetes and age-matched and sex-matched individuals with NGT after 5 years and in a larger group of participants with type 2 diabetes after 5 and 10 years. Reference tests of lower extremity peripheral nerve function included peroneal motor nerve conduction velocity (MNCV) and sural sensory nerve conduction velocity (SNCV), sural sensory nerve action potential (SNAP), malleolar vibration perception threshold (VPT), and thermal detection thresholds (TDTs). Data were analyzed using multiple linear or logistic regression analyses.
resultsAt baseline, all 5 nerve function measures showed impairment in the 52 individuals in the diabetes group (33% female, median age 51.7 years) compared with the 52 individuals in the matched NGT group (33% female, median age 51.4 years). After 5 years, 2 nerve indices declined in the diabetes group (peroneal MNCV and VPT) and 3 in the NGT group (peroneal MNCV, VPT, and TDT for cold), with similar 5-year declines observed in both groups after adjustment for baseline values and pairwise matching. In addition, the Neuropathy Disability Score increased in the NGT group but not in the diabetes group. Comparable patterns of decline after 5 and 10 years were found in the larger diabetes cohort of 141 individuals (39% female, median baseline age 53.6 years). The observed 10-year prevalence of abnormal NCVs closely matched estimates based on natural aging-related decline (14.2% vs 12.8% for peroneal MNCV and 30.2% vs 31.0% for sural SNCV). DISCUSSION: These findings suggest that nerve function deterioration in well-controlled type 2 diabetes is primarily influenced by nerve function status at diagnosis and physiologic aging, rather than diabetes-related progression.
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