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Diabetic distal symmetrical polyneuropathy (DSPN) can be categorized as small fibre, large fibre, and mixed neuropathy. Even though small fibre neuropathy is the most prevalent, unfortunately it is usually not recognized by routine electrophysiologic studies. In this study, we intend to examine the slow velocity small fibres responsible for small fibre DSPN, by isolating them using collision technique principle in patients with diabetes.This is an observational case-control study designed to compare nerve conduction values with application of collision technique in 60 patients with T2D and in 60 age and sex matched controls.The collision study in patients with Type 2 Diabetes showed mean Latency of 10.5 ± 1.7 ms and mean Amplitude of 3.4 ± 2.3 mV on the right side and mean Latency of 10.5 ± 1.7 ms and the mean Amplitude of 3.5 ± 2.2 mV on the left side. There was a statistically significant difference (Collision study helps to examine the slower conducting fibres of the larger nerves. Our study suggests that the Collision Technique can be used to identify early peripheral neuropathy regardless of the diabetes status, thus making it more practically feasible and cost-effective.

Objectives: People with epilepsy have greater cognitive and behavioral dysfunction than the general population. There is no specific treatment available for cognitive impairment of these patients. We aimed to evaluate the effects of memantine, an N-methyl-D-aspartate-type glutamate receptor noncompetitive antagonist, on improving cognition and memory functions in epileptic patients with cognitive and memory impairment, who received anti-epileptic drugs (AEDs). Methods: We did a randomized, double-blind, placebo-controlled parallel group trial, in SRM Medical College Hospital and Research Centre, Kattankulathur, Kancheepuram, Tamil Nadu, India between April 2013 and September 2013. Fifty-nine epileptic patients taking AEDs with subjective memory complaints were recruited and randomized to either Group 1 to receive 16 weeks of once-daily memantine, (5 mg for first 8 weeks, followed by memantine 10 mg for next 8 weeks) or Group 2 to receive once daily placebo. This trial is registered with Clinical Trial Registry of India CTRI/2013/04/003573. Results: Of 59 randomized patients, 55 patients completed the study (26 memantine and 29 placebo). Memantine group showed statistically significant improvement in total mini mental state examination score from baseline (P = 0.765) to 16 th week (P < 0.001) in comparison with the placebo. The Weshler′s Memory Scale total score in memantine group improved significantly after 8 weeks (P = 0.002) compared with baseline (P = 0.873) and highly significant at the end of 16 th week (P < 0.001). The self-rated quality of life and memory in memantine group also significantly improved at the study end. Conclusion: We conclude that once-daily memantine (10 mg) treatment significantly improved cognition, memory and quality of life in epileptic patients with mild to moderate cognitive impairment and was found to have a favorable safety profile.