Bureković A, Terzić M, Alajbegović S, Vukojević Z, Hadzić N.

Clinic of Endocrinology, Diabetes Mellitus and Metabolic Diseases, University of Sarajevo Clinics Centre, Sarajevo, Bosnia and Herzegovina.

Diabetic neuropathy represents late diabetes complications, and diabetes duration and long-term hyperglycemia are the main reasons for polyneuropathy. The goal was to estimate the effects of alpha-lipoic acid on symptoms of diabetic neuropathy after 600 mg i.v. for 3 weeks and 3 months of 300-600 mg of alpha-lipoic acid per os. This study has been designed as a multicentric, in 5-centers in B&H, carried out by 5 physicians with 20 diabetic patients each. Following parameters were monitored in 100 diabetics suffering from Type 1 and Type 2 diabetes, both men and women: diabetes duration, diabetes therapy, duration of polyneuropathy symptoms, height, weight, BMI (body mass index), subjective assessment of patients, objective examinations of physicians and subjective assessment of physicians. 100 diabetics, average age 61,36; oldest 79, youngest 40, suffered from diabetes in average 11,9 years. There were 35 men and 65 women, 16 with Type 1 and 80 with Type 2 diabetes, while 4 patients were not classified. 69 were having insulin therapy and 31 oral hypoglicemics. Shortest diabetic status was less than a year, and longest was 28 years. Average duration of polyneuropathic symptoms was 3,02 years, shortest was less than a year, and the longest was 15 years. Average height was 1,70 m, average weight 76,13 kg, and average BMI 26,51 kg/m2. Significant statistic differences in improvement were recorded (P>0,05) according to Fridman's test for repeated measurements compared to initial findings in assessments: sensory symptoms of polyneuropathy, pain sensations as polyneuropathy symptoms, total score of polyneuropathy symptoms, subjective assessment of patients, subjective findings of physicians, and significant differences were not find (P>0,05) in autonomous and motoric neuropathy. Based on the conducted study, we have concluded that the application of alpha-lipoic acid during 3 months has helped to decrease the symptoms of diabetic neuropathy and in only one case out of 100 included patients there was no subjective improvement after drug application.

Пишут об этом и какие-то калифорнийские нутриционисты с индийскими корнями:
Nutr Rev. 2008 Nov;66(11):646-57.
Alpha-lipoic acid supplementation and diabetes.

Singh U, Jialal I.

Laboratory of Atherosclerosis and Metabolic Research, Department of Pathology and Laboratory Medicine, UC Davis Medical Center, Sacramento, California 95817, USA.

Diabetes is a common metabolic disorder that is usually accompanied by increased production of reactive oxygen species or by impaired antioxidant defenses. Importantly, oxidative stress is particularly relevant to the risk of cardiovascular disease. Alpha-lipoic acid (LA), a naturally occurring dithiol compound, has long been known as an essential cofactor for mitochondrial bioenergetic enzymes. LA is a very important micronutrient with diverse pharmacologic and antioxidant properties. Pharmacologically, LA improves glycemic control and polyneuropathies associated with diabetes mellitus; it also effectively mitigates toxicities associated with heavy metal poisoning. As an antioxidant, LA directly terminates free radicals, chelates transition metal ions, increases cytosolic glutathione and vitamin C levels, and prevents toxicities associated with their loss. These diverse actions suggest that LA acts by multiple mechanisms both physiologically and pharmacologically. Its biosynthesis decreases as people age and is reduced in people with compromised health, thus suggesting a possible therapeutic role for LA in such cases. Reviewed here is the known efficacy of LA with particular reference to types 1 and 2 diabetes. Particular attention is paid to the potential benefits of LA with respect to glycemic control, improved insulin sensitivity, oxidative stress, and neuropathy in diabetic patients. It appears that the major benefit of LA supplementation is in patients with diabetic neuropathy.

Однако, нашел я и результаты контролируемого исследования:
Neurologist. 2007 May;13(3):164-7.
Alpha-lipoic acid may improve symptomatic diabetic polyneuropathy.

Tang J, Wingerchuk DM, Crum BA, Rubin DI, Demaerschalk BM.

Department of Neurology, Mayo Clinic Rochester, Rochester, MN, USA.

OBJECTIVE: In patients with symptomatic diabetic polyneuropathy, is oral alpha-lipoic acid (ALA) effective in improving neuropathic symptoms compared with placebo? METHODS: The question was addressed with a structured evidence-based clinical neurologic practice review via videoconferencing between 3 academic institutions. Participants included consultant and resident neurologists, clinical epidemiologists, medical librarians, and clinical content experts. A critically appraised topic format was employed, with a clinical scenario, structured question, search strategy, appraisal, results, summary of evidence, commentary, and bottom-line conclusions. RESULTS: A single modestly valid randomized controlled trial demonstrated that oral ALA in doses of 600 mg, 1200 mg, and 1800 mg was effective in reducing neuropathic symptoms of diabetic distal symmetric polyneuropathy (DSP) at 5 weeks, as assessed by the Total Symptom Score (>or=50% reduction), with number needed to treat (NNT) (95% CI) of 2.7 (1.8 to 5.8), 4.1 (2.3 to 20.2), and 3.2 (2.0 to 8.6), respectively. Adverse events, including nausea, vomiting, and vertigo, were identified but occurred most frequently with ALA doses of 1200 mg and 1800 mg. Overall, treatment emergent adverse events for ALA 600 mg were not significantly different than placebo, but ALA 1200 mg and 1800 mg had number needed to harm (95% CI) of 4.5 (2.4 to 31.0) and 3.0 (1.9 to 7.1), respectively. CONCLUSION: Oral ALA may improve neuropathic symptoms in diabetic DSP. A single modestly valid RCT demonstrated that 600 mg was an effective and well-tolerated dose, with NNT 2.7 to significantly reduce neuropathic pain symptoms over a 5-week period. ALA's role and place in an algorithm among other commonly prescribed oral treatments for symptomatic relief of neuropathic pain in diabetic DSP remains unclear.
В целом проблема сейчас выглядит так.

И я думаю это в ваших силах, перенести этот подфорум в то место где он должен быть, так как к юриспруденции он отношения не имеет. Заранее спасибо.

http://www.medeffect.ru/endocrin/endo004.shtml