PMID- 30311825 OWN - NLM STAT- MEDLINE DCOM- 20190122 LR - 20221207 IS - 1557-7600 (Electronic) IS - 1096-620X (Linking) VI - 21 IP - 12 DP - 2018 Dec TI - Effects of alpha-Lipoic Acid, Carnosine, and Thiamine Supplementation in Obese Patients with Type 2 Diabetes Mellitus: A Randomized, Double-Blind Study. PG - 1197-1203 LID - 10.1089/jmf.2018.0007 [doi] AB - Type 2 diabetes mellitus (T2DM) is evolving to an epidemic of the modern world. T2DM is associated with a number of pathological complications, including cardiovascular disease that is mostly promoted by the increased oxidative stress in type 2 diabetic patients. We performed a randomized double-blind placebo-controlled trial to investigate the effectiveness of an individualized oral supplementation with alpha-lipoic acid (ALA), carnosine, and thiamine. For that purpose, 82 obese type 2 diabetic patients were randomly assigned to 2 groups, and were either supplemented daily with 7 mg ALA/kg body weight, 6 mg carnosine/kg body weight, and 1 mg thiamine/kg body weight or placebo for 8 weeks. An array of biochemical tests including the estimation of oxidative stress and platelet aggregation were performed at baseline and at follow-up. Moreover, the antiplatelet activity of each of the supplement's components was determined ex vivo at human and washed rabbit platelets. Glucose and HbA(1c) levels were significantly reduced after supplementation (135.7 +/- 19.5 mg/dL vs. 126.5 +/- 16.8 mg/dL and 8.3% +/- 0.3% vs. 6.03% +/- 0.58%, respectively, P < .05); however, insulin was significantly increased (3.6 +/- 0.7 muIU/mL vs. 6.8 +/- 0.2 muIU/mL, P < .05). The patients treated with the supplement recorded higher follow-up values for HOMA-IR and HOMA-beta, and a significant drop in serum hydroperoxide level. Only ALA inhibited platelets aggregation ex vivo through ADP, platelet activating factor, arachidonic acid, epinephrine, collagen, and thrombin pathways. Daily supplementation with an individualized ALA, carnosine, and thiamine supplement effectively reduced glucose concentration in type 2 diabetic patients, probably by increasing insulin production from the pancreas. In addition to that, the reduction of oxidative stress and inhibition of platelet aggregation could potentially provide greater cardiovascular protection. Further studies are needed to fine-tune the supplementation dose-response effects in T2DM patients. FAU - Karkabounas, Spyridon AU - Karkabounas S AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . FAU - Papadopoulos, Nikolaos AU - Papadopoulos N AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . FAU - Anastasiadou, Chryssa AU - Anastasiadou C AD - 2 Hellenic Agricultural Organization, Fisheries Research Institute , Kavala, Greece . FAU - Gubili, Chrysoula AU - Gubili C AD - 2 Hellenic Agricultural Organization, Fisheries Research Institute , Kavala, Greece . FAU - Peschos, Dimitrios AU - Peschos D AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . FAU - Daskalou, Telemachos AU - Daskalou T AD - 3 Department of Haematology, Sismanogleio Hospital , Athens, Greece . FAU - Fikioris, Nikolaos AU - Fikioris N AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . FAU - Simos, Yannis V AU - Simos YV AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . FAU - Kontargiris, Evangelos AU - Kontargiris E AD - 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece . AD - 4 Department of Nursing, Epirus Institute of Technology (T.E.I. of Epirus) , Ioannina, Greece . FAU - Gianakopoulos, Xenophon AU - Gianakopoulos X AD - 5 Department of Urology, University Hospital of Ioannina , Ioannina, Greece . FAU - Ragos, Vasilios AU - Ragos V AD - 6 Clinic of Maxillofacial Surgery, Medical Department; University of Ioannina , Ioannina, Greece . FAU - Chatzidimitriou, Maria AU - Chatzidimitriou M AD - 7 Medical Laboratories, Alexander Technological Institute of Thessaloniki , Thessaloniki, Greece . LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20181011 PL - United States TA - J Med Food JT - Journal of medicinal food JID - 9812512 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 73Y7P0K73Y (Thioctic Acid) RN - 8HO6PVN24W (Carnosine) RN - X66NSO3N35 (Thiamine) SB - IM MH - Administration, Oral MH - Blood Glucose/metabolism MH - Carnosine/administration & dosage/therapeutic use MH - Diabetes Mellitus, Type 2/blood/*prevention & control MH - *Dietary Supplements MH - Double-Blind Method MH - Female MH - Glycated Hemoglobin/metabolism MH - Humans MH - Male MH - Middle Aged MH - *Obesity, Morbid MH - Surveys and Questionnaires MH - Thiamine/administration & dosage/therapeutic use MH - Thioctic Acid/administration & dosage/therapeutic use MH - Treatment Outcome EDAT- 2018/10/13 06:00 MHDA- 2019/01/23 06:00 CRDT- 2018/10/13 06:00 PHST- 2018/10/13 06:00 [pubmed] PHST- 2019/01/23 06:00 [medline] PHST- 2018/10/13 06:00 [entrez] AID - 10.1089/jmf.2018.0007 [doi] PST - ppublish SO - J Med Food. 2018 Dec;21(12):1197-1203. doi: 10.1089/jmf.2018.0007. Epub 2018 Oct 11.