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Vincenza Spallone
Despite the high prevalence and impact on quality of life, costs and survival, there are still unresolved issues regarding diabetic polyneuropathy (DPN): the lack of definite knowledge of its pathogenesis; the limited preventive action of glycaemic control in type 2 diabetes; and the unavailability of effective evidence-based disease-modifying treatment. How can genetics provide the tools to address these gaps? Ziegler et al for the GDS Group explore the novel hypothesis that genetic variability in transketolase (TKT) might contribute to susceptibility to DPN in patients with newly diagnosed type 1 and type 2 diabetes (well characterised for DPN)...
December 29, 2016: Diabetes/metabolism Research and Reviews
Nataliia Markova, Nataliia Bazhenova, Daniel C Anthony, Julie Vignisse, Andrey Svistunov, Klaus-Peter Lesch, Lucien Bettendorff, Tatyana Strekalova
Thiamine (vitamin B1) deficiency in the brain has been implicated in the development of dementia and symptoms of depression. Indirect evidence suggests that thiamine may contribute to these pathologies by controlling the activities of glycogen synthase kinase (GSK)-3β. While decreased GSK-3β activity appears to impair memory, increased GSK-3β activity is associated with the distressed/depressed state. However, hitherto direct evidence for the effects of thiamine on GSK-3β function has not been reported...
April 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
Wan-Su Park, Jongtae Lee, Taegon Hong, Gabjin Park, Sunil Youn, Youngwhan Seo, Sanghun Lee, Seunghoon Han
PURPOSE: Fursultiamine and benfotiamine are lipophilic thiamine derivatives used as oral sources of thiamine. Although there are many publications on the pharmacokinetic (PK) properties of thiamine-containing products, no direct comparisons between these agents . We aimed to compare the PK profiles of these lipophilic thiamine derivatives and to compare the extent of the increase in bioavailability to that of naïve thiamine. METHODS: Two randomized, single-dose, 2-way crossover, full PK studies were conducted in healthy Korean male subjects (n = 24 per group)...
October 2016: Clinical Therapeutics
Ahmed Salah Fayed, Maha Abdel-Monem Hegazy, Nada Sayed Abdel Wahab
New, simple, highly sensitive, precise, and accurate gradient reversed-phase chromatographic methods were developed using HPLC and ultra-HPLC (UPLC) systems for the determination of five components, namely thiamine, pyridoxine, cyanocobalamin, benfotiamine, and diclofenac in tablets and capsules. The methods were compared for their efficiency in the separation and determination of these five compounds using two different C18 columns (250 × 4.6 mm, 5 μm; and 100 × 4.6 mm, 2.6 μm) for HPLC and UPLC, respectively...
November 1, 2016: Journal of AOAC International
Xiaoli Pan, Zhichun Chen, Guoqiang Fei, Shumei Pan, Weiqi Bao, Shuhua Ren, Yihui Guan, Chunjiu Zhong
To date, we still lack disease-modifying therapies for Alzheimer's disease (AD). Here, we report that long-term administration of benfotiamine improved the cognitive ability of patients with AD. Five patients with mild to moderate AD received oral benfotiamine (300 mg daily) over 18 months. All patients were examined by positron emission tomography with Pittsburgh compound B (PiB-PET) and exhibited positive imaging with β-amyloid deposition, and three received PiB-PET imaging at follow-up. The five patients exhibited cognitive improvement as assayed by the Mini-Mental Status Examination (MMSE) with an average increase of 3...
December 2016: Neuroscience Bulletin
Niloy Bhattacharjee, Sujata Barma, Nandita Konwar, Saikat Dewanjee, Prasenjit Manna
Diabetic nephropathy (DN), a chronic complication of diabetes, is charecterized by glomerular hypertrophy, proteinuria, decreased glomerular filtration, and renal fibrosis resulting in the loss of renal function. Although the exact cause of DN remains unclear, several mechanisms have been postulated, such as hyperglycemia-induced renal hyper filtration and renal injury, AGEs-induced increased oxidative stress, activated PKC-induced increased production of cytokines, chemokines, and different inflammatory and apoptotic signals...
November 15, 2016: European Journal of Pharmacology
Guilherme Vannucchi Portari, Paula Payão Ovidio, Rafael Deminice, Alceu Afonso Jordão
AIMS: The aim of this study was to evaluate possible beneficial effects of treatment with thiamine or benfotiamine in an animal model of acute ethanol intoxication. MAIN METHODS: Thirty male Wistar rats were separated at random into three groups of 10 animals each: Ethanol (E), Ethanol treated with thiamine (T) and Ethanol treated with benfotiamine (BE). Rats were gavaged with single dose of ethanol (5g/kg, 40% v:v). After 30min of ethanol gavage the animals were treated with thiamine or benfotiamine...
October 1, 2016: Life Sciences
Devi Dayal, Dhaarani Jayaraman, Naveen Sankhyan, Pratibha Singhi
Acute Painful Diabetic Neuropathy (APDN) is a reversible neuropathy that occurs in patients with diabetes usually after a fast improvement in glycaemic control. The condition is extremely rare in children with Type 1 Diabetes (T1D). We describe a 12-year-old girl T1D who developed APDN shortly after diagnosis of T1D. Neurological examination and nerve conduction studies showed severe asymmetric lower limb sensorimotor neuropathy. She was treated with carbamazepine, benfotiamine (vitamin B1 analogue), and NSAID analgesics and showed complete recovery 9 months after the onset...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
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No abstract text is available yet for this article.
May 5, 2016: New England Journal of Medicine
Antonio Nenna, Francesco Nappi, Sanjeet Singh Avtaar Singh, Fraser W Sutherland, Fabio Di Domenico, Massimo Chello, Cristiano Spadaccio
CONTEXT: Advanced Glycation End-Products (AGEs) are signaling proteins associated to several vascular and neurological complications in diabetic and non-diabetic patients. AGEs proved to be a marker of negative outcome in both diabetes management and surgical procedures in these patients. The reported role of AGEs prompted the development of pharmacological inhibitors of their effects, giving rise to a number of both preclinical and clinical studies. Clinical trials with anti-AGEs drugs have been gradually developed and this review aimed to summarize most relevant reports...
May 2015: Research in Cardiovascular Medicine
Iva Bozic, Danijela Savic, Ivana Stevanovic, Sanja Pekovic, Nadezda Nedeljkovic, Irena Lavrnja
Chronic microglial activation and resulting sustained neuroinflammatory reaction are generally associated with neurodegeneration. Activated microglia acquires proinflammatory cellular profile that generates oxidative burst. Their persistent activation exacerbates inflammation, which damages healthy neurons via cytotoxic mediators, such as superoxide radical anion and nitric oxide. In our recent study, we have shown that benfotiamine (S-benzoylthiamine O-monophosphate) possesses anti-inflammatory effects. Here, the effects of benfotiamine on the pro-oxidative component of activity of LPS-stimulated BV-2 cells were investigated...
2015: Frontiers in Cellular Neuroscience
S Javed, U Alam, R A Malik
The rise in the global burden of diabetes is spurring an increase in the prevalence of its complications. Diabetic peripheral neuropathy (DPN) is a common and devastating complication of diabetes, with multiple clinical manifestations. The most common is a symmetrical length-dependent dysfunction and damage of peripheral nerves. The management of DPN rests on three tenets: intensive glycaemic control, even though the evidence of benefit is questionable in people with type 2 diabetes; pathogenetic therapies; and symptomatic treatment...
December 2015: Diabetes, Obesity & Metabolism
Zhen Zhu, Gyula Varadi, Stephen G Carter
AIMS: Accumulation of advanced glycation endpoints is a trigger to the development of diabetic peripheral neuropathy, which is a common complication of diabetes. Oral administration of benfotiamine (BFT) has shown some preclinical and clinical promise as a treatment for diabetic peripheral neuropathy. The purpose of this study was to evaluate the method of transdermal delivery of BFT as a possible, viable route of administration for the treatment of diabetic peripheral neuropathy. METHODS: A single application of 10 mg of BFT was given to guinea pigs topically...
April 2016: Acta Diabetologica
Krishnamurti Dakshinamurti
A cluster of inter-related conditions such as central obesity, dyslipidemia, impaired glucose metabolism, and hypertension is referred to as Metabolic Syndrome, which is a risk factor for the development of type-2 diabetes. The micro- and macro-vascular complications of diabetes contribute to its morbidity and mortality. In addition to its calcitropic effect, vitamin D is a regulator of gene expression as well as cell proliferation and differentiation. Various cross-sectional and longitudinal cohort studies have indicated a beneficial effect from vitamin D supplementation on the development of type-2 diabetes...
May 2015: Canadian Journal of Physiology and Pharmacology
Ann M Manzardo, Tiffany Pendleton, Albert Poje, Elizabeth C Penick, Merlin G Butler
BACKGROUND: Severe alcoholism can be associated with significant nutritional and vitamin deficiency, especially vitamin B1 (thiamine) which is associated with neurological deficits impacting mood and cognition. Alcohol consumption was reduced among female but not male alcoholics after supplementation with the high potency thiamine analog benfotiamine (BF). We examined the relationship between lifetime alcoholism severity, psychiatric symptoms and response to BF among the alcohol dependent men from this cohort...
July 1, 2015: Drug and Alcohol Dependence
Naomi Sugimori, J Luis Espinoza, Ly Quoc Trung, Akiyoshi Takami, Yukio Kondo, Dao Thi An, Motoko Sasaki, Tomohiko Wakayama, Shinji Nakao
Benfotiamine is a synthetic thiamine analogue that stimulates transketolase, a cellular enzyme essential for glucose metabolism. Currently, benfotiamine is used to treat diabetic neuropathy. We recently reported that oral benfotiamine induced a temporary but remarkable recovery from acute myeloid leukemia in an elderly patient who was ineligible for standard chemotherapy due to dementia and renal failure. In the present study we present evidences that benfotiamine possess antitumor activity against leukemia cells...
2015: PloS One
Sandra Müller-Krebs, Katharina Nissle, Julia Tsobaneli, Martin Zeier, Lars Philipp Kihm, Zoltan Kender, Thomas Fleming, Peter Paul Nawroth, Jochen Reiser, Vedat Schwenger
BACKGROUND: In peritoneal dialysis (PD), residual renal function (RRF) fundamentally contributes to improved quality of life and patient survival. High glucose and advanced glycation end-products (AGE) contribute locally to peritoneal and systemically to renal damage. Integrity of podocyte structure and function is of special importance to preserve RRF. Benfotiamine could counteract the glucose and AGE-mediated toxicity by blocking hyperglycemia-associated podocyte damage via the pentose-phosphate pathway...
2015: Frontiers in Medicine
Iva Bozic, Danijela Savic, Danijela Laketa, Ivana Bjelobaba, Ivan Milenkovic, Sanja Pekovic, Nadezda Nedeljkovic, Irena Lavrnja
Microglial cells are resident immune cells of the central nervous system (CNS), recognized as key elements in the regulation of neural homeostasis and the response to injury and repair. As excessive activation of microglia may lead to neurodegeneration, therapeutic strategies targeting its inhibition were shown to improve treatment of most neurodegenerative diseases. Benfotiamine is a synthetic vitamin B1 (thiamine) derivate exerting potentially anti-inflammatory effects. Despite the encouraging results regarding benfotiamine potential to alleviate diabetic microangiopathy, neuropathy and other oxidative stress-induced pathological conditions, its activities and cellular mechanisms during microglial activation have yet to be elucidated...
2015: PloS One
Maha A Hegazy, Nada S Abdelwahab, Ahmed S Fayed
A novel method was developed for spectral resolution and further determination of five-component mixture including Vitamin B complex (B1, B6, B12 and Benfotiamine) along with the commonly co-formulated Diclofenac. The method is simple, sensitive, precise and could efficiently determine the five components by a complementary application of two different techniques. The first is univariate second derivative method that was successfully applied for determination of Vitamin B12. The second is Multivariate Curve Resolution using the Alternating Least Squares method (MCR-ALS) by which an efficient resolution and quantitation of the quaternary spectrally overlapped Vitamin B1, Vitamin B6, Benfotiamine and Diclofenac sodium were achieved...
April 5, 2015: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Amit D Raval, Divyesh Thakker, Arohi N Rangoonwala, Deval Gor, Rama Walia
BACKGROUND: Diabetes is a leading cause of end-stage kidney disease (ESKD) mainly due to development and progression of diabetic kidney disease (DKD). In absence of definitive treatments of DKD, small studies showed that vitamin B may help in delaying progression of DKD by inhibiting vascular inflammation and endothelial cell damage. Hence, it could be beneficial as a treatment option for DKD. OBJECTIVES: To assess the benefits and harms of vitamin B and its derivatives in patients with DKD...
2015: Cochrane Database of Systematic Reviews
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