Patients with rheumatoid arthritis have subnormal vitamin B6 status, both quantitatively and functionally. Abnormal vitamin B6 status in rheumatoid arthritis has been associated with spontaneous tumor necrosis factor (TNF)-alpha production and markers of inflammation, including C-reactive protein and erythrocyte sedimentation rate. Impaired vitamin B6 status could be a result of inflammation, a...

Dispersive liquid-liquid microextraction method (DLLME) combined with high-performance liquid chromatography-ultraviolet detection (HPLC-UV) was used to determine thiamine (B1), nicotinamide (B3) and pyridoxine (B6) in sour cherry juice. This method was rapid, simple and sensitive. Separation was accomplished using a C18 column. The optimum chromatographic conditions were found to be: mobile ph...

how to cite this article: talebian a, goudarzi rm, mohammadzadeh m , mirzadeh as. vincristine-induced cranial neuropathy. iran j child neurol. 2014 winter; 8(1):66-68.   abstract vincristine (vcr) is a vinca alkaloid that is used for treatment of many malignancies. the vinca alkaloids are neurotoxic, usually causing a peripheral neuropathy, but cranial neuropathies are rare as side effects.  de...

A recipe and technology for the production of fortified biscuits have been developed consumers with a predisposition to disruption folate cycle based on gene polymorphism rs1801133 MTHFR 677C> T, rs1805087 MTR 2756A> G, rs1801394 MTRR 66A> G. Enrichment product active forms vitamins B6, B9, B12 (pyridoxine, methylfolate, methylcobalamin) made it possible increase biological value product. As re...

Pyridoxine reaction with (1)O(2) in aqueous solution at neutral pH resulted in oxidation at the 2- and 6-positions of the pyridine ring and unprecedented ring contraction. Kinetic and low temperature studies provided observable intermediates by NMR spectroscopy. In addition, novel cycloaddition between pyridoxine and N-methylmaleimide, without N-alkylation and in water, suggest a common [3 + 2]...

This study was performed to examine the effect of dietary level of vitamin B6 on the concentrations of carnosine and anserine, antioxidants, in the heart of rats. Analysis using UPLC-MS/MS showed that the concentrations of these dipeptides in the 7 and 35 mg pyridoxine HCl/kg groups were significantly higher than those in the 1 mg pyridoxine HCl/kg group, implying the novel role of dietary vita...

Vitamins are widely used as a prescription medicine. The aim of the study is to prepare pyridoxine HCl tablets (200 mg) using direct compression technique which is now a days considered a cost effective and simple method of formulation. It can be considered as an appropriate method for hygroscopic and thermolabile substances. In the present study new formulations of Pyridoxine HCl was manufactu...

Extracts of rabbit liver and brain are known (1, 2) to oxidize pyridoxine 5-phosphate to pyridoxal 5-phosphate much faster than they oxidize free pyridoxine to pyridoxal. Comparison of the two activities during limited purification indicated that different enzymes catalyzed the two reactions (1). Pogell (3) had shown previously that oxidation of pyridoxamine 5-phosphate was catalyzed by an enzy...

Xanthurenic acid, an abnormal metabolite of tryptophan (1, 2), which is pro duced in pyridoxine-deficient rats, is said to cause diabetes mellitus (3). In our laboratory Lin et al. (4) suggested that the deficiency of pyridoxine alone for a long time might cause, independently of the diabetogenic action of xanthurenic acid, abnormal carbohydrate metabolism leading to continuous hyperglycemia. T...