Pyridoxine
Mostrando 1-12 de 133 artigos, teses e dissertações.
-
1. Evaluation of a Graphite-Polyurethane Composite Electrode Modified with Copper Nanoparticles as an Amperometric Flow Detector in a Wall-Jet System for the Determination of Cysteine
A graphite-polyurethane composite electrode (GPUE) was modified by electrodeposition of copper nanoparticles (CuNP) followed by electrochemical treatment in NaOH (GPUE-CuNP), in order to prepare an amperometric sensor for the determination of cysteine (Cys). Cyclic votammograms of Cys solutions at GPUE-CuNP allowed the description of a sequence of electroche
J. Braz. Chem. Soc.. Publicado em: 2020-02
-
2. Diagnosis and Management of Classica Homocystinuria in Brazil: A Summary of 72 Late-Diagnosed Patients
Abstract This study described a broad clinical characterization of classical homocystinuria (HCU) in Brazil. This was a cross-sectional, observational study including clinical and biochemical data from 72 patients (60 families) from Brazil (South, n = 13; Southeast, n = 37; Northeast, n = 8; North, n = 1; and Midwest, n = 1). Parental consanguinity was repor
J. inborn errors metab. screen.. Publicado em: 28/02/2019
-
3. Comparative study of a new alkaline L-methioninase production by Aspergillus ustus AUMC 10151 in submerged and solid-state fermentation
Twenty four fungal species were screened for their ability to produce alkaline L-methioninase on methionine-glucose liquid medium. Aspergillus ustus AUMC 10151 displayed the highest yield of enzyme (10.8 U/mg protein), followed by A. ochraceus and Fusarium proliferatum. Upon optimization of the submerged fermentation (SmF)conditions, the maximum enzyme yield
Braz. arch. biol. technol.. Publicado em: 22/03/2016
-
4. Liver enzymes serum levels in patients with chronic kidney disease on hemodialysis: a comprehensive review
We reviewed the literature regarding the serum levels of the enzymes aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyl transferase in patients with chronic kidney disease on hemodialysis with and without viral hepatitis. Original articles published up to January 2013 on adult patients with chronic kidney disease on hemodialysis were se
Clinics. Publicado em: 2014-04
-
5. Dietary patterns in Brazilian patients with nonalcoholic fatty liver disease: a cross-sectional study
OBJECTIVE: Recent evidence suggests that non-alcoholic fatty liver disease is associated with diet. Our aim was to investigate the dietary patterns of a Brazilian population with this condition and compare them with the recommended diet. METHODS: A cross-sectional study was conducted on 96 non-alcoholic fatty liver disease patients before any dietetic counse
Clinics. Publicado em: 2013-01
-
6. Prophylactic drug management for febrile seizures in children
BACKGROUND Febrile seizures occurring in a child older than one month during an episode of fever affect 2% to 4% of children in Great Britain and the United States and recur in 30%. Rapid-acting antiepileptics and antipyretics given during subsequent fever episodes have been used to avoid the adverse effects of continuous antiepileptic drugs. OBJECTIVE To
Sao Paulo Med. J.. Publicado em: 2013
-
7. Wilson's disease: an analysis of 28 Brazilian children
OBJECTIVES: Clinical-laboratory and evolutionary analysis of twenty-eight patients with Wilson's disease. METHODS: Twenty-eight children (twelve females and sixteen males) with Wilson's disease were evaluated retrospectively between 1987 and 2009, with a follow-up of 72 months (1 - 240 months). The clinical, laboratory, and histologic features at diagnosis w
Clinics. Publicado em: 2012
-
8. Rearing the southern green stink bug using an artificial dry diet and an artificial plant.
Laboratory and greenhouse studies were conducted with an artificial dry diet to rear nymphs, and with an artificial plant as substrate for egg laying by the southern green stink bug, Nezara viridula (L.). The artificial diet was composed of: soybean protein (15 g); potato starch (7.5 g); dextrose (7.5 g); sucrose (2.5 g); cellulose (12.5 g); vitamin mixture
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
9. Potentiometric and conductimetric studies of chemical equilibria for pyridoxine hydrochloride in aqueous solutions: simple experimental determination of pKa values and analytical applications to pharmaceutical analysis
The combination of two low-cost classical procedures based on titrimetric techniques is presented for the determination of pyridoxine hydrochloride in pharmaceuticals samples. Initially some experiments were carried out aiming to determine both pKa1 and pKa2 values, being those compared to values of literature and theoretical procedures. Commercial samples c
Eclética Química. Publicado em: 2010
-
10. Voltammetric determination of pyridoxine (vitamin B6) in drugs using a glassy carbon electrode modified with chromium(III) hexacyanoferrate(II)
Um eletrodo de carbono vítreo modificado com hexacianoferrato(II) de CrIII foi utilizado para a determinação de piridoxina (vitamina B6) em três diferentes fármacos, por voltametria cíclica. A influência de vários parâmetros na resposta voltamétrica do eletrodo foi analisada. A faixa linear encontrada foi de 1,33 × 10-6 mol L-1 a 1,32 × 10-5 mol
Journal of the Brazilian Chemical Society. Publicado em: 2009
-
11. Synthesis and structural analysis of Urânium and Vanadium whit piridoxine derivated ligands. / Síntese e análise estrutural de complexos de Urânio e Vanádio com ligantes derivados da piridoxina.
Uranyl and vanadyl complexes with ligands with oxygen and nitrogen donors atoms have been extensively reviewed and aroused remarkable interest on account their high stability but, a few complexes of piridoxine derived ligands have been reported in the literature. This lack was the inspiration to search new piridoxine derived ligands and uranyl and vanadyl co
Publicado em: 2009
-
12. Flavins promote changes in the extracellular matrix, signal transduction, antioxidant enzymes and metalloproteinases during osteoblast differentiation / Flavinas promovem mudanças na matriz extracelular, vias de transdução de sinal, enzimas antioxidantes e metaloproteinases durante a diferenciação de osteoblastos
Riboflavin (Rb-Vitamin B2) is the precursor of essential flavocoenzymes, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These coenzymes participate in numerous enzymatic processes dependent on electron transfer reactions that occur in energyproducing, biosynthetic, and detoxifying and electron-scavenging pathways. Increase dietary ribofla
Publicado em: 2009