Alpha Lipoic Acid
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Antioxidant action of alpha lipoic acid on the testis and epididymis of diabetic rats: morphological, sperm and immunohistochemical evaluation
ABSTRACT Introduction Chronic hyperglycemia is caused by diabetes mellitus-committed genital morphophysiology, and oxidative stress is one of the main factors involved in this process. Alpha lipoic acid (ALA) can prevent metabolic and morphological changes in diabetic individuals. Objectives In present study, we evaluated the effects of regular ALA consu
Int. braz j urol.. Publicado em: 02/09/2019
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2. Growth performance, intestinal morphology, and meat quality in relation to alpha-lipoic acid associated with vitamin C and E in broiler chickens under tropical conditions
ABSTRACT This study was conducted to examine the effect of alpha-lipoic acid with vitamin C and E on growth performance, intestinal morphology, and meat quality in broiler chickens under tropical conditions. A total of 288 one-day-old male ROSS 308 chicks (40±0.1 g) were used in a completely randomized design and allotted to one of six dietary treatments to
R. Bras. Zootec.. Publicado em: 2016-03
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3. Epigallocatechin-3-gallate combined with alpha lipoic acid attenuates high glucose-induced receptor for advanced glycation end products (RAGE) expression in human embryonic kidney cells
Os efeitos antioxidantes de galato de epigalocatequina (EGCG) e ácido alfa lipóico (ALA) foram demonstrados em estudos anteriores. Os efeitos renais da proteção de EGCG e ALA em pacientes com lesão renal ainda estão sob investigação. A finalidade deste estudo é investigar os efeitos anti-inflamatórios e antioxidantes de EGCG e ALA em lesão de cél
An. Acad. Bras. Ciênc.. Publicado em: 17/06/2013
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4. Searching of protein targets for alpha lipoic acid
Ácido alfa lipóico (ALA) é um dos oxidantes mais poderosos e um cofactor em complexos enzimáticos, apesar de seus mecanismos ainda não serem conhecidos. A pesquisa por alvos proteicos de ALA é fundamental para compreender seus processos de sinalização. Uma abordagem bioinformática foi usada a fim de se encontrar alvos hipotéticos para ALA usando o
J. Braz. Chem. Soc.. Publicado em: 2011-12
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5. Burning mouth syndrome: double-blind placebo-controlled crossover trial of effectiveness of alpha lipoic acid and taste evaluation / Síndrome de ardência bucal: estudo duplo cego cruzado placebo-controlado da efetividade do ácido alfa-lipóico sobre a sintomatologia e avaliação da função gustatória
A síndrome de ardência bucal (SAB) é uma condição crônica, caracterizada por sensação de ardor bucal sem alterações clinicamente detectáveis. Afeta predominantemente mulheres no período pós-menopausa e sua terapêutica ainda não está estabelecida. Pelo menos dois terços destes pacientes apresentam queixa subjetiva de disgeusia como sintoma se
Publicado em: 2008
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6. Efeito do ácido lipóico sobre parâmetros de estresse oxidativo em indivíduos traço falciformes ou pacientes falciformes / Alpha lipoic acid effect on oxidative stress parameters in sickle cell trait subjects and sickle cell patients
A anemia falciforme (AF) é causada por uma mutação (Glu6Val) no gene que codifica a b-globina gerando a hemoglobina S (HbS). A HbS tem a tendência a se polimerizar quando desoxigenada. Isto resulta em graves manifestações clínicas para o indivíduo homozigoto (HbSS). O traço falciforme (HbAS), geralmente assintomático, também pode apresentar dano o
Publicado em: 2008
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7. Possible involvement of lipoic acid in binding protein-dependent transport systems in Escherichia coli.
We describe the properties of the binding protein dependent-transport of ribose, galactose, and maltose and of the lactose permease, and the phosphoenolpyruvate-glucose phosphotransferase transport systems in a strain of Escherichia coli which is deficient in the synthesis of lipoic acid, a cofactor involved in alpha-keto acid dehydrogenation. Such a strain
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8. Mutants of Escherichia coli K-12 that are resistant to a selenium analog of lipoic acid identify unknown genes in lipoate metabolism.
Lipoic acid is a disulfide-containing cofactor required for the reactions catalyzed by alpha-ketoacid dehydrogenase enzyme complexes. We report the chemical synthesis and biological properties of lipoic acid analogs in which one or both sulfur atoms were replaced by selenium. Replacement of either the C-6 or the C-8 sulfur atom with selenium results in lipoi
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9. Lipoic acid metabolism in Escherichia coli: sequencing and functional characterization of the lipA and lipB genes.
Two genes, lipA and lipB, involved in lipoic acid biosynthesis or metabolism were characterized by DNA sequence analysis. The translational initiation site of the lipA gene was established, and the lipB gene product was identified as a 25-kDa protein. Overproduction of LipA resulted in the formation of inclusion bodies, from which the protein was readily pur
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10. X-ray structure determination at 2.6-A resolution of a lipoate-containing protein: the H-protein of the glycine decarboxylase complex from pea leaves.
H-protein, a lipoic acid-containing protein of the glycine decarboxylase (EC 1.4.4.2) complex from pea (Pisum sativum) was crystallized from ammonium sulfate solution at pH 5.2 in space group P3(1)21. The x-ray crystal structure was determined to 2.6-A resolution by multiple isomorphous replacement techniques. The structure was refined to an R value of 23% f
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11. Physicochemical Characteristics, Cytotoxicity, and Antioxidant Activity of Three Lipid Nanoparticulate Formulations of Alpha-lipoic Acid
Exogenously supplied alpha-lipoic acid (LA) has proven to be effective as an antioxidant. In an effort to develop a water-soluble formulation for topical administration, LA was formulated in the form of solid lipid nanoparticles (SLN), nanostructure lipid carriers (NLC), and nanoemulsion (NE) and characterized in terms of physical and biological properties.
Springer US.
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12. Purification and partial characterization of the glycine decarboxylase multienzyme complex from Eubacterium acidaminophilum.
The proteins P1, P2, and P4 of the glycine cleavage system have been purified from the anaerobic, glycine-utilizing bacterium Eubacterium acidaminophilum. By gel filtration, these proteins were determined to have Mrs of 225,000, 15,500, and 49,000, respectively. By sodium dodecyl sulfate-polyacrylamide gel electrophoresis, protein P1 was determined to have t