Aminoacid
Mostrando 13-24 de 2442 artigos, teses e dissertações.
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13. The effects of nitric oxide on the immune response during giardiasis
Nitric oxide (NO) is a free radical synthesized from L-arginine by different isoforms NO-synthases. NO possesses multiple and complex biological functions. NO is an important mediator of homeostasis, and changes in its generation or actions can contribute or not to pathological states. The knowledge of effects of NO has been not only important to our underst
Brazilian Journal of Infectious Diseases. Publicado em: 2010-12
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14. Análise de expressão e splicing alternativo do gene Mdh-1 de Apis mellifera L. (Hymenoptera: Apidae)
Mdh-1 enzyme locus coding for cytoplasmic malate dehydrogenase has three common alleles Mdh-1100 (F), Mdh-180 (M) e Mdh-165 (S) and it has been extensively used as racial marker in populational studies of Apis mellifera. Additional isoforms are detected by electrophoretic analysis during ontogenetic development of A. mellifera, indicating differential expres
Publicado em: 2010
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15. AÃÃo antibacteriana antifÃngica e antiparasitÃria de veneno de serpentes do gÃnero Bothrops e suas fraÃÃes fosfolipase A2 e L-AminoÃcido oxidase / Antibacterial, antifungal and antiparasitary action of Bothrops venoms and their fractions phospholipase A2 and L-aminoacid oxidase
Snakes venoms contain biologically active substances primarily consisting of proteins (90-95%). Some of these present enzymatic activities, such as phospholipases A2 and the L-amino acid oxidases. In this study we verify the action of Bothrops leucurus (BleuTV) and Bothrops marajoensis (BmarTV) venoms, and fractions PLA2 (BleuPLA2 and BmarPLA2) and LAAO (Ble
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2009
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16. Hb H disease resulting from the association of an αº-thalassemia allele [-(α)20.5] with an unstable α-globin variant [Hb Icaria]: first report on the occurrence in Brazil
Hb H Disease is caused by the loss or inactivation of three of the four functional a-globin genes. Patients present chronic hemolytic anemia and splenomegaly. In some cases, occasional blood transfusions are required. Deletions are the main cause of this type of thalassemia (α-thalassemia). We describe here an unusual case of Hb H disease caused by the comb
Genetics and Molecular Biology. Publicado em: 04/09/2009
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17. Efeito da adição de precursores na produção de alcaloide anticancerígeno usando a técnica de planejamento experimental
The effect of precursors on the anticancer alkaloid production by submerged fermentation using M. anisopliae 3935 was studied, according to complete experimental design 2² with three central points. The results showed that lysine was the most important variable, however, when both lysine and glucose were added to the fermentation medium, the alkaloid produc
Química Nova. Publicado em: 2009
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18. Structural and metabolic reorganization of the gut during the fasting and seasonal dormancy in tegu lizards Tupinambis merianae / Reorganização estrutural e metabólica do intestino associada ao jejum e dormência sazonal em lagartos teiú Tupinambis merianae
The gut phenotypic plasticity is widely documented in the vertebrates and would allow to either short term or anticipatory adjustments in the organ functional capacity, to cope with unpredictable and periodic changes of food availability in the environment. This study investigates seasonal changes of morphology and in the capacity for substrate oxidation in
Publicado em: 2009
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19. TOXICOLOGIA E FARMACOLOGIA IN VITRO DE NOVOS COMPOSTOS ORGÂNICOS DE SELÊNIO E TELÚRIO COM ATIVIDADE TIPO TIOL PEROXIDASE / TOXICOLOGY AND PHARMACOLOGY OF NEW SELENIUM AND TELLURIUM ORGANIC COMPOUNDS IN VITRO WITH THIOL PEROXIDASE ACTIVITY
Glutathione peroxidase (GPx; EC 1.11.1.9) is a well-known selenoenzyme that catalyzes the reduction of hydrogen peroxide and some organic hydroperoxides by glutathione (GSH) and protects lipid membranes and other cellular components against oxidative stress, which is related to many diseases and this enzyme is regarded as one of the most important antioxidan
Publicado em: 2009
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20. Clonagem, expressão, purificação e estudos estruturais dos domínios de reconhecimento de carboidratos (CRDs) da galectina-4 humana / Cloning, expression, purification and structural studies of the carbohydrate-recognition domains (CRDs) of human galectin-4
The galectin family comprises a group of lectins where the carbohydrate-recognition domains (CRDs) display specific affinity for ß-galactosides. They are widely distributed in normal and neoplasic cells of different organisms and are involved in a great diversity of cellular mechanisms. The galectins have been focus of recent studies, mainly for their invol
Publicado em: 2009
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21. Modulation of intracellular signaling pathways in insulin-producing cells lines by INGAP-PP / Analise das vias de sinalização intracelulares em linhagens de celulas produtoras de insulina expostas ao INGAP-PP
The pentadecapeptide comprising the 104-118 aminoacid sequence of the ilotropin-derived Reg3- related islet neogenesis associated protein (INGA-PP) has been implicated in pancreatic beta-cell neogenesis and enhancement of the insulin secretion in pancreatic islets. There is little information regarding the mechanism of action of the polypeptide. The aim of t
Publicado em: 2009
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22. Synthesis of unnatural α-amino acids, precursors of the inhibitors of thrombin - via Phase Transfer Catalysis (PTC) / Síntese de α-aminoácidos não naturais -precursores de agentes inibidores da trombina - via Catálise de Transferência de Fase (CTF)
Seven novel a-aminoacids precursors were prepared by the alkylation reaction of ethyl acetamidocyanoacetate 112 using bromohexane, benzyl chloride, allyl bromide, 9-(chloro-methyl)antracene, 3-nitrobenzyl bromide, 4-nitrobenzyl bromide, 4-metoxibenzyl bromide and 2-methyl-naphtyl bromide as alkylating agents via Phase Transfer Catalysis (PTC). These reaction
Publicado em: 2009
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23. Treater with spray system in coating of soybean seeds with aminoacid, fungicide, insecticide and polymer / Sistema de aspersão no recobrimento de sementes de soja com aminoácido, fungicida, inseticida e polímero
Com o objetivo de avaliar o tratamento e o recobrimento de sementes de soja em um equipamento com sistema de aspersão da marca Grazmec Spray System foi realizado um conjunto de experimentos na Faculdade de Agronomia Eliseu Maciel (FAEM) da Universidade Federal de Pelotas, campus do Capão do Leão. Os tratamentos aplicados com o equipamento foram: 1) testem
Publicado em: 2009
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24. Cloning and expression analysis of the transcription factor Scratch2 during the chicken early embryogenesis. / Clonagem e análise da expressão do fator de transcrição Scratch2 durante a embriogênese inicial de galinha.
In invertebrates, the Scratch (Scrt) genes encode transcription factors that promote neurogenesis during development. The Scrt function in vertebrates is unknown, but in mice Scrt1 and Scrt2 are specifically expressed in post-mitotic neurons in the embryo and in the adult central nervous system. In this work, we have cloned the coding sequence of chicken Scr
Publicado em: 2009