Katp Channels
Mostrando 1-12 de 146 artigos, teses e dissertações.
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1. Late cardiac perconditioning by phenylephrine in an isolated rat heart model is mediated by mitochondrial potassium channels
The present study was designed to investigate the effect of early and late administration of phenylephrine during ischemia against regional ischemia-reperfusion injuries in an isolated rat heart model. All animals were randomly divided into experimental groups: (I) IR (Ischemic/ reperfusion): the hearts underwent 35 min of regional ischemia followed by 60 mi
Braz. J. Pharm. Sci.. Publicado em: 24/10/2019
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2. Permanent neonatal diabetes by a new mutation in KCNJ11: unsuccessful switch to sulfonylurea
Permanent neonatal diabetes (PNDM) can result from activating heterozygous mutations in KCNJ11 gene, encoding the Kir6.2 subunit of the pancreatic ATP-sensitive potassium channels (KATP). Sulfonylureas promote KATP closure and stimulate insulin secretion, being an alternative therapy in PNDM, instead of insulin. Male, 20 years old, diagnosed with diabetes at
Arch. Endocrinol. Metab.. Publicado em: 28/08/2015
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3. The hydrogen sulfide donor, Lawesson's reagent, prevents alendronate-induced gastric damage in rats
Our objective was to investigate the protective effect of Lawesson's reagent, an H2S donor, against alendronate (ALD)-induced gastric damage in rats. Rats were pretreated with saline or Lawesson's reagent (3, 9, or 27 µmol/kg, po) once daily for 4 days. After 30 min, gastric damage was induced by ALD (30 mg/kg) administration by gavage. On the last day of t
Braz J Med Biol Res. Publicado em: 16/08/2013
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4. Ação do inibidor da enzima dipeptidil peptidase 4 sobre o pré-condicionamento isquêmico em pacientes portadores de diabetes mellitus tipo 2 e doença arterial coronariana estável / Effect of dipeptidyl peptidase-4 enzyme inhibitor on ischemic preconditioning in patients with type 2 diabetes and symptomatic coronary artery disease
Ischemic preconditioning (IPC) refers to the phenomenon in which short periods of myocardial ischemia and reperfusion promote resistance to a subsequent prolonged ischemic insult. Some hypoglycemic drugs, such as glibenclamide and repaglinide, are able to inhibit this protective phenomenon probably by its effects as blockers of adenosine triphosphate-depende
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/10/2012
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5. Avaliação da ação espasmolítica do flavonoide 3,6-Dimetil éter galetina, isolado de Piptadenia stipulacea (Benth.) Ducke e investigação do mecanismo de ação em traqueia de cobaia e aorta de rato / Evaluation of spasmolytic action of the flavonoid galetin 3,6-dimethyl ether isolated from Piptadenia stipulacea (Benth.) Ducke and investigation of the mechanism of action in guinea pig trachea and rat aorta
O flavonoide 3,6-dimetil éter galetina (FGAL) foi isolado das partes aéreas de Piptadenia stipulacea (Benth.) Ducke e foi investigada sua possível atividade hemolítica em eritrócitos de rato e espasmolítica em vários músculos lisos isolados como útero de rata, íleo e traqueia de cobaia, e aorta de rato. FGAL não causou efeito hemolítico em eritr�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
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6. Participação dos canais de potássio no efeito relaxante do ácido ent-7a-hidroxitraquiloban-18-oico em traqueia isolada de cobaia / Participation of potassium channels in the ent-7a-hidroxitrachyloban-18-oic acid relaxation effect on guinea pig trachea
From Xylopia langsdorfiana A. St-Hil. &Tul. stem bark was isolated the diterpene of trachylobane class, ent-7α-hydroxytrachyloban-18-oic acid (trachylobane-318) that in previous studies showed to be able to relax guinea-pig trachea pre-contracted by carbachol (CCh). Thus, we aimed to investigate the action mechanism underlying in this trachylobane-318 r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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7. Participação dos canais para potássio nos efeitos cardiovasculares induzidos por um novo composto 1,3,4- oxadiazol. / Participation of potassium channels in cardiovascular effects induced by a novel compound 1,3,4-oxadiazole.
Os efeitos farmacológicos de OXDINH, um derivado 1,3,4-oxadiazol obtido por síntese orgânica, sobre o sistema cardiovascular e a participação dos canais para K+ nesta resposta, foram estudados em ratos usando técnicas combinadas in vivo e in vitro. Em anéis de artéria mesentérica superior isolada de rato, com endotélio funcional, OXDINH (10-10 10-4
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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8. Participation of the NO/cGMP/K+ATP pathway in the antinociception induced by Walker tumor bearing in rats
Implantation of Walker 256 tumor decreases acute systemic inflammation in rats. Inflammatory hyperalgesia is one of the most important events of acute inflammation. The L-arginine/NO/cGMP/K+ATP pathway has been proposed as the mechanism of peripheral antinociception mediated by several drugs and physical exercise. The objective of this study was to investiga
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-06
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9. Estudo do efeito relaxante de um novo composto doador de óxido nítrico em preparações de traquéias isoladas de ratos / Study of the relaxing effect of a new nitric oxide donor compound in preparations of isolated rat tracheae
This study evaluated the mechanisms of relaxation of two nitric oxide (NO) donors, ruthenium complex [Ru(terpy)(bdq)NO+]3+ (Terpy) and sodium nitroprusside (SNP) in isolated trachea of rats. The isolated trachea was sectioned into rings and contracted with carbachol in an organ chamber. The relaxing effect of Terpy and SNP was evaluated at increasing concent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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10. Estudo do efeito relaxante de um novo composto doador de óxido nítrico em preparações de traquéias isoladas de ratos / Study of the relaxing effect of a new nitric oxide donor compound in preparations of isolated rat tracheae
O presente trabalho avaliou os mecanismos de relaxamento de dois doadores de óxido nítrico (NO), o complexo de rutênio [Ru(terpy)(bdq)NO+]3+ (Terpy) e o nitroprussiato de sódio (NPS) em traquéias isoladas de ratos. A traquéia isolada foi montada em banho para órgãos isolados e contraída com carbacol para estudo do relaxamento. O efeito relaxante do
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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11. Papel dos canais K+ATP na resposta eletrofisiológica ao FSH e ao isoproterenol em células de Sertoli
Follicle-stimulating hormone (FSH) produces a dual effect on the membrane potential of Sertoli cells, with an initial rapid phase, which comprises a hyperpolarization for a period of seconds and a depolarization phase, wich occurs more slowly, within minutes. The depolarization phase involves calcium entry stimulated by FSH. Isoproterenol, an agonist of ¿-a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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12. Participação Do Cálcio Citosólico Sobre A Ação Espasmolítica Do Ácido Ent-7a-Acetoxitraquiloban-18-Óico E De Seu Derivado Hidroxilado Em Íleo Isolado De Cobaia / Partipation of cytosolic calcium in spasmolytic action of ent-7a-acetoxytrachyloban-18-oic acid and its hidroxylated derivated on guinea-pig ileum
From the stem bark of Xylopia langsdorfiana A. St.-Hil. &Tul. (Annonaceae), popularly known as pimenteria da terra, was isolated the diterpene ent-7-α-acetoxytrachyloban-18-oic acid (trachylobane-360) from which it was made a structural modification in which the acetoxy group was substituted by hydroxy generating the ent-7a-hidroxitrachyloban-18-oic aci
Publicado em: 2010