Inotropism
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. EFFECT OF AQUEOUS FRACTION OF LEAVES DE COSTUS SPIRALIS (JACQ.) ROSCOE CONTRACTILE FUNCTION ON HEART MAMMALS. / EFEITO DA FRAÇÃO AQUOSA DAS FOLHAS DE COSTUS SPIRALIS (JACQ.) ROSCOE SOBRE A FUNÇÃO CONTRÁTIL DO CORAÇÃO DE MAMÍFEROS.
Teas and infusions from C. spiralis leaf have largely been used by folk medicine as diuretic, hypotensor, cytotoxic, immunomodulator, antilithiasic, antidiarrheic, antispasmodic, antiurolitic, antimicrobian, antifungic, antioxidant, antileishmania activity, antiinflamatory, and antiedematogenic activity. In spite of these biological effects attributed to the
Publicado em: 2011
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2. Estudo clínico-epidemiológico da síndrome cardiopulmonar por hantavírus na região de Uberlândia-MG, 2006
The first objective of this work was to study aspects epidemiologic, clinical, laboratory and treatment of 23 cases of Hantavirus Cardiopulmonary Syndrome (HCPS) diagnosed in the Uberlândia County, Minas Gerais, Brazil in the period among August of 1998 to December of 2005. All the analyzed parameters were obtained through the medical records of each patien
Publicado em: 2007
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3. Estudo clÃnico-epidemiolÃgico da sÃndrome cardiopulmonar por hantavÃrus na regiÃo de UberlÃndia-MG, 2006
The first objective of this work was to study aspects epidemiologic, clinical, laboratory and treatment of 23 cases of Hantavirus Cardiopulmonary Syndrome (HCPS) diagnosed in the UberlÃndia County, Minas Gerais, Brazil in the period among August of 1998 to December of 2005. All the analyzed parameters were obtained through the medical records of each patien
Publicado em: 2007
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4. Efeitos da temperatura e manejo do cálcio sobre o miocárdio ventricular do teleosteo neotropical Prochilodus lineatus.
The present study anlyzed the in vivo and in vitro responses of the myocardium obtained from Prochilodus lineatus acclimated at 25 C and tested at 25 and 35 C. The in vivo heart rate (fH bpm) was measured during acute transitions in temperature and subsequent return to 25 C. ECG recordings (lead DI of the electrocardiography) were obtained of electrodes at c
Publicado em: 2005
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5. Inotropic effects of extracts of Psidium guajava L. (guava) leaves on the guinea pig atrium
Many pharmacological effects have been ascribed to extracts of Psidium guajava L. (guava) leaves. However, in spite of its widespread use in Brazilian folk medicine and a reasonable number of scientific reports about it, we could not find any study dealing with its action on the mammalian myocardium. In the present study, by measuring isometric force, we obs
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-05
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6. Sensibilidade a agonistas [beta]-adrenergicos em atrio esquerdo isolado de ratos submetidos a estresse
Following foot shock stress white adipocytes and right atria from male and right atria from female rats sacrificed at diestrous, are supersensitive to the chronotropic effect of isoprenaline. Right atria from female rats are also subsensitive to noradrenaline. In the present study, we investigated whether the inotropic response to B-adrenergic agonists was a
Publicado em: 2002
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7. Alterações cardiovasculares induzidas pelo veneno da aranha (Phoneutria nigriventer) em ratos anestesiados
The changes induced in the mean arterial blood pressure (MABP) of anaesthetised rats following the administration of armed spider (Phoneutria nigriventer) venom have been investigated. The intravenous injection of Phoneutria nigriventer venom (PNV; 0.1 mg/kg) evoked a brief and reversible decrease in the MABP whereas a higher dose of venom (0.3 mg/kg) caused
Publicado em: 1996
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8. Possible role of diadenosine polyphosphates as modulators of cardiac sensory-motor neurotransmission in guinea-pigs.
1. Isolated guinea-pig atria were used to study the neuromodulatory effect of diadenosine polyphosphates (APnA) on cardiac capsaicin-sensitive sensory-motor neurotransmission. 2. In the presence of atropine, guanethidine and propranolol, electrical field stimulation (EFS) of the atrial preparations evoked a positive inotropic response which is known to be me
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9. Effects of chronic exposure to arsenate on the cardiovascular function of rats.
Cardiovascular function was studied in anaesthetised male rats which received 50 micrograms/ml of arsenic (as sodium arsenate) in deionised drinking water for 320 days. High urinary excretion of arsenic was found at the end of treatment and the metal accumulated considerably in the kidneys and liver, which both presented slight alterations. No histopathologi
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10. Renal mechanisms in the cardiovascular effects of chronic exposure to inorganic mercury in rats.
Male weanling Wistar rats received 200 micrograms/ml of mercury (Hg), as HgCl2, in drinking water for 180 days. At the end of the treatment, systemic arterial blood pressure was augmented, cardiac inotropism was reduced, and heart rate was unchanged. Light and electron microscopical studies of the kidney showed a mesangial proliferative glomerulonephritis in
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11. Milrinone in heart failure. Acute effects on left ventricular systolic function and myocardial metabolism.
Milrinone, a new bipyridine compound related to amrinone, is a potent non-adrenergic inotrope in experimental preparations and also shows vasodilator activity. In the present study the haemodynamic and metabolic effects of milrinone were evaluated in 12 patients with congestive heart failure. Milrinone 5 mg given orally produced a sharp reduction in left ven
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12. Renal toxicity and arterial hypertension in rats chronically exposed to vanadate.
The effects of 1, 10, or 40 micrograms/ml of vanadium, given for six or seven months as sodium metavanadate in drinking water on cardiovascular and biochemical variables and the electrolyte metabolism of male Sprague-Dawley rats were investigated. At the end of the exposure period, all animals exposed to vanadate had increased systolic and diastolic blood pr