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Horiz. méd. (Impresa) ; 8(2): 41-47, dic. 2008. tab
Artigo em Espanhol | LILACS, LIPECS | ID: lil-677731

RESUMO

Maytenus krukovii (chuchuhuasi), oriunda de la amazonía sudamericana, tradicionalmente se le atribuye acción analgesica, antiinflamatoria, afrodisíaca entre otros; investigaciones reportan acción analgésica con intermediación de receptores opiáceos, efecto antipirético, antiinflamatorio y gastroprotector. El presente estudio experimental indagó acerca de la acción sobre la presión arterial y frecuencia cardiaca del chuchuhasi en rata conciente. Se utilizaron 10 ratas albinas machos, a las que se les administró vía oral, 1000 mg/kg de extracto metanolico de chuchuhuasi, se registraron básales y controles de presión arterial y frecuencia cardiaca a las 1, 3, 4 y 24 horas, utilizando el LE 5000 Meter Pressure. Los resultados obtenidos muestran comparados con los valores basáles, actividad hipotensora del Maytenus Krukovii destacándose el máximo efecto a la hora de administración arterial sistólica (238 vs. 181 mmhg), diastolica (200 vs 129 nmhg) y media (299 vs 187 mmhg); respecto a la frecuencia cardiaca Maytenus Krukovii mostró actividad bradicárdica, siendo su máximo efecto a las 3 horas de administrar el chuchuhuasi (430 vs 386 latidos por minutos). Se concluye en que Maytenus krukovii presenta acción hipotensora y cronotropa negativa.


Maytenus krukovii (chuchuhuasi), is originary from the South America Amazonian Forest, traditionally anti-inflammatory, analgesic, aphrodisiac proporties are atributed to this plant. Research reports suggest analgesic action by intermediation of opioid receptors, antipyretic effect, antiinflammatory and gastro protective actions. The presente experimental study inquited about the action of chuchuhuasi on blood pressure and cardiac frequency on conscious rats. Ten male albino rats were administered orally with 1000 mg/kg of methanolic extract of chuchuhuasi. Basal blood pressure and cardiac frequency were registared alt hour 1, 3, 4 and 24, using LE 5000 Meter Pressure. Results obtained show comparative values regarding basal values, with hipontensive activity of Maytenus krukovii. The maximum values is detected at the first hour of administration, systolic blood pressure (238 vs. 181 mmHg), diastolic (200 vs. 129 NMHG) and media (299 vs. 187 mmHg); were obtained. Redarding cardiac frequency, Maytenus krukowii showed bradychardic activity the highest effect recorded after 3 hours (430 vs. 386 beats/minute). We conclude that Maytenus krukovii has hypotensive action and negative chronotropic effects.


Assuntos
Animais , Frequência Cardíaca , Maytenus , Pressão Sanguínea
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