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1.
Invest Clin ; 45(4): 317-22, 2004 Dec.
Article in English | MEDLINE | ID: mdl-15602898

ABSTRACT

Lantana trifolia L. (Verbenaceae) is traditionally used as an anti-inflammatory medicinal plant in Venezuela. The methanol extract of the aerial parts of L. trifolia were assessed for the anti-inflammatory, anti-nociceptive and anti-pyretic properties. The extract produced an inhibition of carrageenan-induced edema in the rat paw over a dose range of 10-300 mg/kg i.p.; the dose-response curve was bell-shaped with a maximal effect at 100 mg/kg. The extract also produced a small but significant increase in the response latency of rats subjected to the hot plate, a thermal pain test that only detects analgesia by high-efficacy agents. The extract did not exhibit antipyretic activity. Thus, the L. trifolia extract could have therapeutically relevant anti-inflammatory and analgesic properties in humans.


Subject(s)
Analgesics , Anti-Inflammatory Agents, Non-Steroidal , Lantana , Phytotherapy , Analgesics/therapeutic use , Analysis of Variance , Animals , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Disease Models, Animal , Inflammation/drug therapy , Male , Pain/drug therapy , Plant Preparations/therapeutic use , Rats , Rats, Sprague-Dawley
2.
Invest. clín ; 45(4): 317-322, dic. 2004. graf
Article in English | LILACS | ID: lil-411889

ABSTRACT

Lantana trifolia Linnaeus (Verbenaceae) es tradicionalmente utilizada en Venezuela como una planta medicinal antiinflamatoria. Nosotros indagamos si el extracto metanólico de la parte aérea de L. trifolia posee propiedades antiinflamatoria, antinociceptiva y antipirética. El extracto produjo inhibición del edema inducido por carragenina en la pata trasera derecha de las ratas, en dosis de 10-300 mg/Kg de peso del animal., administradas vía i.p. La curva dosis-respuesta exhibe un máximo a la dosis de 100 mg/Kg. El extracto también produjo un leve pero significativo incremento en la respuesta de latencia de las ratas sometidas al plato caliente, una prueba que sólo detecta analgesia en agentes altamente eficaces. El extracto no exhibió actividad antipirética. El extracto de L. trifolia pudiera tener propiedades terapéuticas antiinflamatorias y analgésicas relevantes en humanos


Subject(s)
Analgesics , Anti-Inflammatory Agents , Plants, Medicinal , Medicine , Venezuela
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