Estudios fisicoquímicos y biológicos de un nuevo derivado de la eritromicina: el folato de eritromicina

Autores/as

  • PK MANNA Department of Pharmacy, Annamalai University, Annamalai Nagar, Tamil Nadu 608002, India
  • V KUMARAN Department of Pharmacy, Annamalai University, Annamalai Nagar, Tamil Nadu 608002, India
  • GP MOHANTA Department of Pharmacy, Annamalai University, Annamalai Nagar, Tamil Nadu 608002, India

Palabras clave:

folato de eritromicina, Actividad antimicrobiana in vitro, Concentración sérica in vivo, Parámetros farmacocinéticos

Resumen

Se preparó un derivado nuevo de la eritromicina, el folato de eritromicina, y se evaluaron sus propiedadesfisicoquímicas y biológicas. El derivado presenta una buena solubilidad en metanol, etanol ypropileno glicol. Los valores de los coeficientes de partición, que fueron 1,12 y 1,10 en sistemas decloroformo/agua y octanol/agua respectivamente, indican que probablemente se distribuya bien in vivo.La potencia in vitro del derivado, 716 μg/mg, es mayor que la de derivados existentes como el estolatode eritromicina, el estearato de eritromicina, el etil sucinato de eritromicina, el gluceptato de eritromicinay el lactobionato de eritromicina. Las concentraciones inhibitorias mínimas in vitro del derivado sonmenores que las de la base frente a Klebsiella pneumonia, Pseudomonas aeruginasa, Bacillus pumilis yEscherichia coli. Los parámetros farmacocinéticos in vivo del derivado en conejos son los siguientes:la vida media de eliminación, t½ es de 117,45 min. para el derivado y de 150,45 min. para la base deeritromicina utilizada como estándar de referencia. El volumen de distribución Vd del derivado y de labase de eritromicina es de 177,56 % y 352,20 % respectivamente. Los resultados de la investigaciónindican que el folato de eritromicina tiene un gran potencial en aplicaciones clínicas posibles.

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Citas

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Publicado

2004-12-20

Cómo citar

1.
MANNA P, KUMARAN V, MOHANTA G. Estudios fisicoquímicos y biológicos de un nuevo derivado de la eritromicina: el folato de eritromicina. Ars Pharm [Internet]. 20 de diciembre de 2004 [citado 1 de mayo de 2024];46(1):57-72. Disponible en: https://revistaseug.ugr.es/index.php/ars/article/view/5064

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