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Effect of mannitol on the pharmacokinetics of amikacin in wistar rats
Olguín, Hugo Juárez; Portugal, Miriam Carrasco; Pérez, Janett Flores; Vieyra, Angélica Camacho; Pérez, Carmen Flores; Rodríguez, Alfonso Alfaro.
Affiliation
  • Olguín, Hugo Juárez; National Institute of Pediatrics. Laboratory of Pharmacology. MX
  • Portugal, Miriam Carrasco; National Institute of Pediatrics. Laboratory of Pharmacology. MX
  • Pérez, Janett Flores; National Institute of Pediatrics. Laboratory of Pharmacology. MX
  • Vieyra, Angélica Camacho; National Institute of Pediatrics. Laboratory of Pharmacology. MX
  • Pérez, Carmen Flores; National Institute of Pediatrics. Laboratory of Pharmacology. MX
  • Rodríguez, Alfonso Alfaro; National Center of Rehabilitation. Laboratory of Neurochemistry. MX
Braz. arch. biol. technol ; 52(4): 835-839, July/Aug. 2009. tab, ilus
Article in English | LILACS | ID: lil-525603
Responsible library: BR1.1
ABSTRACT
The study analyzed the effect of mannitol on the pharmacokinetics (PK) of amikacin. Adult Wistar rats were treated as follows Group 1 (G1) received mannitol for three days, Group 2 (G2) received mannitol plus 10 mg/kg of amikacin simultaneously, and Group 3 only amikacin. The PK study was conducted on the 4th day. For which, blood samples were drawn at fixed times during 24 h and immunoenzymatically analyzed. Results revealed significant differences (p<0.05) between the groups, e.g. Cmax were 62.26 ± 15.75 µg/ml for G1, 72.63 ± 24.80 µg/ml for G2 and 68.61 ± 27.40 µg/ml for G3. The AUC also differed in the three groups, being largest for G2, 222.52 ± 47.30 µg/ml/h, and smallest for G1, 135.59 ± 39.00 µg/ml/h. Alteration of the PK parameters observed between the groups must be considered when both drugs are prescribed, although human studies are necessary to confirm the results.
RESUMO
O estudo analisa o efeito do manitol na farmacocinética (PK) da amicacina . Ratos adultos Wistar foram tratadas da seguinte maneira o grupo 1 (G1) recebeu manitol durante três días. Ao grupo 2 (G2) se administrou manitol e 10 mg/kg de amicacina, ao mesmo tempo. Finalmente, o grupo 3 (G3) recebeu somente amicacina. No quarto día se realizou o estudo de PK nos três grupos. Para isso, foram retiradas amostras de sangue, em tempos pre-determinados, durante 24 horas, que foram analisadas por métodos imunoenzimáticos. Os resultados mostraram diferencas significativas (p < 0.05) entre os grupos. Po exemplo, os valores obtidos de Cmax foram 62.26 ± 15.75 µg/ml para G1, 72.63 ± 24.80 µg/ml para G2 e 68.61 ± 27.40 µg/ml para o Grupo 3. A AUC foi também diferente entre os três grupos a maior para G2, com, 222.52 ± 47.30 µg/ml/h, e a menor para G1, com um valor de 135.59 ± 39.00 µg/ml/h. A alteração dos parámetros de PK entre os grupos debe ser considerada quando se administram os dois farmacos simultaneamente. No entanto, é necessario realizar estudos em seres humanos para confirmar os nossos resultados.

Full text: Available Collection: International databases Database: LILACS Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2009 Document type: Article Affiliation country: Mexico Institution/Affiliation country: National Center of Rehabilitation/MX / National Institute of Pediatrics/MX
Full text: Available Collection: International databases Database: LILACS Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2009 Document type: Article Affiliation country: Mexico Institution/Affiliation country: National Center of Rehabilitation/MX / National Institute of Pediatrics/MX
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