Studies on the liver targeting of norcantharindin microemulsion / 药学学报
Acta Pharmaceutica Sinica
;
(12): 650-655, 2004.
Artigo
em Chinês
| WPRIM
| ID: wpr-302743
ABSTRACT
<p><b>AIM</b>To study the morphology, particle size distribution and biological reliability of the norcantharindin (NCTD)-loaded microemulsion and pharmacokinetics of the W/O norcantharidin-loaded microemulsion in mice.</p><p><b>METHODS</b>The concentration of NCTD in plasma and tissues were determined by GC method. The data obtained were processed using 3P87 program.</p><p><b>RESULTS</b>The mean particle diameter of microemulsion was (44 +/- 9) nm. The concentration-time curve of NCTD-loaded microemulsion and NCTD injection was fitted to a two-compartment model. At the same dosage, the pharmacokinetic study for NCTD-loaded microemulsion showed the NCTD microemulsion had relatively longer circulating time in mice. Area under the curve of concentration versus time (AUC), mean residence time (MRT) and half life (T1/2) for microemulsion and injection were (29.7 +/- 0.9) mg x h x L(-1), (9.25 +/- 0.09) mg x h x L(-1), (110 +/- 11) h, (86.7 +/- 0.8) h, (103 +/- 12) h, (42 +/- 4) h, respectively. Targeting index of NCTD microemulsion in liver and kidney in mice were 0.43 and 0.12 after iv NCTD-loaded microemulsion. The effects of biological reliability was not significantly different between NCTD microemulsion and NCTD injection in vivo and in vitro.</p><p><b>CONCLUSION</b>The liver targeting absorptive capability of NCTD-loaded microemulsion was enhanced and the release time was extended compared with NCTD injection. While the microemulsion vehicles could decrease the kidney distribution of NCTD.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Tamanho da Partícula
/
Patologia
/
Farmacologia
/
Farmacocinética
/
Distribuição Tecidual
/
Células Cultivadas
/
Sistemas de Liberação de Medicamentos
/
Carcinoma Hepatocelular
/
Compostos Bicíclicos Heterocíclicos com Pontes
/
Área Sob a Curva
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Acta Pharmaceutica Sinica
Ano de publicação:
2004
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS