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1.
Chinese Journal of Comparative Medicine ; (6): 80-82, 2015.
Artículo en Chino | WPRIM | ID: wpr-461618

RESUMEN

Objective To improve the fixation method of indwelling needle inserted in the tail vein in rats to keep the inserted needle for a longer indwelling time .Methods One hundred healthy Wistar rats ( age 5~6 months, male:female=1:1) were randomly divided into two groups: the experimental group and the control group .Rats in both groups received the same tail vein indwelling needle puncture and cannulation .The control group got the traditional fixation , namely fixed by sticking with 3M transparent dressing paste .The experimental group received in addition to the traditional fixation, a 0.1 mm-thick aluminum tube placed outside the needle fixation site .The indwelling time in the rats were recorded and analyzed .Results The indwelling time was (166.86 ±9.03) h and (20.24 ±5.04) h in the experimental and control groups, respectively (t =68.546, P<0.01).Conclusions Our improved method is safe and reliable.It can prolong the indwelling time of the punctured intravenous indwelling needle , and provides a useful rat model in studies on the complications of intravenous indwelling needle kept for a longer time .

2.
Journal of Biomedical Engineering ; (6): 376-378, 2007.
Artículo en Chino | WPRIM | ID: wpr-357694

RESUMEN

The relative bioavailability of roxithromycin dispersive tablet in healthy volunteers was evaluated in this study. Its concentration in plasma was detected by high performance liquid chromatography (HPLC) after twenty healthy male volunteers were given each a single dose of 300 mg roxithromycin. The experiment data were obtained using DAS programme. The values of Cmax were 10.16+/-1.46 and 10.34+/-1.66 microg x ml(-1) at 2.33+/-0.61 and 2.28+/-0.62 h respectively; of t1/2 were 9.00+/-1.58 and 8.68+/-1.66 h respectively; of AUC0-->Tn were 143.32 +/-25. 80 and 138.93+/-22. 49 microg x h x ml(-1) respectively; of AUC0-->infinity were 158.63+/-26.86 and 153.77+/-24.75 microg x h x ml(-1) for test and reference drugs. Relative bioavailability of the tested roxithromycin was 103.63%+/-14.04%. The result showed that the two dispersive tablets are bioequivalent.


Asunto(s)
Humanos , Masculino , Adulto Joven , Administración Oral , Antibacterianos , Sangre , Farmacocinética , Disponibilidad Biológica , Cromatografía Líquida de Alta Presión , Roxitromicina , Sangre , Farmacocinética , Comprimidos , Equivalencia Terapéutica
3.
Chinese Traditional Patent Medicine ; (12)1992.
Artículo en Chino | WPRIM | ID: wpr-681970

RESUMEN

Objective: To establish the method of dissolution determination for evaluating and improving the quality of Xindakang sugar coated Tablets. Xindakang Sugar coated Tablets from three enterprises were investigated. Methods: To adopt 900mL0.5% Tween80 H 2O as dissolvent and rotating basket method at 100r?min -1 , the cumulative dissolution percentage was determined by UV. The dissolution parameters was obtained by Weibull distribution model and dealed with one way ANOVA. Results: The significant differences in dissolution parameters(T d, T 50 ,m)( P

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