Miscibility of the fibroin, which was soluble in CaCl\-2\|H\-2O\|C\-2H\-5OH aqueous solution, mixed with chitosan was investigated, and its microspheres were prepared. The chitosan (CS)/fibroin (FB) microsphere inclus...Miscibility of the fibroin, which was soluble in CaCl\-2\|H\-2O\|C\-2H\-5OH aqueous solution, mixed with chitosan was investigated, and its microspheres were prepared. The chitosan (CS)/fibroin (FB) microsphere inclusion fenoprofen calcium (CS\|FB\|FC) was prepared, and its structure was analyzed by FTIR, X\|ray and SEM. The results indicated that blend of chitosan, fibroin and fenoprofen calcium in aqueous solution is miscible, and strong interaction caused by intermolecular hydrogen bonding exits in CS\|FB\|FC. It was indicated that approximately 77% of fenoprofen from the microsphere were released in phosphate\|buffered saline(pH=7.4) within the initial 6h, and with increasing the glutaraldehyde concentration, the release of fenoprofen decreased.展开更多
OBJECTIVE: To evaluate the efficacy of a novel compound derived from Traditional Chinese Medicine (TCM) for treatment of alveolar echinococcosis in the Kuming mouse. METHODS: The compound was extracted from TCM by ser...OBJECTIVE: To evaluate the efficacy of a novel compound derived from Traditional Chinese Medicine (TCM) for treatment of alveolar echinococcosis in the Kuming mouse. METHODS: The compound was extracted from TCM by serial procedures including amalgamation of TCM drugs, boiling in a beaker, cold condensation using a reflux instrument, evaporation by mild heating and finally, formation of a deep brown powder. An animal model of alveolar echinococcosis was established concurrently. A bit of alveococcus tissue derived from alveolar echinococcosis in the mouse was transplanted into the peritoneal cavity of the musculus of a Kuming mouse. The duration of infection after inoculation was classified as either 1 week or 10 weeks; the animals were again divided into treated groups and control groups. Estimation of the alveococcus inhibitory rate and electron microscopic observation served as the main methods for assessment of efficacy. The infected mice in the treated groups were intra-gastrically administered once per day with the TCM extractive powder at doses of 20 mg.kg(-1) for three months continuously. All the animals were sacrificed and examined half a month after the end of TCM treatment. RESULTS: Total wet weight of alveococcus collected from the 9 mice in the treated group after one week of infection was 37.8 g (x +/- s, 4.196 +/- 2.090 g), which was markedly lower than the amount collected from 10 mice of the control group (121.3 g, x +/- s, 12.1 +/- 4.3 g). Therefore, the inhibitory rate of the alveococcus was 65.7% (P展开更多
文摘Miscibility of the fibroin, which was soluble in CaCl\-2\|H\-2O\|C\-2H\-5OH aqueous solution, mixed with chitosan was investigated, and its microspheres were prepared. The chitosan (CS)/fibroin (FB) microsphere inclusion fenoprofen calcium (CS\|FB\|FC) was prepared, and its structure was analyzed by FTIR, X\|ray and SEM. The results indicated that blend of chitosan, fibroin and fenoprofen calcium in aqueous solution is miscible, and strong interaction caused by intermolecular hydrogen bonding exits in CS\|FB\|FC. It was indicated that approximately 77% of fenoprofen from the microsphere were released in phosphate\|buffered saline(pH=7.4) within the initial 6h, and with increasing the glutaraldehyde concentration, the release of fenoprofen decreased.
文摘OBJECTIVE: To evaluate the efficacy of a novel compound derived from Traditional Chinese Medicine (TCM) for treatment of alveolar echinococcosis in the Kuming mouse. METHODS: The compound was extracted from TCM by serial procedures including amalgamation of TCM drugs, boiling in a beaker, cold condensation using a reflux instrument, evaporation by mild heating and finally, formation of a deep brown powder. An animal model of alveolar echinococcosis was established concurrently. A bit of alveococcus tissue derived from alveolar echinococcosis in the mouse was transplanted into the peritoneal cavity of the musculus of a Kuming mouse. The duration of infection after inoculation was classified as either 1 week or 10 weeks; the animals were again divided into treated groups and control groups. Estimation of the alveococcus inhibitory rate and electron microscopic observation served as the main methods for assessment of efficacy. The infected mice in the treated groups were intra-gastrically administered once per day with the TCM extractive powder at doses of 20 mg.kg(-1) for three months continuously. All the animals were sacrificed and examined half a month after the end of TCM treatment. RESULTS: Total wet weight of alveococcus collected from the 9 mice in the treated group after one week of infection was 37.8 g (x +/- s, 4.196 +/- 2.090 g), which was markedly lower than the amount collected from 10 mice of the control group (121.3 g, x +/- s, 12.1 +/- 4.3 g). Therefore, the inhibitory rate of the alveococcus was 65.7% (P
