Résumé
Objective To explore the mechanism of Niaochangshu capsule in the treatment of postmenopausal overactive bladder, through observing its influence on bladder weight and the expression of eNOS and AQP1 of ovariectomized female rats. Methods Female SD rats were divided into blank group, model group, Nilestriol group and Niaochangshu group. Rats were removed ovaries except the blank group. The treatment groups were given corresponding drugs, blank group and model group were given normal saline by gavage. After 4 weeks, the bladders' weight and thickness were detected, the expressions of eNOS and AQP1 in serum and bladder tissue were determined by ELISA, and NO by spectrophotometry. Results Ovariectomy resulted in decreased bladder weight, bladder mucosal and muscular atrophy, and opposite changes showed after given Niaochangshu. The expressions of eNOS and NO in bladder and serum were decreased significantly after ovariectomy, while increased by given Niaochangshu capsule or nylestriol (P<0.05), and there was significant difference between Niaochangshu group and Nilestriol group (P<0.05). The expression of AQP1 was decreased in the model group, and increased after given nylestriol or Niaochangshu capsule. While the expression of AQP1 in bladder had no significant difference among the four groups. Conclusion Niaochangshu capsule can reverse bladder mucosal and muscular atrophy caused by estrogen deficiency, and increase the content of eNOS in serum and bladder, thus play the role in the treatment of postmenopausal overactive bladder.
Résumé
OBJECTIVE@#The purpose of this study is to observe the affection of different clinical surgeries on alar nasal cartilages' growth and development. The experimental results can provide some theory basis for clinical surgeries.@*METHOD@#Twenty-eight New Zealand immature rabbits were used in this study, and divided into normal control group, hidden dissection group and cutting off alar nasal cartilages group randomly, which included 4,12 and 12 rabbits, separately. Arc incision were made on the mucous membrane of nasal cavity,and then dissect the alar nasal cartilages hidden or cut off the alar nasal cartilages, separately. The growth and development of the alar cartilage were observed at different stages after the surgery using histological and immuno-histochemical methods.@*RESULT@#Four weeks, eight weeks, twelve weeks and sixteen weeks after surgery, there were no significant differences in the indexes of chondrocytes between hidden dissection group and control group. In cutting off alar nasal cartilages group, fiber tissue were observed in the vacancy left after being cut off cartilages, and even mucous membrane tissue could be seen in some slices.@*CONCLUSION@#There is no adverse influence on the growth and development of the alar cartilage after being hidden dissected. Contrarily, the restoring capability of transparent cartilage cannot counteract the injury resulted form the surgery after the alar nasal cartilages being cut off.