To obtain expected rapid-release and sustained-release of ketoprofen gel beads, this paper adopted biopolymer alginate to prepare alginate beads and chitosan-alginate gel beads. Formulation factors were investigated a...To obtain expected rapid-release and sustained-release of ketoprofen gel beads, this paper adopted biopolymer alginate to prepare alginate beads and chitosan-alginate gel beads. Formulation factors were investigated and optimized by the single factor test. The release of ketoprofen from calcium alginate gel beads in pH 1.0 hydrochloric acid solution was less than 10% during 2 h, then in pH6.8 was about 95% during 45 min, which met the requirements of rapid-release preparations. However, the drug release of chitosan-alginate gel beads in pH1.0 was less than 5% during 2 h, then in pH6.8 was about 50% during 6 h and reached more than 95% during 12 h, which had a good sustained-release behavior. In addition, the release kinetics of keteprofen from the calcium alginate gel beads fitted well with the Korsmeyer–Peppas model and followed a case-II transport mechanism. However, the release of keteprofen from the chitosan-alginate gel beads exhibited a non-Fickian mechanism and based on the mixed mechanisms of diffusion and polymer relaxation from chitosanalginate beads. In a word, alginate gel beads of ketoprofen were instant analgesic, while chitosan-alginate gel beads could control the release of ketoprofen during gastrointestinal tract and prolong the drug's action time.展开更多
目的对比发散式体外冲击波疗法与外用酮洛芬凝胶治疗肱骨外上髁炎的疗效。方法选取2016年3月至2016年6月中国武警总医院收治的40例肱骨外上髁炎患者为研究对象,采用随机数表法将所有患者分为冲击波组和酮洛芬组,每组各20例。通过评估两...目的对比发散式体外冲击波疗法与外用酮洛芬凝胶治疗肱骨外上髁炎的疗效。方法选取2016年3月至2016年6月中国武警总医院收治的40例肱骨外上髁炎患者为研究对象,采用随机数表法将所有患者分为冲击波组和酮洛芬组,每组各20例。通过评估两组患者治疗前、治疗结束后即刻、治疗后2个月的视觉模拟评分法(visual analogue scale,VAS)评分、美国特种外科医院(the hospital for special surgery,HSS)评分及Verhaar疗效评价系统评分,对比两种治疗方法的临床效果。结果治疗结束后即刻和治疗后2个月,两组患者的VAS评分均低于治疗前(P<0.05),HSS评分均高于治疗前(P<0.05),且冲击波组患者上述指标改善程度均优于酮洛芬组(P<0.05)。治疗结束后即刻对患者进行评价,冲击波组患者Verhaar疗效评价系统评分优良率可达85%,明显高于酮洛芬组(40%);治疗后2个月,酮洛芬组患者Verhaar疗效评价系统评分优良率有所下降(30%),冲击波组略有升高(90%)。结论发散式体外冲击波疗法与外用酮洛芬凝胶治疗肱骨外上髁炎的近期疗效均较好,但发散式体外冲击波治疗的远期疗效优于外用酮洛芬凝胶,且患者无不良反应发生,值得临床推广应用。展开更多
基金supported by the program of supporting career development of young and middle-aged teachers from Shenyang Pharmaceutical University (ZQN2015011)the Open fund of Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine(zyzx1608)
文摘To obtain expected rapid-release and sustained-release of ketoprofen gel beads, this paper adopted biopolymer alginate to prepare alginate beads and chitosan-alginate gel beads. Formulation factors were investigated and optimized by the single factor test. The release of ketoprofen from calcium alginate gel beads in pH 1.0 hydrochloric acid solution was less than 10% during 2 h, then in pH6.8 was about 95% during 45 min, which met the requirements of rapid-release preparations. However, the drug release of chitosan-alginate gel beads in pH1.0 was less than 5% during 2 h, then in pH6.8 was about 50% during 6 h and reached more than 95% during 12 h, which had a good sustained-release behavior. In addition, the release kinetics of keteprofen from the calcium alginate gel beads fitted well with the Korsmeyer–Peppas model and followed a case-II transport mechanism. However, the release of keteprofen from the chitosan-alginate gel beads exhibited a non-Fickian mechanism and based on the mixed mechanisms of diffusion and polymer relaxation from chitosanalginate beads. In a word, alginate gel beads of ketoprofen were instant analgesic, while chitosan-alginate gel beads could control the release of ketoprofen during gastrointestinal tract and prolong the drug's action time.
文摘目的对比发散式体外冲击波疗法与外用酮洛芬凝胶治疗肱骨外上髁炎的疗效。方法选取2016年3月至2016年6月中国武警总医院收治的40例肱骨外上髁炎患者为研究对象,采用随机数表法将所有患者分为冲击波组和酮洛芬组,每组各20例。通过评估两组患者治疗前、治疗结束后即刻、治疗后2个月的视觉模拟评分法(visual analogue scale,VAS)评分、美国特种外科医院(the hospital for special surgery,HSS)评分及Verhaar疗效评价系统评分,对比两种治疗方法的临床效果。结果治疗结束后即刻和治疗后2个月,两组患者的VAS评分均低于治疗前(P<0.05),HSS评分均高于治疗前(P<0.05),且冲击波组患者上述指标改善程度均优于酮洛芬组(P<0.05)。治疗结束后即刻对患者进行评价,冲击波组患者Verhaar疗效评价系统评分优良率可达85%,明显高于酮洛芬组(40%);治疗后2个月,酮洛芬组患者Verhaar疗效评价系统评分优良率有所下降(30%),冲击波组略有升高(90%)。结论发散式体外冲击波疗法与外用酮洛芬凝胶治疗肱骨外上髁炎的近期疗效均较好,但发散式体外冲击波治疗的远期疗效优于外用酮洛芬凝胶,且患者无不良反应发生,值得临床推广应用。
文摘建立了中空纤维离心超滤法进行样品前处理,以高效液相色谱法测定酮洛芬凝胶剂。利用中空纤维超滤膜特异性截留大分子以纯化样品,有效滤除了样品溶液中的大分子凝胶辅料,提高了分析的准确性和可重复性。采用C18色谱柱,流动相为0.05 mol/L磷酸二氢钾溶液（用磷酸调至p H 3.5）∶甲醇（25∶75）,检测波长255 nm。酮洛芬在0.25-10μg/ml范围内线性关系良好。平均回收率为100.8%-102.6%,RSD≤1.6%。
