MTT法检测雷公藤内酯醇对晶状体上皮细胞增殖的影晌

目的:研究雷公藤内酯醇对体外培养的牛晶状体上皮细胞增殖的抑制作用。方法:取第4代对数生长期的牛晶状体上皮细胞培养24h后,加入重组人表皮生长因子(终浓度50μg/L)和不同浓度的雷公藤内酯醇(40,20,10μg/L),分别作用6,12,24,48,72h后,采用MTT法观察雷公藤内酯醇对牛晶状体上皮细胞增殖的影响。结果:不同浓度的雷公藤内酯醇,于不同时间作用在处于增殖状态的LECs,其增殖抑制率升高呈现明显的时间及剂量依赖性。结论:雷公藤内酯醇对晶状体上皮细胞增殖有明显的抑制作用在防止后囊混浊方面有广阔的前景。     

治疗成人进行性急性呼吸衰竭的一种新方法

本世纪60～80年代,处理成人进行性急性呼吸衰竭(ARF)的方法和技术发展很慢,远非令人满意,且发病率和死亡率甚高。低氧、高碳酸血症的ARF病人,通过呼吸机增加其病肺血气交换不足,这在多数情况下可维持病人生命和生理的稳定,但越来越认识到,呼吸机使用不当和/或过     

充血型缺血性心肌病临床特点的探讨

近六年来我院住院治疗20例充血型缺血性心肌病(CICM)和29例原发性扩张性心肌病(DCM)作对比分析,并对CICM的诊断与临床特点进行初步探讨。临床资料和结果 CICM,共计20例。同期间按1980年WHO关于心肌病的定义和分型。共收治PCM29例,将两组临床资料做x~2处理。     

Pacing and atrioventricular block

Over the past year, many studies have reported progress in cardiac pacing. Better understanding of the cardiovascular and neuroendocrinologic physiology and sophisticated technologic advances have contributed to the development of new therapeutic approaches. In this review, we discuss the relevant literature on temporary pacing, physiologic mechanisms involved during pacing, the importance of atrioventricular synchrony and rate responsiveness, recent technologic advances, interactions between pacemakers and defibrillators, and reports on therapy. In the field of atrioventricular block, emphasis is on the characterization of new causes and clinical presentation in special populations.