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81.
Nicole C. Naus Gregorius P. M. Luyten Theo Stijnen Paul T. V. M. De Jong 《Documenta ophthalmologica. Advances in ophthalmology》1995,90(1):53-59
In this study we wanted to investigate the post-operative astigmatism and visual acuity after phacoemulsification and conventional extracapsular cataract surgery. Patients operated between April and June 1993 (n=150) were retrospectively analyzed. The patients were examined prior to surgery and at day 1, at day 10, and in week 6 post-operatively. The difference between the post-operative log mean visual acuity in the Phaco group and in the CECCE group was significant after 1 and 10 days, however it was not significant (p=0.191) after 6 weeks. The mean astigmatism was significantly less in the Phaco group than in the CECCE group during the whole post-operative check-up period. This study suggests that Phaco results in a lower post-operative astigmatism and an earlier visual rehabilitation compared to the CECCE technique.Abbreviations Phaco
Phacoemulsification
- CECCE
Conventional extracapsular cataract extraction 相似文献
82.
Kazuo Kitagawa Masayasu Matsumoto Keisuke Kuwabara Masafumi Tagaya Toshiho Ohtsuki Ryuji Hata Hirokazu Ueda Nobou Handa Kazufumi Kimura Takenobu Kamada 《Brain research》1991,561(2)
We investigated the effects of mild and non-lethal ischemic insult on neuronal death following subsequent lethal ischemic stress in various brain regions, using a gerbil model of bilateral cerebral ischemia. Single 10-min ischemia consistently caused neuronal damage in the hippocampal CA1, CA2, CA3 and CA4, layer III/IV of the cerebral cortex, dorsolateral part of the caudoputamen and ventrolateral part of the thalamus. On the other hand, in double ischemia groups, 2-min ischemic insult 2 days before 10-min ischemia exhibited significant protection in the CA1 and CA3 of the hippocampus, the cerebral cortex, the caudoputamen and the thalamus. Five-min ischemic insult 2 days before 10-min ischemia also showed protective effect in the same areas as those of 2-min ischemia except for the CA1 region of the hippocampus, while 1-min ischemic insult exhibited no protective effect in any brain regions. In the immunoblot analysis, both 2- and 5-min ischemia caused increased synthesis of heat shock protein 72 (HSP 72) in the hippocampus, but 1-min ischemia did not. The present study demonstrated that the ‘ischemic tolerance’ phenomenon was widely found in the brain and also suggested that ischemic treatment severe enough to cause HSP 72 synthesis might be needed for induction of ‘ischemic tolerance’. 相似文献
83.
热休克蛋白70在大鼠胰腺移植后急性排斥反应诊断中的意义 总被引:1,自引:0,他引:1
目的 探讨热休克蛋白 (HSP) 70在大鼠胰腺移植急性排斥反应诊断中的意义。方法 建立大鼠全胰、十二指肠移植模型 ,用免疫组织化学及WesternBlotting法定量检测移植胰腺组织中HSP70的表达 ,并观察其与病理学检查的相关性。结果 同基因移植组移植胰腺HSP70的表达水平在术后无明显变化 (P >0 .0 5) ;异基因移植组移植胰腺HSP70的表达水平在术后第 3、5和 7d逐渐升高 (P <0 .0 1 ) ,而且与病理学评分之间存在着明显的正相关 (P <0 .0 1 ,r =0 .934)。结论 检测HSP70在移植胰中的表达对急性排斥反应的早期诊断有一定价值 相似文献
84.
85.
A. C. Van Den Berkt Dr P. W. T. De Waard J. H. Pameijer 《Documenta ophthalmologica. Advances in ophthalmology》1992,82(1-2):1-7
We compared the surgically induced astigmatism after standard extracapsular cataract extraction (ECCE) with the astigmatism following cataract extraction by phacoemulsification. The surgically induced corneal astigmatism was assessed on several occasions, ranging from one day to one year postoperatively. After phacoemulsification, this astigmatism was considerably slighter than after ECCE on day 1 postoperatively and after two and six weeks. However, one year postoperatively, this difference was less clear. We then measured slight against-the-rule astigmatism for both surgical techniques. 相似文献
86.
87.
88.
复方制剂中氨基比林与溴甲酚绿形成稳定的离于对,用氯仿萃取后在416.8nm处测定吸收度.回收率为99.80%,相对标准偏差为0.92%(n=5)。方法简便快速,结果准确可靠。 相似文献
89.
茶叶多糖是一种复合杂多糖,具有许多生物活性。作者系统地介绍了茶叶多糖的提取、分离、纯化、纯度鉴定及相对分子质量测定的方法,以及其含量和组成、理化性质、化学结构及空间构象、生物活性等方面的研究进展,并对上述方法及研究进展进行了分析和评述。 相似文献
90.
BACKGROUND: Long-term intra-oesophageal acid suppression with proton pump inhibitors represents a management option for Barrett's oesophagus and severe reflux oesophagitis, but its stability over time has not been adequately assessed. AIM: Our aim was to evaluate prospectively the efficacy of proton pump inhibitors in suppressing intra-oesophageal acidity after 2-year continuous treatment. METHODS: Forty-five patients with Barrett's oesophagus or severe reflux oesophagitis on a proton pump inhibitor regimen (once or twice daily) that normalised the total percentage acid exposure time were re-evaluated by means of 24-h oesophageal pH-monitoring after 2-year of continuous unmodified treatment. RESULTS: A significant rise in the total percentage acid exposure time was observed at 2-year follow-up (P=0.029), owing to an increased value in 27 (60%) cases (9 on a twice daily regimen), higher than normal in 10 of them (22% of the whole group) (3 on a twice daily regimen). In 18 patients (40%) the total percentage acid exposure time was stable or decreased. Heartburn remained efficiently suppressed in all patients. CONCLUSIONS: The efficacy of proton pump inhibitors in suppressing intra-oesophageal acidity during continuous treatment may decrease over time, up to abnormal levels of oesophageal acid exposure in a minority of cases. This may occur without heartburn recurrence and with both once and twice daily regimens. 相似文献