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11.
维甲酸硅油的视网膜毒性实验研究 总被引:1,自引:0,他引:1
目的:了解维甲酸硅油对视网膜是否产生毒性。
方法:12只新西兰白兔的24只眼,随机分为3组,行气体压迫玻璃体手术3天后,分别向玻璃体腔内注入硅油(4只眼)、5μg/ml维甲酸硅油(10只眼)、10μg/ml维甲酸硅油(10只眼)各
0.5m1,用检眼镜、光漳和电镜检查来观察视网膜变化情况。
结果:注入硅油28天后,未发现各浓度的维甲酸硅油对视网膜产生毒性作用。结论:浓度为5、10μg/ml的维甲酸硅油注入玻璃体腔4周,对视网膜不产生毒性作用。
(中华眼底病杂志,1997,13:81-82) 相似文献
12.
Angel J. Amante Herwig-Ulf Meier-Kriesche Linda Schoenberg B. D. Kahan 《Transplant international》1997,10(3):217-222
The initial poor absorption of the corn oil-based, gel capsule oral formulation of cyclosporin (CyA) greatly limits its use
for inception of immunosuppressive therapy. Insufficient drug concentrations during the early post-transplant period predispose
to renal allograft rejection. The present study served to compare the time required to achieve therapeutic CyA concentrations
after de novo administration of the corn oil-based gel capsule (CyA-GC; n = 11) versus the microemulsion (CyA-ME; n = 11) formulation of CyA. During the 1st month after renal transplantation, patients underwent serial pharmacokinetic profiling
from which we obtained observed and dose-corrected values of several parameters. Although patients in neither the CyA-GC nor
the CyA-ME group adequately absorbed the drug during days 0–2, from day 3 to 4 patients in the CyA-ME group showed significantly
greater absorption than those in the CyA-GC group (P = 0.041). Patients in the CyA-ME group reached the 1st month target average concentration (Cav) values ( ≥ 550 ng/ml) earlier than those in the CyA-GC group and required significantly lower daily CyA doses (P = 0.018). We conclude that therapeutic CyA levels can be achieved more rapidly and with lower doses of the drug after de
novo administration of CyA-ME than with CyA-GC.
Received: 13 September 1996 Accepted: 7 January 1997 相似文献
13.
鱼油抗大鼠实验性心律失常作用 总被引:5,自引:2,他引:3
鱼油口服给药1.4 ml/kg·d,连续15d能显著升高氯化钡致大鼠心律失常的阈剂量(P<0.05),降低心律失常的严重程度(P<0.05),60 min内窦性心率恢复率为85.7%(P<0.01),死亡率为0。心肌细胞膜脂肪酸分析显示,鱼油影响大鼠心肌细胞膜脂肪酸组成,升高DHA含量(P<0.05),降低AA含量及AA/DHA比值(P<0.01)。多元逐步回归分析表明,鱼油的抗心律失常作用与其升高心肌细胞膜DHA含量有关,相关系数为r=-0.5872(P<0.01)。 相似文献
14.
15.
橄榄油对单核吞噬细胞系统的影响 总被引:1,自引:0,他引:1
本文采用橄榄油皮下注射、观察其对小鼠腹腔单核吞噬细胞的游出、活化及吞噬功能。结果发现、橄榄油对上述功能均有明显的抑制作。 相似文献
16.
17.
灰星鲨肝油中甘油酯类与烃类的高效液相色谱分离 总被引:1,自引:1,他引:0
采用高效液相色谱法,有效地分离鲨鱼肝油中的两类主要成份甘油酯和烃类。 相似文献
18.
Guidotti T. L.; Watson L.; Wheeler M.; Jhangri G. S. 《Occupational medicine (Oxford, England)》1996,46(4):265-274
This is the first round in a series of surveys conducted inFort McMurray as part of the Fort McMurray Demonstration Projectin social marketing. This component of the survey was intendedto focus on the most prominent group of employed workers inthe community and to compare their patterns of response withthe community as a whole. Respondents to the survey were overwhelminglymale (96%), married (72.9%) and living in households of twoto five persons (87.9%). They were predominantly aged 30–44(55%) and graduates of high school (53.5%). Younger male workers(below age 30) were more likely to have a high school diploma(78.3%) or some additional technical or vocational training(21.7% compared to 12.5% overall) and to be unmarried or separated.Attitudes toward safety-related behaviours were stronger thanfor respondents from the community as a whole. Approximately70–100% of all age groups and both sexes showed strongagreement with attitudes involving child car seats and the unacceptabilityof drinking and driving. These attitudes include strong advocacyof vigorous enforcement of occupational health and safety standards.However, they showed a variability similar to the communityas a whole in behaviour at home compared to work, generallyreporting more consistent use of personal protection on thejob than in their own homes, particularly hearing protection.Even so, they were much less likely to perform stretching andwarm-up exercises prior to exertion than community residentsin general. The potential may exist to transfer the technologyand attitudes from workplace health and safety to communitysafety. One possible strategy to accomplish this is to involveworkers in this industry directly in community initiatives.This strategy may be generalizable to any community in whichthere are major employers who place a heavy emphasis on riskcontrol and occupational health and safety. 相似文献
19.
L. Marzio F. Di Felice V. Celiberti O. Pieramico L. Grossi M. DiGioacchino B. P. Imbimbo F. Cuccurullo 《European journal of clinical pharmacology》1990,39(4):369-372
Summary To evaluate the influence of the stomach and the cholinergic system on gallbladder contraction induced by physiological stimuli, the reduction in gallbladder volume in 7 healthy volunteers has been studied by real-time ultrasonography after the oral and intraduodenal administration of olive oil, preceded by pretreatment with cimetropium bromide or placebo. After an overnight fast, each subject swallowed 50 ml olive oil or it was administered through a naso-duodenal tube in the proximal duodenum. Cimetropium bromide 5 mg or placebo was given intravenously under double-blind control.After the placebo pretreatment, gallbladder contraction was greater and faster after intraduodenal oil than after oral oil. Cimetropium bromide decreased the extent, velocity and duration of gallbladder contraction induced by intraduodenal olive oil but it only reduced the velocity of the contraction induced by oil given orally.It is concluded that in normal human subjects the stomach modulates the extent and velocity of postprandial gallbladder contraction and that anticholinergic agents antagonize the gastric and duodenal phases of the response of the gallbladder to a meal. 相似文献
20.