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2%双醋瑞因滴眼液结膜囊多次与单次给药的角膜药代动力学差异 被引量:1
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作者 杨柯 陈世伟 +3 位作者 窦新岩 张晊瑞 金鑫 张红敏 《国际眼科杂志》 CAS 北大核心 2018年第4期630-633,共4页
目的:对比2%双醋瑞因滴眼液结膜囊多次给药与单次给药在角膜中的药代动力学差异,为临床医师治疗感染性角膜病时多次给药提供实验依据。方法:以2%双醋瑞因为实验滴眼液,选取健康无眼疾的雄性昆明白小鼠,随机分为多次给药组和单次给药组,... 目的:对比2%双醋瑞因滴眼液结膜囊多次给药与单次给药在角膜中的药代动力学差异,为临床医师治疗感染性角膜病时多次给药提供实验依据。方法:以2%双醋瑞因为实验滴眼液,选取健康无眼疾的雄性昆明白小鼠,随机分为多次给药组和单次给药组,双眼结膜囊分别给予双醋瑞因滴眼液。多次给药组间隔2min给药一次,共给药3次;单次给药组仅给药1次。用高效液相法测定角膜中双醋瑞因的代谢产物(大黄酸)的浓度,多次给药组和单次给药组的时间点均为5、15、30、60、120、180min。将小鼠角膜组织中的药物浓度经药物动力学程序(DAS2.1.1)进行拟合,并计算相关药动学参数。结果:结膜囊多次给药组和单次给药组各个时间点角膜中均可检测到其活性代谢产物大黄酸;多次给药组5、15、30、60、120、180min的浓度分别为318.678±40.88、210.02±25.66、188.83±31.74、112.24±11.70、90.28±22.01和57.67±13.71μg/g,单次给药组各时间点浓度分别为145.17±19.29、97.95±10.49、71.18±18.70、39.11±2.44、18.10±2.34和9.08±2.04μg/g。两组小鼠角膜中大黄酸的含量均于给药后5min最高,多次给药组浓度高于单次给药组浓度,差异具有统计学意义(P<0.01)。随时间延长大黄酸的浓度逐渐下降,3h后多次给药组浓度仍高于单次给药组,差异具有统计学意义(P<0.01)。单次给药组半衰期为0.89±0.31h。结论:结膜囊多次给药与单次给药相比具有药物有效浓度高、维持时间长的优点,双醋瑞因作为一种新的抗菌药物,可以在感染性角膜炎的早期对病程的发展起到抑制作用。多次给药后可以对急性发展期起到较好的治疗效果,而且在夜晚也可维持较高浓度,在保证患者的睡眠休息质量同时又起到了对疾病的治疗作用。 展开更多
关键词 结膜囊给药 双醋瑞因 多次 单次 药物代谢动力学
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Level of proinsulin in association with cardiovascular risk factors and sleep snoring
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作者 En-Zhi Jia Zhi-Jian Yang +8 位作者 shi-wei chen Guang-Yao Qi Chun-Fa You Jian-Feng Ma Jing-Xin Zhang Zhen-Zhen Wang Wei-Chong Qian Hai-Yan Wang Wen-Zhu Ma 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第32期5047-5052,共6页
AIM: To explore the relationship between the level of proinsulin with cardiovascular risk factors and sleep snoring.METHODS: Based on the random stratified sampling principle, 1 193 Chinese residents in Pizhou City, J... AIM: To explore the relationship between the level of proinsulin with cardiovascular risk factors and sleep snoring.METHODS: Based on the random stratified sampling principle, 1 193 Chinese residents in Pizhou City, Jiangsu Province (530 males and 663 females, aged 35-59 years with an average age of 46.69 years) were recruited. Their sleep snoring habits were investigated. Biotin-avidin based double mAbs ELISA was used to detect specific insulin and proinsulin, and a risk factor score was established to evaluate the individuals according to the number of their risk factors.RESULTS: The results of Spearman correlation analysis and covariate ANOVA analysis after age and sex were controlled, indicated that not only the level of proinsulin (r = 0.156, P = 0.000, F= 5.980 P = 0.000), but also cardiovascular risk factors score (r = 0.194, P = 0.000,F= 11.135, P = 0.000) significantly associated with the frequency of sleep snoring, and the significant relationship between true insulin and frequency of sleep snoring was only shown in the covariate ANOVA analysis (F = 2.868,P = 0.022). The result of multivariate stepwise logistic regression after age, sex, body mass index, waist circumference and true insulin were controlled showed that proinsulin (division by interval of quartile) was an independent risk factor for sleep snoring (OR = 1.220,95%CI: 1.085-1.373, P = 0.001).CONCLUSION: The interaction of cardiovascular risk factors clustering, high proinsulin level and sleep breathing disorder may be a syndrome, which has not been recognized in human beings so far. 展开更多
关键词 True insulin PROINSULIN SNORING EPIDEMIOLOGY
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