首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到17条相似文献,搜索用时 78 毫秒
1.
目的:探讨复方氯化血红素胶囊中主要成分氯化血红素和β-胡萝卜素含量测定方法。方法:用0.1mol·L~(-1)氢氧化钠液和氯仿对氯化血红素和β-胡萝卜素进行萃取分离,用分光光度 法进行含量测定,测定波长分别为(385±1)nm和(455±1)nm。结果:氯化血红素的平均回收率为99.78%,RSD为0.86%;β-胡萝卜素的平均回收率为98.76%,RSD为0.93%。结论:本方法操作简单、快速,测定结果准确、可靠,可用于本胶囊的含量测定。  相似文献   

2.
氯化血红素抗贫血疗效和毒性   总被引:4,自引:0,他引:4  
目的:探讨氯化血红素(hemin)治疗贫血的疗效及其口服的毒性反应,方法:用自制的hemin按每日93,168,300mg.kg^-1治疗失血性贫血大鼠,并与葡萄糖酸亚铁(FG300mg.kg^-1.d^-1)治疗组及单纯给水组比较,24h内对20只小鼠予hemin6g.kg^-1灌胃以观察小鼠的急性毒性反应,对80只大鼠连续3个月分别予hemin0.65,1.3,2.6g.kg^-1.d^-1灌  相似文献   

3.
超声波法提取氯化血红素的研究   总被引:9,自引:0,他引:9  
文章详细报导了一种氯化血红素(Hemin)提取新方法,在20%的加水量,超声溶血10min和提取15min的条件下,Hemin的收率和纯度分别达到了90%和96%。采用此方法不但降低了生产成本和生产周期,而且还避免了使用对环境有污染的氯仿和吡啶等溶剂。  相似文献   

4.
报导了一种氯化血红素(Hemin)脱铁的 TBP萃取新方法,在萃取时间1 h,萃取剂磷酸三丁酯(TBP)加入量为Fe量的10~20倍,盐酸加入量为硫酸体积的 1/3,稀释剂选用非极性的苯和萃取温度 40℃等条件下,氯化血红素的脱铁率和血卟啉及血卟啉衍生物的含量分别达到了 99.01%和 95.05%。采用此方法不但降低了生产成本,而且还缩短了生产周期。  相似文献   

5.
氯化血红素的盐酸丙酮法提取工艺及含量测定的方法   总被引:4,自引:0,他引:4  
  相似文献   

6.
目的 :以氯化血红素和 β 胡萝卜素为主药 ,制备复方氯化血红素胶囊 ,并考察其溶出度。方法 :将氯化血红素和 β 胡萝卜素分别制成 β 环糊精包合物后 ,再按胶囊的一般制备方法制成胶囊。采用萃取 分光光度法测定复方氯化血红素胶囊中氯化血红素和 β 胡萝卜素的含量 ;以人工肠液为溶出介质 ,按中国药典溶出度测定 ,转速 10 0r·min-1,试验温度 (37± 0 .5 )°C。结果 :所制备的复方氯化血红素胶囊质量稳定 ,溶出度考察结果 ,氯化血红素和 β 胡萝卜素在30min时的累积溶出度均大于 70 %。结论 :本胶囊的制备方法可行 ,质量可控 ,溶出度符合中国药典规定  相似文献   

7.
氯化血红素抗贫血疗效和毒性   总被引:2,自引:0,他引:2  
目的:探讨氯化血红素(hemin)治疗贫血的疗效及其口服的毒性反应.方法:用自制的hemin按每日93,168,300mg·kg-1治疗失血性贫血大鼠,并与葡萄糖酸亚铁(FG300mg·kg-1·d-1)治疗组及单纯给水组比较.24h内对20只小鼠予hemin6g·kg-1灌胃以观察小鼠的急性毒性反应.对80只大鼠连续3个月分别予hemin065,13,26g·kg-1·d-1灌胃,观察大鼠的长期毒性反应.结果:治疗后各组Hb变化依次为66→121,71→141,66→148,69→141,67→112g·L-1;观察7d未见小鼠急性毒性反应;用药3个月后对80只大鼠进行血象检查、肝肾功能检查及15个脏器组织活检均未见明显异常.结论:Hemin抗贫血疗效优于FG;口服无任何毒副作用.  相似文献   

8.
氯化血红素胶囊的研制及临床疗效   总被引:19,自引:0,他引:19  
袁曦  林建生 《中国药房》1996,7(1):17-18
本文介绍了氯化血红素胶囊的制备工艺、质量标准、药效学、稳定性及临床疗效观察。经临床治疗缺铁性贫血(IDA)患者120例,取得显著疗效,其中治愈率为60.9%,总有效率为96.2%,无胃肠道副作用,是一种治疗IDA理想的新型铁剂。  相似文献   

9.
紫外光谱法测定强力铁胶囊中氯化血红素含量   总被引:4,自引:0,他引:4  
《现代应用药学》1996,13(1):36-37
  相似文献   

10.
紫外分光光度法测定氯化血红素口服液含量   总被引:5,自引:0,他引:5  
袁曦  洪清 《中国药房》1994,5(6):36-37
氯化血红素(Hemin)治疗缺铁性贫血已逐渐受到人们的重视,但其含量测定方法未见报道。本文采用紫外分光光度法在384±1nm波长处,测定其口服液中氯化血红素的含量。线性范围为1.8~9.1μg/ml,相关系数γ=0.9999,平均回收率99.32%,RSD=1.17%。本法操作简便,重现性好,结果准确可靠。  相似文献   

11.
陈明非  袁曦  林媛 《海峡药学》2006,18(5):52-53
目的建立氯化血红素缓释固体分散体中铁离子的含量测定方法。方法将多氯化血红素缓释固体分散体用硝酸硝化后,游离出铁离子,加入一定量的邻菲罗啉与之络合成橙红色络合物,用分光光度法测定吸光度。结果结果显示,铁离子与邻菲罗啉生成的络合物,在(510±2)nm波长处有最大吸收,浓度在0.4-2.8μg.mL-1时,浓度与吸光度呈良好的线性关系(r=0.9997)。平均回收率为98.32%,RSD=0.63%(n=5)。结论本法操作简便,结果准确。可做为氯化血红素缓释固体分散体中铁离子的含量测定。  相似文献   

12.
原子吸收分光光度法测定血红素口服液中铁的含量   总被引:3,自引:0,他引:3  
目的建立用原子吸收分光光度法测定血红素口服液中铁的含量的方法。方法样品经消化后,用原子吸收分光光度法测定铁的含量。结果铁在1~5μg·mL-1范围内,吸光度与浓度呈良好的线性关系,回归方程为A=0.079×C 0.004,r=0.999,平均回收率100.15%,RSD=0.67%%。结论该方法简便、快速、准确。  相似文献   

13.
氯高铁血红素的抗贫血作用   总被引:5,自引:0,他引:5  
SD大鼠应用活血性贫血和失血性贫血两种病理模型,给予氯高铁血红素ig75~300mg/kg,连续7d。以血红蛋白定量为主要指标并观察一般体征、体重以及红细胞计数。结果表明;氯高铁血红素能使贫血大鼠血红蛋白和红细胞数明显提高,贫血状态显著改善,体重增加,动物的一般体征恢复正常。在与阳性对照药葡萄糖酸亚铁相同剂量下(300mg/kg),氯高铁血红素对贫血的纠正作用更为明显。  相似文献   

14.
The anti-influenza activity of hemin, an inducer, activator and the substrate of heme oxygenase-1 (HO-1), was examined both in vitro and in vivo. The human lung carcinoma cell line A549 was used to evaluate the in vitro effect of hemin on influenza A virus (IAV) replication. A mouse model was used to examine the in vivo activity of hemin. Observation indexes included survival rate and body weight of mice, virus load and pathological examination of the lungs, and characterization of the systemic and local immune responses. The results showed that hemin could induce HO-1 expression in A549 cells and inhibit IAV replication in vitro. The in vivo results showed that injection of hemin could protect mice from death and body weight loss caused by IAV infection. Hemin was administered both at initial and progressive stages of influenza pneumonia (1 day and 4 days after virus infection, respectively) and showed significant anti-influenza activity under both conditions. However, the results showed that although hemin could induce HO-1 expression in vivo, it could not inhibit IAV replication in vivo. Pathological examination showed that hemin significantly attenuated lung tissue injury caused by IAV. Further study showed that hemin could regulate the immune response to IAV infection by reducing lymphocytopenia and local inflammatory cytokine increases caused by IAV infection. This study shows that hemin has the potential for the treatment of IAV infection and its effect may be due to attenuation of lung injury and regulation of the immune response.  相似文献   

15.

Background

Chronic nicotine administration impairs reflex chronotropic responses that follow arterial baroreceptor unloading in female rats with repleted, but not depleted (ovariectomized, OVX), estrogen (E2). This study investigated whether products of nitric oxide synthase (NOS) and/or heme oxygenase (HO) and related soluble guanylate cyclase (sGC)/phosphatidylinositol 3-kinase (PI3K)/mitogen-activated protein kinases (MAPKs) signaling mediate the E2-sensitive depressant effect of nicotine on reflex tachycardia.

Methods

Baroreflex curves relating reflex tachycardic responses to falls in blood pressure (BP) generated by sodium nitroprusside (SNP) were established in conscious female rats and slopes of the curves were taken as measures of baroreflex sensitivity (BRS).

Results

Nicotine (2?mg/kg/day ip, 14?days) reduced BRS in OVX rats treated with E2 but not vehicle. Baroreceptor dysfunction in nicotine-treated OVXE2 rats was abolished after iv treatment with hemin (HO inducer) but not l-arginine (NOS substrate) denoting the importance of reduced availability of carbon monoxide, but not NO, in the nicotine effect. The favorable BRS effect of hemin was abolished after intracisternal (ic) administration of L-NAME (NOS inhibitor) or wortmannin (PI3?K inhibitor). Central circuits of MAPKs do not seem to contribute to the baroreflex facilitatory effect of hemin because the latter was preserved after central inhibition of MAPKERK (PD98059), MAPKp38 (SB203580) or MAPKJNK (SP600125). Likewise, sGC inhibition (ODQ) or E2 receptor blockade (ICI182780) failed to alter the hemin effect.

Conclusion

The activation of central NOS/PI3K signaling following HO upregulation improves the E2-dependent depressant effect of nicotine on reflex tachycardia.  相似文献   

16.
HPLC法测定养阴清肺丸中5-羟甲基糠醛的含量   总被引:1,自引:0,他引:1       下载免费PDF全文
康强  孔令峰 《中国药师》2013,(6):856-858
摘 要 目的:建立养阴清肺丸中5 羟甲基糠醛含量的测定方法,考察不同企业养阴清肺丸中5-羟甲基糠醛的含量差异。方法: 采用高效液相色谱法。色谱柱为Agilent C18(250 mm×4.6 mm, 5μm)柱,柱温为30℃,流动相为甲醇-水(10∶90),流速0.8 ml·min-1,检测波长:284 nm,进样量为10 μl。结果:5-羟甲基糠醛进样量在0.020 2~0.404 0 μg范围内与峰面积积分值呈良好的线性关系(r=1.000 0);平均加样回收率为101.52%,RSD=2.7%(n=6)。结论:该方法简便、准确、灵敏度高、重复性好,可用于养阴清肺丸中5 羟甲基糠醛的含量测定。  相似文献   

17.
目的:建立替硝唑葡萄糖注射液中5-羟甲基糠醛(5-HMF)的测定方法。方法:用双波长分光光度法,以水为溶剂,在波长为284.0及348.7nm处测定。结果:以A284.0为标示值的5-HMF溶液的ΔA与A284.0成良好的线性相关,平均回收率为100.7%,RSD为1.79%。结论:本方法简便快速,准确可靠。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号