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目的探讨辛伐他汀对肺纤维化患者预后的影响。方法将120例肺纤维化患者随机均分为治疗组和对照组,对照组用泼尼松治疗,治疗组用泼尼松加辛伐他汀治疗,比较治疗前后的症状改善、肺活量、动脉氧分压、二氧化碳分压及影像学变化。结果治疗组总有效率79.17%,对照组总有效率68.33%,治疗组优于对照组(P<0.05)。2组患者的VC都提高(P<0.05),组间比较提高的幅度无显著性差异(P>0.05);2组的PO2都提高(P<0.05),组间比较治疗组提高幅度大于对照组(P>0.05);2组的PCO2都升高(P<0.05),但组间比较降低的幅度无显著性差异(P>0.05)。2组影像学改变无统计学差异(P>0.05)。 相似文献
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目的观察辛伐他汀的降血脂作用。方法高脂血症患者118例,用辛伐他汀20mg每晚1次,连服4周和8周后各复查血脂1次,进行疗效分析。结果4周后,血清胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)等水平均有下降,其中以TC降低最为明显。结论辛伐他汀降血脂疗效确切。 相似文献
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《化工之友》2008,(22)
目的观察辛伐他汀对高脂血症患者降脂治疗有效性和安全性。方法对60例高脂血症患者予晚间服辛伐他汀,剂量20mg,共8周,观察用药前后血浆总胆固醇、甘油三酯、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、谷丙转氨酶水平变化。结果治疗4周和8周后TG、TC、LDL-C均较前明显下降(P<0.01),HDL-C明显提高(P>0.05),治疗前后ALT无明显变化,整个治疗过程的严重不良反应有:2例出现轻微的ATL升高,占6.7%,停药后1周复查恢复正常。治疗前后尿素氮、肌酐及CPK无显著变化。不良反应轻,未出现肝功能、肾功能改变或加重的情况,能持续用药。结论辛伐他汀对高脂血症患者降脂治疗是有效和安全的。 相似文献
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辛伐他汀(Simvastatin)是胆固醇调节药物,通过抑制3-羟基-3-甲基戊二酰辅酶A(HMG-CoA)还原酶作用于甲羟戊酸途径,被证明可以通过减少致命的冠状动脉事件来提高临床试验的存活率。随着国内外对此研究的不断深入和完善,发现辛伐他汀除了降脂作用外,还具有抗纤维化、控制炎症、降低氧化应激、抗血栓、抗肿瘤等作用。本文就辛伐他汀在抗纤维化方面的机制进行综述。 相似文献
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建立了测定辛伐他汀中抗氧化剂叔丁基羟基茴香醚(BHA)含量的高效液相色谱方法.采用C18色谱柱(Supelcosil C18, 4.6 mm i.d.×33 mm,3 μm);流动相A为乙腈,流动相B为0.1 %磷酸水溶液;洗脱梯度为0~3 min 65 % B,3~3.5 min 65 %~45 % B,3.5~8.5 min 45 %~10 % B,8.5~9.5 min 10 % B,9.5~10 min 10 %~65 % B,10~11.9 min 65 % B,12 min stop.检测波长为292 nm,流速为3.0 mL·min-1,柱温为35 ℃.结果BHA与辛伐他汀及各杂质分离良好,BHA在0.1~0.9 μg·mL-1范围内峰面积与浓度呈良好的线性关系(r=0.9998),最低检出量为0.4 ng,回收率为99.3 %,相对标准偏差为1.0 %.该方法简便、快速、准确,可用于辛伐他汀中微量BHA的含量测定. 相似文献
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洛伐他汀提取工艺研究 总被引:1,自引:0,他引:1
通过实验研究确定了从洛伐他汀发酵液中提取洛伐他汀的最佳工艺条件。实验表明乙醇作为溶剂时,其最佳工艺条件:浸提温度45℃,物料比5∶1(乙醇/mL∶菌丝/g),浸提时间4h,闭环温度80℃,闭环时间5h。本工艺简便、收率高,适用于工业化生产。 相似文献
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In recent years, combination therapy has received growing popularity as a powerful therapeutic tactic for the treatment of diseases. The justifications and benefits of combination therapy are far‐reaching, including but not limited to addressing unmet medical needs such as cancer, malaria, and HIV/AIDS, improved clinical efficacy and safety with reduced dosage of a single medication, understanding the underlying science of the disease, alleviating pharmaco‐economic impacts, and better drug life‐cycle management. Using the ezetimibe/simvastatin combination therapy as a case study, a comprehensive overview of the successful discovery and development of the single‐pill combination, Vytorin, is presented in this review. A cursory introduction to combination therapy and the rationale for the ezetimibe/simvastatin combination for the treatment of hyperlipidemia provides an instructive entry point. The discovery and mode of action of simvastatin and ezetimibe monotherapies set the scene for a detailed discussion on the discovery and development of Vytorin, with emphasis on bioequivalency studies, clinical efficacy and safety profile studies, and the economic consequences of the single‐pill combination therapy. Large‐scale outcome clinical trials are also discussed to demonstrate the long‐term effects of Vytorin. 相似文献
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Lovastatin (Merck's Mevacor) is a statin drug designed to lower cholesterol, and reduce the risk of heart attack and stroke. We use electrospinning to combine the biomedical properties of lovastatin with the advantages of electrospun fibers to prepare a composite biomaterial for lovastatin delivery. Poly(l ‐lactic acid) (PLLA), a biodegradable and biocompatible polymer, was co‐spun with lovastatin. Incorporation of lovastatin at 5 or 10 wt % improved fiber alignment and surface smoothness, and increased fiber diameter. Influence of lovastatin on the phase structure (crystal, mobile amorphous, and rigid amorphous fractions) was investigated using scanning calorimetry and synchrotron X‐ray scattering. Addition of lovastatin resulted in increased crystallinity and reduced mobile amorphous fraction. PLLA fibers were characterized in terms of their drug release kinetics in comparison to PLLA film. High drug entrapment efficiency (ranging from 72% to 82%) and appropriate release profiles were achieved. In vitro drug release studies demonstrated that release occurred in two stages: an initial rapid release over the first day and a slower second stage of release which approached a plateau after 7 days. PLLA fibers have a higher release rate than comparable film. Electrospun biomaterial fibers of PLLA provide a promising new release strategy for delivery of lovastatin. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 45287. 相似文献
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建立了洛伐他汀烟酸缓释片中洛伐他汀释放度检测方法。取洛伐他汀烟酸缓释片按照《中国药典》洛伐他汀溶出度测定法进行溶出,以0.5%十二烷基硫酸钠磷酸盐缓冲溶液为溶剂,转速为100r·min-1,于45rain取样,采用高效液相色谱法测定释放度。色谱条件:以十八烷基硅烷键合硅胶为填充剂,以乙腈一O.5%磷酸溶液(4:1)为流动相,检测波长238nm,进样量20pL。洛伐他汀浓度在0.59--40.18μg·mL-1范围内与峰面积线性关系良好;回收率在99.0%~101.0%之间,相对标准偏差(RSD)为0.71%。该方法重复性好、稳定性高,适合洛伐他汀烟酸缓释片中洛伐他汀释放度的测定。 相似文献
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