Many types of drugs and agents used for cancer diagnosis and therapy often have low bioavailability and insufficient efficacy,as well as causing various side effects due to their nonspecific delivery.Nanocarriers with...Many types of drugs and agents used for cancer diagnosis and therapy often have low bioavailability and insufficient efficacy,as well as causing various side effects due to their nonspecific delivery.Nanocarriers with purposely-designed compositions and structures have shown varying degrees of abilities to deliver these compounds towards cancers in passive or active manners.Despite the availability of a variety of materials for the construction of nanocarriers,natural polymers with good biocompatibility and biodegradability are preferable for such usage because of their high in vivo safety as well as easy removal of degradation products.Among the natural polymers intended for building nanocarriers,hydroxyethyl starch and its derivatives have gained tremendous attention in the field of drug delivery in the form of nanomedicines over the last decade.There is growing optimism that ever more hydroxyethyl starch-based nanomedicines will be a significant addition to the armoury currently used for cancer diagnosis and therapy.展开更多
目的:观察高渗氯化钠羟乙基淀粉40(HSH40)注射液治疗创伤性脑损伤脑水肿的疗效及安全性。方法:将64例颅脑损伤患者随机分为试验组和对照组(各32例),在综合治疗基础上分别予HSH40和20%甘露醇治疗。检测两组颅内压(ICP)、血浆渗透压、平...目的:观察高渗氯化钠羟乙基淀粉40(HSH40)注射液治疗创伤性脑损伤脑水肿的疗效及安全性。方法:将64例颅脑损伤患者随机分为试验组和对照组(各32例),在综合治疗基础上分别予HSH40和20%甘露醇治疗。检测两组颅内压(ICP)、血浆渗透压、平均动脉压(MAP)、脑灌注压(CPP)、血清Na+浓度、肾功能等指标。结果:与给药前相比较,两组给药后ICP均明显下降(P<0.05),但对照组总的下降水平低于试验组,回升速度也大于试验组,于60 m in时对照组ICP即明显高于试验组,两者差异有统计学意义(P<0.05)。给药后试验组各时间点CPP均高于给药前,并高于对照组同时间点(P<0.05);而对照组与给药前相比无显著性升高,差异无统计学意义(P>0.05)。给药后试验组各时间点血清Na+浓度均高于给药前,并高于对照组同时间点(P<0.05);而对照组较给药前无显著性升高,差异无统计学意义(P>0.05)。两组各时间点血浆渗透压均明显升高,高于给药前(P<0.05)。结论:HSH40治疗创伤性脑损伤后脑水肿效果确切且较为安全,降低ICP效果优于20%甘露醇,能较长时间维持ICP于较低水平,并可同时提高CPP,且肾功能损害等毒副作用轻。展开更多
基金This work was financially supported by the National Key Research and Development Program of China(No.2017YFC1103800).
文摘Many types of drugs and agents used for cancer diagnosis and therapy often have low bioavailability and insufficient efficacy,as well as causing various side effects due to their nonspecific delivery.Nanocarriers with purposely-designed compositions and structures have shown varying degrees of abilities to deliver these compounds towards cancers in passive or active manners.Despite the availability of a variety of materials for the construction of nanocarriers,natural polymers with good biocompatibility and biodegradability are preferable for such usage because of their high in vivo safety as well as easy removal of degradation products.Among the natural polymers intended for building nanocarriers,hydroxyethyl starch and its derivatives have gained tremendous attention in the field of drug delivery in the form of nanomedicines over the last decade.There is growing optimism that ever more hydroxyethyl starch-based nanomedicines will be a significant addition to the armoury currently used for cancer diagnosis and therapy.
文摘目的:观察高渗氯化钠羟乙基淀粉40(HSH40)注射液治疗创伤性脑损伤脑水肿的疗效及安全性。方法:将64例颅脑损伤患者随机分为试验组和对照组(各32例),在综合治疗基础上分别予HSH40和20%甘露醇治疗。检测两组颅内压(ICP)、血浆渗透压、平均动脉压(MAP)、脑灌注压(CPP)、血清Na+浓度、肾功能等指标。结果:与给药前相比较,两组给药后ICP均明显下降(P<0.05),但对照组总的下降水平低于试验组,回升速度也大于试验组,于60 m in时对照组ICP即明显高于试验组,两者差异有统计学意义(P<0.05)。给药后试验组各时间点CPP均高于给药前,并高于对照组同时间点(P<0.05);而对照组与给药前相比无显著性升高,差异无统计学意义(P>0.05)。给药后试验组各时间点血清Na+浓度均高于给药前,并高于对照组同时间点(P<0.05);而对照组较给药前无显著性升高,差异无统计学意义(P>0.05)。两组各时间点血浆渗透压均明显升高,高于给药前(P<0.05)。结论:HSH40治疗创伤性脑损伤后脑水肿效果确切且较为安全,降低ICP效果优于20%甘露醇,能较长时间维持ICP于较低水平,并可同时提高CPP,且肾功能损害等毒副作用轻。
