ADSORBENTS USED IN THE CLEARANCE OF ENDOTOXIN

A series of modified poly (methyl methacrylate, PMMA) resins were prepared and compared their adsorption abilities to endotoxin. The results showed that adsorbents, which were grafted with tertiary amine and long spacing arms, had the best adsorption capacities and good blood compatibility, It is hopeful to be used as adsorbent in hemoperfusion for clinical clearance of endotoxin. The influence of original concentration of endotoxin on adsorption and the adsorption mechanism were also investigated.     

介入、腹腔热灌洗、微泵三途径治疗胃肠道癌

对157例胃肠道癌切除术后病人， 随机分成术中腹腔温热灌洗化疗联合术后置泵持续动脉灌注及静脉微泵化疗组72例(简称治疗组)、单纯静脉化疗组85例(简称对照组)， 并对其腹腔转移率、 肝转移率及3 a生存率进行对照研究， 取得了较满意的临床疗效。 术中腹腔温热灌洗化疗联合术后置泵持续动脉灌注及静脉微泵化疗三途径综合治疗对胃肠道癌病人术后腹腔转移及肝转移有良好的防治作用。 157 cases of gastrointestinal cancer patients after resection were randomly divided into treated group and control group. The treated group (intraperitoneal hyperthermic perfusion chemotherapy combined with postoperative continuous intraarterial infusion and intravenous micro pump chemotherapy) consisted of 72 cases， the control group (Intravenous chemotherapy)， 85 cases. The peritoneal and hepatic metastasis rates and 3 a survival rate were studied. The intraperitoneal hyperthermic perfusion chemotherapy combined with the postoperative continuous intraarterial infusion and intravenous micro pump chemotherapy is an effective way to control the recurrence on the peritoneal and hepatic metastasis of advanced gastrointestinal neoplasms after operation.     

超声造影剂研究进展

本文综述超声造影剂的现状及新进展，在简要介绍造影剂物理原理的基础上，对超声造影剂在医学超声领域尤其是低速血流测量与组织灌注成像中的应用进行了总结与讨论，并介绍了用于实验研究和第二期临床试验的国际上最新的超声造影剂的特点，制备技术与评价方法。     

超声多普勒诊断的原理分析

多普勒效应是波在介质中传播时发生的一种物理现象，当波源和观察者相对介质运动时，观察者接收到波的频率和波源发射波的频率是不同的．医学研究和临床诊断中使用的超声血流测量仪、超声心脏测量仪、超声胎心检查仪等设备，就是利用超声波的多普勒效应来检测相应的量．下面我们从物理的角度对超声多普勒仪器的诊断原理进行分析．     

大鼠血液细胞介电谱的数学模型分析

利用Cole-Cole方程的数值计算大鼠血液细胞介电谱,并进行曲线拟合分析,确立正常大鼠血液细胞射频电生理特性.结果显示:在射频段大鼠血液细胞介电谱满足Cole-Cole数学方程,曲线拟合误差＜3%.     

太阳神奶对学龄前儿童全血中微量元素的影响

选择5～6岁儿童64名，随机分为两组，分别服用太阳神奶(A组)和一般乳酸奶(B组)，每天服用100mL。连服9周，检测全血中微量元素锌、铁、铜、钙、锰的变化。经检测，服用太阳神奶A组经统计学分析，微量元素锌、铁、锰呈显著或非常显著变化。     

Preparation and Blood Compatibility of Oxidized-chitosan Films

Chitosan membrane was modified by the selective oxidization of chitosan molecules on its surface with NO2 gas. FTIR spectra indicated there were plenty of -COOH and -COO groups on the modified membrane surface. The SEM study showed the modified membrane surface was rough rather than smooth as chitosan membrane. All antithrombosis test, hemolysis test and blood cell morphology observation with SEM revealed that modified chitosan membranes have superior blood compatibility to chitosan.     

血液中葡萄糖含量的伏安法测定

在磷酸盐生理缓冲溶液中，葡萄糖的浓度在一定范围内与循环伏法（ＣＶ）的峰电流线性关系，利用这一关系，进行了多份血液样品中葡萄糖含量的测定，并与例行的“葡萄糖氧化酶－氧化物酶比色法”（ＧＣＤ）测定的结果作比较，发现测定结果是满意的。     

固相萃取—紫外导数光谱法测定血中杀鼠迷和杀鼠灵

报道了血中杀鼠迷和杀鼠灵的固相萃取－紫外导数光谱测定方法。萃取使用ＧＤＸ３０１树脂吸附，二氯乙烷洗脱。该法操作简便快速，两种杀鼠剂以１０ｍｇ／Ｌ量加于血中，回收率分别为（８２９±２１）％及（９１０±２７）％（ｘ±ＲＳＤ）。血中两种杀鼠剂的检出限分别为１５ｍｇ／Ｌ和１２ｍｇ／Ｌ。