水蛭注射液对大白鼠血小板粘附和血小板聚集功能的影响

目的　探讨水蛭注射液对大白鼠血小板粘附性和聚集性的影响。方法　采用大白鼠 2 4只 ,随机分成两组 ,实验组给药 ,对照组以实验组同样的方法和剂量给予生理盐水 ,5d后由颈总动脉取血 ,做血小板粘附性和聚集性试验。结果　水蛭注射液对大鼠血小板粘附性和聚集性具有显著的抑制作用 ,实验组与对照组抑制率有显著的统计学意义 (P <0 0 0 1)。结论　水蛭注射液能够抑制大白鼠血小板的粘附和聚集。     

Action of intravenously administered talipexole on the rat striatal neurons receiving excitatory input from nigral dopamine neurons

Electrophysiological studies using rats anesthetized with chloral hydrate were performed to elucidate whether or not intravenously injected talipexole acted as a D₂ receptor agonist on the striatal neurons in comparison with the action of bromocriptine. The activities of the striatal neurons were extracellularly recorded using a glass microelectrode attached along a seven-barreled micropipette, each barrel of which was filled with talipexole, bromocriptine, SCH23390 (D₁ antagonist), domperidone (D₂ antagonist), glutamate or 2 M NaCl. These drugs were iontophoretically applied to the immediate vicinity of the target neuron being recorded. The effects of talipexole and bromocriptine were examined on the neurons, whose spikes (induced by the stimulation of the substantia nigra pars compacta) were inhibited by the iontophoretic application of domperidone. Iontophoretic application of talipexole or bromocriptine increased spontaneous firing of these neurons and this increase in firing was also inhibited by iontophoretically applied domperidone. In the same neurons, intravenously administered talipexole (0.01, 0.02 and 0.04 mg/kg) dose-dependently increased firing, and this increase was inhibited by microiontophoretically applied domperidone, but not by SCH23390. On the other hand, the intravenous injection of bromocriptine (0.1, 0.2 and 0.4 mg/kg) also increased the firing rate. However, the increase was not dose-dependent and fluctuated; the firing transiently decreased during the increase in firing with intravenously administered bromocriptine. However, the bromocriptine-induced increase in firing was also suppressed by domperidone, and decrease in firing was inhibited by SCH23390. These findings suggest that talipexole acts as a D₂ agonist on the striatal neurons receiving input from substantia nigra pars compacta and increases firing when intravenously applied. However, intravenously administered bromocriptine appears to act as both a D₂ agonist and probably as a D₁ agonist on the striatal neurons to increase and decrease firing, respectively.     

麝香注射液对脑梗死患者血液流变学及甲襞微循环的影响

目的 探讨麝香注射液对脑梗死患血液流变学及甲襞微循环的影响。方法 对60例脑梗死急随机分成治疗组和对照组，治疗组予麝香注射液，对照组予复方丹参、低分子右旋糖酐治疗。于治疗前后分别测定上述指标。结果 麝香注射液治疗后血液流变学检查各项指标均显下降，且甲襞微循环血液流速流态等均有显改善。结论 麝香注射液能明显改善血液流变学异常及微循环障碍，在防治脑梗死中有重要价值。     

Intra-operative quick insulin assay to confirm complete resection of insulinomas guided by selective arterial calcium injection (SACI)

Background and aims Insulinomas are rare endocrine disorders. Pre-operatively, conventional imaging techniques often fail to localise the tumor. In addition, due to the lack of quick insulin assays, intra-operative confirmation of complete resection was impossible until recently. Materials and methods Six patients with biochemical evidence of an insulinoma underwent pre-operative localisation studies and selective arterial calcium injection (SACI). In addition, insulin was measured before surgery and every 10–15 min after resection of the tumor using a quick insulin assay. Results Pre-operative localisation studies identified the tumor correctly as follows: endosonography: three of four, magnetic resonance imaging: two of four and SACI: six of six. Tumors in the head and body were enucleated while those in the tail were resected (n = 2, each). Those three patients, in whom magnetic resonance imaging and/or endosonography could localise the tumors pre-operatively, underwent laparoscopic surgery while the remaining three patients underwent open surgery. Intra-operatively, insulin dropped to normal levels within 20 min in all cases. After a follow-up of 0.8–3 years, all patients remained biochemically cured. Conclusions Pre-operatively, SACI appears to be a very sensitive localisation technique and may be most helpful in guiding the surgeon if conventional imaging techniques fail to localise the tumor. Complete removal of an insulinoma can be reliably predicted using a quick insulin assay. This paper was presented at the 2nd Biennial Meeting of the European Society of Endocrine Surgeons (ESES), May 18–20, 2006, Krakow, Poland.     

Intravitreal injection of 0.3 ml of SF6 gas for persistent subfoveal fluid after scleral buckling for rhegmatogenous retinal detachment

Purpose  To determine the efficacy of intravitreal injection of sulphur hexafluoride (SF6) gas for reducing persistent subfoveal fluid after scleral buckling surgery for macula-off rhegmatogenous retinal detachments. Methods  We injected 0.3 ml of SF6 gas into the vitreous cavity of two eyes of two patients with persistent macular retinal detachment 3 and 5 months after successful scleral buckling. Optical coherence tomography was performed before and after surgery. Results  Subfoveal fluid was displaced peripheral to the fovea immediately after gas injection and the fluid was absorbed gradually in both eyes. Conclusions  Persistent subfoveal fluid after scleral buckling may be treated with intravitreal SF6 gas injection. The authors have no proprietary interest in any aspect of this report     

血必净注射液对急性冠脉综合征炎症递质和预后的影响

目的探讨血必净注射液对急性冠脉综合征患者炎症递质以及预后的影响。方法将2005年4月—2009年2月收入我院心内科90例患者随机分为治疗组46例和对照组44例,对照组按照常规治疗,治疗组在对照组的基础上加用血必净注射液50 mL,每日2次,治疗7 d。采用ELISA法检测IL-6、IL-10、CRP。记录患者28 d主要心血管事件发生率。结果疗程结束时治疗组IL-6、CRP明显低于对照组(P<0.05,P<0.01),IL-10高于对照组(P<0.05);治疗组心绞痛恶化率(4%)、心肌梗死发生率(2%)较对照组(18%,16%)明显降低(P均<0.05),对照组28 d病死率(14%)高于治疗组(4%),但无显著性差异。结论血必净注射液能改善急性冠脉综合征预后,其机制可能为通过调控炎症反应实现。     

中西医结合治疗妊娠期肝内胆汁淤积症初探

目的 评估复方丹参注射液联合熊去氧胆酸治疗妊娠期肝内胆汁淤积症的临床疗效及对新生儿预后的影响。     

参附注射液对单侧输尿管梗阻大鼠肾脏肝细胞生长因子表达的影响

目的：探讨单侧输尿管梗阻后大鼠肾间质纤维化发生过程中肝细胞生长因子（HGF）的表达及中药参附注射液对其的影响。方法：采用单侧输尿管结扎（UUO）制造梗阻性肾病模型，将56只大鼠随机分为对照组（假手术组）、手术组（UUO组）和治疗组（UUO＋参附），术后7d、14d观察肾组织病理改变，应用免疫组织化学方法检测肾组织中HGF的表达。结果：与对照组相比，手术组肾间质出现了明显的纤维化，HGF的表达在术后第7天明显增加，第14天较第7天减弱，与手术组相比，治疗组肾间质纤维化明显减轻，而且HGF的表达在术后第7天明显上调，第14天较第7天上调更明显，有统计学差异（P〈0．05）。结论：参附注射液可以上调肾组织HGF的表达，减轻肾小管一间质纤维化，发挥肾保护作用。     

多层螺旋CT双通路注射法行肝门静脉系统成像的研究

目的:确定多层螺旋CT肝门静脉系统检查的合理延迟时间及双通路注射对比剂法的可行性。方法:分为2个步骤研究:①随机选择无腹部及心血管疾患的患者53例,以3 ml/s速率注射造影剂20 ml,行同层动态扫描,计算腹主动脉、肝门静脉、下腔静脉、肝实质的对比剂时间密度曲线,及它们的相关性。②47例需门静脉检查的患者,行MDCT肝区移床式、动态扫描,在右肘部静脉及下肢静脉同时注入对比剂,对比剂总量1.5~2 ml/kg。扫描时使用对比剂自动示踪软件,设动脉血管阈值为120 HU启动扫描,动脉期扫描完成后延时20.1±5.54 s行门静脉扫描,分别评价肝门静脉、肝静脉、下腔静脉的显示率及程度。结果:①20 ml对比剂注射同层动态扫描肝门层面腹主动脉达峰时间为18.5±4.81 s,肝门静脉达峰时间是38.61±6.59 s,下腔静脉达峰时间是55.44±12.16 s,肝实质的达峰时间是56±5.7 s。②肝门静脉显示率达100%,肝门静脉主干等显示程度平均评分2.50~2.93;相关小分支静脉显示率为87%~98%,显示平均评分2.25~2.63。结论:MDCT右肘部静脉及下肢静脉同时注入对比剂,在动脉期扫描完成后,延时20.1±5.54 s行肝门静脉检查,肝门静脉系统成像效果良好。