Cat-301 immunoreactivity in the lateral geniculate nucleus and visual cortex of the strabismic amblyopic cat

Purpose: It was investigated whether alterations in neuronal structure and function occasioned by strabismic amblyopia also may be reflected in alterations in the expression on Y type neurons of a Cat-301 antibody sensitive antigen in the lateral geniculate nucleus (LGN) and cortex of our cat model of strabismic amblyopia. Methods/Results: The percentage of positively labelled cells was reduced in LGN laminae that received input from the deviated eye in strabismic amblyopic cats compared with normal cats. In the strabismic cortex, the density of immunopositive neurons was significantly reduced compared with normal, the effect being most pronounced in layer IV Conclusions: Despite previous physiological recordings indicating a decrease in X-cell associated acuity in strabismic amblyopia, the present findings imply that the changes in the early visual experience occasioned by strabismus also produce specific molecular changes in theY neuronal class.     

用混合粘合剂碳糊电极测定丁螺环酮

用混合粘合剂碳糊电极测定丁螺环酮张正奇，曾鸽鸣，刘传桂，黎艳飞（湖南大学化学化工系，长沙４１００８２）碳糊电极无毒，制作方便，表面更新容易，应用电位范围广，在药物分析中已有应用［１～５］。我们在液体石腊中加入添加剂，组成混合粘合剂，可显著改善电极的检...     

新的高强度高选择性阿片μ受体激动剂[11C]-羟甲芬太尼的合成

羟甲芬太尼(I)是一个新的高强度高选择性阿片μ受体激动剂。本文用cis-A-N-[1-(2-羟基-2-苯乙基)-3-甲基-4-哌啶基]-苯胺(II)或cis-N-[1-(苯甲酰甲基)-3-甲基-4-哌啶基]-苯胺(III)作为前体合成了[¹¹C]-羟甲芬太尼,以便用正电子发射断层扫描(PET)来观察μ受体。通过水解cis-A-羟甲芬太尼(I)和cis-N-[1-(苯甲酰甲基)-3-甲基-4-哌啶]-N-苯基丙酰胺(cis-IV)的4-N-丙酰基分别获得II和III。溴乙烷的格氏试剂与回旋加速器产生的[¹¹C]-二氧化碳反应后继而直接加入邻苯二甲酸二酰氯和2,6-二叔丁基吡啶生成同位素标记中间体[¹¹C]-丙酰氯。[¹¹C]-丙酰氯与OH-前体(II)反应后再经HPLC分离纯化直接得[¹¹C]-羟甲芬太尼;[¹¹C]-丙酰氯与酮-前体(III)反应后,再用硼氢化钠甲醇溶液处理,然后进行HPLC分离纯化得[¹¹C]-羟甲芬太尼。两种方法均可获得ll.1～14.8GBq/μmol的特异性放射化学纯[¹¹C]-羟甲芬太尼。总共耗时为40～50min(EOB)。     

体外静脉—静脉转流下原位肝移植围术期酸碱,生化的变化

目的:观察体外静脉转流下原位肝移植围术期酸碱和生化的变化。方法:7例病人行原位肝移植术,在无肝期行体外静脉-静脉转流,监测围术期酸碱和生化指标。结果:(1)与术前相比,pH各期有所下降,但仍维持在正常范围,BE和SBC在转流60分钟及关腹时降低;与转流前期相比。pH以后各期变化不大。术期pH在7.35～7.45范围之内;(2)血糖在各期都升高,血钙降低,体温逐渐降低;(3)血钾在肝血管开放后一过性增高,由3.17mmol/L升至3.53mmol/L。结论;体外静脉转流下原位肝移植术,术中酸碱和生化变化轻微,避免了明显的代谢性酸中毒和高血钾,但体温和血糖变化明显。     

上腹器官簇移植术实验中血流动力学及血生化的变化

目的:观察上腹器官簇移植术实验中血流动力学及血生化变化。方法:杂种猪32只。随机分为供体组和受体组,无肝期行体外静脉转流。测定术中的血流动力学和血生化指标。结果:(1)术中血流动力学在无肝期初期及开放后早期时间内有明显的波动,心输出量、血压、肺动脉压和肺毛细血管楔压下降,心率加快;(2)转流在一定程度上稳定血流动力学;(3)生化变化:开放前行肝冲洗的8例,血钾仅轻度升高;未作冲洗的6例,则血钾明显升高;(4)开放后均有不同程度的代谢性酸中毒。结论:上腹器官簇移植术,机体血流动力学及血生化均有改变,特别是在肝移植阶段明显。其它器官移植期处理也应考虑肝移植后续作用的影响。     

鹿茸多肽的纯化和鉴定(英文)

应用凝胶过虑和离子交换层析等技术,从鹿茸(pilose antler or Cervus nipponTemminck)中分离纯化出一种多肽(peptide of pilose antler,PAP)。经高效液相色谱和N-末端氨基酸分析鉴定为单一多肽,氨基酸组成分析证明,PAP是由68个氨基酸组成,分子是为7200。药理研究证明,PAP对大鼠角叉菜胶性足肿胀具有明显的抑制作用并呈现良好的量—效关系。     

两种方法治疗肛门瘙痒症的疗效观察

目的为比较两种方法治疗肛门瘙痒症的疗效及复发情况。方法将100例肛门瘙痒症患者随机分为对照组和治疗组,每组50例,对照组采用长效麻醉剂封闭,治疗组采用消风散配合针灸治疗。结果治疗2周后,对照组总显效率为48%(24∕50),治疗组总显效率为98%(49∕50),治疗组总显效率明显高于对照组,P<0.05;6个月后随访,对照组复发32例(64%),治疗组复发3例(6%),治疗组复发率明显低于对照组,组间差异有统计学意义,P<0.05。结论消风散配合针灸治疗肛门瘙痒症疗效肯定,且复发率低。在常规封闭疗法无效的情况下,可行消风散配合针灸治疗。     

选择性子宫动脉栓塞治疗子宫肌瘤的临床研究

目的 研究用选择性子宫动脉栓塞治疗子宫肌瘤的临床效果。方法 采用Seldinger方法作选择性子宫动脉栓塞治疗15例子宫肌瘤患者。经股动脉穿刺,将导管选择性进入双侧子宫动脉,经导管注入真丝线段和明胶海绵,阻断肌瘤血供。结果 经血管造影发现,子宫肌瘤血供丰富,均由双侧子宫动脉供血,栓塞双侧子宫动脉后,子宫肌瘤血供可完全阻断,治疗后6个月的随访结果表明：月经量及月经周期恢复正常,疼痛明显改善,肌瘤和子宫体积明显缩小。临床有效率达86．67％。结论 选择性子宫动脉栓塞治疗子宫肌瘤是一种创伤小,临床效果好的新方法。     

急性白血病完全缓解后患乳腺癌1例

1 病例报告女,51岁. 因发热、关节疼痛、齿龈胀痛、左下肺感染20 d,抗生素治疗无效,于2001-11-29入我院血液科治疗. 查体:T 37.5℃,P 120次/min,R 18次/min,BP 110/50 kPa,贫血外观,巩膜无黄染,皮肤黏膜无出血,右颌下可触及一黄豆粒大小淋巴结,触痛(±),胸骨压痛( ),心率120次/min,律齐,无病理性杂音. 双肺未闻及干湿啰音. 腹软,肝脾未触及,四肢运动正常. 既往史:曾于1992年行"乳腺小叶切除术",1999年因子宫肌瘤行"子宫次全切除术". 家族史:其姐姐1982年患乳腺癌,因肺转移已于1983年病故.     

Lenalidomide in combination with dexamethasone: effective regimen in patients with relapsed or refractory multiple myeloma complicated by renal impairment

Over the past decade, treatment options for patients with multiple myeloma (MM) have improved substantially, resulting in better response rates and prolonged overall survival (OS). Nevertheless, MM remains a challenging disease, especially if renal insufficiency (RI) or extensive pre-treatment aggravates the assignment of the optimal treatment schedule. In this retrospective study, we analyzed the outcome of lenalidomide plus dexamethasone in 167 patients with relapsed or refractory MM with focus on RI. The baseline creatinine clearance (CL_Cr) was normal in 94 patients (CL_Cr ≥ 80 ml/min), while RI was observed in 73 patients, including 40 patients with mild RI (50 ≤ CL_Cr < 80 ml/min) and 33 patients with moderate or severe RI (CL_Cr < 50 ml/min). Response rates declined depending on the severity of RI, being 67% among patients with normal kidney function, 60% among patients with mild RI and 49% among patients with moderate or severe RI. Time to progression (TTP) was significantly reduced in patients with severe RI and in case of >2 previous treatment lines. OS was not significantly different between patients with normal and impaired renal function. In contrast, the number of previous treatment lines (2 vs. <2) and the use of novel agents like bortezomib or thalidomide prior to lenalidomide plus dexamethasone therapy had a more adverse effect on OS. In conclusion, lenalidomide plus dexamethasone is an effective regimen for relapsed or refractory patients with MM complicated by RI with manageable toxicity.