QT Dispersion Level and Its Clinical Significance.in Dilated Cardiomyopathy

［1］Richardson CP, Mckenna RM, Bristow CM, et al.Report of the 1995 Word Health Organization/International Society and Federation of Cardiology Task Force on the definition and classification of cardiomyopathies. Circulation, 1996,93: 841 ［2］Barr CS, Naas A, Freeman M, et al. QT dispersion and sudden unexpected death in chronic heart failure. Lancet, 1994,343:327 ［3］Martin AB, Garson A, Perry JC, et al. Prolonged QT interval in hypertropic and dilated cardiomyopathy in children. Am Heart J, 1994,127(1):64 ［4］Pye M, Quinn AC, Cobble SM. QT dispersion: a non-invasive marker of susceptibility to arrhythmia in patients with sustained ventricular arrhythmias?Br Heart J, 1994,71(5):51 ［5］Berger RD, Kasper EK, Baughman KL, et al. Beat to beat QT interval variability: novel evidence for repolarization lability in ischemic and non ischemic dilated cardiomyopathy. Circulation, 1997, 96 (5):1557 ［6］Wolfram G, Ulrike S, Volker M, et al. QT dispersion and arrhythmic events in idiopathic dilated cardiomyopathy. Am J Cardiol, 1997,78: 458 ［7］Fei L, Goldman JH, Prasal K, et al. QT dispersion and RR variations on 12-lead ECGs in patients with congestive heart failure secondary to idiopathic dilated cardiomyopathy. Eur Heart J, 1996,17: 258 ［8］Pan YZ, Guo NS, Xing ZF, et al. The relation between QT dispersion and ventricular arrhythmia of dilated cardiomyopathy. Chin J Inter Medi, 1996,35(11):73 ［9］Galinier M, Vialette JC, Fourcade J, et al. QT interval dispersion as a predictor of arrhythmic events in congestive heart failure. Importance of aetiology. Eur Heart J, 1998,19(7) :1054     

大肠癌新相关基因HSU17714的染色体定位研究

目的确定大肠癌新相关基因ＨＳＵ１７７１４的染色体定位。方法采用强化荧光原位杂交技术（ＦＩＳＨ）,以生物素化酪胺强化荧光原位杂交信号。结果８０．０％（１２８／１６０）的间期细胞和５９．８％（１０４／１７４）的中期分裂相可见到明显集中的ＨＳＵ１７７１４基因的杂交信号,相应荧光Ｒ带分析中,８５．１％（４０／４７）在２２号染色体上１区３带处有杂交信号。结论ＨＳＵ１７７１４基因定位于２２ｑ１３。     

南方红豆杉组织培养研究Ⅰ.愈伤组织诱导和培养条件优化

介绍了南方红豆杉植物愈伤组织诱导和继代培养条件,在ＭＳ－培养基上,附加不同种类和浓度配比的激素,在光照条件下对植物愈伤组织的诱导率和生长量等进行了比较,其中当２,４－Ｄ１．２ ｍｇ／Ｌ＋６－ＢＡ ２． ８ ｍｇ／Ｌ＋ＮＡＡ ３ ｍｇ／Ｌ或 ４ ｍｇ／Ｌ时,愈伤组织诱导率和生长量最高,结果表明,不同激素组合对愈伤组织诱导率、生长量和发生的性状有明显的影响。为南方红豆杉植物细胞悬浮培养建立了基础,为解决红豆杉的资源贫乏提供了新途径。     

广州地区一九九七年孕产妇死亡原因分析

目的：分析广州地区１９９７年２７例孕产妇死亡原因。方法：对广州地区１９９７年孕产妇死亡资料进行回顾性分析并与１９８１～１９８７年资料进行对比。结果：产后出血是直接产科致死原因的首位原因。结论：加强围产保健是降低孕产妇死亡的重要手段。     

RP-HPLC测定犬血浆中卡托普利

目的　采用反相高效液相色谱法测定犬血浆中卡托普利浓度。方法　以对溴苯乙酰基溴为衍生剂 ,血浆样品经衍生反应后 ,用乙酸乙酯 -苯 (1∶1)提取 ,以ODSC18为固定相 ,乙腈∶水∶冰醋酸 (4 5∶5 5∶0 2 )为流动相 ,UV2 5 8nm紫外检测。结果　在 2 5～ 6 0 0 μg·L-1浓度范围线性良好 ,最小检测浓度为 12 5 μg·L-1。其日内差及日间差RSD分别小于 4 95 %和 2 88% ,相对回收率大于 94 8%。结论　方法简便灵敏 ,为卡托普利样品分析及临床药物监测提供了检测方法。     

慢性鼻窦炎鼻息肉围手术前期处理对术中出血影响的观察

OBJECTIVE: To explore the method of reducing bleeding during endoscopic sinus surgery for chronic sinusitis and nasal polyp. METHODS: Bleeding during surgery and the effective rate of two groups patients with chronic sinusitis and nasal polyp were compared (68 cases in group A with preoperative treatment, 30 cases in group B without preoperative treatment). RESULTS: The effective rate between group A(91.2%) and group B (80%) is of significant difference (F = 8.617, P = 0.026); The volume of bleeding during surgery between group A that is (53.2 +/- 41.8) ml and group B that is (97.2 +/- 59.0) ml is of significant difference (F = 27.946, P = 0.002). CONCLUSIONS: Controlling the inflammatory reaction of chronic sinusitis and nasal polyp by preoperative treatment is the most important factor to reduce bleeding while undergoing endoscopic sinus surgery. However, the followings are also important factors to reduce bleeding in endoscopic sinus surgery, such as adequate use of vasoconstrictor in the middle nasal meatus during surgery, the use of deliberate hypotension during surgery, controlling the high risk factors by preoperative treatment and reducing trauma during surgery, etc.     

高效液相色谱法测定右旋噻吗洛尔及其对映体含量

目的 :建立右旋噻吗洛尔含量测定、有关物质检查及对映体纯度检查方法。方法 :采用高效液相色谱法 ,以DiamonsilTM C18柱测定噻吗洛尔含量及有关物质 ;以CyclobondI 2 0 0 0 TM 柱检查右旋噻吗洛尔对映体纯度。结果 :噻吗洛尔与其中间体及降解产物之间分离良好 ;噻吗洛尔在 0～ 5 0 0mg·L- 1浓度范围内符合线性关系 ,日内、日间测定的相对标准偏差均小于 0 .6 % ;右旋噻吗洛尔与其左旋对映体可完全分离 (Rs>2 .4 )。结论 :建立的方法快速简便、准确可靠 ,可以用于右旋噻吗洛尔的质量控制     

内镜鼻窦手术后局部应用Merogel对促进术腔黏膜上皮化的临床效果观察

目的　观察使用美国Xomed公司生产的Merogel(透明质酸 )作为内镜鼻窦手术后的术腔填塞物对促进术腔上皮化的作用。方法　对 16例 (32侧 )经鼻内镜全鼻窦开放术患者进行同体对照观察 ,左侧为Merogel观察组 ,右侧为空白对照组 ,连续内镜随访 12周 ,观察双侧术腔上皮化过程。结果　Merogel侧治愈 93 75 % ,好转 6 2 5 % ,平均上皮化时间 3 4周 ;对照侧治愈 87 5 0 % ,好转12 5 0 % ,平均上皮化时间 8 3周。表明使用Merogel侧术腔上皮化时间比对照组明显缩短。结论　内镜鼻窦手术后局部使用Merogel ,可以促进术腔上皮化过程     

肺癌患者纤支镜取材测定c-erbB-2蛋白的临床意义

目的 探讨肺癌患者经纤支镜取材，检测c—erbB—2蛋白的临床意义。方法 对肺部有占位性病变的患者行纤支镜取材，再用免疫组化S—P法检测c—erbB—2蛋白的表达情况，并比较肺癌组、肺良性病变组c—erbB—2蛋白的表达情况及其与临床病理因素的关系。结果 肺癌组、肺良性病变组c—erbB—2蛋白的阳性表达率分别为35．0％、10．0％，有显著性差异；c—erbB—2蛋白与肺癌组织学类型、分化程度、淋巴结及远处转移有关。结论 术前纤支镜取材测定c—erbB—2蛋白的表达情况有助于肺癌的临床诊断、分期及预后的判定。