Microvascular corrosion casting of normal tissue, transitional mucosa and adenocarcinoma in the human colon.

The microcirculatory architecture of normal tissue, transitional mucosa and adenocarcinoma of the human colon was investigated with microvascular corrosion casting (MVCC) combined with scanning electron microscopy (SEM). The study showed that the capillaries within the normal mucosa were arranged in a regular hexagonal pattern around the mucosal glands and that the microvessels of transitional mucosa mostly had lost the typical hexagonal pattern and become slightly wider in diameter. The microvessels in the tumor periphery were increased in number and disorganized, and presented large variation in morphology with claw-like formations, widened sinuses, diverticula and appendixoid patterns. Microvessels were lacking in the central areas of tumors. These morphological alterations may serve as additional indicators of tumor development.     

中药黄精中的新生物碱

中药黄精中的新生物碱孙隆儒１）王素贤李铣（沈阳药科大学天然药物研究室，沈阳１１００１５）黄精为百合科黄精属植物黄精（ＰｏｌｙｇｏｎａｔｕｍｓｉｂｉｒｉｃｕｍＲｅｄｏｕｔｅ）的根茎，具有补气养阴、ＦｉｇＳｔｒｕｃｔｕｒｅｏｆｔｈｅｃｏｍｐｏｕｎｄ健脾、...     

免疫反应在实验性游离型腰椎间盘突出自然吸收中的意义

目的：通过检测CD3和IgG在实验性游离型腰椎间盘突出自然吸收中的表达，探讨腰椎间盘突出后能否自然吸收及其可能的吸收机制。方法：将25只成年狗平均分成5组，从L2/3切取髓核组织，置于L5处的硬脊膜外，于术后2，4，6，8，12周，取动物标本以及正常部位的髓核组织，用CD3抗体和抗IgG进行免疫组化检测。结果：约30%的标本局部为脂肪组织，54%的标本局部硬脊膜与骨粘连，16%的标本既无粘连也无脂肪，免疫组化测定显示，随着时间的推移，CD3^ 细胞的浸润程度呈递减趋势，而IgG沉积的分布程度呈递增趋势，正常髓核无CD3^ 细胞浸润，IgG沉积分布极少。结论：在椎管内，狗游离的髓核组织8-12周后可部分或全部自然吸收，其吸收机制是机体自身免疫反应的结果。     

慢性非细菌性前列腺炎/慢性盆腔疼痛综合征患者前列腺液中炎症因子差异表达的临床意义

Objective To investigate the role of inflammatory cytokines in the pathogenesis of chronic non-bacterial prostatitis/chronic pelvic pain syndrome (CAP/CPPS) patients. Methods The 38 cases with CAP/CPPS patients (18 cases of CAP and 20 cases of CPPS) and 20 cases of healthy controls were selected. The differential expressions of 40 kinds of inflammatory cytokines were detec-ted by antibody arrays in prostate fluid. Results The inflammatory cytokines which increased more than 1.5 times expression have been found. There were seven kinds in CAP including monocyte che-moattractant protein (MCP)-1, solution tumor necrosis factor receptor Ⅱ(s TNF R Ⅱ), platelet-de-rived growth faetor-BB (PDGF-BB), interleukin (IL)-β, IL-11、IL-6、MCP-2 and five kinds in CPPS groups including MCP-1、PDGF-BB、MCP-2、s TNF R Ⅱ、It-11 respectively, compared with healthy control group. The cluster analysis results showed that protein expression of Monocyte chemoattrac-tant protein 1 (MCP-1)and platelet-derived growth factor BB (PDGF-BB) were significantly increased in CAP (3.47 and 2.07 times) and CPPS (2.25 and 2.19 times) compared with healthy control group and were the final polymerization of inflammatory cytokines. The protein expression of interleukin 1 β (IL-1 β), MCP-1 and soluble tumor necrosis factor Ⅱ (s TNF R Ⅱ) in CAP group was increased more than 1.85,1.55,1.67 times compared with CPPS group. Conclusions Elevated expression of inflammatory cytokines may play an important role in the course of CAP/CPPS disease. The extent of the inflammatory response of CAP was higher than CPPS. The inflammatory factors of MCP-1 and PDGF-BB could serve as a novel diagnostic marker.     

The Effects of Na~+/Ca~(2+) exchange (NCX) on the Repolarization of Canine Ventricular Myocyte-Potential Arrhythmogenic Effect of NCX during a Mis-matched Repolarization and Relaxation Xiamen Zhongshan Hospital, Xiamen Medical College, Xiamen University

The Effects of Na~+/Ca~(2+) exchange (NCX) on the Repolarization of Canine Ventricular Myocyte-Potential Arrhythmogenic Effect of NCX during a Mis-matched Repolarization and Relaxation Xiamen Zhongshan Hospital, Xiamen Medical College, Xiamen University@巩燕$Visiting scholar of cardiac arrhythmia research institute,university hospital of Oklahoma!U.S.A @王焱 @BELA Szabo$Basic cardiac research laboratory,cardiac arrhythmia research institute,university hospital of Oklahoma!…     

妇科疾病中人乳头瘤病毒感染的分子流行病学调查

目的:探讨各种妇科疾病与人乳头瘤病毒感染的关系,建立不同妇科疾病和不同年龄段妇女人乳头瘤病毒感染的流行病学资料库。方法:应用反向点杂交技术分别对疾病组1 512例病人标本和正常组500例标本进行HPV检测,所得数据用SPSS 13.0软件包进行统计分析。结果:正常组500例标本中,阳性标本101例,感染率为20.2%,疾病组1 512例标本中,阳性标本523例,感染率为34.6%,其中双重感染82例,占阳性标本的15.7%,多重感染34例,占阳性标本的6.5%,而高危感染340例,感染率为22.5%,占阳性标本的65.0%,其中单纯HPV16亚型感染155例,占所有阳性标本的29.6%;不同年龄段、不同性生活史、不同妇科疾病以及不同首次性生活年龄的HPV感染检出率都有显著性差异。结论:正常组和疾病组的HPV感染率有显著性差异(2χ=36.37,P<0.01)。在HPV感染的普查中可以有重点的选择高危人群,这样更加有针对性,从而大大降低普查成本。     

冯梦龙《三言》医药情节撷析

我国古典精品小说《三言》,是明代冯梦龙编纂的《喻世明言》、《警世通言》、《醒世恒言》的总称。其内容揭露达官贵人的穷奢极欲的腐朽生活,歌颂男女青年纯真的爱情,语言诙谐讽刺,有较高的文学价值。书中还有涉及中医中药的情节,现撷析如下。《警世通言》第17回“钝秀才一朝交泰”有黄胜因嫖妓而患广疮及医治的情节:黄胜“终日穿花街,过柳巷,在院子里婊子家行乐。常言道‘乐极生悲’,嫖出一身广疮……将白金百两送太医,只求速愈。太医用轻粉劫药,数日之内,身体光鲜……不勾半年,疮毒大发,医治不痊,呜呼哀哉死了。”[1]太医用轻粉治广疮(即…     

器械与药物结合——医疗器械发展另辟蹊径

每个以技术为基础的公司都在寻求具有发展价值的创新产品，对于医疗器械公司而言，完成这种创新十分困难，然而．近年来的一个突破引起了广泛关注，这就是复合产品的出现。之所以称其为复合产品．是因为它是由两种不同类型的受管制产品构成的．通常是药物与器械组合或生物制品与器械组合。     

显微神经外科技术及翼点入路在鞍区肿瘤手术的应用

目的：总结98例鞍区肿瘤患者经翼点入路显微手术治疗及翼点入路应用体会。方法：按照翼点入路各项操作步骤行鞍区肿瘤切除98例，介绍了操作方法并讨论显微神经外科技术在鞍区肿瘤手术中的应用，及不同部位肿瘤作相应手术操作调整的方法。结果：鞍区肿瘤应用翼点入路进行显微手术操作可良好显露鞍区及肿瘤各显微解剖结构以及手术操作平台，使其肿瘤全切率及患者预后得到明显提高。结论：显微神经外科技术及翼点入路手术操作的掌握和熟练程度的提高是显微神经外科技术的关键及获得良好手术效果的基础。     

52例肺癌患者放疗前肺功能和放疗疗效关系分析

为了探讨放疗前肺功能与放疗疗效的关系，作者于１９８７年１月至１９９０年１２月对５２例无急、慢性呼吸衰竭的肺癌患者在放疗前做了肺功能检测和血气分析，结果表明，放疗前肺功能不能反映肿瘤乏氧程度，也不能作为肿瘤对放疗敏感性的指标，只有直接测量肿瘤原发灶内的乏氧程度才能了解肿瘤对放疗的敏感性，预测放疗的疗效。