术前IADSA和栓塞术在鼻咽纤维血管瘤治疗中的应用

目的：研究分析术前经动脉数字减影血管造影（ＩＡＤＳＡ）和栓塞术在鼻咽纤维血管瘤治疗中的价值。方法：分析本院２１例鼻咽纤维血管瘤患者的临床分析治疗资料，１主后１年复发，再次手术治疗。２２次手术中，术前行及未行ＩＡＤＳＡ和栓塞术的各１１次。 术前示行和行ＩＡＤＳＡ和栓塞术的要中平均出血量和输血量。结果：术前未行和行ＩＡＤＳＡ和栓塞术的术中出量量和输血量分别为１１３６ｍｌ、８３６ｍｌ、６７７ｍｌ、４００     

瞬目反射正常值及初步临床应用

目的了解健康成人瞬目反射正常值及其临床应用价值。方法采用Ｅｖｏｌｕｔｉｏｎ型神经肌肉记录仪检测，表面电极直接刺激眶上神经，诱发瞬目反射（ｂｌｉｎｋｒｅｆｌｅｘ，ＢＲ）。在同侧眼轮匝肌记录出短潜伏期波（Ｒ１）和双侧眼轮匝肌记录出长潜伏期波（Ｒ２，Ｒ２’）。对２０名（４０侧）健康人和３０例患者（其中包括三叉神经疾病，面神经疾病及听神经瘤）进行瞬目反射测试。结果ＢＲ潜伏期健康成人平均值Ｒ１为１０．１ｍｓ，Ｒ２和Ｒ２’为３０．４ｍｓ和３０．７ｍｓ。患者组患侧ＢＲ各波潜伏期延长，与健侧和健康人相比较，经ｔ检验，Ｐ＜０．０１，差异有极显著性。结论测试结果表明该技术简单、可靠，对三叉神经、面神经疾病和听神经瘤的早期诊断能提供有价值的电生理测试结果。     

Evaluation of the effectiveness of preoperative embolization in surgery for nasopharyngeal angiofibroma

We retrospectively analyzed the clinical data of 21 patients (22 procedures) with histologically proven nasopharyngeal angiofibromas. Eleven patients underwent preoperative intra-arterial digital subtraction angiography (IADSA) and embolization with Gelfoam. Embolization reduced the intraoperative blood loss from an average of 1136 ml in the non-embolized patients to 677 ml in the embolized cases (P < 0.05) and transfusions from an average of 836 ml to 400 ml (P < 0.01). Results again show that preoperative embolization is effective in reducing intraoperative blood loss. Received: 10 May 1997 / Accepted: 21 October 1997     

bcl-2基因调控作用与细胞凋亡在神经母细胞瘤发生发展中的作用

目的：探讨ｂｃｌ－２基因调控作用与细胞凋亡在神经母细胞瘤（ＮＢ）发生发展中的作用。方法：应用ＬＳＡＢ免疫组化及ＴＵＮＥＬ技术检测ＮＢ中ｂｃｌ－２蛋白表达和细胞凋亡。结果：１７例ＮＢ均有ｂｃｌ－２蛋白表达阳性细胞及凋亡细胞，表达指数（ＢＥＩ）９．８％～６１．８％，凋亡指数（ＡＩ）２０‰～１６７‰，二者呈负相关。年龄＜１岁、Ⅰ～Ⅱ及Ⅳ－Ｓ期、ＦＨ型ＮＢ的ＢＥＩ低于年龄≥１岁、Ⅲ～Ⅳ期及ＵＨ型，但差异无显著性意义。ＡＩ在不同分组间差异有显著性意义，且ＡＩ与术后生存时间呈正相关。结论：ｂｃｌ－２基因异常表达可能与神经母细胞或原始神经嵴细胞逃脱凋亡，不能正常成熟或消退，而发展成ＮＢ及ＮＢ的进展有关。ＡＩ高预后好。ＢＥＩ和ＡＩ的检测可为了解ＮＢ的发病机制和判断预后提供实验依据及手段。     

The role of MRI in the illustration of metastatic lymphatic pathways and clinical N-staging of nasopharyngeal carcinoma

Subject: To study the role of MRI in the illustration of metastatic lymphatic pathways and clinical N-staging of nasopharyngeal carcinoma (NPC). Methods: Eighty NPC patients were examined with MRI before radiotherapy from Mar. 1994 to Jun. 1996. MRI were performed using T₁ weighted image (T,WI) and T₂ weighted image (T₂WI) in transverse, and using T₁WI in sagittal and coronal sections. Results: 1. NPC chief metastatic lymphatic pathways are: primary foci → Rouviere’s node (RN), or retrostyloid space nodes (RSN) secondarily → deep cervical nodes; 2. The superior border of neck fields should be moved upward to the level of external acoustic meatus; 3. The authors suggested that in N-staging for NPC, N_o and N₁ be divided into Noa and N₁b, and N₁a and N₁b. Conclusion: MRI is very useful in clinical N-staging of NPC, especially for the reflection of the influance of RN and/or RSN tumefaction on N-staging.     

The role of VCAM-l/VLA-4 in the activation of allogenic T cells by murine macrophages

Vascular cell adhesion molecule 1 (VCAM-1) is a member of immunoglobulin superfamily. The principal ligand for VCAM-1 is integrin α4β/VLA-4 (very late antigen 4). It was reported that VCAM-1 was expressed on macrophages and dendritic cells, but little is known about its function on these professional antigen presenting cells (APC). The present study was performed to investigate the expression of VCAM-1 on macrophages and the role of VCAM-l/VLA-4 in the activation of allogenic T cells by murine macrophages. We analyzed VCAM-1 expression on peritoneal macrophages and macrophage cell line J774A.1 by fluorescence-activated cell sorting (FACS). Using neutralizing antibodies, we further analyzed the role of VCAM-l/VLA-4 interaction in macrophage and allogenic T cell mixed lymphocyte reaction (MLR). We found that VCAM-1 was constitutively expressed on macrophages and its expression level was upregulated by soluble tumor associated antigen (freeze-thaw lysates of FBL-3 leukemia cells) and TNF-a. In MLR assays, we observed that blocking VCAM-l/VLA-4 interaction with anti-VCAM-1 or anti-VLA-4 mAbs caused significant inhibition of the proliferative response and IL-2 production. These results suggest that VCAM-lon macrophages not only facilitates the cell-to-cell contact through adhesive interaction but also plays a role in the costimulation of T cells via its interaction with VLA-4 on the T cells. This work was supported by grants from the National Natural Science Foundation of China.No. (39730420). This is one of papers of the special issue on gene therapy research (Chin J Cancer Res Vol. 9 No. 4 December, 1997).     

乳腺癌肿瘤血管生成的临床病理学意义

肿瘤血管生成（ＴｕｍｏｒＡｎｇｉｏｇｅｎｅｓｉｓ，ＴＡ）是目前肿瘤研究的重要课题，其研究目的在于探讨ＴＡ的预后价值以及预测肿瘤对抗血管生成药物的反应。本文应用第八因子相关抗原多克隆抗体对６５例乳腺浸润性导管癌（以下简称乳腺癌）进行了微血管的定量研究。结果显示：腋下淋巴结阳性病例组织的微血管密度（ＭｉｃｒｏｖｅｓｓｅｌＤｅｎｓｉｔｙ，ＭＶＤ）（１２９．７±４４．９）明显高于腋下淋巴结阴性（ＮｏｄｅＮｅｇａｔｉｖｅＢｒｅａｓｔＣａｎｃｅｒ，ＮＮＢＣ）病例组的ＭＶＤ（７９．６±３３．６），差异呈极显著性（Ｐ＜０．００１）；发生术后复发及远处转移的病例的ＭＶＤ均值高达１４５．３；以上结果提示乳腺癌ＭＶＤ与肿瘤转移、复发均密切相关。我们认为乳腺癌ＭＶＤ可反映其血供状态，ＭＶＤ高的病例微血管丰富，肿瘤组织生长快，癌细胞易于进入微循环而发生转移     

多型别人乳头瘤病毒在膀胱癌中的表达

目的：探讨人乳头瘤病毒与泌尿系肿瘤关系。方法：用ＰＣＲ检测５０例膀胱癌组织中人乳头瘤病毒的感染情况。结果：ＨＰＶ１６、１８型检测阳性率１０％，ＨＰＶ通用型（即６、１１、１６、１８、３１、３３）检测阳性率６０％。其感染与病理分级无关。结论：多型别混合感染是膀胱癌的病因之一     

人骨髓中自然抑制细胞对肿瘤细胞体外增殖的抑制作用

自然抑制(NS)活性是一类尚未完全定性的细胞所具有的对多种免疫反应的非特异抑制作用.NS细胞表面不存在成熟B细胞、T细胞及巨噬细胞的表面标记,为此,我们研究了NS细胞和造血干细胞(HSC)间的关系,结果证明,NS细胞是处于增殖周期中的HSC,并证明小鼠NS细胞具有抑制肿瘤细胞增殖的作用.本实验中,我们研究人骨髓中NS细胞的体外抗肿瘤活性,并确定其作用模式和生物学特性.     

组织蛋白酶D在ⅡB型骨肉瘤中的表达及其临床意义

目的探讨组织蛋白酶Ｄ（ＣＤ）与骨肉瘤患者预后的关系。方法应用免疫组化技术检测３４例骨肉瘤组织标本中的ＣＤ表达水平，并结合患者临床病案记录和随访资料进行分析。结果ＣＤ高表达与低表达之间的肿瘤转移人数和２年生存人数差异显著，且ＣＤ低表达患者的平均生存时间较高表达者为长。经Ｋａｐｌａｎ┐Ｍｅｉｅｒ分析，两组间生存率有显著差异。结论ＣＤ高表达的骨肉瘤易发生转移，预后不良，应加强治疗。