脑血管造影和介入治疗过程中脑动脉痉挛的发生和治疗

目的探索脑血管造影和介入治疗过程中脑血管痉挛(CVS)的发生、表现和治疗效果。方法400例患者经股动脉穿刺对双侧颈内动脉、椎动脉等行数字减影血管造影检查共470例次,其中,52例在造影后接受了介入治疗。造影剂为含碘300mg/mL的非离子型造影剂。对造影和治疗过程中出现重度CVS者经导管注入0.3%罂粟碱10mL解痉。结果造影和介入治疗过程中CVS的发生率为17.7%(83/470),其表现为颈动脉管壁不光整,呈波浪状14例(16.9%),颈动脉管腔轻度变窄36例(43.4%),中度25例(30.1%),重度6例(7.2%),颈内动脉不显影2例(2.4%)。轻至中度CVS未作特殊治疗,无不良反应或后遗症发生;8例重度痉挛者经导管注入罂粟碱后6例明显缓解,1例遗留后遗症,1例病死。结论脑血管造影和介入治疗过程中CVS的发生率不容忽视,造影剂的高渗刺激、导管导丝机械性刺激和血管内压力改变是CVS的高危因素,动脉内注入罂粟碱有良好的解痉作用。     

Preparation and identification of monoclonal antibodies against Penicillium marneffei]

OBJECTIVE: To prepare and identify monoclonal antibodies (mAbs) against Penicillium marneffei. METHODS: Recombinant mannoprotein1 (MP1) of Penicillium marneffei was used to immunize BALB/c mice, and anti-MP1 mAbs were obtained by means of hybridoma. Screening and identification of the mAbs were subsequently performed with indirect enzyme-linked immunosorbent assay and Western blotting, respectively. RESULTS: Four hybridomas producing antibodies against Penicillium marneffei were obtained, and the IgG isotypes of the 4 mAbs were identified as IgG1 with affinity constants (K) of 8.2x10(-9), 4.7x10(-9), 6.5x10(-9) and 2.7x10(-9), respectively. Western blotting demonstrated specific recognition of Aspergillus fumigatus MP1 by the obtained mAbs. CONCLUSION: The 4 hybridomas producing anti-MP1 mAbs with high specificity and affinity can be of significant value in the diagnosis of Penicilliosis marneffei infections.     

对称性颅脑损伤的临床诊断与治疗(附123例报告)

目的提高治疗对称性颅脑损伤临床疗效。方法总结123例对称性颅脑损伤患者的临床资料,对其临床特点和治疗情况进行回顾性分析。结果预后良好64例(52.0%),中残25例(20.3%),重残8例(6.5%),植物生存4例(3.3%),死亡22例(17.9%)。结论对称性颅脑损伤是一种较为危重的特殊损伤类型,重视其临床特点,严密观察病情变化,正确把握治疗适应证,方可提高疗效。     

人甲胎蛋白时间分辨免疫荧光分析试剂盒的研制

目的研制人甲胎蛋白(hAFP)时间分辨免疫荧光分析(TRFIA)试剂盒.方法采用双抗体夹心法建立AFP TRFIA 试剂盒,对试剂盒的各项指标进行评价.结果试剂盒的可测范围为l～1 000 U/ml,灵敏度为0.17 U/ml,精密度良好,批内和批间的精密度分别为3.3%～5.9%,3.7%～6.5%.与CEA、CA12-5、CA19-9、CA15-3、白蛋白无交叉反应.稳定性试验表明试剂可以在4℃稳定1年,37℃稳定7 d.426份正常血清标本测试该试剂盒的正常参考值范围是0～12 U/ml.用本试剂盒与国外同类试剂盒同时检测60份血清标本,其相关系数为0.995.结论试剂盒各项指标(灵敏度、精密度、特异性、稳定性、准确度)均达到临床检测要求,可替代国外同类产品试剂盒.     

IMMUNOLOGICAL DIAGNOSIS OF LIGHT CHAIN DISEASE ANALYSIS OF 11 CASES FOUND IN FUJIAN PROVINCE

The present paper reports 11 cases of light chain disease (LCD) sequently found in several citles over Fujian province, Immunological classification of this group of LCD ww as follows: six of me cases belonged to type λ, four of them were type κ, and another one was a double LCD. We found that LCD was common in Fujlan only next to multiple myeloma (MM) of IgG class and accounted for 20% of the total 55 MM cases found in recent yean.It to well known that In matt patients of LCD M protein or Bence Jones proteinemia (BJPemia) to not detectable by conventional electro-phoresis. Our studies show that by making serum protein along with urinary BJP electrophoresis on the same one gel plate the sltuation can be greatly Improved It not only favour* the recognition of smail and faint band or bands of free light chain in serum, but also provides a repid and sensitive way, i. e. , immunofixation, to directly detect urinary light chain on the gel plate Immediately after electrophresis has been run.     

肝内HBcAg与血清学指标的关系及慢性乙型肝炎发病机理的探讨

We detected the presence and distribution of HBcAg in the liver by immunohistochemistry (ABC method) and the presence of HBV-DNA in serum (spot hybridization) and anti-HBe in serum (ELISA) from 59 cases of hepatitis B hospitalized in our hospital, including 47 cases of CAH, 5 cases of CPH, and 7 cases of subacute fulminant hepatitis. 1. HBcAg in the liver was detected in 25 out of 47 cases (53%) of CAH, in 2 out of 5 cases of CPH and in 4 out of 7 cases of subacute fulminant hepatitis. The total percentage was 53% (31/59). 2. There was no positive correlation between HBV replication activity and liver disease activity (P greater than 0.05). Our results did not support the hypothesis that suggests a direct cytopathic effect of HBV. Oppositely, the fact was that the presence, the amount and the patterns of HBcAg in the liver, and the presence of HBV-DNA in serum were predominant in mild CAH compared with those in severe CAH, predominant in CAH without cirrhosis compared with those in CAH with cirrhosis. There was a tendency of inverse correlation between HBV replication activity and liver disease activity. The results above were in line with the concept that HBcAg expressed on the surface of infected hepatocytes may be relevant target for T lymphocyte cytotoxicity. The results have suggested that an immune response to HBV is present, leading to the destruction of most infected cells. 3. There was a positive correlation between HBV-DNA in serum and HBcAg in the liver (P less than 0.005), indicating that HBV-DNA in serum can represent HBV replication.(ABSTRACT TRUNCATED AT 250 WORDS)     

面神经损伤诱导主要组织相容性复合体抗原表达

探讨外周面神经损伤诱导面神经核小胶细胞表达主要组织相容性复合体抗原及其动态变化。面神经损伤后采用免疫组织化学技术，以单克隆抗体ＯＸ１８检测ＭＨＣⅠ类抗原，单克降抗体ＯＸ６检测ＭＨＣⅡ类抗，原观察ＭＨＣ抗原阳性细胞的形状、分布及数量变化。     

光量子疗法中圆面紫外灯辐照度的定量研究

本文根据光辐射的基本概念，应用数学物理方法，导出了血液辐射治疗仪中带反射罩的紫外线灯的辐照度的计算公式，用ＸＴ－Ａ型紫外光功率计，对ＸＬ－２００型血液辐射治疗仪进行实测，经过计算分析，定出了公式中的待定参数，并应用公式对各实测点进行计算对比，计算值与实测值符合得非常好，发现紫外灯辐射度并简单的指标衰减，为近距离辐照剂量的估算提供了一个有价值的公式，从而将光量子疗法中关于辐照剂量问题的研究定量化。