腰椎峡部裂的CT诊断

目的：回顾性分析腰椎峡部裂的ＣＴ表现并讨论其诊断与鉴别诊断，材料与方法，２３例患先行腰椎侧位扫描定位图像，采用与椎间盘平行的角度，自病变脊椎的上一椎体下缘边续发描至于下椎体上缘，层厚４或５ｍｍ必要时在峡部行２ｍｍ，层厚扫描，结果；２３例中，累及双侧２１例，单侧２例，发生在Ｌ５１６例，Ｌ４７例，ＣＴ表现为同一脊椎关节突间的低密度裂隙，出瑞椎弓根下缘平面，走行不规则，裂隙可宽可窄，表面不光滑。     

尿中NAG、γ－GT酶对镉作业工人肾损害的诊断意义

本文调查了我省某矿务局６８名镉作业工人尿中ＮＡＧ、γ－ＧＴ酶的变化。结果发现，按尿蛋白和尿β＿２－ＭＧ水平对肾损害程度分级确定为无肾损害的镉作业工人体内尿中ＮＡＧ、γ－ＧＴ酶活性明显出现异常。提示，尿中ＮＡＧ和γ－ＧＴ酶活性的变化，是反映镉作业工人肾损害的早期灵敏指标。     

急性肾小球肾炎血清Lpo、IgG、IgA、C_3测定意义

急性肾小球肾炎血清Ｌｐｏ、ＩｇＧ、ＩｇＡ、Ｃ_３测定意义杨麦贵，陈淀国（西京医院检验科，７１００３２）汪金材，张竹映（中铁建筑总公司西安医院，７１００３２）氧自由基及其脂质过氧化反应，能使组织发生损伤，引起疾病。本文拟就急性肾小球肾炎（ＡＧＮ）血清过...     

介绍一种凝血酶原活动度测定的稀释曲线

介绍一种凝血酶原活动度测定的稀释曲线方国安，金秀国，刘波，杨文西（舟山市人民医院血液病实验室，浙江舟山３１６００４）凝血酶原活动度测定是临床上常用的检测项目之一，是监测抗凝药物治疗的重要指标。为探讨更精密实用的检查方法，本文参考了ＩＬ公司生产的ＡＣＬ...     

职业性锰暴露工人健康状况调查分析

对１８２名职业性暴露于锰的电焊工人和１５４名无锰及其它重金属暴露史的对照工人进行健康状况调查，发现暴露组神经系统改变发生率为２６．９６，比数比为２．６２，并且锰暴露年数与神经系统改变呈剂量－反应关系。     

共同性斜视术后的回退问题

共同性斜视矫正术后,近期为双眼正位,但时间长后又能出现以下几种变化:①眼位回退到原斜视方向,②眼位向原斜视方向的相反方向移行;③保持双眼正位。如果我们能将引起眼位变化的因素加以分析,以指导我们手术,会提高斜视矫正手术成功率。现我们将我院的48例共同性斜视(共同性外斜30例,共同性内斜18例)矫正术3年后的情况报告如下:对象和方法一、一般资料;本组病例系1987年12月     

不同人群血中抗-HCV与HBsAg携带率的调查

我们于1992年7～10月间对不同人群的3328例血样作了抗-HCV和HBsAg的检测,结果发现农民献血员组抗-HCV阳性率达11.39％(234/2134),战士献血员273名全部阴性,临床病人为5.12％,健康查体者为0.7％,HBV及HCV重叠感染4组皆在0.5％以下,平均为0.18％。鉴于丙肝在我国已有局部流行,且抗-HCV携带率较高、具有传染性的现实,献血员应尽可能在丙肝低发区选择,且应作HBsAg及抗-HCV的筛选,减少输血后肝炎的发生。     

Rosiglitazone down-regulates lipopolysaccharide-induced expression of CD40 and intercellular adhesion molecule 1 in rat peritoneal mesothelial cells through a NF-κB dependent mechanism

Objective To investigate the effect and mechanism by which PPARγ ligand, rosiglitasone, regulates the expression of CD40 and intercellular adhesion molecule 1 (ICAM-1) in the rat peritoneal mesothelial cells (RPMCs) induced by lipopolysaccharide (LPS). Methods RPMCs were harvested from Sprague-Dawley rat peritoneal cavity and maintained under defined in vitro conditions. The cells were randomly divided into groups as follows: medium, LPS (5 mg/L), LPS (5 mg/L)+BAY11-7085(5 μmol/L, NF-κB inhibitor), rosiglitazone (10 μmol/L or 20 μmol/L, peroxisome proliferator-activated receptor γ activator), LPS (5 mg/L)+rosiglitazone (10 μmol/L)+GW9662 (3 μmol/L, peroxisome proliferator-aetivatcd receptor γ antagonist), and LPS (5 mg/L)+vehicle (DMSO 0.2 ml/L). The expressions of CD40 and ICAM-1 RNA in RPMCs were examined by RT-PCR after 3 hour treatment, and the protein expressions of CD40, ICAM-1, p-NF-κB p65 and p-IκBα were examined by Western blot or immunofluorescence after 24 hour treatment. Results Following treatment with LPS, both the expressions of CD40 and ICAM-1 protein in RPMCs were up-regulated significantly (P<0.05), and the phosphoralation of p65 was increased greatly (1.10±0.17 vs 0.55±0.06, P<0.05). BAY11-7085 (5 μmol/L) significantly decreased the protein expression of p-p65 (0.22±0.11 vs 1.10±0.17, P<0.01), CD40 (0.34±0.02 vs 0.50±0.06, P<0.05) and ICAM-1 (0.35±0.16 vs 0.74±0.03, P<0.05). Pretreated with rosiglitazone for 3 h then added with LPS for 1 h, the levels of p-p65, CD40 and ICAM-1 in RPMCs were significantly decreased compared with those of LPS group (0.77±0.08 vs 0.90±0.10, P相似文献