假性甲状旁腺功能减退症1例

患儿,男,5个月,因呼吸不畅5d,门诊以先天性喉喘鸣收入院。5d前出现呼吸不畅,咽喉部有痰鸣,故入院。查体:圆脸、下颏短,前囟2.5cm×2.5cm,平坦,枕秃( ),乒乓球感( ),咽稍红,双肺呼吸音可闻及喉鸣音,未闻及干湿啰性音,心脏、腹部及神经系统未见异常。血钙1.75mmol/L,血磷1.81mmol     

病毒感染与急性弛缓性瘫痪

急性弛缓性瘫痪(又称急性弛缓性麻痹,acute flaccidparalysis AFP)不是单一的疾病,是以急性起病、肌张力减弱、肌力下降和腱反射减弱或消失为主要特征的一组综合征。从传染病的监测与控制工作的角度认识,其监测病例的意义尚包括所有15岁以下出现AFP症状的病例,任何年龄临床诊断为脊髓灰质炎(脊灰)的病例均作为AFP病例。中国1994年报告最后1例本土脊灰野病毒病例。2000-10中国所在世界卫生组织(WHO)西太平洋区宣布我国为无脊灰地区,标志我国进入无脊灰状态。随着全球消灭脊灰的进展,今后仍需重视AFP的诊断与鉴别诊断。AFP可见于不同…     

成牙本质细胞中上游刺激因子1对骨桥素表达调控的研究

目的检测成牙本质细胞中上游刺激因子1（upstream stimulatory factor 1，USF1）对骨桥素表达的影响。方法培养成牙本质细胞MDPC-23，稳定转染PCMV-USF1和酸性-USF（A-USF）质粒，提取总RNA，半定量反转录聚合酶链反应检测骨桥素的表达水平，并对结果进行统计学分析。结果筛选出稳定转染USF1和A-USF的抗性克隆，USF1、A-USF转染组和对照组骨桥素相对灰度比值分别为：60．33％±4．51％、229．33％±7．09％、110．00％±15．62％，转染组与对照组差异有统计学意义（P〈0．01）。结论USF1可调控成牙本质细胞骨桥素mRNA转录，该作用被A-USF部分阻断。     

NF1 mutations in neurofibromatosis 1 patients with plexiform neurofibromas

Neurofibromatosis 1 (NF1) is an autosomal dominant disorder caused by genetic alterations of the NF1 gene on 17q11.2. About 30% of NF1 patients develop plexiform neurofibromas (PNFs), which often cause severe clinical deficits. To determine whether there is a certain genotype underlying PNFs or subtypes of PNFs, we screened 42 NF1 patients from 41 families with PNFs for mutations in the NF1 gene. In 33 out of the 41 (80%) unrelated patients NF1 mutations were found, 24 are novel while the other 9 have been described in previous studies. The 33 mutations included 23 nonsense and frameshift, six splice and four missense mutations. The tumors in these patients had various sizes and features/growth characteristics. No correlation was found between the type or location of the NF1 mutations and size, location or feature of the PNFs, suggesting that many types of NF1 mutations can lead to development of PNFs.     

肌萎灵注射液对大鼠原代培养运动神经元生长的影响

为了观察中药制剂肌萎灵注射液对大鼠原代培养脊髓运动神经元生长的影响,本研究采用MTT方法观察神经元活力,并通过免疫组织化学技术进行NF 200染色后图像分析测定突起长度。结果表明:浓度为0. 5% ~5%的肌萎灵注射液能增加培养神经元活力,浓度为0. 5% ~1%的肌萎灵能促进神经元突起生长。本研究结果提示:肌萎灵注射液对培养的大鼠脊髓运动神经元生长有促进作用。     

抗人喉癌/抗VEGF双功能抗体制备及应用研究

目的：研制抗人喉癌／抗血管内皮因子（VEGF）双功能克隆抗体，用于喉癌抗血管生成治疗。方法：采用二次杂交瘤技术制备抗人喉癌／抗VEGF双功能抗体。经酶联免疫吸附试验法和SP法检测喉癌及癌前病患者血清及癌组织中VEGF的含量表达。结果：获得6株分泌抗人喉癌／抗VEGF双功能抗体的杂交瘤，经免疫组化证实与喉癌细胞特异性结合率为93％，而与血管内皮细胞结合率为89％。血清中VEGF含量表达，喉癌组与癌前病组及正常对照组相比差异均显著。IgG亚型鉴定为IgG2aBSAb抗体效价为1：25 600倍（ELISA法）。结论：二次杂交瘤法制备的双功能抗体具有均匀性、可控性、效价高、稳定性好，可用于喉癌抗血管生成治疗，动态检测可作为判断喉癌预后的客观指标。     

血液灌流对硫线磷和硫酸阿托品的吸附作用

Objective To study on adsorption effect of cadusafos and atropine sulfate by hemoperfusion.Method Hemoperfusions were performed for sheep blood samples with cadusafos and atropineby through imitated extracorporeal closed circulating perfusion apparatus.Residual cadusafos was determined by gas chromatography and residual atropine was determined by high performance liquid chromatography.Result Dose of adsorption agent was 0.5,1.0 and 1.5 g,respectively.Two hours after hemoperfusion with membrane coated activated charcoal,clearance rate of cadusafos in 3 groups all exceeded 90%.and clearance rate of atropine sulfate was 61.9%,84.9%,88.9%,respectively.One and a half hours after hemoperfusion with HA230 absorption resin,clearance rate of eadusafos in 3 groups all exceeded 90%,and clearance rate of atropine sulfate was 88.0%,97.2%,98.4%,respectively.Three hours after hemoperfusion with membrane coated activated charcoal,The concentration ratio of cadusafos and atropine sulfate in blood promoted to 10.1 times,and the ratio was 6.7 times after hemoperfusion with HA230 absorption resin.Conclusion It suggested that cadusafos were mostly removed from blood after 1.5～2.0hours hemoperfusion with membrane activated charcoal or HA230 absorption resin.The concentration ratio of cadusafos and atropine sulfate in blood will increased after hemoperfusion.     

180例根管治疗术失败原因分析

根管治疗术是治疗牙髓病、根尖周病，保留患牙的最重要的治疗方法。临床上由于医务人员对牙体解剖形态以及根管治疗术的常规操作掌握不够熟练，操作失误常常导致患牙治疗失败。本文总结了我院自2002年5月至今接诊的156例病例，对180例根管治疗失败病例进行分析。现将结果报告如下。     

654—2对家兔红细胞膜Na^＋—K^＋—ATPase活性及血浆LPO含量的影响

日本大耳兔9只,其中6～8月龄5只,2～2.5年龄4只。均喂以2％654-2溶液1ml/天(即20mg)共43天。结果不分年龄统计,LPO含最下降0.827±1.048 nmol/ml(P<0.05)。Na~+-K~+-ATPase活性增加0.057±0.074μmol Pi/mg pro/hr(P<0.05)。认为654-2可能有抗衰老作用,并与普鲁卡因比较,讨论了其降低LPO的可能途径。     

Impact of a patient education program on adherence to HIV medication: a randomized clinical trial

Patients' knowledge of their HIV condition and its treatment, which has been recognized as a factor that influences adherence to antiretroviral therapy, can be improved through educational programs. This prospective, randomized, controlled trial compared an experimental group that participated in an educational program and a control group with standard care. The study evaluated the impact of an educational intervention on adherence to antiretroviral therapy, patients' knowledge, quality of life, and therapeutic response in patients treated with highly active antiretroviral therapy. Three hundred twenty-six patients were analyzed at inclusion. A higher level of adherence was associated with patients who were older, had higher incomes, and did not smoke. CD4 cell count and plasma viral load were correlated with adherence at entry. The educational intervention had an impact on adherence and knowledge in the experimental group at 6 months, which was maintained at 12 and 18 months. A delayed increase in adherence was observed in the control group at 12 months. No significant impact on quality of life was observed over time. The patients' health status improved in 56% of the experimental group subjects and 50% of the control subjects. However, no significant impact was shown on CD4 cell count and plasma viral load. This study shows that an educational intervention improves adherence to antiretroviral regimens and health status and suggests that it should be initiated early in therapy.