Zn~(2+)—SCN~-—罗丹明B荧光熄灭法测定头发及指甲中微量锌

本文研究了不经萃取分离,在阿拉伯树胶存在下,硫氰酸锌—罗丹明B离子缔合物水相荧光熄灭法测定微量锌的实验方法。试验了该法的最佳实验条件和共存离子的影响,线性范围0.05～0.5μg/25ml,CV≤5.2％,回收范围为92～102％,与原子吸收法比较,无显著差异,可用于头发及指甲中微量锌的测定。     

常染色性显性遗传多囊型肾病38例临床分析

常染色体显性遗传多囊型肾病 (ADPKD)是最常见的多囊型肾病 ,起病隐匿 ,早期诊断较为困难。随着 B超及 CT的广泛应用 ,ADPKD已成为一种较常见的肾脏疾病 ,现对我院 1 992～ 1 997年 5年间收治的且资料完整的 3 8例 ADPKD临床资料作回顾性分析如下。1　临床资料1 .1　一般资料 :本组男性 2 2例 ,女性 1 6例。年龄2 4～ 67岁 ,平均年龄 41岁 ,<3 4岁 6例 ,3 5～ 5 0岁2 1例 ,>5 1岁 1 1例。临床表现 :主要表现为肉眼及镜下血尿 ,贫血 ,腹和 /或腰部疼痛 ,腹和 /或腰部触及包块 ,高血压 ,尿检异常 ,肾功能损害。其中腰痛或腹痛 1 3例 (…     

淋巴细胞亚群在成人麻疹患者中的变化及其临床意义

随着麻疹疫苗的广泛应用，麻疹发病的年龄有后移现象，成人麻疹的发病率明显增加。麻疹的发病机制除了与麻疹病毒侵入细胞直接引起细胞病变外，全身性迟发型超敏性细胞免疫反应在麻疹的发病机制中起了非常重要的作用。在成人麻疹的发病过程中，检测其细胞免疫功能的变化，尚少见报道。为了解成人麻疹细胞免疫功能状况，探究其发病机制，我们对2006年1～5月无锡地区住院的成人麻疹患者外周血T细胞亚群（CD3、CD4、CD8）及自然杀伤细胞（NK细胞）、细胞毒性T细胞（CTL细胞）进行了检测，并对它们的相互关系进行了分析。     

补充微量营养素对儿童健康状况影响的研究

为研究复合微量营养素补充剂对儿童营养状况的影响，将220名8-12岁小学生随机分为2组。一组补充多种微量营养素，另一组服安慰剂，实验采用双盲设计，观察期为6个月。试验前后分别测量身高、体重、生化及工作能力等指标。用t检验和卡方检验，统计两组各项指标的差异。结果显示，补充组儿童的负荷尿中维生素B2、维生素C的排出量，晨尿羟脯氨酸含量以及羟脯氨酸与肌酐比值都显著高于对照组；补充组儿童的血清25-OH-B3水平，尺骨中点处的骨矿物质含量和骨密度也显著高于对照组；补充组儿童的阅读速度、学习能力及数学考试成绩均显著优于对照组。结论复合微量营养素补充剂对改善儿童营养状况和学习能力有明显促进作用。     

布比卡因配伍地塞米松、维生素B6、维生素B12用于剖宫产术后硬膜外镇痛观察

目的观察布比卡因配伍地塞米松、维生素B6、维生素B12用于剖宫产术后硬膜外镇痛的效果.方法将50例剖宫产术后产妇随机分为两组,每组25例,于硬膜外分别注入0.75%布比卡因2ml加生理盐水3ml(A组)和0.75%布比卡因2ml、地塞米松5mg和维生素B650mg、维生素B120.5mg(B组),拔除硬膜外导管,送回病房.结果两组镇痛效果满意,差异无显著性,P＞0.05,B组切口痛觉恢复时间为11.21±2.68h,较A组4.6±1.51h显著延长,P<0.01.结论布比卡因配伍地塞米松、维生素B6、维生素B12用于剖宫产术后硬膜外镇痛与单纯布比卡因相比具有镇痛时间延长的特点,在临床上有应用价值.     

B超诊断始基角子宫(rudimentary horn)1例

1　病例介绍　　患者 ,女 ,2 9岁 ,平素月经不规律 ,婚后 8ａ不孕 ,于某医院检查 ,发现盆腔一实质性肿物 ,无任何不适 ,未经特殊治疗 ,为明确诊断来我院就诊。专科检查 :外阴发育正常 ,阴道通畅 ,白带正常 ,宫颈光滑 ,子宫大小正常 ,子宫位置偏左侧 ,后倾位 ,右侧附件触及一鸡卵大小实质性肿物 ,活动良 ,边界清 ,左附件区未触及异常。超声检查 :子宫大小正常 ,明显向左侧偏移 ,其长轴与中线呈 4 5° ,回声与正常子宫一致 ,其左侧可见一个约 4 .0ｃｍ× 3.0ｃｍ的偏低回声团 ,内部可见数个小囊状回声 (考虑为卵巢 ) ;于上述子宫的对侧可见一…     

易被忽视的小肠肿瘤

张先生今年46岁，半年前开始感到下腹部有压迫感，且逐渐尿量减少、频频想要上厕所。虽先后做过膀胱镜、大肠镜、胃镜等各种检查，却始终找不出原因。后来到医院透过电脑断层，B超检查提示为小肠肿瘤。[编者按]     

Changes in T .lymphocyte subsets after severe traumatic brain inJury

BACKGROUND： Besides local changes of cranial parenchymal cells, hemorrhage, etc., severe traumatic brain injuries also cause the changes of total body fluid and various functions, and the changes of lymphocytes and T lymphocyte subsets should be paid more attention to. OBJECTIVE： To reveal the changing laws of T lymphocyte subsets after severe traumatic brain injury, and compare with mild to moderate brain injury. DESIGN： A comparative observation. SETTINGS： Department of Neurosurgery, Longgang District Buji People＇s Hospital of Shenzhen City; Central Laboratory of Shenzhen Hospital of Prevention and Cure for Chronic Disease. PARTICIPANTS： All the subjects were selected from the Department of Neurosurgery, Longgang District Buji People＇s Hospital of Shenzhen City from August 2002 to August 2005. Thirty patients with severe brain injury, whose Glasgow coma score （GCS） was ≤ 8 points, were taken as the experimental group, including 21 males and 9 females, aging 16 - 62 years. Meanwhile, 30 patients with mild traumatic brain injury were taken as the control group （GCS ranged 14- 15 points）, including 18 males and 12 females, aging 15 -58 years. All the subjects were in admission at 6 hours after injury, without disease of major organs before injury Informed consents were obtained from all the patients or their relatives. METHODS： （1） The T lymphocytes and the subsets in peripheral blood were detected with immunofluorescent tricolor flow cytometry at l, 3, 7 and 14 days after injury in both groups. （2） The conditions of pulmonary infections were observed at 4 days after injury. The differences of measurement data were compared with the t test. MAIN OUTCOME MEASURES： Changes of T lymphocytes subsets at 1 - 14 days after severe and mild or moderate traumatic injury. RESULTS： Finally, 28 and 25 patients with mild to moderate traumatic brain injury, whereas 25 and 21 patients with severe traumatic brain injury were analyzed at 7 and 14 days respectively, and the missed ones died due to the development of disease. （1） Changes of T lymphocyte subsets： At 1 and 3 days after injury, CD3, CD4, CD8, CD4/CD8 began to decrease, whereas CD8 increased in the experimental group, which were very significantly different from those in the control group （t =2.77 - 3.26, P 〈 0.01）, and began to recover at 7 days, which were significantly different from those in the control group （t = 2.06 - 2.24, P 〈 0.05）, and generally recovered to the normal levels at 14 days （P 〉 0.05）. （2） Conditions of pulmonary infections： At 4 days after injury, the rate of pulmonary infection was significantly different between the experimental group and control group [73% （22/30）, 0, x2=37.29, P 〈 0.01]. CONCLUSION： Patients with severe traumatic brain injury suffer from damages of cellular immune function at early period （within 7 days）, and they are easily to be accompanied by pulmonary infections.