强直性脊柱炎股骨近段形态学改变对全髋关节置换术假体选择的意义

目的分析强直性脊柱炎股骨近段的形态学改变,及其改变对全髋关节置换术假体选择的意义。方法1999年1月~2004年6月,将13例(16髋)强直性脊柱炎患者设为选择组,患者均已出现关节强直,需行全髋关节置换术。另16例(19髋)为对照组,为非强直性脊柱炎患者而拟行全髋关节置换术。两组患者均摄髋关节正侧位X线片,测量Singh指数、髓腔张开指数、皮质形态指数及皮质骨指数,并进行统计学分析。结果选择组Singh指数、髓腔张开指数及皮质形态指数分别为3.81±0.54、2.63±0.41及2.02±0.38,对照组分别为4.63±0.62、3.03±0.27及2.76±0.28,两组比较差异均有统计学意义(P<0.05)。选择组皮质骨指数为1.69±0.69,对照组为2.12±0.24,两组比较差异无统计学意义(P>0.05)。选择组患者髓腔呈烟囱型10例13髋,普通型3例3髋;对照组烟囱型3例3髋,普通型13例16髋。结论强直性脊柱炎的全髋关节置换术应采用骨水泥型人工关节假体,并根据患者髓腔形态使用定制型骨水泥假体,以达到更好的近段固定效果。对于有严重骨质疏松者应按关节翻修术处理。     

胃癌10和11组淋巴结转移及其清扫

目的：研究胃癌脾门淋巴结(No．10)和脾动脉周围淋巴结(No．11)转移规律，进一步探讨No．10和11清扫的必要性和方法。方法：1991年-2000年132例行全胃切除，D2以上淋巴结清扫的胃癌患者，回顾性研究临床病理资料，包括性别、年龄、肿瘤部位、大小、浸润深度、病理类型、其他淋巴结转移等对No．10和11转移的影响，比较全胃切除和全胃联合脏器切除的并发症发生率。结果：胃癌具有较高的No．10或11淋巴结转移率(18．9％)，Logistic回归分析表明，胃癌部位、病理类型、浸润深度和大小弯淋巴结转移五项临床病理指标影响No．10和U转移率。联合脏器切除的并发症发生率(32％)明显高于单纯全胃切除(11．2％)，联合肢体尾切除增加肠下脓肿发生率，而脾切除并不增加全胃切除的危险性。结论：No．10和11在胃癌有较高的转移率和特定的转移规律，预防性和治疗性的清扫实属必要，联合左侧肢体尾加脾切除增加手术危险性，应严格掌握的适应证。而保留胰腺，切除脾血管和脾清扫No．10．和ll淋巴结合理可靠。     

The role of primary total hip replacement for the treatment of the displaced femoral neck fractures

Summary The management of displaced intracapsular fractures of the hip is still controversial because of the high incidence of complications after internal fixation or hemiarthroplasty. To avoid some of these complications we have used primary total hip replacement for independently mobile patients over 65 years of age.Of 49 patients who were interviewed an average of 4.6 years after total hip replacement, 81.6% had excellent or good results as assessed by the Harris Hip Score. At that time two hips had been revised and another converted to Girdlestone due to deep infection. The survival of the prostheses was at 5 years 91.3%.It is concluded that total hip replacement is an established method of management for a selected group of patients with this injury, but further prospective studies are needed in order to define the groups of patients that benefit the most.     

白细胞介素—2新的功能位点及其中枢镇痛作用

白细胞介素－２（ＩＬ－２）不仅是重要的免疫调节因子，而且还具有重要的中枢调节作用。本实验以钾离子透入引起大鼠甩尾反应为指标，发现侧脑室注射ＩＬ—２能显著提高动物痛阈，并能被纳洛酮所阻断，表示ＩＬ－２的中枢镇痛作用可能与阿片受体有关。利用基因定位突变技术获得的无免疫活性ＩＬ－２实查体仍具有中枢镇痛作用，表明ＩＬ—２分子上发挥镇痛和免疫调节作用的功能位点是相互独立的。纳洛酮能够阻断ＩＬ—２的中枢镇痛作用，而不能影响ＩＬ—２增殖ＣＴＬＬ－２细胞的作用，提示ＩＬ－２发挥镇痛和免疫调节作用可能通过不同的受体途径。ＩＬ－２分子中第４５位Ｔｙｒ残基突变为Ｖａｌ后，虽仍保留了免疫活性，但丧失了镇痛功能，表示４５位Ｔｙｒ残基是ＩＬ—２发挥中枢镇痛功能的关键残基之一。我们推测ＩＬ—２的镇痛功能位点可能在ＩＬ—２分子中第４５位Ｔｙｒ残基附近区域。     

应用VIDAS免疫分析系统检测血清抗伯氏包柔螺旋体抗体

莱姆病（Ｌｙｍｅｄｉｓｅａｓｅ）是最近十年来才被认识的一种蜱媒传染流行病，Ｌｙｍｅ病的血清学诊断方法有间接荧光免疫法（ＩＦＡ），酶免疫试验（）ＥＩＡ），免疫印迹法（ＷＢ），梅里埃生物公司（Ｂｉｏｍｅｒｉｅｕｘ）推出ＶＩＤＡＳ免疫诊断系统能够自动定性和半定量地检查Ｌｙｍｅ病的抗伯氏包柔螺旋体抗（抗ＢＢ抗体）。本方法结合了酶和荧光免疫两种方法。硷性磷酸酶标记二抗的底物是４ｍｅｔｈｙｌｕｍｂｅｌｌｉｆｅ     

神经系统疾病患者血小板参数的变化及临床意义

目的 探讨神经系统疾病患者血小板参数的变化。方法 测定神经系统疾病患者血小板数(PLT)和平均血小板体积(MPV)，并与对照组作比较。结果 与对照组比较，脑梗死、椎-基底动脉供血不足患者PLT明显减少，MPV明显增大；脑出血组MPV、PLT均减少。结论 血小板参数的变化对神经系统疾病的诊断、预防和治疗有重要的参考价值。     

Body composition in the elderly: Total body water and anthropometry

Body composition measured with isotopic dilution was compared with anthropometric measurements. The study was carried out in 47 subjects from both sexes, 65 to 92 years old. Total body water (TBW), anthropometric measurements, and dynamometry were assessed. TBW was significatively higher in men than women and decreased with age. Dynamometry and fatfree mass were well correlated (r=0.73 in males and r=0.58 in females) and significantly different between sexes. A negative correlation was found for dynamometry with age, being significant for women. Linear regression equations to predict TBW from anthropometric measurements in males and females were obtained: Males: TBW(I)=19.349+0.617 weight(kg) — 0.931 mid-arm circumference(cm)+0.122 dynamometry (kg) Females: TBW(l)=−5.531+0.343 weight(kg)-0.213 triceps skinfold (mm)+ 0.148 dynamometry(kg) + 3.424 wrist diameter (cm). This simple model is proposed for use in epidemiological and field studies where other more sophisticated methods can not be applied.     

5105例乙肝三系统分布形式调查分析

本文对5105例乙肝三系统检测结果的32种组合形式出现率进行了统计分析,并引 入年龄因素分层分析。分析讨论了19岁以下、20～39岁、40～59岁及60岁以上四组受检者乙肝三系 统检测结果表现与分布的异同,并据此结合文献报道资料提出了预防处理意见。     

深静脉高营养（TPN）预防食管癌切除术后吻合口瘘的临床研究

本研究收集食管癌行食管癌切除胃代食管术病例２６５例，分为未用深静脉高营养组（ＮＴＰＮ）和深静脉高营养组（ＴＰＮ）。分别对各组临床资料进行比较分析，结果显示：ＴＰＮ组葡萄糖供给量（８．３７±２．１２ｇ／ｋｇ／２４小时）显著高于ＮＴＰＮ组（２．７７±０．７１ｇ／ｋｇ／２４小时）（Ｐ＜０．０１），（０．３０±０．１４ｇ／ｋｇ／小时）Ｐ＜０．０５。吻合口瘘发生率ＴＰＮ组（２．１％）则显著低于ＮＴＰＮ组（１５．２％）Ｐ＜０．００１。结果提示ＴＰＮ组可明显降低吻合口瘘发生率。作者于ＴＰＮ促进吻合的愈合，预防吻合口瘘发生的有关机理进行了讨论。     

Interpretation of functional series expansions

While much research has been devoted to the implementation and application of Volterra and Wiener functional series expansions in the identification and characterization of biological systems, little effort has been focused on the fundamental problem of interpreting the resulting kernels. This paper describes the application of the series to the components of a known model of the human pupil control system. As more complicated elements are put together, insight into kernel interpretation is built up incrementally until the total system is identified. Practical limitations and methods are also discussed.