围术期维持活体部分移植小肠血供的措施

目的：探讨围术期维持移植小肠血液灌注的方法，方法：男，18岁，短肠综合征患者，全麻下接受其父亲供给末段回肠150cm，行活体部分小肠移植，围主期维持出入量平衡，中度等容血液稀释，选用扩血管药，防止血管痉挛，以及抗凝治疗，结果：术的31d脱离肠外营养，至今已术后34mo，未发生移植小肠明显缺血性改变。结论：采用上述方法匀是维持围术期移植小肠血供的重要措施。     

血小板衍生性生长因子对低氧培养内皮细胞增殖的影响

目的　观察低氧条件下血小板衍生性生长因子 (PDGF)对于培养人脐静脉内皮细胞 (HUVEC)增殖的影响。方法　流式细胞仪分析细胞周期各时相分布 ,氚 -亮氨酸 (3 H -Leu)掺入实验评价蛋白质合成 ,免疫组织化学方法检测增殖细胞核抗原 (PCNA)水平。结果　低氧可显著减少S期及G2 /M期细胞数 ,使停留于G0 /G1 期HUVEC细胞数增加 ,降低HUVEC3 H -Leu的掺入量及PCHA水平。低浓度的PDGF(5ng/ml)对低氧条件培养的HUVEC细胞周期时相分布、3 H -Leu的掺入量及PCNA水平影响不明显 ;高浓度PDGF(1 0ng、2 0ng)加速HUVEC由G1 期S期的转换 ,显著增加低氧培养HUVEC3 H -Leu掺入量 ,PCNA水平 ,此作用呈剂量依赖性。结论　PDGF能够拮抗低氧所致的培养HUVEC增生能力的下降 ,但低浓度PDGF(5ng/ml)作用不显著 ,剂量越大 ,拮抗作用愈显著。     

法莫替丁冲剂在健康人中的生物利用度及药动学研究

本实验采用反相高效液相色谱法，比较了１０名健康志愿者单剂量口服法莫替丁冲剂及等剂量片剂的生物利用度。结果表明：二种剂型的Ｔｍａｘ，Ｃｍａｘ，ＡＵＣ均无显著性差异（Ｐ〉０．０５）。冲剂相对于与片剂的相对生物利用度Ｆ＝１０１．９０。     

驼背二种截骨术远期效果对比

作者对６３２例强直性脊柱炎并驼背畸形施行二种脊柱截骨矫治术，对其中１３５例病人进行了６～１０年观察，结果表明：７１例椎弓椎体联合截骨效果较好，驼背复发平均３．２°。而６４例椎板截骨效果略差，驼背平均复发１３．５°。经统计学处理，两者对比有显著的统计学意义（ｐ＜０．０１）。作者认为病变未完全静止，截骨术式的选择，术中身体重心前移未彻底纠正，以及外固定时间过短等是影响远期效果的因素。     

Longitudinal predictors of continued tobacco use among patients diagnosed with cancer

Even though continued smoking by cancer patients adversely affects survival and quality of life, about one third of patients who smoked prior to their diagnosis continue to smoke after their diagnosis. The implementation of smoking cessation treatments for cancer patients has been slowed by the lack of data on correlates of tobacco use in this population. Thus, this longitudinal study assessed demographic, medical, addiction, and psychological predictors of tobacco use among 74 head, neck, and lung cancer patients. Multivariable binary logistic regression analyses, with outcome categorized as smoker or nonsmoker, indicated that the likelihoodthat patients would be a smoker was associated with lower levels of perceived risk and a higher level of quitting cons. Multivariable nominal logistic regression, with outcome classified as continuous smoker, continuous quitter, relapser, or follow-up quitter, indicated that: (a) patients categorized as continuous smokers reported significantly lower quitting self-efficacy than follow-up quitters and continuous quitters, (b) relapsers reported a significantly lower level of quitting self-efficacy than either follow-up quitters or continuous quitters, and (c) continuous smokers exhibited a significantly lower level of risk perceptions than continuous abstainers. These findings can be useful for the development and evaluation of treatments to promote smoking cessation among cancer patients. Support for this study was provided by National Institutes of Health Grants CA57708, CA06927, CA88610, CA95678, and CA76644.     

Effect of “Re Du Qing” on the activation,proliferation and membrane fluidity of lymphocytes

Summary Effects of Chinese Medicinal Preparation “Re Du Qing” (RDQ) on the activation, proliferation and membrane fluidity of T lymphocytes from human peripheral blood Were studied by means of³H-TdR incorporation and DPH fluorescence polarization. The results showed that “RDQ” can:1) significantly inhibit the activation of T lymphocytes; 2) restrain the proliferation of activated T lymphoblasts in the presence of exogenous interleukin-2 (IL-2); and 3) increase the membrane fluidity of T lymphocytes and antagonize the decreased fluidity of lymphocyte membrane mediated by Con A or PHA. The functional abnormalities of T lymphocytes in some autoimmune diseases such as arthritis and the usefulness of RDQ in the treatment of these diseases were also discussed.     

脑梗塞患者血清脂蛋白（a）测定及其临床意义

应用酶标法测定58例脑梗塞患者和56例健康对照者血清脂蛋白(a)[LP(a)]含量,并同时测定了其他脂代谢指标,对其中26例脑梗塞患者还测定了血浆纤维蛋白溶解(简称纤溶)指标。结果表明脑梗塞组存在显著的脂代谢和纤溶功能紊乱。LP(a)含量增高,与所测脂代谢、纤溶指标无显著相关,是脑梗塞发病独立的危险因素。     

距骨的血液供应及其临床意义

本文观察了２４侧尸体足标本，均无已知临床血管疾病。在死后３６～４８小时之间行动脉灌注ＡＢＳ填充剂，以化学腐蚀和手工剔除的方法清除软组织。距骨的血供来自小腿下部三根主要动脉的分支，即跗骨管动脉和三角支、近端和远端跗骨窦动脉、颈上支及后结节血管丛。跗骨管动脉常发自足底内侧动脉，而三角支多单独自胫后动脉发出；跗骨管动脉通常比三角支和跗骨窦动脉都来得细小。以上的这些动脉相互吻合，形成了一个骨膜血管网，覆盖于全部的距骨非关节面上。而且，环绕着跗骨管、跗骨窦、距骨颈的上面和距骨体部的内侧面，由三角支、跗骨管动脉、跗骨窦动脉、颈上支及其相互之间的吻合血管网形成了一个不定形的距骨动脉环。本文还讨论了距骨缺血性坏死与动脉环的可能关系，距骨骨折脱位或手术后的缺血性坏死是由于距骨动脉环的毁损或功能受影响所致。三角支在距骨骨折脱位时具有重要意义，手术或手法复位时应注意保护。     

新型脊柱固定器械的研制与临床应用

自１９８９年以来，临床应用一种新型脊柱固定器械，共６８例，其中５２例为胸腰椎骨折，１６例为椎体滑脱。经临床观察和随访，治疗效果满意。这种新型固定器械，既可行胸腰椎骨折的固定，也可行椎体滑脱的复位。根据临床需要，该器械可行压缩、撑开、成角和中立位固定。作者强调，脊柱损伤只要有手术指征，手术时机甚为重要，应早期或立即手术，有利于脊柱骨折和椎管前方骨块的复位，早期也有利于神经功能的恢复。