FasL基因表达对缺氧状态下直肠癌细胞增殖凋亡的影响

Objective To elucidate the effect of FasL gene expression on the proliferation and apoptosis of hypoxic rectal carcinoma cells. Methods The normoxic expression level of FasL in HR-8348 subtype cells (HR-8348B, HR-8348L, HR-8348F and HR-8348As) with different invasive power were verified by Western blot. Hypoxia models for HR-8348B, HR-8348L, HR-8348F and HR-8348As were constructed with chemical modeling, then the FasL levels in all groups at 12 h after hypoxia were quantitated by Western blot. Distribution of different cell life cycles was determined with flow cytometry. Cell reproductive activities were detected with MTT method, and cell apoptesis was assessed with TUNEL. Results FasL protein was pigmentized at the position of 40 000 by Western blot, and the expression level of FasL was significantly higher in HR-8348F cells than those in HR-8348B, HR-8348L and HR-8348As cells(F=361.149, P<0.01) in normoxia. At 12 h after hypoxia, the FasL level was also significantly higher in HR-8348F cells than those in other groups (F=278.766, P<0.01), but was not markedly different as compared to themselves in normoxia (t=1.762, P>0.05). The proliferation index was significantly higher in HR-8348F (60.43±3.72) than those in HR-8348B (40.01±3.30), HR-8348L (41.30±4.06) and HR-8348As cells (35.87±4.39), respectively (F=39.477, P<0.01). However, both inhibition rate of proliferation and apoptotic index were remarkably lower in HR-8348F (17.30±1.98 and 13.10±1.04) than those in HR-834B (33.70±4.33 and 21.60±1.31), HR-8348L (34.20±3.92 and 20.10±1.15), and HR-8348As (38.00±4.55 and 23.90±1.23), respectively (F=28.811 and 76.462, respectively, P<0.01). Conclusion The expression enhancement of intracellular FasL in rectal carcinoma in hypoxia can lead to accelerated proliferation and reduced apeptosis of cells, which will promote tumor cells to adapt microenvironmental hypoxia.     

腹腔镜肝切除术患者的护理

笔者报道腹腔镜肝切除术患者的护理。术前进行心理护理和呼吸训练；术后注意早期活动，加强腹腔镜CO2气腹后的观察、护理，做好皮下气肿、胆漏、出血、高碳酸血症和下肢静脉血栓等术后并发症的观察及护理。认为周到细致的护理是手术成功的重要保证。     

肺泡蛋白沉积症的X线与CT诊断(附4例报告并文献复习)

目的分析肺泡蛋白沉积症的X线与CT表现,提高对本病的认识。方法回顾性分析4例经X线与CT检查并经病理证实的肺泡蛋白沉积症,分析其X线与CT征象。结果4例病变中皆见到弥漫性斑片影与磨玻璃影,CT扫描病灶呈地图样分布。结论CT对肺泡蛋白沉积症的范围、程度及病变轮廓的显示较X线平片准确,根据CT和HRCT表现的典型特征,可以作出可靠的诊断。     

上海市长宁区社区居民健康行为咨询点状况评估

目的了解社区居民健康行为咨询点现况,以进一步规范咨询点工作,为居民提供一流健康服务。方法采用资料法、现场观察法及问卷调查方法,对全区所有咨询点的硬件、软件配备情况、工作开展情况和规范程度以及咨询点服务对象对咨询点知晓情况、满意度进行综合评估。结果60.5%的咨询点工作完全达标;99.2%的居民知晓服务信息;97.8%的居民接受过咨询服务,居民对咨询点服务满意率达97.2%;分别有25.7%的咨询员、50.4%的居委干部、23.2%的居民提出增加服务时间、内容,改善服务条件等建议。结论调查对象对健康行为咨询点服务满意度逐年上升,但咨询点的整体服务水平还有待提高,特别在服务时间、服务内容以及服务条件等方面,还有待完善。     

人工髋关节置换术后脂肪栓塞综合征的观察与护理

笔者报道人工髋关节置换术后脂肪栓塞综合征的护理措施认为重视氧饱和度及动脉血氧分压监测，注意观察中枢神经系统症状和呼吸系统症状，及时发现并纠止低氧血症，对不同的病人制定不同护理方案，严密观察病情，及时掌握病情变化：是护理的关键。     

门静脉高压症异位静脉曲张研究进展

异位静脉曲张（ectopic varices，EV）是指门静脉高压症引起的食管胃底以外的静脉曲张，属于门体循环间开放的侧支，最常见于十二指肠。EV的发病机制主要为肝内门静脉高压、肝外门静脉或脾静脉血流受阻和腹腔粘连。临床上以反复的消化道出血和血腹较常见。内镜检查作为首选的常规诊断手段，结合多普勒超声和血管造影多能确诊。[第一段]     

Initial approach to the cellular irradiation injury of human pancreatic carcinoma cell line MIA PaCa-2 by high dose per fraction

Objective  

To investigate an initial approach of radiotherapy, which produces cellular radiation injury by high dose in one fraction.     

固本延衰方对亚急性衰老模型小鼠IL-2及其受体表达的影响

目的:探讨固本延衰方延缓亚急性衰老模型小鼠衰老的机制。方法:将60只小鼠随机分为4组,除正常对照组外均皮下注射D-半乳糖造成衰老模型,并给予不同剂量的固本延衰方治疗,分别用放免法及流式法测定脾淋巴细胞白细胞介素2及其受体水平。结果:衰老模型组IL-2及其受体水平明显低于正常对照组(P<0.05),固本延衰方各剂量组IL-2及其受体水平明显高于衰老模型组(P<0.05,P<0.01)。结论:提示固本延衰方通过提高衰老机体淋巴细胞IL-2及其受体表达水平,从而调节机体免疫功能延缓衰老。     

不同免疫剂治疗扩张型心肌病患儿心功能和临床预后评价

目的观察比较泼尼松联用硫唑嘌呤和大剂量静脉用免疫球蛋白(IVIG)对扩张型心肌病(DCM)患儿心功能及预后的影响。方法将DCM患儿20例分为治疗Ⅰ和Ⅱ组,分别在传统抗心衰治疗基础上加泼尼松联用硫唑嘌呤和大剂量IVIG,治疗1个疗程后评价心功能,检测治疗前后左房横径(LA)、左室舒张期内径(LV)、左室射血分数(LVEF)、心脏指数(CI),并计算其治疗前后变化。所有病例随访1年,计算1年存活率。结果治疗Ⅱ组心功能明显优于治疗Ⅰ组(P均<0.05);两组LA、LV、LVEF和CI治疗后较治疗前均有明显改善(P均<0.05);治疗Ⅰ组各参数变化明显低于治疗Ⅱ组(P均<0.05),其1年存活率明显低于治疗组Ⅱ(P<0.05)。结论泼尼松联用硫唑嘌呤和大剂量IVIG均能改善DCM患儿心功能,但IVIG疗效优于泼尼松联用硫唑嘌呤。