抗癌“良药”食中求（三）

美国环境毒物学博士罗伯特·哈瑟瑞钻研环境毒物学，更深入探讨食物中所含有的诱发或抑制癌症基因的化学物质，建议利用8大类蔬果中所含的维生素和天然抗癌物质，达到防癌、抗癌的目的。现将这8类食物及其所含防癌物质介绍如下：[第一段]     

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.     

不定陈述综合征及其诊治

仅有病人自述许多性质不定、部位各异的症状,却没有相关器质性病变的一组症候群称之为不定陈述综合征(u-nidentified complaints syndrome)。     

不同临床和病理分型对肝门部胆管癌切除术预后的影响

目的 研究临床和病理分型与肝门部胆管癌切除术疗效的关系。方法总结1993年至2004年在解放军总医院肝胆外科手术切除的肝门部胆管癌198例病例资料。结果临床分型Ⅰ型34例，Ⅱ型60例，Ⅲa型27例，Ⅲb型33例，Ⅳ型19例，Ⅴa型6例。Ⅴb型19例。病理高分化腺癌35例，中分化腺癌52例，低分化腺癌54例，三者的中位生存期分别为29．5、11、5．5个月；病理切缘阴性者与切缘阳性者生存率有显著性差异（P 〈0．05）。手术并发症出现率41．4％，围手术期死亡1例。结论肝门部胆管癌根据临床分型进行相应的手术治疗；病理切缘阴性是影响预后的主要因素之一；围手术期正确处理，是减少手术并发症，提高患者生活质量和延长生存期的关键。     

股骨粗隆间骨折分型

股骨粗隆间骨折又名股骨转子间骨折，是老年人常见的骨折。随着社会的老龄化，人均寿命的延长，骨质疏松人数的增加，老年人发生股骨粗隆间骨折的概率呈上升趋势。仔细研究股骨粗隆间骨折的分型有利于对骨折程度作出更准确的评价，以选择更加适合的治疗方法和判断预后。本文就股骨粗隆间骨折的分型加以综述。     

核糖体蛋白基因RPS13与RPS26在部分非霍奇金淋巴瘤中表达的定量研究

近来研究表明，核糖体蛋白基因（RPG）的异常与肿瘤的发生、发展相关。我们研究发现RPG家族成员RPS13和RPS26在人鼻型NK／T细胞淋巴瘤中表达明显下调。本研究运用实时荧光定量PCR方法对一组不同组织学类型的非霍奇金淋巴瘤样本中RPS13和RPS26基因表达进行检测，旨在了解其在上述各肿瘤中的表达情况及其意义。     

第四届C1酯酶抑制物缺乏症工作组会议简介

第四届C1酯酶抑制物(CIINH)缺乏症工作组会议(4^th C1 inhibitor deficiency workshop)于2005年4月28日至2005年5月1日在匈牙利首都布达佩斯举行，共有来自23个国家的近200名代表参会。CIINH缺乏症可分为遗传性和获得性。遗传性CIINH缺乏症又称遗传性血管性水肿(hereditary angioedema，HAE)是一种罕见的常染色体显性遗传病。病因为编码CIINH的基因缺陷，导致血浆CIINH缺乏，发病率约为1／10000～50000。其临床表现为反复发作的皮肤及黏膜水肿，主要累及肢体、颜面、上呼吸道及胃肠道。如不能及时诊治，30％的患者因喉水肿窒息死亡。     

聚焦国宝神茶——金花茶

黄色梦幻曲 在众多的茶花品种中,绝大多数为白色或红色,只有金花茶具有黄色基因,通过金花茶基因与其他山茶花品种进行杂交,可以培育出各种颜色花瓣的茶花新品种,甚至可以培育出一株树上同时开多种颜色的茶花.     

发作性睡病与HLA—DQB1＊0602基因的相关性研究

目的 探讨发作性睡病与HLA—DQB1基因的相关性。方法 对30例发作性睡病患者的临床资料进行分析。用序列特异性引物-聚合酶链反应（PCR-SSP）分型技术测定HLA—DQB1等位基因，并与44例健康人检测的数据进行比较。结果 发作性睡病患者组DQB1＊0602基因频率为40％，与正常对照组9．09％相比较明显增高；未检出DQB1＊0401—0402基因，与正常对照组9．09％相比较，经统计学分析，差异有显著性（P〈0．05）。结论 HLA—DQB1＊0602基因为中国发作性睡病人群的易感基因；HLA-DQB1＊0401—0402基因为中国发作性睡病人群的保护基因。