吃主食护大肠

英国剑桥大学最近在一项研究中,分析了10多个国家的人的饮食习惯和癌症之间的关系,结果发现,食用淀粉类食物越多,小肠、结肠和直肠癌的发病率越低.比如,以肉类食物为主食的澳大利亚人,结肠癌发病率是以淀粉类食物为主食的中国人的4倍.     

凉菜拌出夏日风情

不知不觉又进入了夏季,南方的潮湿,北方的燥热,常常使人食欲不振,精神委靡,尤其是对于康复期的病友来说,怎一个"热"字了得.夏季的饮食调养,应选择清凉爽口、少油腻、易消化的食物.这时从配角一跃成为主角的凉菜就闪亮登场了,不论生拌、热炝,每道菜都做足了开胃功夫,它们少油,少盐,对我们的健康大有裨益;省时省力,让我们减轻在厨房的劳动强度.只要掌握烹饪技巧,制作起来还是很简单的.     

过敏体质,怎么吃?

什么是过敏呢?过敏反应又称作变态反应,是患者身体对一种或多种物质的过强反应.其主要机制是由于过敏性素质患者的体内产生了过多的过敏抗体——免疫球蛋白E,它和环境中的过敏原相互作用,刺激机体产生和释放某些过敏介质,导致不同组织的损伤,继而产生各种症状.     

文艺汇演群星璀璨

2006年1月8日,中国抗癌协会癌症康复会在"北京展览馆剧场"圆满成功地举办了"阿斯利康首届全国癌症康复者文艺汇演--生命恋歌".这次文艺汇演有26个省、市上报节目50多个,经筹备组认真筛选,选出正式参加演出的节目16个,特邀节目3个,出演的癌症患者近300人.     

钻石之光--山药

"每个人都能在自家的后院找到钻石",有人借用此言,把山药比做养生的钻石. 山药是一种薯科植物,它的根茎垂直而颀长,往往盈尺,生长在坚硬的山冈的土质中,旋转攀缘.阳光下,山药的叶子很美,颜色从浓到浅,绿得缤纷,但被我们称之为钻石的是它营养丰富的块状根茎.山药的外观看上去粗糙,细小密布的根须如刺如须,但削了皮,却洁白得如水生荸荠,分泌一些透明的黏液,柔滑得抓它不住,仿佛泥鳅从手中挣脱.     

苦参碱对HepG2细胞杀伤作用及机制研究

Objective:To investigate the death mode of human hepatoma cells exposed to matrine and the role of glutathione (GSH) and cytochrome c.Methods:The MTT test and Cell Death Detection ELISA were used to identify cell death mode and viability of cells exposed to matrine.The volume of intracellular GSH was detected by GSH reductase.Finally Western blotting was chosen to analyze the expression of cytochrome c and Caspase-9 in HepG2 cells treated by matrine.Results:The apoptotic cell death induced by matrine in Hep G2 cells dramatically increased in the time-,dose-dependent manner.Matrine can exhaust intracellular GSH effectively to change the redox state in cells.Furthermore it affect the cytotoxicity of matrine.Results of Western blotting showed that matrine induced the release of cytochrome c from mitochondria to cytoplasm,and then stimulate the cleavage of Cespese-9 in a time-dependent manner.Conclusion:Matrine induced apoptosis in Hep G2 cells through the mitochondrial pathway,and oxidative stress via depletion of GSH is directly involved in the apoptotic process.     

Benefit of adjuvant chemoradiotherapy in patients with pathologically lymph node-positive and locally advanced gastric cancer

Objective This study aimed to compare the effectiveness of adjuvant chemoradiotherapy(CRT)and adjuvant chemotherapy(ChT)for T3–4/N+gastric cancer(GC)following D2/R0 dissection,and identify the specific subgroups that could benefit from adjuvant CRT.Methods All eligible patients were divided into the CRT group and ChT group.We assessed the survival outcomes and patterns of recurrence for each group,and determined the prognostic factors for survival by performing Cox proportional risk regression analyses.Results A total of 192 gastric cancer patients were included in the study.The estimated 3-year and 5-year disease-free survival(DFS)probabilities in the CRT and ChT groups were 52.9%vs.36.7%(P=0.024)and 41.2%vs.31.1%(P=0.148),respectively,and the estimated 3-year and 5-year overall survival(OS)probabilities were 82.4%vs.70.0%(P=0.044)and 52.0%vs.35.6%(P=0.022).Patients in the CRT group had a lower risk of locoregional recurrence than those in the ChT group(20.6%vs.34.4%;P=0.031).The subset analyses revealed that patients with stage N1–2 disease were more likely to benefit from adjuvant CRT than from adjuvant ChT(DFS:53.1%vs.36.4%;P=0.039;OS:53.1%vs.38.6%;P=0.036).Conclusion For locally advanced gastric cancer patients with LN+,adjuvant CRT showed superior survival benefits compared with adjuvant ChT alone.Patients with N1–2 achieved better survival from adjuvant CRT.     

肺癌放疗新技术

肺癌是危害人类生命的最主要的癌肿,是名副其实的"癌王",特别是在发达国家更是如此.简单地说美国男性死于恶性肿瘤患者中约每3人中有1例是肺癌,女性中每4人中有1人是肺癌.中国随着城市化进度的加快和吸烟人群的增多,肺癌患者会越来越多.笔者在美国最著名的癌症医院--德州安德森肿瘤中心做客座教授期间接触了来自世界各地的放疗科医生,他们都在努力研究如何延长肺癌患者的生存期,提高生存质量.下面介绍一下这方面的最新技术.     

熏烤煎炸不安全

据说人类发现用火是由于森林起火烧焦了动物而引起的,从那时起,便尝到了烧烤味道的鲜美.时至今日,熏烤煎炸食品气味香,味道美,仍不免会令人垂涎三尺,颇受嘴馋的人或一些儿童、少女青睐,从而造就许多中国人有喜食这类食品的习惯.这类食品如在聚餐酒桌上品尝助兴,少量吃点在所难免,如果大量贪食则可能会对健康不利.化学家在研究癌症病因时,发现一种很强的致癌物质苯并芘,它属于多环芳烃类化合物,与熏烤煎炸食物有关,并引起人们的关注.