防治癌癥的得力“助手”——硒

1、防治癌癥的得力“助手”硒    DDDDDD                                            

2、;                                                  

3、;                                                  

4、;                                                  

5、;                                                  

6、;                                                  

7、;                                                  

8、;                                                  

9、;                                                  

10、;                                                  

11、;                                                  

12、;                                                  

13、;                                                  

14、;                                                  

15、;                                                  

16、;                                                  

17、;                                                  

18、;                                                  

19、;                                                   

20、60;                                                 

21、60;                       歡迎朋友光臨ABC328圖書館                        

22、                                 此處插入內(nèi)容                 

23、;            防治癌癥的得力“助手”硒                                    

24、0;                                                 

25、0;                                                 

26、0;         作者：方玨敏;王理偉 來源：新民晚報(bào)                                      

27、60;                                                 

28、60;                                                 

29、60;                                                 

30、60;                                                          

31、0;                                                 

32、0;                                                 硒與癌癥密切相關(guān)，

33、美國(guó)一些城市的癌癥死亡率與當(dāng)?shù)毓任镏形砍守?fù)相關(guān)，即低硒地區(qū)癌癥死亡率高。他們發(fā)現(xiàn)人食物中硒的含量或血中的硒含量與癌癥發(fā)生率呈負(fù)相關(guān)，而補(bǔ)硒則有利于降低癌癥，特別是肝癌、前列腺癌、結(jié)直腸癌、肺癌的發(fā)生率與死亡率。        中國(guó)醫(yī)學(xué)科學(xué)院腫瘤研究所的專家收集了8個(gè)省24個(gè)城市1458份血樣，測(cè)定其中的硒含量，結(jié)果發(fā)現(xiàn)低硒地區(qū)的胃癌、食管癌、肝癌的死亡率明顯高于高、中硒地區(qū)。江蘇省啟東市是我國(guó)肝癌高發(fā)區(qū)之一，其肝癌高發(fā)鄉(xiāng)和低發(fā)鄉(xiāng)發(fā)病率相差4倍，這種發(fā)病率的差異與當(dāng)?shù)丶Z食中硒或血硒含量呈明顯的負(fù)相關(guān)。給這些居民補(bǔ)

34、硒使得原發(fā)性肝癌發(fā)病率下降了50%。        硒通過5個(gè)途徑達(dá)到它神奇的防癌、抗癌作用。        1.改善免疫功能，提高抗癌能力。硒不但顯著地影響免疫系統(tǒng)，調(diào)節(jié)機(jī)體，而且還能促進(jìn)部分淋巴細(xì)胞產(chǎn)生抗體，使血液免疫球蛋白水平增高或維持正常。        2.提高機(jī)體抗氧化能力。腫瘤病人廣泛存在抗氧化不平衡，含硒酶可使脂質(zhì)過氧化物、過氧化氫等得到有效

35、的清除。        3.阻斷腫瘤血管形成，防止腫瘤復(fù)發(fā)、轉(zhuǎn)移。腫瘤的轉(zhuǎn)移和生長(zhǎng)，依賴于自身建立一套血管系統(tǒng)，而硒可以促進(jìn)“抗腫瘤新生血管生成抑制因子”的生長(zhǎng)，從而抑制“腫瘤新生血管網(wǎng)”的形成與發(fā)展，切斷腫瘤細(xì)胞的營(yíng)養(yǎng)供應(yīng)渠道。        4.從分子水平上抑制腫瘤發(fā)生。硒能通過多種途徑調(diào)節(jié)與腫瘤生物學(xué)特性有關(guān)的基因表達(dá)、蛋白合成，從而誘導(dǎo)腫瘤分化并抑制其生長(zhǎng)。      

36、  5.硒能增強(qiáng)放、化療的療效。人體內(nèi)腫瘤乏氧細(xì)胞對(duì)放、化療不敏感，常成為腫瘤難以治愈的根源。硒能修復(fù)腫瘤未成熟血管，減少腫瘤乏氧細(xì)胞，提高放、化療治愈腫瘤的效果。        2003年，美國(guó)食品和藥物監(jiān)督管理局（FDA）確認(rèn)硒是抑癌劑，這給我們攻克癌癥“難關(guān)”開辟了新途徑，帶來了新希望！        上海交通大學(xué)附屬第一人民醫(yī)院腫瘤診治中心  方玨敏  王理偉（教授）&

37、#160;                                                 &

38、#160;                                                 &

39、#160;                                                 &

40、#160;                                                 &

41、#160;                                                  

42、                                    點(diǎn)擊進(jìn)入更多精彩>>>           

43、60;                                             您已欣賞本篇日志 分 秒.謝謝朋友對(duì)我的支持! 

44、60;                                                 

45、60;                                                   &

46、#160;                                                 &

47、#160;                                                 &

48、#160;                                                 &

49、#160;                                                 &

50、#160;                                                 &

51、#160;                                                 &

52、#160;                                                 &

53、#160;                                                 &

54、#160;                                                 &

55、#160;                                                                       &