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美国华盛顿消息:据阿拉巴马大学的一项研究称,吸烟者癌前状态的肺细胞是由于局部维生素缺乏而引起,但可被各种维生素所逆转。该大学营养学系主任Charles Butterworth 说,吸纸烟可灭活某些维生素,当烟侵袭肺表面时,引起局部的维生素缺乏。在一项最近已完成的试验中,70名男性受试人20年来或更长时间每天至少吸一包纸烟,研究人员给予他们安慰剂或含10mg叶酸和0.5mg维生素B_(12)在双盲、随机试验期间,受试人继续吸烟和食用正常饮食。试验初期,所有男性的深部痰涂片上均有转化的细胞。当检测吸烟人的痰时,Pap涂片
Washington, United States: According to a University of Alabama study, smokers pre-cancerous lung cells are caused by local vitamin deficiencies but can be reversed by various vitamins. Charles Butterworth, director of the University’s Department of Nutrition, said smoking cigarettes inactivates certain vitamins that cause localized vitamin deficiencies when smoke attacks the lungs. In a recently completed trial, 70 men took at least one pack of cigarettes daily for 20 years or more and were given placebo or 10 mg of folic acid and 0.5 mg of vitamin B 12 in a double-blind During the randomized trial, subjects continued to smoke and consumed normal diet. Early in the trial, all men had transformed cells in deep sputum smear. When smear-tested sputum, Pap smears