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[合众国际社波士顿1980年9月1日电]在人的唾液中有一种浓缩的化学生长因子具有自然愈合剂的作用,现正在进行试验中。科学家们说,这一发现可能使人们能更好地理解癌细胞的无节制的生长。 1950年从癌细胞中分离出一种神经生长因子(NGF),发现此因子能使鸡胚中的神经细胞急剧生长。最近发表在国立科学院会议录中的一项研究也表明,当以NGF敷于暴露伤口时,能加速愈合4～5倍。NGF天然存在于哺乳动物的唾液中。佛罗里达大学医学院研究人员扬(Michael Young)医生是哈佛大学的一个小组的领
[United States of America News, Boston, September 1, 1980] There is a concentrated chemical growth factor in human saliva that has the function of a natural healing agent and is currently being tested. Scientists said that this discovery may enable people to better understand the uncontrolled growth of cancer cells. In 1950, a nerve growth factor (NGF) was isolated from cancer cells and it was found that this factor can make nerve cells in chick embryos grow rapidly. A study recently published in the National Academy of Sciences conference also showed that when NGF is applied to exposed wounds, it can accelerate healing four to five times. NGF is naturally present in mammalian saliva. Dr. Michael Young, a researcher at the University of Florida Medical School, is a team leader at Harvard University.