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１ ＣＮＴＦ的研究背景及现状睫状神经营养因子（ＣＮＴＦ）是分子量为２２－２６ＫＤ的酸性蛋白质。早在１９７９年，美国的Ａｄｌｅｒ等从鸡胚的睫状神经节中分离出一种能支持睫状神经元生长的物质叫ＣＮＴＦ［１］。这种物质的发现立即吸引了很多科学家的注意。Ｂａｒｂｉ
1 CNTF research background and status Ciliary neurotrophic factor (CNTF) is a 22-26KD molecular weight of acidic protein. As early as 1979, American Adler et al. Isolated a substance that supports the growth of ciliary neurons from the ciliary ganglion of chicken embryos called CNTF [1]. The discovery of this material immediately attracted the attention of many scientists. Barbi