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斯坦福大学医学院开发出一种延长人类DNA端粒长度的技术。该技术可以增加细胞分裂的次数,让细胞的年轻态更为持久。这对早衰症、杜兴氏肌肉营养不良症甚至是心脏病的治疗提供了思路。端粒是染色体末端的DNA重复序列,作用是保持染色体的完整性。细胞每分裂一次,端粒长度就缩短一点,到了某个关键点,细胞不再分裂,就会死亡。年轻人的端粒有8 000~10 000个核苷酸。研究人员开发出的这种技术将端粒延长了1 000个核苷酸长度。
Stanford University School of Medicine developed a technology to extend the length of human DNA telomeres. The technology can increase the number of cell divisions, so that the cells of the young state more durable. This provides preconditions for treatment of premature aging, Duchenne muscular dystrophy and even heart disease. Telomeres are DNA repeats of the end of the chromosome that function to maintain chromosomal integrity. Once the cells divide, the telomere length is shortened, and at a certain point, the cell will not divide and will die. Telomeres in young people have 8,000 to 10,000 nucleotides. The technology developed by researchers extends telomeres by 1,000 nucleotides in length.