3[1]Quaglino D,Capri M,Bergamini G,et al. Age-dependent remodeling of rat thymus,morpholo-gical and cytofluorimetric analysis from birthup to one year of age [J].Eur J Cell Biol, 1993,76:156-166.
4[2]Ameho CK, Adjei AA, Yamauchi K , et al. Modulation of age-related changes in immune functions of protein-deficient senescence-accelerated mice by dietary nucleoside-nucleotide mixture supplementation [J]. Brit J Nutr, 1997,77: 745-749.
5[4]Aspinall R,Andrew D. Thymic atrophy in the mouse is a soluble problem of the thymic environment [J]. Vaccine, 2000,18:1629-1637
6[6]Bhatia SK,Tygrett LT,Grabstein K H,et al. The effect of in vivo IL-7 deprivation on T cell maturation [J]. J Exp Med ,1995, 181:1399- 1409.
7Jyonouchi H,J Nutr,1997年,127期,411页
8团体著者,中国老年学杂志,1996年,16卷,276页
9Bergler W,Adam S,Gross HJ,et al.Age-dependent altered proportions in subpopulations of tonsillar lymphocytes[J].Clin Exp Immunol,1999,116:9-18.
10Esparza B,Rodriguez A,Puente M,et al.T cell receptor V-segment frequencies in peripheral CD8+ T cells in aging[J].Immunol Invest,1998,27:303-307.