急求4文献，非常感谢！！！

yaolinzhang

1.Using TUNEL in Combination with an Active Caspase-3 Immunoassay to Identify Cells Undergoing Apoptosis in Preimplantation Mammalian Embryos' o, r. Z8 u2 G4 v9 ^
http://link.springer.com/protocol/10.1385%2F1-59259-741-6:393% N# a! d) Q& A
2.p16INK4a induces an age-dependent decline in islet regenerative potential
, w2 C  _( `4 X, z- u& c8 X% shttp://www.nature.com/nature/jou ... ll/nature05092.html
# d0 u5 @" T7 x3.Calcineurin/NFAT signalling regulates pancreatic β-cell growth and function' {$ j3 w+ w" a2 I5 T
http://www.nature.com/nature/jou ... ll/nature05097.html9 g) Y8 Q. e8 d
4.Potentiating the antitumour response of CD8+ T cells by modulating cholesterol metabolism
# w( R. m9 X( |3 c: n$ Lhttp://www.nature.com/nature/jou ... ll/nature17412.html