Reductions in serum IGF-1 during aging impair health span

Zhenwei Gong, Oran Kennedy, Hui Sun, Yingjie Wu, Garry A. Williams, Laura Klein, Luis Cardoso, Ronald W. Matheny, Gene B. Hubbard, Yuji Ikeno, Roger P. Farrar, Mitchell B. Schaffler, Martin L. Adamo, Radhika H. Muzumdar, Shoshana Yakar