1. Enhancement of natural killer cells and increased survival of aging mice fed daily Echinacea root extract from youth

   • Mélnie Brousseau
   • Sandra C. Miller

   Research article Pages: 157 - 163

2. Age-dependent increase of prolyl-4-hydroxylase domain (PHD) 3 expression in human and mouse heart

   • Susanne Rohrbach
   • Andreas Simm
   • Dörthe M. Katschinski

   Research article Pages: 165 - 171

3. Regulation of p70^S6k, GSK-3β, and calcineurin in rat striated muscle during aging

   • R. S. Kinnard
   • D. B. Mylabathula
   • E. R. Blough

   Research article Pages: 173 - 184

4. Age- and gender-related alterations of the number and clonogenic capacity of circulating CD34⁺ progenitor cells

   • Raffaella Moresi
   • Silvia Tesei
   • Mauro Provinciali

   Research article Pages: 185 - 192

5. Age-related susceptibility of naive and memory CD4 T cells to apoptosis induced by IL−2 deprivation or PHA addition

   • Alessia Donnini
   • Francesca Re
   • Mauro Provinciali

   Research article Pages: 193 - 204

6. Is aging the price for memory?

   • Alexei Terman
   • Ulf T. Brunk

   Opinion Pages: 205 - 210

7. “My involvement in aging research was just a series of coincidences” An interview with Kenichi Kitani

   • Sataro Goto

   Interview Pages: 211 - 221

8. Second IRCHAL conference and the communication of biogerontology to health care personnel

   • Suresh I. S. Rattan

   Meeting report Pages: 223 - 224