Oxygen control of stem cell niches and cell fates

Did you know that physiological normoxia generally falls in the 2-9% O2 (14.4-64.8 mm Hg) range for most adult cells in vivo? 3 remarkable exceptions are thymus, kidney medulla and most importantly bone marrow which can exist at 1% O2 (7.2 mm Hg). On the other hand, stem and progenitor cells are frequent residents of… Continue reading Oxygen control of stem cell niches and cell fates

“What is the meaning of life?” for a life extensionist

In No kidding, I am a cum laude philosopher, and so can you! it turned out that finally I got a philosophy diploma. That said, from now on I am officially qualified to think on the big questions of life. For instance, I can find out new arguments and concepts and I can answer (or… Continue reading “What is the meaning of life?” for a life extensionist