Stem Cells

Retinal pigment epithelial cells made from stem cells / CC BY-NC-SA 2.0 An important milestone in the field of regenerative biology has been reached: earlier this month a Japanese patient became the first person to receive a tissue transplant derived…

 Let’s consider a virus like Human Immunodeficiency Virus (HIV). If we want to study it in a lab setting, we need an animal model, that is a living entity that we can infect and observe for a certain period of time. We cannot infect humans for obvious…

While previous gene therapies often made unpredictable changes in the cell’s genetic structure, these researchers showed an efficient method of disrupting a specific gene without making any other changes in DNA, removing unacceptable side-effects.

Unfortunately, this concept isn't new – several other groups have generated similar pigs

"... several groups have previously demonstrated that circulating factors found in young mouse blood are capable of rejuvenating various organs in aged mice."

Scientists recently analyzed the blood of a woman who lived a healthy life up to the age of 115. They were surprised to discover that 64% of her blood cells were descended from only two different blood stem cells. Is this the key to longevity? There’s…