Scientists Progress in Quest to Grow Muscle Tissue in Labs - "The researchers are now working on optimizing the growth of human muscle tissue, including finding a way to get blood flow to the tissue, the best source of cells and the best growing medium for the cells."
Using a 3-D petri dish, Researchers at Brown University and Women & Infants Hospital of Rhode Island have built a completely functional artificial human ovary that will allow doctors to harvest immature human egg cells (oocytes) and grow them into mature, ready-to-be-fertilized human eggs outside the body. (In vitro) The advance could eventually help preserve fertility for women facing chemotherapy or other medical treatments that may be destructive to ovarian folliculogenesis. Press Release. Article link. (paywall) [more inside]
grumblebee's post about cell size and scale the other day was quite fascinating. Pulling back to the home for that site, the Genetic Science Learning Center at the University of Utah delivers educational materials on genetics, bio-science and health topics ranging from stem cells to gene therapy, and from epigenetics to heredity. Explore the neurobiology of normal and addicted brains and the genetic contribution to this chronic disease.
Scientists Repurpose Adult Cells - "Scientists have transformed one type of fully developed adult cell directly into another inside a living animal, a startling advance that could lead to cures for a variety of illnesses and sidestep the political and ethical quagmires associated with embryonic stem cell research." [nature abstract, nature writeup, audio announcement]
Scientists have discovered that "endometrial regenerative cells" (ERC's) -- in other words, human menstrual blood -- contains stem cells. ERC-derived stem cells seem to have a number of superior traits to both bone marrow derived and umbilical cord derived stem cells, the previous gold standards: they can give rise to a variety of different cell lines without differentiation, they multiply more quickly than other stem cells, they are able to replicate more times without adversely mutating, and they apparently do not need to be closely genetically matched to the recipient. Now some women have even begun banking their menstrual blood to preserve their stem cells through a company called "C'Elle: Your Monthly Miracle" -- check out their FAQ and online video. This follows last May's announcement that menstrual blood derived cells can pretty much cure Duchenne Muscular Dystrophy in mice, a disease for which there is no current therapeutic treatment available.
Thou shalt not make scientific progress. "Medical research is poised to make a quantum leap that will benefit sufferers from Alzheimer's, Parkinson's, muscular dystrophy, diabetes and other diseases. But George W. Bush's religious convictions stand in its way."