A Quote by Wayne Pacelle
The good news is we are seeing an incredible surge in non-animal technologies in laboratories. With researchers using stem cells, visually impaired people may one day have new corneas and lenses grown from their own cells. That is likely to be a more effective and cheaper approach than using animals.
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Both in Britain and America, huge publicity has been given to stem cells, particularly embryonic stem cells, and the potential they offer. Of course, the study of stem cells is one of the most exciting areas in biology, but I think it is unlikely that embryonic stem cells are likely to be useful in healthcare for a long time.
Well, there are two kinds of stem cells: adult stem cells, which you can get from any part of a grown body, and embryonic stem cells. These are the inner- core of days-old embryos that can develop into any kind of cell.
For the last century of neuroscience, lots of people have tried to control neurons using all sorts of different technologies - pharmacology (drugs), electrical pulses, and so on. But none of these technologies are precise. With optogenetics, we can aim light at a single cell, or a set of cells, and turn just that set of cells on or off.
Using adult stem cells drawn from bone marrow and umbilical cord blood system cells, scientists have discovered new treatments for scores of diseases and conditions such as Parkinson's disease, juvenile diabetes, and spinal cord injuries.
The average person doesn't understand what a stem cell is. There's a lack of health literacy in our nation. So the public can't really get into this dialogue because they don't understand the complexity of stem cells, not the faith-based approach, not the ideological or political, but the science behind stem cells.
One of the first papers I wrote at the University of Wisconsin, in 1977, was on stem cells. I realized that if I changed the environment that these cells were in, I could turn the cells into bone, and if I changed the environment a bit more, they would form fat cells.
Our goal is to turn solar electric technologies into a commodity business like computer chips, and make them ubiquitous in the built environment. I'd couple this with a huge commitment to fundamental research in nanostructure to goose the next generation of more efficient, cheaper, dematerialized cells. And if I'm truly czar, I'd emphasize silicon technologies, as that approach is the one least likely to encounter material constraints in supplying an explosive global demand.
When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain.
Scientists have stated that embryonic stem cells provide the best opportunity for devising unique treatments of these serious diseases since, unlike adult stem cells, they may be induced to develop into any type of cell.
If stem cells divide equally, so both daughter cells look more or less the same, each one becomes another stem cell. If the split is unequal, neurons form prematurely.
What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.
Adult stem cells have shown great potential and have effectively helped patients. Another alternative is cord-blood stem cells. These are a neglected resource that could be used to treat a diverse body of people.
The most dangerous cancer cells are actually the ones that are more like stem cells, which have this ability to produce themselves over and over again. More and more cancer biologists say stem-cell-like cells in cancers are the most dangerous.
Young people understand that you don't have to wear or eat animals. I get that it can be cheaper to use animal products - but using animals really cuts corners.
Researchers and biotech executives foresee the day when the effects of many catastrophic diseases can be reversed. The damaged brains of Alzheimer's disease patients may be restored. Severed spinal cords may be rejoined. Damaged organs may be rebuilt. Stem cells provide hope that this dream will become a reality.
Today, my brother and I share almost identical DNA, the result of a successful bone marrow transplant I had last April using his healthy stem cells. But Adam and I couldn't be more different.
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