Word: cellsã
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...other hand, therapeutic cloning—used to create stem cells??€”is ethically acceptable. The possibilities for stem cells derived from therapeutic cloning are immense. Great gains might be made in treating multiple sclerosis, Alzheimer’s and various other crippling diseases. And because it will never result in the birth of a cloned embryo, therapeutic cloning is free from many of the ethical dilemmas confronting reproductive cloning...
...particular, he was fascinated by how the extracellular matrix—the jelly-like substance surrounding cells??€”affects intracellular processes. Much of Bernfield’s work involved the isolation and characterization of proteoglycans, proteins of the extracellular matrix with key roles in tissue development...
Within the next few weeks, thermos bottles containing about a hundred donated human embryos—each composed of only a few cells??€”will arrive at the renovated labs of Douglas A. Melton, Cabot Professor of the Natural Sciences...
Since President George W. Bush restricted embryonic stem cell research last August, approximately 30 couples treated by local fertility clinic Boston IVF chose to donate their leftover embryos to Melton’s lab. Many did so in the hopes of harnessing the enormous potential of the embryonic stem cells??€”widely recognized for their ability to develop into any other type of cell—to find a treatment for type 1 diabetes, according to Powers...
Once at the lab, the embryos will be thawed and destroyed in the process of isolating stem cells??€”a controversial action Bush had aimed to prevent by limiting federal funding to research with existing embryonic stem cell lines...