Discarded placentas deliver researchers promising cells similar to embryonic stem cells
...ells with the same potential to treat diseases and regenerate tissues as their more controversial counterparts, embryonic stem cells, suggests a University of Pittsburgh study to be published in the journal Stem Cells and available now as an early online publication in Stem Cells Express. A part of the placenta...Elderly mice yield clues to the process of growing old
...ost, tissue structure and the ability of tissue to regenerate are impaired," Prolla explains. "We have observed that in tissues like bone marrow, intestine and hair follicles." The altered mice used in the study were created by manipulating mouse embryonic stem cells to produce mice with the defective DNA proo...Nanotubes inspire new technique for healing broken bones
... material. Grafts provide a framework for bones to regenerate and heal, allowing bone cells to weave into the porous structure of the implant, which supports the new tissue as it grows to connect fractured bone segments. The new technique may someday give doctors the ability to inject a solution of nanotubes in...Groundbreaking study shows adult stem cells have same ability to self-renew as embryonic
...ation doublings while maintaining their ability to regenerate muscle in an animal model, a key finding indicating that they could maintain their treatment potential. This ability to self-replenish is significant because in order for stem cells to be used for treatment, a large quantity of the cells would be re...Steven M. Larson named recipient of SNM's 2005 Georg Charles de Hevesy Nuclear Pioneer Award
...s, provide enthusiasm and energy that continuously regenerate a creative clinical and research environment. I have no doubt that one day, some of these fine scientists will make their indelible marks on our field," noted Larson. "I also want to thank my family--Elaine, Nathan and Justine--for their advice, cont...Most common lung cancers may begin in newly discovered cells
...t group of cells known as "cancer stem cells" that regenerate the tumor, a capacity that most cells in a tumor lack. "They may be the cells that we have to eliminate in cancer in order to obtain durable cures for the disease," said Jacks. "Along the way, we need to know how these cancer stem cells become diffe...For first time, brain cells generated in a dish
... disease and others of that nature, the ability to regenerate the needed cell type and placing it in the correct spot would have major impact," said Dr. Eric Holland, a neurosurgeon at Memorial Sloan-Kettering Cancer Center in New York who specializes in the treatment of brain tumors, but who is not connected t...Mount Sinai Hospital researcher develops Canada's first embryonic stem cell lines
...t bodies holds enormous promise for these cells to regenerate damaged tissues that cause incurable diseases." The Canadian Institutes of Health Research's Stem Cell Oversight Committee (SCOC) determined that Dr. Nagy derived these new stem cells lines in a manner consistent with the Stem Cell Guidelines. The tw...Developing nervous system sculpted by opposing chemical messengers
...r the nervous system. If you're going to repair or regenerate nerves in, for example, spinal cord injury you need to know how to form synapses for the right connections to be made."...Discovery at UCSB may lead to new drugs to treat cancer, control fertility
... new career, either productive, as when stem cells regenerate organs, or sinister, as in cancer metastasis." Fusion is the process that allows a sperm to fertilize an egg; it also allows a cancer cell to join with a normal cell. The discovery by Rothman and his co-authors reveals that the inappropriate joinin...Ecosystems, economic choices and human well-being
...e food, medicines, energy, and raw materials. They regenerate soils and pollinate crops, regulate the climate, control floods, and offer recreational opportunities and spiritual renewal. Ecosystem services are valued at $30 trillion more than the combined domestic product of all nations. Degrading them causes ...Researchers feed tiny pills of RNA to planarians to identify genes essential for regeneration
... in half, and two new worms grow. Their ability to regenerate is so prolific that a tissue fragment only 1/279th of the worm's length can grow into a new planarian. Researchers know that planarian stem cells, called neoblasts, play a central role in both regeneration and homeostasis. But how they do that has re...Stem cells and regeneration: Opening up a new can of worms
...cientific world for their extraordinary ability to regenerate body parts after injury. Even a small piece cut off a planarian can reorganize and regenerate to form a whole new worm. Now, scientists have completed the first systematic investigation of gene ...Cerebral navigation: How do nerve fibers know what direction to grow in?
...ntervention could possibly enable damaged axons to regenerate (normally impossible in a mature nervous system) and ultimately restore nerve function. It's been known that cells synthesize an inhibitory protein called ephrin, which binds to a receptor called Eph on the axon's growth cone. But how this triggers t...Master gene controls healing of 'skin' in fruit flies and mammals
...le of a fly embryo. These wound repair genes then regenerate the injured patch of cuticle. In a separate study published in the same issue of Science , a team of researchers led by Stephen Jane at the Royal Melbourne Hospital in Melbourne, Australia report that, although insect cuticle and the outer layer o...Researchers peer inside embryonic/fetal hearts to discover causes of congenital heart disease
...t muscle cells from the chick and mouse embryos to regenerate "tissue-engineered" heart tissues in order to understand how the mechanical environment triggers heart muscle cells to mature and divide. It is all part of learning more about the heart as a dynamic, moving element during development, when dividing c...NJIT Presidential Award winner takes stem cell research another step
...bination with allografts donated bone tissue - to regenerate and repair the patients' damaged bones. She is per...cted into a diseased area of the human body, could regenerate damaged tissue. Her research has also led to two major stem-cell discoveries: One showing that stem...New Georgia Tech micro-CT imaging technique to help tissue engineers improve bone regeneration
...ia Tech research points to better ways to heal and regenerate bones using microcomputed tomography (micro-CT) imaging — a process 1 million times more detailed than a traditional CT scan. The new micro-CT scan technique simultaneously looks at both vascularization (the process by which blood vessels invade......ults from the limited ability of the myocardium to regenerate and self-repair. Douglas Losordo and colleagues from Tufts University now document the existence of a previously unrecognized subset of human bone marrowderived stem cells with therapeutic potency for myocardial tissue regeneration following myocard......ults from the limited ability of the myocardium to regenerate and self-repair. Douglas Losordo and colleagues from Tufts University now document the existence of a previously unrecognized subset of human bone marrowderived stem cells with therapeutic potency for myocardial tissue regeneration following myocard...