http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. There is no known cure for neurodegenerative diseases such as Huntington's, Alzheimer's and Parkinson's. But new hope, in the form of stem cells created from the patient's own bone marrow, can be found ― and literally seen ― in laboratories at Tel Aviv University. http://www.physorg.com/news169915086.html Biology Wed, 19 Aug 2009 17:00:01 EST news169915086 (PhysOrg.com) -- In an advance that could help transform embryonic stem cells into a multipurpose medical tool, scientists at the University of Wisconsin-Madison have transformed these versatile cells into progenitors of white blood cells and into six types of mature white blood and immune cells. http://www.physorg.com/news169151069.html Medicine & Health Mon, 10 Aug 2009 20:00:02 EST news169151069 University of Michigan researchers have developed an animal model that provides strong evidence why imatinib, marketed as Gleevec, helps patients with chronic myeloid leukemia survive longer, but does not keep the disease from returning if treatment ends. http://www.physorg.com/news168690787.html Medicine & Health Wed, 05 Aug 2009 11:50:01 EST news168690787 A new study published in the August issue of The Journal of Nuclear Medicine shows that positron emission tomography (PET) is an important tool for depicting the extent of neuroblastoma in some patients, particularly for those in the early stages of the disease. Neuroblastoma accounts for six to ten percent of all childhood cancers in the United States and 15 percent of cancer deaths in children. Accurately identifying where in the body the disease is located and whether it is spreading is critical for choosing appropriate types of treatment, which can include surgery, chemotherapy, radiation and -in the most advanced cases -a combination of all of these treatments along with bone marrow transplant or investigational therapies. http://www.physorg.com/news168506503.html Medicine & Health Mon, 03 Aug 2009 09:10:02 EST news168506503 University of Florida researchers were able to program bone marrow stem cells to repair damaged retinas in mice, suggesting a potential treatment for one of the most common causes of vision loss in older people. http://www.physorg.com/news168257942.html Medicine & Health Fri, 31 Jul 2009 11:23:05 EST news168257942 (PhysOrg.com) -- Scientists are closer to understanding how to grow replacement bones with stem cell technology, thanks to research published today in the journal Nature Materials. http://www.physorg.com/news167835469.html Chemistry Sun, 26 Jul 2009 13:58:36 EST news167835469 Endothelial progenitor cells may play a role in the start and progression of metastatic disease in children with cancer, according to study results published in Clinical Cancer Research, a journal of the American Association for Cancer Research. http://www.physorg.com/news166877932.html Medicine & Health Wed, 15 Jul 2009 12:20:02 EST news166877932 Patients who survive an initial diagnosis of breast cancer often succumb to the disease years later when the cancer shows up in a different part of the body. Now, scientists have identified key signals that support the long term survival of breast cancer cells after they have spread to the bone marrow. The research, published by Cell Press in the July issue of the journal Cancer Cell, may lead to development of treatment strategies that decrease the likelihood of breast cancer recurrence in the bone and other organs. http://www.physorg.com/news166104644.html Medicine & Health Mon, 06 Jul 2009 13:11:20 EST news166104644 A human growth factor that stimulates blood stem cells to proliferate in the bone marrow reverses memory impairment in mice genetically altered to develop Alzheimer's disease, researchers at the University of South Florida and James A. Haley Hospital found. The granulocyte-colony stimulating factor (GCSF) significantly reduced levels of the brain-clogging protein beta amyloid deposited in excess in the brains of the Alzheimer's mice, increased the production of new neurons and promoted nerve cell connections. http://www.physorg.com/news165684042.html Medicine & Health Wed, 01 Jul 2009 16:21:17 EST news165684042 The frontiers of cell transplantation for cardiac repair are discussed in the current issue of Cell Transplantation (Vol. 18 No.3), now available on-line. http://www.physorg.com/news165670566.html Medicine & Health Wed, 01 Jul 2009 13:40:02 EST news165670566 A UCSF study for the treatment of heart failure after heart attack found that the extract derived from bone marrow cells is as effective as therapy using bone marrow stem cells for improving cardiac function, decreasing the formation of scar tissue and improving cardiac pumping capacity after heart attack. http://www.physorg.com/news165512730.html Medicine & Health Mon, 29 Jun 2009 17:00:01 EST news165512730 When Jennifer Garcia scheduled the birth of her daughter at South Miami Hospital, nurses asked her an unusual question: "After your baby is born, are you willing to donate the umbilical cord to save someone's life?" http://www.physorg.com/news163334467.html Medicine & Health Thu, 04 Jun 2009 11:41:38 EST news163334467 Scientists have managed to induce cells from pigs to transform into pluripotent stem cells - cells that, like embryonic stem cells, are capable of developing into any type of cell in the body. It is the first time in the world that this has been achieved using somatic cells (cells that are not sperm or egg cells) from any animal with hooves (known as ungulates). http://www.physorg.com/news163190851.html Biology Tue, 02 Jun 2009 19:48:00 EST news163190851 A study led by researchers at the Salk Institute for Biological Studies, has catapulted the field of regenerative medicine significantly forward, proving in principle that a human genetic disease can be cured using a combination of gene therapy and induced pluripotent stem (iPS) cell technology. The study, published in the May 31, 2009 early online edition of Nature, is a major milestone on the path from the laboratory to the clinic. http://www.physorg.com/news162995465.html Medicine & Health Sun, 31 May 2009 13:31:33 EST news162995465 (AP) -- If Nick Glasgow were white, he would have a nearly 90 percent chance of finding a matching bone marrow donor who could cure his leukemia. http://www.physorg.com/news162659550.html Medicine & Health Wed, 27 May 2009 16:13:27 EST news162659550 Breast cancer patients who received chemotherapy prior to surgery had heightened levels of cancer-initiating stem cells in their bone marrow, and the level of such cells correlated to a tumor's lymph node involvement, according to research from The University of Texas M. D. Anderson Cancer Center. http://www.physorg.com/news161609613.html Medicine & Health Fri, 15 May 2009 12:34:17 EST news161609613 A main reason why viruses such as HIV or hepatitis C persist despite a vigorous initial immune response is exhaustion. The T cells, or white blood cells, fighting a chronic infection eventually wear out. http://www.physorg.com/news161454772.html Medicine & Health Wed, 13 May 2009 17:33:37 EST news161454772 Transplanted embryonic stem cells are recognized as a potential treatment for patients suffering from the effects of spinal cord injury (SCI). However, in studies using embryonic stem cells transplanted into SCI laboratory animals, a serious drawback has been the development of tumors following transplantation. http://www.physorg.com/news161267482.html Medicine & Health Mon, 11 May 2009 13:31:51 EST news161267482 The latest electronic edition of the journal Nature Genetics reports the discovery of a new gene responsible for congenital sideroblastic anemia, a rare disease, mainly characterized by the presence of ringed sideroblasts in the patients' bone marrow. http://www.physorg.com/news161026863.html Medicine & Health Fri, 08 May 2009 18:41:27 EST news161026863 A team from the Institute for Research in Immunology and Cancer (IRIC) at Université de Montréal has succeeded in producing a large quantity of laboratory stem cells from a small number of blood stem cells obtained from bone marrow. The multidisciplinary team, directed by Dr. Guy Sauvageau, thus took a giant step towards the development of a revolutionary treatment based on these stem cells. This worldwide first will advance stem cell research and could have major implications in several fields for which no treatment currently exists. http://www.physorg.com/news159106081.html Medicine & Health Thu, 16 Apr 2009 13:08:13 EST news159106081 Great interest has been aroused in the identification and isolation of liver stem cells from bone marrow cells. Several subsets of bone marrow cells have been found to have the potential to differentiate into hepatocytes, however, sorting based on immunological methods is difficult because of the complicated surface markers of the stem cells; furthermore, no report of successful passage has been published. http://www.physorg.com/news159028051.html Medicine & Health Wed, 15 Apr 2009 15:28:06 EST news159028051 Researchers have identified a gene that controls the rapid production and differentiation of the stem cells that produce all blood cell types -- a discovery that could eventually open the door to more streamlined treatments for leukemia and other blood cancers, in which blood cells proliferate out of control. http://www.physorg.com/news158418900.html Medicine & Health Wed, 08 Apr 2009 14:15:18 EST news158418900 Research led by David Hess of the Robarts Research Institute at The University of Western Ontario has identified how to use selected stem cells from bone marrow to grow new blood vessels to treat diseases such as peripheral artery disease. It's one of the severe complications often faced by people who've had diabetes for a long time. Reduced blood flow (ischemia) in their limbs can lead to resting pain, trouble with wound healing and in severe cases, amputation. The research is published in Blood. http://www.physorg.com/news158234465.html Medicine & Health Mon, 06 Apr 2009 11:01:27 EST news158234465 A new study finds previously unidentified fibrocartilage-forming progenitor cells in degenerating, diseased human cartilage, but not in cartilage from healthy joints. The research, published by Cell Press in the April 3rd issue of the journal Cell Stem Cell, provides valuable insights into the reparative potential of cartilage and may lead to development of regenerative therapies for arthritis. http://www.physorg.com/news157896636.html Biology Thu, 02 Apr 2009 13:14:16 EST news157896636 A quicker, cheaper and more accurate test for deadly Aspergillus fumigatus fungal infections in patients with damaged or suppressed immune systems was described today, (Thursday 2 April) at the Society for General Microbiology meeting in Harrogate, by Dr Christopher Thornton from the University of Exeter, UK. http://www.physorg.com/news157869734.html Biology Thu, 02 Apr 2009 05:42:46 EST news157869734 Researchers at the Keck School of Medicine of the University of Southern California (USC) have identified a signaling pathway that helps regulate the movement of blood-forming stem cells in the body -a finding that provides important new insight into how stem cells move around the body and which may lead to improvements in the efficiency of bone marrow transplants. http://www.physorg.com/news157211633.html Medicine & Health Wed, 25 Mar 2009 14:54:27 EST news157211633 Researchers at the National Institutes of Health have deciphered a key sequence of events governing whether the stem cells that produce red and white blood cells remain anchored to the bone marrow, or migrate into the circulatory system. http://www.physorg.com/news157201946.html Biology Wed, 25 Mar 2009 12:13:03 EST news157201946 (PhysOrg.com) -- Dendritic cells were discovered more than 30 years ago, but their pedigree has never been fully charted. They were known to be key immune system cells born in bone marrow, but their adolescence remained a mystery, their path to infection-fighting adulthood confused. Now, in experiments published in Science, researchers at The Rockefeller University have identified these special cells` rites of passage: They have shown the developmental point when dendritic cells part ways with closely related immune cells known as monocytes, at least in mice. The findings could have important implications for research on dendritic cell-based vaccines all over the world. http://www.physorg.com/news156708357.html Medicine & Health Thu, 19 Mar 2009 19:06:36 EST news156708357 An experimental procedure that dramatically strengthens stem cells' ability to regenerate damaged tissue could offer new hope to sufferers of muscle-wasting diseases such as myopathy and muscular dystrophy, according to researchers from the University of New South Wales (UNSW). http://www.physorg.com/news155472213.html Medicine & Health Thu, 05 Mar 2009 10:43:55 EST news155472213 By now, most people have read stories about how to "grow your own organs" using stem cells is just a breakthrough away. Despite the hype, this breakthrough has been elusive. A new report published in the March 2009 issue of The FASEB Journal brings bioengineered organs a step closer, as scientists from Stanford and New York University Langone Medical Center describe how they were able to use a "scaffolding" material extracted from the groin area of mice on which stem cells from blood, fat, and bone marrow grew. This advance clears two major hurdles to bioengineered replacement organs, namely a matrix on which stem cells can form a 3-dimensional organ and transplant rejection. http://www.physorg.com/news154869287.html Biology Thu, 26 Feb 2009 11:15:10 EST news154869287