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Dictyostelium cells shown to lay 'breadcrumb trail' as first step in multicellular formation
When starved of their food source and then presented with a chemoattractant signal like cAMP, individual Dictyostelium cells acquire a polarized morphology and aggregate to form a migrating stream.   view more (2008-12-01)

Children's Hospital scientists achieve repair of injured heart muscle in lab tests of stem cells
Researchers at Children's Hospital of Pittsburgh of UPMC have been able to effectively repair damaged heart muscle in an animal model using a novel population of stem cells they discovered that is derived from human skeletal muscle tissue.   view more (2008-11-26)

Tiny protein provokes healthy bonding between cells
In human relationships, a certain "spark" often governs whether we prefer one person to another, and critical first impressions can occur within seconds. A team lead by Johns Hopkins researchers has found that cell-to-cell "friendships" operate in much the same way and that... view more (2008-11-26)

Synthetic virus supports a bat origin for SARS
SARS - severe acute respiratory syndrome - alarmed the world five years ago as the first global pandemic of the 21st century. The coronavirus (SARS-CoV) that sickened more than 8,000 people - and killed nearly 800 of them - may have originated in bats, but the actual animal source is not known.   view more (2008-11-26)

Old flies can become young moms
Female flies can turn back the biological clock and extend their lifespan at the same time, University of Southern California biologists report.   view more (2008-11-25)

Scientists show gene mutation may cause immature lungs in newborns
Scientists have identified a gene critical to lung maturation in newborns and the production of surfactant, which lines lung tissues and prevents the lungs from collapsing.   view more (2008-11-25)

Mammals can be stimulated to regrow damaged inner retina nerve cells
Researchers at the University of Washington (UW) have reported for the first time that mammals can be stimulated to regrow inner nerve cells in their damaged retinas. Located in the back of the eye, the retina's role in vision is to convert light into nerve impulses to the brain.   view more (2008-11-25)

Pure insulin-producing cells produced in mouse
Singapore researchers have developed an unlimited number of pure insulin-producing cells from mouse embryonic stem cells (ESCs).   view more (2008-11-21)

Researcher tricks immune system in diabetic mice
The body's immune system hates strangers. When its security patrol spots a foreign cell, it annihilates it.   view more (2008-11-21)

Memory mission explores new territory in neuroscience
Astrophysicists peer into the far corners of deep space for dark matter, but for neuroscientists at the Queensland Brain Institute (QBI) exploring the unknown is much closer to home.   view more (2008-11-21)

Stopping germs from ganging up on humans
Keeping germs from cooperating can delay the evolution of drug resistance more effectively than killing germs one by one with traditional drugs such as antibiotics, according to new research from The University of Arizona in Tucson.   view more (2008-11-20)

Bad cholesterol inhibits the breakdown of peripheral fat
he so called bad cholesterol (LDL) inhibits the breakdown of fat in cells of peripheral deposits, according to a study from the Swedish medical university Karolinska Institutet. The discovery reveals a novel function of LDL as a regulator of fat turnover besides its well-established detrimental... view more (2008-11-20)

Adult stem cell breakthrough
The first tissue-engineered trachea (windpipe), utilising the patient's own stem cells, has been successfully transplanted into a young woman with a failing airway. The bioengineered trachea immediately provided the patient with a normally functioning airway, thereby saving her life.   view more (2008-11-19)

First trachea transplant without immunosuppression
After 4 years of going from consultation to consultation, Claudia Castillo finally found a solution to her respiratory problems. The young Colombian woman suffered from a cough that took a long time to be diagnosed as tuberculosis.   view more (2008-11-19)

First Trial in the U.S. to Treat Both Ischemic & Non-Ischemic Heart Failure to be Performed by U of U Researchers Using Patient's Own Stem Cells
Researchers at the University of Utah are enrolling people in a new clinical trial that uses a patient's own stem cells to treat ischemic and non-ischemic heart failure.   view more (2008-11-18)

UNC researchers find clue to stopping breast-cancer metastasis
If scientists knew exactly what a breast cancer cell needs to spread, then they could stop the most deadly part of the disease: metastasis. New research from the University of North Carolina at Chapel Hill School of Medicine takes a step in that direction.   view more (2008-11-18)

Exercise increases brain growth factor and receptors, prevents stem cell drop in middle age
A new study confirms that exercise can reverse the age-related decline in the production of neural stem cells in the hippocampus of the mouse brain, and suggests that this happens because exercise restores a brain chemical which promotes the production and maturation of new stem cells.   view more (2008-11-18)

Stem Cells from Monkey Teeth Can Stimulate Growth and Generation of Brain Cells
Researchers at the Yerkes National Primate Research Center, Emory University, have discovered dental pulp stem cells can stimulate growth and generation of several types of neural cells. Findings from this study, available in the October issue of the journal Stem Cells, suggest dental pulp stem... view more (2008-11-12)

Engineered killer T cell recognizes HIV-1's lethal molecular disguises
Researchers at the University of Pennsylvania School of Medicine and colleagues in the United Kingdom have engineered T cells able to recognize HIV-1 strains that have evaded the immune system.   view more (2008-11-10)

Protein identified that turns off HIV-fighting T cells
In HIV-infected patients the body's immune system is unable to fight off the virus. A new study to be published online on November 10th in the Journal of Experimental Medicine shows that T cells in HIV-infected individuals express a protein called TIM-3, which inactivates their virus killing... view more (2008-11-10)

New study shows that important gene controls the ability of the thymus to produce disease-fighting T-cells after an organism's birth
New research, just published by researchers from the University of Georgia, provides the first evidence that a key gene may be crucial to maintaining the production of the thymus and its disease-fighting T-cells after an animal's birth.   view more (2008-11-07)

MIT creates tiny backpacks for cells
MIT engineers have outfitted cells with tiny "backpacks" that could allow them to deliver chemotherapy agents, diagnose tumors or become building blocks for tissue engineering.   view more (2008-11-06)

Penn Scientists Show How Body Determines Optimal Amount of Germ-Fighting B Cells
Researchers at the University of Pennsylvania School of Medicine can now explain how the body determines whether there are enough mature B-cells in the blood stream at any one time. These are the cells that produce antibodies against germs to fight infections.   view more (2008-11-05)

Previously unknown immune cell may help those with Crohn's and colitis
The tonsils and lymphoid tissues in the intestinal tract that help protect the body from external pathogens are the home base of a rare immune cell newly identified by researchers at Washington University School of Medicine in St. Louis.   view more (2008-11-04)

What's the influence of laxative agents on mucosal barrier repair?
The prostone lubiprostone has been shown to stimulate chloride secretion via one of the minor intestinal epithelial channels, ClC-2. This results in sustained low-level secretion of water into the lumen.   view more (2008-11-03)
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