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Short-term stress can affect learning and memory
Short-term stress lasting as little as a few hours can impair brain-cell communication in areas associated with learning and memory, University of California, Irvine researchers have found.   view more (2008-03-12)

Paradigm shift: Switch for programmed cell death promotes spread of glioblastoma
Malignant tumors have usually lost their ability to destroy themselves by programmed cell death, or apoptosis. Therefore, tumors are often resistant to chemotherapy or radiation therapy, whose effect is based on forcing tumor cells to commit suicide.   view more (2008-03-12)

Post brain injury: New nerve cells originate from neural stem cells
Most cells in the human brain are not nerve cells, but supporting cells (glial cells). They serve as a framework for nerve cells and play an important role in the wound reaction that occurs with injuries to the brain.   view more (2008-03-12)

On a 'roll': MIT researchers devise new cell-sorting system
Capitalizing on a cell's ability to roll along a surface, MIT researchers have developed a simple, inexpensive system to sort different kinds of cells - a process that could result in low-cost tools to test for diseases such as cancer, even in remote locations.   view more (2008-03-10)

Gladstone scientists identify role of tiny RNAs in controlling stem cell fate
Researchers at the Gladstone Institute of Cardiovascular Disease (GICD) and the University of California, San Francisco have identified for the first time how tiny genetic factors called microRNAs may influence the differentiation of pluripotent embryonic stem (ES) cells into cardiac muscle.   view more (2008-03-06)

UCLA researchers find blood stem cells originate and are nurtured in the placenta
Solving a long-standing biological mystery, UCLA stem cell researchers have discovered that blood stem cells, the cells that later differentiate into all the cells in the blood supply, originate and are nurtured in the placenta.   view more (2008-03-06)

Leicester scientists seek to disarm TB's 'molecular weapon'
Scientists at the University of Leicester are claiming a new advance in their fight against the resurgence of TB in Britain.   view more (2008-03-06)

Iowa State University researcher identifies eye disease in canines
Sinisa Grozdanic, assistant professor of veterinary medicine at Iowa State University, has identified and named an eye disease not previously known. The disease, Immune-Mediated Retinopathy, or IMR, causes loss of function in retinal cells and, in some cases, blindness in canines.   view more (2008-03-05)

New target for cancer therapy may improve treatment for solid tumors
Targeting and killing the non-malignant cells that surround and support a cancer can stop tumor growth in mice, reports a research team based at the University of Chicago Medical Center in the March 1, 2008, issue of the journal Cancer Research. The discovery offers a new approach to treating... view more (2008-03-04)

USC researchers discover novel way to develop tumor vaccines
Researchers at the University of Southern California (USC) have uncovered a new way to develop more effective tumor vaccines by turning off the suppression function of regulatory T cells.   view more (2008-03-03)

Short RNA strand helps exposed skin cells protect body from bacteria, dehydration and even cancer
Every minute, 30,000 of our outermost skin cells die so that we can live. When they do, new cells migrate from the inner layer of the skin to the surface of it, where they form a tough protective barrier.   view more (2008-03-03)

Scripps scientists studying sepsis in mice find potential drug targets for deadly disease
"We have identified a key connection of signaling pathways in the cascade of events leading to sepsis. This defines a crucial point where the immune system spirals out of control to cause severe sepsis and where there is an opportunity for therapeutic intervention," says Scripps Research... view more (2008-02-28)

Scripps research scientists devise approach that stops HIV at earliest stage of infection
Researchers at The Scripps Research Institute have developed a new two-punch strategy against HIV and they have already successfully tested aspects of it in the laboratory.   view more (2008-02-28)

UT Knoxville research may lead to better flu vaccine
New research from a scientist at the University of Tennessee, Knoxville, has uncovered information that may someday lead to a better flu vaccine.   view more (2008-02-28)

Scientists discover how cigarette smoke causes cancer: Study points to new treatments, safer tobacco
Everyone has known for decades that that smoking can kill, but until now no one really understood how cigarette smoke causes healthy lung cells to become cancerous.   view more (2008-02-28)

Adult stem cells may be beneficial for certain cardiovascular disorders and autoimmune diseases
A review of previously published research suggests that stem cells harvested from an adult's blood or marrow may provide treatment benefit to select patients for some autoimmune diseases and cardiovascular disorders.   view more (2008-02-27)

Tumor-killing virus selectively targets diseased brain cells
New findings show that a specialized virus with the ability to reproduce its tumor-killing genes can selectively target tumors in the brains of mice and eliminate them.   view more (2008-02-20)

Building brains: Mammalian-like neurogenesis in fruit flies
A new way of generating brain cells has been uncovered in Drosophila. The findings, published this week in the online open access journal Neural Development, reveal that this novel mode of neurogenesis is very similar to that seen in mammalian brains, suggesting that key aspects of neural... view more (2008-02-19)

Scientists move towards stem cell therapy trials to mend shattered bones
The UK Stem Cell Foundation, the Medical Research Council and Scottish Enterprise, in partnership with the Chief Scientist's Office, are funding a £1.4 million project to further the research at the University of Edinburgh with a view to setting up a clinical trial within two years.   view more (2008-02-19)

Protein maintains cross talk between cells that control hair growth
Genes, it turns out, are only as active as the signals that turn them on and off. Now scientists from Rockefeller University and the Howard Hughes Institute have identified the signaling molecule that ratchets up and clamps down the activity of key genes in dermal papilla, a type of skin cell whose... view more (2008-02-15)

How DDT metabolite disrupts breast cancer cells
Research has shown that the main metabolite of the insecticide DDT could be associated with aggressive breast cancer tumours, but there has been no explanation for this observation to date. Now a report published in the open access journal Breast Cancer Research shows how DDT could act to disrupt... view more (2008-02-14)

A functional immune system can be derived from embryonic stem cells, preliminary study finds
A new study demonstrates for the first time that embryonic stem cells can be used to create functional immune system blood cells, a finding which is an important step in the utilization of embryonic stem cells as an alternative source of cells for bone marrow transplantation.   view more (2008-02-13)

'Lab on a chip' mimics brain chemistry
Johns Hopkins researchers from the Whiting School of Engineering and the School of Medicine have devised a micro-scale tool - a lab on a chip - designed to mimic the chemical complexities of the brain. The system should help scientists better understand how nerve cells in the brain work together to... view more (2008-02-13)

Gene therapy protocol at UCSD activates immune system in patients with leukemia
A research team at the Moores Cancer Center at University of California, San Diego (UCSD) reports that patients with chronic lymphocytic leukemia (CLL) who were treated with a gene therapy protocol began making antibodies that reacted against their own leukemia cells.   view more (2008-02-12)

How red blood cells nuke their nuclei
Unlike the rest of the cells in your body, your red blood cells lack nuclei. That quirk dates back to the time when mammals began to evolve. Other vertebrates such as fish, reptiles, and birds, have red cells that contain nuclei that are inactive. Losing the nucleus enables the red blood cell to... view more (2008-02-11)
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