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Traumatic memories can be wiped out

French CNRS scientists in collaboration have shown that a memory of a traumatic event can be wiped out, although other, associated recollections remain intact.

2 Apr 2007

Scientists create small molecules to probe proteins deep inside cell membrane

Proteins, which form much of the molecular machinery required for life, are the targets of most drug molecules.

2 Apr 2007

Effect of gender on the development of UVB-induced skin cancers

Inherent gender differences "instead of more sun exposure" may be one reason why men are three times more likely than women to develop certain kinds of skin cancer, say researchers at Ohio State University Medical Center.

2 Apr 2007

Single-walled carbon nanotubes may pose health risks

DNA-wrapped single-walled carbon nanotubes (SWCNTs) shorter than about 200 nanometers readily enter into human lung cells and so may pose an increased risk to health, according to scientists at the National Institute of Standards and Technology (NIST).

2 Apr 2007

Iron nanoparticles exhibit toxic effects on neuronal cells

Researchers at UC San Diego have discovered that iron-containing nanoparticles being tested for use in several biomedical applications can be toxic to nerve cells and interfere with the formation of their signal-transmitting extensions.

1 Apr 2007

Next generation drugs designed from 3D protein models

The next generation of drugs will be designed on the basis of 3D protein models that scientists are creating. The Structural Genomics Consortium laboratory at Swedish medical university Karolinska Institutet has now made available the structure of PARP3, the four hundredth structure in this unique project to chart the body's proteins.

1 Apr 2007

Penn State scientists reveal structure of gateways to gene control

Scientists at Penn State University will reveal in the 29 March 2007 issue of the journal Nature the first complete high-resolution map of important structures that control how genes are packaged and regulated throughout an entire genome.

31 Mar 2007

Natural mechanism for immune suppression may lead to new cancer drugs

A natural mechanism pirated by tumors and HIV to evade the immune response is opening the door to better treatment for these conditions, researchers say.

31 Mar 2007

New cardiovascular treatment approaches

In an era of increasing death and illness from heart and blood vessel disease - which also can impair kidney function - Mayo Clinic researchers have designed two promising new cardiovascular treatment approaches.

30 Mar 2007

Bioengineering heart parts

Some day, heart attack survivors might have a patch of laboratory-grown muscle placed in their heart, to replace areas that died during their attack.

30 Mar 2007

Glimpse into early brain development shows how nerve cells move into position

Tucked into the lower, rear portion of the brain, the cerebellum plays key roles in motor learning, motor memory and sensory perception. It's also where the majority of metastatic childhood brain tumors are located. Yet scientists still know very little about its early growth.

29 Mar 2007

Multiple malaria infection inhibits spread of parasite

People who are frequently infected with malaria parasites can develop immunity against the gametocyte, the infectious stage. This immunity inhibits the spread of the parasite. Dutch researcher Mike van der Kolk discovered this during his research into malaria transmission under the inhabitants of Cameroon, Senegal and Indonesia.

28 Mar 2007

DNA repair runs by the biological clock

No sooner have the clocks gone forward than scientists have shed new light on the link between our biological clocks and DNA damage repair processes, essential in protecting our cells from cancer.

27 Mar 2007

Immune response to cancer stem cells may dictate cancer's course

Although stem cells hold incredible promise in the fight against certain diseases, in cancer they're anything but helpful. In fact, mounting evidence is showing that a tumor's growth and spread may depend on 'cancer stem cells,' which comprise only a very small subset of the tumor.

27 Mar 2007

Campaign to help schools prevent chemical accidents

In a national kickoff, the U.S. Environmental Protection Agency announced its Schools Chemical Cleanout Campaign to help schools prevent chemical accidents.

25 Mar 2007

Study describes how estradiol helps to maintain bone density

Researchers at the University at Buffalo have described a novel pathway by which estradiol, the primary estrogen in humans, aids in maintaining bone density, a function critical to avoiding osteoporosis.

25 Mar 2007

Researchers look at whether creatine slows progression of Parkinson's disease

Researchers at the University of Rochester Medical Center are leading one of the largest clinical trials ever for Parkinson's disease.

25 Mar 2007

Viral protein is an effective preventative against infection

For parents, eight million cases of acute middle-ear infections every year adds up to a lot of sleepless nights and trips to the pediatrician.

25 Mar 2007

Global tuberculosis epidemic has levelled off

The global tuberculosis (TB) epidemic has levelled off for the first time since WHO declared TB a public health emergency in 1993. The Global Tuberculosis Control Report released today by WHO finds that the percentage of the world's population struck by TB peaked in 2004 and then held steady in 2005.

22 Mar 2007

AACR's Sixth Annual Landon Awards recognize Richard Kolodner, Douglas Lowy and John Schiller

Scientists whose discoveries have led to fundamental advances in the science and treatment of cancer are the recipients of two prestigious international prizes offered by the Kirk A. and Dorothy P. Landon Foundation and the American Association for Cancer Research.

22 Mar 2007