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New insights into brain cell metabolism from PET and MRI scans

By discovering a crucial piece of submicroscopic information about how the brain converts fuel into energy for neurons, Cornell University biophysicists have gleaned new insights into brain cell metabolism that will allow neurologists to better interpret data from such diagnostic tests as positron emission tomography (PET) scans and a specialized magnetic resonance imaging (MRI) test.

12 Jul 2005

Possible cure for Huntington's disease

Boosting levels of two critical proteins that normally shut down during Huntington's disease, researchers at the University of Wisconsin-Madison and the Cold Spring Harbor Laboratory have cured fruit flies of the genetic, neurodegenerative condition.

12 Jul 2005

Overactive dopamine receptors may help explain anorexia nervosa symptoms

Just why those with anorexia nervosa are driven to be excessively thin and seem unaware of the seriousness of their condition could be due to over-activity of a chemical system found in a region deep inside the brain, a University of Pittsburgh study suggests.

11 Jul 2005

Researchers find molecule ephrin-B3 inhibits regrowth of spinal nerve cells

A molecule that helps the body's motor nerve cells grow along proper paths during embryonic development also plays a major role in inhibiting spinal-cord neurons from regenerating after injury, researchers at UT Southwestern Medical Center have found.

11 Jul 2005

Dopamine agonist therapy for Parkinson's disease may lead to problem gambling

Eleven patients with Parkinson's disease (PD) developed pathological gambling behavior following dopamine agonist therapy, a drug therapy to control movement problems caused by Parkinson's disease, according to a study posted online which will appear in the September print issue of Archives of Neurology.

11 Jul 2005

New roles for granulocyte colony-stimulating factor (G-CSF) in treating stroke

In a study appearing online on July 7 in advance of print publication of the August 1 issue of the Journal of Clinical Investigation, Armin Schneider and colleagues from Axaron Biosciences describe new roles for granulocyte colony-stimulating factor (G-CSF) in treating stroke and other central nervous system roles of this protein.

11 Jul 2005

Researchers have discovered a key regulatory molecule for Huntington's disease

Researchers have discovered a key regulatory molecule whose overactivation by the abnormal protein produced in Huntington's disease (HD) causes the central pathologies of the disease.

6 Jul 2005

Mammalian brain is far more plastic than previously thought and thus may be able to recover from serious brain injuries

Infants born prematurely and with hypoxia - inadequate oxygen to the blood - are able to recover some cells, volume and weight in the brain after oxygen supply is restored, Yale School of Medicine researchers report in Experimental Neurology.

28 Jun 2005

Researchers successfully treat laboratory model of a lysosomal storage disease called GM1

Physicians might one day be able to treat a disease that destroys brain cells in children using genetically modified cells to transport a "drug" to the site of the dying neural cells (cells that transmit impulses).

27 Jun 2005

Light used to regulate protein synthesis

Proteins are the puzzle-pieces of life, involved in how organisms grow and flourish, but studying their complex biological processes in living systems has been extremely difficult.

27 Jun 2005

New clue to the causes of neurodegenerative diseases

Scientists funded by the Medical Research Council (MRC), the Wellcome Trust, BBSRC - the Biotechnology and Biological Sciences Research Council and the EU have made an important discovery about the mechanisms underlying degenerative brain diseases.

26 Jun 2005

Foxp2 gene plays an essential role in the development of social communication

The association between Foxp2 and language was first identified in a family in which half the members had severe speech and grammar impairments. Studies showed that all the affected family members had a mutation in the Foxp2 gene.

21 Jun 2005

Researchers demonstrate direct transfer of terminally differentiated cell nuclei

With the advent of nuclear-transfer cloning, it is now possible to produce mice from the nuclei of differentiated cells, such as peripheral blood lymphocytes and olfactory sensory neurons.

20 Jun 2005

Fragile-X-syndrome research

The fragile-X-syndrome is the most common hereditary form of mental retardation and occurs much more often in boys than in girls.

20 Jun 2005

Arterial spin labeling distinguishes between Alzheimer's disease and frontotemporal dementia

A non-invasive magnetic resonance imaging (MRI) technique called arterial spin labeling is just as accurate as invasive scanning techniques in distinguishing Alzheimer's disease from frontotemporal dementia (FTD) in the brains of elderly people, according to a new study at the San Francisco VA Medical Center (SFVAMC).

19 Jun 2005

Columbia University launches multi-year campaign to support stem cell researc

Columbia University Medical Center (CUMC) has announced that it is halfway toward realizing the first phase of a multi-year campaign to build upon the university’s groundbreaking stem cell research and lead the effort to fully realize the therapeutic potential of stem cells.

16 Jun 2005

First demonstration of a vaccine for Parkinson's

Researchers at the University of California, San Diego (UCSD) School of Medicine working with scientists at Elan Pharmaceuticals, have reported promising results in mice of a vaccine approach to treating Parkinson’s and similar diseases. These results appear in the June edition of the journal Neuron.

15 Jun 2005

Placebos can affect emotion as well relieving pain

Just as placebos have been shown to bring relief from pain, researchers have now found that they can affect emotion, alleviating the impact of unpleasant experiences.

15 Jun 2005

Jumping genes help detemine uniqueness of individual brains

Scientists at the Salk Institute for Biological Studies may have found one explanation for the puzzling variety in brain organization and function: mobile elements, pieces of DNA that can jump from one place in the genome to another, randomly changing the genetic information in single brain cells.

15 Jun 2005

Nicotine triggers the same neural pathways that give opiates their addictively rewarding properties

In experiments with mice, researchers have found that nicotine triggers the same neural pathways that give opiates such as heroin their addictively rewarding properties--including associating an environment with the drug's reward.

15 Jun 2005