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A new brain imaging study identifies 'brain signature' for cigarette cravings

A new brain imaging study by researchers in the Abramson Cancer Center of the University of Pennsylvania shows that cigarette cravings in smokers who are deprived of nicotine are linked with increased activation in specific regions of the brain.

20 Dec 2007

Brains respond differently to thirst depending upon age

Twelve healthy subjects in their 60s and 70s showed a different pattern of brain activations during thirst and satiation than did 10 healthy subjects in their 20s who drank the same amounts and underwent imaging with positron-emission tomography (PET).

20 Dec 2007

Thyroid cancer drug given expanded approval by FDA

The U.S. Food and Drug Administration (FDA) has given expanded approval for a drug used to treat thyroid cancer.

19 Dec 2007

Addition of antibiotics to MS therapy could slow down progression of the disease

Researchers from Louisiana State University in the U.S. are suggesting that the addition of antibiotics to standard drug therapy for multiple sclerosis, may slow down the progress of the disease.

19 Dec 2007

How doctors deal with the risk embedded in the medical system

Risk is an inherent element of the hospital system and the resulting dangers are often normalised by medical staff to allow them to do their job, according to research by a University of Nottingham academic.

18 Dec 2007

Biological physics creates diagnostics of the future

Chalmers University of technology in Sweden is about to enter a new field of research - biological physics.

18 Dec 2007

Brain malfunction explains dehydration in elderly

As Australia faces another hot, dry summer, scientists from Melbourne's Howard Florey Institute have warned that elderly people are at risk of becoming dehydrated because their brains underestimate how much water they need to drink to rehydrate.

17 Dec 2007

How molecular muscles help cells divide

Time-lapse videos and computer simulations provide the first concrete molecular explanation of how a cell flexes tiny muscle-like structures to pinch itself into two daughter cells at the end of each cell division, according to a report in Science Express.

17 Dec 2007

Researchers report protein interactions of MAP kinase signaling pathway

The Stowers Institute's Rong Li Lab, in collaboration with the Institute's Imaging Center, has achieved a quantitative in vivo measurement of the dynamic protein-protein interactions in the mitogen-activated protein (MAP) kinase cascade signaling pathway, which is critical to growth and differentiation decisions in all eukaryotic cells.

14 Dec 2007

Perfusion in burn injuries rapidly determined by using improved laser-Doppler technology

The perfusion of a burn injury can now rapidly be determined by using a new technique developed by scientists of the University of Twente.

14 Dec 2007

Data suggests chromium picolinate may improve cognitive function

Nutrition 21, Inc. has announced the results of a clinical study that showed daily supplementation with 1000 mcg of chromium as chromium picolinate improved cognitive function in older adults experiencing early memory decline.

14 Dec 2007

Different areas of the brain respond to belief, disbelief and uncertainty

The human mind is a prolific generator of beliefs about the world. The capacity of our minds to believe or disbelieve linguistic propositions is a powerful force for controlling both behavior and emotion, but the basis of this process in the brain is not yet understood.

13 Dec 2007

PET/CT imaging proves golden for detecting cancer in children

PET/CT imaging exhibits significantly higher sensitivity, specificity and accuracy than conventional imaging when it comes to detecting malignant tumors in children, according to research published in the December issue of the Journal of Nuclear Medicine.

13 Dec 2007

Odyssey Thera granted U.S. patent for animal imaging

Odyssey Thera, Inc. has announced that the United States Patent and Trademark Office granted U.S. Patent No. 7,306,914, entitled "Protein-fragment Complementation Assays (PCA) in whole animals: applications to drug efficacy, ADME, cancer biology, immunology, infectious disease and gene therapy.

13 Dec 2007

Short pulses of low-energy laser light create better medical images

Detection and treatment of tumours, diseased blood vessels and other soft-tissue conditions could be significantly improved, thanks to an innovative imaging system being developed that uses both light and sound.

13 Dec 2007

Cell-tracking software speeds drug development

Time is money, especially in the race to discover new anti-inflammatory drugs and bring them to market.

13 Dec 2007

Accuracy of diagnostic mammograms varies by radiologist

For women with breast symptoms such as lumps, the ability of diagnostic mammograms to detect breast cancer accurately depends strongly on which radiologist reads them, according to a Group Health study published online on December 11 in the Journal of the National Cancer Institute.

13 Dec 2007