Volume 11 Issue 228
Published - 14:00 UTC 08:00 EST 1-Sep-2009 
Next Update - 14:00 UC 08:00 EST 2-Sep-2009






Editor: Susan K. Boyer, RN
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Why don’t brain tumors respond to medication?

Malignant brain tumors often fail to respond to promising new medication. Researchers in Heidelberg have discovered a mechanism and a tumor marker for the development of this resistance. A “death receptor” can possibly provide information as to how great the chances of success are for chemotherapy. At the same time, it offers a new approach for promising brain tumor therapy. more  

New information about how fat increases blood pressure could help identify those at risk

Some of the first information about how fat causes hypertension have been identified by researchers who say the findings should one day help identify which obese people – and maybe some thin ones too – are at risk for hypertension and which drugs would work best for them. more

Daylight-saving time leads to less sleep, more injuries on the job

Every March, most Americans welcome the switch to daylight saving time because of the longer days, but also dread losing an hour of sleep after they move their clocks forward. Now a new study shows that losing just an hour of sleep could pose some dangerous consequences for those in hazardous work environments. more  

AMI: The scale of the problem

Acute myocardial infarction (AMI) remains one of the leading causes of death in the Western world, with prevalence predicted to increase dramatically in developing countries, especially India and China. Around 40-50% of AMIs are the result of a persistent, complete thrombotic occlusion of a coronary artery. In such cases fast reopening of the infarct vessel is the primary goal of treatment. more

Is Tetris good for the brain?  

Brain imaging shows playing Tetris leads to a thicker cortex and may also increase brain efficiency, according to research published in the open access journal BMC Research Notes. A research team based in New Mexico is one of the first to investigate the effects of practice in the brain using two image techniques. more

Studies in animals suggest 2009 H1N1 virus may have biological advantage over seasonal influenza  

Preliminary findings in ferrets suggest that the novel 2009 H1N1 influenza virus may outcompete human seasonal influenza viruses, researchers say. Tests in animals showed that levels of the 2009 H1N1 virus rose more quickly than levels of the seasonal virus strains, and the new virus caused more severe disease. In line with previous findings by other research groups, the University of Maryland researchers also observed that the novel H1N1 virus was transmitted more easily from infected to uninfected ferrets than either of the two seasonal influenza viruses. more

Biotransformed blueberry juice fights fat and diabetes

Juice extracted from North American lowbush blueberries, biotransformed with bacteria from the skin of the fruit, holds great promise as an anti-obesity and anti-diabetic agent. The study, published in the International Journal of Obesity, was conducted by researchers from the Université de Montréal, the Institut Armand-Frappier and the Université de Moncton who tested the effects of biotransformed juices compared to regular blueberry drinks on mice. more

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Information appearing on the Vidyya Medical News Service is not intended as a substitute for professional medical care. Seek professional medical help and follow your health care provider's advice.

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Brain imaging shows playing Tetris leads to a thicker cortex and may also increase brain efficiency