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Depression: Why Life Can Feel Out Of Control
Date: Apr-25-2013People with depression often feel their life is out of control. It can evoke feelings that their life is pointless or by merely existing bad things can happen. Research funded by the Economic and Social Research Council (ESRC) suggests that these feeling may be caused by subtle changes in the way depressed people perceive time and process their surroundings...
Cancer Experts Detail Advanced Radiosurgery Treatments For Lung Cancer Using Varian Medical Systems Technologies
Date: Apr-25-2013More than 800 oncology professionals at European Society for Radiotherapy and Oncology forum hear of pioneering treatment delivery, motion management and tumor-tracking technologies for tackling the growing lung cancer burden Cancer experts have reported future trends and progress in radiotherapy treatments for lung cancer using motion management and tumor-tracking technologies from Varian Medical Systems (NYSE: VAR)...
News From The Journal Of Clinical Investigation: April 24, 2013
Date: Apr-25-2013An ACE in the hole for hypertension There are multiple environmental triggers that contribute to high blood pressure (hypertension), including aging, obesity, stress, alcohol intake, and excess dietary salt; however, the physiological mechanisms that are regulated by these triggers are not fully understood. Blood pressure is controlled in part by the renin angiotensin system (RAS), which manages the release of the hormone angiotensin to control blood vessel constriction...
Discoveries Offer New Explanation For Diabetes And Poor Growth
Date: Apr-25-2013A group of researchers from the University of Copenhagen has taken a significant step towards understanding the reasons for both diabetes and growth hormone deficiency. Their new discoveries centre on the body's ability to regulate certain hormones, and their findings have just been published in the respected scientific journal PLOS Biology. Some people suffering from diabetes or affected by poor growth most likely have problems with the so-called PICK1 protein, a protein that plays a decisive role in the formation of both growth hormone and insulin in the human body...
Adolescents Biologically Driven To Go Through A Social Reorientation
Date: Apr-25-2013A specific region of the brain is in play when children consider their identity and social status as they transition into adolescence - that often-turbulent time of reaching puberty and entering middle school, says a University of Oregon psychologist. In a study of 27 neurologically typical children who underwent functional magnetic resonance imaging (fMRI) at ages 10 and 13, activity in the brain's ventromedial prefrontal cortex increased dramatically when the subjects responded to questions about how they view themselves...
Hundreds Of Tiny Untethered Surgical Tools Deployed In First Animal Biopsies
Date: Apr-25-2013By using swarms of untethered grippers, each as small as a speck of dust, Johns Hopkins engineers and physicians say they have devised a new way to perform biopsies that could provide a more effective way to access narrow conduits in the body as well as find early signs of cancer or other diseases. In two recent peer-reviewed journal articles, the team reported successful animal testing of the tiny tools, which require no batteries, wires or tethers as they seize internal tissue samples...
Trigger Switch For The Conversion Of Fat Cells May Help Melt Away 'Love Handles'
Date: Apr-25-2013For a long time, scientists have dreamt of converting undesirable white fat cells into brown fat cells and thus simply have excess pounds melt away. Researchers at the University of Bonn have now gotten a step closer to this goal: They decoded a "toggle switch" in mice which can significantly stimulate fat burning. The results are now being presented in the scientifc journal Nature Communications. Many people not only in industrialized nations struggle with excess weight - but all fat is not alike. "Love handles" in particular contain troublesome white fat cells which store excess food...
There's Safety In Numbers
Date: Apr-25-2013Humans, when alone, see threats as closer than they actually are. But mix in people from a close group, and that misperception disappears. In other words, there's safety in numbers, according to a new study by two Michigan State University scholars. Their research provides the first evidence that people's visual biases change when surrounded by members of their own group. "Having one's group or posse around actually changes the perceived seriousness of the threat," said Joseph Cesario, lead author on the study and assistant professor of psychology...
Mathematical Model Aids Ongoing Efforts To Reduce Salmonella Infection
Date: Apr-25-2013Our gut is home to trillions of bacteria, numbering more than the cells in the rest of our body, and these bacteria help us to digest our food, absorb nutrients and strengthen our immune system. This complex bacterial ecosystem, called the gut microbiota, also helps to prevent bad bacteria from colonising our bodies and making us ill. As part of the symbiotic relationship between the gut microbiota and our bodies, the bacteria derive nutrition from our food and convert it into compounds that we can't make ourselves...
Understanding How Neurons Represent The World
Date: Apr-25-2013We know the world through the sensory representations within our brain. Such "reconstruction" is performed through the electrical activation of neural cells, the code that contains the information that is constantly processed by the brain. If we wish to understand what are the rules followed by the representation of the world inside the brain we have to comprehend how electrical activation is linked to the sensory experience...
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