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Health & Medicine News
Wed, 22 Oct 2014 16:40:52 EDT
Finally: Missing link between vitamin D, prostate cancer
A new study offers compelling evidence that inflammation may be the link between vitamin D and prostate cancer. Specifically, the study shows that the gene GDF-15, known to be upregulated by vitamin D, is notably absent in samples of human prostate cancer driven by inflammation.
Wed, 22 Oct 2014 16:40:41 EDT
Real-time tracking system developed to monitor dangerous bacteria inside body
Combining a PET scanner with a new chemical tracer that selectively tags specific types of bacteria, researchers working with mice report they have devised a way to detect and monitor in real time infections with dangerous Gram-negative bacteria. These increasingly drug-resistant bacteria are responsible for a range of diseases, including fatal pneumonias and various bloodstream or solid-organ infections acquired in and outside the hospital.
Wed, 22 Oct 2014 16:39:37 EDT
Paralyzed patients have weaker bones, higher risk of fractures than expected
People paralyzed by spinal cord injuries lose mechanical strength in their leg bones faster, and more significantly, than previously believed, putting them at greater risk for fractures from minor stresses, according to a study by researchers. The results suggest that physicians should begin therapies for such patients sooner to maintain bone mass and strength, and should think beyond standard bone density tests when assessing fracture risk in osteoporosis patients.
Wed, 22 Oct 2014 15:47:05 EDT
Bipolar disorder discovery at the nano level
A nano-sized discovery helps explain how bipolar disorder affects the brain and could one day lead to new drug therapies to treat the mental illness, researchers report.
Wed, 22 Oct 2014 15:47:01 EDT
Hospital logs staggering 2.5 million alarms in just a month
Following the study of a hospital that logged more than 2.5 million patient monitoring alarms in just one month, researchers have, for the first time, comprehensively defined the detailed causes as well as potential solutions for the widespread issue of alarm fatigue in hospitals.
Wed, 22 Oct 2014 14:36:28 EDT
Thermal paper cash register receipts account for high bisphenol A (BPA) levels in humans
BPA from thermal paper used in cash register receipts accounts for high levels of BPA in humans. Subjects studied showed a rapid increase of BPA in their blood after using a skin care product and then touching a store receipt with BPA.
Wed, 22 Oct 2014 14:36:01 EDT
Baby cries show evidence of cocaine exposure during pregnancy
A new study provides the first known evidence of how a similar acoustic characteristic in the cry sounds of human infants and rat pups may be used to detect the harmful effects of prenatal cocaine exposure on nervous system development.
Wed, 22 Oct 2014 14:35:59 EDT
Highly effective new anti-cancer drug shows few side effects in mice
A new drug, OTS964, can eradicate aggressive human lung cancers transplanted into mice, scientists report. It inhibits the action of a protein that is overproduced by several tumor types but is rarely expressed in healthy adult tissues. Without it, cancer cells fail to complete the cell-division process and die.
Wed, 22 Oct 2014 13:14:38 EDT
Fast modeling of cancer mutations
A new genome-editing technique enables rapid analysis of genes mutated in tumors, researchers report. Sequencing the genomes of tumor cells has revealed thousands of genetic mutations linked with cancer. However, sifting through this deluge of information to figure out which of these mutations actually drive cancer growth has proven to be a tedious, time-consuming process -- until now.
Wed, 22 Oct 2014 13:06:03 EDT
How lymph nodes expand during disease
The same specialized immune cells that patrol the body and spot infections also trigger the expansion of immune organs called lymph nodes, scientists have discovered. The immune system defends the body from infections and can also spot and destroy cancer cells. Lymph nodes are at the heart of this response, but until now it has never been explained how they expand during disease.
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