ScienceDaily: Top Health News

---

• Walking can lower risk of heart-related conditions as much as running
• Building better blood vessels could advance tissue engineering
• A 'light switch' in brain illuminates neural networks: Scientists can see cells communicate by flipping a neural light switch
• 3-D printer can build synthetic tissues
• Assessing insulin resistance can inform about breast cancer risk
• Adult stem cells isolated from human intestinal tissue
• Body representation differs in children and adults
• Weapons by which bacteria fight each other revealed: Could lead to new antibacterial drugs
• Online learning: It's different
• Graduate glut spells underused skills and dissatisfaction for many
• National teen driving report in U.S. finds safety gains for teen passengers
• Genetic markers ID second Alzheimer's pathway
• Shutting down DNA construction: How senescence halts growth of potential cancers
• Obesity without the health problems? There could be a way
• Chemotherapy works in an unexpected way
• Shift of language function to right hemisphere impedes post-stroke aphasia recovery
• Hepatitis A virus discovered to cloak itself in membranes hijacked from infected cells
• Prostate cancer treatment study changing the way doctors practice
• Could playing 'boys' games help girls in science and math?
• Human infection with influenza A(H7N9) in China
• Hallucinations of musical notation
• Wild mice have natural protection against Lyme borreliosis
• Stem cells fill gaps in bones

Walking can lower risk of heart-related conditions as much as running Posted: 04 Apr 2013 02:02 PM PDT Walking can lower the risk of high blood pressure, high cholesterol and diabetes as much as running. The more people walked or ran each week, the more their health benefits increased.

Building better blood vessels could advance tissue engineering Posted: 04 Apr 2013 12:19 PM PDT One of the major obstacles to growing new organs -- replacement hearts, lungs and kidneys -- is the difficulty researchers face in building blood vessels that keep the tissues alive, but new findings could help overcome this roadblock.

A 'light switch' in brain illuminates neural networks: Scientists can see cells communicate by flipping a neural light switch Posted: 04 Apr 2013 11:25 AM PDT Researchers have combined a range of advanced techniques that enable them to identify which neurons communicate with each other at different times in the rat brain, and in doing so, create the animal's sense of location.

3-D printer can build synthetic tissues Posted: 04 Apr 2013 11:24 AM PDT A custom-built programmable 3-D printer can create materials with several of the properties of living tissues, scientists have demonstrated.

Assessing insulin resistance can inform about breast cancer risk Posted: 04 Apr 2013 10:52 AM PDT The link between obesity and cancer seems now well established although the molecular mechanisms underlying this connection are still largely unexplored. Scientists have ow studied the correlation between breast cancer and insulin resistance — an obesity-related condition in which certain cells fail to respond to the glucose-lowering action of the insulin hormone.

Adult stem cells isolated from human intestinal tissue Posted: 04 Apr 2013 10:51 AM PDT For the first time, researchers have isolated adult stem cells from human intestinal tissue. The accomplishment provides a much-needed resource for scientists eager to uncover the true mechanisms of human stem cell biology.

Body representation differs in children and adults Posted: 04 Apr 2013 09:24 AM PDT Children's sense of having and owning a body differs from that of adults, indicating that our sense of physical self develops over time, according to a new study.

Weapons by which bacteria fight each other revealed: Could lead to new antibacterial drugs Posted: 04 Apr 2013 09:24 AM PDT Biologists have discovered that bacteria can degrade the cell membrane of bacterial competitors with enzymes that do not harm their own membrane. This exciting finding opens the way for the development of new antibacterial drugs to fight bacteria using their own weapons.

Online learning: It's different Posted: 04 Apr 2013 09:22 AM PDT Researchers have found that, by interspersing online lectures with short tests, student mind wandering decreased by 50 percent, note-taking tripled and overall retention of the material improved.

Graduate glut spells underused skills and dissatisfaction for many Posted: 04 Apr 2013 09:22 AM PDT Graduates are taking up jobs that don't fully use their skills and as a result are causing high turnover for employers, claims new research. The findings raise questions about today's high throughput in university education.

National teen driving report in U.S. finds safety gains for teen passengers Posted: 04 Apr 2013 09:21 AM PDT A new report measured a 47 percent decline in teen driver-related fatalities since 2008. Still, as recent high-profile crashes illustrate, crashes remains the leading cause of death for US teens. Risky behaviors- like smartphone use while driving, driving after drinking, and low seat belt use- remain serious problems, and experts see specific opportunities to "apply the gas" to these common factors in crashes involving teen drivers.

Genetic markers ID second Alzheimer's pathway Posted: 04 Apr 2013 09:21 AM PDT Researchers have identified a new set of genetic markers for Alzheimer's disease that point to a second pathway through which the disease develops.

Shutting down DNA construction: How senescence halts growth of potential cancers Posted: 04 Apr 2013 09:21 AM PDT How does oncogene-induced senescence work? Imagine the cell as a construction site where work continues as long as bricks (nucleotides) are available. When an oncogene is damaged, it is like hiring excess workers and cancelling orders for bricks. When brick supplies run out, construction ends and the cell becomes senescent.

Obesity without the health problems? There could be a way Posted: 04 Apr 2013 09:20 AM PDT Obesity is linked to the widespread epidemics of diabetes and heart disease that plague society, but a lesser-known fact is that the weight can also lead to autoimmune disease. Now, researchers have new information about how that damaging immune response happens and how it might be stopped.

Chemotherapy works in an unexpected way Posted: 04 Apr 2013 09:20 AM PDT New research shows that effective chemotherapies actually work by mobilizing the body's own immune cells to fight cancer. Researchers found that chemo-treated dying tumors secrete a factor that attracts certain immune cells, which then ingest tumor proteins and present them on their surfaces as alert signals that an invader is present. This new understanding of how chemotherapy works with our immune systems could prompt new tactics for treating cancer.

Shift of language function to right hemisphere impedes post-stroke aphasia recovery Posted: 04 Apr 2013 09:19 AM PDT In a study designed to differentiate why some stroke patients recover from aphasia and others do not, investigators have found that a compensatory reorganization of language function to right hemispheric brain regions bodes poorly for language recovery. Patients who recovered from aphasia showed a return to normal left-hemispheric language activation patterns.

Hepatitis A virus discovered to cloak itself in membranes hijacked from infected cells Posted: 04 Apr 2013 09:18 AM PDT Viruses have historically been classified into one of two types – those with an outer lipid-containing envelope and those without an envelope. For the first time, researchers have discovered that hepatitis A virus, a common cause of enterically-transmitted hepatitis, takes on characteristics of both virus types depending on whether it is in a host or in the environment.

Prostate cancer treatment study changing the way doctors practice Posted: 04 Apr 2013 06:28 AM PDT A new article recommends a dramatic shift in treating metastatic prostate cancer. Hormone therapy has been shown to extend the lives of patients, but it causes unpleasant side effects in men like moodiness, hot flashes, bone loss and sexual dysfunction. To relieve patients, doctors "pulsed" the therapy -- giving it for a time and then stopping until signs of prostate cancer activity reappear. The study shows that continuous therapy helps more.

Could playing 'boys' games help girls in science and math? Posted: 04 Apr 2013 06:26 AM PDT A new review finds that men still have better spatial ability than women and  this may be explained by gender-role identification.

Human infection with influenza A(H7N9) in China Posted: 04 Apr 2013 04:35 AM PDT On April 3, 2013, the China Health and Family Planning Commission notified WHO of an additional four cases of human infection with influenza A(H7N9). The four patients are from Jiangsu province in eastern China. There is no link between the cases.

Hallucinations of musical notation Posted: 04 Apr 2013 04:30 AM PDT A physician and neurologist has outlined case studies of hallucinations of musical notation, and commented on the neural basis of such hallucinations.

Wild mice have natural protection against Lyme borreliosis Posted: 04 Apr 2013 04:29 AM PDT Like humans, mice can become infected with Borrelia. However, not all mice that come into contact with these bacteria contract the dreaded Lyme disease: Animals with a particular gene variant are immune to the bacteria, as scientists demonstrate. Wild mice are the primary hosts for Borrelia, which are transmitted by ticks.

Stem cells fill gaps in bones Posted: 04 Apr 2013 04:29 AM PDT For many patients the removal of several centimeters of bone from the lower leg following a serious injury or a tumor extraction is only the beginning of a long-lasting ordeal. Autologous stem cells have now been found to accelerate and boost the healing process. Surgeons have achieved promising results: without stem cells, it takes on average 49 days for one centimeter of bone to regrow; with stem cells, that period has been reduced to 37 days.

You are subscribed to email updates from ScienceDaily: Top Health News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610