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Saturday, December 14, 2013

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Engineers make strides toward artificial cartilage

Posted: 13 Dec 2013 10:55 AM PST

A research team has developed a better recipe for synthetic replacement cartilage in joints, calling for a newly designed durable hydrogel to be poured over a three-dimensional fabric "scaffold."

Misunderstanding of palliative care leads to preventable suffering

Posted: 13 Dec 2013 10:54 AM PST

A new review says palliative care's association with end of life has created an "identity problem" that means the majority of patients facing a serious illness do not benefit from treatment of the physical and psychological symptoms that occur throughout their disease.

Zebrafish help decode link between calcium deficiency, colon cancer

Posted: 13 Dec 2013 10:54 AM PST

A tiny, transparent fish embryo and a string of surprises led scientists to a deeper understanding of the perplexing link between low calcium and colon cancer.

Clot-busters, caught on tape

Posted: 13 Dec 2013 10:53 AM PST

Ultrasound-stimulated microbubbles have been showing promise in recent years as a non-invasive way to break up dangerous blood clots. But though many researchers have studied the effectiveness of this technique, not much was understood about why it works. Now a team of researchers has collected the first direct evidence showing how these wiggling microbubbles cause a blood clot's demise.

Newly discovered gene interaction could lead to novel cancer therapies

Posted: 13 Dec 2013 06:49 AM PST

Scientists have revealed how two genes interact to kill a wide range of cancer cells. The genes known as mda-7/IL-24 and SARI could potentially be harnessed to treat both primary and metastatic forms of brain, breast, colon, lung, ovary, prostate, skin and other cancers.

Scientists improve human self-control through electrical brain stimulation

Posted: 13 Dec 2013 06:49 AM PST

If you have ever said or done the wrong thing at the wrong time, you should read this. Neuroscientists have successfully demonstrated a technique to enhance a form of self-control through a novel form of brain stimulation.

Study breaks blood-brain barriers to understanding Alzheimer's

Posted: 13 Dec 2013 06:48 AM PST

A study in mice shows how a breakdown of the brain's blood vessels may amplify or cause problems associated with Alzheimer's disease. The results suggest that blood vessel cells called pericytes may provide novel targets for treatments and diagnoses.

Scientists, practitioners don't see eye to eye on repressed memory

Posted: 13 Dec 2013 06:48 AM PST

Skepticism about repressed traumatic memories has increased over time, but new research shows that psychology researchers and practitioners still tend to hold different beliefs about whether such memories occur and whether they can be accurately retrieved.

Wrist fracture significantly raises risk of hip fracture

Posted: 13 Dec 2013 06:48 AM PST

A new study showed that patients with Colles' fracture are at higher risk than patients with osteoporosis to have a subsequent hip fracture within one year; Colles' fracture and osteoporosis together further increase the risk of hip fracture.

A stop sign for cancer

Posted: 13 Dec 2013 06:33 AM PST

A particularly aggressive form of leukemia is the acute lymphoblastic leukemia (ALL). It is especially common among children and very difficult to treat. Researchers have now discovered completely new targets for the treatment of blood cancers. Studying the cancer protein STAT5, the scientists found new opportunities for the development of effective anti-cancer drugs.

New discovery on how skin cells form 'bridges' paves the way for advances in wound healing and tissue engineering

Posted: 13 Dec 2013 06:28 AM PST

Scientists have discovered that outer skin cells are able to unite to form suspended "bridges" during wound healing. The new findings will pave the way for tissue engineering, such as the design of artificial skin, and better wound treatment.

Family structure linked to high blood pressure in African-American men

Posted: 12 Dec 2013 03:58 PM PST

In a study of African-American men, researchers found that boys who grew up in two-parent homes were less likely to have high blood pressure as adults compared to those raised by a single parent. This is the first study of an African-American population to document an association between childhood family living arrangements and blood pressure.

Using air transportation data to predict pandemics

Posted: 12 Dec 2013 11:21 AM PST

Computational work has led to a new mathematical theory for understanding the global spread of epidemics. The resulting insights could not only help identify an outbreak's origin but could also significantly improve the ability to forecast the global pathways through which a disease might spread. Scientists could use the theory to reconstruct outbreak origins with higher confidence, compute epidemic spreading speed and forecast when an epidemic wave front is to arrive at any location worldwide.

Study documents secondhand exposure to nicotine from electronic cigarettes

Posted: 12 Dec 2013 11:19 AM PST

Study compared emissions from electronic and conventional cigarettes, and found that secondhand exposure to nicotine from e-cigarettes is on average 10 times less than from tobacco smoke.

Children with autism benefit from peer solicitation

Posted: 12 Dec 2013 11:19 AM PST

Peer solicitation – a child inviting another to play – can improve reciprocal social interaction among children with autism, according to a study.

New way to predict prognosis for heart failure patients

Posted: 11 Dec 2013 03:50 PM PST

Researchers have identified a new way to predict which heart failure patients are likely to see their condition get worse and which ones have a better prognosis. Their study is one of the first to show that energy metabolism within the heart, measured using a noninvasive magnetic resonance imaging (MRI) test, is a significant predictor of clinical outcomes, independent of a patient's symptoms or the strength of the heart's ability to pump blood, known as the ejection fraction.

Poverty influences children's early brain development

Posted: 11 Dec 2013 03:37 PM PST

Poverty may have direct implications for important, early steps in the development of the brain, saddling children of low-income families with slower rates of growth in two key brain structures, according to researchers.

In search of treatment for rare bone cancer

Posted: 11 Dec 2013 11:19 AM PST

Researchers say that a drug approved to treat lung cancer substantially shrank tumors in mice that were caused by a rare form of bone cancer called chordoma.

Rare gene variants double risk for Alzheimer's disease

Posted: 11 Dec 2013 10:39 AM PST

A team of researchers has identified variations in a gene that double a person's risk of developing Alzheimer's disease later in life. The newly identified variations occur rarely in the population, making them hard for researchers to identify. But they're important because individuals who carry them are at substantially increased risk.

Scientists resolve decades-old mystery of ‘chlamydial anomaly’

Posted: 11 Dec 2013 10:39 AM PST

A 50-year-old mystery surrounding the existence of a cell wall in the bacterial pathogen Chlamydia trachomatis, or chlamydia, has been solved. Chlamydia is the leading cause of sexually transmitted infections worldwide, infecting nearly 1.5 million Americans each year. It can cause sterility and other complications, and is the leading cause of preventable blindness. Other types of chlamydia cause a variety of diseases in humans and animals, including two strains of the bacterium that are threatening survival of the koala population in Australia.

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