الخميس، 20 أكتوبر 2016

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Tiny gold particles could be key to developing a treatment for pancreatic cancer

Posted: 19 Oct 2016 10:27 AM PDT

A diagnosis of pancreatic cancer is often a death sentence because chemotherapy and radiation have little impact on the disease. In the U.S. this year, some 53,000 new cases will be diagnosed, and 42,000 patients will die of the disease. But research could eventually lead to a new type of treatment based on gold nanoparticles.

Neurodevelopmental model of Zika may provide rapid answers

Posted: 19 Oct 2016 10:24 AM PDT

A newly study demonstrates fetal death and brain damage in early chick embryos similar to microcephaly—a rare birth defect linked to the Zika virus.

Single gene linked to some cases of autism spectrum disorder

Posted: 19 Oct 2016 09:26 AM PDT

Scientists have linked mutations in a single gene to autism in people who have a rare tumor syndrome typically diagnosed in childhood. The findings, in patients with neurofibromatosis type 1 (NF1), may lead to a better understanding of the genetic roots of autism in the wider population.

Gene deletion points way to flu treatment

Posted: 19 Oct 2016 09:25 AM PDT

Researchers kept mice from getting the flu by removing a gene that regulates their immune system. According to the study, mice missing the gene Trim29 eliminated human influenza virus within 48 hours, protecting them from infection.

Drinking an ice slurry/water mix helps body cope with exertion in hot weather

Posted: 19 Oct 2016 09:23 AM PDT

Temperature of water consumed may be as important as the amount when trying to manage thermoregulation, indicates new report.

Functional Effects of Human Stem Cell Delivery to Heart Muscle After Heart Attack

Posted: 19 Oct 2016 08:08 AM PDT

Researchers delivered human stem cells seeded in biological sutures to the damaged heart muscles of rats following induced acute myocardial infarction and assessed the effects on cardiac function one week later. The differences in mechanical function at a local and global level when stem cell seeded sutures were used compared to sutures without stem cells have now been documented.

Severe lead poisoning in children: Causes and risk factors

Posted: 19 Oct 2016 05:25 AM PDT

Although national and local policies have reduced the prevalence of lead poisoning in the United States, severe cases still occur.  Whereas, exposures at blood lead levels (BLLs) as low as 5 µg/dL have been associated with long-term irreversible cognitive deficits, more severe exposures at BLLs ?45 µg/dL can result in organ damage and death.  In a new study scheduled for publication in The Journal of Pediatrics, researchers identified sources of exposure and assessed outcomes for children with severe lead poisoning.

Bacterial genes boost current in human cells

Posted: 18 Oct 2016 04:47 PM PDT

Biomedical engineers have harvested genes for ion channels from bacteria that, with a few tweaks, can create and enhance electrical signaling in human cells, making the cells more electrically excitable. The technique could one day be used to treat cardiac arrhythmia or to restore electrical functions to scarred heart or nervous system tissues. It might also prove useful for treating a variety of genetic diseases involving poor conductivity in human sodium and calcium channels, say the researchers.

Medical ethicists challenge court ruling on lethal injection in Alabama case

Posted: 18 Oct 2016 10:26 AM PDT

Court orders demanding death row inmates to provide "specific, detailed and concrete alternatives" to a state's lethal injection protocol compel those inmates to produce evidence that is impossible to obtain without forcing physicians and other clinicians to violate their medical ethics, according to Harvard bioethicists and legal experts. Such orders, therefore, the experts argue, pose an insurmountable hurdle for inmates seeking alternative methods of execution.

Ancient fish illuminates one of the mysteries of childhood

Posted: 17 Oct 2016 09:40 AM PDT

Remember dropping your milk teeth? After a lot of wiggling the tooth finally dropped out. But in your hand was only the enamel-covered crown: the entire root of the tooth had somehow disappeared.

Study applies math to describe tumor growth

Posted: 17 Oct 2016 09:38 AM PDT

A new study mathematically explains how tumors induce the growth of blood vessels. The study maintains that the tips of the blood vessels expand like a soliton, a solitary wave similar to a tsunami.

Replacing diet beverages with water may help diabetic patients lose weight

Posted: 17 Oct 2016 09:37 AM PDT

In a study of 81 overweight and obese women with type 2 diabetes who usually consumed diet beverages and were on a weight loss program, those who substituted water for diet beverages after their lunch for 24 weeks had a greater decrease in weight (-6.40 vs. -5.25 kg) and body mass index (-2.49 vs. -2.06 kg/m2) compared with those who continued to consume diet beverages. Participants who switched to water also experienced greater improvements in fasting blood sugar levels and insulin sensitivity.

Neural signature for fibromyalgia may aid diagnosis, treatment

Posted: 17 Oct 2016 08:11 AM PDT

A brain signature that identifies fibromyalgia sufferers with 93 percent accuracy has been discovered by researchers, a potential breakthrough for future clinical diagnosis and treatment of the highly prevalent condition. Fibromyalgia is commonly defined as chronic widespread musculoskeletal pain accompanied by symptoms such as fatigue, anxiety and mood disorders, with significantly higher occurrence rates in women than in men.
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