Health1140 Videos

New information on how brain cancer spreads

[ad_1] Glioblastoma multiforme remains the most common and highly lethal brain cancer and is known for its ability to relapse. Researchers have identified a pathway by which cancer cells aggressively spread and grow in the brain, opening up new possibilities for treatment. [ad_2] Source link

How a ring of mountains forms inside a crater

[ad_1] Building mountains in minutes requires deep rocks and a big bang. Rings of mountainous peaks sit inside large impact craters, but scientists weren’t sure how these features formed. One explanation proposed that these mountains form from deep rocks jolted to the surface by the impact. Another theory suggested that uplift caused surface rocks to […]

Marijuana could help treat drug addiction, mental health, study suggests

[ad_1] Using marijuana could help some alcoholics and people addicted to opioids kick their habits, a new study suggests. The research also found some evidence that medical cannabis may help with symptoms of depression, PTSD and social anxiety. However, the review concluded that cannabis use might not be recommended for conditions such as bipolar disorder […]

Mysterious radio signals pack power and brilliance

[ad_1] Mysterious flashes of radio waves from deep space keep coming, but they are just as mysterious as ever. Gamma rays might have accompanied one of these eruptions, researchers report in the Nov. 20 Astrophysical Journal Letters. This is the first time high-energy photons have been associated with these blasts of radio energy, known as […]

What can Pokémon Go teach the world of conservation?

[ad_1] Launched in July this year, Pokémon Go has become a global phenomenon, reaching 500 million downloads within two months of release. The augmented reality game, designed for mobile devices, allows users to capture, battle and train virtual creatures called Pokémon that appear on screen as if part of the real-world environment. But can the […]

In some ways, hawks hunt like humans

[ad_1] A hunter’s gaze betrays its strategy. And looking at what an animal looks at when it’s hunting for prey has revealed foraging patterns in humans, other primates — and now, birds.  Suzanne Amador Kane of Haverford College in Pennsylvania and her colleagues watched archival footage of three raptor species hunting: northern goshawks (Accipiter gentilis), Cooper’s hawks […]

A hawk's-eye view of raptor hunting

[ad_1] The neural processes underlying visual hunting behavior in hawks are similar to those in humans, new research suggests. To study a raptor’s head movements while hunting, the scientists behind the study recruited an unusual research assistant—a Northern Goshawk named Shinta, fitted with a tiny head-mounted camera. [ad_2] Source link

Improving cryopreservation for a longer-lasting blood supply

[ad_1] Freezing and reanimating your body is still science fiction, but cryopreserving cells and certain tissues for future use is a reality. Still, the process could use some improvements to make it more useful in emergencies. In a recent study, scientists take a close look at a new class of small molecules with the potential […]

50 years ago, fluoridation was promoted as a bone protector

[ad_1] S.O. Griffin et al. Effectiveness of fluoride in preventing caries in adults. Journal of Dental Research. Vol. 86, May 2007, p. 410. doi: 10.1177/154405910708600504. B.L. Riggs et al. Effect of the Fluoride/Calcium Regimen on Vertebral Fracture Occurrence in Postmenopausal Osteoporosis — Comparison with Conventional Therapy. New England Journal of Medicine. Vol. 306, February 25, 1982, p. 446. […]

E-cigarettes may harm teens' lung health

[ad_1] E-cigarette use among teenagers is growing dramatically, and public health experts are concerned that these devices may be a gateway to smoking. Now, new research indicates that even if these young e-cigarette users do not become tobacco smokers, e-cigarettes may harm their health. [ad_2] Source link

Looking for a city's DNA? Try its ATMs

[ad_1] Automated teller machine keypads in New York City hold microbes from human skin, household surfaces, or traces of food, a study has found. The work shows that ATMs can provide a repository to offer a picture of a city’s DNA. [ad_2] Source link

A milestone in small RNA biology

[ad_1] Organisms are in a constant battle against viruses that invade their genomes. Among their most effective weapons are silencing pathways that use small RNAs to selectively target invading nucleic acids for their destruction. Scientists have now unravelled the precise mechanisms by which germline cells produce a class of small RNAs, called piRNAs, that control […]

New hydrogel can take organoids from dish to clinic

[ad_1] Scientists have developed a gel for growing miniaturized body organs that can be used in clinical diagnostics and drug development. Organoids are miniature organs that can be grown in the lab from a person’s stem cells. They can be used to model diseases, and in the future could be used to test drugs or […]

Heartburn drugs may raise stroke risk

[ad_1] NEW ORLEANS — Popular heartburn drugs — already under investigation for possible links to dementia, kidney and heart problems (SN: 6/11/16, p. 8) — have a new health concern to add to the list. An analysis of almost 250,000 medical records in Denmark has found an association with stroke. Researchers from the Danish Heart […]