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Huntington's disease triggered by genetic instability in brain cells, study finds

Huntington's disease is triggered by genetic instability of a particular DNA sequence in brain cells, according to a new study of the lethal neurodegenerative disorder.

source https://medicalxpress.com/news/2019-08-huntington-disease-triggered-genetic-instability.html

Officials: More kids in Mass. ingesting marijuana products

Massachusetts health care officials say there has been an increase in calls to the state's poison control center about toddlers ingesting marijuana products.

source https://medicalxpress.com/news/2019-08-kids-mass-ingesting-marijuana-products.html

Japan under pressure over past hunting of endangered whales

Japan insisted Friday it no longer hunts endangered sei whales in international waters, but faced accusations of still violating a wildlife treaty by allowing commercialisation of meat from past catches.

source https://phys.org/news/2019-08-japan-pressure-endangered-whales.html

Colorado OKs electric car requirement to fight air pollution

Colorado tightened its air quality regulations on Friday, requiring that at least 5% of the vehicles sold in the state by 2023 emit zero pollution.

source https://phys.org/news/2019-08-colorado-oks-electric-car-requirement.html

NASA picks Alabama's 'Rocket City' for lunar lander job

NASA picked Alabama's "Rocket City" on Friday to lead development of the next moon lander for astronauts.

source https://phys.org/news/2019-08-nasa-alabama-rocket-city-lunar.html

Study reveals how stress can curb the desire to eat in an animal model

Eating disorder researchers at The University of Texas Health Science Center at Houston (UTHealth) have discovered a neurocircuit in mice that, when activated, increased their stress levels while decreasing their desire to eat. Findings appear in Nature Communications.

source https://medicalxpress.com/news/2019-08-reveals-stress-curb-desire-animal.html

Humans migrated to Mongolia much earlier than previously believed

Stone tools uncovered in Mongolia by an international team of archaeologists indicate that modern humans traveled across the Eurasian steppe about 45,000 years ago, according to a new University of California, Davis, study. The date is about 10,000 years earlier than archaeologists previously believed.

source https://phys.org/news/2019-08-humans-migrated-mongolia-earlier-previously.html

From the tiny testes of flies, new insight into how genes arise

In the battle of the sexes, males appear to have the innovative edge—from a genetic standpoint, at least. Scientists are finding that the testes are more than mere factories for sperm; these organs also serve as hotspots for the emergence of new genes, the raw material for the evolution of species.

source https://phys.org/news/2019-08-tiny-flies-insight-genes.html

A novel cellular process to engulf nano-sized materials

Nanometers are one billionth of a meter, a metric typically used to measure molecules and scientific building blocks not visible to the human eye. Materials of tens and/or several hundred nanometers in diameter have unique properties, and thus have been widely used in diagnosing and treating various human diseases. One major challenge to use these nano-sized materials is how to deliver them into cells and reach their sites of action.

source https://phys.org/news/2019-08-cellular-engulf-nano-sized-materials.html

Unraveling the stripe order mystery

One of the greatest mysteries in condensed matter physics is the exact relationship between charge order and superconductivity in cuprate superconductors. In superconductors, electrons move freely through the material—there is zero resistance when it's cooled below its critical temperature. However, the cuprates simultaneously exhibit superconductivity and charge order in patterns of alternating stripes. This is paradoxical in that charge order describes areas of confined electrons. How can superconductivity and charge order coexist?

source https://phys.org/news/2019-08-unraveling-stripe-mystery.html

Researchers refine guidelines for pediatric brain injuries

When a child suffers a head trauma, medical professionals are in high gear to prevent further damage to a developing brain. Measuring and regulating the child's level of carbon dioxide is critical to ensuring the brain is getting enough blood oxygen to prevent a secondary brain injury. High carbon dioxide can increase intracranial pressure, while a low level is associated with poor brain circulation.

source https://medicalxpress.com/news/2019-08-refine-guidelines-pediatric-brain-injuries.html

Wearable sensors detect what's in your sweat

Needle pricks not your thing? A team of scientists at the University of California, Berkeley, is developing wearable skin sensors that can detect what's in your sweat.

source https://techxplore.com/news/2019-08-wearable-sensors.html

Children with mild asthma can use inhalers as needed

A new study from Washington University School of Medicine in St. Louis supports evidence that children with mild asthma can effectively manage the condition by using their two inhalers—one a steroid and the other a bronchodilator—when symptoms occur. This is in contrast to the traditional method of using the steroid daily, regardless of symptoms, and the bronchodilator when symptoms occur. The as-needed use of both inhalers is just as effective for mild asthma as the traditional protocol, according to the investigators.

source https://medicalxpress.com/news/2019-08-children-mild-asthma-inhalers.html

Guidelines for managing severe traumatic brain injury continue to evolve

New evidence continues to drive the evolution of guideline recommendations for the medical management of patients with severe traumatic brain injury (TBI). A comprehensive look at how the four editions of the Brain Trauma Foundation guidelines for managing severe TBI have become a global standard for treating patients and key challenges and goals for the future are featured in an article published in Journal of Neurotrauma.

source https://medicalxpress.com/news/2019-08-guidelines-severe-traumatic-brain-injury.html