ScienceDaily: Top Health News

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ScienceDaily: Top Health News


Precision medicine for pediatric cancer
Sweat holds most promise for noninvasive testing
Seeing through a robot's eyes helps those with profound motor impairments
Oscillation in muscle tissue
Chemical probe can regulate signaling pathway and block cell invasion by arboviruses
A new battle: Veterans more likely to have heart disease
New proof that narcolepsy is an autoimmune disease
Trials testing new educational methods in schools 'often fail to produce useful evidence'
A repellent odor inhibits the perception of a pleasant odor in vinegar flies
Mental health issues increased significantly in young adults over last decade
Higher egg and cholesterol consumption hikes heart disease and early death risk
AI and MRIs at birth can predict cognitive development at age 2
New light shed on link between alcohol marketing and increased consumption in young people
For older adults, sense of control tied to feeling younger
Enzyme USP15 may have potential role in future treatment of various cancers
With single gene insertion, blind mice regain sight
Uncovering uncultivated microbes in the human gut
How a mitochondrial enzyme can trigger cell death
Most countries in sub-Saharan Africa not on track for under-5 mortality reduction goal
Narwhals spend at least half time diving for food, can fast for several days after meal
Diet-induced changes favor innovation in speech sounds
Using an anti-smoking drug to control neurons
Unique diversity of the genetic history of the Iberian Peninsula revealed by dual studies
More vitamin D may improve memory but too much may slow reaction time


Precision medicine for pediatric cancer



Posted: 15 Mar 2019 12:55 PM PDT


Research performed over the last several decades has led to an increased understanding of the genetics of cancer. The clinical application of this knowledge for pediatric cancer has lagged behind studies performed for adults. Medical researchers now survey the landscape of this young field and present opportunities for using genomic information to advance a new era of care for children with cancer.


Sweat holds most promise for noninvasive testing



Posted: 15 Mar 2019 12:55 PM PDT


Medical researchers have been creating new sensors on a wearable patch the size of a Band-Aid that stimulates sweat even when a patient is cool and resting. The sensor measures specific analytes over time that doctors can use to determine how the patient is responding to a drug treatment.


Seeing through a robot's eyes helps those with profound motor impairments



Posted: 15 Mar 2019 12:54 PM PDT


An interface system that uses augmented reality technology could help individuals with profound motor impairments operate a humanoid robot to feed themselves and perform routine personal care tasks such as scratching an itch and applying skin lotion. The web-based interface displays a 'robot's eye view' of surroundings to help users interact with the world through the machine.


Oscillation in muscle tissue



Posted: 15 Mar 2019 09:52 AM PDT


When a muscle grows or a muscle injury heals, some of the stem cells develop into new muscle cells. A research team has now described how this process is regulated by two proteins produced in an oscillatory manner.


Chemical probe can regulate signaling pathway and block cell invasion by arboviruses



Posted: 15 Mar 2019 08:59 AM PDT


Dysregulation of the signaling pathway known as the beta-catenin-dependent Wnt can also cause embryo malformation and contribute for the development of breast and cervical cancer.


A new battle: Veterans more likely to have heart disease



Posted: 15 Mar 2019 08:59 AM PDT


After the war is over, veterans face a new threat. They are more likely to have heart disease at a younger age than nonveterans, and this could herald a new health crisis on the horizon.


New proof that narcolepsy is an autoimmune disease



Posted: 15 Mar 2019 08:09 AM PDT


Researchers have discovered autoreactive cells in persons suffering from narcolepsy. This is a new, important proof that the sleep disorder is an autoimmune disease. This knowledge may lead to better treatment of the chronic condition, the researchers behind the new discovery believe.


Trials testing new educational methods in schools 'often fail to produce useful evidence'



Posted: 15 Mar 2019 08:09 AM PDT


The new study found that 40% of large-scale randomized controlled trials (RCTs) in the UK and the US failed to produce any evidence as to whether an educational intervention helped to boost academic attainment or not.


A repellent odor inhibits the perception of a pleasant odor in vinegar flies



Posted: 15 Mar 2019 08:09 AM PDT


Scientists have discovered that repellent odors suppress the perception of pleasant smells. This happens because certain brain structures that respond to attractive odors are inhibited by a repellent one. These processes in the brain are also reflected in the behavior of the flies. This helps them to avoid spoiled or infected food sources, which would have fatal consequences for the flies and their offspring.


Mental health issues increased significantly in young adults over last decade



Posted: 15 Mar 2019 08:09 AM PDT


The percentage of young Americans experiencing certain types of mental health disorders has risen significantly over the past decade, with no corresponding increase in older adults, according to new research.


Higher egg and cholesterol consumption hikes heart disease and early death risk



Posted: 15 Mar 2019 08:08 AM PDT


Cancel the cheese omelet. A large, new study of nearly 30,000 people reports adults who ate more eggs and dietary cholesterol had a significantly higher risk of cardiovascular disease and death from any cause. People need to consume lower amounts of cholesterol to have a lower risk of heart disease, the study authors said.


AI and MRIs at birth can predict cognitive development at age 2



Posted: 15 Mar 2019 07:00 AM PDT


Researchers used MRI brain scans and machine learning techniques at birth to predict cognitive development at age 2 years with 95 percent accuracy.


New light shed on link between alcohol marketing and increased consumption in young people



Posted: 15 Mar 2019 06:58 AM PDT


Young people's awareness of alcohol marketing -- and their ownership of alcohol-branded merchandise -- is associated with increased and higher-risk consumption, a landmark study has found.


For older adults, sense of control tied to feeling younger



Posted: 15 Mar 2019 06:58 AM PDT


A recent study finds that older adults feel younger when they feel that they have more control over their daily lives, regardless of stress or health concerns. However, stress and health -- not a sense of control -- play a significant role in how old younger adults feel.


Enzyme USP15 may have potential role in future treatment of various cancers



Posted: 15 Mar 2019 06:58 AM PDT


A team has found that the deubiquitinating enzyme USP15 is a potential biomarker for treatments of pancreatic cancer, as well as ovarian and breast cancers.


With single gene insertion, blind mice regain sight



Posted: 15 Mar 2019 06:58 AM PDT


People left blind by retinal degeneration have one option: electronic eye implants. Neuroscientists have now developed an alternative: gene therapy that, in tests, restored vision in blind mice. A gene for green opsin delivered via virus gave blind mice enough sight to discern patterns on an iPad at a resolution sufficient for humans to read. Given existing AAV eye therapies already approved, this new therapy could be ready for clinical trials in three years.


Uncovering uncultivated microbes in the human gut



Posted: 15 Mar 2019 06:58 AM PDT


A human's health is shaped both by environmental factors and the body's interactions with the microbiome, particularly in the gut. Genome sequences are critical for characterizing individual microbes and understanding their functional roles. However, previous studies have estimated that only 50 percent of species in the gut microbiome have a sequenced genome, in part because many species have not yet been cultivated for study.


How a mitochondrial enzyme can trigger cell death



Posted: 14 Mar 2019 12:16 PM PDT


Cytochrome c is a small enzyme that plays an important role in the production of energy by mitochondria. It is also involved in signaling dangerous problems that warrant apoptosis, or programmed cell death. Using solid-state NMR, researchers have discovered that the signal induced by cytochrome c is more controlled than expected.


Most countries in sub-Saharan Africa not on track for under-5 mortality reduction goal



Posted: 14 Mar 2019 12:16 PM PDT


The relatively slow pace of neonatal and under-5 mortality reduction could prevent most countries in sub-Saharan Africa from achieving targets set in Sustainable Development Goal 3 (SDG-3) by 2030, according to a new study.


Narwhals spend at least half time diving for food, can fast for several days after meal



Posted: 14 Mar 2019 12:16 PM PDT


Narwhals -- enigmatic arctic whales known for their sword-like tusk -- spend over half their time diving to find food but are also able to last up to three days without a meal, according to a new study.


Diet-induced changes favor innovation in speech sounds



Posted: 14 Mar 2019 12:16 PM PDT


Diet-induced changes in the human bite resulted in new sounds such as 'f' in languages all over the world, a study by an international team led by researchers has shown. The findings contradict the theory that the range of human sounds has remained fixed throughout human history.


Using an anti-smoking drug to control neurons



Posted: 14 Mar 2019 12:16 PM PDT


A potent chemogenetic system pairs an anti-smoking drug with specially engineered proteins to change neuron activity. The research tool could one day be used to treat conditions like epilepsy or pain.


Unique diversity of the genetic history of the Iberian Peninsula revealed by dual studies



Posted: 14 Mar 2019 12:15 PM PDT


Researchers have analyzed ancient DNA from almost 300 individuals from the Iberian Peninsula, spanning more than 12,000 years. The first study looked at hunter-gatherers and early farmers living in Iberia between 13,000 and 6,000 years ago. The second looked at individuals from the region over the last 8000 years. Together, the two papers greatly increase our knowledge about the population history of this unique region.


More vitamin D may improve memory but too much may slow reaction time



Posted: 14 Mar 2019 04:57 AM PDT


How much vitamin D can boost memory, learning and decision-making in older adults, and how much is too much? A unique study found that overweight and obese older women who took more than three times the recommended daily dose of vitamin D showed improvements in memory and learning -- but also had slower reaction times. The researchers hypothesize that slower reaction times may increase the risk of falling among older people.
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