ScienceDaily: Top Health News

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• Study connects hormones we're born with to lifetime risk for immunological diseases
• Future autonomous machines may build trust through emotion
• A new approach to understanding the biology of wound healing
• Older people with early, asymptomatic Alzheimer's at risk of falls
• Scientists develop mathematical index to distinguish healthy microbiome from diseased
• Key role of immune cells in brain infection
• Real neurons are noisy: Can neural implants figure that out?
• Human white blood cells use molecular paddles to swim
• New dopamine sensors could help unlock the mysteries of brain chemistry
• People react better to both negative and positive events with more sleep
• To repair a damaged heart, three cells are better than one
• Risk gene for Alzheimer's has early effects on the brain
• The Wnt pathway gets even more complicated
• Rising temperatures could shift US West Nile virus transmission
• Teacher stress linked with higher risk of student suspensions
• Researchers use soy to improve bone cancer treatment
• Gender harassment and institutional betrayal in high school take toll on mental health
• Biologic therapy for psoriasis may reduce heart disease
• Two amino acids are the Marie Kondo of molecular liquid phase separation
• Glass tables can cause life-threatening injuries
• Cannabis farms are a modern slavery 'blind spot' for UK police, study suggests
• The two cultures within science outlined
• How the brain creates the experience of time
• Doctors get plenty of advice on starting treatment; this could help them know when to stop

Study connects hormones we're born with to lifetime risk for immunological diseases Posted: 15 Sep 2020 04:42 PM PDT Differences in biological sex can dictate lifelong disease patterns, says a new study by Michigan State University researchers that links connections between specific hormones present before and after birth with immune response and lifelong immunological disease development.

Future autonomous machines may build trust through emotion Posted: 15 Sep 2020 04:42 PM PDT Research has extended the state-of-the-art in autonomy by providing a more complete picture of how actions and nonverbal signals contribute to promoting cooperation. Researchers suggested guidelines for designing autonomous machines such as robots, self-driving cars, drones and personal assistants that will effectively collaborate with Soldiers.

A new approach to understanding the biology of wound healing Posted: 15 Sep 2020 12:24 PM PDT Researchers use discarded wound dressings as a novel and non-invasive way to study the mechanisms that promote healing.

Older people with early, asymptomatic Alzheimer's at risk of falls Posted: 15 Sep 2020 11:01 AM PDT Older people without cognitive problems who experience a fall may have undetected neurodegeneration in their brains that puts them at high risk of developing Alzheimer's dementia, according to a new study.

Scientists develop mathematical index to distinguish healthy microbiome from diseased Posted: 15 Sep 2020 11:01 AM PDT What causes some people to develop chronic diseases such as rheumatoid arthritis, cancer and metabolic syndrome while others stay healthy? A major clue could be found in their gut microbiome -- the trillions of microbes living inside the digestive system that regulate various bodily functions.

Key role of immune cells in brain infection Posted: 15 Sep 2020 10:31 AM PDT Researchers have identified the specific type of immune cell that induces brain inflammation in herpes simplex virus (HSV) encephalitis. Crucially, they have also determined the signalling protein that calls this immune cell into the brain from the bloodstream. The findings could aid the development of targeted treatments for the brain infection, which is the most common cause of viral encephalitis worldwide.

Real neurons are noisy: Can neural implants figure that out? Posted: 15 Sep 2020 10:31 AM PDT Signals sent from the retina to the brain have a lot of background noise, yet we see the world clearly. Researchers show that to achieve visual clarity the brain must accurately measure how this noise is distributed across neurons when processing the signals sent down the optic nerve. These results are likely to shape the design of future retinal prosthetics and other brain-machine interfaces.

Human white blood cells use molecular paddles to swim Posted: 15 Sep 2020 10:31 AM PDT Human white blood cells, known as leukocytes, swim using a newly described mechanism called molecular paddling, researchers report. This microswimming mechanism could explain how both immune cells and cancer cells migrate in various fluid-filled niches in the body, for good or for harm.

New dopamine sensors could help unlock the mysteries of brain chemistry Posted: 15 Sep 2020 10:31 AM PDT Scientists developed dLight1, a single fluorescent protein-based biosensor. This sensor allows high resolution, real-time imaging of the spatial and temporal release of dopamine in live animals. Now, the team expanded the color spectrum of dLight1 to YdLight1 and RdLight1. The increased light penetration and imaging depth of these variants provide enhanced dopamine signal quality allowing researchers to optically dissect dopamine's release and model its effects on neural circuits.

People react better to both negative and positive events with more sleep Posted: 15 Sep 2020 09:13 AM PDT New research finds that after a night of shorter sleep, people react more emotionally to stressful events the next day -- and they don't find as much joy in the good things. This has important health implications: previous research shows that being unable to maintain positive emotions in the face of stress puts people at risk of inflammation and even an earlier death.

To repair a damaged heart, three cells are better than one Posted: 15 Sep 2020 08:00 AM PDT CardioClusters use three types of cells to reduce scar tissue and improve function by integrating into and persisting within damaged heart tissue.

Risk gene for Alzheimer's has early effects on the brain Posted: 15 Sep 2020 08:00 AM PDT A genetic predisposition to late-onset Alzheimer's disease affects how the brains of young adults cope with certain memory tasks. Researchers find are based on studies with magnetic resonance imaging in individuals at the age of about 20 years. The scientists suspect that the observed effects could be related to very early disease processes.

The Wnt pathway gets even more complicated Posted: 15 Sep 2020 07:59 AM PDT A new role for Casein Kinase-1 on RNF43 is identified.

Rising temperatures could shift US West Nile virus transmission Posted: 15 Sep 2020 07:59 AM PDT West Nile virus spreads most efficiently in the US at temperatures between 24-25 degrees Celsius (75.2-77 degrees Fahrenheit), a new study shows.

Teacher stress linked with higher risk of student suspensions Posted: 15 Sep 2020 07:59 AM PDT Just how stressed are teachers? A recent Gallup poll found teachers are tied with nurses for the most stressful occupation in America today. Unfortunately, that stress can have a trickle-down effect on their students, leading to disruptive behavior that results in student suspensions.

Researchers use soy to improve bone cancer treatment Posted: 15 Sep 2020 06:01 AM PDT Researchers showed that the slow release of soy-based chemical compounds from a 3D-printed bone-like scaffold resulted in a reduction in bone cancer cells while building up healthy cells and reducing harmful inflammation.

Gender harassment and institutional betrayal in high school take toll on mental health Posted: 15 Sep 2020 06:01 AM PDT High school students who endure gender harassment in schools that don't respond well enter college and adulthood with potential mental health challenges, according to a study. Researchers found that 97 percent of women and 96 percent of men from a pool of 535 undergraduate college students had endured at least one incident during high school.

Biologic therapy for psoriasis may reduce heart disease Posted: 15 Sep 2020 06:01 AM PDT Biologic therapy for psoriasis - protein-based infusions to suppress inflammation - was associated with a significant reduction in high-risk plaque in heart arteries, over one-year, according to new research. The positive association between biologic therapy and a decrease in high-risk plaque in heart arteries was significant after adjusting for cardiovascular risk factors and psoriasis severity.

Two amino acids are the Marie Kondo of molecular liquid phase separation Posted: 15 Sep 2020 06:01 AM PDT Biologists have identified unique roles for the amino acids arginine and lysine in contributing to molecule liquid phase properties and their regulation.

Glass tables can cause life-threatening injuries Posted: 15 Sep 2020 06:01 AM PDT Faulty glass in tables can cause life-threatening injuries, according to a new study, which provides evidence that stricter federal regulations are needed to protect consumers.

Cannabis farms are a modern slavery 'blind spot' for UK police, study suggests Posted: 15 Sep 2020 06:01 AM PDT Migrants arrested for tending plants in the flats, houses and attics where cannabis is grown in bulk are often victims of trafficking and 'debt bondage' - yet many are not recognized as such by police, according to a new study.

The two cultures within science outlined Posted: 14 Sep 2020 01:07 PM PDT Researchers trace the outlines of two cultures within science, one of which promotes greater equity and inclusivity.

How the brain creates the experience of time Posted: 14 Sep 2020 10:19 AM PDT On some days, time flies by, while on others it seems to drag on. A new study from JNeurosci reveals why: time-sensitive neurons get worn out and skew our perceptions of time.

Doctors get plenty of advice on starting treatment; this could help them know when to stop Posted: 14 Sep 2020 08:59 AM PDT Decades of effort have improved the chances that patients will get the scans, routine tests and medicines that can do them the most good - and avoid the ones that won't help them at all. But in the push toward evidence-based medicine, a new study says, a key step has mostly gotten overlooked: helping doctors stop or scale back - or deintensify - treatment once it has started.

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