ScienceDaily: Top Health News


Muscle biopsy test for biomarker could lead to earlier diagnosis of ALS

Posted: 21 Jun 2022 03:45 PM PDT

Amyotrophic lateral sclerosis (ALS) is a progressive disease of the nervous system. It affects nerve cells in the brain and spinal cord called motor neurons. Motor neurons control muscle movement and ALS causes them to deteriorate and eventually die. The motor neurons lose the ability to send messages to the muscles in the body, affecting voluntary muscle movements. There have been recent advances in treating ALS, but current treatments can only slow disease progression. That is why it is important to diagnose ALS as early as possible.

Plant virus plus immune cell-activating antibody clear colon cancer in mice, prevent recurrence

Posted: 21 Jun 2022 03:44 PM PDT

A new combination therapy to combat cancer could one day consist of a plant virus and an antibody that activates the immune system's 'natural killer' cells, shows a new study. In mouse models of colon cancer, the combination therapy eliminated all tumors and prevented their recurrence, which in turn resulted in 100% survival. The therapy also increased survival in mouse models of melanoma.

How the brain interprets motion while in motion

Posted: 21 Jun 2022 12:51 PM PDT

New research provides insights into a neural mechanism involved in how the brain interprets sensory information. The research may have applications for treating brain disorders and designing artificial intelligence.

Scientists unravel genetic mystery of rare neurodevelopmental disorder, provide definitive diagnoses to 21 families worldwide

Posted: 21 Jun 2022 12:51 PM PDT

Scientists have discovered 15 additional genetic mutations in the KCNK9 gene that cause a neurodevelopmental syndrome. Symptoms of the disorder range from speech and motor impairment to behavioral abnormalities, intellectual disability and distinctive facial features.

Relationships are best between people of similar desirability, study finds

Posted: 21 Jun 2022 12:51 PM PDT

New research found that not only are people who are similarly desirable more likely to enter into a relationship, but they are also more likely to experience success within that relationship.

75% of teens aren't getting recommended daily exercise

Posted: 21 Jun 2022 11:18 AM PDT

Three out of every four teens aren't getting enough exercise, and this lack is even more pronounced among female students. But new research suggests improving a school's climate can increase physical activity among adolescents.

Study reveals smaller-than-expected percentage of research in psychology is truly multidisciplinary

Posted: 21 Jun 2022 11:18 AM PDT

Researchers examined scholarly articles for the years 2008-18 classified as 'Psychology, Multidisciplinary,' finding just 25% of citations referenced research published in fields outside psychology.

How tumors make immune cells 'go bad'

Posted: 21 Jun 2022 11:18 AM PDT

Investigators have discovered that cancerous tumors called soft-tissue sarcomas produce a protein that switches immune cells from tumor-attacking to tumor-promoting. The study could lead to improved treatments for soft-tissue sarcomas.

Pacific whiting skin has anti-aging properties that prevent wrinkles, research suggests

Posted: 21 Jun 2022 11:18 AM PDT

The gelatin in the skin of Pacific whiting, an abundant fish on the Pacific Coast of North America, may help prevent skin wrinkling caused by ultraviolet radiation, a new study found.

New safe-sleep guidelines aim to reduce infant deaths

Posted: 21 Jun 2022 11:18 AM PDT

There are 3,500 sleep-related infant deaths in the United States each year. Many of those deaths are preventable, and the authors of the new guidelines are urging parents to take simple steps to help keep their children safe.

Children who had bronchitis linked to adult lung problem

Posted: 21 Jun 2022 11:18 AM PDT

Study into the consequences of childhood infection finds Australian children who had bronchitis at least once before the age of seven were more likely to have lung problems in later life.

COVID-19 rebound after taking Paxlovid likely due to insufficient drug exposure, study finds

Posted: 21 Jun 2022 11:17 AM PDT

COVID-19 rebound following Paxlovid treatment likely due to insufficient drug exposure, researchers find after showing rebound patient did not show drug resistance or impaired immunity.

Walking gives the brain a 'step-up' in function for some

Posted: 21 Jun 2022 11:17 AM PDT

It has long been thought that when walking is combined with a task -- both suffer. Researchers have now found that this is not always the case. Some young and healthy people improve performance on cognitive tasks while walking by changing the use of neural resources.

SeqScreen can reveal 'concerning' DNA

Posted: 21 Jun 2022 11:17 AM PDT

Computer scientists have developed a program to screen short DNA sequences, whether synthetic or natural, to determine their toxicity.

Genetic mutations enable efficient evolution of TB-causing bacteria

Posted: 21 Jun 2022 08:47 AM PDT

Researchers have identified how the bacterium that causes tuberculosis (TB) can evolve rapidly in response to new environments.

High vaccination rates blunted Delta variant surge in some US states

Posted: 21 Jun 2022 08:47 AM PDT

A joint modelling initiative by nine teams predicted the U.S. surge of COVID-19 caused by the Delta variant of the SARS-CoV-2 virus in the summer of 2021, and found vaccination uptake to be critical to limiting transmission.

Vitamins, supplements are a 'waste of money' for most Americans

Posted: 21 Jun 2022 08:47 AM PDT

Scientists say for non-pregnant, otherwise healthy Americans, vitamins are a waste of money because there isn't enough evidence they help prevent cardiovascular disease or cancer. They've written an editorial in support of new recommendations that state there was 'insufficient evidence' that taking multivitamins, paired supplements or single supplements can help prevent cardiovascular disease and cancer in otherwise healthy, non-pregnant adults.

Global AFib study finds simple ablation has best outcomes

Posted: 21 Jun 2022 08:47 AM PDT

Results from one of the largest global studies of atrial fibrillation (AFib) procedures show that the simple approach is usually best when it comes to ablation, a procedure where physicians destroy or ablate cardiac tissue to correct irregular heart rhythms. Researchers found that using advanced image-guided technology to more aggressively target diseased areas of the heart that cause arrythmias didn't lead to better outcomes for patients -- and put some at higher risk of strokes, according to new results.

Females far likelier to suffer with Long COVID, a new review of studies shows, underscoring a critical need for sex-disaggregated research

Posted: 21 Jun 2022 06:14 AM PDT

A new study reveals that females are 'significantly' more likely to suffer from Long COVID than males and will experience substantially different symptoms.

Agriculture emissions pose risks to health and climate

Posted: 21 Jun 2022 06:14 AM PDT

Environmental engineers determine the economic cost of reactive nitrogen emissions from agriculture, and their significant risks to populations through air pollution and climate change.

Vital cell machinery behind the human body's incorporation of selenium observed

Posted: 20 Jun 2022 05:49 PM PDT

Scientists have determined the process for incorporating selenium -- an essential trace mineral found in soil, water and some foods that increases antioxidant effects in the body -- to 25 specialized proteins, a discovery that could help develop new therapies to treat a multitude of diseases from cancer to diabetes.

Lack of diversity of micro-organisms in the gut or elevated metabolite implicated in heart failure severity

Posted: 20 Jun 2022 05:49 PM PDT

Some people who experience heart failure have less biodiversity in their gut or have elevated gut metabolites, both of which are associated with more hospital visits and greater risk of death, according to a systematic review of research.

Who benefits from brain training and why?

Posted: 20 Jun 2022 09:23 AM PDT

If you are skilled at playing puzzles on your smartphone or tablet, what does it say about how fast you learn new puzzles, or, more broadly, how well you can focus, say, in school or at work? Or, in the language of psychologists, does 'near transfer' predict 'far transfer'? A team of psychologists has found that people who show near transfer are more likely to show far transfer.