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Showing posts from September, 2021

Early warning signals could help monitor disease outbreaks

New research suggests early warning signals (EWSs) could help in the monitoring of disease outbreaks, such as COVID-19. The study found warnings could be detected weeks earlier than any rapid increase in cases. The findings could help governments and policy makers improve the accuracy of their decisions and allow timely interventions if needed. from Top Health News -- ScienceDaily https://ift.tt/3DvxDk4 via IFTTT

Looking beyond DNA to see cancer with new clarity

Researchers have mapped out how hundreds of mutations involved in two types of cancer affect the activity of proteins that are the ultimate actors behind the disease. The work points the way to identifying new precision treatments that may avoid the side effects common with much current chemotherapy. from Top Health News -- ScienceDaily https://ift.tt/3A455fW via IFTTT

More effective treatment of Alzheimer’s

Researchers have designed new antibodies that might provide more effective treatment methods for Alzheimer's disease. By designing antibodies that bind even to the smaller aggregates, or clumps, of the amyloid-beta protein, it may be possible to check the progress of the disease. from Top Health News -- ScienceDaily https://ift.tt/3AXKxXB via IFTTT

AMD: Reading ability crucial indicator of functional loss

In geographic atrophy, a late form of age-related macular degeneration (AMD), reading ability is closely related to the altered retinal structure. Reading speed makes everyday functional impairment measurable, which the most common functional test in ophthalmology -- the best-corrected visual acuity assessment - cannot reflect. Retinal imaging can be used to assess loss of reading ability even when central visual acuity is still good. from Top Health News -- ScienceDaily https://ift.tt/3BcXD3v via IFTTT

Bioengineers develop new class of human-powered bioelectronics

A team of bioengineers has invented a novel soft and flexible self-powered bioelectronic device. The technology converts human body motions -- from bending an elbow to subtle movements such as a pulse on one's wrist -- into electricity that could be used to power wearable and implantable diagnostic sensors. from Top Health News -- ScienceDaily https://ift.tt/3zVQFyk via IFTTT

Most cases of never-smokers’ lung cancer treatable with mutation-targeting drugs

Despite smoking's well-known role in causing lung cancer, a significant number of patients who develop lung tumors have never smoked. While scientists are still working to understand what spurs cancer in so-called 'never-smokers,' a study suggests that 78% to 92% of lung cancers in patients who have never smoked can be treated with precision drugs already approved by the Food and Drug Administration to target specific mutations in a patient's tumor. from Top Health News -- ScienceDaily https://ift.tt/3imMSEb via IFTTT

New treatment for inflammatory bowel disease: Opioids may cure that 'bad gut feeling'

Opioid receptors play key roles in regulating our senses and emotions. Recently, their discovery outside the nervous system raised several questions about the effects of opioids on the immune system. Now, researchers have shown that KNT-127 -- a drug that targets delta opioid receptors -- can reduce pro-inflammatory signals in the colon. Their research highlights the immunomodulatory properties of opioids and indicates their therapeutic potential in inflammatory bowel disease and other related disorders. from Top Health News -- ScienceDaily https://ift.tt/3kWJYI7 via IFTTT

Study on African buffalo offers insights on persistence of highly contagious pathogens

A new study on foot-and-mouth disease among buffalo in South Africa could help explain how certain extremely contagious pathogens are able to persist and reach endemic stage in a population, long after they've burned through their initial pool of susceptible hosts. from Top Health News -- ScienceDaily https://ift.tt/3DfXVHt via IFTTT

Dynamic pregnancy intentions

A study found that pregnancy intentions often change over as short as a 12-month time period, and that they specifically vary with partner status, household income, and employment status. from Top Health News -- ScienceDaily https://ift.tt/3F4ASB1 via IFTTT

Signaling from neighboring cells provides power boost within axons

Nerve cells (neurons) send signals throughout the brain and the body along long processes called axons; these communication and information processes consume high levels of energy. A recent study shows that the support cells around axons provide a way to boost local energy production. The new findings help explain how long axons maintain sufficient energy levels and could have implications for the treatment of several neurological disorders, including Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis (ALS), linked to disruptions in axonal energy supply. from Top Health News -- ScienceDaily https://ift.tt/3mjG77s via IFTTT

New analytical technique helps researchers spot subtle differences in subcellular chemistry

Researchers can now rapidly isolate and chemically characterize individual organelles within cells. The new technique tests the limits of analytical chemistry and rapidly reveals the chemical composition of organelles that control biological growth, development and disease. from Top Health News -- ScienceDaily https://ift.tt/3kXNqSQ via IFTTT

Toxic DNA buildup in eyes may drive blinding macular degeneration

Damaging DNA builds up in the eyes of patients with geographic atrophy, an untreatable, poorly understood form of age-related macular degeneration that causes blindness, new research reveals. Based on the discovery, the researchers think it may be possible to treat the disease with common HIV drugs or an even safer alternative. from Top Health News -- ScienceDaily https://ift.tt/3oqeH2b via IFTTT

Getting beyond small talk: Study finds people enjoy deep conversations with strangers

People benefit from deep and meaningful conversations that help us forge connections with one another, but we often stick to small talk with strangers because we underestimate how much others are interested in our lives and wrongly believe that deeper conversations will be more awkward and less enjoyable than they actually are, according to new research. from Top Health News -- ScienceDaily https://ift.tt/3zV6mG2 via IFTTT

Breastfeeding status and duration significantly impact postpartum depression risk

A study of 29,685 American women finds postpartum depression (PPD) is a significant health issue, with nearly 13 percent of the sample being at risk. Results showed that women who were currently breastfeeding at the time of data collection had statistically significant lower risk of PPD than women who were not breastfeeding. There also was a statistically significant inverse relationship between breastfeeding length and risk of PPD. As the number of weeks that women breastfed increased, their PPD decreased. Surprisingly, there was no significant difference in PPD risk among women with varying breastfeeding intent (yes, no, unsure). from Top Health News -- ScienceDaily https://ift.tt/3kRwv4a via IFTTT

Extra spacing can boost children’s reading speed

A new study has found that a child's reading speed can be improved by simply increasing the space between letters within a piece of text. The study discovered that text with increased space between each letter provided a benefit to both dyslexic and non-dyslexic children. On average, the dyslexia group showed a 13% increase in reading speed, while the comparison group of non-dyslexic children showed a 5% increase in reading speed. from Top Health News -- ScienceDaily https://ift.tt/3iiWHCU via IFTTT

Scientists show that a novel therapy could be effective against pediatric leukemia

Researchers have developed a therapy that shows promise against a deadly pediatric leukemia. The small-molecule therapy was highly effective in fighting a type of acute myeloid leukemia in both in vitro and in vivo experiments, according to new research. from Top Health News -- ScienceDaily https://ift.tt/3AVq8m4 via IFTTT

New study suggests that aquaporin could be key to repairing corneal defects

Corneal defects often heal themselves, but serious injuries that are left untreated can result in inflammation, infection, ulceration and even blindness. A new study provides exciting evidence supporting the involvement of aquaporins in corneal cell proliferation and nerve regeneration and suggests aquaporin 5 (AQP5) induction as a potential therapy to accelerate the resurfacing of corneal defects, report scientists. from Top Health News -- ScienceDaily https://ift.tt/3meZ5Me via IFTTT

ECMO life support offers sickest COVID-19 patients a chance to survive, but a slimmer one than once thought

The life-support system called ECMO can rescue COVID-19 patients from the brink of death, but not at the rates seen early in the pandemic, a new study finds. Where once about 60 percent of such patients survived at least 90 days in spring 2020, by the end of the year it was just under half. from Top Health News -- ScienceDaily https://ift.tt/39NWQd9 via IFTTT

Understanding hearing loss from noise damage through gene expression changes

A team led by researchers has published an online interactive atlas representing the changes in the levels of RNA made in the different cell types of ears of mice, after damage due to loud noise. From this analysis, the research teams identified a handful of drug candidates that may be able to prevent or treat the damage, and ultimately preserve hearing. from Top Health News -- ScienceDaily https://ift.tt/3F2OeOa via IFTTT

How sepsis need not be fatal

Researchers have identified molecular biomarkers, pathways and immune cell dynamics associated with sepsis that could be therapeutically targeted to prevent the condition from leading to death. from Top Health News -- ScienceDaily https://ift.tt/3zTuGrC via IFTTT

New tool predicts changes that may make COVID variants more infectious

Researchers have created a novel framework that can predict with reasonable accuracy the amino-acid changes in the virus' spike protein that may improve its binding to human cells and confer increased infectivity to the virus. The tool could enable the computational surveillance of SARS-CoV-2 and provide advance warning of potentially dangerous variants with an even higher binding affinity potential. This can aid in the early implementation of public health measures to prevent the virus's spread and perhaps even may inform vaccine booster formulations. from Top Health News -- ScienceDaily https://ift.tt/2Y5T9NM via IFTTT

What are ideal blood sugar levels for preventing repeat strokes, heart attacks?

Blood sugar control has always been important for people with diabetes when it comes to preventing a stroke. But a new study finds for people with diabetes who have a stroke, there may be an ideal target blood sugar range to lower the risk of different types of vascular diseases like a stroke or heart attack later on. from Top Health News -- ScienceDaily https://ift.tt/3kTOyXo via IFTTT

Life expectancy gap between black and white Americans closes nearly 50 percent in 30 years

Persistent gaps in life expectancy between Black and white Americans have been highlighted by the COVID-19 pandemic. Yet, this gap has narrowed by nearly 50 percent in three decades, largely due to improvements among Black Americans, according to a new study. from Top Health News -- ScienceDaily https://ift.tt/3zUJI0l via IFTTT

Study suggests R rate for tracking pandemic should be dropped in favour of 'nowcasts'

When the COVID-19 pandemic emerged in 2020, the R rate became well-known shorthand for the reproduction of the disease. Yet a new study suggests it's time for 'A Farewell to R' in favour of a different approach based on the growth rate of infection rather than contagiousness. from Top Health News -- ScienceDaily https://ift.tt/3B7hqRT via IFTTT

Study links air pollution to nearly 6 million preterm births around the world

Air pollution likely contributed to almost 6 million premature births and almost 3 million underweight babies in 2019, according to a global burden of disease study and meta-analysis that quantifies the effects of indoor and outdoor pollution around the world. from Top Health News -- ScienceDaily https://ift.tt/3ofRm3h via IFTTT

Children do not understand concept of others having false beliefs until age 6 or 7

Understanding how others think, including the ability of other people to hold false beliefs, is important for social interaction. Called theory of mind, this ability has been thought to occur in children around age 4 years. New research suggests otherwise and shows that children do not understand others' false beliefs until age 6 or 7 years. Young children can pass theory-of-mind experiments using rudimentary concepts of seeing and knowing, without an understanding of mental representation. This work has implications for development and education. from Top Health News -- ScienceDaily https://ift.tt/3mqysnV via IFTTT

The vicious circle of high academic achievement

For some teenagers, the new school year means reuniting with their friends. For others, it means an increase in anxiety and in the pressure to succeed and get good grades. According to researchers, this can lead to perfectionism and, in turn, to anxiety and depression. from Top Health News -- ScienceDaily https://ift.tt/3oj9KbC via IFTTT

How high-fat diets allow cancer cells to go unnoticed

The immune system relies on cell surface tags to recognize cancer cells. Researchers discovered mice who ate high-fat diets produced less of these tags on their intestinal cells, suppressing the ability of immune cells to identify and eliminate intestinal tumors. The high-fat diet also reduced the presence of certain bacteria in the mice's gut, which normally helps maintain the production of these tags. from Top Health News -- ScienceDaily https://ift.tt/3ASw0wr via IFTTT

Tracking muscle activity with clothes on your back

Researchers have developed a bioelectrical sensor that is convenient and low-cost. The sensor measures electromyography signals that are generated in muscles when they contract and are useful for studying muscle fatigue and recovery, and they have the potential to inform diagnosis and treatment of neuromuscular diseases. The biosensor, made of silver paste with a layer of gold nanoparticles on top, is directly integrated onto a piece of clothing. The result was a detector that was both conductive and nonirritating to the skin. from Top Health News -- ScienceDaily https://ift.tt/3zRRRCA via IFTTT

Whole-heart computational modeling provides insights for individualized treatment

To pursue a better mechanistic understanding of ventricular arrhythmias, researchers are turning to whole-heart computational models, which are currently witnessing an evolution of a variety of computational approaches, especially within the realm of personalized technologies. They describe the progress using various computational approaches to address the mechanisms of cardiac dysfunction and issues related to the clinical application of computation-driven diagnostic and therapeutic approaches for cardiac disease and arrhythmias. from Top Health News -- ScienceDaily https://ift.tt/3ukON0S via IFTTT

Dynamic twists and loops can enable DNA to modulate its function

Supercoiling and looping can transmit mechanical stress along the DNA backbone that can promote the separation of the strands of the double helix at specific distant sites, exposing the DNA bases, which may facilitate repair, replication, transcription or other aspects of DNA function. from Top Health News -- ScienceDaily https://ift.tt/3EYelWB via IFTTT

Small but mighty: Microgreens go from trendy vegetables to functional food

Starting decades ago as fashionable, high-value gourmet greens, today microgreens have gained popularity among consumers for their nutritional profile and high content of antioxidant compounds. Now, a new study suggests that the tiny plants have the potential to help provide global nutrition security. from Top Health News -- ScienceDaily https://ift.tt/3EXwqUy via IFTTT

Plasmodium falciparum evolving to escape malaria rapid diagnostics in Africa

A major tool against malaria in Africa has been the use of rapid diagnostic tests, which have been part of the 'test-treat-track' strategy in Ethiopia, the second most-populated country in Africa. But researchers studying blood samples from more than 12,000 individuals in Ethiopia now estimate these tests missed nearly 10% of malaria cases caused by the parasite Plasmodium falciparum, the most common cause of malaria cases and deaths. from Top Health News -- ScienceDaily https://ift.tt/3mdRD4e via IFTTT

Past suffering can affect future praise

Researchers have discovered that people tend to give more praise to someone for their good deeds as an adult after discovering that person has also had to overcome adversity or suffering earlier in life, such as abuse and neglect as a child. from Top Health News -- ScienceDaily https://ift.tt/3uyhaJb via IFTTT

Reducing salt in bread without sacrificing taste

Most people in the U.S. consume too much salt; adult Americans typically eat twice the daily amount recommended by dietary guidelines. Bread may not seem like an obvious culprit; however, due to high consumption and relatively high salt content, baked goods are a major source of sodium in the diet. A new study from the explores ways to reduce sodium in bread without sacrificing taste and leavening ability. from Top Health News -- ScienceDaily https://ift.tt/3D9JoNt via IFTTT

Researchers identify mutations of Delta, Delta Plus variants

Using bioinformatics tools and programming, researchers identified five specific mutations that are far more prevalent in Delta Plus infections compared to Delta infections, including one mutation, K417N, that is present in all Delta Plus infections but not present in nearly any Delta infections. The findings provide important clues to researchers about the structural changes to the virus recently and highlight the need to expand the toolbox in the fight against COVID-19. from Top Health News -- ScienceDaily https://ift.tt/3ma378y via IFTTT

Magnetic stimulation of the brain can improve episodic memory, study finds

The ability to form episodic memories declines with age, certain dementias, and brain injury. However, a new study shows that low frequency repetitive transcranial magnetic stimulation delivered over the left prefrontal cortex of the brain can improve memory performance by reducing the power of low frequency brain waves as memories form. from Top Health News -- ScienceDaily https://ift.tt/3uiupgR via IFTTT

Living retina achieves sensitivity and efficiency engineers can only dream about

'Efficient coding theory' describes the most perfect, low-energy way to design a light-detecting device for a future camera or prosthetic retina. Or you could just look at a mammalian retina that's already organized this way. In a pair of papers on retinal structure, a team of neurobiologists has shown that the rigors of natural selection and evolution shaped our retinas to capture noisy data just as this theory of optimization would prescribe. from Top Health News -- ScienceDaily https://ift.tt/3EY3hsr via IFTTT

Intense workouts before bedtime won’t guarantee a good night’s rest, new research shows

A new meta-analysis assessed data from 15 published studies to see how a single session of intense exercise affects young and middle-aged healthy adults in the hours prior to bedtime. And while no two bodies are the same, the researchers did find that the combination of factors would interact to enhance or modulate the effects of exercise on sleep. from Top Health News -- ScienceDaily https://ift.tt/3CTvoXJ via IFTTT

Largest trial of antibiotic amoxicillin for treating chest infections in children finds little effect

The largest randomized placebo-controlled trial of the antibiotic amoxicillin for treating chest infections in children - one of the most common acute illnesses treated in primary care in developed countries, has found it is little more effective at relieving symptoms than the use of no medication from Top Health News -- ScienceDaily https://ift.tt/3AQTBxh via IFTTT

There’s no place like home…to track blood pressure

Adults with elevated blood pressure who had not been diagnosed with high blood pressure found that monitoring their blood pressure at home was more acceptable than going to a kiosk, clinic or using a 24-hour wearable monitoring device. Adults were more likely to record the minimum number of measurements with at-home or clinic-based blood pressure monitoring versus going to a kiosk. Adults found the 24-hour wearable blood pressure measuring device least acceptable among the options. Health care professionals should consider talking with people who have high blood pressure about the option of home monitoring and providing the tools and education necessary to do it correctly. from Top Health News -- ScienceDaily https://ift.tt/3AOoPoF via IFTTT

Children who eat more fruit and veggies have better mental health

New research finds that children who eat more fruit and veg have better mental health. The study is the first to investigate the association between fruit and vegetable intakes, breakfast and lunch choices, and mental wellbeing in UK school children. The research team studied data from almost 9,000 children in 50 schools. They found that the types of breakfast and lunch eaten by both primary and secondary school pupils were significantly associated with wellbeing. from Top Health News -- ScienceDaily https://ift.tt/3CY2WEl via IFTTT

Passage of recreational cannabis laws leads to some rise in use but not for all demographics

The U.S. is seeing an increased use of cannabis resulting from its legalization for recreational purposes. The findings showed that passage of the laws led to a rise in the odds of past-year and past-month cannabis use among individuals of Hispanic, Other and non-Hispanic whites compared to the period prior to enacting laws for recreational use. However, legalization did not lead to use more frequently, or cannabis use disorder among these groups. from Top Health News -- ScienceDaily https://ift.tt/3zPkqRl via IFTTT

N95 respirators could offer robust protection from wildfire smoke

N95 respirators offer the best protection against wildfire smoke and other types of air pollution, performing better than synthetic, cotton and surgical masks. N95s were so effective in the lab experiments that the researchers estimate their widespread use could reduce hospital visits attributable to wildfire smoke by 22% to 39%. from Top Health News -- ScienceDaily https://ift.tt/3kHrXxc via IFTTT

Drugs used by some Type 2 diabetics may lessen risk for severe COVID-19 outcomes, study suggests

A type of drug already used to treat obesity and Type 2 diabetes, when taken six months prior to the diagnosis of COVID-19, was associated with a decreased risk of hospitalization, respiratory complications and death in COVID-19 patients with Type 2 diabetes, according to researchers. from Top Health News -- ScienceDaily https://ift.tt/3uipBbh via IFTTT

Benefits of early intervention in autoimmune diseases

Complex autoimmune diseases affecting various organ systems remain one of the greatest medical challenges in spite of immense advances in treatment. In particular, the diffuse symptoms at the early stage of complex autoimmune diseases make it hard to diagnose the condition early on, which in turn delays treatment. A team of researchers has now demonstrated that treatment can be extremely effective if autoimmune diseases are treated as early as possible, even before the first clinical symptoms appear. from Top Health News -- ScienceDaily https://ift.tt/2Zs2EqC via IFTTT

Detecting dementia in the blood

Researchers want to image proteins with unprecedented precision -- and thus gain insights into the molecular pathogenesis of Alzheimer's. This should pave the way for an earlier diagnosis of the dementia disorder via a simple blood test. A successful pilot study has now been completed. from Top Health News -- ScienceDaily https://ift.tt/3zJ0U8V via IFTTT

Discovery of mechanics of drug targets for COVID-19

Researchers have discovered the working mechanism of potential drug targets for various diseases such as cancer, rheumatoid arthritis, and even COVID-19. The findings uncover the inner workings of cell receptors that are involved in cancer progression and inflammatory diseases. from Top Health News -- ScienceDaily https://ift.tt/3och0FX via IFTTT

COVID-19 pandemic has caused the biggest decrease in life expectancy since World War II, study finds

A dataset on mortality from 29 countries, spanning most of Europe, the United States and Chile, found that 27 countries saw reductions in life expectancy in 2020, and at a scale which wiped out years of progress on mortality. The large declines in life expectancy in the U.S. can partly be explained by the notable increase in mortality at working ages observed in 2020. from Top Health News -- ScienceDaily https://ift.tt/3AYnWKg via IFTTT

Hungry or full: It comes down to the atomic details

A protein - measuring just a few nanometers in size - acts as a molecular switch with a crucial role in determining whether we feel hungry or full. By determining of the protein's 3D structure, researchers were able to visualize the molecular structures of the hormones with which this protein -- melanocortin 4 receptor (MC4R) -- interacts. from Top Health News -- ScienceDaily https://ift.tt/3CVPEbv via IFTTT

Taking the guesswork out of genetic engineering

If necessity is the mother of invention, frustration is the father. When scientists kept running into aggravating problems with the existing tools and methods they were using to perform genetic engineering experiments, they decided to make better ones. They teamed up and created an integrated pipeline called STAMPScreen that combines novel algorithms, a new gene cloning technique, and powerful next-generation sequencing technology to help scientists get from a database to results quickly, easily, and frustration-free. from Top Health News -- ScienceDaily https://ift.tt/2Y3CQAW via IFTTT

Finger tracing enhances learning: Evidence for 100-year-old practice used by Montessori

A practice used by education pioneer Montessori in the early 1900s has received further validation, with studies showing that finger tracing makes learning easier and more motivating. Imagining an object after tracing it can generate even faster learning, for children and adults alike. from Top Health News -- ScienceDaily https://ift.tt/3EX5UdN via IFTTT

Healthy changes in diet, activity improved treatment-resistant high blood pressure

A healthy eating plan, weight loss and improved aerobic fitness can significantly reduce blood pressure and improve heart health in people with resistant hypertension -- a condition in which blood pressure remains high despite the use of three or more antihypertensive medications. from Top Health News -- ScienceDaily https://ift.tt/3oc2XAj via IFTTT

Guiding microbes along their path

The direction of movement of a microbe directly depends on the curvature of its environment, according to new findings. The researchers investigated the navigation of a model microbe, a small self-propelling microalga, in confined compartments with different shapes. They also developed theoretical models to predict the probability flux of that microswimmer which was confirmed by experiments. With this model available, it is now possible to pre-define the average trajectory of such microbes by manipulating the curvature of the compartments which directly affects their movement. from Top Health News -- ScienceDaily https://ift.tt/3kFVc3o via IFTTT

Wide heads help sperm swim together

Researchers used machine learning to discover that sperm with a wide head relative to length are more likely to clump together and swim collectively, a rare behavior that sometimes helps them reach an egg faster. The study provides a new method for understanding how form and function are related in cells with complex behaviors in all animals, including humans. from Top Health News -- ScienceDaily https://ift.tt/3i0GeU4 via IFTTT

Researchers define chain of events leading to dangerous intestinal disorder in preemies

A research team has provided what may be the most definitive view to date of the biological process leading to necrotizing enterocolitis (NEC), a dangerous inflammatory disease that can destroy a premature infant's intestinal lining and causes death in up to a third of the cases. from Top Health News -- ScienceDaily https://ift.tt/3lSmmTZ via IFTTT

Infection hinders blood vessel repair following traumatic brain or cerebrovascular injuries

Traumatic brain injury (TBI) and other injuries to blood vessels in the brain, like stroke, are a leading cause of long-term disability or death. Researchers have found a possible explanation for why some patients recover much more poorly from brain injury if they later become infected. from Top Health News -- ScienceDaily https://ift.tt/3i1QcVa via IFTTT

Novel small molecule potently attenuates neuroinflammation in brain and glial cells

In a preclinical study show that their small molecule drug, SRI-42127, can potently attenuate the triggers of neuroinflammation. These experiments in glial cell cultures and mice now open the door to testing SRI-42127 in models of acute and chronic neurological injury. from Top Health News -- ScienceDaily https://ift.tt/3kBakyX via IFTTT

Mapping words to colors

While the range of colors your eyes may perceive extends beyond the words language provides, languages around the globe are remarkably similar in how they partition the space of colors into a vocabulary. Yet differences exist. In a study examining 130 diverse languages around the world, researchers developed an algorithm to infer the communicative needs that different linguistic communities place on colors. from Top Health News -- ScienceDaily https://ift.tt/39w2uR1 via IFTTT

An estrogen receptor that promotes cancer also causes drug resistance

Cancer cells proliferate despite a myriad of stresses -- from oxygen deprivation to chemotherapy -- that would kill any ordinary cell. Now, researchers have gained insight into how they may be doing this through the downstream activity of a powerful estrogen receptor. The discovery offers clues to overcoming resistance to therapies like tamoxifen that are used in many types of breast cancer. from Top Health News -- ScienceDaily https://ift.tt/3o3nhUA via IFTTT

How tactile vibrations create illusions

Among the traditional five human senses, touch is perhaps the least studied. Yet, it is solicited everywhere, all the time, and even more so in recent years with the widespread daily use of electronic devices that emit vibrations. Indeed, any moving object transmits oscillatory signals that propagate through solid substrates. Our body detects them by means of mechanoreceptors located below the skin and transmits the information to the brain similarly to auditory, olfactory or visual stimuli. By studying how mice and humans perceive tactile vibrations, researchers discovered that the brain does not reliably perceive the frequency of a vibration when its amplitude varies. An illusory phenomenon is thereby created, which highlights how far our perception of the world around us can deviate from its physical reality. from Top Health News -- ScienceDaily https://ift.tt/3EL4MKq via IFTTT

How do migraines affect the sleep cycle?

Adults and children with migraines may get less quality, REM sleep time than people who don't have migraines. That's according to a meta-analysis. Children with migraines were also found to get less total sleep time than their healthy peers but took less time to fall asleep. from Top Health News -- ScienceDaily https://ift.tt/3EPtetU via IFTTT

Adults with neurologic conditions more likely to have experienced childhood trauma

Adults with neurologic conditions are more likely than the general population to have had adverse childhood experiences such as abuse, neglect or household dysfunction, according to a new study. The study does not prove that neurologic conditions are caused by such experiences. It only shows an association between the two. from Top Health News -- ScienceDaily https://ift.tt/3kz3Xwb via IFTTT

Adjusting fatty acid intake may help with mood variability in bipolar disorders

Can specific dietary guidelines help people living with bipolar disorders better manage their health? Clinical trial results showed that a diet designed to alter levels of specific fatty acids consumed by participants may help patients have less variability in their mood. from Top Health News -- ScienceDaily https://ift.tt/3zETyDk via IFTTT

How poxviruses multiply

Poxviruses have found a unique way of translating their genes into proteins in the infected organism. Scientists of the have been able to gain atomic-level insights into the functioning of the molecular machinery involved in the process. from Top Health News -- ScienceDaily https://ift.tt/2XKODUJ via IFTTT

'Second-hand' psychological stress can lead to depression in mice, finds study

Few studies have explored the effect of psychological stressors on behavior, and neurogenesis, in the context of depression. With the elucidation of a vicarious social defeat stress mouse model, scientists have successfully endeavored in connecting the dots between psychological stress and depression. from Top Health News -- ScienceDaily https://ift.tt/39usXhM via IFTTT

Sticking to low-fat dairy may not be the only heart healthy option, study shows

New research amongst the world's biggest consumers of dairy foods has shown that those with higher intakes of dairy fat - measured by levels of fatty acids in the blood - had a lower risk of cardiovascular disease compared to those with low intakes. Higher intakes of dairy fat were not associated with an increased risk of death. from Top Health News -- ScienceDaily https://ift.tt/2ZrXrzn via IFTTT

New guidelines to improve reporting standards of studies that investigate causal mechanisms

A new guideline has been developed to help scientists publish their research accurately and transparently. The AGReMA Statement (A Guideline for Reporting Mediation Analyses) provides recommendations for researchers who want to describe mediation analysis in their paper. Mediation analysis is primarily used to understand causation, ie how an intervention works or why it does not. from Top Health News -- ScienceDaily https://ift.tt/3zyLynl via IFTTT

Pioneering software can grow and treat virtual tumors using AI designed nanoparticles

The EVONANO platform allows scientists to grow virtual tumors and use artificial intelligence to automatically optimize the design of nanoparticles to treat them. The ability to grow and treat virtual tumors is an important step towards developing new therapies for cancer. Importantly, scientists can use virtual tumors to optimize design of nanoparticle-based drugs before they are tested in the laboratory or patients. from Top Health News -- ScienceDaily https://ift.tt/2ZrXATr via IFTTT

New research 'sniffs out' how associative memories are formed

Has the scent of freshly baked chocolate chip cookies ever taken you back to afternoons at your grandmother's house? Has an old song ever brought back memories of a first date? The ability to remember relationships between unrelated items (an odor and a location, a song and an event) is known as associative memory. from Top Health News -- ScienceDaily https://ift.tt/3lP7mpZ via IFTTT

Poorly circulated room air raises potential exposure to contaminants by up to six times

Having good room ventilation to dilute and disperse indoor air pollutants has long been recognized, and with the COVID-19 pandemic its importance has become all the more heightened. But new experiments show that certain circumstances will result in poor mixing of room air, meaning airborne contaminants may not be effectively dispersed and removed by building level ventilation. from Top Health News -- ScienceDaily https://ift.tt/2XKijRU via IFTTT

Children’s dislike of cauliflower, broccoli could be written in their microbiome

Many children, as well as adults, dislike Brassica vegetables, such as broccoli, cauliflower, cabbage and Brussels sprouts. In the mouth, enzymes from these vegetables and from bacteria in saliva can produce unpleasant, sulfurous odors. Now, researchers have found that levels of these volatile compounds are similar in parent-child pairs, suggesting shared oral microbiomes. They also found that high levels cause children to dislike the vegetables. from Top Health News -- ScienceDaily https://ift.tt/39sG5nz via IFTTT

Sonic hedgehog protein pathway stimulation could help Parkinson's patients

Levodopa, or L-dopa, is considered the most effective treatment for Parkinson's disease today. After a few years of treatment, however, almost all patients develop a debilitating side-effect called L-dopa induced dyskinesia, or LID, which causes involuntary movements in the limbs, face, and torso. Deep brain stimulation can alleviate LID, but the procedure is highly invasive and not all patients are eligible. from Top Health News -- ScienceDaily https://ift.tt/3EElkDL via IFTTT

Infants have more microplastics in their feces than adults

Microplastics -- tiny plastic pieces less than 5 mm in size -- are everywhere, from indoor dust to food to bottled water. So it's not surprising that scientists have detected these particles in the feces of people and pets. Now, in a small pilot study, researchers have discovered that infants have higher amounts of one type of microplastic in their stool than adults. Health effects, if any, are uncertain. from Top Health News -- ScienceDaily https://ift.tt/39szERr via IFTTT

A genetic brain disease reversed after birth

Researchers report that Kleefstra syndrome, a genetic disorder that leads to intellectual disability, can be reversed after birth in a mouse model of the disease. The series of experiments showed that postnatal treatment resulted in improved symptoms, both in the brain and in behavior. from Top Health News -- ScienceDaily https://ift.tt/3hXzrKG via IFTTT

New machine learning method to analyze complex scientific data of proteins

Scientists have developed a method using machine learning to better analyze data from a powerful scientific tool: nuclear magnetic resonance (NMR). One way NMR data can be used is to understand proteins and chemical reactions in the human body. NMR is closely related to magnetic resonance imaging (MRI) for medical diagnosis. from Top Health News -- ScienceDaily https://ift.tt/2XyFyxG via IFTTT

Regulator proteins or symphonies of genes: Statistical modeling points way toward unified theory for DNA folding

Researchers seek to point a way toward a unified theory for how DNA changes shape when expressing genes. The scientists use an approach called statistical mechanics to explore the phenomenon of so-called expression waves of gene regulation. The group hopes to reconcile a long-standing gulf between the two scientific fields most involved in the topic, using concepts common to biology and physics. from Top Health News -- ScienceDaily https://ift.tt/3hRCnIU via IFTTT

Which types of brain activity support conscious experiences?

Our subjective experience appears to us in a continuous stream of integrated information, and researchers now explore the question: Which characteristics should brain activity have to support this type of conscious experiences? The group searched for integrated structures that encompass most of the brain but change configuration from time to time. Their hypothesis was these structures should vanish during states of deep unconsciousness, such as deep sleep or while under general anesthetics. from Top Health News -- ScienceDaily https://ift.tt/3ksT0fq via IFTTT

Researchers use exosome-based strategy to block HIV in mice

Researchers used exosomes, tiny nanoparticles capable of being taken up by cells, to deliver novel protein into the cells of mice infected with HIV. The protein attached to HIVs' genetic material and prevented it from replicating, resulting in reduced levels of HIV in the bone marrow, spleen, and brain. The study paves the way for the development of novel delivery systems for suppressing HIV. from Top Health News -- ScienceDaily https://ift.tt/2ZefKrn via IFTTT

Scientists identify new therapeutic target in ovarian cancer subtype with poor prognosis

Mutations in the ARID1A gene are present in more than 50% of ovarian clear cell carcinomas (OCCC), for which effective treatments are lacking. Scientists discovered that loss of ARID1A function enhances a cellular stress response pathway that promotes survival of cancer cells, which become sensitive to pharmacological inhibition of this pathway. from Top Health News -- ScienceDaily https://ift.tt/3zuudfp via IFTTT

Nasal drugs show promise for slowing Parkinson’s disease progression in lab study

Researchers have shown that two lab-developed and nasally-delivered peptides helped slow the spread of alpha-synuclein in mice. 'If these results can be replicated in patients, it would be a remarkable advance in the treatment of devastating neurological disorders,' says the lead author. from Top Health News -- ScienceDaily https://ift.tt/3zAVugo via IFTTT

Darwin’s short-beak enigma solved

Biologists discovered that a mutation in the ROR2 gene is linked to beak size reduction in numerous breeds of domestic pigeons. Surprisingly, different mutations in ROR2 also underlie a human disorder called Robinow syndrome. The ROR2 signaling pathway plays an important role in the craniofacial development of all vertebrates. from Top Health News -- ScienceDaily https://ift.tt/2XxLNlm via IFTTT

Right program could turn immune cells into cancer killers

Cancer-fighting immune cells in patients with lung cancer whose tumors do not respond to immunotherapies appear to be running on a different 'program' that makes them less effective than immune cells in patients whose cancers respond to these immune treatments, suggests a new study. from Top Health News -- ScienceDaily https://ift.tt/3EB9udA via IFTTT

Mice’s learning skills help researchers pinpointing brain areas where acquired knowledge is stored

Is it a Rembrandt or a Vermeer? For lay people, it is often challenging to distinguish paintings by these two old masters. For the trained eye of an expert, on the other hand, it is not difficult at all. Scientists have now demonstrated that mice can also become experts in sorting images into categories. The study shows that part of the category knowledge is already present in early visual areas, highlighting how widespread such semantic memories are stored throughout the brain. from Top Health News -- ScienceDaily https://ift.tt/3CpGdRg via IFTTT

Antibiotic levels measurable in breath

A team of engineers and biotechnologists has shown in mammals that the concentration of antibiotics in the body can be determined using breath samples. The breath measurements also corresponded to the antibiotic concentrations in the blood. The team's biosensor -- a multiplex chip that allows simultaneous measurement of several specimens and test substances -- will in future enable personalized dosing of medicines against infectious diseases on-site and help to minimize the development of resistant strains of bacteria. from Top Health News -- ScienceDaily https://ift.tt/3nQfWHL via IFTTT

Access to essential cancer medicines unequal across countries

Patients in most countries of the world do not have access to basic cancer medicines, according to new research. Their article asked oncologists worldwide to list the most important cancer medicines and to describe whether patients could access these medicines in their home country. from Top Health News -- ScienceDaily https://ift.tt/3EHKvpc via IFTTT

Novel assay finds new mechanism underlying red blood cell aging

A multifaceted microfluidic in vitro assay is helping to identify the role of hypoxia on red blood cell aging via the biomechanical pathways. It holds promise for investigating hypoxic effects on the metastatic potential and relevant drug resistance of cancer cells. It also can be a useful tool to predict the mechanical performance of natural and artificial red blood cells for transfusion purposes and to further extend to red blood cells in other blood diseases and other cell types. from Top Health News -- ScienceDaily https://ift.tt/3nSsq1v via IFTTT

Japanese Knotweed extract could cut cancer risk of processed meat

Scientists have developed processed red meat that includes added natural substitutes which reduces the carcinogenic compound nitrite added to preserve meats. The range of sausages and hams had a mixture of plants and fruits added to them which included rosemary, green tea, and resveratrol -- an extract taken from Japanese Knotweed. from Top Health News -- ScienceDaily https://ift.tt/3EChWZY via IFTTT

More than 40% of adults with no known heart disease had fatty deposits in heart arteries

More than 40% of middle-aged adults with no known heart disease had signs of atherosclerosis, a buildup of fatty deposits that reduce blood flow to the heart, in a study of more than 25,000 adults in Sweden. In more than 5% of the people who had a buildup of fatty deposits, the atherosclerosis narrowed at least one artery by 50% or more. In nearly 2% of the people with artery deposits, the narrowing was so severe that blood flow was obstructed to large portions of the heart. from Top Health News -- ScienceDaily https://ift.tt/3AuNRZX via IFTTT

Students’ certainty about belonging and their performance in a STEM course reinforce each other – for better or worse

New research shows that belonging insecurity in a STEM course, specifically a first-year chemistry course, can affect a student's midterm scores, which can then feed back into the student's belonging uncertainty. For students in groups that are underrepresented in STEM, there's a danger that such a feedback loop could cause them to decide that science isn't for them, deterring potential scientists from even entering a STEM field. from Top Health News -- ScienceDaily https://ift.tt/3nRywiQ via IFTTT

Vaccinated groups who are at highest risk of COVID-19 hospitalization and death identified using new QCovid tool

Researchers report new findings on the vaccinated people who are at greatest risk from severe COVID-19 leading to hospitalization or death from 14 days post the second dose vaccination, when substantial immunity should be expected. By updating the QCovid tool, they are able to identify groups more at risk of hospitalization or death from COVID-19. from Top Health News -- ScienceDaily https://ift.tt/3lL0VnI via IFTTT

Lessons from how bats resist COVID could inform new treatments in humans

A new paper explores the idea that studying bats' responses to SARS-CoV-2 may provide key insights into how and when to best use existing therapies for COVID-19, and to develop new treatments. The paper is a major review of how the virus that has caused the current pandemic wreaks havoc on the human immune system. from Top Health News -- ScienceDaily https://ift.tt/3tXyUwU via IFTTT

Lack of trust exacerbates loneliness spiral

Loneliness is a painful feeling. If it persists, it can lead to mental illnesses such as depression or anxiety disorders. Researchers have now discovered how loneliness is associated with reduced trust. This is reflected in changes in the activity and interaction of various brain structures, especially the insular cortex. The results therefore provide clues for therapeutic options. from Top Health News -- ScienceDaily https://ift.tt/39mktt1 via IFTTT

How pruning the cytoskeleton moves the cell

Cells are characterized to be stable yet highly flexible. They constantly modify their shape and even move through tissue. These vital properties are based on a dynamically organized network of branched actin filaments, which generates pushing forces to move the cell membrane. An interdisciplinary team has now revealed a previously unknown mechanism, explaining how stopping the growth of older actin filaments within the network promotes the formation of new ones, thereby maintaining the structure and function of the cytoskeleton, much like proper pruning of hedges in the garden. from Top Health News -- ScienceDaily https://ift.tt/3tVJqot via IFTTT

How resistant germs transport toxins at molecular level

In order to counter the increasing threat posed by multi-drug resistant germs, we need to understand how their resistance mechanisms work. Transport proteins have an important role to play in this process. Scientists have now described the three-dimensional structure of transport protein Pdr5, found also in a similar form in pathogenic fungi. The results could help develop mechanisms to combat dangerous pathogens. from Top Health News -- ScienceDaily https://ift.tt/3nQ4wDL via IFTTT

Microbial plant bioprocessing – what can we learn from the cow?

The most significant sources of organic waste in South Africa is sugarcane bagasse (5.35 million metric tonnes), invasive plants (11.30 million metric tonnes) and fruit wastes (1.3 billion metric tonnes). Microbiologists from Stellenbosch University are investigation the use of mammalian rumen in the anaerobic digestive process to break down or separate organic waste into its original building blocks, from where it can subsequently be converted into various high-value products -- just as a cow does with processing the tough plant material into the basic building blocks upon which the production of milk is based. from Top Health News -- ScienceDaily https://ift.tt/3lEGQ2B via IFTTT

Modern simulations could improve MRIs

Rice University engineers improve simulations that analyze gadolinium-based contrast agents used in clinical magnetic resonance imaging. More efficient simulations could help make better compounds for imaging technologies. from Top Health News -- ScienceDaily https://ift.tt/3nXNNyi via IFTTT

Researchers call for a focus on fitness over weight loss for obesity-related health conditions

The prevalence of obesity around the world has tripled over the past 40 years, and, along with that rise, dieting and attempts to lose weight also have soared. But according to a new article, when it comes to getting healthy and reducing mortality risk, increasing physical activity and improving fitness appear to be superior to weight loss. The authors say that employing a weight-neutral approach to the treatment of obesity-related health conditions also reduces the health risks associated with yo-yo dieting. from Top Health News -- ScienceDaily https://ift.tt/3nKQ682 via IFTTT

How university students understand and demonstrate kindness

A small act of kindness can go a long way, especially say researchers, towards bolstering student health and wellness. A new study explores how the inclusion of a kindness assignment in an undergraduate course impacted student perceptions of themselves, their peers and their campus. from Top Health News -- ScienceDaily https://ift.tt/3EAmRL6 via IFTTT

Using internet in retirement boosts cognitive function

Scientists have studied the effect of internet usage on cognitive function. Examining more than 2000 retirees from 10 European countries, researchers found that, on average, retirees who used the internet were able to recall 1.22 extra words in a recall test compared to non-internet users (which equates to performing around 8 per cent better in the tests). The effects were more significant in women, with female retirees who used the internet able to recall an additional 2.37 words, than peers who did not go online. Results also showed that retirees who used the internet were more likely to be male, were younger and better educated, and had been retired for less time. They were also found to be in better health - despite drinking and smoking more. from Top Health News -- ScienceDaily https://ift.tt/3hOTVp4 via IFTTT

Augmented reality helps tackle fear of spiders

Researchers have developed an augmented reality app for smartphones in order to help people reduce their fear of spiders. The app has already shown itself to be effective in a clinical trial, with subjects experiencing less fear of real spiders after completing just a few training units with the app at home. from Top Health News -- ScienceDaily https://ift.tt/3EBYZqk via IFTTT

Meds, surgery may help obesity-related high blood pressure if diet, exercise fall short

Being overweight or having obesity, weight that is higher than what is considered healthy for an individual's height, is a major risk factor for high blood pressure. A healthy diet, more physical activity and less sedentary time are recommended to reduce blood pressure for people who are overweight or have obesity; however, evidence of long-term weight loss and sustained blood pressure reductions from these lifestyle changes is limited. New weight-loss medications and bariatric surgery have shown benefits in both long-term weight loss and improved blood pressure, which can reduce the long-term, negative impact of high blood pressure on organ damage. from Top Health News -- ScienceDaily https://ift.tt/3nV4Scx via IFTTT

Infants exposed to domestic violence have poorer cognitive development

Infants coming from homes with domestic violence often go on to have worse academic outcomes in school due to neurodevelopmental lags and a higher risk for a variety of health issues, including gastrointestinal distress, trouble eating and sleeping, as well as stress and illness. from Top Health News -- ScienceDaily https://ift.tt/3nJp3Kj via IFTTT

Brain microstructural damage related to cognitive dysfunction and steroid medication in lupus patients

Researchers attempted to unravel such mechanisms by adopting non-invasive diffusion magnetic resonance imaging (MRI) to study the brains of SLE patients, particularly the white matter, coupled with computerized neuropsychological assessment. White matter lies beneath the grey matter cortex in the human brain and comprises millions of bundles of nerve fibers that transmit signals to different brain regions. from Top Health News -- ScienceDaily https://ift.tt/3AoK5RY via IFTTT

Ancient DNA rewrites early Japanese history -- modern day populations have tripartite genetic origin

Researchers have extracted Ancient DNA from human bones to re-write early Japanese history by underlining that modern day populations in Japan have a tripartite genetic origin -- a finding that refines previously accepted views of a dual genomic ancestry. from Top Health News -- ScienceDaily https://ift.tt/3CuuRLX via IFTTT

Time until dementia symptoms appear can be estimated via brain scan

Researchers have developed an approach to estimating when a person who is at high risk of Alzheimer's dementia but has no cognitive symptoms will start showing signs of cognitive decline. The approach is based on data from a single brain scan, combined with the person's age. from Top Health News -- ScienceDaily https://ift.tt/2XtjOUr via IFTTT

Faster research through automation: New way to count micronuclei in cells

Researchers have created a novel automated program that accurately and quickly counts micronuclei in stained images. Micronuclei are small nucleus-like structures that are markers of pathologies such as cancer. The development of this automated program will be useful for future research into micronuclei and may aid in the diagnosis and tracking of a range of pathologies. from Top Health News -- ScienceDaily https://ift.tt/3hLpyQ2 via IFTTT

Treating infertility with drug-delivering microspheres

For an embryo to survive, it must attach to the lining of the uterus within days of conception. However, if this lining, called the endometrium, is too thin, the embryo can't latch on. Now, researchers have developed a new system intended to treat infertility in women with thin endometria. Their tiny, micro-scale particles stimulated blood vessel growth, producing promising results in preliminary experiments in cells and mice. from Top Health News -- ScienceDaily https://ift.tt/3nMHFcf via IFTTT

More intensive and personalized strategies may be needed for weight loss

Modest weight loss can lead to meaningful risk reduction in adults with obesity. Although both behavioral economic incentives and environmental change strategies have shown promise for initial weight loss, to date their efficacy alone or in combination have not been compared. from Top Health News -- ScienceDaily https://ift.tt/3kj8NO7 via IFTTT

Marching band kids at risk from heat illness

This time of year, you hear a lot about heat-related illnesses in athletes. Thousands of student-athletes are sidelined by heat illnesses each year, and some don't recover. But while guidelines exist to help coaches and trainers keep their students safe, there's another group on the field that's still at risk: students in marching bands. from Top Health News -- ScienceDaily https://ift.tt/3hG9fUG via IFTTT

Researchers improve optical tissue clearing method to diagnose cancer

The ability to visualize cancerous tumors and metastatic tissue three dimensionally (3D) can help clinicians diagnose the precise type and stage of cancer, while also informing the best treatment methods. To obtain an even clearer tissue for imaging, a research team based in Japan has tested the effectiveness of specialized hydrogels. Acting as a 3D molecular network, these hydrogels can rapidly remove fats from tissues, which are a factor in tissue opacification, without losing their structure. The material is used in several biomedical devices, including contact lenses. from Top Health News -- ScienceDaily https://ift.tt/3CiM3Uo via IFTTT

When organoids meet coronaviruses

Researchers established an organoid biobank to search for the genes that are essential for the spreading of a SARS-CoV2 infection. Their study highlights the usefulness of organoids for basic research into coronaviruses, as well as highlighting potential drug targets. from Top Health News -- ScienceDaily https://ift.tt/3nNf1bb via IFTTT

Study findings could provide blueprint for regulating lab-developed diagnostic tests

Diagnostic tests developed in-house in hospital laboratories are not currently regulated by the Food and Drug Administration (FDA), unlike those sold by manufacturers. A new study suggests that temporary deviations from FDA policy in response to the COVID-19 pandemic offer a look at what regulation of these tests by the agency might look like. Findings from this study could inform legislation aimed at regulating lab-developed tests. from Top Health News -- ScienceDaily https://ift.tt/2XzIp9Z via IFTTT

COVID-19 virus is evolving to get better at becoming airborne, new study shows

A new study finds that SARS-CoV-2 is evolving toward more efficient aerosol generation, and loose-fitting masks provide significant but only modest source control. Until vaccination rates are very high, continued layered controls, including improved ventilation, increased filtration, UV air sanitation, and tight-fitting masks are critical to protect people in public-facing jobs and indoor spaces, researchers urge. from Top Health News -- ScienceDaily https://ift.tt/3EnT1Jz via IFTTT

Changes to workplace cafeteria menus nudge workers to consume fewer calories

A study carried out at 19 workplace cafeterias has shown that reducing portion sizes and replacing higher calorie food and drinks with lower calorie options led to workers buying food and drink with fewer calories. Researchers say that even simple interventions such as these could contribute towards tackling levels of obesity. from Top Health News -- ScienceDaily https://ift.tt/3zlAJoy via IFTTT

Studies biased toward genomes of people with European ancestry still predict cancer risk in diverse groups, research finds

Data sets that are biased by having too many genomes from people with European ancestry can still be applied to other ancestry groups to predict their risk of developing breast and prostate cancer, researchers report. from Top Health News -- ScienceDaily https://ift.tt/39c6WnA via IFTTT

Scientists develop 'optimal strategies' computer model that could significantly reduce future COVID-19 infections and deaths

Scientists have developed a predictive computer model that, when tested on real pandemic data, proposed strategies that would have reduced the rate of both COVID-19 infections and deaths by an average of 72 per cent, based on a sample from four countries. from Top Health News -- ScienceDaily https://ift.tt/39f06xY via IFTTT

Elevated stress hormones linked to higher risk of high blood pressure and heart events

In a study of more than 400 adults with normal blood pressure, those who had high levels of stress hormones detected in their urine were more likely to develop high blood pressure over the next 6-7 years. Higher levels of the stress hormone cortisol were also linked to an increased risk of cardiovascular events, including heart attack and stroke. from Top Health News -- ScienceDaily https://ift.tt/3zeiGRh via IFTTT

Older age, chronic co-morbidities associated with more severe COVID disease in children

A recent study determined the factors associated with severe disease and poor health outcomes among children presenting to the hospital with COVID. These included older age and chronic co-morbidities such as obesity, diabetes and neurologic conditions, among others. from Top Health News -- ScienceDaily https://ift.tt/3AeEFZv via IFTTT

Scientists pinpoint the uncertainty of our working memory

The human brain regions responsible for working memory content are also used to gauge the quality, or uncertainty, of memories, a team of scientists has found. Its study uncovers how these neural responses allow us to act and make decisions based on how sure we are about our memories. from Top Health News -- ScienceDaily https://ift.tt/3lpVP0d via IFTTT