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Showing posts from February, 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

Scientists identify cells responsible for liver tissue maintenance and regeneration

While the amazing regenerative power of the liver has been known since ancient times, the cells responsible for maintaining and replenishing the liver have remained a mystery. Now, research has identified the cells responsible for liver maintenance and regeneration while also pinpointing where they reside in the liver. from Top Health News -- ScienceDaily https://ift.tt/37UYQzN via IFTTT

64 human genomes as new reference for global genetic diversity

20 years after the successful completion of the Human Genome Project', an international research group has now sequenced 64 human genomes at high resolution. This reference data includes individuals from around the world, better capturing the genetic diversity of the human species. Among other applications, the work enables population-specific studies on genetic predispositions to human diseases as well as the discovery of more complex forms of genetic variation. from Top Health News -- ScienceDaily https://ift.tt/300oHSs via IFTTT

New signaling pathway in neurons

A new signaling pathway has been identified that can prevent the overproduction of certain RNA-protein complexes in neurons. These complexes play an important role in neurodegenerative diseases. from Top Health News -- ScienceDaily https://ift.tt/2Pp1ffL via IFTTT

Among Ecuador's Shuar, researchers find how disgust evolved as a human emotion

When the pungent smell of rotting food sends a person running, that disgusted feeling is an evolved response that helps avoid exposure to pathogens, say anthropologists. In a project that blended anthropology, biology and psychology, researchers explored disgust behaviors among Ecuador's indigenous Shuar people. from Top Health News -- ScienceDaily https://ift.tt/3q6JZZ4 via IFTTT

Biobattery-powered microneedle patch can deliver drugs and procure testing samples

A pain-free, organic and biodegradable drug delivery patch may be on the horizon for home health care patients soon. Researchers have developed a biobattery-powered device capable of both delivering large molecule pharmaceuticals across the skin barrier and extracting interstitial fluid for diagnostic purposes. from Top Health News -- ScienceDaily https://ift.tt/37XV1cX via IFTTT

Computer training to reduce trauma symptoms

Computer training applied in addition to psychotherapy can potentially help reduce the symptoms of post-traumatic stress disorder (PTSD). With the computerized training, the patients learned to appraise recurring and distressing trauma symptoms in a less negative light and instead to interpret them as a normal and understandable part of processing the trauma. from Top Health News -- ScienceDaily https://ift.tt/3uFni1J via IFTTT

Super-resolution RNA imaging in live cells

Ribonucleic acid (RNA) is key to various fundamental biological processes. It transfers genetic information, translates it into proteins or supports gene regulation. To achieve a more detailed understanding of the precise functions it performs, researchers have devised a new fluorescence imaging method which enables live-cell RNA imaging with unprecedented resolution. from Top Health News -- ScienceDaily https://ift.tt/3q6rzaS via IFTTT

Study identifies potential link between Soldiers exposed to blasts, Alzheimer's

Research shows that Soldiers exposed to shockwaves from military explosives are at a higher risk for developing Alzheimer's disease -- even those that don't have traumatic brain injuries from those blasts. A new study identifies how those blasts affect the brain. from Top Health News -- ScienceDaily https://ift.tt/3e2Oi5c via IFTTT

Benefits of team building exercises jeopardized if not truly voluntary

Zoom dress up parties, tug-of-war, 'trust falls' and escape rooms - team building exercises have become the go-to tool for managers trying to increase team rapport and productivity, but unfortunately many employees resent compulsory bonding and often regard these exercises as the bane of their workplace existence.  A paper published by Sydney researchers has found participants have mixed feelings about team-building interventions, with the research revealing ethical implications in forcing employees to take part. from Top Health News -- ScienceDaily https://ift.tt/37XU9VE via IFTTT

Targeted spraying to prevent malaria in low-transmission setting halves cost of current practice

Furthermore, the targeted Indoor Residual Spraying (IRS) intervention was safe, less costly, and more cost-effective compared with standard 'blanket' IRS, meaning savings could potentially be reallocated to other malaria control and elimination activities. from Top Health News -- ScienceDaily https://ift.tt/3pYwrPu via IFTTT

Social media use driven by search for reward, akin to animals seeking food

Our use of social media, specifically our efforts to maximize 'likes,' follows a pattern of 'reward learning,' concludes a new study by an international team of scientists. Its findings reveal parallels with the behavior of animals, such as rats, in seeking food rewards. from Top Health News -- ScienceDaily https://ift.tt/3pZe9NV via IFTTT

Measuring the tRNA world

Transfer RNAs (tRNAs) deliver specific amino acids to ribosomes during translation of messenger RNA into proteins. The abundance of tRNAs can therefore have a profound impact on cell physiology, but measuring the amount of each tRNA in cells has been limited by technical challenges. Researchers have now overcome these limitations with mim-tRNAseq, a method that can be used to quantify tRNAs in any organism and will help improve our understanding of tRNA regulation in health and disease. from Top Health News -- ScienceDaily https://ift.tt/3bHowAW via IFTTT

Exposure to diverse career paths can help fill labor market 'skills gap'

When Patrick Rottinghaus began college, he had no idea what he wanted to do with his career. He started out as an "Open" major while he explored possibilities. Today, he is helping young people eager to find their place in the world by identifying their strengths and connecting them with careers that match their skill-set, interests and personality. As the father of three children, including a daughter soon to enter high school, he wants to ensure they are equipped with the knowledge and skills to succeed as they prepare to enter the modern workforce. from Top Health News -- ScienceDaily https://ift.tt/2O7gPeZ via IFTTT

Genes identified that increase the risk of obesity but also protect against disease

Scientists have identified 62 genes that lead to both higher levels of body fat but a lower risk of cardiovascular and metabolic diseases. These genes may help to keep body fat healthy, and open a new avenue for developing drugs that lower the risk of diabetes and heart disease. from Top Health News -- ScienceDaily https://ift.tt/2ZReUy5 via IFTTT

A weak heart makes a suffering brain

Heart problems cause disturbed gene activity in the brain's memory center, from which cognitive deficits arise. Researchers at the DZNE come to this conclusion based on laboratory studies. They consider that they have found a possible cause for the increased risk of dementia in people with heart problems. from Top Health News -- ScienceDaily https://ift.tt/3sC8MpP via IFTTT

Under climate stress, human innovation set stage for population surge

Aridification in the central plains of China during the early Bronze Age did not cause population collapse, a result that highlights the importance of social resilience to climate change. Instead of a collapse amid dry conditions, development of agriculture and increasingly complex human social structures set the stage for a dramatic increase in human population around 3,900 to 3,500 years ago. from Top Health News -- ScienceDaily https://ift.tt/3sC8Tlf via IFTTT

Study finds short window for donating convalescent plasma to COVID-19 patients

The optimal timeframe for donating convalescent plasma for use in COVID-19 immunotherapy, which was given emergency use authorization by the Food and Drug Administration in August 2020, is within 60 days of the onset of symptoms, according to a new study. The research also reveals that the ideal convalescent plasma donor is a recovered COVID-19 patient who is older than 30 and whose illness had been severe. from Top Health News -- ScienceDaily https://ift.tt/2ZVrcWe via IFTTT

Mortality rises among public when health workers get sick in an outbreak, model suggests

When healthcare workers become ill during a disease outbreak, overall case counts and mortality rates may significantly increase, according to a new model. The findings may help to improve interventions that aim to mitigate the effects of outbreaks such as COVID-19. from Top Health News -- ScienceDaily https://ift.tt/3qYrPtW via IFTTT

What to do when a mammogram shows swollen lymph nodes in women just vaccinated for COVID

When women undergo breast imaging shortly after receiving a COVID-19 vaccine in the arm, their tests may show swollen lymph nodes in the armpit area. Radiologists say that this is usually a normal finding, and if there are no other concerns, no additional imaging tests are needed unless the lymph nodes remain swollen for more than six weeks after vaccination. The team has published an approach to help avoid delays in both vaccinations and breast cancer screening. from Top Health News -- ScienceDaily https://ift.tt/3aYJCf4 via IFTTT

Understanding the evolution of SARS and COVID-19 type viruses

As COVID-19 sweeps the world, related viruses quietly circulate among wild animals. A new study shows how SARS-CoV-2, the virus that causes COVID-19, and SARS-CoV-1, which caused the 2003 SARS outbreak, are related to each other. The work helps scientists better understand the evolution of these viruses, how they acquired the ability to infect humans and which other viruses may be poised for human spillover. from Top Health News -- ScienceDaily https://ift.tt/2NWKB6i via IFTTT

Novel pooled testing strategies can significantly better identify COVID-19 infections

A novel approach to pooled testing could help identify up to 20 times more COVID-19 infections per day than individual testing. Simple pooled designs could be implemented with minimal changes to current testing infrastructures in clinical and public health laboratories. from Top Health News -- ScienceDaily https://ift.tt/2NFl3L9 via IFTTT

'Miracle poison' for novel therapeutics

Researchers demonstrate they can engineer botulinum toxin proteins (called proteases) to find new targets with high selectivity, a critical advance toward potential new treatments for everything from neuroregeneration to cytokine storm. from Top Health News -- ScienceDaily https://ift.tt/3dM02Jx via IFTTT

Sulfur metabolism may have paved the way for evolution of multicellularity

When the slime mold Dictyostelium discoideum runs out of food, sulfur limitation drives its development from a unicellular to a multicellular organism. Researchers now present the nutrient signaling pathways in this early eukaryote in great detail. Their results show how metabolism may have played a crucial role in the origins of multicellularity. Moreover, the findings also have therapeutic implications for more complex organisms such as humans. Targeting sulfur metabolism in cancer cells may enhance anti-tumor immunity. from Top Health News -- ScienceDaily https://ift.tt/2NDpRAJ via IFTTT

Scientists capture the choreography of a developing brain

The formation of a brain is one of nature's most staggeringly complex accomplishments. The intricate intermingling of neurons and a labyrinth of connections also make it a particularly difficult feat for scientists to study. Now researchers have devised a strategy that allows them to see this previously impenetrable process unfold in a living animal -- the worm Caenorhabditis elegans. from Top Health News -- ScienceDaily https://ift.tt/3uAfhv8 via IFTTT

Southern California COVID-19 strain rapidly expands global reach

A new strain of the coronavirus in Southern California is rapidly spreading across the country and around the world as travelers apparently carry the virus with them to a growing list of global destinations, according to new research. The strain now accounts for nearly half of current COVID-19 cases in Southern California. from Top Health News -- ScienceDaily https://ift.tt/3bDhX27 via IFTTT

Mechanism by which exercise strengthens bones and immunity

Scientists have identified the specialized environment, known as a niche, in the bone marrow where new bone and immune cells are produced. The study also shows that movement-induced stimulation is required for the maintenance of this niche, as well as the bone and immune-forming cells that it contains. Together, these findings identify a new way that exercise strengthens bones and immune function. from Top Health News -- ScienceDaily https://ift.tt/3klMZzJ via IFTTT

How to neutralize the SARS-CoV-2 virus

In the absence of effective treatments for COVID-19, many countries have approved the therapeutic use of blood plasma from recovering patients because it contains antibodies against the coronavirus. But not every type of antibody can neutralize the virus and render it noninfectious. New research explores variation in virus neutralization capabilities, which can vary widely by type of antibody. from Top Health News -- ScienceDaily https://ift.tt/2ZS4pKW via IFTTT

Atheists and believers both have moral compasses, but with key differences

A new study suggests that, while atheists and theists share moral values related to protecting vulnerable individuals, atheists are less likely to endorse values that promote group cohesion and more inclined to judge the morality of actions based on their consequences. from Top Health News -- ScienceDaily https://ift.tt/3aQSsvg via IFTTT

After spread, travel bans are of limited value in thwarting the spread of COVID-19, researchers find

New research aimed at providing a decision support system to Italian policy makers suggests that reducing individual activity (i.e., social distancing, closure of non-essential business, etc.) is far superior in controlling the dissemination of SARS-CoV-2, the virus that causes COVID-19. from Top Health News -- ScienceDaily https://ift.tt/3svB1Gj via IFTTT

Reclusive neutron star may have been found in famous supernova

Since astronomers captured the bright explosion of a star on February 24, 1987, researchers have been searching for the squashed stellar core that should have been left behind. A group of astronomers using data from NASA space missions and ground-based telescopes may have finally found it. from Top Health News -- ScienceDaily https://ift.tt/3qTIvCD via IFTTT

People with SARS-CoV-2 antibodies may have low risk of future infection, study finds

People who have had evidence of a prior infection with SARS-CoV-2, the virus that causes COVID-19, appear to be well protected against being reinfected with the virus, at least for a few months, according to a new study. This finding may explain why reinfection appears to be relatively rare, and it could have important public health implications. from Top Health News -- ScienceDaily https://ift.tt/3aPZiRC via IFTTT

Measuring hemoglobin levels with AI microscope, microfluidic chips

A complete blood count can help ascertain the health of a patient and typically includes an estimate of the hemoglobin concentration, which can indicate several conditions, including anemia, polycythemia, and pulmonary fibrosis. Researchers describe a AI-powered imaging-based tool to estimate hemoglobin levels. The setup was developed in conjunction with a microfluidic chip and an AI-powered automated microscope that was designed for deriving the total as well as differential counts of blood cells. from Top Health News -- ScienceDaily https://ift.tt/3qReAv7 via IFTTT

COVID-19: Future targets for treatments rapidly identified with new computer simulations

Researchers have detailed a mechanism in the distinctive corona of COVID-19 that could help scientists to rapidly find new treatments for the virus, and quickly test whether existing treatments are likely to work with mutated versions as they develop. from Top Health News -- ScienceDaily https://ift.tt/37uCSU5 via IFTTT

Deep learning may help doctors choose better lung cancer treatments

Researchers have developed a deep learning model that, in certain conditions, is more than 71 percent accurate in predicting survival expectancy of lung cancer patients, significantly better than traditional machine learning models that the team tested. The other machine learning models the team tested had about a 61 percent accuracy rate. from Top Health News -- ScienceDaily https://ift.tt/3k27lxN via IFTTT

Preschoolers with higher cardiorespiratory fitness do better on cognitive tests

Researchers report that 4-6-year-old children who walk further than their peers during a timed test - a method used to estimate cardiorespiratory health - also do better on cognitive tests and other measures of brain function. The study suggests that the link between cardiorespiratory fitness and cognitive health is evident even earlier in life than previously appreciated. from Top Health News -- ScienceDaily https://ift.tt/3bgJhDg via IFTTT

Cell-free DNA in urine as potential method for cancer detection

What if a simple urine sample could detect cancer in its very earliest stages when the disease responds more favorably to treatment and improved outcomes are more likely? That was the question posed by scientists who have found a way of zeroing in on early-stage cancer by analyzing short strands of cell-free DNA in urine. from Top Health News -- ScienceDaily https://ift.tt/37udPjK via IFTTT

UK hospital admissions for food-induced anaphylaxis triple over 20 year period but death rate falls

The rate of people who are admitted to hospital in the UK due to a serious allergic reaction (anaphylaxis) caused by food has more than tripled over a 20-year period. Despite this, the death rate from food-induced anaphylaxis halved over the same period, according to new research. from Top Health News -- ScienceDaily https://ift.tt/2Zt6bC1 via IFTTT

Cone snail venom shows potential for treating severe malaria

Using venom from a cone snail, a new study suggests these conotoxins may potentially treat malaria. The study provides important leads toward the development of new and cost-effective anti-adhesion or blockade-therapy drugs aimed at counteracting the pathology of severe malaria. Similarly, mitigation of emerging diseases like COVID-19 also could benefit from conotoxins as potential inhibitors of protein-protein interactions as treatment. Venom peptides from cone snails has the potential to treat myriad diseases using blockage therapies. from Top Health News -- ScienceDaily https://ift.tt/2OMbgTD via IFTTT

Impact of COVID-19 in Africa 'vastly underestimated', warn researchers

The impact of COVID-19 in Africa has been vastly underestimated, warn researchers in a new study that showed that COVID-19 deaths accounted for 15 to 20 percent of all sampled deaths -- many more than official reports suggest and contradicting the widely held view that COVID-19 has largely skipped Africa and had little impact. from Top Health News -- ScienceDaily https://ift.tt/2OIIF1y via IFTTT

Damage to the heart found in more than half of COVID-19 patients discharged from hospital

Around 50 percent of patients who have been hospitalized with severe COVID-19 and who show raised levels of a protein called troponin have damage to their hearts. The injury was detected by magnetic resonance imaging (MRI) scans at least a month after discharge, according to new findings. from Top Health News -- ScienceDaily https://ift.tt/3u6pVtf via IFTTT

Radiological images confirm 'COVID-19 can cause the body to attack itself'

Muscle soreness and achy joints are common symptoms among COVID-19 patients. But for some people, symptoms are more severe, long lasting and even bizarre, including rheumatoid arthritis flares, autoimmune myositis or 'COVID toes.' A new has confirmed and illustrated the causes of these symptoms through radiological imaging. from Top Health News -- ScienceDaily https://ift.tt/2Zr6cWW via IFTTT

Gut microbiome implicated in healthy aging and longevity

The gut microbiome is an integral component of the body, but its importance in the human aging process is unclear. Researchers have identified distinct signatures in the gut microbiome that are associated with either healthy or unhealthy aging trajectories, which in turn predict survival in a population of older individuals. from Top Health News -- ScienceDaily https://ift.tt/3dsibLZ via IFTTT

The original antigenic sin: How childhood infections could shape pandemics

A child's first influenza infection shapes their immunity to future airborne flu viruses - including emerging pandemic strains. But not all flu strains spur the same initial immune defense, according to new findings published today. The results are relevant to the COVID-19 pandemic, according to the senior author, who says they may explain age-based distributions of SARS-CoV-2 disease severity and susceptibility. from Top Health News -- ScienceDaily https://ift.tt/3bdErqo via IFTTT

Real-time dialogue with a dreaming person is possible

Dreams take us to what feels like a different reality. They also happen while we're fast asleep. So, you might not expect that a person in the midst of a vivid dream would be able to perceive questions and provide answers to them. But a new study shows that, in fact, they can. from Top Health News -- ScienceDaily https://ift.tt/2NhGKkg via IFTTT

Never-before-seen antibody binding, informing liver cancer, antibody design

In structural biology, some molecules are so unusual they can only be captured with a unique set of tools. That's precisely how a team defined how antibodies can recognize a compound called phosphohistidine -- a highly unstable molecule that has been found to play a central role in some forms of cancer. from Top Health News -- ScienceDaily https://ift.tt/3jYs0Tj via IFTTT

3D microscopy clarifies understanding of body's immune response to obesity

Researchers who focus on fat know that some adipose tissue is more prone to inflammation-related comorbidities than others, but the reasons why are not well understood. Thanks to a new analytical technique, scientists are getting a clearer view of the microenvironments found within adipose tissue associated with obesity. This advance may illuminate why some adipose tissues are more prone to inflammation - leading to diseases like type 2 diabetes, cancer and cardiovascular disorders - and help direct future drug therapies to treat obesity. from Top Health News -- ScienceDaily https://ift.tt/2ZqUHyH via IFTTT

Do sweat it! Wearable microfluidic sensor to measure lactate concentration in real time

Lactate, a compound present in sweat, is an important biomarker to quantify during exercise. However, available wearable sensors can cause skin irritation, which calls for the use of different materials. In a recent study, scientists have developed a soft and nonirritating microfluidic sensor for the real-time measurement of lactate concentration in sweat. This wearable device will help monitor the state of the body during intense physical exercise or work. from Top Health News -- ScienceDaily https://ift.tt/3s3pX33 via IFTTT

Fish diet heats up marine biodiversity hotspot

A never-before-seen biodiversity pattern of coral reef fishes suggests some fishes might be exceptionally vulnerable to environmental change. It highlights, for the first time, a unique link between the diet and distribution of species across the marine realm. from Top Health News -- ScienceDaily https://ift.tt/3poSkak via IFTTT

You snooze, you lose - with some sleep trackers

Wearable sleep tracking devices - from Fitbit to Apple Watch to never-heard-of brands stashed away in the electronics clearance bin - have infiltrated the market at a rapid pace in recent years. And like any consumer products, not all sleep trackers are created equal, according to neuroscientists. from Top Health News -- ScienceDaily https://ift.tt/2M1wGeH via IFTTT

Study links prolonged sedentary time to distractibility in adults with obesity, overweight

Scientists used accelerometers to track daily activity levels for a week in 89 adults with obesity or overweight and, in a series of tests, measured their ability to multitask and maintain their attention despite distractions. The study revealed that individuals who spent more sedentary time in bouts lasting 20 minutes or more were less able to overcome distractions. from Top Health News -- ScienceDaily https://ift.tt/3be6IgD via IFTTT

Human immune system: Structure of essential protein

A research group has succeeded in understanding why a very extended structure is important for an essential protein from the human immune system. The new results offer new opportunities for adjusting the activity of the immune system both up and down. Stimulation is interesting in relation to cancer treatment, while inhibition of the immune system is used in treatment of autoimmune diseases. from Top Health News -- ScienceDaily https://ift.tt/3qwQu8y via IFTTT

One in five has a mutation that provides superior resilience to cold

Almost one in five people lacks the protein alpha-actinin-3 in their muscle fiber. Researchers now show that more of the skeletal muscle of these individuals comprises slow-twitch muscle fibers, which are more durable and energy-efficient and provide better tolerance to low temperatures than fast-twitch muscle fibers. from Top Health News -- ScienceDaily https://ift.tt/2Zq55H4 via IFTTT

Making swimming pools safer by reducing chlorine disinfection byproducts

Swimming in indoor or outdoor pools is a healthy form of exercise and recreation for many people. However, studies have linked compounds that arise from chlorine disinfection of the pools to respiratory problems, including asthma, in avid swimmers. Now, researchers have found that using a complementary form of disinfection, known as copper-silver ionization (CSI), can decrease disinfection byproducts and cell toxicity of chlorinated swimming pool water. from Top Health News -- ScienceDaily https://ift.tt/2M279ly via IFTTT

Combination treatment for common glioma type shows promise in mice

Gliomas are common brain tumors that comprise about one third of all cancers of the nervous system. Researchers tested a novel combination treatment approach on mice with tumors with characteristics similar to human astrocytomas and found tumor regression in 60 percent of the mice treated. These encouraging results could be the first step toward developing a treatment for this type of brain cancer. from Top Health News -- ScienceDaily https://ift.tt/3biVTtL via IFTTT

Variation in intensity of fracture-associated prescription drug use

A new study reveals that there is substantial variation across different regions of the country in the intensity of fracture-associated drug use among long-term care residents, and that areas with greater use of these prescription drugs experience higher fracture rates. from Top Health News -- ScienceDaily https://ift.tt/3jVOSmi via IFTTT

Challenge to anorexia nervosa treatment guidelines

New analysis has shown a lack of strong evidence to support current guidance on psychological therapies for treating anorexia nervosa over expert treatment as usual. The findings highlight a need for further research and support a call for individual trial data to be made available so the benefits of treatments in specific patient populations can be better understood. from Top Health News -- ScienceDaily https://ift.tt/3bhYUuf via IFTTT

Antibody-based COVID-19 treatments work best in concert with immune cells

Antibody-based drugs have been authorized for emergency use in COVID-19 patients by the Food and Drug Administration. Researchers have discovered that the ability to interact with other elements of the immune system is an indispensable part of the effectiveness of such antibodies. The findings could help improve the design of the next generation of antibody-based COVID-19 drugs. from Top Health News -- ScienceDaily https://ift.tt/3bi254S via IFTTT

Genetic study of Lewy body dementia supports ties to Alzheimer's and Parkinson's diseases

Scientists found that five genes may play a critical role in determining whether a person will suffer from Lewy body dementia, a devastating disorder that riddles the brain with clumps of abnormal protein deposits called Lewy bodies. The results also supported the disorder's ties to Parkinson's and Alzheimer diseases. from Top Health News -- ScienceDaily https://ift.tt/2NCNvx2 via IFTTT

Early step toward leukemia drug therapy

The team has discovered that for acute myeloid leukemia (AML) patients, there is a dopamine receptor pathway that becomes abnormally activated in the cancer stem cells. This inspired the clinical investigation of a dopamine receptor-inhibiting drug thioridazine as a new therapy for patients, and their focus on adult AML has revealed encouraging results. from Top Health News -- ScienceDaily https://ift.tt/3diJoRt via IFTTT

Asthma may heighten flu risk and cause dangerous mutations

A subtype of asthma in adults may cause higher susceptibility to influenza and could result in dangerous flu mutations. Animal studies have found that paucigranulocytic asthma (PGA) - a non-allergic form of the condition - allows the flu virus to flourish in greater numbers in sufferers. from Top Health News -- ScienceDaily https://ift.tt/37D3and via IFTTT

Health survey conveys messages on how we should live

The questions in a health survey aimed at young people raise issues of status and convey norms about what people should own and how they should be. Since the 1980s, the physical and mental health of Swedish children and young people has been measured by way of surveys. One of these is the international "Health Behavior in School-aged Children Survey" which is taken by 11-, 13- and 15-year-olds every fourth year during a class in school. from Top Health News -- ScienceDaily https://ift.tt/37ol8JY via IFTTT

Cataracts: New model explains origins of the eye condition

Cataracts are the most common eye ailment in humans. However, the exact processes leading to this condition are not fully understood. A team of researchers has now discovered that the composition of the protein solution plays a decisive role. Their conclusions are contrary to prevailing opinion in the field. from Top Health News -- ScienceDaily https://ift.tt/3jTQwou via IFTTT

The body produces new satiety factor during prolonged exercise

Researchers confirm that the hormone GDF15 is released in response to vigorous exercise, but likely not in sufficient quantity to affect behavior or appetite. These findings add nuance to a hormone that is currently under scrutiny for its potential as an anti-obesity medication. from Top Health News -- ScienceDaily https://ift.tt/3aqrbzp via IFTTT

Alligator hearts keep beating no matter what

A new study finds that an alligator heart will not fibrillate when exposed to drastic temperature changes, unlike a rabbit (mammal) heart, which is critically vulnerable to heart trauma under those conditions. The research could help better understand how the heart works and what can cause a deadly arrhythmia - which fundamentally happens when the heart doesn't pump blood correctly any longer. from Top Health News -- ScienceDaily https://ift.tt/3u6rszu via IFTTT

Unlocking the mystery behind skeletal aging

Researchers have identified the role a critical enzyme plays in skeletal aging and bone loss, putting them one step closer to understanding the complex biological mechanisms that lead to osteoporosis, the bone disease that afflicts some 200 million people worldwide. Findings could hold an important key to developing more effective treatments for osteoporosis and improving the lives of an aging population. from Top Health News -- ScienceDaily https://ift.tt/3k1Rsra via IFTTT

Researchers develop algorithm to find possible misdiagnosis

Researchers have developed an algorithm that can identify patients who may have been wrongly diagnosed. With the help of digital disease history, the algorithm is able to register disease trajectories that differ so much from normal trajectories that there may be a misdiagnosis. The algorithm has been developed on the basis of data from several hundreds of thousands of COPD patients. from Top Health News -- ScienceDaily https://ift.tt/3qpXCDG via IFTTT

Photosynthetic bacteria-based cancer optotheranostics

Natural purple photosynthetic bacteria (PPSB) can play a key role as a highly active cancer immunotheranostics agent that uses the bio-optical-window I and II near-infrared (NIR) light. PPSB have high tumor specificity and non-pathogenicity. Active anticancer efficacy and powerful multi-functions such as NIR-I-to-NIR-II fluorescence, photothermal conversion, reactive oxygen species generation, and contrasty photoacoustic effect, can be expressed using NIR light exposure to PPSB. from Top Health News -- ScienceDaily https://ift.tt/3bfyDwm via IFTTT

Answer quickly to be believed

When people pause before replying to a question, even for just a few seconds, their answers are perceived to be less sincere and credible than if they had replied immediately, according to new research. from Top Health News -- ScienceDaily https://ift.tt/2N2jPcJ via IFTTT

TB study reveals potential targets to treat and control infection

Researchers may have found a new pathway to treat and control tuberculosis (TB), the disease caused by Mycobacterium tuberculosis (Mtb). Using single-cell RNA sequencing (scRNAseq), a next-generation sequencing technology, scientists were able to further define the mechanisms that lead to TB infection and latency. from Top Health News -- ScienceDaily https://ift.tt/2LUjtEg via IFTTT

Large-scale study finds genetic testing technology falsely detects very rare variants

A technology that is widely used by commercial genetic testing companies is 'extremely unreliable' in detecting very rare variants, meaning results suggesting individuals carry rare disease-causing genetic variants are usually wrong, according to new research. from Top Health News -- ScienceDaily https://ift.tt/3pjPjIk via IFTTT

New surgery may enable better control of prosthetic limbs

Researchers and surgeons have devised a new type of amputation surgery that can help amputees better control their residual muscles and receive sensory feedback. This restored sense of proprioception should translate to better control of prosthetic limbs, as well as reduction of limb pain, the researchers say. from Top Health News -- ScienceDaily https://ift.tt/3pjzTDL via IFTTT

Cheap, potent pathway to pandemic therapeutics

By capitalizing on a convergence of chemical, biological and artificial intelligence advances, scientists have developed an unusually fast and efficient method for discovering tiny antibody fragments with big potential for development into therapeutics against deadly diseases. from Top Health News -- ScienceDaily https://ift.tt/3an0k7p via IFTTT

New immunotherapy target discovered for malignant brain tumors

Scientists say they have discovered a potential new target for immunotherapy of malignant brain tumors, which so far have resisted the ground-breaking cancer treatment based on harnessing the body's immune system. The discovery emerged from laboratory experiments and has no immediate implications for treating patients. from Top Health News -- ScienceDaily https://ift.tt/3jRPBVx via IFTTT

Immunotherapy -- targeted drug combination improves survival in advanced kidney cancer

Patients with advanced kidney cancer, who received a targeted drug combined with a checkpoint-blocker immunotherapy agent had longer survival than patients treated with the standard targeted drug according to the results from a phase 3 clinical trial. from Top Health News -- ScienceDaily https://ift.tt/2Zjxsqe via IFTTT

Implant improves balance, movement and quality of life for people with inner ear disorder

Researchers have shown that they can facilitate walking, relieve dizziness and improve quality of life in patients with BVH by surgically implanting a stimulator that electrically bypasses malfunctioning areas of the inner ear and partially restores the sensation of balance. from Top Health News -- ScienceDaily https://ift.tt/3tRf1HL via IFTTT

Hope for children with bow hunter syndrome

Fusing the neck's top two vertebrae can prevent repeat strokes in children with bow hunter syndrome, a rare condition that affects a handful of U.S. pediatric patients each year, researchers suggest in a recent study. The finding offers a new way to treat these children and protect them from potentially lifelong neurological consequences. from Top Health News -- ScienceDaily https://ift.tt/3tVoiye via IFTTT

Ebola is a master of disguise

Ebola is so pernicious because it pulls a fast one on the body, disguising itself as a dying cell. A study identifies a pathway that all filoviruses use to gain entry into our cells -- and shows how they can be stopped in their tracks by at least one FDA-approved drug. from Top Health News -- ScienceDaily https://ift.tt/3rS7iY4 via IFTTT

Once bitten, twice shy: the neurology of why one bad curry could put us off for life

A negative experience with food usually leaves us unable to stomach the thought of eating that particular dish again. Using sugar-loving snails as models, researchers believe these bad experiences could be causing a switch in our brains, which impacts our future eating habits. from Top Health News -- ScienceDaily https://ift.tt/2N4QBcX via IFTTT

Biodiversity important at regional scales

New research shows that biodiversity is important not just at the traditional scale of short-term plot experiments -- in which ecologists monitor the health of a single meadow, forest grove, or pond after manipulating its species counts -- but when measured over decades and across regional landscapes as well. The findings can help guide conservation planning and enhance efforts to make human communities more sustainable. from Top Health News -- ScienceDaily https://ift.tt/379Een2 via IFTTT

How do our memories take shape?

Your brain is constantly evaluating which aspects of your experiences to either remember for later, ignore, or forget. Researchers have developed a new approach for studying these aspects of memory, by creating a computer program that turns sequences of events from a video into unique geometric shapes, which can be compared to the shapes of how people recounted the events. The study provides insight into how experiences are committed to memory and recounted to others. from Top Health News -- ScienceDaily https://ift.tt/3qmEKWm via IFTTT

Tap water access linked to dengue risk

Dengue virus is among growing number of mosquito-borne viruses that have adapted to spread in urban environments and are spreading with the increasing rate of urbanization. Now, researchers have identified tap water access in densely populated neighborhoods as a strong predictor of dengue risk in the city of Delhi. from Top Health News -- ScienceDaily https://ift.tt/37a8uy9 via IFTTT

Most people are naturally armed against SARS-CoV-2, study finds

The majority of the population can produce neutralizing antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in severe cases of coronavirus disease 2019 (COVID-19), according to a new study. Moreover, the results support the use of combination antibody therapy to prevent and treat COVID-19. from Top Health News -- ScienceDaily https://ift.tt/2Oz32hL via IFTTT

Researchers propose that humidity from masks may lessen severity of COVID-19

Masks help protect the people wearing them from getting or spreading SARS-CoV-2, the virus that causes COVID-19, but now researchers have added evidence for yet another potential benefit for wearers: The humidity created inside the mask may help combat respiratory diseases such as COVID-19. from Top Health News -- ScienceDaily https://ift.tt/3aZVZpP via IFTTT

Identifying risk factors for elevated anxiety in young adults during COVID-19 pandemic

A new study has identified early risk factors that predicted heightened anxiety in young adults during the coronavirus (COVID-19) pandemic. The findings from the study could help predict who is at greatest risk of developing anxiety during stressful life events in early adulthood and inform prevention and intervention efforts. from Top Health News -- ScienceDaily https://ift.tt/3rIs4sW via IFTTT

Limited transmission of COVID-19 from open schools but teachers were affected: Swedish study

In Sweden, upper-secondary schools moved online while lower-secondary schools remained open during the spring of 2020. A comparison of parents with children in the final year of lower-secondary and first year of upper-secondary school shows that keeping the former open had limited consequences for the overall transmission of the virus. However, the infection rate doubled among lower-secondary teachers relative to upper-secondary ones. from Top Health News -- ScienceDaily https://ift.tt/3dcWuQ3 via IFTTT

NIH experts discuss SARS-CoV-2 viral variants

The rise of significant variants of SARS-CoV-2 has attracted the attention of health and science experts worldwide. In a new editorial, experts outline how these variants have arisen, concerns about whether vaccines currently authorized for use will continue to protect against new variants, and the need for a global approach to fighting SARS-CoV-2 as it spreads and acquires additional mutations. from Top Health News -- ScienceDaily https://ift.tt/3jJUDmW via IFTTT

Smartphone app to change your personality

How quickly can personality traits be modified? An international research team has shown that daily use of a smartphone app can lead to desired personality changes within three months. And three months after the daily interventions, the changes are still noticeable. from Top Health News -- ScienceDaily https://ift.tt/3ahfZ84 via IFTTT

Novel protein could reverse severe muscle wasting in disease, aging and trauma

Muscle stem cells drive the tissue's growth and repair after such injuries. But growing these cells in the lab and using them to therapeutically replace damaged muscle has been frustratingly difficult. Researchers have discovered a factor that triggers these muscle stem cells to proliferate and heal. In a mouse model of severe muscle damage, injections of this naturally occurring protein led to the complete regeneration of muscle and the return of normal movement after severe muscle trauma. from Top Health News -- ScienceDaily https://ift.tt/2NmTtC0 via IFTTT

Response to cancer immunotherapy may be affected by genes we carry from birth

For all their importance as a breakthrough treatment, the cancer immunotherapies known as checkpoint inhibitors still only benefit a small minority of patients, perhaps 15 percent across different types of cancer. Moreover, doctors cannot accurately predict which of their patients will respond. from Top Health News -- ScienceDaily https://ift.tt/3b44lN0 via IFTTT

Using nature's strategies in the development of new drugs

Dimerization of the human neuropeptides oxytocin and vasopressin can produce new types of bioactive molecules. Such new constructs provide several opportunities to optimize the efficacy of these neuropeptides for therapeutic application. The researchers were inspired for this approach from naturally occurring dimers. from Top Health News -- ScienceDaily https://ift.tt/3rODiMw via IFTTT

Metabolism: Light shed on structure of huge enzyme complex

A new method has enabled the natural structure of particularly large and complex enzymes to be revealed. Scientists have investigated a multi-enzyme complex that plays an essential role in metabolism and have discovered that it functions differently than previously thought. This will help scientists better understand certain diseases. from Top Health News -- ScienceDaily https://ift.tt/3d8ekDK via IFTTT

Scientists identify how harmless gut bacteria 'turn bad'

An international team of scientists has determined how harmless E. coli gut bacteria in chickens can easily pick up the genes required to evolve to cause a life-threatening infection. Their study warns that such infections not only affect the poultry industry but could also potentially cross over to infect humans. from Top Health News -- ScienceDaily https://ift.tt/3tRYumC via IFTTT

Algorithm that performs as accurately as dermatologists

A study has now been presented that boosts the evidence for using AI solutions in skin cancer diagnostics. With an algorithm they devised themselves, scientists show the capacity of technology to perform at the same level as dermatologists in assessing the severity of skin melanoma. from Top Health News -- ScienceDaily https://ift.tt/3rSII9v via IFTTT

Can strep throat make tics worse in kids?

Exposure to the bacteria that causes strep throat does not appear to make Tourette syndrome and other chronic tic disorders worse in children and teens, according to a new study. However, exposure was associated with increased symptoms of hyperactivity and impulsiveness. from Top Health News -- ScienceDaily https://ift.tt/2OszvWN via IFTTT

Biochemical rules between RNA-protein interactions and expression of thousands of genes uncovered

A team of researchers has found a way to measure key characteristics of proteins that bind to RNA in cells--a discovery that could improve our understanding of how gene function is disturbed in cancer, neurodegenerative disorders or infections. from Top Health News -- ScienceDaily https://ift.tt/3d8SNeq via IFTTT

A recipe for regenerating bioengineered hair

Scientists have recently developed ways to grow a variety of useful items in laboratories, from meat and diamonds to retinas and other organoids. A team has been working on ways to regenerate lost hair from stem cells. In an important step, a new study identifies a population of hair follicle stem cells in the skin and a recipe for normal cyclical regeneration in the lab. from Top Health News -- ScienceDaily https://ift.tt/3jHCYfI via IFTTT

Mobile game that uses implicit learning improved children's short-term food choices

A new study examined how Indian 10- and 11-year-olds' food choices were affected by playing a pediatric dietary mobile game that uses implicit learning -- educating players without making them aware of the lessons through innovations in neurocognitive training and immersive technology. The study found that the game significantly improved children's food choices immediately after play. from Top Health News -- ScienceDaily https://ift.tt/3aUKuQu via IFTTT

How the 3-D structure of eye-lens proteins is formed

Chemical bonds within the eye-lens protein gamma-B crystallin hold the protein together and are therefore important for the function of the protein within the lens. Contrary to previous assumptions, some of these bonds, called disulphide bridges, are already formed simultaneously with the synthesis of the protein in the cell. from Top Health News -- ScienceDaily https://ift.tt/375AYJg via IFTTT

Vitamin D supplementation: Possible gain in life years combined with cost savings

Scientists have now calculated: If all Germans over the age of 50 were to take vitamin D supplements, up to 30,000 cancer deaths per year could possibly be avoided and more than 300,000 years of life could be gained - in addition, health care costs could be saved. from Top Health News -- ScienceDaily https://ift.tt/2MVNVyo via IFTTT

Lipid epoxides target pain, inflammatory pathways in neurons

When modified using a process known as epoxidation, two naturally occurring lipids are converted into potent agents that target multiple cannabinoid receptors in neurons, interrupting pathways that promote pain and inflammation, researchers report. These modified compounds, called epo-NA5HT and epo-NADA, have much more powerful effects than the molecules from which they are derived, which also regulate pain and inflammation. from Top Health News -- ScienceDaily https://ift.tt/3pkBIRb via IFTTT

Tiny population of neurons may have big role in depression

Scientists report the first evidence that, not short-term stress, like a series of tough college exams, rather chronic, unpredictable stress like that which erupts in our personal and professional lives, induces changes in the function of AgRP neurons that may contribute to depression. from Top Health News -- ScienceDaily https://ift.tt/3aWt9Xl via IFTTT

Long-term stress linked to increased risk of heart attack

Can long-term stress lead to heart attacks? Most people would probably answer in the affirmative, but the scientific evidence of this is scarce. A new study reveals that the levels of the stress hormone cortisol were increased in the months preceding a heart attack. The results suggest that long-term stress is a risk factor for heart attacks. from Top Health News -- ScienceDaily https://ift.tt/3abplm1 via IFTTT

Virtual reality helping to treat fear of heights

Researchers have developed a virtual reality app for smartphones to reduce fear of heights. Now, they have conducted a clinical trial to study its efficacy. Trial participants who spent a total of four hours training with the app at home showed an improvement in their ability to handle real height situations. from Top Health News -- ScienceDaily https://ift.tt/3aQwZBm via IFTTT

Depressed moms who breastfeed boost babies' mood, neuroprotection and mutual touch

Feeding method and affectionate touch patterns in depressed and non-depressed mothers and babies as well as infant's EEG activity showed that mother-infant affectionate touch differed as a function of mood and feeding method (breastfeeding and bottle-feeding). Infants in the depressed and bottle-fed group reduced touch toward their mothers while breastfeeding had a positive effect on both mother and baby. Infants of depressed and breastfeeding mothers showed neither behavioral nor brain development dysregulation previously found in infants of depressed mothers. from Top Health News -- ScienceDaily https://ift.tt/3qeVEWF via IFTTT

Function identified of 'mystery protein' that kills brain cells of people with Parkinson's

Scientists have made a 'vital step' towards understanding the origins of Parkinson's Disease - the fastest growing neurological condition in the world. A study presents a compelling new evidence about what a key protein called alpha-synuclein actually does in neurons in the brain. from Top Health News -- ScienceDaily https://ift.tt/374g4KG via IFTTT

Bats and pangolins in Southeast Asia harbour SARS-CoV-2-related coronaviruses, reveals new study

A new study shows that SARS-CoV-2-related coronaviruses (SC2r-CoVs) are circulating in animals as far away as Thailand. The study reported that high levels of neutralizing antibodies against the virus were present in both bats and pangolins found in the Southeast Asian country. The study further indicates that more SC2r-CoVs are likely to be discovered in the region. from Top Health News -- ScienceDaily https://ift.tt/3rDVb0o via IFTTT

Earliest signs of an immune response found in developing embryos

Researchers reveal that newly formed embryos clear dying cells to maximize their chances of survival. It is the earliest display of an innate immune response found in vertebrate animals to date. The findings may aid future efforts to understand why some embryos fail to form in the earliest stages of development, and lead to new clinical efforts in treating infertility or early miscarriages. from Top Health News -- ScienceDaily https://ift.tt/2NbsWaC via IFTTT

Mediterranean-style diet linked to better thinking skills in later life

People who eat a Mediterranean-style diet -- particularly one rich in green leafy vegetables and low in meat -- are more likely to stay mentally sharp in later life, a study shows. Closely adhering to a Mediterranean diet was associated with higher scores on a range of memory and thinking tests among adults in their late 70s, the research found. The study found no link, however, between the Mediterranean-style diet and better brain health. from Top Health News -- ScienceDaily https://ift.tt/3cZxnjJ via IFTTT

Drug is promising against pancreatic and breast cancers

The drug is effective at treating pancreatic cancer and prolonging survival in mice, according to a new study. A second study shows the drug is also effective against triple-negative breast cancer, a fast-growing and hard-to-treat type of breast cancer that carries a poor prognosis. Clinical trials are set to begin in 2021. from Top Health News -- ScienceDaily https://ift.tt/371hfum via IFTTT

New CRISPR tech targets human genome's complex code

Rice bioengineers harness the CRISPR/Cas9 system to program histones, the support proteins that wrap up and control human DNA, to manipulate gene activation and phosphorylation. The new technology enables innovative ways to find and manipulate genes and pathways responsible for diseases. from Top Health News -- ScienceDaily https://ift.tt/3jCzDyt via IFTTT

Pre-COVID subway air polluted from DC to Boston, but New York region's is the worst, study finds

Commuters now have yet another reason to avoid packing themselves into subway stations. New York City's transit system exposes riders to more inhaled pollutants than any other metropolitan subway system in the Northeastern United States, a new study finds. Yet even its 'cleaner' neighbors struggle with enough toxins to give health-conscious travelers pause. from Top Health News -- ScienceDaily https://ift.tt/3tKGRVY via IFTTT

Training to wisely navigate social conflicts

People are able to approach social conflicts more wisely if they have trained themselves in advance by practicing a distanced self-talk technique, referring to themselves with third-person pronouns such as 'she' or 'they' rather than the first-person pronouns of 'me' or 'I.' from Top Health News -- ScienceDaily https://ift.tt/3aQGssv via IFTTT

AI can predict early death risk

Researchers have found that a computer algorithm developed using echocardiogram videos of the heart can predict mortality within a year. The algorithm -- an example of what is known as machine learning, or artificial intelligence (AI) -- outperformed other clinically used predictors, including pooled cohort equations and the Seattle Heart Failure score. from Top Health News -- ScienceDaily https://ift.tt/3jANUvD via IFTTT

Unusual DNA folding increases the rates of mutations

DNA sequences that can fold into shapes other than the classic double helix tend to have higher mutation rates than other regions in the human genome. New research shows that the elevated mutation rate in these sequences plays a major role in determining regional variation in mutation rates across the genome. from Top Health News -- ScienceDaily https://ift.tt/3aNzvs5 via IFTTT

Advanced simulations reveal how air conditioning spreads COVID-19 aerosols

A restaurant outbreak in China was widely reported as strong evidence of airflow-induced transmission of COVID-19, but it lacked a detailed investigation about exactly how transmission occurred. Researchers report using advanced simulation methods to capture the complex flows that occur when the cold airflow from air conditioners interacts with the hot plume from a dining table and the transport of virus-loading particles within such flows. from Top Health News -- ScienceDaily https://ift.tt/2YYTdeL via IFTTT

COVID-19 vs. conservation: How the northern white rhino rescue programme overcame challenges

The COVID-19 pandemic has changed the life of people everywhere and affected economic, cultural, social and political processes. Research and conservation are not exempt from these negative effects, whereas positive consequences of an 'anthropause' on the environment are controversially discussed. from Top Health News -- ScienceDaily https://ift.tt/3aMPlTP via IFTTT

What's driving 'brain fog' in people with COVID-19

Researchers report an underlying cause of COVID brain: the presence of inflammatory molecules in the liquid surrounding the brain and spinal cord (called the cerebrospinal fluid). The findings suggest that anti-inflammatory drugs, such as steroids, may be useful for treating the condition, but more research is needed. from Top Health News -- ScienceDaily https://ift.tt/3rDHaQE via IFTTT

How accurate are first impressions on a first date?

The high stakes of first dates require would-be partners to make and interpret first impressions. But, can we rely on these first impressions to accurately assess someone's personality? According to researchers, the answer is yes, although it may be more difficult than in more casual settings. from Top Health News -- ScienceDaily https://ift.tt/3tBQAhj via IFTTT