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Scientists have built a computer 'brain circuit', or artificial neural network, that mirrors human decision-making processes and sheds light on how circuits might be altered in psychiatric diseases. from Top Health News -- ScienceDaily https://ift.tt/3ijUTab via IFTTT

Researchers reported promising preclinical findings for a prototype of a vascular graft designed as a replacement for a damaged or blocked coronary artery, which supplies blood to the heart. from Top Health News -- ScienceDaily https://ift.tt/3cJDdDw via IFTTT

Complex brain circuits in rodents can organize themselves with genetics playing only a secondary role, according to a new computer modelling study. from Top Health News -- ScienceDaily https://ift.tt/3ijThNq via IFTTT

Findings from genetically diverse mice challenge long-held assumptions about how the brain is able to briefly hold onto important information. from Top Health News -- ScienceDaily https://ift.tt/33jJxyK via IFTTT

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A new analysis, using information from the COVID Symptom Study app and patients admitted to St Thomas' Hospital in London, has shown that delirium -- a state of acute confusion associated with a higher risk of serious illness and death -- is a key symptom of COVID-19 in frail, older people. from Top Health News -- ScienceDaily https://ift.tt/3l23bVI via IFTTT

The virus that causes COVID-19 uses a clutch-like shifter to enable transcription of one RNA string into multiple proteins, and therein lies a vulnerability. A proof-of-concept study shows it's possible to eliminate that shifter with an RNA-binding compound linked to a 'trash this' signal. from Top Health News -- ScienceDaily https://ift.tt/3l6QwBb via IFTTT

Scientists have made a leap forward in our understanding of how COVID-19 infections trigger deadly levels of lung inflammation. Their discovery of a pathway that sets the lungs ablaze with inflammation has launched a search for new therapeutics that could block this process before it can take off and turn fatal. from Top Health News -- ScienceDaily https://ift.tt/3n5Wt36 via IFTTT

Researchers studying interferons, immune response proteins released naturally by human cells when viruses are detected, have uncovered new details on the mechanisms underlying cell defenses. They describe the intricate, time-dependent regulatory mechanisms that human cells use to control the duration and strength of antiviral responses triggered by interferon. Based on these findings, researchers are now able to design time-dependent administrations of interferon to minimize inhibitory factors and boost therapeutic responses. from Top Health News -- ScienceDaily https://ift.tt/30lZGBK via IFTTT

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In a study recently published in BMC Public Health, Arizona State University researchers found that heavy users of screens -- defined as those who use screens an average of 17.5 hours per day -- reported the least healthful dietary patterns and the poorest health-related characteristics compared with moderate and light users, who averaged roughly 11.3 and 7 hours of screen use per day, respectively. from Top Health News -- ScienceDaily https://ift.tt/36lQpx9 via IFTTT

A team of researchers reports that spinal cord stimulation (SCS) measurably decreased pain and reduced motor symptoms of Parkinson's disease, both as a singular therapy and as a 'salvage therapy' after deep brain stimulation (DBS) therapies were ineffective. from Top Health News -- ScienceDaily https://ift.tt/3n3Yht7 via IFTTT

Neuronal communication is so fast, and at such a small scale, that it is exceedingly difficult to explain precisely how it occurs. An observation enabled by a custom imaging system, has led to a clear understanding of how neurons communicate with each other by modulating the 'tone' of their signal, which previously had eluded the field. from Top Health News -- ScienceDaily https://ift.tt/2Gl2Caz via IFTTT

Researchers shed new light on how Zika virus hijacks our own cellular machinery to break down an essential protein for neurological development, getting it to 'eat itself'. By triggering this process known as autophagy, Zika virus is able to degrade an important protein, a process that may contribute to the development of neurological or brain deficiencies and congenital birth defects in the newborns of infected pregnant women. from Top Health News -- ScienceDaily https://ift.tt/30jeBMQ via IFTTT

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Researchers have developed a new generation of microelectrode-array chips for measuring nerve impulses, enabling studies of how thousands of nerve cells interact with each other. from Top Health News -- ScienceDaily https://ift.tt/3cMuPDa via IFTTT

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Genetic variants that leave their carrier more susceptible to severe COVID-19 are inherited from Neanderthals, a new study finds. from Top Health News -- ScienceDaily https://ift.tt/2HJ6Zgq via IFTTT

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Scientists have measured the molecular footprint that aging leaves on various mouse and human tissues. Using the data, they have identified likely regulators of this central process. from Top Health News -- ScienceDaily https://ift.tt/34b3J55 via IFTTT

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Many cells in our bodies are on the move and somehow seem to "know" where to go. But how do they learn the location of their destination? This question is key to understanding phenomena such as the renewal of cells in our body, the migration of cancer cells, and especially how wounds heal. from Top Health News -- ScienceDaily https://ift.tt/2GiRoU0 via IFTTT

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A newly identified genetic factor allows adult skin to repair itself like the skin of a newborn. The discovery has implications for wound treatment and preventing some of the aging process in skin. Researchers identified a factor in the skin of baby mice controlling hair follicle formation. When it was activated in adult mice, their skin was able to heal wounds without scarring. The reformed skin even included fur and could make goose bumps. from Top Health News -- ScienceDaily https://ift.tt/3kSH0kI via IFTTT

Some people are at higher risk of developing obesity because they possess genetic variants that affect how the brain processes sensory information and regulates feeding and behavior. The findings support a growing body of evidence that obesity is a disease whose roots are in the brain. from Top Health News -- ScienceDaily https://ift.tt/3kQ0kiK via IFTTT

Women who have suffered unexplained repeated pregnancy loss (uRPL) have altered perceptions and brain responses to male body odors, in comparison to those with no history of uRPL, suggests a new study. from Top Health News -- ScienceDaily https://ift.tt/33fzY3Q via IFTTT

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Travel bans will delay the peak of infection with days, while social distancing has a much stronger impact, amounting in up to 4 weeks delay, scientists report. from Top Health News -- ScienceDaily https://ift.tt/2SadESN via IFTTT

Testing self-collected saliva samples could offer an easy and effective mass testing approach for detecting asymptomatic COVID-19. from Top Health News -- ScienceDaily https://ift.tt/30hFoJB via IFTTT

According to a new U.S. poll, COVID-19 may not influence parents' beliefs about the flu vaccine, with just one third believing it's more important for children to get vaccinated this year, while one in three parents don't plan to vaccinate children against the flu. from Top Health News -- ScienceDaily https://ift.tt/30dajGL via IFTTT

Millions of people turn to their mobile devices when seeking medical advice. They're able to share their symptoms and receive potential diagnoses through chatbot-based symptom-checker (CSC) apps. But how do these apps compare to a trip to the doctor's office? Not well, according to a new study. from Top Health News -- ScienceDaily https://ift.tt/3cEJMqS via IFTTT

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Navigating through life requires balancing emotion and reason, a feat accomplished by the brain region 'area 32' of the anterior cingulate cortex. The area maintains emotional equilibrium by relaying information between cognitive and emotional brain regions, according to new research. from Top Health News -- ScienceDaily https://ift.tt/2HFPyNK via IFTTT

Introducing high doses of gluten from four months of age into infants' diets could prevent them from developing celiac disease, a study has found, though researchers say further studies are needed before being applied in practice. from Top Health News -- ScienceDaily https://ift.tt/30d5HjV via IFTTT

A study of patients hospitalized due to COVID-19 suggests that the disease might deteriorate men's testosterone levels. The study found that as men's testosterone level at baseline decreases, the probability for them to be in the intensive care unit (ICU) significantly increases. from Top Health News -- ScienceDaily https://ift.tt/2EMuVyo via IFTTT

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Early results of an experimental vaping study have shown significant lung injury from e-cigarette devices with nickel-chromium alloy heating elements. from Top Health News -- ScienceDaily https://ift.tt/33aYmDD via IFTTT

Long after a COVID-19 vaccination is developed and years after the coronavirus death toll is tallied, the impact on mental health will linger, continuing to inflict damage if not addressed, according to new research. from Top Health News -- ScienceDaily https://ift.tt/34mE2P9 via IFTTT

A type of anti-bacterial T cells, so-called MAIT cells, are strongly activated in people with moderate to severe COVID-19 disease, according to a new study. from Top Health News -- ScienceDaily https://ift.tt/2S5KJ1Y via IFTTT

Experiencing multiple stressors triggered by the COVID-19 pandemic -- such as unemployment -- and COVID-19-related media consumption are directly linked to rising acute stress and depressive symptoms across the United States, according to a new study. from Top Health News -- ScienceDaily https://ift.tt/2G7Y0F1 via IFTTT

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Researchers confirm that about 14% of all cases of cerebral palsy, a disabling brain disorder for which there are no cures, may be linked to a patient's genes and suggest that many of those genes control how brain circuits become wired during early development. The results led to recommended changes in the treatment of at least three patients, highlighting the importance of understanding the role genes play in the disorder. from Top Health News -- ScienceDaily https://ift.tt/3394zjd via IFTTT

Researchers reported that genetic testing is cost-effective and beneficial for newly diagnosed patients with metastatic gastrointestinal stromal tumors (GIST), a rare type of cancer. from Top Health News -- ScienceDaily https://ift.tt/33bhPnO via IFTTT

Evolution leaves its traces -- in particular -- in genomes. Researchers used '2-n-way' software to determine the relationships between species or individuals and compare any genome of and for anyone. from Top Health News -- ScienceDaily https://ift.tt/3jcTRhg via IFTTT

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Every region has its place in the brain. However, it has been unclear why brain regions are located where they are. Now, scientists have defined two main axes along which brain regions are genetically organized, stretching from posterior to anterior and inferior to superior in the brain. These axes are mainly shaped by genes and evolution. from Top Health News -- ScienceDaily https://ift.tt/3cD7zrn via IFTTT

New findings about body fat help explain the differing health risks men and women face - and set the stage for better, more targeted treatments. from Top Health News -- ScienceDaily https://ift.tt/30c7ntZ via IFTTT

To fight cancer more effectively, a researcher probes its inner workings for metabolic weaknesses. from Top Health News -- ScienceDaily https://ift.tt/3jbrqQJ via IFTTT

Cocaine addiction is a chronic disorder with a high rate of relapse for which no effective treatment is currently available. Scientists recently demonstrated that two gene mutations involved in the conformation of nicotinic receptors in the brain appear to play a role in various aspects of cocaine addiction. from Top Health News -- ScienceDaily https://ift.tt/2SjQGc5 via IFTTT

Researchers demonstrated a proof-of-concept stem cell treatment in a mouse model of Parkinson's disease. They found that neurons derived from stem cells can integrate well into the correct regions of the brain, connect with native neurons and restore motor functions. from Top Health News -- ScienceDaily https://ift.tt/36aIrqN via IFTTT

An analysis conducted in 45,000 adults mainly of European ancestry associated 160 genes with brain shrinkage seen on MRI. from Top Health News -- ScienceDaily https://ift.tt/2Gk8Qr3 via IFTTT

Researchers have demonstrated the utility of artificial intelligence (AI) in identifying and categorizing neural degeneration in the model organism C. elegans. The tool uses deep learning, a form of AI, and should facilitate and expedite research into neural degeneration. from Top Health News -- ScienceDaily https://ift.tt/2S57tiX via IFTTT

A new study shows extraneous images draw attention from text, reducing comprehension in beginning readers. from Top Health News -- ScienceDaily https://ift.tt/30epCz8 via IFTTT

A new study finds any alcohol use during pregnancy, even low levels, is associated with subtle, yet significant behavioural and psychological effects in children including anxiety, depression and poor attention. from Top Health News -- ScienceDaily https://ift.tt/36i1Tlp via IFTTT

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A new article examines the ways in which COVID-19 disproportionately impacts historically disadvantaged communities of color in the United States, and how baseline inequalities in our health system are amplified by the pandemic. The authors also discuss potential solutions. from Top Health News -- ScienceDaily https://ift.tt/3i9Ea9a via IFTTT

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While the Y chromosome's role was believed to be limited to the functions of the sexual organs, a scientist has shown that it impacts the functions of other organs as well. from Top Health News -- ScienceDaily https://ift.tt/33a60y9 via IFTTT

Sharing a home with a pet appeared to act as a buffer against psychological stress during lockdown, a new survey shows. from Top Health News -- ScienceDaily https://ift.tt/3mVP2LG via IFTTT

Researchers suggest that carriers of the genetic mutations PiZ and PiS are at high risk for severe illness and even death from COVID-19. These mutations lead to deficiency in the alpha1-antitrypsin protein, which protects lung tissues from damage in case of severe infections. Other studies have already associated deficiency in this protein with inflammatory damage to lung function in other diseases. from Top Health News -- ScienceDaily https://ift.tt/2G2uhgK via IFTTT

The life-support option known as ECMO appears to be saving lives for many of the critically ill COVID-19 patients who receive it. Patients in a new international study faced a staggeringly high risk of death, as ventilators and other care failed to support their lungs. But after they were placed on ECMO, their actual death rate was less than 40 percent. from Top Health News -- ScienceDaily https://ift.tt/306DjAb via IFTTT

Researchers found that gently heating N95 masks in high relative humidity could inactivate SARS-CoV-2 virus trapped within the masks, without degrading the masks' performance. from Top Health News -- ScienceDaily https://ift.tt/3i76b1d via IFTTT

While declines in U.S. hospital admissions during the onset of COVID-19 has been well-documented, little is known about how admissions during the rebound varied by age, insurance coverage and socioeconomic groups. The decline in non-COVID-19 admissions was similar across all demographic subgroups but the partial rebound that followed shows that non-COVID-19 admissions for residents from Hispanic neighborhoods was significantly lower than for other groups. from Top Health News -- ScienceDaily https://ift.tt/3kMluyf via IFTTT

People of Asian ancestry face yet another set of challenges posed by racism and xenophobia which has soared during the COVID-19 pandemic. from Top Health News -- ScienceDaily https://ift.tt/36cFKF4 via IFTTT

The anxiety, stress and worry brought on by COVID-19 is not limited to daytime hours. The pandemic is affecting our dreams as well, infusing more anxiety and negative emotions into dreams and spurring dreams about the virus itself, particularly among women, according to new research. from Top Health News -- ScienceDaily https://ift.tt/2GgmaN9 via IFTTT

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A new paper found that adherence to infection control processes, especially proper wearing of personal protective equipment (PPE) and cohorting strategies, such as grouping residents based on their risk of infection or whether they tested positive for COVID-19, was significantly associated with declines in weekly infection and mortality rates. from Top Health News -- ScienceDaily https://ift.tt/330VOrq via IFTTT

All viruses can only do damage by replicating inside the cells of another organism, their host. Researchers have now shown an important mechanism in this host-attacking process, at the single-molecule level in living cells. from Top Health News -- ScienceDaily https://ift.tt/3kTPh8l via IFTTT

A new study looks at how Americans' attitudes and responses have changed during the time of the pandemic and how to many people, the virus is not a biological agent but instead a malicious actor. from Top Health News -- ScienceDaily https://ift.tt/3i1HH9F via IFTTT

A clinical trial provides evidence that 3D-printed alternative nasal swabs work as well for COVID-19 diagnostic testing as commercial synthetic flocked nasal swabs. Given the ongoing need for widespread COVID-19 testing, the researchers conclude that 3D printing technology offers a viable, cost-efficient option to address swab supply shortages. from Top Health News -- ScienceDaily https://ift.tt/3j2ybVe via IFTTT

Researchers analyzed urine samples from pregnant women to look for the presence of DINCH, which is short for di(isononyl)cyclohexane-1,2-dicarboxylate. They found concentrations of DINCH in most of the urine samples but no evidence of effects in lab assays on two hormones, progesterone and estrogen. from Top Health News -- ScienceDaily https://ift.tt/2HtRx7D via IFTTT

Laboratory tests of surgical and N95 masks show that they do cut down the amount of aerosolized particles emitted during breathing, talking and coughing. Tests of homemade cloth face coverings, however, show that the fabric itself releases a large amount of fibers into the air, underscoring the importance of washing them. from Top Health News -- ScienceDaily https://ift.tt/33ZZLMn via IFTTT

A new study finds that rude emails at work can lead to significant distress for employees. Researchers say that 'active' email rudeness is overloaded with strong negative emotions. By comparison, 'passive' email rudeness leaves people struggling with uncertainty. Passive email rudeness may create problems for employees' sleep, which further puts them in a negative emotional state the next morning, thus creating a vicious cycle. from Top Health News -- ScienceDaily https://ift.tt/3mRhJt9 via IFTTT

A new study into the causes of sensorimotor impairments prevalent among autistic people could pave the way for better treatment and management in the future, say psychologists. from Top Health News -- ScienceDaily https://ift.tt/2FZCDWq via IFTTT

In the United States, individual state laws barring 18- to 20-year-olds from buying or possessing a handgun make little difference in the rate of homicides involving a gun by people in that age group, a new study has found. from Top Health News -- ScienceDaily https://ift.tt/306iHry via IFTTT

A cocktail of powerful antibodies identified in recovered patients locks the coronavirus infection machinery, inhibits SARS-CoV-2 attachment to host cells, and protects animals challenged with the pandemic coronavirus. from Top Health News -- ScienceDaily https://ift.tt/343Gfyu via IFTTT

A research team has systematically investigated the cognitive abilities of lemurs, which have relatively small brains compared to other primates. Conducting systematic tests with identical methods revealed that cognitive abilities of lemurs hardly differ from those of monkeys and great apes. Instead, this study revealed that the relationship between brain size and cognitive abilities cannot be generalized and it provides new insights into the evolution of primates. from Top Health News -- ScienceDaily https://ift.tt/2Hq8xM0 via IFTTT

A new study suggests that star-shaped brain cells known as astrocytes could be as important to the regulation of sleep as neurons. The study builds new momentum toward ultimately solving the mystery of why we sleep and how sleep works in the brain. The discovery may also set the stage for potential future treatment strategies for sleep disorders and neurological diseases and other conditions associated with troubled sleep. from Top Health News -- ScienceDaily https://ift.tt/33YqLvV via IFTTT

Researchers have sequenced the genome of Alexander Fleming's penicillin mould for the first time and compared it to later versions. from Top Health News -- ScienceDaily https://ift.tt/3kOGbcG via IFTTT

Mitochondria are the powerhouses of our cells, generating energy that supports life. A giant molecular proton pump, called complex I, is crucial: It sets in motion a chain of reactions, creating a proton gradient that powers the generation of ATP, the cell's fuel. Scientists have solved the mystery of how complex I works: Conformational changes in the protein combined with electrostatic waves move protons into the mitochondrial matrix. from Top Health News -- ScienceDaily https://ift.tt/367yoCU via IFTTT

Scientists have spotted a once-in-a-century climate anomaly during World War I that likely increased mortality during the war and the influenza pandemic in the years that followed. from Top Health News -- ScienceDaily https://ift.tt/33XxOF3 via IFTTT

A world-first study has found that severely overweight people are less likely to be able to re-wire their brains and find new neural pathways, a discovery that has significant implications for people recovering from a stroke or brain injury. from Top Health News -- ScienceDaily https://ift.tt/36dlWSd via IFTTT

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New research proposes that Alzheimer's disease may be driven by the overactivation of fructose made in the brain. The study outlined the hypothesis that Alzheimer's is a modern disease driven by changes in dietary lifestyle that has resulted in excessive fructose metabolism in the brain. from Top Health News -- ScienceDaily https://ift.tt/2RV5ZHE via IFTTT

Scientists have mapped and described the function of cells in six regions of the adult heart, providing a new foundation for studying heart disease. from Top Health News -- ScienceDaily https://ift.tt/3cvz71D via IFTTT

A new observational study finds patients in the hospital for COVID-19 have high levels of soluble urokinase receptor (suPAR), an immune-derived pathogenic protein that is strongly predictive of kidney injury. from Top Health News -- ScienceDaily https://ift.tt/3mLi0Op via IFTTT

A new study finds that manufacturing response to COVID-19 has been largely reactive and uncoordinated, and many firms' crisis communication plans do not include managing an infectious-disease outbreak. from Top Health News -- ScienceDaily https://ift.tt/330asPJ via IFTTT

For people still employed during the COVID-19 pandemic, job insecurity and financial concern are associated with greater symptoms of depression and anxiety, according to a new study. from Top Health News -- ScienceDaily https://ift.tt/3kM9X1I via IFTTT

A comprehensive search of genetic variation databases has revealed no significant differences across populations and ethnic groups in seven genes associated with viral entry of SARS-CoV-2. from Top Health News -- ScienceDaily https://ift.tt/2S9wNEx via IFTTT

Administering neuropsychology evaluations to children online in the comfort of their own homes is feasible and delivers results comparable to tests traditionally performed in a clinic, a new study indicates. The finding could help expand access to specialists and reduce barriers to care, particularly as the popularity of telemedicine grows during the COVID-19 pandemic. from Top Health News -- ScienceDaily https://ift.tt/3i23jTs via IFTTT

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Scientists have developed a tool for studying the biting behavior of common pathogen-carrying mosquitoes. from Top Health News -- ScienceDaily https://ift.tt/3kD7Xce via IFTTT

The first stages of placental development take place days before the embryo starts to form in human pregnancies. The finding highlights the importance of healthy placental development in pregnancy, and could lead to future improvements in fertility treatments such as IVF, and a better understanding of placental-related diseases in pregnancy. from Top Health News -- ScienceDaily https://ift.tt/307vSIO via IFTTT

Researchers have discovered a novel, second mechanism of action by the antiviral drug remdesivir against SARS-CoV-2. The research team previously demonstrated how remdesivir inhibits the COVID-19 virus's polymerase or replication machinery in a test tube. from Top Health News -- ScienceDaily https://ift.tt/3cpZ9Uf via IFTTT

Scientists have described a new nanodevice that acts almost identically to a brain cell. Furthermore, they have shown that these synthetic brain cells can be joined together to form intricate networks that can then solve problems in a brain-like manner. from Top Health News -- ScienceDaily https://ift.tt/2G5iw92 via IFTTT

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