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Top Health News -- ScienceDaily

Published: Jul 23, 2021 7:30:02 PM
Top stories featured on ScienceDaily's Health & Medicine, Mind & Brain, and Living Well sections.
  • Jul 23, 2021 5:12:18 PM
    When experiencing the ups and downs of a virtual roller coaster ride, people who get migraine headaches reported more dizziness and motion sickness than people who do not get migraines, according to a new study.
  • Jul 23, 2021 5:08:49 PM
    There are many reasons that an intranasal vaccine against the SARS-CoV-2 virus would be helpful in the fight against COVID-19 infections, immunologists write in a new article.
  • Jul 23, 2021 5:08:40 PM
    Long thought of as a generic alarm system, the locus coeruleus may actually be a sophisticated regulator of learning and behavior, according to a new review.
  • Jul 23, 2021 4:15:17 PM
    In a wealth and longevity study to incorporate siblings and twin pair data, researchers analyzed the midlife net worth of adults (mean age 46.7 years) and their mortality rates 24 years later. They discovered those with greater wealth at midlife tended to live longer.
  • Jul 23, 2021 4:15:14 PM
    New research by an Executive PhD Research student at the Business School (formerly Cass) outlines how elderly patients with neurological conditions are significantly more likely to develop delirium shortly after they are hospitalised, and those admitted on Sunday and Tuesday are more likely to develop the disorder.
  • Jul 23, 2021 4:15:12 PM
    Researchers have discovered that spontaneous impulses of dopamine, the neurological messenger known as the brain's 'feel good' chemical, occur in the brain of mice. The study found that mice can willfully manipulate these random dopamine pulses for reward.
  • Jul 23, 2021 2:53:16 PM
    A new optogenetic tool, a protein that can be controlled by light, has been characterized by researchers. They used an opsin -- a protein that occurs in the brain and eyes -- from zebrafish and introduced it into the brain of mice. Unlike other optogenetic tools, this opsin is not switched on but rather switched off by light. Experiments also showed that the tool could be suitable for investigating changes in the brain that are responsible for the development of epilepsy.
  • Jul 23, 2021 2:53:04 PM
    Researchers have discovered a previously unknown repair process in the brain that they hope could be harnessed and enhanced to treat seizure-related brain injuries.
  • Jul 23, 2021 2:52:58 PM
    Researchers have recently identified a DNA region known as VNTR2-1 that appears to drive the activity of the telomerase gene, which has been shown to prevent aging in certain types of cells. Knowing how the telomerase gene is regulated and activated and why it is only active in certain cell types could someday be the key to understanding how humans age and how to stop the spread of cancer.
  • Jul 23, 2021 2:52:56 PM
    Advanced technologies have been used to solve a long-standing mystery about why some people develop serious illness when they are infected with the malaria parasite, while others carry the infection asymptomatically.
  • Jul 23, 2021 2:52:47 PM
    Researchers investigate how our brains proceed from merely seeing a landscape to feeling its aesthetic impact.
  • Jul 23, 2021 1:56:47 PM
    DeepMind is partnering with EMBL to make the most complete and accurate database yet of the predicted human protein structures freely and openly available to the scientific community. The AlphaFold Protein Structure Database will enable research that advances understanding of these building blocks of life, accelerating research across a variety of fields. AlphaFold's impact is already being realized by early partners researching neglected diseases, studying antibiotic resistance, and recycling single-use plastics.
  • Jul 22, 2021 9:12:15 PM
    After kidney transplantation, natural killer cells of the recipient become active because they miss 'self' proteins on donor cells. These cells contribute to organ rejection, in addition to traditional modes of rejection involving T cells and antibodies.
  • Jul 22, 2021 9:12:10 PM
    The body's so-called good cholesterol may be even better than we realize. New research suggests that one type of high-density lipoprotein (HDL) has a previously unknown role in protecting the liver from injury. This HDL protects the liver by blocking inflammatory signals produced by common gut bacteria.
  • Jul 22, 2021 8:30:20 PM
    Millennials, often referred to as the 'job-hopping generation,' represent a group of young workers who once grabbed the national spotlight with their publicized demands for 'fun' work perks, such as happy hours. However, researchers have discovered today's young workers -- ages 21-34 -- represent a life-stage shift toward placing more value on having respectful communication in the workplace over trendy work perks.
  • Jul 22, 2021 8:30:03 PM
    Scientists have built an artificial intelligence (AI) model that identifies chemical compounds that promote healthy aging - paving the way towards pharmaceutical innovations that extend a person's lifespan.
  • Jul 22, 2021 8:30:00 PM
    Researchers shrunk a deadly glioblastoma tumor by more than a third using a helmet generating a noninvasive oscillating magnetic field that the patient wore on his head while administering the therapy in his own home. The 53-year-old patient died from an unrelated injury about a month into the treatment, but during that short time, 31% of the tumor mass disappeared. The autopsy of his brain confirmed the rapid response to the treatment.
  • Jul 22, 2021 6:52:17 PM
    Engineers developed a soft, stretchy ultrasound patch that can be worn on the skin to monitor blood flow through vessels deep inside the body. Such a device can make it easier to detect cardiovascular problems, like blockages in the arteries that could lead to strokes or heart attacks.
  • Jul 22, 2021 6:20:37 PM
    As a newborn mammal opens its eyes for the first time, it can already make visual sense of the world around it. But how does this happen before they have experienced sight?
  • Jul 22, 2021 6:20:31 PM
    A new tool that enables thousands of tiny experiments to run simultaneously on a single polymer chip will let scientists study enzymes faster and more comprehensively than ever before.
  • Jul 22, 2021 6:20:29 PM
    A new study shows that the stiffness of protein fibers in tissues, like collagen, are a key component in controlling the movement of cells. The groundbreaking discovery provides the first proof of a theory from the early 1980s and could have a major impact on fields that study cell movement from regenerative medicine to cancer research.
  • Jul 22, 2021 6:20:24 PM
    The rapid spread of the Alpha variant of COVID-19 in the UK resulted from biological changes in the virus and was enhanced by large numbers of infected people 'exporting' the variant around the country, in what the researchers call a 'super-seeding' event.
  • Jul 22, 2021 6:19:54 PM
    A computational analysis of COVID-19 tests suggests that, in order to minimize the number of infections in a population, the amount of testing matters more than the sensitivity of the tests that are used.
  • Jul 22, 2021 6:19:50 PM
    Infection with dengue virus makes mosquitoes more sensitive to warmer temperatures, according to new research. The team also found that infection with the bacterium Wolbachia, which has recently been used to control viral infections in mosquitoes, also increases the thermal sensitivity of the insects. The findings suggest that global warming could limit the spread of dengue fever but could also limit the effectiveness of Wolbachia as a biological control agent.
  • Jul 22, 2021 5:13:59 PM
    Researchers have developed a way to analyze how individual immune cells react to the bacteria that cause tuberculosis. It could pave the way for new vaccine strategies and provide insights into fighting other infectious diseases.
  • Jul 22, 2021 5:13:45 PM
    New hydrogels mimic intestines when lined with epithelial cells. A study demonstrated hydrogels in various stiffnesses are valuable for learning the dynamics of pathogens that cause diarrhea and other intestinal diseases.
  • Jul 22, 2021 4:06:24 PM
    It's a favourite first-order for the day, but while a quick coffee may perk us up, new research shows that too much could be dragging us down, especially when it comes to brain health.
  • Jul 22, 2021 4:06:12 PM
    An innovative testing platform that more closely mimics what cancer encounters in the body may allow for more precise, personalized therapies by enabling the rapid study of multiple therapeutic combinations against tumor cells. The platform uses a three-dimensional environment to more closely mirror a tumor microenvironment.
  • Jul 22, 2021 3:31:13 PM
    After examining nearly the entire human genome for genetic changes that increase risk of aneurysm, researchers discovered a new change in the genetic code of a transcription factor.
  • Jul 22, 2021 3:30:58 PM
    A new approach to treating breast cancer kills 95 to 100 percent of cancer cells in mouse models of human estrogen-receptor-positive breast cancers and their metastases in bone, brain, liver and lungs. The newly developed drug, called ErSO, quickly shrinks even large tumors to undetectable levels.
  • Jul 22, 2021 3:30:52 PM
    Scientists have successfully reversed age-related memory loss in mice and say their discovery could lead to the development of treatments to prevent memory loss in people as they age.
  • Jul 22, 2021 3:30:46 PM
    Over the last few decades, neurodegenerative diseases became one of the top 10 global causes of death. Researchers worldwide are making a strong effort to understand neurodegenerative diseases pathogenesis, which is essential to develop efficient treatments against these incurable diseases. A team of researchers found out the implication of lysosomes in the spread of Parkinson's disease.
  • Jul 22, 2021 3:30:43 PM
    A new study shows that deep learning models trained on large sets of cancer genetic and tissue histology data can easily identify the institution that submitted the images.
  • Jul 22, 2021 3:30:34 PM
    Findings could help pave the way for cancer therapies that target TAF12, potentially stopping transcription in cancer cells and helping decrease the growth of cancerous tumors.
  • Jul 22, 2021 3:30:16 PM
    Geneticists have discovered how a specific genetic mutation (H3K27M) causes a devastating, incurable childhood cancer, known as diffuse midline glioma (DMG), and -- in lab studies working with model cell types -- successfully reverse its effects to slow cancer cell growth with a targeted drug. Their landmark work translates crucial new understanding of the genetics of DMG progression into a highly promising, targeted therapeutic approach and offers significant hope of improved treatments in the future.
  • Jul 22, 2021 3:30:12 PM
    A form of gene therapy protects optic nerve cells and preserves vision in mouse models of glaucoma, according to new research. The findings suggest a way forward for developing neuroprotective therapies for glaucoma, a leading cause of visual impairment and blindness.
  • Jul 22, 2021 3:30:07 PM
    Advances in microscopy reveal how the human genome organises itself in three-dimensional space at much higher resolution than previously possible. A new study finds that transcription generates a force that moves across DNA strands like ripples through water. The discovery may have future implications for the understanding of genetic diseases such as Cornelia de Lange syndrome, developmental disorders linked to chromatin folding, and open new avenues of research in genome fragility and cancer development.
  • Jul 22, 2021 3:30:04 PM
    Researchers have found that omega-3 levels in blood erythrocytes are very good mortality risk predictors. The study used data from a long-term study group, the Framingham Offspring Cohort, which has been monitoring residents of this Massachusetts town, in the United States, since 1971 and concludes that, 'Having higher levels of these acids in the blood, as a result of regularly including oily fish in the diet, increases life expectancy by almost five years.'
  • Jul 22, 2021 3:29:58 PM
    A new randomized controlled trial shows wearing a vibrating collision device can reduce collisions in people who are blind and visually impaired, adding a potential new tool that can be used by these populations in addition to a long cane, to ensure independent travel safety.
  • Jul 22, 2021 3:29:42 PM
    Some antibiotics appear to be effective against a form of skin cancer known as melanoma. Researchers examined the effect of these antibiotics on patient-derived tumors in mice.
  • Jul 22, 2021 3:29:38 PM
    Participation in elite adult rugby may be associated with changes in brain structure, according to a new study.
  • Jul 22, 2021 3:29:35 PM
    Reduced mobility induced by the COVID-19 restrictions had only minor influence on particulate pollution levels, according to atmosphere studies in the Po Valley region of northern Italy. Eventually computer simulations indicated that the change in air quality led to an increase in secondary aerosol formation.
  • Jul 22, 2021 3:29:20 PM
    Researchers report the first structural confirmation that endogenous -- or self-made -- molecules can set off innate immunity in mammals via a pair of immune cell proteins called the TLR4-MD-2 receptor complex. The work has wide-ranging implications for finding ways to treat and possibly prevent autoimmune diseases such as multiple sclerosis and antiphospholipid syndrome.
  • Jul 22, 2021 3:29:11 PM
    With the application of a novel three-dimensional imaging technology, researchers have discovered that one portion of the autonomic nervous system in the liver undergoes severe degeneration in non-alcoholic fatty liver disease. The study, which is conducted in mice and human liver tissue, shows that the degeneration of nerves is correlated with the severity of liver pathology.
  • Jul 22, 2021 3:29:08 PM
    Researchers have developed a tougher, safer bicycle helmet using a combination of materials. The new helmet prototype has higher energy absorption, reducing the amount of energy transferred to a cyclist's head in the event of an accident and likely lowering the chances of serious injury.
  • Jul 22, 2021 3:29:06 PM
    New research has uncovered the early assembly of gamma-secretase, a protein complex linked to numerous cellular processes including the development of Alzheimer's disease. In a first step, two dimeric subcomplexes are formed, which independently exit the ER and only afterwards assemble into a four-subunit complex. This 'buckle up' mechanism is thought to prevent premature assembly and activity.
  • Jul 22, 2021 3:28:59 PM
    Scientists have developed a 'nanobody' - a small fragment of a llama antibody - that is capable of chasing out human cytomegalovirus (HCMV) as it hides away from the immune system. This then enables immune cells to seek out and destroy this potentially deadly virus.
  • Jul 22, 2021 3:28:53 PM
    Researchers have automated brain MRI image labeling, needed to teach machine learning image recognition models, by deriving important labels from radiology reports and accurately assigning them to the corresponding MRI examinations. Now, more than 100,00 MRI examinations can be labeled in less than half an hour.
  • Jul 22, 2021 3:28:50 PM
    Researchers reported the development of a transferrable and integrative type I CRISPR-based platform that can efficiently edit the diverse clinical isolates of Pseudomonas aeruginosa, a superbug capable of infecting various tissues and organs and a major source of nosocomial infections. The technique can accelerate the identification of resistance determinants of multidrug resistant (MDR) pathogens and the development of novel anti-resistance strategies.
  • Jul 22, 2021 3:28:29 PM
    More than 820 million people in the world don't have enough to eat, while climate change and increasing competition for land and water are further raising concerns about the future balance between food demand and supply. The results of a new study can be used to benchmark global food security projections and inform policy analysis and public debate on the future of food.
  • Jul 22, 2021 3:24:59 PM
    The standardized non-invasive clear cell likelihood score (ccLS) -- derived from MRI -- correlates with the growth rate of small renal masses (cT1a, <4 cm) and may help guide personalized management.
  • Jul 21, 2021 11:01:13 PM
    Researchers have shown how the brain communicates to blood vessels when in need of energy, and how these blood vessels respond by relaxing or constricting to direct blood flow to specific brain regions.
  • Jul 21, 2021 9:27:17 PM
    Researchers have published evidence of the sustained benefits of an investigational antipsychotic treatment for people with dementia-related psychosis.
  • Jul 21, 2021 9:27:08 PM
    A new model mimics physiologic loads on engineering heart muscle tissues, yielding an unprecedented view of how genetics and mechanical forces contribute to heart muscle function.
  • Jul 21, 2021 9:27:03 PM
    Researchers have identified an immune protein tied to the rare neurodegenerative condition known as Niemann-Pick disease type C. The finding, made in mouse models, could offer a powerful new therapeutic target for Niemann-Pick disease type C, a condition that was identified more than a century ago but still lacks effective treatments.
  • Jul 21, 2021 9:27:00 PM
    In a new study that combines assessments of the risks of toxic emissions, nontoxic emissions and people's vulnerability to them, researchers found a strong and statistically significant relationship between the spatial distribution of global climate risk and toxic pollution.
  • Jul 21, 2021 9:26:58 PM
    Exoskeletons - wearable devices used by workers on assembly lines or in warehouses to alleviate stress on their lower backs - may compete with valuable resources in the brain while people work, canceling out the physical benefits of wearing them, a new study suggests.
  • Jul 21, 2021 6:20:07 PM
    Commonly accepted advice to keep a straight back and squat while lifting in order to avoid back pain has been challenged by new research. The research examined people who had regularly performed manual lifting through their occupation for more than five years and found those who experienced low back pain as a result were more likely to use the recommended technique of squatting and keeping a straight back, while those without back pain tended not to adhere to the recommended lifting advice.
  • Jul 21, 2021 6:19:45 PM
    The oral targeted therapy drug ibrutinib is an effective treatment option for high-risk hairy cell leukemia, according to a new study.
  • Jul 21, 2021 6:19:36 PM
    Older people appear to have fewer antibodies against the novel coronavirus, a new laboratory study suggests. With vaccine uptake slowing in Oregon and across United States, researchers say their findings underscore the importance of promoting vaccinations in local communities.