Ribosomes are the complexes of ribonucleoproteins at the heart of protein synthesis in cells. However in the absence of conclusive evidence, how these complexes operate has been open to debate. Now Hirotatsu Imai and Noriyuki Kodera at Kanazawa University, alongside Toshio Uchiumi at Niigata University in Japan, show visualizations of the structural dynamics and factor pooling that take place at ribosome stalk proteins as they build new proteins. Ribosomes were first discovered in the 1950s and their broad function has been widely understood for some time - they read messenger RNA sequences and from that generate sequences of correctly ordered amino acids into new proteins. The ribosome stalk protein in particular plays an ...

Noise exposure accounts for 22% of worldwide work-related health problems. Excessive noise not only causes hearing loss and tinnitus, but also increases the risk of cardiovascular diseases. To provide protection, workers normally wear earplugs. However, commonly available earplugs are often uncomfortable, since they don't fit everyone's ears equally well. How could we improve the comfort and effectiveness of these earplugs? What aspects of the ear canal must be taken into account? To answer these questions, researchers from the École de technologie supérieure (ÉTS University) and the Institut de recherche en santé et sécurité ...

Non-violent offenders serving time for drug use or possession should be freed immediately and their convictions erased, according to research published in the peer-reviewed The American Journal of Bioethics. More than 60 international experts including bioethicists, psychologists and drug experts have joined forces to call for an end to the war on drugs which they argue feeds racism. All drugs currently deemed illicit - even crack cocaine and heroin - should be decriminalized as a matter of urgency, according to this new alliance. Legalisation and regulation should then follow with restrictions on age, advertising and licensing, they say. They have analysed evidence from over 150 studies and reports, concluding that prohibition unfairly affects Black people, damages communities, ...

A new study has found that spending time outdoors and switching off our devices is associated with higher levels of happiness during a period of COVID-19 restrictions. Previous academic studies have indicated how being outdoors, particularly in green spaces, can improve mental health by promoting more positive body image, and lowering levels of depression and anxiety. Jointly led by academics from Anglia Ruskin University (ARU) in the UK, the Karl Landsteiner University of Health Sciences in Austria, and Perdana University in Malaysia, this new research examined how levels ...

PHILADELPHIA--Medications to treat high blood pressure did not affect outcomes among patients hospitalized with COVID-19, found an international team led by researchers in the Perelman School of Medicine at the University of Pennsylvania. The study, published today in The Lancet Respiratory Medicine, is the first randomized controlled trial to show there is no risk for patients continuing these medications while hospitalized for COVID-19. As part of the REPLACE COVID trial, investigators examined whether ACE inhibitors (ACEIs) or Angiotensin Receptor Blockers (ARBs) -- two classes of medications to treat high blood pressure -- ...

Touted by makers as a "healthy" alternative to traditional nicotine cigarettes, new research indicates the chemicals found in e-cigarettes disrupt the gut barrier and trigger inflammation in the body, potentially leading to a variety of health concerns. In the study, published Jan. 5, 2021 in the journal END ...

Abu Dhabi, UAE, January 6, 2021: To provide effective aid to children who live in areas of conflict it is necessary to understand precisely how they have been impacted by the crises around them. One area of importance is the effect of conflict and trauma on a child's development and education. In a new paper, Global TIES for Children researchers J. Lawrence Aber, Carly Tubbs Dolan, Ha Yeon Kim, and Lindsay Brown, present a review of opportunities and challenges they have encountered in designing and conducting rigorous research that advances our understanding of this effect. Global TIES for Children, an international research center based at NYU Abu Dhabi and NYU New York, generates evidence to support the most effective humanitarian and development aid to promote children's ...

New research indicates adolescent offspring of the menacing sabre-toothed predator, Smilodon fatalis, were more momma's cubs than independent warriors. A new study by scientists at the Royal Ontario Museum (ROM) and University of Toronto, published January 7, 2021 in iScience¸ documents a family group of the sabre-toothed cats whose remains were discovered in present-day Ecuador. By studying the fossils, collected for the ROM in the early 1960s, the scientists were able to show that while the supersized Ice Age cats grew quite quickly, they also appeared to stay with their mother for longer than some other large cats before forging their own path. "This study started out as a simple description ...

Patients and healthcare providers at the Princess Margaret Cancer Centre rated virtual care during COVID-19 as highly satisfactory overall for quality of care and convenience, while at the same time saving patients millions in costs. Research led by Princess Margaret Radiation Oncologist Dr. Alejandro Berlin showed that virtual care can be implemented rapidly and safely across a highly-specialized and high-volume cancer centre. Eighty (80) per cent of patients reported they were either very satisfied or satisfied with it, citing convenience as a main ...

Wearing cooling vests during a COVID-19 shift ensures that nurses experience less heat during their work. During their shifts, nurses wear protective clothing for three hours in a row, during which the temperature can rise to as much as 36 degrees. The cooling vests offer such effective cooling that they are now part of the standard work clothing for nurses in the COVID nursing departments at Radboud university medical center. Due to the high level of contagiousness present with COVID-19, health care personnel have to work in protective clothing that is not ...

The "Executive Order on Promoting American Seafood Competitiveness and Economic Growth," issued by the Trump administration in May 2020, lays out a plan to expand the U.S. seafood industry, especially aquaculture, and enhance American seafood competitiveness in the global market. The goals of the directive are focused largely on growth and expansion of the industry, which includes wild-caught fisheries and farm-raised products, as well as recreation, processing and other industries that rely on fishing. "The seafood industry in general is worth about $200 billion and accounts for 2 million jobs in the United States," ...

Wuhan City in China was the first place to report COVID-19 in the world and--between December 2019 and May 2020--caused nearly two-thirds of all COVID-19 cases in China. Now, researchers reporting in PLOS Neglected Tropical Diseases have tested more than 60,000 healthy individuals in China for SARS-CoV-2 antibodies and concluded that thousands of Wuhan residents were infected with asymptomatic cases of COVID-19 after the infection was believed to be under control in China. Rapid antibody tests are used to diagnosis present and past infections with the SARS-CoV-2 virus that causes COVID-19; positive IgG antibodies suggests a previous infection while IgM antibodies mean a current or recent ...

A new computational analysis suggests that a vaccine or medication that could shorten the infectious period of COVID-19 may potentially prevent millions of cases and save billions of dollars. The study was led by Bruce Lee along with colleagues in the Public Health Informatics, Computational, and Operations Research (PHICOR) team headquartered at the CUNY Graduate School of Public Health and Health Policy and the Lundquist Research Institute at Harbor-UCLA Medical Center, and publishes in the open-access journal PLOS Computational Biology. While much of the ...

The fatal threat from diarrhoea and pneumonia to young children in the world's poorer countries can be drastically reduced by using traditional performing arts to encourage mothers to provide youngsters with safe food and water, a new study reveals. The Gambia, like many other Low- and Middle-income Countries (LMICs) faces high rates of under-five deaths due to diarrhoea and pneumonia - the two highest causes of death in this age group in this country and globally. Children transitioning from breastfeeding to eating food are at most risk, as complementary food becomes contaminated. Researchers working in The Gambia discovered that mothers' food safety and hygiene behaviours were massively improved by a low-cost behaviour change community ...

ANN ARBOR--A team of researchers has discovered an antibody that blocks the ability of the dengue virus to cause disease in mice. The findings open the potential for developing effective treatments and designing a vaccine for dengue and similar diseases. Dengue virus, a member of a group of viruses called flaviviruses, causes 50 to 100 million cases of dengue disease each year, with no effective treatment or vaccine. Other members of this group include the viruses that cause Zika, yellow fever and West Nile fever. In a new study scheduled to publish Jan. 8 in the journal Science, researchers from the University of California, Berkeley, and the University of Michigan revealed how an antibody called 2B7 neutralizes one specific protein made ...

Christina Krienke and colleagues have designed an mRNA vaccine that delayed the onset of and reduced the severity of multiple sclerosis-like disease in mice. The vaccine restores the body's tolerance to its own proteins, suppressing the characteristic immune overreactivity of the disease. The vaccine developed by Krienke et al. works in a targeted fashion to promote tolerance to specific disease-related proteins, an improvement over other approaches to treating the disease that induce systemic immune suppression that can leave an individual vulnerable to other ...

Policymakers around the world tend to reference new and highly cited COVID-19 research papers in their policy documents regarding the pandemic, Yian Yin and colleagues conclude after analyzing publications of both types from the first half of 2020. "Overall, this result shows that the coronavirus research used by policymakers aligns with what scientists heavily engage themselves," they write in a Policy Forum. Although government agencies produced more COVID-19 documents compared to think tanks and intergovernmental organizations such as the World Health Organization, Yin et al. found that governmental agencies are the least likely to cite science. Organizations like WHO are the most likely institutions to cite science, they write, suggesting that these organizations can act ...

Social contact can transfer the feeling of pain or fear in several animal species, including humans, but the exact neural mechanisms for this transmission are still being studied. Now, Monique Smith and colleagues demonstrate that the social transmission of pain and pain relief in mice is mediated by neural projections from the brain's anterior cingulate cortex (ACC) to the nucleus accumbens. The transfer of fear, however, is mediated by the ACC's projections into a different area of the brain called the basolateral amygdala. The findings help untangle the distinct neural circuits involved ...

Richard Tyser and colleagues have mapped the origins of the embryonic mouse heart at single-cell resolution, helping to define the cell types that make up the heart in the earliest days of development. Their techniques allowed them to identify for a first time a pool of progenitor cells that contributes to the formation of heart muscle cells as well as the early epicardium, the outermost layer of the heart. This layer provides cells and other proteins that guide the development and repair of heart tissue, so a better understanding of its origins could better inform regenerative heart therapies as well as improve ...

New treatments to cut the global death rate from dengue, Zika and West Nile viruses could result from research led by The University of Queensland. Associate Professor Daniel Watterson from UQ's School of Chemistry and Molecular Biosciences said the team identified an antibody that improved survival rates in laboratory trials and reduced the presence of virus in the blood. "We made a discovery in 2015 in the wake of the Zika outbreak that identified a new target for flavivirus treatments, a viral protein called NS1," Dr Watterson said. "Now we've shown for the first time that a single NS1 antibody can be protective against multiple flaviviruses including dengue, Zika and West Nile. "No other antibody reported has shown such a broad range of protection. "The improved ...

One essential component of each eukaryotic cell is the cytoskeleton. Microtubules, tiny tubes consisting of a protein called tubulin, are part of this skeleton of cells. Cilia and flagella, which are antenna-like structures that protrude from most of the cells in our body, contain many microtubules. An example of flagell is the sperm tail, which is essential for male fertility and thus for sexual reproduction. The flagellum has to beat in a very precise and coordinated manner to allow progressive swimming of the sperm. Failure to do so can lead to male infertility. Researchers at the Institut Curie in Paris, the Max Planck Institute of Molecular Cell Biology ...

Boulder, Colo., USA: The Yellowstone hotspot is well known for generating supereruptions in the geologic past that are far more explosive than historic examples. The origin and sustained longevity of the hotspot is less understood but is focused on two competing models, where the ascent of hot mantle is derived from either a deep-seated mantle plume or a shallow mantle source. In their study published this month in GSA Today, Vic Camp and Ray Wells use an integrated database that supports the idea of a deep mantle-plume origin for the Yellowstone hotspot with a robust history of magmatism that extends to at least 56 million years ago, far older than previously thought. In this scenario, hotspot ...

Large perennial grasses like miscanthus are a primary target for use as bioenergy crops because of their sustainability advantages, but they take several years to establish and aren't ideal for crop rotation. Maize and other annual crops are easier to manage with traditional farming but are tougher on the environment. Energy sorghum, a hefty annual plant with the ecological benefits of a perennial, may combine the best of both crops. A study by researchers at the U.S. Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation (CABBI) found that energy sorghum (Sorghum bicolor) behaves more like miscanthus in the way it efficiently captures light and uses water to produce abundant biomass. ...

Tapping into an ancient evolutionary survival mechanism, cancer cells enter into a sluggish, slow-dividing state to survive the harsh environment created by chemotherapy or other targeted agents. In research published January 7, 2020 in Cell, Princess Margaret Scientist Dr. Catherine O'Brien and team discovered that when under threat, all cancer cells - rather than just a subset - have the ability to transition into this protective state, where the cells "rest" until the threat, or chemotherapy, is removed. It is the first study to identify that cancer cells hijack an evolutionary conserved program to survive chemotherapy. Furthermore, the researchers show that novel therapeutic strategies aimed at specifically targeting ...

If you've ever been in an operating room where tools are used to simultaneously cut and cauterize human flesh, you know what surgical smoke is. The heat generated by these surgical tools produces vapors made up of aerosolized chemicals and substances that can be hazardous to health. Two new papers led by researchers in the University of Illinois Chicago College of Nursing suggest that policies and laws mandating the evacuation of surgical smoke from operating rooms are the best way to reduce the negative health impacts on perioperative staff as well as surgical patients. Surgical smoke poses a health risk to everyone in the operating room. The smoke can sometimes be thick enough to obscure vision, especially during longer operations where cauterizing tools are heavily used. Perioperative ...