Using real-time deformability cytometry, researchers at the Max-Planck-Zentrum für Physik und Medizin in Erlangen were able to show for the first time: Covid-19 significantly changes the size and stiffness of red and white blood cells - sometimes over months. These results may help to explain why some affected people continue to complain of symptoms long after an infection (long Covid). Shortness of breath, fatigue and headaches: some patients still struggle with the long-term effects of a severe infection by the SARS-CoV-2 coronavirus after six months or more. This post Covid-19 syndrome, also called long covid, is still not properly understood. What is clear is that -- during the ...

In two journal articles, a University of Houston biomedical researcher reports a step forward in diagnosing intestinal diseases, including colorectal cancer, ulcerative colitis and Crohn's disease using stool proteins. The current gold standard for colon cancer testing measures blood (hemoglobin) present in stool, and tests for inflammatory bowel disease (IBD) measure levels of calprotectin, a protein that detects inflammation in the intestines. "The unique aspect of both research reports is that we are looking at stool samples comprehensively, ...

INDIANAPOLIS - Ten IU School of Medicine researchers out of a team of 11 scientists, are responsible for the findings of a new study they conducted to investigate alternative ways to treat kidney infections. Their work, which is published in the high-quality research journal Nature Communications, examined how to utilize the kidneys' own internal infection fighting capabilities to treat and even prevent kidney infections, with the knowledge that eventually antibiotics won't work. According to statistics, urinary tract infections or UTIs are one of the most frequent bacteria-causing ...

A new class of illusion, developed by a visual artist and a psychology researcher, underscores the highly constructive nature of visual perception. The illusion, which the creators label "Scintillating Starburst," evokes illusory rays that seem to shimmer or scintillate--like a starburst. Composed of several concentric star polygons, the images prompt viewers to see bright fleeting rays emanating from the center that are not actually there. "The research illustrates how the brain 'connects the dots' to create a subjective reality in what we see, highlighting the constructive nature of perception," explains Pascal Wallisch, a clinical associate professor in New York University's Department ...

Six antibody characteristics could help scientists identify which pregnant women are at risk of placental malaria infections, finds a study published today in eLife. Malaria infections can be devastating for pregnant mothers, particularly during their first pregnancies. If malaria parasites invade the placenta, they can starve babies of nutrition, potentially causing low birth weight, preterm deliveries, stillbirths, and pregnancy loss. But not all women are susceptible to placental malaria infections, and the new study may help clinicians to identify those at risk and researchers to develop new therapies to protect pregnant women from malaria and related complications. A protein made by malaria parasites called VAR2CSA allows them to attach ...

New insight on how our experiences during a task or interaction shape our current mood has been published today in the open-access eLife journal. The study suggests that early experiences may have a larger effect on our mood than more recent events. These findings hold implications for the timing of events in experimental or clinical settings, and suggest new directions for mood interventions tailored to individual patients. People routinely report on their moods during everyday activities and when they interact with clinicians providing mental health care. It is commonly believed ...

Rising nighttime temperatures are curbing crop yields for rice, and new research moves us closer to understanding why. The study found that warmer nights alter the rice plant's biological schedule, with hundreds of genes being expressed earlier than usual, while hundreds of other genes are being expressed later than usual. "Essentially, we found that warmer nights throw the rice plant's internal clock out of whack," says Colleen Doherty, an associate professor of biochemistry at North Carolina State University and corresponding author of a paper on the work. "Most people think plants aren't dynamic, but they are. Plants are constantly regulating ...

A recent proof-of-concept study finds that a low-cost training program can reduce hazardous driving in older adults. Researchers hope the finding will lead to the training becoming more widely available. "On-road training and simulator training programs have been successful at reducing car accidents involving older drivers - with benefits lasting for years after the training," says Jing Yuan, first author of the study and a Ph.D. student at North Carolina State University. "However, many older adults are unlikely to have access to these training programs or technologies." "We developed a training program, ...

Populations of Drosophila suzukii fruit flies - so-called "spotted-wing Drosophila" that devastate soft-skinned fruit in North America, Europe and parts of South America - could be greatly suppressed with the introduction of genetically modified D. suzukii flies that produce only males after mating, according to new research from North Carolina State University. D. suzukii are modified with a female-lethal gene that uses a common antibiotic as an off switch. Withholding the antibiotic tetracycline in the diet of larvae essentially eliminates birth of female D. suzukii flies as the modified male flies successfully mate with females, says Max Scott, an NC State entomologist who is the corresponding author of a paper describing the research. "We use a genetic female-lethal system - a ...

Researchers from the Laboratory of Oncolytic-Virus-Immuno-Therapeutics (LOVIT) at the LIH Department of Oncology (DONC) are working on the development of novel anticancer strategies based on oncolytic viruses, "good" viruses that can specifically infect, replicate in and kill cancer cells. In particular, the LOVIT team elucidated the mechanism through which the H-1PV cancer-destroying virus can attach to and enter cancer cells, thereby causing their lysis and death. At the heart of this process lie laminins, and specifically laminin γ1, a family of proteins on the surface of a cancer cell to which this virus binds, and which therefore act as the 'door' through which the virus enters the cells. The findings, which were published in the prestigious ...

Beetles are creatures with built-in body armor. They are tiny tanks covered with hard shells, also known as exoskeletons, protecting their soft, skeleton-less bodies inside. In addition to providing armored protection, the beetle's exoskeleton offers functions like sensory feedback and hydration control. Notably, the exoskeletons of many beetles are also brilliantly colored and patterned, which enhances visual communication with other beetles and organisms. Ling Li, lead investigator and assistant professor in mechanical engineering, has joined colleagues from six other universities to investigate the interplay between mechanical and optical performance ...

Globally, more than 400 million people have diabetes, most of them suffering from type 2 diabetes. Before the onset of actual type 2 diabetes, people are often diagnosed with abnormalities in glucose metabolism that are milder than those associated with diabetes. The term used to indicate such cases is prediabetes. Roughly 5-10% of people with prediabetes develop type 2 diabetes within a year-long follow-up. Insulin resistance in muscle tissue is one of the earliest metabolic abnormalities detected in individuals who are developing type 2 diabetes, and the phenomenon is already seen in prediabetes. In a collaborative study, researchers from the University of Helsinki, the ...

URBANA, Ill. - Despite soybean's high protein and oil content and its potential to boost food security on the continent, Africa produces less than 1% of the world's soybean crop. Production lags, in part, because most soybean cultivars are bred for North and South American conditions that don't match African environments. Researchers from the Soybean Innovation Lab (SIL), a U.S. Agency for International Development-funded project led by the University of Illinois, are working to change that. In a new study, published in Agronomy, they have developed methods to help breeders improve soybean cultivars specifically for African environments, with the intention of creating fast-maturing ...

A new study highlights the University of Colorado Anschutz Medical Campus as an example of how an academic medical center can turn groundbreaking research into commercial products that improve patient care and public health. The paper, published recently in the Journal of Clinical and Translational Science, focuses on the unique ecosystem at CU Anschutz responsible for these innovations. And it specifically details the campus's collaborative culture and how biomedical research is commercialized. The campus has successfully turned academic research into a variety of products. CU Anschutz, for example, developed two vaccines for shingles, Zostavax and Shingrix, and ...

WASHINGTON, June 29, 2021 -- Biodegradable plastics are supposed to be good for the environment. But because they are specifically made to degrade quickly, they cannot be recycled. In Physics of Fluids, by AIP Publishing, researchers from the University of Canterbury in New Zealand have developed a method to turn biodegradable plastic knives, spoons, and forks into a foam that can be used as insulation in walls or in flotation devices. The investigators placed the cutlery, which was previously thought to be "nonfoamable" plastic, into a chamber filled with carbon dioxide. ...

The death of the dinosaurs 66 million years ago was caused by the impact of a huge asteroid on the Earth. However, palaeontologists have continued to debate whether they were already in decline or not before the impact. In a new study, published today in the journal Nature Communications, an international team of scientists, which includes the University of Bristol, show that they were already in decline for as much as ten million years before the final death blow. Lead author, Fabien Condamine, a CNRS researcher from the Institut des Sciences de l'Evolution de Montpellier (France), said: "We looked at the six most abundant dinosaur families through the whole of the Cretaceous, spanning from 150 to 66 million ...

WASHINGTON, June 29, 2021 -- As wind passes through a turbine, it creates a wake that decreases the downstream average wind velocity. The faster the spin of the turbine blades relative to the wind speed, the greater the impact on the downstream wake profile. For wind farms, it is important to control upstream turbines in an efficient manner so downstream turbines are not adversely affected by upstream wake effects. In the Journal of Renewable and Sustainable Energy, by AIP Publishing, researchers from the University of Illinois at Urbana-Champaign show by designing controllers based on viewing ...

WASHINGTON, June 29, 2021 -- Many meteorites, which are small pieces from asteroids, do not experience high temperatures at any point in their existence. Because of this, these meteorites provide a good record of complex chemistry present when or before our solar system was formed 4.57 billion years ago. For this reason, researchers have examined individual amino acids in meteorites, which come in a rich variety and many of which are not in present-day organisms. In Physics of Fluids, by AIP Publishing, researchers from Harvard University show the existence of a systematic group of amino acid polymers across several members ...

The oldest strain of Yersinia pestis--the bacteria behind the plague that caused the Black Death, which may have killed as much as half of Europe's population in the 1300s--has been found in the remains of a 5,000-year-old hunter-gatherer. A genetic analysis publishing June 29 in the journal Cell Reports reveals that this ancient strain was likely less contagious and not as deadly as its medieval version. "What's most astonishing is that we can push back the appearance of Y. pestis 2,000 years farther than previously published studies suggested," says senior author Ben Krause-Kyora, head of the aDNA Laboratory at the University of Kiel in Germany. ...

Ten million years before the well-known asteroid impact that marked the end of the Mesozoic Era, dinosaurs were already in decline. That is the conclusion of the Franco-Anglo-Canadian team led by CNRS researcher Fabien Condamine from the Institute of Evolutionary Science of Montpellier (CNRS / IRD / University of Montpellier), which studied evolutionary trends during the Cretaceous for six major families of dinosaurs, including those of the tyrannosaurs, triceratops, and hadrosaurs. Using a novel statistical modelling method that limited bias associated with gaps in the fossil record, they demonstrated that, for dinosaurs 76 million years ...

WASHINGTON, June 29, 2021 -- Computer simulations have been used with great success in recent months to visualize the spread of the COVID-19 virus in a variety of situations. In Physics of Fluids, by AIP Publishing, researchers explain how turbulence in the air can create surprising and counterintuitive behavior of exhaled droplets, potentially laden with virus. Investigators from the University of Florida and Lebanese American University carried out detailed computer simulations to test a mathematical theory they developed previously. They found nearly identical exhalations could spread in different ...

WASHINGTON, June 29, 2021 -- As pervasive as they are in everyday uses, like encryption and security, randomly generated digital numbers are seldom truly random. So far, only bulky, relatively slow quantum random number generators (QRNGs) can achieve levels of randomness on par with the basic laws of quantum physics, but researchers are looking to make these devices faster and more portable. In Applied Physics Letters, by AIP Publishing, scientists from China present the fastest real-time QRNG to date to make the devices quicker and more portable. The ...

What The Study Did: This study describes four patients who presented with acute myocarditis after mRNA COVID-19 vaccination. Authors: Raymond J. Kim, M.D., of the Duke Cardiovascular Magnetic Resonance Center in Durham, North Carolina, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/  (doi:10.1001/jamacardio.2021.2828) Editor's Note: The article includes conflict of interest disclosures. Please see the articles for additional information, including other authors, author contributions and affiliations, conflicts of interest and financial disclosures, and funding and support. INFORMATION: Media advisory: ...

What The Study Did: Researchers describe myocarditis presenting after COVID-19 mRNA vaccination in 23 patients within the Military Health System. Authors: Jay Montgomery, M.D., of Walter Reed National Military Medical Center in Bethesda, Maryland, and Margaret Ryan, M.D., M.P.H., of the Naval Medical Center San Diego, are the corresponding authors. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamacardio.2021.2833) Editor's Note: The article includes conflict of interest disclosures. Please see the articles for additional information, including other authors, author contributions and affiliations, conflicts of interest and financial disclosures, and funding ...

This press release is in support of a presentation by Dr Ruth Howie presented online at the 37th Annual Meeting of ESHRE. 29 June 2021: Cancer treatments can cause premature ovarian failure (POI) including in girls who want to become mothers eventually. Ovarian tissue cryopreservation (OTC) provides a future fertility option but is invasive, has risks and evidence indicates that most girls don't develop POI. So, doctors face the dilemma of how to offer OTC appropriately. Now, an assessment tool has been found to help predict correctly which female cancer patients aged under 18 years will develop POI and should therefore be offered OTC. Results from a long-term follow-up study of 423 girls and young women show nearly a quarter (24%; n = 9) of the 37 assessed as high ...