Northwestern University researchers have uncovered a new vulnerability in the novel coronavirus’ infamous spike protein — illuminating a relatively simple, potential treatment pathway. The spike protein contains the virus’ binding site, which adheres to host cells and enables the virus to enter and infect the body. Using nanometer-level simulations, the researchers discovered a positively…
Researchers at the University of Delaware, using supercomputing resources and collaborating with scientists at Indiana University, have gained new understanding of the virus that causes hepatitis B and the "spiky ball" that encloses the virus's genetic blueprint.
Smoking is strongly linked to lower use of cancer screening services by women, and more advanced disease once cancer is diagnosed, new research reveals. Tobacco use is falling in many parts of the world, but it’s falling less rapidly among women than it is among men. And lung cancer remains the leading cause of cancer death among women, say the researchers. The evidence also suggests that women…
Women are more likely than men to suffer adverse side effects of medications because drug dosages have historically been based on clinical trials conducted on men, suggests new research from UC Berkeley and the University of Chicago. Researchers analyzed data from several thousand medical journal articles and found clear evidence of a drug dose gender gap for 86 different medications approved by…
In order to combat bacterial wound infections, Empa researchers have developed cellulose membranes equipped with antimicrobial peptides. Initial results show: The skin-friendly membranes made of plant-based materials kill bacteria very efficiently. If germs invade a wound, they can trigger a long-lasting infection that may fail to heal or even spread throughout the body, leading to…
A rather unique trial in the UK currently explores the capability of dogs to detect coronavirus infections in humans with their highly sensitive noses. The researchers are asking people in England for help with the trial. Led by the ARCTEC team at the London School of Hygiene & Tropical Medicine (LSHTM) in collaboration with the charity Medical Detection Dogs and Durham University, the trial…
Pupil size predicts death and hospital readmission in patients with heart failure, according to new research. “Our results suggest that pupil area is a novel way to identify heart patients at elevated risk of death or hospital readmission,” said study author Dr. Kohei Nozaki of Kitasato University Hospital, Kanagawa, Japan. “This provides an opportunity to intervene and improve outlook.”
A new mathematical model is helping develop the current understanding of how airborne diseases such as COVID-19 can spread during breathing and aerosol generating procedures. Researchers from Heriot-Watt University and the University of Edinburgh have developed a mathematical model of droplet migration. Dr Cathal Cummins of Heriot-Watt’s School of Mathematical and Computer Sciences and…
As the COVID-19 pandemic continues to claim lives around the world, much research has focused on the immune system’s role in patients who become seriously ill. A popular theory has it that the immune system gets so revved up fighting the virus that, after several days, it produces a so-called cytokine storm that results in potentially fatal organ damage, particularly to the lungs.
Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed a synthetic peptide that can make multidrug-resistant bacteria sensitive to antibiotics again when used together with traditional antibiotics, offering hope for the prospect of a combination treatment strategy to tackle certain antibiotic-tolerant infections.
A collaboration led by the Royal Ontario Museum (ROM) and McMaster University has led to the discovery and diagnosis of an aggressive malignant bone cancer — an osteosarcoma — for the first time ever in a dinosaur. Examples of malignant cancers are very rare in the fossil record. The paper was published in the journal The Lancet Oncology. The cancerous bone in question is the fibula (lower…
Genes that are thought to play a role in how the SARS-CoV-2 virus infects our cells have been found to be active in embryos as early as during the second week of pregnancy, say scientists at the University of Cambridge and the California Institute of Technology (Caltech). The researchers say this could mean embryos are susceptible to COVID-19 if the mother gets sick, potentially affecting the…
Contrary to what has been generally assumed so far, a severe course of COVID-19 does not solely result in a strong immune reaction – rather, the immune response is caught in a continuous loop of activation and inhibition.
Scientists from Nanyang Technological University, Singapore (NTU Singapore) and the Agency for Science, Technology and Research (A*STAR) have showed that applying “temporal pressure” to the skin of mice can create a new way to deliver drugs. In a paper published in Science Advances, the researchers showed that bringing together two magnets so that they pinch and apply pressure to a fold of…
Four stranded DNA structures – known as G-quadruplexes – have been shown to play a role in certain types of breast cancer for the first time, providing a potential new target for personalised medicine, say scientists at the University of Cambridge. In 1953, Cambridge researchers Francis Crick and James Watson co-authored a study published in the journal Nature which showed that DNA in our…
A diet high in sugar increases the likelihood of developing pancreatic cancer in some people and can also drive the aggressive growth of tumours, a new study finds. During this study, researchers from the University of Surrey, VIB-KU Leuven, Belgium and the Babraham Institute in Cambridge, sought to understand the impact of diet on the development and progression of pancreatic cancer. This rare…
Antibiotic resistance is an increasing battle for scientists to overcome, as more antimicrobials are urgently needed to treat biofilm-associated infections. However, scientists from the School of Life Sciences at the University of Warwick say research into natural antimicrobials could provide candidates to fill the antibiotic discovery gap.
A significant number of patients reported a deterioration in their hearing when questioned eight weeks after discharge from a hospital admission for COVID-19, according to University of Manchester audiologists, in a study supported by the NIHR Manchester Biomedical Research Centre (BRC). One hundred and twenty one of the adults admitted to Wythenshawe Hospital, part of Manchester University NHS…
A ‘pill on a string’ test can identify ten times more people with Barrett’s oesophagus than the usual GP route, a new study shows. The test, which can be carried out by a nurse in a GP surgery, is also better at picking up abnormal cells and potentially early-stage cancer. Barrett’s oesophagus is a condition that can lead to oesophageal cancer in a small number of people. It’s usually…
A team of scientists at the Russian National University of Science and Technology MISiS, together with colleagues from Russia and Germany, have presented a detailed study of magnetite-gold nanohybrids. In the future, such nanoparticles can help in theranostics — the diagnostics and subsequent therapy of oncological diseases. The results of the work have been published in the Journal of…
Disruption of gut bacteria by antibiotics soon after birth can affect the maturation of the immune system, say researchers at Rutgers University-New Brunswick. Even short, single antibiotic courses given to young animals can predispose them to inflammatory bowel disease (IBD) when they are older, according to their research. The study, published in Genome Medicine, provides further evidence…
A team of British and American scientists have discovered a way to slow the growth of breast cancer stem cells in the lab. The study led by Dr Bruno Simões and Professor Rob Clarke from The University of Manchester could eventually lead to combination drug therapies on previously untreatable breast cancers. Around three quarters of women who have breast cancer have what are known as oestrogen…
Tiny finger-like projections called filopodia drive invasive behavior in a rare subset of lung cancer cells, researchers at Winship Cancer Institute of Emory University have found. Adam Marcus’ lab has developed innovative techniques for separating “leaders” and “followers,” subpopulations of tumor cells that cooperate during the process of metastasis. The lab’s new analysis of what…
As the COVID-19 pandemic continues, finding a treatment to effectively fight the disease remains a major research challenge. Researchers from Inserm, CNRS, Université Claude Bernard Lyon 1 and ENS Lyon within the International Center for Infectious Disease Research (CIRI) have developed a unique strategy for selection, evaluation and repositioning of drugs already on the market to assess their…
Existing limited evidence suggests that wearing face coverings to protect against COVID-19 does not lead to a false sense of security and is unlikely to increase the risk of infection through wearers foregoing other behaviours such as good hand hygiene, say researchers from the University of Cambridge and King’s College London.