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.
The ability of the human brain to process and store information is determined to a large extent by the connectivity between nerve cells. Chemical synapses are very important in this context as they constitute the interface for the transmission of information between individual nerve cells. Abnormalities in the formation of synapses cause many neurological disorders such as autism. Neurobiologists…
There are at least 10 risk factors that appear to have a significant impact on a person’s likelihood of developing Alzheimer’s disease that could be targeted with preventative steps, new research suggests. Focusing on these factors, which include cognitive activity, high body mass index in late life, depression, diabetes, and high blood pressure, could provide clinicians with an evidence…
A team of scientists at Oxford University’s Jenner Institute and Oxford Vaccine Group has taken the next step towards the discovery of a safe, effective and accessible vaccine against coronavirus. The results of the Phase I/II trial published in the scientific journal, The Lancet, indicate no early safety concerns and induces strong immune responses in both parts of the immune system.
Although its name is relatively unspecific and indeed opaque, the Nonstructural Protein 1 (Nsp1) encoded by the coronavirus SARS-CoV-2, which is responsible for the current pandemic, has now been shown to have a devastating effect on host cells. Nsp1 is in fact one of the central weapons used by the virus to ensure its own replication and propagation in human hosts. Nsp1 was identified as a…
Cold Spring Harbor Laboratory (CSHL) Associate Professor Mikala Egeblad and her colleagues describe a newly understood way by which breast cancer cells sabotage a key player in the body’s immune system. That key player provides local immune surveillance by activating killer T-cells, but if it cannot mature and do its job, breast cancer cells can escape detection from the immune system,…
The T cells, along with antibodies, are an integral part of the human immune response against viral infections due to their ability to directly target and kill infected cells. A Singapore study has uncovered the presence of virus-specific T cell immunity in people who recovered from COVID-19 and SARS, as well as some healthy study subjects who had never been infected by either virus.
Which patient will develop a severe form of COVID-19? This is an essential question which must be answered in order to improve the individual management and the prognosis of these patients. In a publication in the journal Science, teams from the Assistance publique – Hôpitaux de Paris (AP-HP), Inserm, Université de Paris, Institut Pasteur and Institut Imagine describe a unique and unexpected…
As cells develop, changes in how our genes interact determines their fate. Differences in these genetic interactions can make our cells robust to infection from viruses or make it possible for our immune cells to kill cancerous ones. Understanding how these gene associations work across the development of human tissue and organs is important for the creation of medical treatments for complex…
A gene has been discovered that can naturally suppress the signs of Alzheimer’s Disease in human brain cells, in research led by Queen Mary University of London. The scientists have also developed a new rapid drug-screening system for treatments that could potentially delay or prevent the disease. The main challenge in testing Alzheimer’s drugs in clinical trials is that participants need to…
A new study sheds light on proteins in particles called extracellular vesicles, which are released by tumor cells into the bloodstream and promote the spread of cancer. The findings suggest how a blood test involving these vesicles might be used to diagnose cancer in the future, avoiding the need for invasive surgical biopsies.
It remains one of the key questions of the current corona pandemic: Why do people infected with SARS-CoV-2 experience varying degrees of COVID-19, the disease which it triggers? Researchers, led by Professor Mascha Binder from University Hospital Halle (Saale), have investigated more than 14 million receptor sequences of B and T cells, i.e. immune cells, obtained from blood samples of COVID-19…
Coupling function with fashion, cloth and home-sewn face masks are available in a variety of forms and fabrics. While experts underscore that wearing a mask is effective in helping to prevent the spread of COVID-19, not all masks — or the materials with which they’re made — contain virus particles equally. In a new video, University of Wisconsin–Madison engineer Scott Sanders demonstrates…