by the University of Montreal Arhgef7 is required for Netrin-1–mediated commissural axon guidance. (A) The mean mRNA expression, fragments per kilobase of transcript per million mapped reads (fpkm), (± SEM) of Arhgef7 and Dcc in dissociated commissural neurons (n = 3). (B) Dissociated commissural neurons were fixed and immunostained for Arhgef7 and Dcc. Scale bar,...
Scientists have developed a specially engineered biochip that uses electricity to heal wounds up to three times faster than normal. It’s well known that electric fields can guide the movements of skin cells, nudging them towards the site of an injury for instance. In fact, the human body generates an electric field that does this naturally. So...
GENETICS A team of Harvard Medical School scientists say they’ve come up with a new drug cocktail of molecules that they say can successfully regenerate the hair cells in the inner ear that enable hearing — a potentially groundbreaking treatment for hearing loss. As detailed in a new paper published in the Proceedings of the National Academy of Sciences,...
By Jason Mast April 13, 2023 Reprints Hibernating bears in Sweden have become enticing research subjects. COURTESY OLE FRØBERT Like many cardiologists, Manuela Thienel spends most days in the chlorinated, temperature-controlled halls of a large hospital. But one week in February 2019, her work brought her to a snowy Swedish forest, where she stood shuddering...
Researchers at Linköping University in Sweden have developed a method whereby the body can ‘grow its own’ electrodes. The minimally invasive technique involves injecting a hydrogel that is laden with enzymes into target tissues. The enzymes interact with molecules that are present in the tissue to change the structure of the gel and allow it...
By Michael Irving, November 09, 2022 A new clinical trial has identified specific neurons that are stimulated to help improve mobility in paralyzed patients. NeuroRestore – Jimmy Ravier Electrical stimulation of the spine can help paralyzed people walk again, with promising results shown in clinical trials. Now, scientists have identified the specific neurons being stimulated...
by University of York Diagram of the brain of a person with Alzheimer’s Disease. Credit: Wikipedia/public domain. Scientists have used a mathematical model to reveal how toxic proteins cluster together inside the brain during the early stages of Alzheimer’s. The researchers, from the University of York’s School of Physics, Engineering and Technology, say the discovery...
by Sarah C.P. Williams, University of California, San Francisco Myeloid immune cells alongside red blood cells in an electron micrograph of human blood. Credit: National Cancer Institute Using new technologies to study thousands of genes simultaneously within immune cells, researchers at Gladstone Institutes, UC San Francisco (UCSF), and Stanford School of Medicine have created the most...
Ewen Callaway Study participants reported symptoms typical of other respiratory infections such as runny noses and sore throats — fevers were less common.Credit: Morteza Nikoubazl/NurPhoto via Getty Healthy, young people who were intentionally exposed to the SARS-CoV-2 coronavirus developed mild symptoms — if any at all — finds a first-of-its-kind COVID-19 human challenge study. Such...
Antibiotic resistance makes our medicine useless against common bacterial infections. This is a dangerous situation, which leads to increased doses of common antibiotics. Scientists are looking for new medicine and even ways for introducing genetic mutations to bacteria to reduce their resistance. But an international team of researchers have a different alternative solution – existing...
