by Anne Doerr, Yale University The human papillomavirus (HPV) is the main cause of several cancers, including cervical cancer, which kills almost 300,000 women around the world each year. Although vaccines offer a proven first line of defense against HPV infection, researchers continue to look for additional options to guard against the virus. In a...
Stroke: When the system fails for the second time
by Max Planck Society After a stroke, there is an increased risk of suffering a second one. If areas in the left hemisphere were affected during the first attack, language is often impaired. In order to maintain this capability, the brain usually briefly drives up the counterparts on the right side. But what happens after...
Old human cells rejuvenated with stem cell technology, research finds
by Stanford University Medical Center Old human cells return to a more youthful and vigorous state after being induced to briefly express a panel of proteins involved in embryonic development, according to a new study by researchers at the Stanford University School of Medicine. The researchers also found that elderly mice regained youthful strength after...
Antibodies in the brain trigger epilepsy
Study by the University of Bonn may enable new therapies against certain forms of the disease UNIVERSITY OF BONN Certain forms of epilepsy are accompanied by inflammation of important brain regions. Researchers at the University of Bonn have now identified a mechanism that explains this link. Their results may also pave the way to new...
Scientists reveal how proteins team up to repair DNA
New insight on DNA repair in yeast adds to our understanding of why DNA repair processes fail to function properly in disease ELIFE Scientists have revealed an important mechanism in the repair of DNA double-strand breaks, according to new research published today in eLife. The discovery will help our understanding of why DNA repair processes...
Development of a solid material capable of slowly releasing H2S and NO
Controlled release technology will facilitate medical use of physiologically active gases NATIONAL INSTITUTE FOR MATERIALS SCIENCE, JAPAN NIMS has developed a solid material capable of slowly releasing hydrogen sulfide (H2S) and nitric oxide (NO) when exposed to air. These gases can induce physiologically favorable effects at low concentrations (e.g., reducing inflammation and expanding blood vessels)....
Discovery that cells inject each other opens new line of attack on cancer
Diversity lets cancer cells escape UNIVERSITY OF SYDNEY Although most cancer cells are killed by chemotherapy, individual cells vary in their sensitivity, so that some cancer cells often escape. Diversity among cancer cells is thus an issue for cancer treatment. Previously diversity was thought to be mostly due to genetic variability among cancer cells. Now,...
Crumpled graphene makes ultra-sensitive cancer DNA detector
UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN, NEWS BUREAU CHAMPAIGN, Ill. — Graphene-based biosensors could usher in an era of liquid biopsy, detecting DNA cancer markers circulating in a patient’s blood or serum. But current designs need a lot of DNA. In a new study, crumpling graphene makes it more than ten thousand times more sensitive to...
Researchers develop language test for people with Fragile X syndrome
NIH/EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH AND HUMAN DEVELOPMENT Researchers have developed a test to measure the expressive language skills of people with Fragile X syndrome, a genetic disorder that may result in intellectual disability, cognitive impairment and symptoms of autism spectrum disorder. Expressive language refers to the use of words to convey...
Adjusting processing temperature results in better hydrogels for biomedical applications
Using different temperatures creates sturdier hydrogels for tissue repair, surgical sealants and 3D printing AMERICAN INSTITUTE OF PHYSICS WASHINGTON, March 24, 2020 — Biohydrogels — biomaterials composed of polymer chains dispersed in water — have been studied closely by researchers for their potential use in biomedical applications, such as in tissue repair, as surgical sealants,...