Posts by AAAS
A ‘cell-less’ therapy may regenerate heart tissue without cell transplant risks
Researchers have developed a strategy that uses exosomes – tiny membrane-bound sacs secreted by cells – to mimic the heart-regenerating effects of cardiac cell transplants …
Read Full ArticleDNA nanoswitches rapidly detect SARS-CoV-2 and other emerging viruses
Programmable DNA nanoswitches that bind to viral RNA in human body fluids may provide an inexpensive platform to rapidly detect a wide variety of emerging viruses, including SARS-CoV-2 …
Read Full ArticleTargeting a conserved cell pathway may offer treatments for numerous viruses, including SARS-CoV-2
A small molecule inhibits multiple different viruses, including SARS-CoV-2, in tissue culture and in mice by targeting the same signaling pathway. …
Read Full ArticleAging-associated inflammation may worsen COVID-19 outcomes in older adults
The increased severity and mortality of SARS-CoV-2 infections in older adults may be related to inflammaging – an age-associated phenomenon of increased general inflammation. …
Read Full ArticleImmune analysis in fifty patients uncovers ‘hallmark’ of severe COVID-19
Researchers in France identified a unique signature for severe COVID-19 – a combination of deficiency in a particular interferon response, as well as exacerbated inflammation. …
Read Full ArticleSARS-CoV-2-attacking T cells found in COVID-19 patients and some uninfected individuals
COVID-19 patients with severe respiratory symptoms can rapidly generate coronavirus-attacking T cells, and can increase this production over time. …
Read Full ArticleA causal link between long-term exposure to fine air particles and greater mortality in elderly Americans
A new analysis provides broad evidence that long-term exposure to fine particles in the air leads to increased mortality rates among the elderly. …
Read Full ArticleFirst cases of COVID-19 in New York City primarily from European and US sources
A new molecular epidemiology study found that the first confirmed COVID-19 cases in New York City arose mostly through untracked transmission of the virus from Europe and other parts of the United States. …
Read Full ArticleHuman enzymes edit SARS-CoV-2 RNA, perhaps fueling the virus’ evolution
Two human deaminase enzymes edit the RNA of the SARS-CoV-2 virus, perhaps contributing to viral evolution and spread. …
Read Full ArticleInactivated vaccine candidate protects macaques from SARS-CoV-2 infection
In mice, rats, and nonhuman primates, a newly developed SARS-CoV-2 virus vaccine candidate induced antibodies that neutralized several different SARS-CoV-2 strains. …
Read Full Article