Month: <span>June 2022</span>

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Regenerating the heart after an attack
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Regenerating the heart after an attack

by University of Montreal Graphical abstract. Credit: Circulation Research (2022). DOI: 10.1161/circresaha.121.319929 Heart attacks are damaging, and the severity depends on how long blood flow has been interrupted; when temporarily deprived of oxygen, heart cells die. In addition, the heart can’t rebuild its own tissue, leading to its failure, the main cause of mortality and morbidity worldwide....

Brain changes linked to emotion discovered in mysterious ‘broken heart syndrome’
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Brain changes linked to emotion discovered in mysterious ‘broken heart syndrome’

by University of Aberdeen Credit: Unsplash/CC0 Public Domain Changes in areas of the brain associated with emotion have been identified in people with Takotsubo syndrome, sometimes known as broken heart syndrome, according to research by the University of Aberdeen. The study, presented at the British Cardiovascular Society centenary conference in Manchester, also discovered changes in...

How our brain processes and stores movement has implications for multiple diseases, machine learning
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How our brain processes and stores movement has implications for multiple diseases, machine learning

by Technion – Israel Institute of Technology hree pyramidal nerve cells in the motor cortex, whose job it is to send the motor commands directly to the spinal cord. These are the cells studied in Prof. Schiller’s current study. The cells are characterized by a pyramidal shape of the cell bodies and highly branched dendritic...

A Negative COVID Test Has Never Been So Meaningless
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A Negative COVID Test Has Never Been So Meaningless

By Katherine J. Wu Getty; The Atlantic JUNE 10, 2022 In early May, 27-year-old Hayley Furmaniuk felt tired and a bit congested, but after rapid-testing negative for the coronavirus two days in a row, she dined indoors with friends. The next morning, her symptoms worsened. Knowing her parents were driving in for Mother’s Day, she tested...

New CRISPR-based map ties every human gene to its function
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New CRISPR-based map ties every human gene to its function

by Eva Frederick, Massachusetts Institute of Technology Data for a new gene-function map are available for other scientists to use. “It’s a big resource in the way the human genome is a big resource, in that you can go in and do discovery-based research,” says Professor Jonathan Weissman. Credit: Jen Cook-Chrysos/Whitehead Institute The Human Genome...

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US Spends Most on Cancer Care, but Does Not Have Lowest Mortality

Roxanne Nelson, RN, BSN June 09, 2022 A new analysis shows that the United States spends twice as much on cancer care as the average high-income country, but its cancer mortality rates are only slightly better than average. “The US is spending over $200 billion per year on cancer care — roughly $600 per person,...

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Tiny Proteins’ Big Role in Autoimmune Disease Lupus

Between 5-8% of the human genome consists of sequences with the viral origin, namely endogenous retroviruses. These are old pieces of viral genomes that once, millions of years ago, infected our cells and branded them with their DNA sequences. Although endogenous retroviruses no longer code for viral proteins they were once intended to build, their RNA...

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How Cells Navigate in Messy Environments

Your cells need to get around. For example, immune cells must roam around your body to locate sites of infection, and neurons must migrate to specific positions in the brain during development. But cells do not have eyes to see where they are going. Instead, like a dog sniffing out the source of some delicious...

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A unique insight into the inner workings of our cellular power plants

Using advanced microscopy techniques, researchers at Karolinska Institutet and Stockholm University have visualized in unprecedented detail the machinery that the cells’ powerhouses, the mitochondria, use to form their proteins. The results, published in Nature, raise hopes for more specific antibiotics and new cancer drugs in the future. The mitochondria are the cells’ powerhouses that convert energy locked...