Month: <span>December 2021</span>

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Mathematical model of light and circadian data improves sleep timing in people with schizophrenia
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Mathematical model of light and circadian data improves sleep timing in people with schizophrenia

by  University of Surrey Typical rhythms of sleep, activity and light exposure. (a), (d): Light (yellow trace), activity (gray trace), 6-sulphatoxymelatonin (aMT6s) acrophase (red circles) and sleep timing (horizontal gray bars). (b) and (e): Average pattern of light exposure across the 24-h day. The shaded regions from white through to dark gray indicate the fraction of...

Novel immune cell population may trigger inflammation in multiple sclerosis and other brain disorders
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Novel immune cell population may trigger inflammation in multiple sclerosis and other brain disorders

by  Weill Cornell Medical College Inflammatory lesion in the spinal cord of a mouse model of multiple sclerosis demonstrating the presence of ILC3 (green) or T cells (red). Credit: Dr. Christopher N. Parkhurst. A group of immune cells that normally protect against inflammation in the gastrointestinal tract may have the opposite effect in multiple sclerosis (MS)...

New way to identify early risks of cardiovascular disease
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New way to identify early risks of cardiovascular disease

by  Karolinska Institutet Credit: Unsplash/CC0 Public Domain The risk of developing cardiovascular disease is strongly associated with the “bad” LDL cholesterol. A large study by scientists at Karolinska Institutet now shows that two proteins that transport cholesterol particles in the blood provide early and reliable risk information. The researchers now advocate introducing new guidelines for detecting...

Unconventional T cells promote immunity to malaria
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Unconventional T cells promote immunity to malaria

by  Monash University Alphonse Levaran’s drawings of malaria parasites invading red blood cells in the year 1880, now updated with new research showing that the immune system adapts to protect us from disease. Credit: Artwork created by Dr Erica Tandoori. Monash University’s Biomedicine Discovery Institute researchers have made a vital breakthrough in the understanding of a...

Covid: Trigger of rare blood clots with AstraZeneca jab found by scientists
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Covid: Trigger of rare blood clots with AstraZeneca jab found by scientists

By James GallagherHealth and science correspondent IMAGE SOURCE,GETTY IMAGES Scientists believe they have found “the trigger” that leads to extremely rare blood clots after the Oxford-AstraZeneca Covid vaccine. The team – in Cardiff and the US – have shown in exquisite detail how a protein in the blood is attracted to a key component of the...

New data suggests 1 in 44 US children affected by autism
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New data suggests 1 in 44 US children affected by autism

By LINDSEY TANNER FILE – A student arrives as the sun rises during the first day of school on Wednesday, Aug. 4, 2021 at Freeman Elementary School in Flint, Mich. New autism numbers released Thursday, Dec. 2 suggest more U.S. children are being diagnosed with the developmental condition and at younger ages. (Jake May/The Flint...

Older MS patients who discontinue medications experience worsening of their disease
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Older MS patients who discontinue medications experience worsening of their disease

by Ellen Goldbaum, University at Buffalo Credit: BruceBlaus/Wikimedia Commons, CC BY-SA 4.0 In recent years, new drugs to treat multiple sclerosis have significantly improved both the quality of life and longevity for patients with MS. Many of them now live well into their 60s and70s, a significant improvement from just a generation ago when few...

Can seven questions determine how wise you are?
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Can seven questions determine how wise you are?

by Scott Lafee, University of California – San Diego Dilip V. Jeste, MD, is the senior author of the study and senior associate dean for the Center of Healthy Aging and Distinguished Professor of Psychiatry and Neurosciences at UC San Diego School of Medicine. Credit: Erik Jepsen/UCPA Researchers at University of California San Diego School...

Untangling the immune response to vaccines
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Untangling the immune response to vaccines

by Allessandra Dicorato, Broad Institute of MIT and Harvard Credit: Ricardo Job-Reese, Broad Communications The COVID-19 pandemic has turned a spotlight on the importance of vaccines, but also on key gaps in scientific understanding of how the immune system reacts to vaccines in general. Why does the immune response to some vaccines differ from person...

ALS therapy should target brain, not just spine
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ALS therapy should target brain, not just spine

by Northwestern University Credit: CC0 Public Domain The brain is indeed a target for treating ALS (amyotrophic lateral sclerosis), Northwestern Medicine scientists have discovered. This flips a long-standing belief that the disease starts in the spinal motor neurons and any therapy would need to target the spine as the key focus. A new Northwestern study...