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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
Updated: 2 years 7 months ago

Anti-aging compound improves muscle glucose metabolism in people

Apr 22 2021 - 00:04
In the first clinical trial of nicotinamide mononucleotide (NMN), researchers at Washington University School of Medicine in St. Louis have found that the compound previously demonstrated to counteract aspects of aging and improve metabolic health in mice also has clinically relevant effects in people.
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Cannabis use disorder rate rose among pregnant women between 2001-2012

Apr 22 2021 - 00:04
Babies born to mothers diagnosed with cannabis use disorder are more likely to experience negative health outcomes, such as preterm birth and low birth weight, than babies born to mothers without a cannabis use disorder diagnosis, report UC San Diego researchers.
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Toxic masculinity: Y chromosome contributes to a shorter lifespan in male flies

Apr 22 2021 - 00:04
Males may have shorter lifespans than females due to repetitive sections of the Y chromosome that create toxic effects as males get older. These new findings appear in a study by Doris Bachtrog of the University of California, Berkeley published April 22 in PLOS Genetics.
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Medical record analysis links cannabis use disorder in pregnancy to infant health problems

Apr 22 2021 - 00:04
A new study of nearly five million live births recorded in California from 2001 to 2012 found that babies born to mothers diagnosed with cannabis use disorders at delivery were more likely to experience negative health outcomes, including preterm birth and low birth weight, compared to babies born to mothers without a cannabis use disorder diagnosis.
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China requires switch to zero-carbon energy to achieve more ambitious Paris Agreement goal, models S

Apr 22 2021 - 00:04
A new multi-model analysis suggests that China will need to reduce its carbon emissions by over 90% and its energy consumption by almost 40%, in order to meet the more ambitious target set by the 2016 Paris Agreement.
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Reprogramming fibroblasts could result in scar-free wound healing, suggests study in mice

Apr 22 2021 - 00:04
Researchers have determined a way to potentially minimize or eliminate scarring in wounded skin, by further decoding the scar-promoting role of a specific class of dermal fibroblast cells in mice.
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Mars has right ingredients for present-day microbial life beneath its surface, study finds

Apr 22 2021 - 00:04
New research suggests that rocks in the Martian crust could produce the same kind of chemical energy that supports microbial life deep beneath Earth's surface.
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A new method for fighting 'cold' tumors

Apr 22 2021 - 00:04
Researchers Michael Knitz and radiation oncologist and University of Colorado Cancer Center member Sana Karam, MD, PhD, address cold tumors in new research published this week in the Journal for ImmunoTherapy of Cancer. Working with mouse models in Karam's specialty area of head and neck cancers, Knitz and Karam studied the role of T cells in tumor treatment.
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Why the human body has not evolved to make childbirth easier -- or has it?

Apr 22 2021 - 00:04
Engineers at The University of Texas at Austin and University of Vienna revealed in new research a series of evolutionary trade-offs that have created a near-perfect balance between supporting childbirth and keeping organs intact on a day-to-day basis.
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Immune system, not COVID virus, may pose greatest risk to pregnant women

Apr 22 2021 - 00:04
A team of Yale scientists decided to investigate whether the virus could be affecting placental tissue of infected expectant mothers. Their analysis found that while evidence of the virus in the placenta is rare, the placenta in infected mothers tended to exhibit a much higher level of immune system activity than those of non-infected pregnant women, they report April 22 in the journal Med.
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Scientists uncover structure of light-driven enzyme with potential biofuel applications

Apr 22 2021 - 00:04
Although many organisms capture and respond to sunlight, enzymes - proteins that catalyze biochemical reactions - are rarely driven by light. A new study captures the full cycle of complex structural changes in an enzyme called FAP as it transforms a fatty acid into alkanes or alkenes.
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MERS DNA vaccine induces immunity, protects from virus challenge in preclinical model

Apr 22 2021 - 00:04
A synthetic DNA vaccine candidate for Middle East respiratory syndrome coronavirus (MERS-CoV) developed at Wistar induced potent immune responses and afforded protective efficacy in non-human primate models when given intradermally in abbreviated, low-dose immunization regimen.
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Researchers identify predictive factors of delirium in Sub-Saharan Africa

Apr 22 2021 - 00:04
Severity of illness, history of stroke, and being divorced or widowed were independently predictive of delirium in hospitalized patients in Zambia, according to a study published in PLOS ONE.
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Researchers show how 'theory of mind' influences advertising skepticism

Apr 22 2021 - 00:04
Product marketers should be clear in their messaging to avoid customer skepticism that makes them feel duped, according to University of Oregon research. At issue in a new study was a social-cognitive construct called theory of mind, which considers how well people assess the mental states and apparent goals of others. Turns out, it affects a person's evaluation and willingness to buy a product.
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Stress test finds cracks in the resistance of harmful hospital bugs

Apr 22 2021 - 00:04
Research has identified critical factors that enable dangerous bacteria to spread disease by surviving on surfaces in hospitals and kitchens.
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Ground and satellite observations map building damage after Beirut explosion

Apr 22 2021 - 00:04
Days after the 4 August 2020 massive explosion at the port of Beirut in Lebanon, researchers were on the ground mapping the impacts of the explosion in the port and surrounding city. The goal was to document and preserve data on structural and façade damage before rebuilding.
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3D printed models provide clearer understanding of ground motion

Apr 22 2021 - 00:04
It seems like a smooth slab of stainless steel, but look a little closer, and you'll see a simplified cross-section of the Los Angeles sedimentary basin. Caltech researcher Sunyoung Park and her colleagues are printing 3D models like the metal Los Angeles proxy to provide a novel platform for seismic experiments.
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Can machine learning improve debris flow warning?

Apr 22 2021 - 00:04
Machine learning could provide up an extra hour of warning time for debris flows along the Illgraben torrent in Switzerland, researchers report at the Seismological Society of America (SSA)'s 2021 Annual Meeting
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Blacks, hispanics, impoverished have worse survival rates among teens, adults under 40 with cancer

Apr 22 2021 - 00:04
DALLAS - April 22, 2021 - Being Black or Hispanic, living in high-poverty neighborhoods, and having Medicaid or no insurance coverage are associated with higher mortality in men and women under 40 with cancer, a review by UT Southwestern Medical Center researchers found.
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COVID-19 vaccine development built on >$17 billion in NIH funding for vaccine technologies

Apr 22 2021 - 00:04
The unprecedented development of COVID-19 vaccines less than a year after discovery of this virus was enabled by more than $17 billion of research on vaccine technologies funded by the NIH prior to the pandemic, according to new research from Bentley University's Center for Integration of Science and Industry. The article, "NIH funding for vaccine readiness before the COVID-19 pandemic," demonstrates the critical role this broad foundation of government-funded research plays in ensuring vaccine readiness.
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