(Press-News.org) In a surprise find, scientists have discovered sugar-coated RNA molecules decorating the surface of cells.
These so-called "glycoRNAs" poke out from mammalian cells' outer membrane, where they can interact with other molecules. This discovery, reported May 17, 2021, in the journal Cell, upends the current understanding of how the cell handles RNAs and glycans.
"This was probably the biggest scientific shock of my life," says study author END
Some RNA molecules have unexpected sugar coating
2021-05-17
ELSE PRESS RELEASES FROM THIS DATE:
New technology converts waste plastics to jet fuel in an hour
2021-05-17
PULLMAN, Wash. -- Washington State University researchers have developed an innovative way to convert plastics to ingredients for jet fuel and other valuable products, making it easier and more cost effective to reuse plastics.
The researchers in their reaction were able to convert 90% of plastic to jet fuel and other valuable hydrocarbon products within an hour at moderate temperatures and to easily fine-tune the process to create the products that they want. Led by graduate student Chuhua Jia and Hongfei Lin, associate professor in the Gene and Linda Voiland School of Chemical Engineering and Bioengineering, they report on their work in the journal, ...
Face covering in school-aged children with autism spectrum disorders, ADHD
2021-05-17
What The Study Did: Researchers assessed the feasibility of using positive behavior supports to promote the use of face coverings in school-aged children with autism spectrum disorders and/or attention-deficit/hyperactivity disorder (ADHD) attending a summer program during the COVID-19 pandemic.
Authors: Benjamin Aaronson, Ph.D., of the University of Washington in Seattle, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2021.10281)
Editor's Note: The article includes conflicts of interest disclosures. Please see the article for additional information, including other authors, author ...
Hospitalizations for ischemic stroke before, during COVID-19 pandemic
2021-05-17
What The Study Did: Hospital discharge rates, hospitalization outcomes and demographic factors were examined among U.S. patients with ischemic stroke before and during the COVID-19 pandemic.
Authors: Adam de Havenon, M.D., of the University of Utah in Salt Lake City, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2021.10314)
Editor's Note: The article includes conflict of interest and funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest ...
Home birth information seeking in US, UK during COVID-19 pandemic
2021-05-17
What The Study Did: Online search data were used to assess changes in home birth information seeking across the United States and United Kingdom during the COVID-19 pandemic.
Authors: Christina N. Schmidt, B.S., of the University of California, San Francisco, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2021.10310)
Editor's Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
INFORMATION:
Media advisory: The full study is linked to this news release.
Embed this link to provide your readers free access ...
A connection between senescence and stem cells caused by a breast cancer-initiating protein
2021-05-17
Early diagnosis and improvement of breast cancer treatments have reduced breast cancer mortality in recent years, with survival rates reaching 85% today. In spite of these data, breast cancer was still the most frequently diagnosed tumour in the world in 2020, mainly due to increased population screening and social factors such as ageing. RANK protein plays a key role in the development of these tumours. Located in the membrane of cells, when it binds to its partner RANKL, it sends signals that stimulate the development of the mammary gland. When these proteins do not work properly, breast cells begin to divide and multiply ...
Mothers can influence offspring's height, lifespan and disease risk through mitochondria
2021-05-17
Mitochondria - the 'batteries' that power our cells - play an unexpected role in common diseases such as type 2 diabetes and multiple sclerosis, concludes a study of over 350,000 people conducted by the University of Cambridge.
The study, published today in Nature Genetics, found that genetic variants in the DNA of mitochondria could increase the risk of developing these conditions, as well influencing characteristics such as height and lifespan.
There was also evidence that some changes in mitochondrial DNA were more common in people with Scottish, Welsh or Northumbrian genetic ancestry, implying that mitochondrial DNA and nuclear DNA (which accounts for 99.9% of our genetic make-up) interact with each other.
Almost ...
Dating the stars -- Scientist provide most accurate picture yet
2021-05-17
Scientists have succeeded in dating some of the oldest stars in our galaxy with unprecedented precision by combining data from the stars' oscillations with information about their chemical composition.
The team led by researchers at the University of Birmingham, surveyed around a hundred red giant stars, and were able to determine that some of these were originally part of a satellite galaxy called Gaia-Enceladus, which collided with the Milky Way early in its history.
The results, published in Nature Astronomy, revealed that the group of stars surveyed all have similar ages, or are slightly younger than the majority of the stars known to have started their lives within the Milky Way. This corroborates existing theories suggesting the Milky Way had already started forming a significant ...
Researchers identify 64 regions of the genome that increase risk for bipolar disorder
2021-05-17
In the largest genetic study of bipolar disorder to date, researchers have identified 64 regions of the genome containing DNA variations that increase risk of bipolar disorder - more than double the number previously identified.
The research team also found overlap in the genetic bases of bipolar disorder and other psychiatric disorders. Furthermore, the study supports a role of sleep habits, alcohol, and substance usage in the development of bipolar disorder, although further research is needed to confirm these findings. The study results are published May 17 in Nature Genetics.
Bipolar disorder, a complex psychiatric disorder characterized by recurrent episodes of severely high and low mood, affects an estimated 40 to 50 million people worldwide. It typically begins ...
Cells from the centre of tumours most likely to spread around the body
2021-05-17
Researchers from the Francis Crick Institute, Royal Marsden, UCL and Cruces University Hospital have found that cells from different parts of kidney tumours behave differently, and surprisingly, cells within the centre of a tumour are the most aggressive and have the highest chance of spreading around the body.
Cancers can spread to other parts of the body, with cells taking hold as secondary tumours which make the disease much harder to treat. Understanding the mechanics of this spread, a process called metastasis, could lead to new treatments that block this migration.
In their multidisciplinary study ...
New evidence of how and when the Milky Way came together
2021-05-17
COLUMBUS, Ohio - New research provides the best evidence to date into the timing of how our early Milky Way came together, including the merger with a key satellite galaxy.
Using relatively new methods in astronomy, the researchers were able to identify the most precise ages currently possible for a sample of about a hundred red giant stars in the galaxy.
With this and other data, the researchers were able to show what was happening when the Milky Way merged with an orbiting satellite galaxy, known as Gaia-Enceladus, about 10 billion years ago.
Their results were published today (May ...