Category: biotech/medical – Page 1567
A teen from Texas has won a national science competition for identifying a molecule that can bind and potentially disable SARS-CoV-2.
An odd lump on Elizabeth Cowles Johnston’s breast prompted a Friday morning call to her primary care physician Rebecca Andrews at UConn Health.
Dr. Andrews quickly fit her in, and upon checking the lump sent her to Dr. Alex Merkulov, Section Head of Women’s Imaging at the Beekley Imaging Center at UConn Health for a mammogram and ultrasound. The following Monday she had a biopsy of her breast and by that Wednesday she had the diagnosis of breast cancer.
“It was all very quick,” says Johnston.
“It seems like they may be onto something,” Dr. Valery Fitzhugh, a Rutgers University pathologist who didn’t work on the study, told the NYT. “If it’s real, it could change the way we look at disease in this region.”
The fourth pair of salivary glands are better hidden than the other three, which are right beneath our skin and can be manipulated through the surface. So unless doctors were explicitly looking for them, it’s feasible to see how the easily-damaged glands went undiscovered all this time.
“The location is not very accessible, and you need very sensitive imaging to detect it,” study author Dr. Wouter Vougel, a radiation oncologist at the Netherlands Cancer Center, told the NYT.
Imagine a mobile phone charger that doesn’t need a wireless or mains power source. Or a pacemaker with inbuilt organic energy sources within the human body.
Australian researchers led by Flinders University are picking up the challenge of “scavenging” invisible power from low-frequency vibrations in the surrounding environment, including wind, air or even contact-separation energy (static electricity).
“These so-called triboelectric nanogenerators (or TENGs) can be made at low cost in different configurations, making them suitable for driving small electronics such as personal electronics (mobile phones), biomechanics devices (pacemakers), sensors (temperature/pressure/chemical sensors), and more,” says Professor Youhong Tang, from Flinders University’s College of Science and Engineering.
So exercise in the morning is better?
A new study, published in the International Journal of Cancer, has found that exercising in the mornings especially can stave off cancer.
Just like humans, microbes have equipped themselves with tools to recognize and defend themselves against viral invaders. In a continual evolutionary battle between virus and host, CRISPR-Cas act as a major driving force of strain diversity in host-virus systems.
A new study led by Professor of Life Sciences Shai Pilosof (Ben-Gurion University of the Negev, Beer-Sheva, Israel), Professor of Microbiology Rachel Whitaker (University of Illinois Urbana-Champaign), and Professor of Ecology and Evolution Mercedes Pascual (University of Chicago) highlights the role of diversified immunity in mediating host-pathogen interactions and its eco-evolutionary dynamics. The study also included Professor of Bioengineering and Bliss Faculty Scholar Sergei Maslov (University of Illinois Urbana-Champaign), Sergio A. Alcal´a-Corona (University of Chicago), and Ph.D. graduate students Ted Kim and Tong Wang (University of Illinois Urbana-Champaign).
Their findings were reported in the journal Nature Ecology & Evolution.
Portable sequencing is making it possible for biologists to perform DNA analysis anywhere in the world. How is this technology reshaping the way they work?
Thanks to nanopore technology, scientists can now collect samples and sequence them anywhere. It is the concept of backpacking applied to scientific research.
French molecular biologist Anne-Lise Ducluzeau has experienced this first hand during her research in the freezing environment of Alaska. “I remember driving back home with my sequencing station on the passenger seat, it was −20ºF (−29ºC) but the car was warm and reads kept coming,” relates Ducluzeau, who has been using a portable sequencer for her research for the past four years.
Knowing which proteins are key to protection from disease, and the deficiencies in expression or activity that are hallmarks of disease, can inform individualized medicine and the development of new therapies.
Twenty years after the release of the human genome, the genetic “blueprint” of human life, an international research team, including the University of British Columbia’s Chris Overall, has now mapped the first draft sequence of the human proteome.
Their work was published Oct. 16 in Nature Communications and announced today by the Human Proteome Organization (HUPO).
“Today marks a significant milestone in our overall understanding of human life,” says Overall, a professor in the faculty of dentistry and a member of the Centre for Blood Research at UBC. “Whereas the human genome provides a complete ‘blueprint’ of human genes, the human proteome identifies the individual building blocks of life encoded by this blueprint: proteins. ” Proteins interact to shape everything from life-threatening diseases to cellular structure in our bodies.”