A team from Boston University, MIT, and Harvard discovered how the H. pylori bacteria penetrate the stomach mucus to cause ulcers in the lining.
H. pylori secretes the enzyme urease, which interacts with urea in the stomach to produce ammonia--the ammonia is what neutralizes the acids in the ... Read More
The females of the recently discovered Osedax marine worms feast on submerged bones via a complex relationship with symbiotic bacteria, and they are turning out to be far more diverse and widespread than scientists expected. Californian researchers investigating the genetic history of Osedax wor... Read More
For the first time, researchers at Fred Hutchinson Cancer Research Center have reported the use of a radiolabeled antibody to deliver targeted doses of radiation, followed by a stem cell transplant, to successfully treat a group of leukemia and pre-leukemia patients for whom there previously had... Read More
"As scientists and Nobel Laureates, we write to express our strong support for S. 1373, the Federal Research Public Access Act (FRPAA). This bi-partisan legislation, sponsored by Senators Joe Lieberman (I-CT) and John Cornyn (R-TX), would enhance access to federally funded, published research a... Read More
Two of the world’s biggest drug makers last week spun off their divisions that manufacture AIDS drugs and combined them into one company focusing on the disease.
The new company, ViiV Healthcare, will initially be 85 percent controlled by GlaxoSmithKline and 15 percent controlled by Pfizer. W... Read More
Plasmids, which are DNA molecules capable of independent replication in cells, have played an important role in gene technology. Researchers from Uppsala University in Sweden have now demonstrated that plasmid-based methods, which had been limited to single-cell organisms such as bacteria and ye... Read More
It's not every day you find clues to the planet's inner workings in aquarium scum. But that's what happened a few years ago when University of Washington researchers cultured a tiny organism from the bottom of a Seattle Aquarium tank and found it can digest ammonia, a key environmental function.... Read More
Americans infected by the H1N1 flu virus would be guaranteed paid sick leave under emergency legislation U.S. Senator Chris Dodd plans to unveil on Tuesday in response to the swine flu pandemic.
Dodd's measure is similar to one already introduced in the House of Representatives intended to en... Read More
Dana Filoti of the University of New Hampshire is presenting thin films of silver and copper she has developed that can kill bacteria and may one day help to cut down on hospital infections.
The antimicrobial properties of silver and copper have been known for centuries -- last year, the U.S.... Read More
Like Superman, scientists can now "see" through layers of earth and rock. Unlike the Man of Steel, researchers are using this new ability to learn how microbes are halting uranium’s movement in groundwater underneath nuclear weapons sites. This new ability is known as surface spectral-induced po... Read More
Hiroshi Nakaido, PBD Faculty Scientist, Structural Biology Department, and Professor of Biochemistry and Molecular Biology, UC Berkeley, has authored a guest post on the Small Things Considered Blog regarding the limitations of LB medium.
"LB broth contains, per ml, 10 mg tryptone (... Read More
Over the last 20 years, the sequencing of the human genome, along with related organisms, has represented one of the largest scientific endeavors in the history of humankind. The information collected from genome sequencing will provide the raw data for the field of bioinformatics, where compute... Read More
Researchers at The University of Texas, Austin and Southwestern University will use a $730,000 grant from the National Institutes of Health to develop a new method for rapidly screening blood samples for protein biomarkers, UT-Austin said last week.
The three-stage screening method will invol... Read More
A recently devised method of imaging the chemical communication and warfare between microorganisms could lead to new antibiotics, antifungal, antiviral and anti-cancer drugs, said a Texas AgriLife Research scientist.
The new article was published Nov. 8 in Nature Chemical Biology. It describe... Read More
Griffithsin is a sugar-binding protein identified in 2005 as an inhibitor of HIV-1. At the fall meeting of the American Cancer Society it was reported that griffithsin can also block replication of SARS virus and ebolavirus. The protein appears to act by binding carbohydrates on the virion surfa... Read More
A chemical culprit responsible for the rapid, mysterious death of phytoplankton in the North Atlantic Ocean has been found by collaborating scientists at Rutgers University and the Woods Hole Oceanographic Institution (WHOI). This same chemical may hold unexpected promise in cancer research.
... Read More
Pandemic H1N1 influenza is now worldwide, with more than 199 countries and territories reporting laboratory-confirmed cases, according to the World Health Organization. The official toll is now more than 6,000 deaths, but WHO authorities think that is an underestimate, since laboratory testing h... Read More
A small microscope that can be mounted on an animal's head should offer a front-row view of how its brain processes visual and other stimuli on the move.
A laser inside the device scans the activity of neurons through a tiny hole in the skull, made prior to the experiment under anaesthetic. W... Read More
Probiotics are known for their ability to help regulate your digestive system, as well as positively contribute to your health in a number of other non-digestion-related areas. And now a new study is suggesting that probiotics may play a role in a woman’s weight after she’s had a baby. Keep read... Read More
A Chinese scholar persecuted during the Cultural Revolution for smuggling a rare collection of mushrooms out of China before World War II was honored Saturday when the collection was returned more than 70 years later.
At a ceremony at the Chinese Academy of Sciences, Cornell University Presid... Read More