Tag: "process" at biology news

DuPont's first biologically derived polymer receives global recognition

...na® ingredient, from corn using a new biological process that requires over 40 percent less total energy than the traditional petrochemical feedstock. It will be commercially available in 2006. In 2003, the U.S. Environmental Protection Agency presented DuPont with its annual "Presidential Green Chemistry...

Researchers discover molecular mechanism that desensitizes us to cold

...alter the electrical properties of the membrane, a process that leads to the sensation of cold. When the receptor is stimulated, calcium enters the cell and stimulates the breakdown of PIP2. When PIP2 is broken down, the receptor becomes inactive, thus ending the sensation or desensitizing the cell to the co...

BioMed Central welcomes the new National Institutes of Health public access policy

...iption publishers will be expected to go through a process of resubmitting their papers to the PubMed Central...he time and effort of going through the deposition process themselves. This significant benefit is in addition to the rapid and high quality peer review, fast...

Probing the promise and perils of nanoparticles

...nd similar nanoparticles get into cells involves a process called polycation-mediated endocytosis. But Hong's experiments suggest that nanoscale hole formation may be at least as important in allowing materials to travel through membranes. The work that Banaszak Holl, Hong and Leroueil will discuss is one o...

Epstein-Barr virus protein crucial to its role in blood cancers

...laboratory research into how EBV drives the cancer process has directly identified a critical component of the cell cycle for control. Now we can develop targeted therapeutics to disrupt the function of this viral protein." The researchers surmise that the first use of future therapies from these studies wil...

Defensins neutralize anthrax toxin

...laboratory research into how EBV drives the cancer process has directly identified a critical component of the cell cycle for control. Now we can develop targeted therapeutics to disrupt the function of this viral protein." The researchers surmise that the first use of future therapies from these studies wil...

Liposome finding implies electrical effect on cell development

...notubule formation may reveal a previously unknown process involved in the development of structures like axons and dendrites in nerve cells. Hayes will present the results of the experiments at a 2 p.m. March 15 session entitled "Colloids in Complex Fluids" at the American Chemical Society meeting in San D...

Controlling protein diversity

Proteins called coactivators control the process by which a single gene can initiate production of several proteins in a process called alternative splicing, said Baylor College of Medicine researchers in a report that appears in...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...hat differences among patients in their ability to process nitric oxide in the blood correspond to the severi...ect in the ability of patients' red blood cells to process nitric oxide has been linked to a disease, the researchers said. The findings also raise the possibi...

Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries

...acrophages, which engulf the cholesterol through a process called oxidation. Macrophages produce pro-inflammatory substances, which cause a secondary effect, encouraging other cells to accumulate and worsen plaque buildup in arteries. "The oxidized lipids are cleared out by macrophage cells, but the lipids ...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...es. Because of the extreme sensitivity of the BCA process that Mirkin's team developed, the researchers were... in the earliest stages of Alzheimer's. If the BCA process can identify the markers before symptoms develop, doctors may be able to combat the illness in its n...

Insight into natural cholesterol control suggests novel cholesterol-lowering therapy

... up from the bloodstream. The cholesterol-building process involves more than 25 enzymes, including one calle...ction by attaching a protein called ubiquitin in a process called ubiquitination. Ubiquitination is a common mechanism for stimulating protein degradation. Cho...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...y say that using plants to remove contaminants ? a process called phytoremediation -- provides one of the most cost-effective methods of cleaning polluted soil available. "Phytoremediation can help clean up the selenium, but the thing that's holding people up from using plants more widely is that, by and la...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...o have found that a recently discovered biological process known as sumoylation -- until now thought to be ac...t of potassium ions across the cell membrane? This process is important because the flow of potassium ions determines whether "excitable" cells in the brain, h...

Researchers discover chemical compounds that affect plant growth

...vement of proteins through plant cell membranes, a process known as endomembrane trafficking. "Well-characterized bioactive chemicals and their targets identified in the model plant, Arabidopsis, can be used in non-model species to improve agronomic traits and increase crop value," said research team leader...

Fibril Shape Is The Basis Of Prion Strains And Cross-species Prion Infection

...d colleagues also demonstrated that a "preseeding" process between animals with different prion amino acid sequences could overcome species barriers. For instance, mouse prion fibrils normally infect humans but not hamsters. But when mouse prions were brought into contact with hamster prion amyloid fibrils, ...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...w antibiotics can be a maddeningly slow and costly process ?if pharmaceutical companies even bother, says Har...ct development process, urging changes to make the process “more predictable and less costly.?The latest estimates put the cost of bringing a new product to ma...

Scientists discover how plants disarm the toxic effects of excessive sunlight

...gy from sunlight into bioenergy through a chemical process called photosynthesis, which also produces oxygen in its breathable form. However, photosynthesis can also generate an alternate form of singlet oxygen, which is a highly reactive and toxic substance that destroys biological molecules. "We've discov...

Multi-purpose protein regulates new protein synthesis and immune cell development

...eins in the cell's endoplasmic reticulum (ER). The process begins with chains of amino acids, which are deposited in the ER membrane in response to coded instructions from genes. Chaperone proteins fold these amino acid chains into specific shapes and direct them to different areas of the ER for processing. ...

Gene therapy promising for growing tooth-supporting bone

...bout 28 days. Giannobile said a next step in this process could include looking for non-viral approaches to delivering gene therapy to the defect site. Alternatively, scientists could conduct the gene therapy outside the body using a tissue biopsy and then transplant the genetically-modified cells back into...

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