Tag: "reactions" at biology news
Tiny particles could solve billion-dollar problem
...ents. In general, chemical catalysis offers faster reactions
times than bioremediation schemes but also tends to be more expensive. One of the major advantages of using palladium catalysts to break down TCE is that palladium converts TCE directly into non-toxic ethane. By contrast, breaking down TCE with more...
Plants, animals share molecular growth mechanisms
... author of the study. Knowledge of the biochemical reactions
involved in this process eventually may allow researchers to design plants better able to protect themselves from insects and disease. "These genes and their proteins are required for normal development and for normal cell-to-cell adhesion," Szymans...
The secret lives of whales
...h shifts in food distribution. Now, he is studying reactions
of whales to sound pollution, tracking how whales move away or go quiet as human activities enter an area. Every decade the amount of noise is doubling. “Whales have very traditional feeding grounds and their migratory routes along coastlines have be...
Novel Therapy Tested in Mice Could Chase Away Cat Allergies
...lock cat allergies successfully prevented allergic reactions
in laboratory mice, as well as in human cells in a...o develop therapies to prevent deadly food allergy reactions
as well,?says NIAID Director Anthony S. Fauci, M.D. The injectable treatment puts a brake on the re...
Purdue proves concept of using nano-materials for drug discovery
...anoporous" material makes it possible to carry out reactions
inside the vessels. The goal is to produce "labor...se of making chips capable of running thousands of reactions
with the same amount of protein now needed to run only about 10 reactions." Findings being reported...
New research questions basic tenet of neuron function
..., cognition and behavior, such as emotional state, reactions
to stress, pain, and the physical drives of sleep, appetite and sexuality. A better understanding of such fundamental mechanisms of neurotransmitter release will aid researchers in their investigations of psychiatric disorders and neurological disor...
MSI releases 'moleculizer' - a new approach to simulation of intracellular biochemical networks
...pecies formed from pathway proteins as itsimulates reactions
between them by a standard Monte Carlo method. Adi...er is its ability to generate proteincomplexes and reactions
as they are needed, as opposed to generatingall potential complexes and reactions
all at once, a tas...
Nano-Probes Allow an Inside Look at Cell Nuclei
... to tailor quantum dots to track specific chemical reactions
inside nuclei, such as how proteins help repair DNA after irradiation. They have already visualized the dots' journey from the area surrounding the nucleus to inside the nucleus, a feat that opens the door for real-time observations of nuclear traffi...
Chemists identify immune system mechanism for methamphetamine binges
... test tube study designed to simulate the chemical reactions
that occur with the drug when it enters the bloodstream, the researchers showed that methamphetamine reacts with glucose and proteins to form a larger-size "glycated" product. This product is then recognized by immune system components, stimulating t...
A human parasite with a streamlined mitochondrion
...TP, suggesting that it could fuel energy-requiring reactions
within the mitosome but might not perform other functions. The work suggests that the Entamoeba mitosome may represent the simplest mitochondrion yet described, and thus it provides a model system for probing which mitochondrial functions are truly e...
Chemicals in tattoo inks need closer scrutiny
...ause adverse effects in people, including allergic reactions
to ink components, a burning sensation during the ...nclear, however, what the specific causes of these reactions
might be, and the only way to gain better understanding is to know what chemicals make up the inks, ...
Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis
... Science. Mcl-1 blocks the biochemical cascade of reactions
that trigger apoptosis ("cell suicide") of HSCs, according to Joseph Opferman, Ph.D., assistant member of St. Jude Biochemistry. Expression of Mcl-1 thus ensures that HSCs continue to thrive and multiply so they can complete the task of making huge n...
Nanoparticle Breast Cancer Drug Approved by FDA
...roids and antihistamines to avoid hypersensitivity reactions
and must be given in infusions for up to three hours. Because Abraxane is solvent-free, solvent-related toxicities are eliminated and premedication is not required. In the clinical studies, the response rate for all participants treated with Abraxa...
MUHC scientists describe genetic resistance to rampant virus
...er only mild symptoms, infection can trigger fatal reactions
in those with a compromised immune system, such as organ transplant recipients, newborns and persons infected with human immunodeficiency virus (HIV). Dr. Vidal believes her groundbreaking discovery increases the likelihood that therapies will be dev...
Marine sponge yields nanoscale secrets
...n found to serve as a catalyst to promote chemical reactions
to form the glass or a rock-like material of a biomineral. From that discovery, the researchers learned that this enzyme actively promotes the formation of the glass while simultaneously serving as a template to guide the shape of the growing mineral...
Doctors closer to using gene analysis to help trauma patients
...and increase understanding of the body’s molecular reactions
to injury, including inflammation. The lead resear...as not significant, suggesting that profiling gene reactions
may provide meaningful information to doctors. The next step is for scientists to continue the expe...
Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights
...lls to attack the beta cells." Damaging oxidative reactions
are also believed to play a role in atherosclerosis. Scientists suspect oxidative damage in the blood vessel walls may lead to immune reactivity that contributes to narrowing and stiffening of blood vessels. ### Herzog J, Maekawa Y, Cirrito TP, Ill...
'EuroVacc 02' HIV Vaccine Trial Begins
...tigen A in vector Y this time. In this way, immune reactions
to, and the consequent inhibition of the transporter are reduced. The first injections prime the immune system whereas the second injections further enhance (boost) the immune response. Therefore this combined vaccine strategy is expected to strength...
Atmosphere may cleanse itself better than previously thought
...ind spot for scientists, who often detect chemical reactions
by perceiving the telltale light frequencies that certain reactions
are known to emit or absorb. Many sources of OH radicals strongly absorb UV light, making them easil...
Researchers extend mouse lifespan by protecting against free radicals
...ve chemicals can take part in unnecessary chemical reactions
that can damage the cell components, including DNA. Some researchers believe that free radicals could contribute to or hasten heart disease, cancer, and other age-related diseases. The theory also suggests that if the body could be protected from tho...
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