Tag: "stick" at biology news

Key to Triplet Repeat Brain Diseases Open Door For New Way To Understand, Treat Genetic Diseases"

...epeat" diseasegenes produce proteins that errantly stick to an enzyme crucial to the productionof energy in brain cells. They believe that because this enzyme cannot,therefore, do its job, brain tissue will malfunction and may, over years,die. This would result in fatal physical and intellectual deteriorat...

Duke University Students Devise Devices For The Disabled

...he pushed, he deftly maneuvered a special goalie's stick the Duke studentsalso cobbled out of a fishing net they bought at a WalMart. The stick wassmaller than the adult model he used before, and it also had an easier-to-graspround handle. Dan...

Erodible plastic microspheres could be effective oral drug delivery system

...ure of thepolymers. The spheres were engineered to stick tightly to and even penetratelinings in the gastrointestinal tract before transferring their contents overtime into the circulation system. "The study indicates uptake of entire microspheres by specific cells,particularly absorptive cells of the sma...

Natural Shelters on Leaves House Plant Bodyguards

Want your bodyguards to stick around? Give them lodging. Some plantsseem to do just that in the form of tiny pockets and hair tufts on the undersidesof leaves, offering the shelter necessary to house a population of plant-protectingbugs, report researchers at the University of Ca...

Wonder Thread: UD Scientists Report First Protein With Collagen And Elastin-Like Domains

...operties. "If a byssal thread were simply a stiff stick attached to an elastic tube, it wouldn't have an outside chance of surviving these relentless tidal beatings," Waite notes. "In fact, the collagen in byssal threads goes from being a stiff material, to something that's very stretchy--without any sudd...

Cellular Engineers Design Custom Cell Surfaces Able To Adhere To Synthetic Materials

...zzi set out to design new cell surfaces that could stick tosynthetic materials. "We decided to appropriate the cell's natural metabolicmachinery for assembling tailor-made oligosaccharides." Bertozzi reasoned that if a properly designed synthetic sugar with novelchemical properties could be ingeste...

Columbia Biologists Match Odor Receptor To Odor; Research Uncovers How Sense Of Smell Works; First Aroma Scientists Detect Is That Of Meat

...lumbia that discoveredthe receptors' proteins that stick out from nerve cells in the nasal cavity andconnect to molecules floating in the air, setting in motion a cascade ofreactions that create a perception of odor in the brain. "I believe this experiment will prove to be a Rosetta stone forolfact...

Hurdle In Ulcer Vaccine Development Cleared

...ein product of this gene, BabA, allows H.pylori to stick to the gastric epithelium and play a critical role in theefficient delivery of factors that directly damage gastric tissues," Borén says. Thomas Borén can be reached at: Thomas.Boren@oralbio.umu.se Douglas Berg can be reached at: 314-...

Sex Differences In Heart Disease May Be Due To Enzyme That Breaks Down Fat

... the"bad" cholesterol because excess LDL particles stick to the inner walls of theblood vessels to form plaque. These particles help form the plaque obstructionsin the blood vessels that can block blood flow and trigger heart attacks andstrokes. LDL comes in different sizes, or densities, and everyone's ...

New Look At How Cells Move Could Shed Light On Tumor Growth

...um-regulatedtraffic signal that dictates how cells stick to their environment. Learning about the basic mechanisms of how cells move may have implicationsfor a wide range of diseases, including inflammatory problems such as arthritisand asthma as well as cancer invasion and metastasis, said Anna Huttenloc...

USGS Responds to Amphibian Declines With Program In Great Smokey Mountains National Park

... where they will eventually turn over almost every stick and stone and wade in most creeks. They will also drive park roads after severe thunderstorms looking for amphibians moving to mating ponds. Their inventory will provide information on the condition of biological resources to Department of Interior l...

Crystal Structure Of Key HIV Protein Reveals New Treatment Targets

...jacking these cells. Loop-shaped projections that stick out above themolecule's surface hide the critical locking regions. When the virus reachesits target, the loops collapse and move out of the way, unmasking the lockingregions. An icing of carbohydrate molecules that also shields the receptor-b...

Taking The "Ouch" Out Of Needles: Arrays Of "Microneedles" Offer New Technique For Drug Delivery

...sy to use. Patients would just peel aliner off and stick it onto the skin. They would not see any needles, and thereshould be no pain associated with it." Details on the work will be presented June 22 at the 25th InternationalSymposium on Controlled Release of Bioactive Materials. A paper has beenaccepte...

Researchers Document Transmission Of Protease-Resistant HIV

...issues. "The bottom line is that helping patients stick to these difficultregimens is as important as the drugs themselves." To examine the sensitivity and resistance of the patient's virus to the 11approved HIV anti-retrovirals, the researchers used a novel phenotypic drugsusceptibility assay developed ...

HIV-Positive Injection Drug Users Often Don't Receive Protease Inhibitors And May Not Be Aware Of The Drug

...r cities to help drug users take advantage of, and stick with,HIV therapy regimens. Under the model, cities could establish accessible fieldsites equipped with bathrooms and showers and a kitchen that would serve twomeals a day. The sites would be staffed by health educators and otherspecialists who coul...

Duke Studies Show That Environmental Effects Of Dams Extend To Insect Life

...e is a high hostplant density, butterflies tend to stick around longer. Consequently, they tendto lay more eggs. People assume these islands are pretty much similar in termsof resource distribution. That may be true for some species, like rodents,iguana or howler monkeys. But that's not true for some speci...

Hopkins Study Shows Languishing Addictions Drug Really Works

...may now greatly increase the number of addicts who stick with treatment, thanks to a new Johns Hopkins study. The study suggests better ways of taking LAAM (levomethadyl acetate hydrochloride), a drug similar to methadone in its capacity to discourage heroin use and block withdrawal symptoms. However,...

Hopkins Study Reveals Key Details On How We Get Energy

...wn as the site of energyproduction. The molecules stick out on the mitochondria, attached to theirinner surfaces in mushroom-like clusters. When food is broken down or metabolized for energy, the last stages ofthe process occur within the mitochondria. The ATP synthase molecule, has two...

Ribozymes Come Ready For Action

... surface "nooks and crannies" to help themolecules stick together within the crystal. While Doudna's group could easilycrystallize the viral ribozyme, most of the crystals they created didn'tinteract well with x rays. Inspired by "desperation," Doudna's team came up witha nifty trick for overcoming the pro...

Chemists Discover New Processes In Fuel-Cleaning Catalysis

...swould be important when the reactants do not even stick to them," Weiss says,but we think we may have answ...o capture the thiophenes, which would nototherwise stick to the basal plane of the catalytic crystallites," Weiss says. "We can now think about designing b...

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