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Drinking diet soda may reduce the risk of forming kidney stones

LINTHICUM, MD, April 26, 2009Patients with stone disease could benefit from drinking diet soda. New research from the University of California, San Francisco suggests that the citrate and malate content in commonly consumed sodas may be sufficient to inhibit the development of calcium stones. The ...

New regulatory mechanism discovered for cell identify and behavior in forming organs

CINCINNATI Two proteins interact in a previously unknown molecular mechanism that may have broad implications in future studies looking for the causes of defective organs in fetuses, metastatic cancers and other diseases, according to researchers at Cincinnati Children's Hospital Medical Center. ...

Researchers find an essential gene for forming ears of corn

Cold Spring Harbor Laboratory (CSHL) professor David Jackson, Ph.D., and a team of plant geneticists have identified a gene essential in controlling development of the maize plant, commonly known in the United States as corn. The new research extends the growing biological understanding of how the...

Scientific information largely ignored when forming opinions about stem cell research

MADISON - When forming attitudes about embryonic stem cell research, people are influenced by a number of things. But understanding science plays a negligible role for many people. That's the surprising finding from a team of University of Wisconsin-Madison communications researchers who have...

Cancer cells forming blood vessels send their copper to the edge

New information about a link between the growth of blood vessels critical to the spread of cancer and the copper in our bodies has been discovered by researchers from the U.S. Department of Energy's Argonne National Laboratory and the University of Chicago, using a beamline at the Advanced Photon S...

Protecting cells from their neighbors

...ed. It is dictated by the separation of cells that will become sperm and ovules - germ cells-, from the remaining cells, which will be responsible for forming the body organs and tissues -, and that comprise the somatic cell line. Scientists at the Institute for Research in Biomedicine (IRB Barcelona), heade...

UCSF researchers identify new drug target for Kaposi's sarcoma

...le inhibitor of a herpes virus protease to not only act outside the active site, but also to select for the partially unfolded protein to keep it from forming the dimer interface. Herpes viruses make up one of the most prevalent viral families, including eight human viruses that cause a variety of devasta...

Nanophysics: Serving up Buckyballs on a silver platter

...0 on a silver surface using a technique called low-energy electron diffraction. They find that the silver atoms rearrange in such a way namely, by forming a 'hole' beneath each C60 molecule - that reinforces the bonding between the carbon structure and the silver surface. The measurements push the li...

Life on Earth came from other planets

..., including those shattered by the supernova, may have easily survived. Pieces of these planets may have eventually struck or become part of the newly forming Earth. Life appeared a few hundred million years after the Earth's creation during a period of heavy bombardment by comets and moon-sized astero...

Promising new treatment for Alzheimer's suggested based on Hebrew University research

... Alzheimer's disease plaques. It does this by interacting with the Alzheimer's disease β-amyloid protein and preventing it from precipitating and forming those brain plaques which are the neuropathological hallmark of this disease. To compare the normal protein to the K mutant, the researchers used ...

New lab test offers better prediction of HIV microbicide safety

...theorized that another mechanism may also compromise a microbicide's safety. The cells of the vaginal epithelium normally are tightly packed together, forming an impermeable barrier to HIV. If a microbicide disrupts the barrier's structural integrity, HIV would be able to slip through the gaps and infect cir...

Explosive growth of life on Earth fueled by early greening of planet

...d with intrusions of coastal ground waters during the burial transformation of initial limestone muds into rock. It's the same as we see in limestones forming today." Brave new world By gathering all of these published measurements and carefully plotting carbon isotopic data against oxygen isotopic ...

Desert rhubarb -- a self-irrigating plant

...Oranim, and noticed that its leaves are unusually large and covered with a waxy cuticle. They observed an exceptionally ridged structure on each leaf, forming a leaf structure that resembles the habitat's mountainous topography. The scientists explained that these deep and wide depressions in the leaves ...

New, less invasive genetic test greatly improves pregnancy rates in older women with poor prognosis

... Amsterdam, The Netherlands: A new test examining chromosomes in human eggs a few hours after fertilisation can identify those that are capable of forming a healthy baby, a researcher told the 25th annual conference of the European Society of Human Reproduction and Embryology today (Monday 29 June). Dr. ...

New guide to tropical seedlings: Essential to climate change research

... The enormous trees forming rainforest canopies bear little resemblance to their seedlings, many described for the first time in the new field guide, "Seedlings of Barro Colorado...

Salt block unexpectedly stretches in Sandia experiments

...ace molecules don't have buddies." That is, because there's no atomic lattice above them, they're more mobile than the internal body of salt molecules forming the salt block. Salt showing signs of surface mobility at room temperatures was "totally surprising," said Houston, who had initially intended to s...

The SIB recognizes the next generation of bioinformaticians

... on particular residues in much detail. Such analyses reveal that protein residues are constrained in very complicated ways, with interacting residues forming chains or networks that even connect residues that are distant in the 3-dimensional structure of the protein. The introduced methodology provides ...

Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii

...lginate, a polymer that further protects the organism from excess oxygen by forming a physical barrier around the bacterium. " A. vinelandii is an attract... source is present, A. vinelandii will undergo a differentiation process, forming cysts that are resistant to desiccation and other chemical and physical cha...

Shape matters in the case of cobalt nanoparticles

...logys microscopes of choice. After a few minutes exposure to the illuminating beam of a transmission electron microscope, the nanocubes melt together, forming nanowires that are no longer separable as individual nanoparticles. The effect, not observed with the spheres, is surprising because the cubes average...

Aluminum-oxide nanopore beats other materials for DNA analysis

...of making the nanopore resulted in an unexpected bonus, Bashir said. "As the electron beam forms the nanopore, it also heats the surrounding material, forming nanocrystallites around the nanopore. These crystals help to improve the mechanical integrity of the nanopore structure and could potentially improve ...

Capturing the birth of a synapse

...nal Neural Development . "We've caught two neuronal cells in the act of forming a synapse," said principle investigator Philip Washbourne, professor of bio...which two very important molecules, NMDA and PSD-95, are brought to a newly forming synapse." ...

'Disordered' amino acids may really be there to provide wiggle room for signaling protein

...f proteins. As is typical for human proteins, over one third of the amino acids that make up NHERF1 were predicted to be intrinsically disordered, forming no known structures and matching no known evolutionarily-conserved pattern. According to Roder, it is one of these disordered segments, approximately ...

Stanford scientists find heat-tolerant coral reefs that may resist climate change

...on partnerships with tiny, single-celled algae called zooxanthellae. The corals provide the algae a home, and, in turn, the algae provide nourishment, forming a symbiotic relationship. But when rising temperatures stress the algae, they stop producing food, and the corals spit them out. Without their algae s...

UC Davis bioengineer receives Hartwell Foundation grant to address skull fusion disorder of infants

...o is make a scaffold a material that the bone-forming cells can enter that supplies them with the proper directions for how much bone they should be forming and how fast they should be doing it," he said. Leach will be collaborating with two colleagues at the UC Davis School of Medicine: Alice Tarantal,...

Neuroscientists discover long-term potentiation in the olfactory bulb

... sense of smell, the olfactory bulb. Gao, a fourth-year graduate student, had learned that damaging olfactory sensory pathways prevents sheep from forming selective bonds with her own lambs, causing them to adopt lambs from other mothers. This cued her curiosity as to how a mother ewe forms such a select...

Two-pronged model could help foil tough cystic fibrosis infections

...s, and Dr. George O'Toole of microbiology and immunology. The research combines two results: "We were first to show iron is definitive for biofilms forming on live human airway cells. And the highest concentration of tobramycin that can reach CF lungs is below what we've shown to be barely enough to erad...

Sexual harassment from males prevents female bonding, says study

...ale social interaction. However, it is possible that the sheer amount of time spent by females dealing with unwanted male attention prevents them from forming relationships with other females. They believe females from groups with more males may have bonded with females from outside in order to try to establ...

How tumor cells move

... If cancer cells lack a certain protein, it could be much easier for them to penetrate healthy body tissue, the first step towards forming metastases. Scientists at the Pharmacology Institute of the University of Heidelberg have discovered the previously unknown cell signal factor SCAI (s...

Researchers develop flow sensors based on hair structures of blind cavefish

...lets until he constructed a tall hydrogel structure. Once the entire cupula structure dried, McConney exposed it to ultraviolet light to crosslink it, forming a three-dimensional network. "This method of adding one droplet at a time allowed us to control the width and height of the cupula and the distance...

Lab-on-a-chip homes in on how cancer cells break free

...o the gold lines like balloons tied to string. A cell is placed on the chip, atop these molecules. The cell spreads across several of the gold lines, forming attachments to the surface of the chip with help from the molecules. Then, the tethered molecules are released from one of the lines by a chemical ...

Shellfish and inkjet printers may hold key to faster healing from surgeries

...echnology gives you greater control over the placement of the adhesive. This helps ensure that the tissues are joined together in just the right spot, forming a better bond that leads to improved healing and less scarring." This increased control would be a boon for surgery that relies on extreme precision, ...

Dancing 'adatoms' help chemists understand how water molecules split

...e adatoms with the help of water molecules. If a water molecule sits down next to an adatom, one of the water's hydrogen atoms can jump to the adatom, forming two oxygen-hydrogen pairs. These pairs are known as hydroxyls and tend to steal atoms from other molecules, including each other. One of the thiev...

Research supports toxoplasmosis link to schizophrenia

...schizophrenia and toxoplasmosis infection and our study is the first step in discovering why there is this link." The parasite infects the brain by forming a cyst within its cells and produces an enzyme called tyrosine hydroxylase, which is needed to make dopamine. Dopamine's role in mood, sociability, a...

Stem cells replace stroke-damaged tissue in rats

...ake connections with other cells, which helps to establish the tissue. "Over a few days we can see cells migrating along the scaffold particles and forming a primitive brain tissue that interacts with the host brain. Gradually the particles biodegrade leaving more gaps and conduits for tissue, fibres and ...

The 'clean plate club' may turn children into overeaters

... they eat- or don't eat, they may react by acting out and overeating when away from home." "Preschool-age children are at a vulnerable age, and are forming eating habits that will follow them throughout their life" says Wansink, author of Mindless Eating: Why We Eat More Than We Think. He recommends...

A new way to assemble cells into 3-D microtissues

...two cell types were randomly mixed, the stem cells didn't grow. But structured microtissues built from the two cell types stimulated their own growth, forming a simple artificial signaling network that behaved much like the natural networks that control immune-cell expansion or tumor proliferation. "Sin...

Scientists discover why teeth form in a single row

... by one in sequence. As each tooth develops, something must prevent it from forming too close to the next or mammals would have no gaps between their teeth. Wh...so receive signals that enough jaw has grown in for the next tooth to start forming atop it. The implications of the current results may go beyond tooth de...

UCR scientists identify stem-cell genes that help form plant organs

...the study and an assistant professor of plant cell biology in the Department of Botany and Plant Sciences . "Since SAM stem-cells are responsible for forming plant organs and determining plant architecture, further analysis of their genes may provide a handle in altering growth rates and growth patterns in ...

Researcher seeks to turn stem cells into blood vessels

...ab with relative ease, Gerecht said, but it is difficult to control the differentiation of these blank-slate cells toward a specific function, such as forming blood vessels. With support from her American Heart Association grant, the Johns Hopkins researcher is trying to determine if adult stem cells are...

CSHL researchers identify gene that helps plant cells keep communication channels open

...ls. Seeds in which this gene failed to work were observed by the CSHL team to give rise to seedlings that barely survived more than two weeks, despite forming intact roots and an intact phloem the main transport artery that carries nutrients and other supplies to the meristems. The mutants even had inta...
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