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Tag: "form" at biology news

Association of herpesvirus with lung disorder questioned

...virus infection and a potentially life-threatening form of high blood pressure, as reported in the March 1...ny of the 22 samples from the two groups with some form of pulmonary hypertension, whereas the antigen was detected in the control group of Kaposi's sarcoma...

Jump-starting T Cells In Skin Cancer

Advanced melanoma, the most deadly form of skin cancer, can be successfully treated in some cases by vaccinating patients with tumor proteins. How these vaccines work and why they are only effective in some patients remains unclear. Pierre Coulie and colleagues now show, in two articles in...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

... lipoprotein (LDL) cholesterol (known as the "bad" form of cholesterol) and triglycerides ?another fatty s...manufacture more cholesterol, which it does in the form of very low-density lipoproteins. The investigators noted that in mice fed high-fat diets, the PCG-1...

A new mechanism of regulating RNA degradation

... identified a novel pathway for RNA degradation, a form of regulation that has garnered significant attention in recent years, and one that has the potential to produce a new set of tools for physicians to use to fight disease. Most of the gene-control tools researchers have collected thus far involve th...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

... identified a novel pathway for RNA degradation, a form of regulation that has garnered significant attention in recent years, and one that has the potential to produce a new set of tools for physicians to use to fight disease. Most of the gene-control tools researchers have collected thus far involve th...

Spleen may be source of versatile stem cells

...994, MGH and Brigham andWomen's Hospital joined to form Partners HealthCare System, anintegrated health care delivery system comprising the two academicmedical centers, specialty and community hospitals, a network ofphysician groups, and nonacute and home health services....

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...thosphere move apart, lava wells up and freezes to form rock. This is how the sea floor is created. Haymon is interested in the large region of cooling on the sides of the mid-ocean ridge. Possibly 90 percent of the hydrothermal cooling of the sea floor occurs in these flanks, and yet these hydrothermal ...

UAB scientists discover the origin of a mysterious physical force

...and some biological compounds, and when thin films form in detergents. The discovery has been published in...ifying the protein folding is essential, since the form these proteins take on when they fold influences how effectively they are able to act. Fully unders...

Researchers discover way to make cells in the eye sensitive to light

...as retinitis pigmentosa. Retinitis pigmentosa is a form ofhereditary blindness where the rods and cones are destroyed, but therest of the eye and retina remains intact. By switching on themelanopsin it could be possible to restore the eyes ability to respondto light.Although making cells in the eye respon...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...oduce hydrogen on Mars and that some microbiallife form could be using that," he said.There are many examp...aremetabolizing hydrogen, it's probably a very old form of metabolism.That's important because it tells us about the history of life onEarth," he said. "And...

Priming embryonic stem cells to fulfill their promise

...ical forces, andextracellular matrix proteins that form the support structure of almostall tissues. Bhatia, Chien, and Flaim focused on just one - theextracellular matrix."We kept the other factors constant and developed a miniaturizedtechnique to precisely vary extracellular matrix proteins as a way toid...

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...t all; about 1 million Americans must control this form by taking insulin injections. In type 2 -- a disorder affecting an estimated 18 million Americans -- the pancreas doesn't make enough insulin or the body's cells develop a resistance to its effect. Without insulin, glucose cannot get into cells to pr...

Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs

...ial progenitor cells, whichare used by the body to form new blood vessels or to repair damagedones. Decreasedblood flow in the legs is caused by the blockage or narrowing of thearteries due to build-up of cholesterol. Normally, with exercise, theblood vessels dilate (get bigger), but clogged blood vessel...

Fox Chase Cancer Center scientists identify immune-system mutation

...iption factor Th-POK. We show that when the normal form of this factor is active in all developing lymphocytes, it can redirect would-be killer cells to the CD4 helper T cell lineage. This indicates that Th-POK is a master regulator of the maturation process." Understanding the development of critical co...

Neuronal 'traffic jam' marks early Alzheimer's disease

...ort. A defective version of beta-APP is cleaved to form an aberrant form of amyloid beta (A-beta) peptide that makes up the plaques that surround the neurons of people with ...

Termites feed through good vibrations

...tions are made. This ability could be likened to a form of sonar. Dr Evans says different termite species are known to prefer eating particular sizes of wood; certain drywood termites prefer small blocks, presumably to avoid competition. With Professor Joseph Lai and his students from the University of N...

Elusive HIV shape change revealed; Key clue to how virus infects cells

...IV. By aiming an X-ray beam through a crystallized form of gp120, they obtained the first high-resolution ...allenges, including difficulty in getting gp120 to form good crystals. "Without very well-ordered crystals you get a very blurry picture," explains Harriso...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

... vaginalis and Giardia lamblia. "The enzymes that form the basis of these shared metabolic strategies are...ng them potential targets of inhibitors that could form the basis of new drug therapies," says TIGR President Claire M. Fraser, who supervised the Institute...

Researchers Uncover Key Step In Manufacture of Memory Protein

...(CPE) is needed to deliver the early, or inactive, form of BDNF ?proBDNF ?to a special compartment in the ... receptors on other neurons and stimulates them to form long-term memory. Dr. Loh explained that, like other proteins, proBDNF is made inside the endoplasm...

Plants respond similarly to signals from friends, enemies

...teria. The rhizobia then migrate into the root and form special structures called nodules, where they turn...ovides no benefit to its host. Root-knot nematodes form feeding cells ?so-called giant cells ?in the plant and later galls or knots on it. "We don't know t...

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