Tag: "tiny" at medical news

Sounds of New York, evidence for a preferred ear, ultrasound for the eye

...y Brainstem Implant (PABI). In this device, eight tiny electrodes are inserted directly into the auditory center of the brainstem, the structure at the base of the brain that is connected to the spinal cord. Designed by researchers at the House Ear Institute (HEI) in California and collaborators at Coch...

Discovery sheds light on how cancer cells grow and divide

...tment. Scientific Background The centrosome is a tiny cellular organ that helps organize chromosomes during cell division. It's also a signaling center for the cell, and as such is involved in the natural programmed cell death called apoptosis. In yet another role, the centrosome is important in setti...

Could this be the end for injections?

...eam of gas to bombard small areas of the skin with tiny crystals of inert aluminium oxide. The sharp parti...ve the rough surface-layer of the skin, and create tiny holes, known as microconduits, in the underlying layers of the skin. The crystals and loosened skin ...

American Thoracic Society Journal news tips for April 2004 (second issue)

...XPOSURE AFFECTS HEALTHY STATE TROOPERS A study of tiny airborne particulate matter in the vehicles of nine healthy, young, non-smoking male North Carolina State Highway Patrol troopers as they each worked four 3 p.m. to midnight shifts showed that pollutants could cause pathophysiologic changes in the of...

New drug prevents arrhythmias that cause sudden cardiac death

...l arrhythmias during exercise. The defect causes a tiny channel in heart muscle to leak calcium ions into heart cells. The leak can trigger a fatal arrhythmia at any time in heart failure patients or during exercise in people with an inherited defect in the channel. All 10 mice that received the drug thri...

Time-reversal acoustics research promises medical breakthroughs

...mber within the heart. To make this work, harmless tiny capsules (ultrasound contract agents) would be introduced in the blood stream. They would react differently during the heart's different pressure conditions and their reactions would be measured by sound waves aimed from different angles and returne...

Hopkins' young researchers honored for their contributions

... to understand, say, the genetics goings on of the tiny worm C. elegans. "Everyone can appreciate the value of clinical studies, but the importance of basic research can be tough to explain to friends and family," says Jason Pellettieri, a Ph.D. candidate working with Geraldine Seydoux, Ph.D., and recipie...

Researchers say stenting the best treatment for blocked leg arteries

...the blocked artery. The vessel is pumped open by a tiny balloon, and the stent is inserted to hold open the blood vessel. "The early results of stent placement suggested that it offered excellent short-term results for treating this condition," said lead researcher Timothy P. Murphy, M.D., associate profe...

Jefferson researchers discover novel gene profile that may identify colon stem cells

...f gene expression in the stem cell-rich bottom of tiny "crypts" in the tissue lining the colon. By identifying these patterns, the scientists hope to be able to identify mechanisms through which stem cells contribute to the development of colon cancer. "Having a genetic signature for the colonic stem ce...

New technique uses household humidifier to create nanocomposite materials

... formation process takes only a few seconds. "Each tiny droplet serves as its own microscopic chemical reactor," Suh said. "The micron-size mist results in particles a few hundred nanometers in size." Among the materials the chemists have created with their ultrasound induced mists are porous nanospheres...

Invisible light and special goggles may improve brain tumor surgery

...beams of near infrared light may be able to detect tiny tumors and areas of cancerous tissue in the brain that surgeons can't normally see, say investigators at The University of Texas M. D. Anderson Cancer. They say their advance, successfully tested in animals, is designed to help neurosurgeons define t...

American Thoracic Society Journal news tips for April 2004 (first issue)

... investigators found that exposure to two types of tiny particulate matter and to ozone was associated with increased odds of suffering two or more pulmonary exacerbations that required either hospitalization or administration of intravenous antibiotics at home. Of the study group, 3,322 patients had two...

Making smart drugs that deliver the right kind of punch

...backbones of their delivery system. Dendrimers are tiny spheres whose width is ten thousand times smaller than the thickness of a human hair, explains physics doctoral student Almut Mecke. "These spheres have all sorts of loose ends where you can attach things---for example, a targeting agent that can rec...

Prototype system developed by Wright State computer engineer allows blind to 'see'

... The partnering project at ASU is called iLearn. A tiny camera is mounted to glasses and connected by a thin wire to a modified lap-top computer the individual carries on his or her back. The Tyflos system operates by identifying the images "seen" by the camera and converting this to audio information t...

Key to proper blood vessel growth in eye and ear discovered

...first cue to the carefully choreographed growth of tiny blood vessels in the eye and ear. Their report, in...cialized systems to control blood vessel growth in tiny areas. With time, it may be possible to start and stop blood vessel growth better than we can right ...

Student builds micro biosensor chip to move DNA molecules

... last summer working on his project. "The chip has tiny wires, each about one-fifth the diameter of a huma...NA or a surface charge imposed on the molecules. A tiny drop of liquid containing the DNA is placed atop the chip. The electric field then guides the molecu...

New insights into devastating basketball foot injury

...man continued. "The MRI is ideal for capturing the tiny fractures that are the hallmark of the condition." Both Guettler and Moorman said that while the current study looked at elite athletes, the findings are also applicable to all types of athletes who participate in sports requiring similar maneuvers. ...

Clip device accomplishes endovascular, non-surgical repair of faulty heart valve

March 9, 2004--A tiny metallic clip that can be delivered and attached to the heart's mitral valve with a catheter may eliminate the need for open-heart surgery in some patients who suffer from significant mitral regurgitation (MR). A debilitating condition, MR occurs w...

Tiny molecular motors shed light on cell function, say Stanford researchers

...olecular motor provides the rigidity needed by the tiny sensors in the inner ear in order to respond to sound. They found that this motor creates the proper amount of tension in the sensors and anchors itself to maintain that tension. "Our general feeling is that tension-sensitive machines are at the hear...

Hopkins researchers find MRI useful tool in diagnosing inflammatory bowel diseases in children

...iagnostic tests, including colonoscopy, in which a tiny scope is inserted through the rectum to examine the lower digestive tract; computerized tomography (CT), which creates a 3-D image of the intestines; small bowel image studies; and biopsied colon tissue. They discovered G-MRI confirmed the diagnosis ...

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