Tag: "mimic" at medical news

Mouse shows how Rituximab removes human B cells

...umbers of cells can be sampled from the blood. To mimic the clinical situation, Thomas Tedder and colleagues treated mice with a panel of antibodies specific for mouse CD20 (Rituximab is an antibody that binds to human but not mouse B cells). The antibodies that were effective in removing B cells did so b...

Wartime spitfire strain test monitors stress on key heart artery - aortic aneurysm

... aortic aneurysm that would provide an even closer mimic of the mechanical properties of the original aortic aneurysm. He is also looking for support to develop another technique that would stretch the ability of current photoelectric stress analysis equipment to draw on the more limited reflective propert...

New imaging technique may help reduce risk of heart attacks, strokes

...l tests the Massachusetts team engineered a plaque mimic from a gel of soluble connective tissue. When the gel was bathed with MPO, the magnetic probe generated up to a two-fold increase in MRI signal. That jump was enough to generate easy-to-spot white areas on the MRI image. The group, which includes the...

Parkinson's patients get bilateral benefits with unilateral brain stim

...body motor performance. The tests were designed to mimic everyday activities that Parkinson's patients often have trouble with, such as opening jars or tying shoelaces. The patients performed the tests while the stimulator was on and then three hours after it was turned off. Deep brain stimulation works by...

Mothers have brains primed for care

...elch's laboratory hopes to develop treatments that mimic the actions and interactions of these neuropeptides on the body and brain to reverse behavioral and developmental disorders. This work challenges a widespread assumption that severe behavioral disorders, especially among adolescents, are chronic and ...

New hope for ALS seen with genetic techniques, growth factors

...experiment, the researchers wanted to more closely mimic the human clinical situation, so they waited for motor abnormalities to arise in the rats. At this stage many motor neurons were already lost, yet the VEGF treatment still provided benefits, prolonging the rats' lives slightly. The researchers then ...

NIH awards OHSU $4 million biodefense contract to study tuberculosis

... model of the type of immune response they want to mimic in a vaccine. These individuals are infected with the disease, but don't show any signs or symptoms and are not contagious. The team will specifically use these person's CD8+ T cells. These immune response cells are designed to recognize a marker or ...

Pitt researchers identify biomarkers of lupus which could lead to quicker and better diagnosis

...gan failure, and the manifestations of lupus often mimic those of other diseases makes it difficult to diagnose." It is not unusual for a patient with lupus to seek advice from a variety of specialists and subspecialists over a period of years before being accurately diagnosed, which results in delay...

New insights into muscle adaptation to exercise

...h is much less physiologic and does not as closely mimic what would be expected in human exercise. When placed in the dark with a running wheel, mice will instinctively run, the researchers said. In the Duke experiments, 41 out of 42 mice "ran" up to seven miles each night. At regular intervals over a 28-d...

Post-therapy damage in medulloblastoma patients can be mistaken for new tumors

...and do not cause symptoms. However, these WMLs can mimic the early stages of tumor recurrence, and thus make it difficult for physicians to accurately diagnose the return of cancer. Other authors of this report are Fred Laningham, James W. Langston, Larry E. Kun and Raymond K. Mulhern (St. Jude); Murali C...

Replicating an eel's nerve circuitry may aid paralyzed people

...esearch team's goal is to make a device that could mimic the signals sent by the brain and coax these nerve centers into sending "walking" instructions to muscles in a patient's legs. "This is a challenging, long-term project, but we believe it has a good chance to succeed," said Ralph Etienne-Cummings, an...

Sleep loss boosts appetite, may encourage weight gain

...could trigger metabolic and endocrine changes that mimic many of the hallmarks of aging. A 2000 paper that mapped out the stages of age-related sleep deterioration and showed how changes in sleep were mirrored by changes in hormone secretion, which in turn reduced sleep quality. A 2001 study demonstra...

Youki spray curbs spread of superbug MRSA

...eb across the wound. Amino acids and proteins that mimic those made by blood, rapidly speed up the cell growth to fill any holes. It basically speeds and assists the scabbing process. The spray is called Youki "we wanted people to be able to remember the name," says Jolly. Youki is currently being trialled...

Rare type of pneumonia occurring at higher than normal rate among US troops in Iraq

...ess-severe forms of the disease, both of which can mimic community-acquired pneumonia. Civilian and military physicians should both consider this diagnosis in military personnel presenting with respiratory complaints during, or after, a recent deployment or training exercise," the authors conclude....

Get ready for next generation surround sound

...chips that can alter an electronic signal so as to mimic the effects of the head and outer ear before the signal is fed into the ear canals through a pair of headphones. The Australian Research Council funds the University of Sydney work. The reproduction of sound first started with the use of a single sp...

Study sheds light on cross-species infection for BSE

...th experiments of this type, even in primates that mimic vCJD pathology following oral BSE exposure. Multiple oral exposure events over a period of years seems likely in the UK, and vCJD occurs predominantly in young adults, raising the possibilities of age-related susceptibility or exposure. More data wil...

Monkey 'pay-per-view' study could aid understanding of autism

...pecific neural processes to explore whether we can mimic some of the deficits found in autism in these animals."...

Auditory test to help identify learning impaired

...ainstem in response to speech. These neural events mimic the acoustic characteristics of the speech signal with remarkable fidelity. "Many factors can contribute to a diagnosis of a learning problem and current testing methodologies have not been consistent or reliable for diagnosing individuals with lear...

Sex hormone metabolite reduces stress, anxiety in female rats

...ns. "New drugs could potentially be developed that mimic the effect of allopregnanolone on the GABA receptor, providing a new approach for controlling mood disorders in women," said Toufexis. "The next step is to determine where exactly allopregnanolone is working in the brain to reduce the effect of CRF."...

Engineers develop biowarfare sensing elements for future highly sensitive nerve-gas detectors

...methylphosphonate (DMMP) widely used to accurately mimic sarin and other nerve agents. The sensor element responded to as few as about 50 molecules of the DMMP in a billion air molecules. Both the nano-sizing of the metal-oxide and the unique micro-heater element of the sensor gave the detector its high ...

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