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Tag: "abnormal" at biology news

Transplanted brain cells hold promise for Parkinson's disease

...mptomatic. Although Parkinson’s is associated with abnormal movement, such as tremors, loss of these cells actually makes it difficult for people to move and, once they move, they can’t control the movement, Dr. Borlongan says. The standard treatment is L-dopa, a synthetic dopamine that tends to minimize symp...

PET imaging shows young smokers quick benefit of quitting

... "I believe this is the first PET study that shows abnormal coronary function is reversible after only one mon...y in Sapporo, Japan. "Smoking cessation normalized abnormal coronary artery function, thus supporting its value in preventing heart disease in young adults," he...

Origin of inherited pain disorder pinpointed

...l disorders in inflammatory pain. Such findings of abnormal function in disease also provide insights into the normal function of such channels, they said. R. Mark Gardiner, of University College London, and his colleagues published their findings in the December 7, 2006, issue of the journal Neuron, publish...

New technology to speed up research into Huntington's disease

...nd disorientation) together with the appearance of abnormal movements and impaired motor skills (such as unsteady gait and poor coordination). There is currently no cure and whilst some symptoms can be alleviated, no treatments have been developed that help with cognitive deficits, a distressing aspect of...

Newly identified biomarker detects and regulates spread of brain tumors

... abnormality, whereas high-grade tumors are highly abnormal and grow and spread quickly, making treatment more difficult. Patients with highly malignant astrocytomas typically have a life expectancy of about one year even after neurosurgery, chemotherapy, and radiation therapy, highlighting the pressing need ...

What does the public really know about HPV?

...ly transmitted, and 79 percent knew it could cause abnormal Pap smears. The public needs education about HPV and cervical cancer in order to make appropriate, evidence-based health care choices among existing prevention strategies, including the Pap test, HPV DNA test, and HPV vaccine, researchers co...

Fast test for low blood flow in dogs detects early heart trouble

...le, which enhances the contrast between normal and abnormal regions of the heart. After being injected, each of the dogs had a 64-CT scan of its heart and then underwent the standard test for blood flow with chemical beads. The beads, no bigger than 20 micrometers in diameter and called microspheres, wer...

Key gene controlling kidney development found

...functional at birth. In addition, they produced an abnormal excess in the number of nephrons that in turn produced a useless mass of tissue. Furthermore, the remaining precursor cells underwent apoptosis (cell suicide), further depleting the population of stem cells that could give rise to differentiated cell...

Down syndrome: It's not just the age factor

... have important implications for the prevention of abnormal fetal development. The authors conclude that "clearly, identification of the relaxation control mechanisms and therapeutic restoration of a stringent screen holds promise not only for Down Syndrome." ...

New dyslexia theory blames 'noise'

...t in noise exclusion may have biochemical roots in abnormal levels of GABA, a neurotransmitter that helps the brain to filter out irrelevant information. "This may become interesting for drug development," said Lu, who is testing this hypothesis with functional magnetic resonance imaging trials. Lu and...

Brain regions do not communicate efficiently in adults with autism

...ping individuals, the scientists found patterns of abnormal connectivity between brain regions in people with ...h has practical applications. Murias believes the abnormal patterns of brain activity are a potential biological marker of autism and may help to define the ph...

Coral stress 'like never in history'

...ut while the ancient reefs warn that we are seeing abnormal die-off rates, they also show that the reefs of the past recovered rapidly after these events, taking as little as 100 years to be repopulated by the corals that normally occurred there. Although they are struck by more high impact events, some o...

Nano-devices hold promise for early-stage cancer detection

...sized) device that will provide early detection of abnormal cells inside the body; an imaging and communication system for non-invasive screening in target organs systems such as the breast, pancreas and gastrointestinal tract and the relaying of information to an external receiver; developing ingestible...

High HPV concentrations combined with smoking significantly raise risks of cervical cancer

...rtain cytokines, which are involved in controlling abnormal cell growth. More likely, the combination of both mechanisms are contributory factors. In any event, confirmation of an interaction between cigarette smoking and HPV in cervical cancer development is of vital importance to public health, consideri...

Researchers create genetically matched embryonic stem cells for transplantation

...t genes that have been linked with malignancies or abnormal tissue growth. "Right now this technique is useful for basic research, but we are hopeful that parthenogenetic cells might prove useful for therapies," Daley says. "Our cells produce normal tissues in mice, and there is a report in the clinical lit...

New mechanism underlying pain found

... Neuropathic pain, or the spontaneous pain and abnormal sensitivity following a nerve injury, typically results from a traumatic injury, an infection or disease, or surgery, and can persist long after the initial injury has healed. Millions of people worldwide suffer some form of neuropathic pain, and the...

How brain injury leads to seizures, memory problems

...elps keep brain activity in balance. The resulting abnormal activity, in turn, is thought to be an underlying reason for seizures and memory defects experienced by people who have suffered a traumatic brain injury (TBI). "A traumatic brain injury occurs to someone in the United States every 23 seconds," said...

Critical hearing gene helps send auditory messages to brain

...eople with a recessive form of deafness harbor two abnormal copies of the otoferlin gene. They also had some evidence hinting that the gene might act as a calcium sensor with an important role in neurotransmitter release by the inner hair cells. For example, otoferlin resembles a calcium-sensing protein invol...

Technology for monitoring fetal oxygen during labor offers no apparent benefit

... apparent advantage in interpreting the meaning of abnormal fetal heart rates," said Catherine Spong, M.D., an...l oxygen readings were common among babies showing abnormal heart rates but they were also common among babies with normal heart rates." The study authors no...

Fruit fly aggression studies have relevance to humans, animals

...ointing to new mechanisms that could contribute to abnormal aggression in humans and other animals. The stud... of those 19 mutant families did, in fact, display abnormal aggression compared to non-mutants, confirming the role of those specific genes in aggressive behavi...

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