Health

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  • Slow reading in dyslexia is tied to disorganized brain tracts

    Dyslexia marked by poor reading fluency — slow and choppy reading — may be caused by disorganized, meandering tracts of nerve fibers in the brain, according to researchers at Children’s Hospital Boston and Beth Israel Deaconess Medical Center (BIDMC). Their study, using the latest imaging methods, gives researchers a glimpse of what may go wrong in the structure of some dyslexic readers’ brains that makes it difficult to integrate the information needed for rapid, “automatic” reading.

  • Blood stem cell’s roles could help clarify pathogenesis

    No other stem cell is more thoroughly understood than the blood, or hematopoietic, stem cell. These occasional and rare cells, scattered sparingly throughout the marrow and capable of replenishing an entire blood system, have been the driving force behind successful bone marrow transplants for decades. Scientists, for the most part, have seen this as the hematopoietic stem cell’s (HSC) singular role: to remain in the bone marrow indefinitely and to replenish blood and immune system cells only when called upon.

  • Brain systems less coordinated with age

    Some brain systems become less coordinated with age even in the absence of Alzheimer’s disease, according to a new study from Harvard University. The results help to explain why advanced age is often accompanied by a loss of mental agility, even in an otherwise healthy individual.

  • Increasing growth hormone release reduces abdominal fat

    Treatment with an investigational drug that induces the release of growth hormone significantly improved the symptoms of HIV lipodystrophy, a condition involving redistribution of fat and other metabolic changes in patients receiving combination drug therapy for HIV infection.

  • Even in healthy elderly, brain systems become less coordinated

    Some brain systems become less coordinated with age even in the absence of Alzheimer’s disease, according to a new study from Harvard University. The results help to explain why advanced…

  • Slow reading in dyslexia tied to disorganized brain tracts

    Dyslexia marked by poor reading fluency — slow and choppy reading — may be caused by disorganized, meandering tracts of nerve fibers in the brain, according to researchers at Children’s…

  • Feminist pioneers discuss women’s health policy

    More than three decades after publication of the taboo-shattering book on female health, “Our Bodies, Ourselves,” activists are still struggling to bring attention to women’s health issues amid the national debate over medical insurance coverage, said one of the book’s authors and feminist pioneer Judy Norsigian.

  • Scientists identify gene responsible for statin-induced muscle pain

    Statins, the popular class of drugs used to lower cholesterol, are among the most commonly prescribed medications in developed countries. But for some patients, accompanying side effects of muscle weakness and pain become chronic problems and, in rare cases, can escalate to debilitating and even life-threatening damage.

  • Telling the arthropod tale of life

    They had sifted through the forest floor’s leaves and dirt for days, looking for a tiny type of daddy longlegs native to New Zealand, but had little more than dirty hands to show for it.

  • Selective attention most impaired during first night shift worked

    Our biological propensity for keeping awake during the day and sleeping at night makes night work a challenge. Now, researchers at Brigham and Women’s Hospital (BWH) have found that attention is especially affected during the first night shift. This research appears in the Nov. 28 issue of the Public Library of Science One.

  • Blood stem cells fight invaders

    No other stem cell is more thoroughly understood than the blood, or hematopoietic, stem cell. These occasional and rare cells, scattered sparingly throughout the marrow and capable of replenishing an…

  • Differences between malaria parasites in patients’ blood and in lab

    In a groundbreaking study published today in the advance online edition of Nature, an international research team has for the first time measured which of the the malaria parasite’s genes are turned on or off during actual infection in humans, rather than in cell cultures, unearthing surprising behaviors and opening a window on the most critical aspects of parasite biology.

  • Gene responsible for statin-induced muscle pain identified

    Statins, the popular class of drugs used to lower cholesterol, are among the most commonly prescribed medications in developed countries. But for some patients, accompanying side effects of muscle weakness…

  • Shift workers most impaired on first night shift following day shifts

    Researchers at Harvard Medical School affiliate Brigham and Women’s Hospital (BWH) have found that the attention of shift workers is most impaired on the first night shift following a string…

  • Prostate cancer treatments often not matched to patient needs

    More than a third of men with early prostate cancer who participated in a study analyzing treatment choice received therapies that might not be appropriate, based on pre-existing problems with…

  • Responding to Congo’s epidemic of violence against women

    The rape itself was brutal enough, but the woman’s nearly severed hand shocked Susan Bartels. It was early November and her first day working at Panzi Hospital in Bukavu, a…

  • Researchers in Japan and Wisconsin report major advance in stem cell research

       “The field is moving at lightning speed,” said Harvard Stem Cell Institute (HSCI) Co-Director Doug Melton in response to just-published papers by Japanese researchers and researchers at the University…

  • Edward O. Wilson awarded 2007 Catalonia International Prize

    Edward O. Wilson, Pellegrino University Professor Emeritus, has been selected from a pool of 235 nominees, from 227 institutions in 27 countries, to receive the 2007 Catalonia International Prize. Wilson…

  • Scientists Decode Genomes of Diverse TB Isolates

    An international collaboration led by researchers in the US and South Africa today announced the first genome sequence of an extensively drug resistant (XDR) strain of the bacterium Mycobacterium tuberculosis,…

  • Consumption of some foods associated with decrease in ovarian cancer risk

    New research from the Channing Laboratory at Brigham and Women’s Hospital (BWH) reports that frequent consumption of foods containing the flavonoid kaempferol, including non-herbal tea and broccoli, was associated with…

  • Cerebral cortex thicker in people with migraines

    People who suffer from migraine headaches have differences in an area of the brain that helps process sensory information, including pain, according to a study published in the November 20,…

  • Era ending at School of Public Health

    Barry R. Bloom, dean of the Harvard School of Public Health (HSPH), yesterday announced that he will be stepping down from his position as the School’s leader at the end…

  • Flavonoid-rich diet helps women decrease risk of ovarian cancer

    New research out of the Channing Laboratory at Brigham and Women’s Hospital (BWH) reports that frequent consumption of foods containing the flavonoid kaempferol, including nonherbal tea and broccoli, was associated with a reduced risk of ovarian cancer. The researchers also found a decreased risk in women who consumed large amounts of the flavonoid luteolin, which is found in foods such as carrots, peppers, and cabbage. These findings appear in the Nov. 15, 2007, issue of the International Journal of Cancer.

  • Politics of pain — from Percodan to Kevorkian

    On a rainy Tuesday afternoon (Nov. 6), physicians, historians of science, and members of the general public gathered in the gymnasium at the Radcliffe Institute for Advanced Study to hear about pain.

  • Obesity linked to higher prostate cancer mortality

    Men who are overweight or obese when diagnosed with prostate cancer are at greater risk of death after treatment, according to a new study in the Dec. 15 issue of Cancer, a peer-reviewed journal of the American Cancer Society.

  • Symposium addresses American Indian health

    Sunshine Dwojak, a fourth-year Harvard Medical School student, was 26 when her mother died of heart disease, leaving behind three children. Dwojak’s mother was 48.

  • Study: Single muscle far more complex than previously believed

    New research from Harvard’s Concord Field Station has shown that the common perception of a muscle as a single functional unit is incorrect and that different sections within an individual muscle actually do different work.

  • Beta-carotene reduces dementia risk in men

    Researchers affiliated with the Channing Laboratory at Brigham and Women’s Hospital (BWH) report in the Nov. 12 issue of Archives of Internal Medicine evidence that men who take beta-carotene supplements for 15 years or longer may have less cognitive decline and better verbal memory than those who do not.

  • Research highlights the muscle’s many motions

    New research from Harvard’s Concord Field Station has shown that the common perception of a muscle as a single functional unit is incorrect and that different sections within an individual…

  • Obesity and overweight linked to higher prostate cancer mortality

    Men who are overweight or obese when diagnosed with  prostate cancer are at greater risk of death after treatment, according to a  new study in the December 15, 2007 issue…