Health
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A dietary swap that could lengthen your life?
Study finds replacing butter with plant-based oils cuts premature death risk by 17 percent
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New hope for repairing eye damage once thought untreatable
Stem cell therapy safely restores cornea’s surface in clinical trial
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Cancer? No, thank goodness, it’s just high cholesterol.
Cardiovascular disease remains nation’s top cause of death, but patients seem too casual about prevention, experts say
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Food, water — and a friendly face
Health professionals view social contact as basic human need. Now researchers have tracked neurological basis for it.
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Older adults at highest risk for suicide, yet have fewest resources
Study highlights imbalance in targets of online suicide prevention efforts
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Passage of time reduces smoking mortality risk for women who quit
Women who quit smoking significantly reduce their risk ofdeath from coronary heart disease within 5 years and have about a 20percent lower risk of death from smoking-related cancers within thattime…
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SEAS initiative supported by up to $20 million in BASF funding
The official opening of the BASF Advanced Research Initiative at Harvard was celebrated with an inaugural two-day symposium (April 29-30) on biofilms.
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Hormone therapy linked to increased risk of stroke
Postmenopausal women taking hormone therapy appear to have an increased risk of stroke regardless of when they started treatment, according to a report in the April 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
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Recent study: Better to be fit and thin than fit and fat
The risk of heart disease in women associated with being overweight or obese is reduced but not eliminated by higher levels of physical activity, according to a report in the April 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
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Animal interaction behind ‘Cambrian Explosion’?
Harvard Professor of Biology and of Geology Charles Marshall presented his Tuesday (April 29), suggesting that it was an increase in interactions between species, such as predation, that drove an escalating evolutionary process that led to the development of teeth and claws and the wide variety of characteristics that we see among Earth’s animals today.
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HMS Health Care Policy Department marks 20th anniversary
There have been many changes in the health care landscape over the two decades since Harvard Medical School’s (HMS) Department of Health Care Policy was inaugurated, but much work remains to ensure equitable, effective health care for all. That was the message of speakers at the 20th Anniversary Symposium of Harvard Medical School’s Department of Health Care Policy Tuesday (April 29) at the HMS New Research Building.
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Molecular analysis of T. rex protein shows shared avian ancestry
Putting more meat on the theory that dinosaurs’ closest living relatives are modern-day birds, molecular analysis of a shred of 68 million-year-old Tyrannosaurus rex protein — along with that of 21 modern species — confirms that dinosaurs share common ancestry with chickens, ostriches, and to a lesser extent, alligators.
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Paul Farmer: One patient at a time
Paul Farmer remembers his patients and the lessons they’ve taught him, even the hard ones.
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Exercise changes structure of heart
Massachusetts General Hospital (MGH) investigators, in collaboration with Harvard University Health Services, have found that 90 days of vigorous athletic training produces significant changes in cardiac structure and function, and that the type of change varies with the type of exercise performed.
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First targeted therapy for melanoma brings hope
In a demonstration that even some of the most hard-to-treat tumors may one day succumb to therapies aimed at molecular “weak points,” researchers at Dana-Farber Cancer Institute report the first instance in which metastatic melanoma has been driven into remission by a targeted therapy.
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Life expectancy worsening or stagnating
One of the major aims of the U.S. health system is improving the health of all people, particularly those segments of the population at greater risk of health disparities. In fact, overall life expectancy in the United States increased more than seven years for men and more than six years for women between 1960 and 2000.
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‘Father of Aerobics,’ HSPH alumnus, receives Healthy Cup Award
The Nutrition Round Table of the Harvard School of Public Health (HSPH) honored Kenneth Cooper, groundbreaking author of the best-selling book “Aerobics,” with its Healthy Cup Award this past Tuesday (April 22).
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Molecular analysis confirms T. Rex’s evolutionary link to birds
Putting more meat on the theory that dinosaurs’ closest living relatives are modern-day birds, molecular analysis of a shred of 68-million-year-old Tyrannosaurus rex protein — along with that of 21…
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Life expectancy stagnating, worsening, for large segment of U.S. population
A new, long-term study of mortality trends in U.S. counties from 1960 to 2000 finds that an overall average life expectancy increase of 6.5 years for men and women is…
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Nobel Prize winner discusses judgment and intuition
“Most of the time,” said noted psychologist and Nobel laureate Daniel Kahneman to a packed house of students, scholars, and faculty at the Yenching Auditorium (April 15), “we run at very low effort.” It was a sobering claim for the heady academic set, but according to Kahneman, no one is immune from the diagnosis. Even those with a high level of intelligence, he said, “don’t check themselves as much as they should.” The researcher was referring to the human tendency to judge things quickly, to go with the familiar or what looks correct instead of giving a question or a problem sufficient attention, reflection, and thought.
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Genetics key in new knowledge about complex diseases
Genetic researchers crossed a critical threshold last year in their ability to understand complex diseases, posting a number of new discoveries that advanced knowledge of ailments caused by small contributions from multiple genes, the environment, and other causes.
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Haiti clinic makes real gains
“13 October 2003.” Saintyl Louistess remembered the exact date she found out she had AIDS.
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Elevated urate levels may slow progression of Parkinson’s disease
Naturally elevated levels of the antioxidant urate may slow the progression of Parkinson’s disease in men. Researchers from the MassGeneral Institute for Neurodegenerative Disease (MGH-MIND) and Harvard School of Public…
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Less sleep, more TV leads to fat toddlers
Infants and toddlers who sleep less than 12 hours a day are twice as likely to become overweight by age 3 than children who sleep longer. In addition, high levels of television viewing combined with less sleep elevate the risk, so that children who sleep less than 12 hours and who view two or more hours of television per day have a 16 percent chance of becoming overweight by age 3.
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Potent new strategy for mapping animal species shakes up tree of life
Since the 1859 publication of Charles Darwin’s “Origin of Species,” efforts to trace evolutionary relationships among different classes of organisms have largely relied on external morphological observations.
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Reprogrammed adult skin cells treat Parkinson’s disease in animal model
Researchers at the Whitehead Institute and Harvard Stem Cell Institute(HSCI) have reported successfully reducing symptoms in a Parkinson’s disease rat model by using dopamine producing neurons derived from reprogrammed adult…
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A Genetic Cause for Iron Deficiency
The discovery of a gene for a rare form of inherited iron deficiency may provide clues to iron deficiency in the general population – particularly iron deficiency that doesn’t respond…
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Suboptimal sleep, TV watching correlate with overweight in infants and toddlers
Infants and toddlers who sleep less than 12 hours a day are twice as likely to become overweight by age 3 than children who sleep longer. In addition, high levels…
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Louise Ivers: A higher purpose
It was January 2008 and the baby – the youngest of four children – had been brought into the clinic Ivers heads at Boucan Carré, Haiti, after a period of vomiting and not eating well.
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Panel discusses history, future of alternative therapies
The history of alternative and complementary medical treatments can inform the medicine of today. That was the message of “Sectarian (to Unorthodox to Alternative) to Complementary Medicine: What Historical Perspectives can Tell Modern Medicine,” an afternoon of talks sponsored by the Countway Library’s Center for the History of Medicine on March 26.
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FDA deadlines may compromise drug safety by rushing approvals
Many medications are approved by the U.S. Food and Drug Administration (FDA) on the brink of congressionally mandated deadlines, and those drugs are more likely to face later regulatory intervention than those approved with greater deliberation, researchers at Harvard University have found. Drugs fast-tracked by the FDA are more likely to eventually be withdrawn from global markets for safety reasons, undergo manufacturing revisions, or face labeling changes, according to Daniel Carpenter, professor of government in Harvard’s Faculty of Arts and Sciences. The research was published in the March 27 issue of the New England Journal of Medicine.
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Eating meat led to smaller stomachs, bigger brains
Behind glass cases, Harvard’s Peabody Museum of Archaeology displays ancient tools, weapons, clothing, and art — enough to jar you back into the past. But the venerable museum offered a jarring moment of another sort in its Geological Lecture Hall last month (March 20). Paleoanthropologist Leslie Aiello delivered a late-afternoon talk on diet, energy, and evolution. It was jolting to see her, slight and matronly, stand before a story-high screen filled with images of rugged early hominids on a savannah, gathered around fallen game.
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Common aquatic animals show resistance to radiation
Scientists at Harvard University have found that a common class of freshwater invertebrate animals called bdelloid rotifers are extraordinarily resistant to ionizing radiation, surviving and continuing to reproduce after doses of gamma radiation much greater than that tolerated by any other animal species studied to date.
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Scientists learn what’s ‘up’ with retinal cells
Harvard University researchers have discovered a new type of retinal cell that plays an exclusive and unusual role in mice: detecting upward motion. The cells reflect their function in the physical arrangement of their dendrites, branchlike structures on neuronal cells that form a communicative network with other dendrites and neurons in the brain.
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Louise Ivers: ‘I can’t sleep at night because of the things that I see.’
Louise Ivers gently lifted the 7-month-old by his forearms, hoping he would pull himself up as a healthy child a third his age might. But his head hung limply back,…