Snoozing worms help Penn researchers explain the evolution of sleep
183,128 articles from EurekAlert
Stem cells make bone marrow cancer resistant to treatment
Researchers report that the round worm has a sleep-like state, joining most of the animal kingdom in displaying this physiology. This research has implications for explaining the evolution and purpose of sleep and sleep-like states in animals, as well as identifying drug targets for sleep disorders.
UCLA researchers find cell protein that literally nips HIV in the bud
Scientists at the Johns Hopkins Kimmel Cancer Center say they have evidence that cancer stem cells for multiple myeloma share many properties with normal stem cells and have multiple ways of resisting chemotherapy and other treatments.
Uncovering the Achilles' heel of the HIV-1 envelope
UCLA researchers have found that a key protein in the body's dendritic cells can stop the virus that causes AIDS from "budding" -- part of the virus' life cycle that is crucial to its ability to replicate and infect other cells.
Ways to improve informed consent are testable, study says
New structural details illustrate how a promising class of antibodies may block human immunodeficiency virus (HIV)-1 infection and reveal valuable clues for design of an effective HIV-1 vaccine.
New ways to make sure people are adequately informed about the risks and benefits of taking part in a clinical trial can be field-tested for effectiveness as vigorously as new medical treatments themselves, a study led by a Johns Hopkins bioethicist suggests.
THURSDAY 10. JANUARY 2008
A new way to boost red blood cell numbers
A PIN(1) prick for lung scarring: inhibiting PIN1 reduces rodent lung scarring
A common treatment for anemia is administration of recombinant erythropoietin, a hormone that stimulates the production of rbc precursors by the bone marrow. Unfortunately, many patients with anemia do not respond to treatment with Epo. However, a new study in mice has indicated that the protein Gas6 might have valuable therapeutic potential for the treatment of individuals with anemia who fail to...
A warming climate can support glacial ice
Chronic asthma often results in scarring of the lung airways (airway fibrosis) and this can cause airway obstruction. The soluble factor TGF-beta-1, produced by inflammatory cells known as eosinophils, drives the processes that cause airway fibrosis. New data, generated in rodents, has now led to the suggestion that targeting the protein PIN1 might provide a new approach to limiting airway...
Africa's biggest mammals key to ant-plant teamwork
New research challenges the generally accepted belief that substantial ice sheets could not have existed on Earth during past super-warm climate events.
Auditory neurons in humans far more sensitive to fine sound frequencies than most mammals
Throughout the tropics, ants and Acacia trees live together in intricate interdependent relationships that have long fascinated scientists.
Autism risk higher in people with gene variant
Measuring the response of single cells in humans, UCLA researchers have discovered that auditory neurons in our brains can discern the subtlest of sound frequencies, far superior to what almost all non-human animals can discern.
Carbon offset warning from international team of scientists
This study strengthens evidence that a gene, CNTNAP2, is involved in autism, and suggests that the link is strongest when a variation in the gene is inherited from moms, rather than dads. The gene encodes a protein that's known to mediate interactions between brain cells and that appears to enable a crucial aspect of brain-cell development. A gene variant that altered either of these activities...
Chandra data reveal rapidly whirling black holes
Leading marine scientists from across the world have issued a warning that it is too early to sell carbon offsets from ocean iron fertilization.
Climate change, gender differences, health among EurekAlert! 10 Most Popular Stories in 2007
A new study using results from NASA's Chandra X-ray Observatory provides one of the best pieces of evidence yet that many supermassive black holes are spinning extremely rapidly. The whirling of these giant black holes drives powerful jets that pump huge amounts of energy into their environment and affects galaxy growth.
Common molecule notifies immune system of prostate cancer
Global climate change was a leading topic of interest for EurekAlert! users in 2007. This interest was reflected through two stories that portrayed significantly different messages about the future of Earth's climate. The EurekAlert! 10 Most Popular Stories in 2007 were identified by monitoring Web site traffic and isolating the news releases that received the highest total number of visits...
Cranberries really are a miracle cure for women
In experiments with mice, researchers have found that the body's immune system can use a surprisingly common molecule to recognize prostate tumors. Understanding how this protein signals the immune system to respond to malignant cells may help researchers refine immunotherapy strategies that harness the body's own immune system to fight tumors.
CSHL scientists identify cells that promote formation of lethal lung metastases
TAU research reveals two glasses a day keep bladder infections, ulcers, cavities and viruses away.
CU-Boulder scientists ready for NASA's MESSENGER Mission flyby of Mercury
Cancer patients usually ask what can be done after a primary tumor has already spread, or metastasized, to other organs. In many cases, they learn, little can be done. Hence the importance of a discovery by scientists at Cold Spring Harbor Laboratory of a type of cell that regulates the transformation of small, dormant lung metastases into large, aggressive metastases -- the kind that kill cancer...
Doctor 'pay-for-performance' improves patient care
NASA will point a power-packed $8.7 million University of Colorado at Boulder space instrument at some of the last unexplored terrain in the inner solar system when the MESSENGER spacecraft whips within 125 miles of Mercury's surface Jan. 14 at a mind-boggling 141,000 miles per hour.
Eat less or exercise more? Either way leads to more youthful hearts
A new study examines whether patients seeing physicians participating in a "pay-for-performance" incentive program receive better care than those who saw nonparticipating physicians. The health plan that was examined reimburses physicians based on the quality of care they provide.
Evidence of glaciation in 'super greenhouse' world
Overweight people who lose a moderate amount of weight get an immediate benefit in the form of better heart health, according to a study conducted at Washington University School of Medicine in St. Louis. And the heart improvements happen whether that weight is shed by eating less or exercising more.
Extreme obesity affects chances of kidney transplantation
US and European scientists have found evidence that glaciers existed during the "super greenhouse" world when it was so warm that alligators lived in the Arctic.
Feeling the heat
For patients on the waiting list for a kidney transplant, severe and morbid obesity are associated with a lower chance of receiving an organ, reports a study in the February Journal of the American Society of Nephrology.
Fighting pollution the poplar way: Trees to clean up Indiana site
Energy now lost as heat during the production of electricity could be harnessed through the use of silicon nanowires synthesized via a technique developed by researchers with the Lawrence Berkeley National Laboratory and the University of California at Berkeley. The far-ranging potential applications of this technology include DOE's hydrogen fuel cell-powered "Freedom CAR," and personal...
For nutrition info, moms like the Web best
Purdue University researchers are collaborating with Chrysler LLC in a project to use poplar trees to eliminate pollutants from a contaminated site in north-central Indiana.
A Web site is a better source of information on nutrition than a video game or printed pamphlet, according to a study of low-income mothers reported in the January issue of the Journal of Nutrition Education and Behavior.