Nano drugs
2010-10-07
Researchers in India have demonstrated that producing nanoscopic crystals of a pharmaceutical product can allow the medication to be absorbed by the gut even if the drug is not soluble in water.
Research suggests that more than half of the medicinal drugs being developed by the pharmaceutical industry dissolve only very weakly in water, if at all. This is a major problem for administering such drugs as it means they are not effective if taken by mouth. The industry has developed many approaches to addressing this problem, such as adding a small quantity of an organic ...
Study sheds new light on how the sun affects the Earth's climate
2010-10-07
The Sun's activity has recently affected the Earth's atmosphere and climate in unexpected ways, according to a new study published today in the journal Nature. The study, by researchers from Imperial College London and the University of Colorado, shows that a decline in the Sun's activity does not always mean that the Earth becomes cooler.
It is well established that the Sun's activity waxes and wanes over an 11-year cycle and that as its activity wanes, the overall amount of radiation reaching the Earth decreases. Today's study looked at the Sun's activity over the period ...
Provocative new Montreal study probes link between breast cancer and air pollution
2010-10-07
Air pollution has already been linked to a range of health problems. Now, a ground-breaking new study suggests pollution from traffic may put women at risk for another deadly disease. The study, published in the prestigious journal Environmental Health Perspectives, by researchers from The Research Institute of the MUHC (RI MUHC; Dr. Mark Goldberg), McGill University (Drs. Goldberg, Dan Crouse and Nancy Ross), and Université de Montréal (Dr. France Labrèche), links the risk of breast cancer – the second leading cause of death from cancer in women – to traffic-related air ...
VTT printed hemoglobin test on paper
2010-10-07
VTT printed the paper with antibodies that react to the sample. The test result can be read in the form of a line, for example, which either does or does not appear depending on the sample – just like in the pregnancy tests already familiar to consumers. It is also possible to print instructional images or text, for example, either on or alongside the test.
Printed paper test can be used to test quickly and easily for the presence of a given substance. The test can be adapted to different purposes by exchanging the identifying antibody printed on the paper for another, ...
First clinical trial of gene therapy for muscular dystrophy lends insight into the disease
2010-10-07
CHAPEL HILL – A clinical trial designed to replace the genetic defect causing the most common form of muscular dystrophy has uncovered an unexpected aspect of the disease. The trial, based on therapy designed by scientists at the University of North Carolina at Chapel Hill School of Medicine, showed that some patients mount an immune response to the dystrophin protein even before they have received the gene therapy.
The puzzling results, which came from trials at Columbus Children's Hospital in Ohio, suggest that the immune systems of a number of patients -- once thought ...
BLADE software eliminates 'drive-by downloads' from malicious websites
2010-10-07
Insecure Web browsers and the growing number of complex applets and browser plug-in applications are allowing malicious software to spread faster than ever on the Internet. Some websites are installing malicious code, such as spyware, on computers without the user's knowledge or consent.
These so-called "drive-by downloads" signal a shift away from using spam and malicious e-mail attachments to infect computers. Approximately 560,000 websites -- and 5.5 million Web pages on those sites -- were infected with malware during the fourth quarter of 2009.
A new tool that ...
Psychologist finds 'shocking' impact on name recall
2010-10-07
It's an experience shared by everyone: You run into someone you know, but his or her name escapes you.
Now, Temple psychologist Ingrid Olson has found a way to improve the recall of proper names.
Olson dedicates her research to understanding human memory. In a recent study, she found that electric stimulation of the right anterior temporal lobe of the brain improved the recall of proper names in young adults by 11 percent. Her study appears this month in the journal Neuropsychologia.
"We know a lot about how to make people's memory worse, but we don't know very ...
New fish feeds made from fish byproducts
2010-10-07
Fish byproducts may be a new source of fish feed, thanks to research by U.S. Department of Agriculture (USDA)-funded scientists in Hawaii.
Research scientist Dong-Fang Deng and her colleagues with the Oceanic Institute in Waimanalo, Hawaii, are collaborating with USDA food technologist Peter Bechtel to develop the new fish feeds. Bechtel is with the USDA Agricultural Research Service (ARS) Subarctic Agricultural Research Unit in Kodiak, Alaska. ARS is the USDA's principal intramural scientific research agency.
The scientists are taking fish parts that would normally ...
One lock, many keys
2010-10-07
In order to track down pathogens and render them harmless, the immune system must be able to recognize myriad different foreign substances and react to them. Scientists at the Max Planck Institute of Immunobiology and the Centre for Biological Signalling Studies BIOSS at the University of Freiburg have discovered how the immune system's B-cells can be activated by numerous substances from our environment. The receptor molecules on the surface of the B-cells are only activated when the receptor subunits separate following the binding of foreign substances. These findings ...
$5 million NSF grant will upgrade and expand NJIT radio telescope array
2010-10-07
A $5 million National Science Foundation (NSF) grant to upgrade and expand a set of radio frequency antennas at Owens Valley Solar Array (OVSA) http://www.ovsa.njit.edu/ has been awarded to NJIT. The new facility is expected to help scientists better understand the nature of solar flares which greatly interest government, industry and the military.
"Space weather incidents such as coronal mass ejections and solar flares can cause problems with cell phone reception, GPS systems, power grids and other technologies," said NJIT Distinguished Professor Dale Gary, a world-renowned ...
Experts advocate realigning type 2 diabetes treatments with disease's natural history
2010-10-07
Chevy Chase, MD— A new consensus statement published in the September, 2010, issue of The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) finds that the increasing recognition that beta-cell failure occurs much earlier and severely than commonly believed suggests that regular glycemia screening, early identification of patients at metabolic risk and prompt and aggressive intervention deserves greater emphasis.
The consensus statement is based on the findings of a working group of basic researchers, clinical endocrinologists and primary care ...
New findings pull back curtain on relationship between iron and Alzheimer's disease
2010-10-07
BETHESDA, Md., Oct. 6, 2010 – Massachusetts General Hospital researchers say they have determined how iron contributes to the production of brain-destroying plaques found in Alzheimer's patients.
The team, whose study results appear in this week's Journal of Biological Chemistry, report that there is a very close link between elevated levels of iron in the brain and the enhanced production of the amyloid precursor protein, which in Alzheimer's disease breaks down into a peptide that makes up the destructive plaques.
Dr. Jack T. Rogers, the head of the hospital's neurochemistry ...
Long-extinct passenger pigeon finds a place in the family tree
2010-10-07
CHAMPAIGN, Ill. — With bits of DNA extracted from century-old museum specimens, researchers have found a place for the extinct passenger pigeon in the family tree of pigeons and doves, identifying for the first time this unique bird's closest living avian relatives.
The new analysis, which appears this month in Molecular Phylogenetics and Evolution, reveals that the passenger pigeon was most closely related to other North and South American pigeons, and not to the mourning dove, as was once suspected.
Naturalists have long lamented that one of North America's most ...
Wistar researchers discover new class of objects encoded within the genome
2010-10-07
Despite progress in decoding the genome, scientists estimate that fully 95 percent of our DNA represents dark, unknown territory. In the October 1 issue of the journal Cell researchers at The Wistar Institute shed new light on the genetic unknown with the discovery of the ability of long non-coding RNA (ncRNA) to promote gene expression. The researchers believe these long ncRNA molecules may represent so-called gene enhancer elements—short regions of DNA that can increase gene transcription. While scientists have known about gene enhancers for decades, there has been no ...
UF study: Emotional effects of heavy combat can be lifelong for veterans
2010-10-07
GAINESVILLE, Fla. — The trauma from hard combat can devastate veterans until old age, even as it influences others to be wiser, gentler and more accepting in their twilight years, a new University of Florida study finds.
The findings are ominous with the exposure of today's men and women to heavy combat in the ongoing Iraq and Afghanistan wars on terror at a rate that probably exceeds the length of time for U.S. veterans during World War II, said UF sociologist Monika Ardelt.
"The study shows that we really need to take care of our veterans when they arrive home, because ...
New soy-based natural S-equol supplement reduces menopausal hot flashes, muscle and joint pain in first study among US women
2010-10-07
CHICAGO, IL (Oct. 6, 2010) – A new women’s health, whole soy germ-based nutritional supplement containing Natural S-equol reduced the frequency of moderate to severe hot flashes and reduced muscle and joint pain in the first study of its kind among postmenopausal U.S. women, according to peer-reviewed data presented as a poster presentation at the North American Menopause Society (NAMS) Annual Meeting. Also, the first study to report Natural S-equol contributions to bone health and a study of Natural S-equol safety were presented at NAMS.
“These data from U.S. women ...
Tip sheet: Soy-based natural S-equol supplement data presented from 4 studies at the North American Menopause Society Annual Meeting
2010-10-07
Four clinical studies that add to the evidence about the use of a new nutritional supplement containing the whole soy germ-based ingredient Natural S-equol to improve health were presented at the North American Menopause Society (NAMS) Annual Meeting. These studies include a poster about a first-of-its-kind study in U.S. women that documents the effectiveness of Natural S-equol in reducing the frequency of moderate to severe hot flashes and reducing muscle and joint pain. A second poster reported the first clinical study about Natural S-equol contributions to bone health. ...
Family ties bind desert lizards in social groups
2010-10-07
SANTA CRUZ, CA-- Researchers at the University of California, Santa Cruz, have found that a species of lizard in the Mojave Desert lives in family groups and shows patterns of social behavior more commonly associated with mammals and birds. Their investigation of the formation and stability of family groups in desert night lizards (Xantusia vigilis) provides new insights into the evolution of cooperative behavior.
The researchers reported the results of a five-year study of desert night lizards in a paper published in the Proceedings of the Royal Society B: Biological ...
GOES-13 on top of new seventeenth Atlantic (sub) tropical depression
2010-10-07
The GOES-13 satellite keeps a vigilant eye on the Atlantic Ocean and eastern U.S. and this morning at 5 a.m. EDT it saw System 97L organize into the seventeenth tropical depression of the Atlantic Ocean season. The only catch is that it is actually a subtropical depression, so it is currently known as Subtropical Depression 17 (TD17).
A subtropical storm is one where central convection (rapidly rising air that forms thunderstorms) is fairly near the center and it has a warming core in the mid-levels of the troposphere. Subtropical cyclones differ from tropical cyclones ...
Skin color linked to social inequality in contemporary Mexico, study shows
2010-10-07
WASHINGTON, DC, October 6, 2010 — Despite the popular, state-sponsored ideology that denies the existence of prejudice based on racial or skin color differences in Mexico, a new study from The University of Texas at Austin provides evidence of profound social inequality by skin color.
According to the study, individuals with darker skin tones have less education, have lower status jobs, are more likely to live in poverty, and are less likely to be affluent.
Andrés Villarreal, an associate professor in the Department of Sociology and the Population Research Center affiliate, ...
Swedish Research Council to bar cheaters
2010-10-07
Barred for up to ten years from receiving research grants from the Swedish Research Council. There will be serious consequences for the few researchers who are guilty of plagiarism, falsification, or inventing results.
"We need to be able to rely on research findings," says Pär Omling, Director General of the Swedish Research Council.
The Swedish Research Council has made a decision about how it should deal with researchers who are found to have committed research fraud. Any researcher who has been vetted by a panel of experts within the Central Ethical Review Board ...
Gene therapy reveals unexpected immunity to dystrophin in patients with Duchenne muscular dystrophy
2010-10-07
An immune reaction to dystrophin, the muscle protein that is defective in patients with Duchenne muscular dystrophy, may pose a new challenge to strengthening muscles of patients with this disease, suggests a new study appearing in the October 7, 2010, issue of The New England Journal of Medicine.
Duchenne muscular dystrophy (DMD) is a hereditary and lethal neuromuscular disease characterized by progressive loss of muscle strength and integrity. Genetic information important for production of a functional dystrophin protein is deleted from the DMD gene of many patients. ...
Drug that helps adults addicted to opioid drugs also relieves withdrawal symptoms in newborns
2010-10-07
(PHILADELPHIA) - Thousands of infants each year have exposure to opioids before they are born. Over half of these infants are born with withdrawal symptoms severe enough to require opioid replacement treatment in the nursery. Such treatment is associated with long hospital stays which interferes with maternal/infant bonding. Now, a team of researchers at Thomas Jefferson University has tested a semi-synthetic opioid they say has the potential to improve the treatment of these newborns, which could save hundreds of millions in healthcare costs annually if future tests continue ...
High risk of acute mountain sickness on Mount Kilimanjaro
2010-10-07
New Rochelle, NY, October 6, 2010 –Climbers of high peaks such as Mount Kilimanjaro are at high risk for Acute Mountain Sickness (AMS). Trekkers should not ignore AMS warning signs, which can progress to more serious medical outcomes. Mountain climbers can best minimize their risk for altitude sickness by becoming acclimatized to increased altitudes before an ascent, according to a study in the current issue of High Altitude Medicine & Biology, a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com). The article is available free online at www.liebertpub.com/ham
The ...
Novel reference material to standardize gene therapy applications
2010-10-07
New Rochelle, NY, October 6, 2010—The introduction of a new, fully characterized viral vector for use as reference material to help standardize gene therapy protocols in research applications and human clinical trials is described in an article in Human Gene Therapy, a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com). The article, which is published online ahead of print, is available free online at www.liebertpub.com/hum
The growing popularity in the gene therapy community of using recombinant adeno-associated virus (rAAV) vectors as vehicles ...
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