A diagnosis of cancer carries such emotional upheaval that a person’s prolonged feelings of depression can eat away at the possibility for long-term survival. In a new study of cancer patients published in the current issue of Psychosomatic Medicine, researchers have found that people’s lives were more likely to be cut short when they had more symptoms of depression.
University of Rochester psychologist Kirk Warren Brown and co-authors used a number of demographic, medical, cancer
Increasing carbon dioxide in the atmosphere will benefit photosynthesis in U.S. corn crops in the future by relieving drought stress, say researchers at the University of Illinois at Urbana-Champaign.
According to preliminary findings of a new study — being released this week in Hawaii during Plant Biology 2003, the annual meeting of the American Society of Plant Biologists — photosynthesis of maize on average increased by 10 percent under projected carbon dioxide conditions in the
A collagen-based wound sealant recently developed at Texas A&M University could be an alternative for human and animal wound care treatment.
The material – which can be poured or injected into the wound – speeds the closure of wounds, said Dr. Douglas Miller, research scientist with the Texas Agricultural Experiment Station and one of the scientists working on the project.
In testing, Miller and his colleagues found a significant difference in closure between treated and
Drivers with type-1 diabetes reported higher numbers of driving mishaps according to a multi-center study led by researchers at the University of Virginia Health System. The study investigated whether or not diabetes treatments to control blood sugar level are associated with increased risks for driving mishaps. The results will be published in the August edition of Diabetes Care.
Hypoglycemia, or low blood sugar, occurs when blood glucose levels drop too low to properly fuel the body. A
The scientist from the Institute of Plants and Animals Ecology, Russian Academy of Sciences (Ural Branch), has made a description of the giant dear remains, found in the Ural, and has determined their age. Giant deer Megaloceros giganteus originated as a species in the preglacial epoch, lived through the glaciation period and died out about 8-9 thousand years ago after the climate had become warmer. The remains will help to investigate how the giant dear lived and why this species disappeared. The r
Professor Lance Lanyon, Principal of The Royal Veterinary College, Karla Lee, Helen Jessop, Rosemary Suswillo, Gul Zaman from the Department of Basic Sciences at The Royal Veterinary College have shown in their research that the Estrogen Receptor has a fundamental role in bone cells by adjusting the bone architecture to match the loads individuals place on them. Their paper is published in the latest edition of Nature.
The strain imposed by mechanical loading on bone tissue normally stimulat
Astronomers using ESA’s X-ray observatory, XMM-Newton, have discovered a pair of X-ray tails, stretching 3 million million kilometres across the sky. They emanate from the mysterious neutron star known as Geminga. The discovery gives astronomers new insight into the extraordinary conditions around the neutron star.
A neutron star measures only 20-30 kilometres across and is the dense remnant of an exploded star. Geminga is one of the closest to Earth, at a distance of about 500 light-years.
In an article appearing in a special issue of the Journal of Neuro-oncology, researchers at Cedars-Sinai Medical Center’s Maxine Dunitz Neurosurgical Institute describe a complex cell-level process that allows malignant brain tumors to protect themselves by damaging the thymus, rapidly degrading the immune system. In a second article, Institute scientists identify a molecular mechanism that causes cell death of cancer-fighting lymphocytes as they infiltrate a brain tumor.
“We are
Older adults with anemia are twice as likely to have a significant decline in physical performance that could threaten their independence, report researchers from Wake Forest University Baptist Medical Center in the current issue of the American Journal of Medicine.
“Our results suggest that anemia is an independent risk factor for physical decline, which puts older adults at higher risk for nursing home admission, disability and death,” said Brenda Penninx, Ph.D., associate professor
Scientists from the Lawrence Livermore National Laboratory have determined that human-induced changes in ozone and well-mixed greenhouse gases are the primary drivers of recent changes in the height of the tropopause.
Earlier research has shown that increases in the height of the tropopause over the past two decades are directly linked to stratospheric ozone depletion and increased greenhouse gases.
The new research uses climate model results to provide more quantitative est
A team of scientists, including several from the National Center for Atmospheric Research (NCAR), has determined that human-related emissions are largely responsible for an increase in the height of the tropopause – the boundary between the two lowest layers of the atmosphere. The research results, which will be published July 25 in the journal Science, provide additional evidence that emissions from power plants, automobiles, and other human-related (or anthropogenic) sources are having profound im
Researchers have discovered a novel class of compounds that affects the cell’s garbage disposal system which degrades proteins and opens a window for understanding a vital cell function as well as for treating heart disease and cancer.
The distinctive mechanisms of these compounds are reported in the July 29 issue of Biochemistry and online earlier this month by Dr. Michael Simons, professor of medicine and of pharmacology and toxicology at Dartmouth Medical School and head of ca
Thought to be the most addictive form of nicotine in tobacco smoke, free-base nicotine is found at a wide range of levels in popular brands
When it comes to nicotine content, all cigarettes are not created equal, according to a new study by researchers at Oregon Health & Science University. In fact, the study finds that some commercial cigarette brands contain 10 to 20 times higher percentages of nicotine in the so-called “free-base” form — the form thought to be most addictive — t
Two University of Iowa Health Care physicians are calling attention to the issue of polyherbacy, the excessive or inappropriate ingestion of herbs for the treatment or prevention of disease, especially in older patients.
Jose Ness, M.D., UI assistant professor (clinical) of internal medicine, and Nicole Nisly, M.D., associate professor (clinical) of internal medicine and director of the UI Complimentary and Alternative Medicine Clinic, published a letter on polyherbacy in the May issu
As an eyewitness sits on the stand in a courtroom recalling details of an incident, how much of what he or she remembers actually happened?
False memories are a common occurrence in the courtroom and in everyday life, and have long been considered by psychologists as a side effect of efforts to boost memory. New research from Tufts University has answered the question of how to increase memory, without also increasing corresponding false memories.
“The better we understand
A new study led by researchers at the University of California, Berkeley, has found genetic differences in a sampling of a species of hot spring-loving microbes from around the world.
The findings, published by the journal Science, at the Science Express website, challenges the prevailing theory of microbial biodiversity.
It is well accepted in evolutionary science that species of animals and plants are more closely related when they are geographically near each other. When
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