Studies and Analyses

Studies and Analyses

Improving Stroke Care with Standardized Admission Forms

Using standardized forms at the time stroke patients are admitted to and discharged from the hospital can improve care, according to a study published in the August 9, 2005 issue of Neurology, the scientific journal of the American Academy of Neurology.

Studies have shown that several treatments for stroke patients reduce the amount of disability, complications and the risk of having another stroke. The treatments are for people with ischemic stroke, which is the most common type

Studies and Analyses

Study Reveals Movie Villains Smoke More Than Heroes

Smoking not more common in movies than US population

New research shows that lower-class, nonsuccessful “bad guys” smoke more often in movies than wealthy movie heroes, a finding that contradicts previous research examining smoking in the movies. A study published in the August issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians, is the first objective, prospective analysis to quantify the prevalence of smoking in contemporary American movies a

Studies and Analyses

New Study Predicts Non-Responders to Targeted Cancer Drugs

By the time the human genome was mapped, cancer researchers had already begun investigating the proteins that were encoded by these newly identified genes. As the molecular engines that control all functions of the body, scientists wanted to find out how proteins work to promote health, or malfunction to cause disease. Subsequently, their discoveries have led to the development of a whole new arsenal of therapies designed to target proteins in cancer cells. But not all patients respond to treat

Studies and Analyses

Majority of U.S. Faces Allergy Sensitivities, New Study Reveals

More than fifty percent of the U.S. population tested positive to one or more allergens, according to a large national study. The new findings, based on data from the third National Health and Nutrition Examination Survey (NHANES III), shows that 54.3% of individuals aged 6-59 years old had a positive skin test response to at least one of the 10 allergens tested. The highest prevalence rates were for dust mite, rye, ragweed, and cockroach, with about 25% of the population testing positive to ea

Studies and Analyses

MDCT Arthrography: A Better Way to Assess Hip Dysplasia

MDCT arthrography is an accurate method for assessing cartilage loss in patients with hip dysplasia and may be more reliable than MRI in such instances, says a new study by researchers from Osaka University Medical School in Japan.

Hip dysplasia is a malformation or alteration of the ball (femur head) and socket (acetabulum) joint bones of the hip that can wear away the surrounding cartilage, which can lead to arthritis and other problems. “The condition is often caused by a bir

Studies and Analyses

Study yields insights into pathogenic fungi—and beer

Chemotherapy and organ transplantation not only take a huge toll on patients, but they can compromise the immune system and leave patients vulnerable to infections from microbes such as pathogenic fungi–the fastest-growing cause of hospital-acquired infections. Now researchers from Whitehead Institute for Biomedical Research have discovered one possible reason why these fungal microbes are such a scourge.

According to the research appearing in the August 7 online edition of t

Studies and Analyses

Smaller Tumors Drive Improved Breast Cancer Survival Rates

A new study finds that the size of newly diagnosed breast cancers has shifted towards smaller tumors, even within conventional cancer stage categories, and that this shift accounts for a proportion of the improvement seen in breast cancer survival over the last 30 years. The authors of the report say that failure to account for this shift in tumor size can lead to overestimation of the impact of treatment advances. The study is published in the September 15, 2005 issue of CANCER, a peer-reviewed j

Studies and Analyses

Depression and Fatigue: No Link to Cancer Risk, Study Finds

Feeling depressed and fatigued does not increase a person’s risk for cancer, according to a new study. Severely exhausted people, however, do engage in behavior that is associated with a higher cancer risk. The study, published in the September 15, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society, is the first prospective study using the “vital exhaustion” questionnaire to investigate this link.

The concept of vital exhaustion – described as feelings o

Studies and Analyses

Smoking Couples Face Increased Stroke Risk, Study Finds

American Heart Association rapid access journal report:

In a study of women smokers, those whose spouses also smoked had a higher risk of stroke than those married to nonsmokers, according to a study in Stroke: Journal of the American Heart Association.

“There is evidence suggesting that your exposure to secondhand smoke can increase your chances of getting heart disease. We asked if that was also true for stroke,” said the study’s lead author Adnan I. Qureshi M.D.

Studies and Analyses

Breastfeeding Beyond Infancy: Aussie Tots Weigh In

Breastfeeding toddlers: it’s considered a social no-no, which means very few mothers end up breastfeeding their babies past 12 months of age. A University of Western Sydney researcher has carried out Australia’s first study of mums and bubs who breastfeed beyond infancy – looking at why these women are bucking the trend against premature weaning, and asking the toddlers themselves how they feel about breastfeeding.

Dr Karleen Gribble from the UWS School of Nursing, Famil

Studies and Analyses

Weapon Performance Boosts Mating Success in Collared Lizards

In territorial species with polygynous mating systems, reproductive success reflects phenotypic variation. At the gross level, such phenotypic variation can include that of body size and weapon morphology, as well as of weapon function and performance. In a study published in the September issue of The American Naturalist, A. Kristopher Lappin (Northern Arizona University) and Jerry F. Husak (Oklahoma State University) use the eastern collared lizard (Crotaphytus collaris ), a sexually dimorp

Studies and Analyses

Strategies for Containing Flu Outbreaks: New Study Insights

Containment in a medium-sized Southeast Asian community may be possible, though challenging, if implemented early, researchers say

Though quick to caution about the many things that could go wrong, researchers say that it may be possible to contain a Southeast Asian outbreak of avian influenza in humans, buying precious time for the production of a vaccine.

Using a computer model to simulate an outbreak in a rural Southeast Asian population, the scientists have shown how

Studies and Analyses

Big Game Hunters, Not Climate Change, Ended Sloths’ Reign

Prehistoric big game hunters and not the last ice age are the likely culprits in the extinction of giant ground sloths and other North American great mammals such as mammoths, mastodons and saber-toothed tigers, says a University of Florida researcher.

Determining whether the first arrival of humans or the warm-up of the American continent at the end of the last Ice Age was responsible for the demise of prehistoric sloths has puzzled scientists because both events occurred at the

Studies and Analyses

Cognitive Therapy Cuts Suicide Attempts by 50% in Study

Recent suicide attempters treated with cognitive therapy were 50 percent less likely to try to kill themselves again within 18 months than those who did not receive the therapy, report researchers supported by the National Institutes of Health’s (NIH) National Institute of Mental Health (NIMH) and the Center for Disease Control and Prevention (CDC). A targeted form of cognitive therapy designed to prevent suicide proved better at lifting depression and feelings of hopelessness than the usua

Studies and Analyses

Rats’ response to ’stop snacking’ signal diminished by high fat diet

Rats fed a high fat diet were less sensitive to a hormonal ’stop eating’ signal than rats on a low fat diet when they were given access to a high calorie, high fat snack that the animals find yummy.

Dr. Mihai Covasa, assistant professor of nutritional sciences and a member of the Penn State Neuroscience Institute, led the study. He says, “When we gave the rats doses of a ’stop eating’ hormone, the rats on the low fat diet significantly suppressed their intake

Studies and Analyses

Largest Study on Unrelated Bone Marrow Transplants for Leukemia

Multi-institutional study addresses critical GVHD complication

Together with 16 other institutions in the United States, University of Minnesota researchers led the largest study to date in patients with leukemia and related disorders undergoing bone marrow transplantation from unrelated donors. The study was designed to determine whether one of two general approaches to prevent graft-versus-host-disease (GVHD), a potentially lethal complication, might result in improved survival.

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