Why doesn't the immune system attack the small intestine?
... In a study in the February issue of Nature Immunology, and which is currently available on the journal's Web site as an advanced online publication, investigators led by Shannon Turley, PhD, of Dana-Farber identify an unlikely group of peacemakers: lymph node cells that instruct ke...Two copies of G2019S Parkinson's gene mutation doesn't lead to more severe disease
... In most diseases with a genetic cause or component, two copies of a bad gene lead to more severe visible manifestation of the disease. Researchers expected to see worse symptoms, the disease start earlier in life and a shorter life span for those with two copies of the LRRK2 ge...Prostatic irradiation doesn't lead to any appreciable increase in rectal cancer risk
Men who receive radiation therapy for prostate cancer are not at any appreciable increased risk of developing rectal cancer compared to those not given radiation therapy, according to a new study published in the July 1, 2006, issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of ASTRO, the American Society for Therapeutic Radiology and Oncology.... ......Lowering blood pressure doesn't prevent cognitive impairment, dementia
Lowering blood pressure does not appear to prevent cognitive or dementia-related disorders, a desired effect in light of the large number of elderly adults who suffer from both cognitive impairment and hypertension....... Authors of a new systematic review analyzed three studies comprising 12,091 patients with hypertension who were treated with either medication or lifestyle strategies for at lea...Computer information systems in hospitals: What works and what doesn't?
The success or failure of a hospital's computer information system (CIS) for physicians to request lab tests and results and to prescribe treatments for in-patients depends on whether physicians accept or resist the system's implementation. Lapointe and Rivard analyze the reactions to CIS implementations at 3 hospitals to understand better why physician resistance is often high and why implementa...For some, aspirin doesn't increase risk of recurring hemorrhagic stroke
Aspirin is typically prescribed for people at risk of having an ischemic stroke to prevent blood clots. Because aspirin may cause bleeding, it is typically avoided in people who have had a hemorrhagic stroke, also called intracerebral hemorrhage. A new study, however, finds that aspirin may not increase the risk of recurrent intracerebral hemorrhage. The study is published in the January 24, 2006...Hospital volume doesn't explain racial disparity in cardiovascular procedure deaths
Although hospitals that perform fewer cardiovascular procedures tend to have higher death rates than higher-volume hospitals, and although African-American and Hispanic patients tend to be treated at lower-volume hospitals, differences in volume do not explain racial disparities in cardiovascular procedure death rates, according to a new study in the Jan. 17, 2006, issue of the Journal of the Ame...Popularity doesn't necessarily make Prozac best antidepressant choice
Although Prozac has achieved phenomenal marketing success, it may not be as effective as certain other antidepressants, according to a recent systematic review. ...... Researchers led by Andrea Cipriani, M.D., compared Prozac (fluoxetine) to other selective serotonin reuptake inhibitors, and to other antidepressants and found that Zoloft (sertraline) and Effexor (venlafaxine) were somewhat better...Colonoscopy with normal results doesn't reassure IBS patients
A UCLA/VA study found that irritable bowel syndrome (IBS) patients under age 50 who undergo a colonoscopy with normal results aren't reassured about their condition or seem to have an improved quality life due to the procedure ruling out a more serious condition. ...... Previous studies have shown that 10 percent of all colonoscopies in the U.S. are performed for evaluation of IBS symptoms. Irri...Wealth doesn't always equal health
Across Europe, children from poor families don't necessarily have worse health than children with more affluent and better educated parents, say researchers in this week's BMJ....... These findings challenge the widely held view that adverse social circumstances in childhood lead to an increased risk of coronary heart disease in later life....... The study involved 3,189 randomly selected schoolc...Study: Nose doesn't smell like the eyes see
Johns Hopkins scientists have uncovered new details of how smelly things create signals in the nose that eventually go to the brain. The findings raise issues about how the process involved has been described for many years in biology textbooks. ......The textbooks say that our sense of smell converts odors into brain signals just like our vision converts light into brain signals. But the new wor...Radiation exposure during virtual colonoscopy doesn't significantly raise cancer risks
Bethesda, Maryland (July 1, 2005) The risk of developing cancer as a result of being exposed to X-rays during computed tomography colonography (also known as "virtual colonoscopy" or CT colonography) is considerably less than 1 percent, according to an article published today in the American Gastroenterological Association (AGA) journal . Researchers say the radiation risk can be further reduc...Knowledge of Tuskegee study doesn't increase medical mistrust
Knowledge of the Tuskegee Study of Untreated Syphilis in the Negro Male (Tuskegee Study) does not increase distrust in medical care, according to researchers from the Johns Hopkins Bloomberg School of Public Health. Most of those surveyed were unaware of the Tuskegee Study and, of those who had heard of it, most could not accurately answer multiple-choice questions about the study. The researcher...Gene testing doesn't increase anxiety, depression in children of people with Alzheimer's
(Boston) -- Adult children of people with Alzheimer's disease were satisfied and unharmed by the experience of genetic risk assessment, even when results suggested they might be at risk, according to new findings presented by Robert C. Green at the recent International Conference on the Prevention of Dementia, sponsored by the Alzheimer's Association. Green, a medical doctor and professor of neu...Muscle-derived stem cell culture doesn't need to be pure for incontinence treatment
SAN ANTONIO, May 23 A pure culture of muscle-derived stem cells (MDC) may not be needed to cure incontinence according to a University of Pittsburgh study. Results of this study will be presented today at the annual meeting of the American Urological Association (AUA) in San Antonio, and will be published in abstract 929 in the AUA proceedings....... "When isolating a specific type of cell for t...Money doesn't buy happiness - - except when disability strikes
ANN ARBOR, Mich. -- The old saying that 'money doesn't buy happiness' may hold true most of the time. But when a serious health problem comes along, financial resources may really cushion the blow to a person's psyche, a new study suggests. ...... The finding, made by researchers at the University of Michigan Health System and the VA Ann Arbor Healthcare System, stands in contrast to previous res...