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Speed of PSA increase matters more than PSA level

In the largest study of its kind to date, Mayo Clinic researchers report that prostate specific antigen (PSA) kinetics, both velocity and doubling time, can be used to predict disease progression and likelihood of death after radical prostatectomy surgery, suggesting that this could be used to guide treatment decisions.

14 Nov 2005

Mayo Clinic provides new strategy for designing better treatments for juvenile dermatomyositis

Mayo Clinic researchers, working with colleagues at the University of Minnesota and University of Pittsburgh, are the first to describe a new role for a specialized cell of the immune system in children suffering from a rare muscle-damaging disease known as juvenile dermatomyositis (JDM).

14 Nov 2005

Bright light therapy may aid patients with depressive and bipolar disorders

A report in the November Cell Metabolism reveals powerful effects of light on the adrenal glands, a finding that might explain the broad benefits of bright light therapy for a variety of conditions, including sleep and depressive disorders, according to researchers.

14 Nov 2005

Role of statin therapy in patients with heart failure

An advanced study launched at Yale School of Medicine is evaluating the role of statin therapy in patients with heart failure, one of the leading causes of hospitalization in people over age 65.

14 Nov 2005

Gender affects the way a person's brain responds to humor

Need more evidence that men and women are different? Look no further than the Sunday funnies. According to a new Stanford University School of Medicine study, gender affects the way a person's brain responds to humor.

14 Nov 2005

Fundamental flaws in many medical studies must be fixed in order to catch signs of harm

Only by analyzing results using a statistical method that considers several factors at once -- for instance, overall heart attack risk, rather than just individual risk factors such as age -- will researchers truly be able to see how the risks and benefits of a treatment vary from patient to patient, the study suggests.

14 Nov 2005

Molecular origins of diabetes

An unexpected twist to a discovery reported just two months ago may significantly improve our understanding about the molecular origins of diabetes.

14 Nov 2005

University of Alberta researchers pioneer gene therapy to restore alveoli and lung capillaries in damaged rat lungs

The good news is that medical advances in perinatal care have allowed us to save many more premature babies. The bad news is they're often at risk of developing bronchopulmonary dysplasia--a chronic lung disease caused by having to place the tiny infants on ventilators and oxygen-rich therapy for acute respiratory failure.

13 Nov 2005

New understanding of the disease process involved in atherosclerosis

The progression of the artery-clogging disease atherosclerosis is linked to the inability of specialized bone marrow cells to continuously repair damage to the arterial lining, Duke University Medical Center researchers have demonstrated.

13 Nov 2005

How protein-enriched meals decrease hunger and reduce eating

Researchers have uncovered new evidence to explain the observation that diets rich in protein stunt the appetite, according to a report in the November Cell Metabolism.

13 Nov 2005

Habitual coffee drinking is not associated with an increased risk of hypertension in women

Habitual coffee drinking is not associated with an increased risk of hypertension in women, although an association was found with the consumption of sugared or diet colas, according to a study in the November 9 issue of JAMA: The Journal of the American Medical Association.

13 Nov 2005

Phenolic compounds in olive oil may explain cardiovascular health benefits associated with Mediterranean Diet

Phenolic compounds in olive oil, which have antioxidant, anti-inflammatory and anti-clotting properties, may explain cardiovascular health benefits associated with the so-called Mediterranean Diet, according to a new study in the Nov. 15, 2005, issue of the Journal of the American College of Cardiology.

13 Nov 2005

Cellular signal may determine life or death for damaged brain cells

Scientists at the Universities of Heidelberg and Ulm and a unit of the European Molecular Biology Laboratory (EMBL) in Monterotondo, Italy, have discovered that a specific signal within brain cells may determine whether they live or die after a stroke.

13 Nov 2005

Promising functional readouts of immunity in a blood-stage malaria vaccine trial

A malaria vaccine remains the most desired tool to combat the worsening malaria epidemic in many developing countries. Pierre Druilhe and colleagues (from the Institut Pasteur in Paris) have completed the first human trial of a vaccine based on MSP3, a protein present on the surface of the malaria parasite, with very encouraging results.

13 Nov 2005

Pretreating a vein graft with edifoligide prior to coronary bypass graft surgery does not lower the rate of graft failure

Coronary artery bypass graft (CABG) surgery is one of the most common surgical procedures performed in the United States, according to background information in the article. In appropriately selected patients, CABG surgery results in improved survival, relief of angina, and improved quality of life. Despite frequent use of artery grafts, vein grafts remain the most frequently used conduit.

13 Nov 2005

Obstructive sleep apnea significantly increases the risk of stroke

An observational study of more than 1,000 patients at the Yale Center for Sleep Medicine found that obstructive sleep apnea significantly increases the risk of stroke or death from any cause, and that the risk is linked to sleep apnea severity.

13 Nov 2005

Statins reduce the risk of stroke after carotid artery endarterectomy

Carotid artery endarterectomy (CEA) is the most commonly performed operation to prevent stroke in the United States. However, the operation itself carries a small risk of stroke.

13 Nov 2005

Scientists discover why lung, but not skin, anthrax infections are lethal

Scientists from the Max Planck Institute for Infection Biology in Berlin discovered why lung, but not skin, anthrax infections are lethal. As reported in the newest issue of PloS Pathogen (November 2005) Neutrophils, a form of white blood cells, play a key role in anthrax infections.

13 Nov 2005

Human umbilical cord blood cells may widen treatment window for stroke

An experimental treatment that spares disability from acute stroke may be delivered much later than the current three-hour treatment standard – a potential advance needed to benefit more stroke victims.

13 Nov 2005

Warnings about blood clots with contraceptive patch

According to U.S. regulators, Johnson & Johnson's Ortho Evra contraceptive patch contains higher levels of a hormone known to cause blood clots than average birth control pills.

13 Nov 2005