On Monday, Pfizer took the doctor and inventor of the artificial heart off the mound as pitchman for the world's best- selling medication, after his credentials - in medicine and in his own exercise regimen - came under fire.
In the ads, which began their heavy rotation on TV and in print in 2006, Jarvik touts the benefits of Pfizer's cholesterol-lowering drug. As of Monday afternoon, Jarvik's photo still appeared on Pfizer's Web site advertising the drug.
But House Democrats said the ads could be misleading to consumers because Jarvik appeared to be giving medical advice, even though he is not licensed to practice medicine. While Jarvik holds a medical degree, he did not complete the certification requirements to practice medicine.
The study raises ethical questions about when it's acceptable to withhold perhaps futile treatment and let people die, and whether public health issues should ever be considered.
"Advanced dementia is a terminal illness," said study co-author Dr. Susan Mitchell, a senior scientist with the Harvard-affiliated Hebrew Senior Life Institute for Aging Research in Boston. "If we substituted 'end-stage cancer' for 'advanced dementia,' I don't think people would have any problem understanding this."
Many experts, including the Alzheimer's Association, consider Alzheimer's and other dementias to be fatal brain diseases. Patients die of infections such as pneumonia and other complications, but the underlying cause is damage to brain cells.
“Eating a big meal just before going to bed has been found in studies to elevate triglyceride levels in the blood for a period of time,” r. Louis J. Aronne, director of the comprehensive weight control program at NewYork-Presbyterian Hospital/Weill Cornell Medical Center, said. A higher triglyceride level “has been associated with metabolic syndrome and insulin resistance,” both related to weight gain, he said.
Dr. Aronne suggested a theoretical framework for why late meals may stay with you. “If you ate 500 calories during the day but walked around afterward, your muscles would be competing with your fat cells for the calories and could burn them up as energy for physical activity,” he said. “But if you consume it at bedtime, with no physical activity, the body has no choice but to store the calories away as fat.”
Heart disease in Europe claims over two million lives every year, and cost the European Union 192 million euros (285 million dollars) in 2006, a group of health organizations said Tuesday.
A statistical study by the European Society of Cardiology and the European Heart Network also shows huge differences across Europe in death rates due to coronary artery disease and strokes, the two main types of heart disease.
Several countries in eastern and northern Europe -- notably Romania, Bulgaria, Latvia and Estonia -- have mortality rates five to seven times higher than western European nations, especially France, Portugal and Switzerland, the study showed.
Another systematic review, by the Centers for Disease Control and Prevention, was published in the journal Medicine and Science in Sports and Exercise in 2004. It looked at multiple studies and found that stretching “was not significantly associated with a reduction in total injuries,” but also concluded that more research was needed.
For now, many experts say that what may work is a quick warm-up, like low-impact aerobics or walking. It also helps to ease into an activity by starting off slow and then increasing speed, intensity or weight (for lifting).
Research suggests that stretching does not affect soreness or risk of injury during exercise.
Scientists are investigating other causes for the deterioration of brain function, including the deposition of a protein called amyloid in brain tissue. This process is thought to be accelerated by inflammation in the body.
Research shows that the foods we eat probably play a role in decreasing inflammation in the body. Taking this into account, the brain-healthy diet includes:
* Five to 10 servings of fruits and vegetables daily. This includes apples and onions for their flavonoids, dark green leafy vegetables such as kale and spinach for their carotenes, cooked tomatoes for lycopene (another carotene) and blueberries for their antioxidants.
Between August and October 2007 Food Standards Agency (FSA) surveyed 2627 people about if they had five or more portions of fruit and vegetables the day before being questioned. There were 58% positive answers, which shows an increase compared to 2006's 55%. However, the increase is too low to indicate healthy diet improvement.
Besides, the survey shows disparities between different social classes: AB class reported 71% positive answers, DE class reported 45% positive answers. This means, that higher social grades are more successful in diet management that lower ones.
Disparities also occur between men and women: 63% of surveyed women were able to manage five or more portions of fruit and vegetables compared to 54% men.
Dr. Kenneth R. Wilund and colleagues found that the overall gallstone weight was 2.5-fold greater in sedentary mice compared with mice that exercised. The researchers suggest that exercise may provide similar benefit to humans.
"The basic physiology of gallstone formation is pretty similar in humans and mice," Wilund told Reuters Health. Many of the proteins involved in the liver's cholesterol and bile acid metabolism are very similar, he said.
"So it is reasonable to suggest that the changes we believe were responsible for the reduction in gallstone formation in the exercise-trained mice could also occur in response to exercise training in humans," commented Wilund, of the University of Illinois, Urbana.