Posts Tagged ‘american’

Alternative medicine

Wednesday, April 15th, 2009

ALTERNATIVE MEDICINE
Following Congressional hearings, the U.S. Congress mandated the National Institutes of Health (NIH) to open the Office of Alternative Medicine (OAT) in 1993 and begin funding the most promising therapies, including macrobiotics, Native American medicine, homeopathy, music therapy, acupuncture, and other modalities. In 1998, the office was renamed the National Center for Complementary and Alternative Medicine, and Congress increased the annual budget from $20 million to $50 million.
Several medical schools, colleges, and universities have opened alternative medical centers. By 1998, 62 percent of medical schools in the U.S.—nearly two in every three—offered courses in alternative and complementary medicine.
The first public natural health clinic opened in Seattle in 1996. The clinic offers low cost natural therapies, including acupuncture, nutritional counseling, biofeedback, Chinese herbal medicine, and other alternative treatments to the public, especially low-income patients. The estimated cost of the pilot program, funded by the government, is $3 million.
Meanwhile, insurance companies are beginning to reimburse and encourage alternative medical practices. Oxford Health Plans became the first large medical insurer to offer alternative medicine coverage in 1997. No physician referral is required. The company cited a survey of its 1.5 million members showing that 33 percent had used some form of alternative medicine in the last five years. On the West Coast, Kaiser Permanente, the nation’s largest HMO, offers reimbursement for acupuncture and other alternative medical services in California. Blue Cross/Blue Shield are experimenting with similar coverage in the Pacific Northwest.
In a widely publicized survey, the New England Journal of Medicine reported in 1993 that one in every three Americans used alternative medicine.
By 1998, the figure had risen to 42 percent, and the number of visits to alternative practitioners exceeded those to primary care physicians. See Acupressure, Asthma, Fibroymyalgia, Five Transformations, Multiple Sclerosis, Native American Diet, Pregnancy, Skin Problems, Yin and Yang.
Sources: D. M. Eisenberg et al., “Unconventional Medicine in the United States,” New England Journal of Medicine 328:246-52, 1997; M. S. Wetzel et al., “Courses Involving Complementary and Alternative Medicine at U.S. Medical Schools,” Journal of the American Medical Association 280:784-87, 1999; David M. Eisenberg et al, “Trends in Alternative Medicine Use in the U.S., 1990-1997,” Journal of the American Medical Association 280:1569-1575, 1998.

• Clinical Guidelines in Complementary and Alternative Medicine (CAM) - In 1995, the Office of Alternative Medicine convened an expert panel to propose guidelines for clinical practice. Noting that estimated office visits to CAM providers (425 million a year) exceeded the number of visits to primary care physicians (388 million) and that Americans spent $10 billion annually on alternative therapies, the panel stated that it was important that the public be informed about the advantages and disadvantages of CAM.
While professional standards and practices need to be standardized, the panel questioned the assumption that recommendations for CAM must await clinical trial evidence. “Some would argue that the need for CAM to collect evidence in a format acceptable to conventional Western medicine (e.g., randomized trials) is itself a false premise. Reliance on empirical data from controlled experiments to infer effectiveness is a reductionist Western epistemology that is not shared by many of the cultures from which some CAM practices originate.” The report mentioned, for example, that acupuncture has been practiced for more than 3000 years, outspanning “the entire life of newtonian science by several millennia.” Organ-specific results are commonly less important than overall patient well-being, respecting the pa-tient’s personal experience, and dynamic relational issues. Conventional diagnostic models have little relevance, the panel noted, to traditional models of disease origin and development, especially those involving energy balance.
Like psychiatric and mental health therapies, CAM approaches are often not reproducible, because they are highly individualized or recognize an association between the dynamics of the clinician-patient relationship.
“In the long-term, a worthwhile goal is to develop holistic, cross-cutting practice guidelines that specify, for a patient with a given health problem (e.g., cancer), the full range of treatment options available in all areas of conventional medicine and CAM, the benefits and harms that can be expected from each choice, and the nature of the supporting evidence,” the panel concluded.
Source: “Clinical Practice Guidelines in Complementary and Alternative Medicine: An Analysis of Opportunities and Obstacles,” Archives of Family Medicine 6:149-54, 1997.

Cholesterol

Wednesday, April 15th, 2009

CHOLESTEROL
Cholesterol, a waxy, fatlike substance produced in the liver, contributes to cell membranes, vitamin D, sex and adrenal hormones, bile production, and other metabolic processes. However, in excess, it causes atherosclerosis, or the build up of plaque in artery walls, that can cause a heart attack, stroke, or peripheral artery disease.
High serum cholesterol is associated with consumption of foods high in saturated fat and dietary cholesterol, including eggs, meat, poultry, and dairy foods. Whole grains, beans, soy products, sea vegetables, and other plant quality foods can suppress or lower cholesterol in the blood. Risk of cardiovascular disease is commonly measured by total cholesterol, the ratio of total cholesterol to “good” HDL cholesterol, and various cholesterol fractions. See Beans, Complex Carbohydrates, Heart Disease, High Blood Pressure, Oats, Sesame, Soy Foods, Tarahumara Diet, U.S. Surgeon-General’s Report, Vegetarians, Vitamin B-12, Wakame, Wheat, Whole Grains.

• Pioneer Study Links Diet, Blood Pressure, and Cholesterol - In one of the first studies to show the direct effects of animal food on raising blood pressure, a study of 21 macrobiotic persons by Harvard Medical School researchers found that the addition of 250 grams of beef per day for four weeks to their regular diet of whole grains and vegetables raised serum cholesterol levels 19 percent. Systolic blood pressure also rose significantly. After returning to a low-fat diet, cholesterol and blood pressure values returned to previous levels.
Source: F. M. Sacks et al., “Effects of Ingestion of Meat on Plasma Cholesterol of Vegetarians,” Journal of the American Medical Association 246:640-44, 1981.

• Soy Lowers Cholesterol - Soy protein in tofu, tempeh, and other soy products can significantly lower cholesterol levels in people with moderately high to high levels, according to a review of 38 trial studies. The higher the cholesterol, researchers said, the greater the ability of soy protein to bring it down. The report found that a diet including 47 grams of soy protein a day cut cholesterol levels by an average of 9.3 percent in a month. For those with cholesterols over 300, the count dropped 20 percent. Harmful triglycerides are also blocked by soy protein, the scientists observed.
“Even a 10 to 15 percent reduction in blood cholesterol levels results in a 20 to 30 percent reduction in the risk of coronary heart disease,” said Dr. James W. Anderson of the University of Kentucky and one of the authors of the report. “This has the potential of making a huge impact on American public health.”
Source: Natalie Angier, “Health Benefits from Soy Protein,” New York Times, August 3, 1995.

• Reducing Cholesterol in Children - Top American health officials joined in calling for a low-fat, low-cholesterol diet for everyone over age two to prevent heart disease in later life, not just for adults at risk for heart attacks and other cardiovascular disease. The recommendations, sponsored by a panel convened by the National Heart, Lung and Blood Institute and the Cholesterol Education Program and endorsed by a coalition of forty-two major health and medical organizations, called for the cholesterol testing of all children whose parents or grandparents had heart attacks or other cardiovascular problems, including a parent with blood cholesterol over 240.
The panel called for reductions in fat consumption and for intake of more grains, vegetables, and fruit.
Groups that endorsed the report included the American Medical Association, the American College of Physicians, the American Public Health Association, the U.S. Food and Drug Administration, the U.S. Department of Agriculture, and the U.S. Department of Health and Human Services.
Source: Warren E. Leary, “Cholesterol Tests Are Recommended for a Quarter of Children,” New York Times, April 9, 1991.

• Low-Fat Diet Reduces Cholesterol - In a study of 1,232 men aged 40 to 49 with high cholesterol who were put on a low-fat diet, researchers found a 13 percent reduction in mean total cholesterol levels in comparison to a control group. At the end of 7.5 years, the incidence of heart attack and sudden death was 47 percent lower in the experimental group. The scientists attributed the changes to reduced cigarette smoking and diet.
Source: I. Hjermann, “Effect of Diet and Smoking Intervention on the Incidence of Coronary Heart Disease: Report from the Oslo Study Group of a Randomised Trial in Healthy Men,” Lancet 2:1303-10, 1981.

• Heart Deaths Decline - America’s declining cholesterol levels and change to a diet lower in fat have coincided with a 54 percent decline in heart disease deaths between 1978 and 1990. During this period, the average cholesterol level in adults dropped from 213 milligrams per deciliter of blood to 205, a 4 percent decline, according to figures compiled by the National Center for Health Statistics.
Studies have shown that for every 1 percent drop in cholesterol level, there is almost a 2 to 4 percent drop in coronary heart disease. The proportion of adults with high cholesterol (over 240) fell from 26 percent to 20 percent during this period.
Source: “Study Shows Drop in Cholesterol Levels in U.S.,” Boston Globe, June 16, 1993.