National Center for Complementary and Integrative Health (NCCIH)
NIH…Turning Discovery Into Health

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Health Topics A-Z

Research Results by Date

Research spotlights of selected studies are shown below. For a full list of published NCCIH Research to-date, see PubMed.

Spotlights for 2008

According to the 2007 National Health Interview Survey, 38 percent of U.S. adults and 12 percent of children use some form of complementary and alternative medicine. (December 2008)
Cocoa beans in a cacao pod
Essential hypertension is characterized by both endothelial dysfunction and insulin resistance. (December 2008)
Woman performing Reiki.
People with fibromyalgia often turn to complementary health approaches, such as Reiki, to help relieve their pain. (November 2008)
Acupuncture applied to a man's ear.
Brain imaging has been used to explore how acupuncture relieves pain. (November 2008)
Understanding how the brain governs the placebo effect, a beneficial health outcome resulting from the expectation that an intervention will be effective, may help clinicians’ efforts to improve health. (November 2008)
A multi-year, placebo-controlled clinical trial involving 3,069 older adults found that ginkgo did not reduce the incidence of overall dementia and Alzheimer’s. (November 2008)
Person rubbing hands together in pain. © iStockphoto
Green tea may affect rheumatoid arthritis by causing changes in immune responses. (November 2008)
Results of a recent national survey of U.S. physicians’ current attitudes toward and use of placebo treatments. (October 2008)
X-ray of a joint.
A 2-year study of 572 people with moderate or severe knee osteoarthritis found that glucosamine and chondroitin were no more effective than placebo in slowing loss of knee cartilage. (October 2008)
Ginkgo © Steven Foster
Previous animal studies have indicated that an extract from leaves of the Ginkgo biloba tree may protect against stroke-related brain injury. (October 2008)