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Thyme Oil can Suppress Inflammation and Inhibit COX2

  • Date: 2010/01/13 American Society for Biochemistry and Molecular Biology
  • Synopsis : essential oils from thyme, clove, rose, eucalyptus, fennel and bergamot, can suppress the inflammatory COX-2 enzyme similar to resveratrol.

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For those who do not drink, researchers have found that six essential oils - from thyme, clove, rose, eucalyptus, fennel and bergamot, can suppress the inflammatory COX-2 enzyme, in a manner similar to resveratrol, the chemical linked with the health benefits of red wine. They also identified that the chemical carvacrol was primarily responsible for this suppressive activity.

These findings, appearing in the January issue of Journal of Lipid Research , provide more understanding of the health benefits of many botanical oils and provide a new avenue for anti-inflammatory drugs.

Essential oils from plants have long been a component of home remedies, and even today are used for their aromatherapy, analgesic (e.g. cough drops), or antibacterial properties. Of course, the exact way they work is not completely understood. However, Hiroyasu Inoue and colleagues in Japan believed that many essential oils might target COX-2 much like compounds in wine and tea.

So, they screened a wide range of commercially available oils and identified six (thyme, clove, rose, eucalyptus, fennel and bergamot) that reduced COX-2 expression in cells by at least 25%. Of these, thyme oil proved the most active, reducing COX-2 levels by almost 75%.

When Inoue and colleagues analyzed thyme oil, they found that the major component -carvacrol- was the primary active agent; in fact when they use pure carvacrol extracts in their tests COX-2 levels decreased by over 80%.

From the article: "Carvacrol, a component of thyme oil, activates PPAR-gamma and suppresses COX-2 expression" by Mariko Hotta, Rieko Nakata, Michiko Katsukawa, Kazuyuki Hori, Saori Takahashi, and Hiroyasu Inoue

Corresponding Author: Hiroyasu Inoue, Department of Food Science and Nutrition, Nara Women's University, Nara, Japan; Tel: +81-742-20-3458, Email: inoue@cc.nara-wu.ac.jp

The American Society for Biochemistry and Molecular Biology is a nonprofit scientific and educational organization with over 12,000 members in the United States and internationally. Most members teach and conduct research at colleges and universities. Others conduct research in various government laboratories, nonprofit research institutions and industry. The Society's student members attend undergraduate or graduate institutions.

Founded in 1906, the Society is based in Bethesda, Maryland, on the campus of the Federation of American Societies for Experimental Biology. The Society's purpose is to advance the science of biochemistry and molecular biology through publication of the Journal of Biological Chemistry, the Journal of Lipid Research , and Molecular and Cellular Proteomics, organization of scientific meetings, advocacy for funding of basic research and education, support of science education at all levels, and promoting the diversity of individuals entering the scientific work force.

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