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Effects of Scutellaria radix Extract on Osteoblast Differentiation and Osteoclast Formation  

Shin, Jeong-Min (Department of Food and Nutrition, Research Institute of Human Ecology, Seoul National University)
Park, Chan-Kyung (Department of Food and Nutrition, Research Institute of Human Ecology, Seoul National University)
Shin, Eun-Ju (Univera)
Jo, Tae-Hyung (ECONET Corporate Center)
Hwang, In-Kyeong (Department of Food and Nutrition, Research Institute of Human Ecology, Seoul National University)
Publication Information
Korean Journal of Food Science and Technology / v.40, no.6, 2008 , pp. 674-679 More about this Journal
Abstract
Scutellaria radix (SR) has been utilized as a traditional medicine for a variety of diseases including Rheumatoid arthritis and its major flavonoids - baicalein, baicalin, and wogonin - have been reported to exert beneficial health effects, including anti-bacterial, anti-viral, anti-inflammatory, and free-radical scavenging. However, the mechanisms underlying this effect remain poorly understood. The principal objective of this study was to determine the effect of SR on osteoblast and osteoclast cells. SR extract was prepared using 70% ethanol solvent. Osteoblastic MC3T3-E1 cells and osteoclast precursor Raw 264.7 macrophage cells were utilized. SR extract increased MC3T3-E1 cell proliferation and stimulated alkaline phosphatase activity dose-dependently, 152.0% of the control at concentration $1{\mu}g/mL$. Additionally, SR extract ($1{\mu}g/mL$) stimulated Bone nodule formation activity in MC3T3-E1 cells, approximately 223.3% of the control, 20 days after the exposure. In addition, SR extract significantly reduced the number of tartrate-resistant acid phosphatase-positive (TRAP+) multinucleated cells from Raw 264.7 cells. In conclusion, SR extract stimulates the proliferation and bioactivities of boneforming osteoblasts, and inhibits the activities of bone-resorbing osteoclasts to a certain degree.
Keywords
Scutellaria radix; osteoblast; osteoclast; alkaline phosphatase; tartrate-resistant acid phosphatase;
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