Suppressive effects of Anoectochilus formosanus extract on osteoclast formation in vitro and bone resorption in vivo

Kikuko Masuda, Mayumi Ikeuchi, Tomoyuki Koyama, Kohji Yamaguchi, Je Tae Woo, Tomio Nishimura, Kazunaga Yazawa

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Anoectochilus formosanus, a plant native to Taiwan, is used as a folk medicine. It was found that oral administration of A. formosanus extract (AFE) (500 mg/kg) for 4 weeks suppressed bone weight loss and trabecular bone loss in ovariectomized mice, an experimental model of osteoporosis. Although AFE at 12.5 and 25 μg/ml inhibited osteoclast formation in co-culture of osteoblasts and bone marrow cells, AFE did not inhibit the formation of osteoclast progenitor cells and preosteoclast cells in bone marrow cells and RAW264 cells. However, AFE (at 12.5 and 25 μg/ml) decreased RANKL expression. These results suggested that AFE might suppress the bone loss caused by estrogen deficiency through suppression of RANKL expression required for osteoclast formation.

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalJournal of Bone and Mineral Metabolism
Volume26
Issue number2
DOIs
Publication statusPublished - 2008 Mar
Externally publishedYes

Fingerprint

Osteoclasts
Bone Resorption
Bone Marrow Cells
Bone and Bones
Traditional Medicine
Coculture Techniques
Osteoblasts
Taiwan
Osteoporosis
Oral Administration
Weight Loss
Estrogens
Theoretical Models
Stem Cells
In Vitro Techniques

Keywords

  • Anoectochilus formosanus
  • Bone resorption
  • Osteoclast
  • Osteoporosis
  • RANKL

ASJC Scopus subject areas

  • Endocrinology

Cite this

Suppressive effects of Anoectochilus formosanus extract on osteoclast formation in vitro and bone resorption in vivo. / Masuda, Kikuko; Ikeuchi, Mayumi; Koyama, Tomoyuki; Yamaguchi, Kohji; Woo, Je Tae; Nishimura, Tomio; Yazawa, Kazunaga.

In: Journal of Bone and Mineral Metabolism, Vol. 26, No. 2, 03.2008, p. 123-129.

Research output: Contribution to journalArticle

Masuda, Kikuko ; Ikeuchi, Mayumi ; Koyama, Tomoyuki ; Yamaguchi, Kohji ; Woo, Je Tae ; Nishimura, Tomio ; Yazawa, Kazunaga. / Suppressive effects of Anoectochilus formosanus extract on osteoclast formation in vitro and bone resorption in vivo. In: Journal of Bone and Mineral Metabolism. 2008 ; Vol. 26, No. 2. pp. 123-129.
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