T. Miyahara

Publications118
h-index21
Citations1,745
Highly Influential Citations42
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Role of CX3CL1/Fractalkine in Osteoclast Differentiation and Bone Resorption1
TLDR
A novel role of CX3CL1 is demonstrated in osteoblast-induced osteoclast differentiation and the CX 3CL1-CX3CR1 axis may be a novel target for the therapeutic intervention of bone resorbing diseases such as rheumatoid arthritis, osteoporosis, and cancer bone metastasis.
Stimulative Effect of Cadmium on Prostaglandin E2Production in Primary Mouse Osteoblastic Cells
TLDR
Cd by itself stimulated PGE2 production by two successive steps that Cd increased cPLA2 activity and then COX-2 induction, which suggests that the mechanism of Cd-induced P GE2 production is different from that of IL-1 alpha, which may require an activation of cPLA1.
Interleukin-10 inhibits RANKL-mediated expression of NFATc1 in part via suppression of c-Fos and c-Jun in RAW264.7 cells and mouse bone marrow cells.
TLDR
It is suggested that IL-10 may down-regulate osteoclastogenesis mainly through inhibition of the expression of NFATc1, c-Fos and c-Jun, which are known to be essential for osteOClastogenesis in time- and dose-dependent manners.
Activation of peroxisome proliferator-activated receptor gamma inhibits TNF-alpha-mediated osteoclast differentiation in human peripheral monocytes in part via suppression of monocyte chemoattractant…
TLDR
It is demonstrated that 15d-PGJ2 and ciglitazone down-regulate TNF-alpha-mediated osteoclast differentiation in human cells, in part via suppression of the action of MCP-1.
Effects of Cimicifugae rhizoma on serum calcium and phosphate levels in low calcium dietary rats and on bone mineral density in ovariectomized rats.
  • J. Li, S. Kadota, +4 authors T. Namba
  • Chemistry, Medicine
    Phytomedicine : international journal of…
  • 1 February 1997
TLDR
The effects of ethyl acetate-(EtOAc) soluble fractions from methanol (MeOH) extracts of Cimicifugae rhizoma derived from two species and four triterpenoids isolated from them on the serum calcium (Ca) and phosphate (P) levels in low - Ca dietary rats were studied.
New diarylheptanoids from the rhizomes of Dioscorea spongiosa and their antiosteoporotic activity.
TLDR
The isolated compounds, except for diospongin A, exerted potent inhibitory activities on bone resorption induced by parathyroid hormone in a bone organ culture system.
Inhibitory effects of cadmium on in vitro calcification of a clonal osteogenic cell, MC3T3-E1.
TLDR
It is suggested that the inhibitory effect of Cd on in vitro calcification of MC3T3-E1 cells may be due to both a depression of cell-mediated calcification and a decrease in physiochemical mineral deposition.
Interleukin-4 inhibits RANKL-induced expression of NFATc1 and c-Fos: a possible mechanism for downregulation of osteoclastogenesis.
TLDR
It is suggested that IL-4 may downregulate osteoclastogenesis in part through inhibition of the expression of transcription factors, NFATc1 and c-Fos in murine bone marrow cells.
Metabolism of 2,4-dinitrotoluene and 2,6-dinitrotoluene, and their dinitrobenzyl alcohols and dinitrobenzaldehydes by Wistar and Sprague-Dawley rat liver microsomal and cytosol fractions.
TLDR
It was concluded that the dinitrobenzaldehydes (2,4-DNBAl and 2,6-D NBAl) were intermediates in the oxidations of dinitRObenzyl alchols and d initrobenzoic acids of male Wistar and male Sprague-Dawley (S.D.) rat livers.
Interaction of zinc with cadmium and copper on ossification of embryonic chick bone in tissue culture
TLDR
In spite of the inhibitory effect on calcification, zinc prevented a decrease in bone matrix formation caused by cadmium but not that by copper, which would have resulted in decreased mineralization of bone, with or without suppression of matrix formation.
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