[Pleiotropic effects of PPARgamma agonists on bone remodeling].
Peroxisome proliferator-activated receptor-gamma (PPARgamma) regulates both glucose and bone mass. PPARgamma activation has been shown to affect bone through an increased in bone marrow adiposity and decreased in osteoblastogenesis, resulting in reduced bone formation. In fact, clinical studies have reported that PPARgamma agonists may cause increased risk of bone fractures and decreased bone mineral density. On the other hand, PPARgamma agonists may have protective effect on inflammatory bone resorption through inhibition of RANKL- or TNFalpha-induced osteoclastogenesis. In this report, we review recent studies showing pleiotropic effects of PPARgamma agonists on bone formation and inflammatory bone resorption observed at joints in rheumatoid arthritis.
Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital.
Eiji
E
Sugiyama
Hiroyuki
H
Hounoki
Koichiro
K
Shinoda
Hirofumi
H
Taki
Tatsuro
T
Miyahara
D000818:Animals; D016723:Bone Remodeling / Q000187:drug effects*; D001862:Bone Resorption; D006801:Humans; D010012:Osteogenesis / Q000187:drug effects; D047495:PPAR gamma / Q000819:agonists*
D047495:PPAR gamma