PMID- 24116280 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20131011 LR - 20211021 IS - 1976-9148 (Print) IS - 2005-4483 (Electronic) IS - 1976-9148 (Linking) VI - 20 IP - 1 DP - 2012 Jan TI - Effects of Ethyl Acetate Extract of Poncirus trifoliata Fruit for Glucocorticoid-Induced Osteoporosis. PG - 89-95 LID - 10.4062/biomolther.2012.20.1.089 [doi] AB - Poncirus trifoliata fruit (PTF) affects the digestive and cardiovascular systems, and kidney function. The authors studied the effects of ethyl acetate (EtOAc) extract of PTF on the activities of osteoblasts and in an animal model. The main compounds of the EtOAc extract, naringin and poncirin have been confi rmed by HPLC and NMR analysis. Effects of osteoblastic differentiation were mea-sured by alkaline phosphatase (ALP) activity, osteopontin (OPN) protein expression and osteoprotegerin (OPG) mRNA expression in MC3T3-E1 cells. Also, osteoclast differentiation was measured by multinucleated cells (MNCs) formation through tartrate resistance acid phosphatase (TRAP)-positive staining. Bone mineral density (BMD) was measured before and after treatment with EtOAc extract of PTF in prednisolone-induced osteoporotic mice. Dexamethasone (DEX) decreased OPN and OPG expression level in MC3T3-E1 cells and ALP activity was decreased by DEX dose-dependently. EtOAc extract of PTF recovered the levels of ALP activity, and the expression of OPN and OPG in MC3T3-E1 cells treated with DEX. In osteoclast differentiation, multinucleated TRAP-positive cell formation was significantly suppressed by the EtOAc extract of PTF. Total body BMD was restored by EtOAc extract of PTF in prednisolone-induced osteoporotic mice. In conclusion, EtOAc extract of PTF recovered DEX-mediated deteriorations in osteoblastic and osteoclastic functions, and increased BMD in glucocorticoid-induced osteoporosis. FAU - Yoon, Hyung-Young AU - Yoon HY AD - Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 443-721. FAU - Cho, Yun-Seok AU - Cho YS FAU - Jin, Qinglong AU - Jin Q FAU - Kim, Hyun-Gyu AU - Kim HG FAU - Woo, Eun-Rhan AU - Woo ER FAU - Chung, Yoon-Sok AU - Chung YS LA - eng PT - Journal Article PL - Korea (South) TA - Biomol Ther (Seoul) JT - Biomolecules & therapeutics JID - 101472832 PMC - PMC3792207 OTO - NOTNLM OT - Ethyl acetate extract OT - Glucocorticoid-induced osteoporosis OT - Osteoblast OT - Osteoclast OT - Poncirus trifoliata fruit EDAT- 2012/01/01 00:00 MHDA- 2012/01/01 00:01 PMCR- 2012/01/01 CRDT- 2013/10/12 06:00 PHST- 2011/10/25 00:00 [received] PHST- 2011/11/02 00:00 [revised] PHST- 2011/11/02 00:00 [accepted] PHST- 2013/10/12 06:00 [entrez] PHST- 2012/01/01 00:00 [pubmed] PHST- 2012/01/01 00:01 [medline] PHST- 2012/01/01 00:00 [pmc-release] AID - ooomb4-20-89 [pii] AID - 10.4062/biomolther.2012.20.1.089 [doi] PST - ppublish SO - Biomol Ther (Seoul). 2012 Jan;20(1):89-95. doi: 10.4062/biomolther.2012.20.1.089.