title: Effects of volatile components and ethanolic extract from Eclipta prostrata on proliferation and differentiation of primary osteoblasts.
abstract: Eclipta prostrata, an aromatic plant, is known in Chinese herbal medicine for the treatment of various kidney diseases. In the present study, the volatile components were isolated from the aerial parts of this plant by hydrodistillation and analysed by GC-MS. A total of 55 compounds, which were the major part (91.7%) of the volatiles, were identified by matching mass spectra with a mass spectrum library (NIST 05.L). The main components were as follows: heptadecane (14.78%), 6,10,14-trimethyl-2-pentadecanone (12.80%), n-hexadecanoic acid (8.98%), pentadecane (8.68%), eudesma-4(14),11-diene (5.86%), phytol (3.77%), octadec-9-enoic acid (3.35%), 1,2-benzenedicarboxylic acid diisooctyl ester (2.74%), (Z,Z)-9,12-octadecadienoic acid (2.36%), (Z)-7,11-dimethyl-3-methylene-1,6,10-dodecatriene (2.08%) and (Z,Z,Z)-1,5,9,9-tetramethyl-1,4,7-cycloundecatriene (2.07%). The effects of volatile components and ethanolic extract from the aerial parts of this plant on the proliferation and differentiation of primary osteoblasts were evaluated by the MTT method and measuring the activity of alkaline phosphatase (ALP activity). Both volatile components and ethanolic extract (1 microg/mL to 100 microg/mL) significantly (p < 0.01) stimulated the proliferation and increased the ALP activity of primary osteoblasts. These results propose that E. prostrata can play an important role in osteoblastic bone formation, and may possibly lead to the development of bone-forming drugs.
authors.affiliation: Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350108, China.
authors.forename: Xiong-Hao
authors.initials: XH
authors.lastname: Lin
authors.forename: Yan-Bin
authors.initials: YB
authors.lastname: Wu
authors.forename: Shan
authors.initials: S
authors.lastname: Lin
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Zeng
authors.forename: Pei-Yuan
authors.initials: PY
authors.lastname: Zeng
authors.forename: Jin-Zhong
authors.initials: JZ
authors.lastname: Wu
mesh_terms: D000469:Alkaline Phosphatase / Q000378:metabolism; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D036601:Eclipta / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis / Q000494:pharmacology*; D010006:Osteoblasts / Q000166:cytology* / Q000187:drug effects* / Q000201:enzymology; D010936:Plant Extracts / Q000494:pharmacology*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D009822:Oils, Volatile; D010936:Plant Extracts; D000431:Ethanol; D000469:Alkaline Phosphatase