Linked Life Data

18684219

Source:http://linkedlifedata.com/resource/pubmed/id/18684219

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-9-2
pubmed:abstractText
There is no satisfactory treatment for pulmonary fibrosis, which is characterized by altered control of proliferation of mesenchymal fibroblasts and extracellular matrix production. Oxymatrine is an alkaloid extracted from the Chinese herb Sophora japonica (Sophora flavescens Ait.) with capacities of anti-inflammation, inhibition of immune reaction, antivirus, protection against acute lung injury and antihepatic fibrosis. In this study, the effect of oxymatrine on pulmonary fibrosis was investigated using a bleomycin-induced pulmonary fibrosis mouse model. The results showed that bleomycin challenge provoked severe pulmonary fibrosis with marked increase in hydroxyproline content of lung tissue and lung fibrosis fraction, which was prevented by oxymatrine in a dose-dependent manner. In addition, bleomycin injection resulted in a marked increase of myeloperoxidase activity and malondialdehyde level that was attenuated by oxymatrine. Administration of oxymatrine inhibited the proliferation of murine lung fibroblasts, arrested the cells at G(0)/G(1) phase and reduced the expression of cell cycle regulatory protein, cyclin D1 in vitro. Furthermore, the steady-state production of collagen and the expression of alpha1(I) pro-collagen and alpha2(I) pro-collagen mRNA in fibroblasts were inhibited by oxymatrine in a dose-dependent manner. These results suggested that oxymatrine may attenuate pulmonary fibrosis induced by bleomycin in mice, partly through inhibition of inflammatory response and lipid peroxidation in lung induced by bleomycin and reduction of fibroblast proliferation and collagen synthesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1742-7843
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
103
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
278-86
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Attenuation of bleomycin-induced lung fibrosis by oxymatrine is associated with regulation of fibroblast proliferation and collagen production in primary culture.
pubmed:affiliation
Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical College, Guangzhou, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't