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Green tea polyphenols avert chronic inflammation-induced myocardial fibrosis of female rats.
MedLine Citation:
PMID:  21373880     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Green tea proposes anti-inflammatory properties which may attenuate chronic inflammation-induced fibrosis of vessels. This study evaluated whether green tea polyphenols (GTP) can avert fibrosis or vascular disruption along with mechanisms in rats with chronic inflammation. TREATMENTS: Forty 3-month-old female rats were assigned to a 2 (placebo vs. lipopolysaccharide, administration) × 2 (no GTP vs. 0.5% GTP in drinking water) factorial design for 12 weeks. METHODS: Masson's trichrome staining evaluated myocardial fibrosis in coronary vessels and surrounding myocardium. Whole blood specimens were counted for differentials. Spleen tumor necrosis factor-α (TNF-α) mRNA expression was determined by real-time RT-PCR. Data were analyzed by two-way analysis of variance (ANOVA) followed by mean separation procedures. RESULTS: After 12 weeks, lipopolysaccharide administration induced myocardial fibrosis in vessels and surrounding myocardium, spleen TNF-α mRNA expression, and leukocytes, while GTP supplementation in drinking water significantly averted such observation. CONCLUSIONS: GTP attenuates myocardial fibrosis through a suppression of chronic inflammation and innate immune responses.
Chwan-Li Shen; Christina Samathanam; Owatha L Tatum; Suzanne Graham; Christine Tubb; Jay J Cao; Dale M Dunn; Jia-Sheng Wang
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-4
Journal Detail:
Title:  Inflammation research : official journal of the European Histamine Research Society ... [et al.]     Volume:  -     ISSN:  1420-908X     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508160     Medline TA:  Inflamm Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Pathology, Texas Tech University Health Sciences Center, BB 198, 3601 4th street, Lubbock, TX, 79430-9097, USA,
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