Type

Journal Article

Authors

Eileen R Gibney
Dolores O'Riordan
Jc Jacquier
Danika Martyn
Eunice Marete
Niamh Harbourne
Elaine M Drummond

Subjects

Microbiology

Topics
interleukin 1 il 1 common diseases comet assay tnf alpha salicylic acid mitochondrial activity il 6 tumour necrosis factor tnf

Inhibition of Proinflammatory Biomarkers in THP1 Macrophages by Polyphenols Derived From Chamomile, Meadowsweet and Willow bark. (2012)

Abstract Antiinflammatory compounds in the diet can alleviate excessive inflammation, a factor in the pathogenesis of common diseases such as rheumatoid arthritis, atherosclerosis and diabetes. This study examined three European herbs, chamomile (Matricaria chamomilla), meadowsweet (Filipendula ulmaria L.) and willow bark (Salix alba L.), which have been traditionally used to treat inflammation and their potential for use as antiinflammatory agents. Aqueous herbal extracts and isolated polyphenolic compounds (apigenin, quercetin and salicylic acid, 0-100 μM) were incubated with THP1 macrophages, and interleukin (IL)-1β, IL-6 and tumour necrosis factor-alpha (TNF-α) were measured. At concentrations of 10 μM, both apigenin and quercetin reduced IL-6 significantly ( p < 0.05). Apigenin at 10 μM and quercetin at 25 μM reduced TNF-α significantly ( p < 0.05). Amongst the herbal extracts, willow bark had the greatest antiinflammatory activity at reducing IL-6 and TNF-α production. This was followed by meadowsweet and then chamomile. The lowest effective antiinflammatory concentrations were noncytotoxic (MTT mitochondrial activity assay). The Comet assay, which was used to study the protective effect of the isolated phenols against oxidative damage, showed positive results for all three polyphenols. These are the first findings that demonstrate the antiinflammatory capacity of these herbal extracts. Copyright © 2012 John Wiley & Sons, Ltd.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

Eileen R Gibney, Dolores O'Riordan, Jc Jacquier, Danika Martyn, Eunice Marete, Niamh Harbourne, Elaine M Drummond

Experts in our system

1
Eileen R Gibney
University College Dublin
Total Publications: 98