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Reduction of colonic inflammation in HLA-B27 transgenic rats by feeding Marie Ménard apples, rich in polyphenols

Authors :
Castagnini, C.
Luceri, C.
Toti, S.
Bigagli, E.
Caderni, G.
Femia, A.P.
Giovannelli, L.
Lodovici, M.
Pitozzi, V.
Salvadori, M.
Messerini, L.
Martin, R.
Zoetendal, E.G.
Gaj, S.
Eijssen, L.
Evelo, C.
Renard, C.M.
Baron, A.
Dolara, P.
Castagnini, C.
Luceri, C.
Toti, S.
Bigagli, E.
Caderni, G.
Femia, A.P.
Giovannelli, L.
Lodovici, M.
Pitozzi, V.
Salvadori, M.
Messerini, L.
Martin, R.
Zoetendal, E.G.
Gaj, S.
Eijssen, L.
Evelo, C.
Renard, C.M.
Baron, A.
Dolara, P.
Source :
ISSN: 0007-1145
Publication Year :
2009

Abstract

Inflammatory bowel diseases (IBD) are immunomediated ailments affecting millions of individuals. Although diet is regarded as an important factor influencing IBD, there are no accepted dietary recommendations presently available. We administered 7.6 % lyophilised apples obtained from two cultivars (Golden Delicious and Marie Ménard, low and high in polyphenols, respectively) to HLA-B27 transgenic rats which develop spontaneous IBD. After 3 months feeding, rats fed Marie Ménard apples had reduced myeloperoxidase activity (3.6 (sem 0.3) v. 2.2 (sem 0.2) U/g tissue; P <0.05) and reduced cyclo-oxygenase-2 (P <0.05) and inducible NO synthase gene expression (P <0.01) in the colon mucosa and significantly less diarrhoea (P <0.05), compared with control rats. Cell proliferation in the colon mucosa was reduced significantly by feeding Golden Delicious apples, with a borderline effect of Marie Ménard apples. Gene expression profiling of the colon mucosa, analysed using the Whole Rat Genome 4 x 44 K Agilent Arrays, revealed a down-regulation of the pathways of PG synthesis, mitogen-activated protein kinase (MAPK) signalling and TNFalpha-NF-kappaB in Marie Ménard-fed rats. In the stools of the animals of this group we also measured a significant reduction of bacteria of the Bacteriodes fragilis group. In conclusion, the administration of Marie Ménard apples, rich in polyphenols and used at present only in the manufacturing of cider, ameliorates colon inflammation in transgenic rats developing spontaneous intestinal inflammation, suggesting the possible use of these and other apple varieties to control inflammation in IBD patients

Details

Database :
OAIster
Journal :
ISSN: 0007-1145
Notes :
application/pdf, British Journal of Nutrition 102 (2009) 11, ISSN: 0007-1145, ISSN: 0007-1145, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1200338433
Document Type :
Electronic Resource