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The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Multi-parametric approach to identify coffee components that regulate mechanisms of gastric acid secretion

Rubach, Malte, Lang, Roman, Seebach, Elisabeth, Somoza, Mark M., Hofmann, Thomas, Somoza, Veronika·2012·Molecular Nutrition & Food Research

Abstract

Scope: Chlorogenic acid (CA), caffeine (CAFF), pyrogallol (PYR), catechol (CAT), βN‐alkanoyl‐hydroxytryptamides (C5HT) and N‐methylpyridinium (N‐MP) were evaluated for their influence on mechanisms of gastric acid secretion as single compounds and in biomimetic mixtures. Methods and results: Compounds were tested in coffee representative concentrations. Human gastric cancer cells (HGT‐1) were used to study the proton secretory activity by Ussing chamber experiments and FACS analysis. For activation of EGFr, Akt1, ERK1/2, ATF‐2 and cAMP levels, we performed pathway screening assays. Time‐dependent expression of related genes were determined by real‐time PCR. Part of the data was used for neural network modeling to identify the most relevant compounds. N‐MP increased the expression of the anti‐secretory somatostatin receptor by 114%, whereas C5HT decreased its expression by 52%. N‐MP down‐regulated the pro‐secretory CHRM3 receptor by 36% and the H+,K+‐ATPase by 36%. CAFF stimulated the secretory activity in the functional assays, whereas N‐MP and CA decreased proton secretion. After applying a pathway analysis, we were able to discriminate between CAFF, CA, CAT, C5HT, PYR and histamine‐activating EGFr signaling and N‐MP‐associated ERK1/2 signaling. Conclusion: By applying a multi‐parametric approach, N‐MP was shown to effectively down‐regulate mechanisms of gastric acid secretion in human parietal gastric cells.

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Research works printed but not linked: 22

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Metadata

Authors
Rubach, M., Lang, R., Seebach, E., Somoza, M. M., Hofmann, T., & Somoza, V.
Affiliations
  • German Research Center for Food Chemistry Freising Germany
  • Chair of Food Chemistry and Molecular and Sensory Science Technische Universität München Freising Germany
  • University of Wisconsin, Department of Food Science Madison WI USA
  • Institute for Inorganic Chemistry University of Vienna Austria
Venue
Molecular Nutrition & Food Research
Publisher
Wiley
Published
2012-02
Volume
56
Issue
2
Pages
325-335
ISSN
  • 1613-4125
  • 1613-4133
Cited by
30
References
3
Language
en
Funders
  • FEI
  • AiF
  • German Ministry of Economics (14042 N)
  • German Academic Exchange Service

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