Metabolomic response to coffee consumption: application to a three-stage clinical trial

I'm sure your doctor can contact someone to decipher exactly what this says and get it written into a stroke protocol. I want to know exactly how much coffee to drink per bodyweight and sex. Is that too much to ask for?
https://www.ncbi.nlm.nih.gov/pubmed/29381822

Cornelis MC¹, Erlund I², Michelotti GA³, Herder C^4,5, Westerhuis JA^6,7, Tuomilehto J^8,9,10,11.

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Abstract

BACKGROUND:

Coffee is widely consumed and contains many bioactive compounds, any of which may impact pathways related to disease development.

OBJECTIVE:

To identify individual metabolite changes in response to coffee.

METHODS:

We profiled the metabolome of fasting serum samples collected from a previously reported single-blinded, three-stage clinical trial. Forty-seven habitual coffee consumers refrained from drinking coffee for 1 month, consumed four cups of coffee/day in the second month and eight cups/day in the third month. Samples collected after each coffee stage were subject to nontargeted metabolomic profiling using UPLC-ESI-MS/MS. A total of 733 metabolites were included for univariate and multivariate analyses.

RESULTS:

A total of 115 metabolites were significantly associated with coffee intake (P < 0.05 and Q < 0.05). Eighty-two were of known identity and mapped to one of 33 predefined biological pathways. We observed a significant enrichment of metabolite members of five pathways (P < 0.05): (i) xanthine metabolism: includes caffeine metabolites, (ii) benzoate metabolism: reflects polyphenol metabolite products of gut microbiota metabolism, (iii) steroid: novel but may reflect phytosterol content of coffee, (iv) fatty acid metabolism (acylcholine): novel link to coffee and (v) endocannabinoid: novel link to coffee.

CONCLUSIONS:

The novel metabolites and candidate pathways we have identified may provide new insight into the mechanisms by which coffee may be exerting its health effects.

© 2018 The Association for the Publication of the Journal of Internal Medicine.

KEYWORDS:

biomarkers; caffeine; coffee; metabolomics; trial

PMID:

29381822

DOI:

10.1111/joim.12737