Evidence map›Paper›PMID 29865269›Full record

ArticleNutrients2018

Modulation of Free Amino Acid Profile in Healthy Humans Administered with Mastiha Terpenes. An Open-Label Trial.

Efstathia Papada, Ljilja Torović, Charalampia Amerikanou, Nikolaos Kalogeropoulos, Ilias Smyrnioudis, Andriana C Kaliora

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 37% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Trial
  2. The effects of terpenes on metabolism: a comprehensive review on recent updates.Current opinion in clinical nutrition and metabolic care · 2025
    Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Efstathia PapadaLaboratory of Chemistry-Biochemistry and Physical Chemistry of Foods, Department of Dietetics and Nutritional Science, School of Health Science and Education, Harokopio University Athens, 17671 Athens, Greece. efpapada@gmail.com.
Ljilja TorovićDepartment of Pharmacy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia. ljilja.torovic@izjzv.org.rs.
Charalampia AmerikanouLaboratory of Chemistry-Biochemistry and Physical Chemistry of Foods, Department of Dietetics and Nutritional Science, School of Health Science and Education, Harokopio University Athens, 17671 Athens, Greece. amerikanou@windowslive.com.
Nikolaos KalogeropoulosLaboratory of Chemistry-Biochemistry and Physical Chemistry of Foods, Department of Dietetics and Nutritional Science, School of Health Science and Education, Harokopio University Athens, 17671 Athens, Greece. nickal@hua.gr.
Ilias SmyrnioudisChios Mastic Gum Growers Association, 1 K. Monomachou St., 82100 Chios, Greece. ismyrnioudis@gummastic.gr.
Andriana C KalioraLaboratory of Chemistry-Biochemistry and Physical Chemistry of Foods, Department of Dietetics and Nutritional Science, School of Health Science and Education, Harokopio University Athens, 17671 Athens, Greece. akaliora@hua.gr.
Harokopio University of Athens · GRChios Mastiha Growers Association · GRUniversity of Novi Sad · RS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We aimed to explore whether plasma-free amino acids are modified in response to terpenes administration in healthy humans. In this open-label, single-arm acute trial, seventeen healthy male volunteers were administered with a naturally occurring product of known terpenes-namely mastiha-after overnight fasting. Blood samples were collected at different time points before and after ingestion. We aimed at identifying and quantifying 60 free amino acids in plasma applying Gas Chromatography-Mass Spectrometry. A total of 24 free amino acids were quantified. Branched-chain valine significantly decreased 4 h post-ingestion, whereas proline decreased at 6 h and ornithine at 2 h, compared to 0 h. These novel findings demonstrate that free amino acids levels are modulated in response to terpenes intake in healthy subjects.

Indexed as

Amino AcidsGas Chromatography-Mass SpectrometryHealthy VolunteersHumansMaleOrnithinePlant ExtractsProlineTerpenesTime FactorsValineAmino AcidsOrnithinePlant ExtractsProlineTerpenesValineGC-MS metabolic analysisplasma-free amino acidsterpenesuric acid

Identifiers

PMID29865269
PMCPMC6024789
OpenAlexW2805772390

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.