Evidence map›Paper›PMID 27289540›Full record

ArticleEuropean journal of nutrition2017

Amino acid changes during transition to a vegan diet supplemented with fish in healthy humans.

Amany Elshorbagy, Fredrik Jernerén, Marianne Basta, Caroline Basta, Cheryl Turner, Maram Khaled, Helga Refsum

Open access · hybridAbstract read
In one paragraph

Article in European journal of nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

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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

7 authors at 2 institutions in 3 countries.

Amany ElshorbagyDepartment of Physiology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt. amany.elshorbagy@alexmed.edu.eg.
Fredrik JernerénDepartment of Pharmacology, University of Oxford, Oxford, UK.
Marianne BastaDepartment of Physiology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt.
Caroline BastaDepartment of Physiology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt.
Cheryl TurnerDepartment of Pharmacology, University of Oxford, Oxford, UK.
Maram KhaledPain Management Unit, Department of Anaesthesia, Medical Research Institute, University of Alexandria, Alexandria, Egypt.
Helga RefsumDepartment of Pharmacology, University of Oxford, Oxford, UK.
Alexandria University · EGUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore whether changes in dietary protein sources can lower plasma branched-chain amino acids (BCAAs), aromatic amino acids and sulfur amino acids (SAAs) that are often elevated in the obese, insulin-resistant state and in type 2 diabetes.

methodsThirty-six subjects (mean age 31 ± 2 years) underwent a voluntary abstinence from meat, poultry, eggs, and dairy products for 6 weeks, while enriching the diet with fish, in fulfillment of a religious fast. Subjects were assessed 1 week before the fast (V1), 1 week after initiation of the fast (V2) and in the last week of the fast (V3). Thirty-four subjects completed all three visits.

resultsFasting plasma BCAAs decreased at V2 and remained low at V3 (P < 0.001 for all). Valine showed the greatest decline, by 20 and 19 % at V2 and V3, respectively. Phenylalanine and tryptophan, but not tyrosine, also decreased at V2 and V3. The two proteinogenic SAAs, methionine and cysteine, remained stable, but the cysteine product, taurine, decreased from 92 ± 7 μmol/L to 66 ± 6 (V2; P = 0.003) and 65 ± 6 μmol/L (V3; P = 0.003). A progressive decline in plasma glutamic acid, coupled with an increase in glutamine, was observed. Plasma total and LDL cholesterol decreased at V2 and V3 (P < 0.001 for all).

conclusionChanging dietary protein sources to plant- and fish-based sources in an ad libitum setting lowers the plasma BCAAs that have been linked to diabetes risk. These findings point to habitual diet as a potentially modifiable determinant of fasting plasma BCAA concentrations.

Indexed as

DietSeafoodAdultAmino AcidsAnimalsBlood GlucoseBody CompositionCholesterolDiabetes Mellitus, Type 2Dietary ProteinsEgyptFemaleFishesGlutamineHumansInsulinAmino AcidsBlood GlucoseCholesterolDietary ProteinsGlutamineInsulinTriglyceridesBody mass indexBranched-chain amino acidsEgyptian Orthodox ChristiansLean massMass spectrometrySulfur amino acids

Identifiers

PMID27289540
PMCPMC5534203
OpenAlexW2416238689

What OpenQuestion holds

Textmetadata
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.