Evidence map›Paper›PMID 35476806›Full record

ArticlePloS one2022

Effects of oral glutamine supplementation on jejunal morphology, development, and amino acid profiles in male low birth weight suckling piglets.

Johannes Schregel, Johannes Schulze Holthausen, Miriama Sciascia, Zeyang Li, Solvig Görs, Anja Eggert, Armin Tuchscherer, Jürgen Zentek, Cornelia C Metges

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 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

9 authors at 3 institutions in 1 country.

Johannes SchregelResearch Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, Dummerstorf, Germany.
Johannes Schulze HolthausenFreie Universität Berlin, Department of Veterinary Medicine, Institute of Animal Nutrition, Berlin, Germany.ORCID 0000-0002-8675-9258
Miriama SciasciaResearch Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, Dummerstorf, Germany.
Zeyang LiResearch Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, Dummerstorf, Germany.
Solvig GörsResearch Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, Dummerstorf, Germany.
Anja EggertResearch Institute for Farm Animal Biology (FBN), Institute for Genetic and Biometry, Dummerstorf, Germany.
Armin TuchschererResearch Institute for Farm Animal Biology (FBN), Institute for Genetic and Biometry, Dummerstorf, Germany.
Jürgen ZentekFreie Universität Berlin, Department of Veterinary Medicine, Institute of Animal Nutrition, Berlin, Germany.
Cornelia C MetgesResearch Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, Dummerstorf, Germany.ORCID 0000-0002-9498-6020
Research Institute for Farm Animal Biology (FBN) · DEFreie Universität Berlin · DEZimmer Biomet (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt has been shown that small intestine development in low birth weight (LBW) piglets is impaired. Glutamine (Gln) has been reported to improve piglet health and intestinal function in weaned piglets, but data is scarce in suckling piglets. This study was conducted to investigate the effects of oral Gln supplementation compared to Alanine (Ala) on jejunal development and function in 5 and 12 d old male LBW and normal birth weight (NBW) suckling piglets.

resultsGln had no effect on the jejunal morphology, development, tissue and digesta amino acid profiles and mRNA abundance of genes involved in amino acid transport, metabolism, glutathione synthesis in LBW piglets when compared to Ala supplementation and birth weight controls at 5 and 12 d. Only the concentration of Gln in jejunal tissue was higher in NBW piglets supplemented with Gln compared to Ala at 5 d (P < 0.05). A comparison of the birth weight groups showed no differences between LBW and NBW piglets at 5 and 12 d in any parameter. Jejunal crypt depth, villus height / width, tunica muscularis thickness, number of goblet and IgA positive cells, the ratio of jejunal RNA to DNA and the concentration of DNA, protein and RNA changed (P < 0.05) from 5 compared to 12 d. The concentrations of several free, and protein bound amino acids as well as amino metabolites differed between age groups in jejunal tissue but the digesta concentrations were affected to a lesser extent.

conclusionsOral Gln supplementation to suckling male piglets over the first 12 d of life was not associated with changes in jejunal parameters measured in this study. The absence of effects may indicate that Gln is absorbed as well as metabolized in the upper intestinal tract and thus could benefit intestinal development at a more proximal location.

Indexed as

Amino AcidsGlutamineAnimalsBirth WeightDietary SupplementsHumansInfant, Low Birth WeightInfant, NewbornMaleRNA, MessengerSwineAmino AcidsGlutamineRNA, Messenger

Identifiers

PMID35476806
PMCPMC9045636
OpenAlexW4226181463

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.