Evidence map›Paper›PMID 34517895›Full record

ReviewGut pathogens2021

The use of biomarkers associated with leaky gut as a diagnostic tool for early intervention in autism spectrum disorder: a systematic review.

Laila Al-Ayadhi, Naima Zayed, Ramesa Shafi Bhat, Nadine M S Moubayed, May N Al-Muammar, Afaf El-Ansary

Open access · goldAbstract readReview
In one paragraph

Review in Gut pathogens, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 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

6 authors at 2 institutions in 2 countries.

Laila Al-AyadhiDepartment of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.
Naima ZayedTherapuetic Chemistry Department, National Research Centre, Dokki, Cairo, Egypt.
Ramesa Shafi BhatBiochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia.
Nadine M S MoubayedBotany and Microbiology Department, College of Science, Female Campus, King Saud University, Riyadh, Saudi Arabia.
May N Al-MuammarDepartment of Community Health, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Afaf El-AnsaryCentral Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, P.O box 22452, Zip code 11495, Riyadh, Saudi Arabia. elansary@Ksu.edu.sa.ORCID http://orcid.org/0000-0003-4234-4488
King Saud University · SANational Research Centre · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInnovative research highlighted the probable connection between autism spectrum disorder (ASD) and gut microbiota as many autistic individuals have gastrointestinal problems as co-morbidities. This review emphasizes the role of altered gut microbiota observed frequently in autistic patients, and the mechanisms through which such alterations may trigger leaky gut. MAIN BODY: Different bacterial metabolite levels in the blood and urine of autistic children, such as short-chain fatty acids, lipopolysaccharides, beta-cresol, and bacterial toxins, were reviewed. Moreover, the importance of selected proteins, among which are calprotectin, zonulin, and lysozyme, were discussed as biomarkers for the early detection of leaky gut as an etiological mechanism of ASD through the less integrative gut-blood-brain barriers. Disrupted gut-blood-brain barriers can explain the leakage of bacterial metabolites in these patients.

conclusionAlthough the cause-to-effect relationship between ASD and altered gut microbiota is not yet well understood, this review shows that with the consumption of specific diets, definite probiotics may represent a noninvasive tool to reestablish healthy gut microbiota and stimulate gut health. The diagnostic and therapeutic value of intestinal proteins and bacterial-derived compounds as new possible biomarkers, as well as potential therapeutic targets, are discussed.

Indexed as

AutismDietGut microbiotaLeaky gutProbioticsShort-chain fatty acidsZonulin

Identifiers

PMID34517895
PMCPMC8439029
OpenAlexW3199610332

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.