Evidence map›Paper›PMID 38512524›Full record

ArticleInternational microbiology : the official journal of the Spanish Society for Microbiology2024

Volatile biomarkers of Gram-positive bacteria of clinical relevance as a tool for infection diagnosis.

Ricardo Rubio-Sánchez, Esperanza Lepe-Balsalobre, Cristina Ubeda, José Antonio Lepe-Jiménez

Open access · hybridAbstract read
In one paragraph

Article in International microbiology : the official journal of the Spanish Society for Microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

0 citing papers in PubMed, 5 citations in OpenAlex.

No citing paper in PubMed yet.

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

4 authors at 4 institutions in 1 country.

Ricardo Rubio-SánchezServicio de Análisis Clínicos, Hospital Universitario de Jerez de la Frontera, Cádiz, Spain.
Esperanza Lepe-BalsalobreServicio de Análisis Clínicos, Hospital de Riotinto, Huelva, Spain.
Cristina UbedaDepartamento de Nutrición y Bromatología, Toxicología y Medicina Legal, Facultad de Farmacia, Universidad de Sevilla, C/ Profesor García González, 2, 41012, Seville, Spain. c_ubeda@us.es.
José Antonio Lepe-JiménezClinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBIS), University of Seville/CSIC/University Hospital Virgen del Rocío, Seville, Spain.
Hospital Jerez Puerta del Sur · ESHospital Riotinto · ESInstituto de Biomedicina de Sevilla · ESUniversidad de Sevilla · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimVolatile organic compounds (VOCs) are being studied as potential biomarkers in many infections. Therefore, this study aimed to analyze the volatile profile of three Gram-positive bacteria of clinical relevance to identify potential volatile biomarkers that allow their differentiation. METHODS AND

resultsL. monocytogenes, S. aureus, and E. faecalis clinical isolates were inoculated in a thioglycollate medium until grown. Then, VOCs were extracted by solid-phase microextraction, and the data obtained were subjected to multivariate analysis. According to our results, there was a high production of aldehydes in E. faecalis. In the case of alcohols, they only increased in L. monocytogenes, while ketones were produced significantly in all three bacteria, mainly due to acetoin. Acids were produced significantly in E. faecalis and L. monocytogenes.

conclusionsPotential biomarkers of L. monocytogenes could be 1-butanol and 2-methylbutanoic acid. In the case of E. faecalis, the VOC most related to its presence was nonanal. Lastly, potential biomarkers of S. aureus could be isoamyl butanoate and methionol, although some pyrazines have also been associated with this bacterium. SIGNIFICANCE AND IMPACT OF THE STUDY: The identification of potential biomarkers of these clinically relevant bacteria could open the way for the diagnosis of these infections through the analysis of volatile compounds.

Indexed as

BiomarkersListeria monocytogenesStaphylococcus aureusVolatile Organic CompoundsAldehydesClinical RelevanceEnterococcus faecalisGram-Positive BacteriaGram-Positive Bacterial InfectionsHemiterpenesHumansPentanoic AcidsSolid Phase MicroextractionAldehydesBiomarkersHemiterpenesisovaleric acidPentanoic AcidsVolatile Organic CompoundsBiomarkersEnterococcus faecalisListeria monocytogenesStaphylococcus aureusVOC

Identifiers

PMID38512524
PMCPMC11611999
OpenAlexW4393041553

What OpenQuestion holds

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LicenceCC BY
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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.