Evidence map›Paper›PMID 26038762›Full record

ArticleEmerging microbes & infections2015

Identification of specific metabolites in culture supernatant of Mycobacterium tuberculosis using metabolomics: exploration of potential biomarkers.

Susanna K P Lau, Ching-Wan Lam, Shirly O T Curreem, Kim-Chung Lee, Candy C Y Lau, Wang-Ngai Chow, Antonio H Y Ngan, Kelvin K W To, Jasper F W Chan, Ivan F N Hung and 3 more

Open access · goldAbstract read
In one paragraph

Article in Emerging microbes & infections, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.1field-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

35 citing papers in PubMed, 68 citations in OpenAlex.

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  18. Detection of Mycobacterium kansasii using a combination of loop-mediated isothermal amplification (LAMP) and lateral flow biosensors.International microbiology : the official journal of the Spanish Society for Microbiology · 2021
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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

13 authors at 1 institution in 1 country.

Susanna K P LauState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
Ching-Wan LamDepartment of Pathology, The University of Hong Kong , Hong Kong, China.
Shirly O T CurreemDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Kim-Chung LeeDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Candy C Y LauDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Wang-Ngai ChowDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Antonio H Y NganDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Kelvin K W ToState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
Jasper F W ChanState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
Ivan F N HungState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
Wing-Cheong YamDepartment of Microbiology, The University of Hong Kong , Hong Kong, China.
Kwok-Yung YuenState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
Patrick C Y WooState Key Laboratory of Emerging Infectious Diseases , Hong Kong, China ; Research Centre of Infection and Immunology, The University of Hong Kong , Hong Kong, China ; Carol Yu Centre for Infection, The University of Hong Kong , Hong Kong, China ; Department of Microbiology, The University of Hong Kong , Hong Kong, China.
University of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although previous studies have reported the use of metabolomics for Mycobacterium species differentiation, little is known about the potential of extracellular metabolites of Mycobacterium tuberculosis (MTB) as specific biomarkers. Using an optimized ultrahigh performance liquid chromatography-electrospray ionization-quadruple time of flight-mass spectrometry (UHPLC-ESI-Q-TOF-MS) platform, we characterized the extracellular metabolomes of culture supernatant of nine MTB strains and nine non-tuberculous Mycobacterium (NTM) strains (four M. avium complex, one M. bovis Bacillus Calmette-Guérin (BCG), one M. chelonae, one M. fortuitum and two M. kansasii). Principal component analysis readily distinguished the metabolomes between MTB and NTM. Using multivariate and univariate analysis, 24 metabolites with significantly higher levels in MTB were identified. While seven metabolites were identified by tandem mass spectrometry (MS/MS), the other 17 metabolites were unidentified by MS/MS against database matching, suggesting that they may be potentially novel compounds. One metabolite was identified as dexpanthenol, the alcohol analog of pantothenic acid (vitamin B5), which was not known to be produced by bacteria previously. Four metabolites were identified as 1-tuberculosinyladenosine (1-TbAd), a product of the virulence-associated enzyme Rv3378c, and three previously undescribed derivatives of 1-TbAd. Two derivatives differ from 1-TbAd by the ribose group of the nucleoside while the other likely differs by the base. The remaining two metabolites were identified as a tetrapeptide, Val-His-Glu-His, and a monoacylglycerophosphoglycerol, phosphatidylglycerol (PG) (16∶0/0∶0), respectively. Further studies on the chemical structure and biosynthetic pathway of these MTB-specific metabolites would help understand their biological functions. Studies on clinical samples from tuberculosis patients are required to explore for their potential role as diagnostic biomarkers.

Indexed as

MetabolomicsBiomarkersChromatography, High Pressure LiquidHumansLipidsMycobacterium tuberculosisNontuberculous MycobacteriaPantothenic AcidSpectrometry, Mass, Electrospray IonizationTandem Mass Spectrometry1-tuberculosinyladenosineBiomarkersdexpanthenolLipidsPantothenic AcidbiomarkersdiagnosismetabolomicsMycobacterium tuberculosisspecific

Identifiers

PMID26038762
PMCPMC4317673
OpenAlexW1989696958

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.