Evidence map›Paper›PMID 30273348›Full record

ArticlePloS one2018

In vitro activity of N-acetylcysteine against Stenotrophomonas maltophilia and Burkholderia cepacia complex grown in planktonic phase and biofilm.

Simona Pollini, Vincenzo Di Pilato, Giulia Landini, Tiziana Di Maggio, Antonio Cannatelli, Samantha Sottotetti, Lisa Cariani, Stefano Aliberti, Francesco Blasi, Francesco Sergio and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

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  11. Activity ofMicrobiology spectrum · 2022
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  17. Effect ofAntibiotics (Basel, Switzerland) · 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

12 authors at 6 institutions in 1 country.

Simona PolliniDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
Vincenzo Di PilatoDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
Giulia LandiniDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Tiziana Di MaggioDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Antonio CannatelliDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Samantha SottotettiCystic Fibrosis Microbiology Laboratory, IRCCS Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Lisa CarianiCystic Fibrosis Microbiology Laboratory, IRCCS Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Stefano AlibertiDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Francesco BlasiDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.ORCID 0000-0002-2285-9970
Francesco SergioGlobal Respiratory Medical Affairs, Zambon S.p.A., Bresso, Italy.
Gian Maria RossoliniDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
Lucia PallecchiDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.ORCID 0000-0001-7999-5140
University of Siena · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITUniversity of Florence · ITUniversity of Milan · ITAzienda Ospedaliero-Universitaria Careggi · ITZambon (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stenotrophomonas maltophilia and Burkholderia cepacia complex (Bcc) have been increasingly recognized as relevant pathogens in hospitalized, immunocompromised and cystic fibrosis (CF) patients. As a result of complex mechanisms, including biofilm formation and multidrug resistance phenotype, S. maltophilia and Bcc respiratory infections are often refractory to therapy, and have been associated with a worse outcome in CF patients. Here we demonstrate for the first time that N-acetylcysteine (NAC), a mucolytic agent with antioxidant and anti-inflammatory properties, may exhibit antimicrobial and antibiofilm activity against these pathogens. The antimicrobial and antibiofilm activity of high NAC concentrations, potentially achievable by topical administration, was tested against a collection of S. maltophilia (n = 19) and Bcc (n = 19) strains, including strains from CF patients with acquired resistance traits. Minimum Inhibitory Concentrations (MICs) and Minimum Bactericidal Concentrations (MBCs) ranged from 16 to 32 mg/ml and from 32 to >32 mg/ml, respectively. Sub-MIC concentrations (i.e., 0.25 × MIC) slowed down the growth kinetics of most strains. In time-kill assays, 2-day-old biofilms were more affected than planktonic cultures, suggesting a specific antibiofilm activity of NAC against these pathogens. Indeed, a dose- and time-dependent antibiofilm activity of NAC against most of the S. maltophilia and Bcc strains tested was observed, with a sizable antibiofilm activity observed also at 0.5 and 1 × MIC NAC concentrations. Furthermore, at those concentrations, NAC was also shown to significantly inhibit biofilm formation with the great majority of tested strains.

Indexed as

AcetylcysteineBiofilmsBurkholderia cepacia complexCystic FibrosisDose-Response Relationship, DrugDrug Resistance, BacterialHumansIn Vitro TechniquesMicrobial Sensitivity TestsPlanktonStenotrophomonas maltophiliaTime FactorsAcetylcysteine

Identifiers

PMID30273348
PMCPMC6166927
OpenAlexW2894885951

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.