Evidence map›Paper›PMID 27234592›Full record

ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2016

Effects of vancomycin versus nafcillin in enhancing killing of methicillin-susceptible Staphylococcus aureus causing bacteremia by human cathelicidin LL-37.

J Le, Q Dam, M Schweizer, W Thienphrapa, V Nizet, G Sakoulas

Abstract read
In one paragraph

Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 10 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 3 institutions in 1 country.

J LeSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, MC 0714, La Jolla, CA, 92093-0714, USA. jenle@ucsd.edu.
Q DamUniversity of California San Diego School of Medicine, La Jolla, CA, USA.
M SchweizerIowa City VA Health Care System, Iowa City, IA, USA.
W ThienphrapaUniversity of California San Diego School of Medicine, La Jolla, CA, USA.
V NizetSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, MC 0714, La Jolla, CA, 92093-0714, USA.
G SakoulasUniversity of California San Diego School of Medicine, La Jolla, CA, USA.
University of California, San Diego · USUniversity of Montana · USUniversity of Iowa · US

Funding

Vaccines and Therapies Against BotulismU54AI057153 · NIAID · UNIVERSITY OF CHICAGO · PI MISSIAKAS, DOMINIQUE M. · 2003 to 2013
$87.6M
Cathelicidin in Skin ImmunityR37AI052453 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Richard L Gallo, Victor Nizet · 2019 to 2026
$4.6M
TRAINING & OUTREACH COREU54HD071600 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BEST, BROOKIE MANNING · 2011 to 2015
$3.6M
Safety and Dose Optimization of High-Dose Anakinra in Kawasaki DiseaseU54HD090259 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CAPPARELLI, EDMUND VINCENT, NIZET, VICTOR · 2016 to 2018
$2.2M
Safety and Dose Optimization of High-Dose Anakinra in Kawasaki DiseaseP50HD090259 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TREMOULET, ADRIANA H · 2019 to 2020
$1.4M
Pharmacokinetic-Pharmacodynamics of Antimicrobials in Resistant InfectionsK23AI089978 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI LE, JENNIFER · 2010 to 2014
$641k
NIAID NIH HHS K23 AI089978NIAID NIH HHS R37 AI052453NIAID NIH HHS U54 AI057153NICHD NIH HHS P50 HD090259NICHD NIH HHS U54 HD071600
6 · The paper itself

Abstract

Recent studies have demonstrated that anti-staphylococcal beta-lactam antibiotics, like nafcillin, render methicillin-resistant Staphylococcus aureus (MRSA) more susceptible to killing by innate host defense peptides (HDPs), such as cathelicidin LL-37. We compared the effects of growth in 1/4 minimum inhibitory concentration (MIC) of nafcillin or vancomycin on the LL-37 killing of 92 methicillin-susceptible S. aureus (MSSA) isolates. For three randomly selected strains among these, we examined the effects of nafcillin, vancomycin, daptomycin, or linezolid on LL-37 killing and autolysis. Growth in the presence of subinhibitory nafcillin significantly enhanced LL-37 killing of MSSA compared to vancomycin and antibiotic-free controls. Nafcillin also reduced MSSA production of the golden staphylococcal pigment staphyloxanthin in 39 % of pigmented strains vs. 14 % for vancomycin. Among the antibiotics tested, only nafcillin resulted in significantly increased MSSA autolysis. These studies point to additional mechanisms of anti-staphylococcal activity of nafcillin beyond direct bactericidal activity, properties that vancomycin and other antibiotic classes do not exhibit. The ability of nafcillin to enhance sensitivity to innate HDPs may contribute to its superior effectiveness against MSSA, as suggested by studies comparing clinical outcomes to vancomycin treatment.

Indexed as

Anti-Bacterial AgentsAntimicrobial Cationic PeptidesBacteremiaBacteriolysisCathelicidinsDrug InteractionsHumansMicrobial Sensitivity TestsMicrobial ViabilityNafcillinStaphylococcal InfectionsStaphylococcus aureusVancomycinAnti-Bacterial AgentsAntimicrobial Cationic PeptidesCathelicidinsNafcillinVancomycin

Identifiers

PMID27234592
PMCPMC4983239
OpenAlexW2397587668

What OpenQuestion holds

Textmetadata
LicenceTDM
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.