{rfName}
Ge

Indexed in

License and Use

Icono OpenAccess

Citations

9

Altmetrics

Analysis of institutional authors

González-Bodi SAuthor

Share

September 30, 2022
Publications
>
Article
Sí

Genomic Analysis of Ceftazidime/Avibactam-Resistant GES-Producing Sequence Type 235 Pseudomonas aeruginosa Isolates

Publicated to: Antibiotics. 11 (7): - 2022-07-01 11(7), DOI: 10.3390/antibiotics11070871

Authors:

Recio R; Villa J; González-Bodí S; Brañas P; Orellana MÁ; Mancheño-Losa M; Lora-Tamayo J; Chaves F; Viedma E
[+]

Affiliations

Instituto de Investigación Sanitaria Hospital 12 de Octubre - Author
Instituto de Investigación Sanitaria Hospital 12 de Octubre , Centro de Investigación Biomédica en Red de Enfermedades Infecciosas - Author

Abstract

The emergence of ceftazidime/avibactam (CZA) resistance among Guiana extended-spectrum β-lactamase (GES)-producing Pseudomonas aeruginosa isolates has rarely been described. Herein, we analyze the phenotypic and genomic characterization of CZA resistance in different GES-producing P. aeruginosa isolates that emerged in our institution. A subset of nine CZA-resistant P. aeruginosa isolates was analyzed and compared with thirteen CZA-susceptible isolates by whole-genome sequencing (WGS). All CZA-resistant isolates belonged to the ST235 clone and O11 serotype. A variety of GES enzymes were detected: GES-20 (55.6%, 5/9), GES-5 (22.2%, 2/9), GES-1 (11.1%, 1/9), and GES-7 (11.1%, 1/9). WGS revealed the presence of two mutations within the blaGES-20 gene com-prising two single-nucleotide substitutions, which caused aspartic acid/serine and leucine/premature stop codon amino acid changes at positions 165 (D165S) and 237 (L237X), respectively. No major dif-ferences in the mutational resistome (AmpC, OprD porin, and MexAB-OprM efflux pump-encoding genes) were found among CZA-resistant and CZA-susceptible isolates. None of the mutations that have been previously demonstrated to cause CZA resistance were observed. Different mutations within the blaGES-20 gene were documented in CZA-resistant GES-producing P. aeruginosa isolates belonging to the ST235 clone in our institution. Although further analysis should be performed, according to our results, other resistance mechanisms might be involved in CZA resistance.
[+]

Keywords

Ceftazidime/avibactam resistanceGes β-lactamasesPseudomonas aeruginosaWhole-genome sequencing

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Antibiotics due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position 65/278, thus managing to position itself as a Q1 (Primer Cuartil), in the category Pharmacology & Pharmacy.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-12-21:

  • Scopus: 9
[+]

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-12-21:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 24.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 24 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 5.
  • The number of mentions on the social network X (formerly Twitter): 6 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
[+]