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Vibrio cholerae InV117, a class 1 integron harboring aac(6′)-Ib and blaCTX-M-2, is linked to transposition genes
(American Society for Microbiology, 2006-05)
A ca. 150-kbp Vibrio cholerae O1 biotype El Tor plasmid includes bla CTX-M-2 and a variant of aac(6′)-Ib within InV117, an orf513-bearing class 1 integron. InV117 is linked to a tnp1696 module in which IR1 carries an ...
Prior stress promotes the generalization of contextual fear memories: Involvement of the gabaergic signaling within the basolateral amygdala complex
(Pergamon-Elsevier Science Ltd, 2018-04)
Fear generalization occurs when a response, previously acquired with a threatening stimulus, is transferred to a similar one. However, it could be maladaptive when stimuli that do not represent a real threat are appraised ...
Previous stress exposure enhances both anxiety-like behaviour and p35 levels in the basolateral amygdala complex: Modulation by midazolam
(Elsevier Science, 2010-06)
Stress exposure induces long lasting neurobiological changes in selected brain areas, which could be associated with the emergence of negative emotional responses. In the present study, previously restrained animals exhibited ...
A novel retrieval-dependent memory process revealed by the arrest of ERK1/2 activation in the basolateral amygdala
(Society for Neuroscience, 2018-03)
Fully consolidated fear memories can be maintained or inhibited by retrieval-dependent mechanisms depending on the degree of re-exposure to fear cues. Short exposures promote memory maintenance through reconsolidation, and ...
GABAergic signaling within the basolateral amygdala complex modulates resistance to the labilization/reconsolidation process
(Academic Press Inc Elsevier Science, 2017-10)
It is well known that stress can affect mnemonic processes. In particular, stress before contextual fear conditioning induces a memory which exhibits resistance to being interfered with by Midazolam (MDZ) when applied after ...
Emergence of colistin resistance in Klebsiella pneumoniae ST15 disseminating blaKPC-2 in a novel genetic platform
(Elsevier, 2021-06)
Objectives: Isolation of colistin- and carbapenem-resistant Klebsiella pneumoniae (CCR-Kp) is increasing in hospital settings worldwide, which is related to increased morbidity, mortality and healthcare costs. The aim of ...
Comparison of phenotypic tests for detecting penicillin G resistance with presence of blaZ gene in Staphylococcus aureus isolated from bovine intramammary infections
(2015-08)
Few studies have described the relationship between genotypic and phenotypic methods for detecting penicillin resistance in Staphylococcus aureus isolated from bovine intramammary infection (IMI). Six phenotypic methods ...
Multiple clones of metallo-β-lactamase-producing Acinetobacter ursingii in a children hospital from Argentina
(Elsevier Science, 2019-01)
Acinetobacter spp. are opportunistic pathogens being A. baumannii the most frequently identified in nosocomial settings. A. ursingii was mainly described as causing bacteremia and outbreaks in neonatal intensive care units. ...
Co-occurrence of clinically relevant β-lactamases and MCR-1 encoding genes in Escherichia coli from companion animals in Argentina
(Elsevier Science, 2019-03)
Extended-spectrum β-lactamase (ESBL), plasmid-mediated AmpC (pAmpC) and MCR-1 phosphoethanolamine transferase enzymes have been pointed out as the main plasmid-mediated mechanisms of resistance to third generation ...
Can ceftazidime-avibactam and aztreonam overcome β-lactam resistance conferred by metallo-β-lactamases in Enterobacteriaceae?
(American Society for Microbiology, 2017-04)
Based upon knowledge of the hydrolytic profile of major β-lactamases found in Gram-negative bacteria, we tested the efficacy of the combination of ceftazidime-avibactam (CAZ-AVI) with aztreonam (ATM) against carbapenem-resistant ...