Biofilm-specific antibiotic resistance is influenced by multiple factors. We demonstrated that Pseudomonas aeruginosa tssC1, a gene implicated in type VI secretion (T6S), is important for resistance of biofilms to a subset of antibiotics. We showed that tssC1 expression is induced in biofilms and confirmed that tssC1 is required for T6S.
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http://dx.doi.org/10.1128/JB.00268-11 | DOI Listing |
Curr Microbiol
January 2025
Department of Microbiology and Botany, School of Sciences, J. C. Road, JAIN (Deemed-to-be University), Bangalore, Karnataka, 560027, India.
Endophytic fungi are non-pathogenic organisms that colonise healthy plant tissues asymptomatically. Endophytes derived from medicinal plants are sources for identifying natural products and bioactive compounds with potential uses for industry, medicine, agriculture, and related sectors. In the present study, ethyl acetate crude extracts of four endophytic fungal isolates (CALF1, CALF4, and CASF1) from the medicinal plant Plectranthus amboinicus showed potent antimicrobial activity against the test pathogenic bacteria Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtilis using disc diffusion assays.
View Article and Find Full Text PDFPediatr Pulmonol
January 2025
IRCCS Istituto Giannina Gaslini, Cystic Fibrosis Center, Genoa, Italy.
Background: Notwithstanding guidance from the European Cystic Fibrosis (CF) Society (ECFS) neonatal screening (NBS) working group, significant variation persists in the evaluation and management of Cystic Fibrosis Screen Positive, Inconclusive Diagnosis (CFSPID) subjects, leaving many aspects of care under debate. This study reports the results of a national survey investigating management and treatment approaches of pre-school CFSPIDs in Italy.
Methods: In February 2024, a comprehensive questionnaire was distributed to all Italian CF centers.
J Mater Chem B
January 2025
Department of Chemistry, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India.
We investigated the and uses of pamoic acid functionalized gold nanoparticles (PA@AuNPs), with a focus on determining their safety and potential toxicity in living beings. To test this theory, the bacterial interaction of PA@AuNPs was studied using , , and cultures, as well as the inhibition of the bovine serum albumin (BSA) protein. The real-time polymerase chain reaction (RT-PCR) is used to measure the expression of target genes.
View Article and Find Full Text PDFJ Antimicrob Chemother
January 2025
Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Objectives: To develop a scoring system to predict resistance to ceftolozane/tazobactam in Pseudomonas aeruginosa strains isolated from respiratory specimens.
Methods: A case-control study was conducted to evaluate the risk factors associated with resistance to ceftolozane/tazobactam. Patients with P.
Int Forum Allergy Rhinol
January 2025
Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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