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Polymicrobial interactions influence co-existence and biofilm forming capabilities.
Front Microbiol
November 2024
Division of Infectious Diseases, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA, United States.
The lungs of patients with cystic fibrosis (CF) are vulnerable to persistent polymicrobial colonization by bacterial pathogens including , and the non-tuberculous mycobacterium (NTM) . The polymicrobial milieu within the CF lung impacts individual species fitness, influences biofilm-forming capabilities, pathogenicity, production of virulence factors and even antimicrobial responses, all potentially compromising therapeutic success. Interaction studies among these CF pathogens are very limited, especially studies on the influences of and on co-existence and virulence.
View Article and Find Full Text PDFExploring the link between dietary patterns and gastric adenocarcinoma in Brazil: a mediation analysis.
BMC Med
November 2024
Graduate Program of A.C.Camargo Cancer Center, São Paulo, Brazil.
Article Synopsis
- The study examined the link between dietary patterns and gastric adenocarcinoma (GA) in Brazil, focusing on how certain nutrients affect this relationship.
- Researchers identified two main dietary patterns: "unhealthy dietary pattern" (UDP), which increased GA risk, and "healthy dietary pattern" (HDP), which decreased it.
- The findings revealed that added sugars and sodium intake played significant roles in mediating the effects of these dietary patterns on GA risk, providing insights for future preventive public health strategies.
Low-Field MRI for Dental Imaging in Pediatric Patients With Supernumerary and Ectopic Teeth: A Comparative Study of 0.55 T and Ultra-Low-Dose CT.
Invest Radiol
October 2024
From the Department of Orthodontics and Orofacial Orthopedics, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany (I.W., S.E., L.G.); Imaging Science Institute, University Hospital Erlangen, Erlangen, Germany (H.-P.F., P.A.); Department of Radiology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany (M.S.M., M.Z., M.U., M.K.); and Center for Clinical Studies, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany (A.S.).
Objectives: This study sought to elucidate the diagnostic performance of 0.55 T magnetic resonance imaging (MRI) for pediatric dental imaging, specifically in terms of the image quality (IQ) for detecting ectopic and/or supernumerary teeth, compared with routine ultra-low-dose computed tomography (ULD-CT) of the jaw.
Materials And Methods: A total of 16 pediatric patients (mean age: 12.
High rate of macrolide resistance and closely genetically related complex strains identified among both cystic fibrosis and non-cystic fibrosis patients within two countries.
Microbiol Spectr
October 2024
Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University, Bratislava, Slovakia.
Unlabelled: is an emerging opportunistic pathogen affecting patients with chronic lung diseases, primarily cystic fibrosis (CF), or those under immunosuppression. Hence, investigations into the epidemiology and transmission of and accurate antibiotic susceptibility data are essential for the effective treatment of infections caused by this pathogen. This retrospective nationwide study included all clinical isolates ( = 59) from 29 patients diagnosed in the Czech Republic and Slovakia between 2018 and 2023.
View Article and Find Full Text PDFkills in a polyphosphate-dependent manner.
mSphere
October 2024
School of Biological Sciences, Illinois State University, Microbiology, Normal, Illinois, USA.
Due to their frequent coexistence in many polymicrobial infections, including in patients with cystic fibrosis or burn/chronic wounds, many studies have investigated the mechanistic details of the interaction between the opportunistic pathogens and rapidly outcompetes under cocultivation conditions which is mediated by several of 's virulence factors. Here, we report that polyphosphate (polyP), an efficient stress defense system and virulence factor in , plays a role in the pathogen's ability to inhibit and kill in a contact-independent manner. We show that cells characterized by low polyP levels are less detrimental to growth and survival while the Gram-positive pathogen is significantly more compromised by the presence of cells that produce high levels of polyP.
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