The Role of Staphylococcus aureus in Patients with Chronic Sinusitis and Nasal Polyposis

AbstractPurpose of ReviewStaphylococcus aureus (S. aureus) is correlated with the development of persistent severe inflammatory disease of the upper airway including chronic rhinosinusitis with nasal polyps (CRSwNP). The presence ofS. aureus is associated with atopic disease including allergic rhinitis and atopic dermatitis and is associated with poor outcomes.Recent FindingsSeveral different strains ofS. aureus generate different toxins and gene products that can account for organism pathogenicity.S. aureus bacteria and its antigens shape the bacterial and fungal microbiome and the mucosal niche which generates host responses that can account for inflammation. The multiple disease phenotypes and molecular endotypes seen in CRSwNP can be characterized by T-helper cell environment within the inflammatory milieu, the presence of epithelial barrier dysfunction, aberrant eicosanoid metabolism, poor wound healing, and dysfunctional host-bacteria interactions which lead to recalcitrant disease and worse surgical outcomes.SummaryUnderstanding the pathomechanisms thatS. aureus utilizes to promote nasal polyp formation, prolonged tissue inflammation, and bacterial dysbiosis are essential in our efforts to identify new therapeutic approaches to resolve this chronic inflammatory process.
Source: Current Allergy and Asthma Reports - Category: Allergy & Immunology Source Type: research

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Boosting the sensitivity of in vitroβ-lactam allergy diagnostic tests. Chem Commun (Camb). 2020 Oct 14;56(80):11973-11976 Authors: Peña-Mendizabal E, Morais S, Maquieira Á Abstract The synthesis of structurally new haptens and the development of suitable antigens are essential for boosting the sensitivity of drug allergy diagnostic testing. Unprecedented structural antigens for benzylpenicillin and amoxicillin are characterised and evaluated in a cohort of 70 subjects with a turnkey solution based on consumer electronics. PMID: 33033809 [PubMed - in process]
Source: Chemical Communications - Category: Chemistry Authors: Tags: Chem Commun (Camb) Source Type: research
Publication date: October 2020Source: Brain, Behavior, and Immunity, Volume 89Author(s): Xiaoqin Liu, Trine Munk-Olsen, Clara Albiñana, Bjarni J. Vilhjálmsson, Emil M. Pedersen, Vivi Schlünssen, Marie Bækvad-Hansen, Jonas Bybjerg-Grauholm, Merete Nordentoft, Anders D. Børglum, Thomas Werge, David M. Hougaard, Preben B. Mortensen, Esben Agerbo
Source: Brain, Behavior, and Immunity - Category: Neurology Source Type: research
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Source: European Archives of Oto-Rhino-Laryngology - Category: ENT & OMF Source Type: research
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Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
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Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
This study investigated antibacterial-producing Streptomyces isolated from the gut of estuarine fish Chanos chanos, emphasizing screening for the producer of peptide-containing antibacterial compounds. Eighteen isolates were found during preliminary screening, in which four isolates showed the best antibacterial activities. Based on the morphological, physiological, and biochemical characterization, as well as 16S rRNA partial sequencing, all of the four isolates belonged to Streptomyces. Three isolates were suspected as novel isolate candidates based on homology presentations and phylogenetic tree analysis. Disk-diffusion...
Source: International Journal of Microbiology - Category: Microbiology Tags: Int J Microbiol Source Type: research
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Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
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Source: Professional Case Management - Category: Health Management Tags: Articles Source Type: research
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Source: Puerto Rico Health Sciences Journal - Category: International Medicine & Public Health Tags: P R Health Sci J Source Type: research
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Source: Puerto Rico Health Sciences Journal - Category: International Medicine & Public Health Tags: P R Health Sci J Source Type: research
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