Results 111 to 120 of about 454,694 (265)

Structural and Functional Siderophore Remodeling by Enzymatic Delipidation

Angewandte Chemie, EarlyView.
A surprising functional switch in bacterial siderophores was discovered through genome mining and the analysis of environmental and pathogenic Pandoraea species. Pandorachelin B, a lipocyclopeptide that promotes swarming motility, is cleaved by a specialized acylase, yielding a ring‐contracted, homodetic cyclopeptide, pandorachelin A, which exhibits ...
Elena Herzog, Keishi Ishida, Evelyn M. Molloy, Ron Hermenau, Kirstin Scherlach, Christian Hertweck   +5 more
wiley   +2 more sources

Interspecies Biofilm Dynamics Among Staphylococci: Inflammatory Contributions to Chronic Rhinosinusitis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Introduction Staphylococcus species are frequently isolated from the sinonasal niche of chronic rhinosinusitis (CRS) patients. While Staphylococcus aureus is often associated with recalcitrant CRS, Staphylococcus epidermidis and Staphylococcus lugdunensis are largely deemed commensal.
Sintayehu Ambachew, Mahnaz Ramezanpour, Clare M. Cooksley, Sholeh Feizi, Muhammed Awad, Kevin Aaron Fenix, Peter‐John Wormald, Alkis J. Psaltis, Sarah Vreugde   +8 more
wiley   +1 more source

Synthesis of Six Natural Products Enabled by Selective Hydroxylation of Orcinaldehyde‐Like Substrates With an Enzyme Library

Angewandte Chemie, EarlyView.
Achieving selective (sp3)C–H hydroxylation can streamline the synthesis of complex organic molecules. Biocatalysis presents an opportunity to realize this transformation, however, identifying useful enzymes that enable synthetic strategies can be a challenge due to limitations in enzyme substrate scope.
Gonzalo J. Villegas Rodríguez, Evan O. Romero, Jonathan C. Perkins, Diego N. Rojas, Maximilian S. Hrigora, Alison R. H. Narayan   +5 more
wiley   +2 more sources

Extent of Sinus Surgery Is Associated With Disease Control in Biologic Treated Type 2 Dominant CRS

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background A greater benefit of biologics is observed after surgery in Type 2 chronic rhinosinusitis with nasal polyps (CRSwNP). However, the extent of surgery remains undefined in many studies. This study evaluated the extent of surgery on disease control in patients receiving biologics for refractory Type 2 dominant CRSwNP.
Nicholas J. Campion, Peta‐Lee Sacks, Lu Hui Png, Ruoxin Hua, Rhea Darbari Kaul, Raquel Alvarado, Christine Choy, Raymond Sacks, Peter Earls, Raewyn G. Campbell, Larry Kalish, Richard J. Harvey   +11 more
wiley   +1 more source

Leptin May Promote Eosinophilic CRSwNP Progression by Enhancing Eosinophil Chemotaxis and Angiogenesis Under a Type 2 Inflammatory Milieu

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis with nasal polyp (CRSwNP) is a heterogeneous Type 2 inflammatory disease characterized by enhanced eosinophilic infiltration. Both innate and adaptive immunity are involved in the onset and progression of CRSwNP.
Yuki Sonoda, Yohei Sato, Yoshimasa Imoto, Mayumi Tamari, Shigeharu Fujieda   +4 more
wiley   +1 more source

Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization

Angewandte Chemie, EarlyView.
The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu, Zeliang Zhang, Benedikt Seligmann, Van Hung Bui, Tuan‐Anh Minh Nguyen, Thu‐Thuy T. Dang, Jakob Franke   +6 more
wiley   +2 more sources

Complications and Clinical Outcomes Following Modified Endoscopic Denker's With Pyriform Aperture Preservation: A Prospective Analysis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background The modified endoscopic Denker's (MED) approach provides access to all maxillary sinus (MS) walls for resection of various MS and retromaxillary pathologies, but the anteromedial maxilla has historically been resected. This study determined complication rates and outcomes following MED with pyriform aperture (PA) preservation ...
Yasser Almansour, Lane Donaldson, Khaled Kashlan, Swapna Vemuri, Jun Jin, John R. Craig   +5 more
wiley   +1 more source

Toward the Synthesis of Pestalustaine A: Structural Revision and Formation of Original Strained Tricyclic Architectures

Angewandte Chemie, EarlyView.
Our synthetic endeavor toward the total synthesis of the reported unprecedented tricyclic skeleton of the sesquiterpene pestalustaine A allowed us to perform divergent cyclizations of a bicyclo[4.4.1]undec‐3‐ene into complex tricyclic architectures and to revise the structure of the natural product.
Wei Cao, Alicia Ross, Jean‐Pierre Baltaze, Régis Guillot, Menglin Xu, Rongzhen Qin, Bingcheng Yang, Isabel Wong, Katayoon Formul, Cyrille Kouklovsky, Dean J. Tantillo, Vincent Gandon, Guillaume Vincent   +12 more
wiley   +2 more sources

Chronic Rhinosinusitis and Nasal Polyps in Eosinophilic Granulomatosis With Polyangiitis: A Scoping Review

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is one of the most common manifestations of eosinophilic granulomatosis with polyangiitis (EGPA), often preceding the diagnosis of systemic vasculitis by several years. The sinonasal presentation of EGPA typically resembles CRS with nasal polyps (CRSwNP), making it clinically indistinguishable from those
Alisha Sharma, Alyssa Y. Li, Teruko Kishibe, Dennis Wong, Kevin M. Sanders, Maggie Jiang, Heedo Lee, Christine Song, Kieran Mcintyre, Christian Pagnoux, Yvonne Chan, John M. Lee, Daniel J. Lee   +12 more
wiley   +1 more source

Correlation of Local Nasal Biomarkers and Olfactory Dysfunction in Chronic Rhinosinusitis: A Systematic Review and Meta‐Analysis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background To systematically evaluate the local biomarkers correlated with olfactory dysfunction (OD) in chronic rhinosinusitis (CRS). Methods A systematic review was conducted in CINAHL, Cochrane Library, PubMed, and Scopus from inception to July 2025.
David Kayekjian, Neeti Gandra, Shaun A. Nguyen, Shaina W. Twardus, Rodney J. Schlosser   +4 more
wiley   +1 more source