Results 161 to 170 of about 21,566 (246)

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

Governing black soils for food and climate security. [PDF]

Nat Commun
Liao X, Li Y, Wang J, Dong J, Yao Q, Li J, Hou R, Li Z, Zhang Y, Jia X, Leng G.   +10 more
europepmc   +1 more source

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

3‐Deoxy‐3‐Fluoro Mannuronic Acid Alginates: Stereoselective Automated Synthesis and Conformational Behaviour

Angewandte Chemie, EarlyView.
The impact of C‐3 fluorination on the synthesis and conformation of alginate oligosaccharides is investigated. A C‐3‐fluoro mannuronic acid building block is generated and shown to react with high β‐selectivity. Automated glycan assembly enables access to uniquely fluorinated mannuronic acid alginates where deoxyfluorination is shown not to perturb the
Sean T. Evans, Nishu Yadav, Wouter A. Remmerswaal, Daan Hoogers, Koen N. A. van de Vrande, Sarah Hosking, Ana Poveda, Jeroen D. C. Codée, Jesús Jiménez‐Barbero, Martina Delbianco, Gavin J. Miller   +10 more
wiley   +2 more sources

Strategic solidarity: solidarity and self-interest in Scandinavian contributions to global Covid-19 vaccine equity. [PDF]

Global Health
Storeng KT, de Bengy Puyvallée A, Sandvik Ling E, Moe Fejerskov A.   +3 more
europepmc   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

Animal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao, Chunlan Zou, Junxian Li, Yang Yang, Yuanyuan Han, Tingyu Ke   +5 more
wiley   +1 more source

How to revive science in America. [PDF]

Proc Natl Acad Sci U S A
Fineberg HV.
europepmc   +1 more source

A new Patient‐Reported Outcome Scale to assess autoimmune Encephalitis: PROSE

Annals of Neurology, EarlyView.
Objective Autoimmune encephalitis (AIE) has long‐lasting effects. Generic clinical assessment‐scales insufficiently capture disease‐specific sequelae. Patient‐reported outcome measures (PROMs) assess outcomes important to patients, ensuring relevance in the clinic and trials.
Juliette Brenner, Yvette S. Crijnen, Ilse Kulderij, Sammy H.C. Olijslagers, Cinthia J. Ruhe, Anke A.G. Tolido, Laura P. Kersten, Julia C.P. Verkoelen, Chelsey N. Kret, Brigit Thomassen, Finn I. van Wijnen, Juna M. de Vries, Tessa M. Bienfait, Tessa Brand, Jeroen Kerstens, Robin W. van Steenhoven, Anna E. M. Bastiaansen, Marienke A.A.M. de Bruijn, Agnes van Sonderen, Sharon Veenbergen, Ava Easton, Peter A. E. Sillevis Smitt, Esther van den Berg, Melissa Mandarakas Mandarakas, Maarten J. Titulaer   +24 more
wiley   +1 more source

Underexplored Catalysts as General Structures: Application of Machine Learning Techniques for Reaction‐Specific Datasets

Angewandte Chemie, EarlyView.
Bias‐aware machine learning identified an underexplored imidazolidinone catalyst with broad competitive performance in iminium‐based reactions. Experimental benchmarking shows how data‐driven prioritization can uncover overlooked catalyst scaffolds from sparse and historically biased literature data.
Jiajing Li, Isaiah O. Betinol, Junshan Lai, Soresu Juyo, Jolene P. Reid   +4 more
wiley   +2 more sources

Bridging the gap: the Pasteur Network's approach to equitable vaccine development and manufacturing. [PDF]

BMC Glob Public Health
Pasteur Network Vaccine Manufacturing Initiative.
europepmc   +1 more source