Results 61 to 70 of about 937,622 (274)

A Concise Asymmetric Synthesis of A β-Lactam-Based Cholesterol Absorption Inhibitor

, 2016
A concise, four-step, asymmetric synthesis of a β-lactam-based cholesterol absorption inhibitor, Sch 57939, was developed. The discovery of a one-step enantio- and diastereoselective synthesis of a trans-β-lactam provided easy access to the desired ...
George Guangzhong Wu (3075429)
core   +1 more source

Comparison of initial empirical antibiotic regimens in severe community-acquired pneumonia: a network meta-analysis

BMC Pulmonary Medicine
Background Severe community-acquired pneumonia (SCAP) remains a leading cause of morbidity and mortality worldwide. Identifying the optimal antibiotic regimen for treating SCAP is crucial for improving patient outcomes.
Min Wang, Jing Zhang, Xiaoming Wang, Qian Wang, Lian Wang, Han Zhuang, Ao Liu   +6 more
doaj   +1 more source

Risk of Multidrug Resistant Bacteria Acquisition in Patients with Declared β-Lactam Allergy during Hospitalization in Intensive Care Unit: A Retrospective Cohort Study (2007-2018)

Journal of Immunology Research, 2022
Introduction. The risk of extended spectrum β-lactamase (ESBL) bacterial acquisition in patients with β-lactam allergy has been poorly investigated. In a previous study conducted over a 6-year long period (2007-2012), we found that patients with declared
Alessio Strazzulla, Maria Concetta Postorino, Nabil Belfeki, Laura Iordache, Astrid de Pontfarcy, Aurelia Pitsch, Pierre Leroy, Sebastien Jochmans, Mehran Monchi, Sylvain Diamantis   +9 more
doaj   +1 more source

A Comprehensive Microbial Gene Catalog of the Human Airway Microbiome Across Anatomical Sites and Geographic Regions

Advanced Science, EarlyView.
An integrated Human Airway Microbiome Gene Catalog (iHAMGC) is constructed from 12,273 metagenomic airway samples, providing a high‐resolution reference of respiratory microbial genes. The catalog enables systematic exploration of taxonomic and functional variation across airway niches and geographic regions, revealing site‐specific and region ...
Qing Zhang, Dashu Li, Bo Liu, Yue Zhang, Min Li, Ruochun Guo, Yawen Ni, Shibin Chen, Biao Ni, Lijie Qiu, Guorui Xing, He Dong, Qiulong Yan, Shenghui Li, Xiaohui Zou, Bin Cao   +15 more
wiley   +1 more source

β-Lactam-Based Azomethine Ylide Reactivity. Expedient Synthesis of Carbapenams and Carbapenems

, 2016
β-Lactam-Based Azomethine Ylide Reactivity.
Timothy Gallagher (1261572), Sarah R. Martel (2999676), Mary F. Mahon (1293876), Richard Wisedale (2999679), Lee D. Hall (2999673), Neil J. Hales (2694514), Robert H. Bradbury (1730791)   +6 more
core   +1 more source

β-lactam-induced MRSA biofilm [PDF]

, 2014
Methicillin-resistant Staphylococcus aureus (MRSA) is a leading cause of hospital- and community-associated infections. The formation of adherent clusters of cells known as biofilms is an important virulence factor in MRSA pathogenesis.
Piotrowski, Brian O., Callahan, Mary T., Roberts, Afsoon D., Keiser, John F., Ng, Mandy, Epstein, Samuel B., Kaplan, Jeffrey B., Simon, Gary L.   +7 more
core   +3 more sources

Fluoroquinolones versus β-Lactam/β-Lactamase Inhibitors in Outpatients with Chronic Obstructive Pulmonary Disease and Pneumonia: A Nationwide Population-Based Study. [PDF]

PLoS ONE, 2015
Studies on the association between antibiotic treatment and outcomes in outpatients with chronic obstructive pulmonary disease (COPD) and pneumonia are scarce.
Kuan-Yin Lin, Chi-Chuan Wang, Chia-Hui Lin, Wang-Huei Sheng, Shan-Chwen Chang   +4 more
doaj   +1 more source

Targeted Degradation of Picornaviral 3C Protease via PROTACs Confers High Barrier to Viral Resistance and Broad‐Spectrum Antiviral Activity

Advanced Science, EarlyView.
This study reports D34 as the first PROTAC degrader that targets the 3C protease of picornaviruses. D34 effectively degrades EV71 3C protease via the ubiquitin‐proteasome pathway. More importantly, D34 exhibits a high resistance barrier and shows broad‐spectrum antiviral activity against multiple picornaviruses, highlighting its potential as a novel ...
Weilong Deng, Junyu Chen, Yingyue Pang, Yuanyuan Zhang, Siqian Chen, Guoliang You, Xiaoman Tian, Zhongxin Xu, Jing Wang, Luqing Shang   +9 more
wiley   +1 more source

High‐Density E. Coli Cultivation Arrays for Combinatorial Drug Testing With Subsequent Lipid Profiling by MALDI‐MS

Advanced Science, EarlyView.
High‐throughput antibiotic cross‐gradient assays on microdroplet arrays. A multichannel printhead together with five pressure regulators forms droplet arrays of up to 20 832 droplets within 25 minutes. Each droplet contains unique concentrations of antibiotics, allowing to moniture a vast spectrum of bacterial repsonses over night. The bacterial growth
M. Breitfeld, C. L. Dietsche, F‐L. Born, I. Onipko, L. Blaase, P. S. Dittrich   +5 more
wiley   +1 more source

Cysteine Thioaldehydes: Photolytic Generation, Reactivity, and Biological Implications

Angewandte Chemie, EarlyView.
Photolysis of cysteine phenacylsulfides bearing non‐conjugating electron‐withdrawing substituents leads to high conversions into cysteine thioaldehydes through a Norrish type‐II pathway. This methodology enabled the study of the aqueous reactivity of these important biosynthetic intermediates, which, depending on peptide sequence, pH and buffer ...
Ardra Karthika, Matthew Murray, Guillermo Palop, Lee‐Ann J. Keane, Patrick McArdle, Nicholas D. J. Yates, Christopher D. Spicer, Alison Parkin, Martin A. Fascione, Eddie L. Myers   +9 more
wiley   +2 more sources