Results 51 to 60 of about 61,324 (269)

A Chirality‐Converted Bacteriolytic Dodecapeptide Regulates Vibrio‐Induced Polymicrobial Infection and Ameliorates Invasion‐Associated Gut Microbiota Disequilibrium

Advanced Science, EarlyView.
Multidrug‐resistant Vibrio infections are rising rapidly and threaten coastal populations worldwide. This study introduces D‐zp37, a chirality‐engineered antimicrobial peptide with exceptional potency against resistant Vibrio species. D‐zp37 kills planktonic cells, blocks mixed‐species biofilms, disrupts essential bacterial stress responses, and shows ...
Ping Zeng, Qipeng Cheng, Xiaoxu Zhang, Honglan Wang, Jinghan Zhang, Xinyi Ding, Pengfei Zhang, Lanhua Yi, Kwok‐Yin Wong, Kin‐Fai Chan, Sheng Chen, Sharon Shui Yee Leung   +11 more
wiley   +1 more source

Reversible inactivation of a peptidoglycan transpeptidase by a β-lactam antibiotic mediated by β-lactam-ring recyclization in the enzyme active site

Scientific Reports, 2017
β-lactam antibiotics act as suicide substrates of transpeptidases responsible for the last cross-linking step of peptidoglycan synthesis in the bacterial cell wall.
Zainab Edoo, Michel Arthur, Jean-Emmanuel Hugonnet   +2 more
doaj   +1 more source

Additional file 2: of Treatment of community-onset pneumonia in neutropenic cancer patients: β-lactam monotherapy versus combination antibiotic regimens

, 2019
Table S2.. Multivariate analysis of 90-day all-cause mortality due to neutropenic pneumonia. (DOCX 15 kb)
Seok, Hyeri, Ko, Jae-Hoon, Peck, Kyong, Kim, Ji-Yeon, Lee, Ji, Park, Ga, Cho, Sun, Kang, Cheol-In, Lee, Nam, Chung, Doo   +9 more
openaire   +1 more source

β-lactam Antibiotics used for this study.

, 2015
β-lactam Antibiotics used for this study.
Kristina Crona (567679), Bernd Sturmfels (73407), Portia M. Mira (735579), Miriam Barlow (197488), Juan C. Meza (735580), Devin Greene (567678)   +5 more
core   +1 more source

A Dual‐Functional Biohybrid Nanorobot to Synergistically Eradicate Biofilm and Degrade Antibiotic Resistance Genes

Advanced Science, EarlyView.
A biohybrid nanorobot integrating lytic bacteriophage N4 with Pd nanozymes is developed for targeted eradication of multidrug‐resistant E. coli biofilms. Synergistic bacterial lysis and ROS‐mediated oxidation enable simultaneous biofilm removal and antibiotic resistance genes degradation, maintaining high efficacy in complex wastewater environments ...
Junzheng Zhang, Tong Dou, Luokai Wang, Jingxian Yang, Wenrui Wang, Shuaitian Guo, Xiangyu Li, Xuefang Huang, Yunlei Xianyu, Dongsheng Wang   +9 more
wiley   +1 more source

Additional file 1: of Treatment of community-onset pneumonia in neutropenic cancer patients: β-lactam monotherapy versus combination antibiotic regimens

, 2019
Table S1. Causative pathogens of neutropenic pneumonia. (DOCX 15 kb)
Seok, Hyeri, Ko, Jae-Hoon, Peck, Kyong, Kim, Ji-Yeon, Lee, Ji, Park, Ga, Cho, Sun, Kang, Cheol-In, Lee, Nam, Chung, Doo   +9 more
openaire   +1 more source

Outer membrane vesicles from β-lactam-resistant Escherichia coli enable the survival of β-lactam-susceptible E. coli in the presence of β-lactam antibiotics

, 2018
Outer membrane vesicles (OMVs) containing various bacterial compounds are released from mainly gram-negative bacteria. Secreted OMVs play important roles in the ability of a bacterium to defend itself, and thus contribute to the survival of bacteria in a
Jong-Su Seo, Suk-Kyung Lim, Se Pyeong Im, Jaesung Kim, Jong-Hwan Kim, Tae Sung Jung, Jung Seok Lee, Jae Wook Jung, Gwang Joong Kim, Seong Bin Park, Jong-Wook Song, Young Ju Lee, Si Won Kim, Hyun Suk Jung, Tae Won Gong, Jassy Mary S. Lazarte   +15 more
core   +1 more source

Pathogen‐Centric Activation of an Azoreductase‐Responsive Antibody‐Antibiotic Conjugate for the Targeted Eradication of MRSA

Advanced Science, EarlyView.
A pathogen‐centric antibody‐antibiotic conjugate (AZO‐AAC) releases antibiotics via bacterial azoreductase, independent of host‐lysosomal function. This mechanism achieves nanomolar eradication of both planktonic and intracellular methicillin‐resistant Staphylococcus aureus (MRSA).
Qi Cheng, Lianqi Liu, Chenghua Liu, Fei Xie, Jingwen Dong, Xiaoyu Qin, Shunxiang Huang, Xian Li, Xingyuan Kou, Hongbin Deng, Jiannan Feng, Wu Zhong, Dian Xiao, Xinbo Zhou   +13 more
wiley   +1 more source

Strategies to Improve the Biosynthesis of β-Lactam Antibiotics by Penicillin G Acylase: Progress and Prospects

Frontiers in Bioengineering and Biotechnology, 2022
β-Lactam antibiotics are widely used anti-infection drugs that are traditionally synthesized via a chemical process. In recent years, with the growing demand for green alternatives, scientists have turned to enzymatic synthesis. Penicillin G acylase (PGA)
Xin Pan, Lei Xu, Yaru Li, Sihua Wu, Sihua Wu, Yong Wu, Wenping Wei   +6 more
doaj   +1 more source

A Strong Lewis Acidic Diethylsilylium Catalyst for Direct Sulfonamidation of Challenging Ketones

Advanced Science, EarlyView.
Low‐substitution‐order silylium ions (R2HSi+) exhibit exceptional Lewis acidic activity. We report diethylsilylium‐catalyzed reductive sulfonamidation of functionalized ketones to access β‐amino esters. The in situ generated ion pair shows enhanced reactivity, with diethylsilane serving as both reductant and precatalyst. The developed protocol proceeds
Woo Hee Kim, Muhammad Israr, You Kyoung Chung, Shinwon Ham, Joonsuk Huh, Han Yong Bae   +5 more
wiley   +1 more source