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Jianbing Wu et al.
Journal of separation science, 35(24), 3586-3592 (2012-12-12)
An effective analytical protocol using graphene-based SPE coupled with HPLC-MS/MS for determination of chloramphenicol (CAP) in aquatic products has been developed. In the present work, graphene was evaluated as SPE sorbents for the analytes enrichment and clean up. The target
Aline Fagundes Martins et al.
Cells, tissues, organs, 200(5), 326-338 (2015-09-24)
Repulsive guidance molecules (RGMs) compose a family of glycosylphosphatidylinositol (GPI)-anchored axon guidance molecules and perform several functions during neural development. New evidence has suggested possible new roles for these axon guidance molecules during skeletal muscle development, which has not been
Yohei Y Yamamoto et al.
Journal of molecular biology, 426(14), 2667-2678 (2014-05-27)
Chaperonins are ubiquitous molecular chaperones with the subunit molecular mass of 60kDa. They exist as double-ring oligomers with central cavities. An ATP-dependent conformational change of the cavity induces the folding of an unfolded protein that is captured in the cavity.
Jochem N A Vink et al.
Molecular cell, 77(1), 39-50 (2019-11-19)
CRISPR-Cas systems encode RNA-guided surveillance complexes to find and cleave invading DNA elements. While it is thought that invaders are neutralized minutes after cell entry, the mechanism and kinetics of target search and its impact on CRISPR protection levels have
M G Maaland et al.
Journal of veterinary pharmacology and therapeutics, 38(5), 443-450 (2015-01-28)
The aim of this study was to evaluate the potential of chloramphenicol and florfenicol as second-line antimicrobial agents for treatment of infections caused by methicillin-resistant Staphylococcus pseudintermedius (MRSP) and extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in dogs, through a systematic in
Silvia A C Schinner et al.
Infection and immunity, 83(5), 1983-1991 (2015-03-04)
Escherichia coli MG1655, a K-12 strain, uses glycolytic nutrients exclusively to colonize the intestines of streptomycin-treated mice when it is the only E. coli strain present or when it is confronted with E. coli EDL933, an O157:H7 strain. In contrast
Arianna Pompilio et al.
BMC microbiology, 15, 109-109 (2015-05-23)
Staphylococcus pseudintermedius is an opportunistic pathogen recognized as the leading cause of skin, ear, and post-operative bacterial infections in dogs and cats. Zoonotic infections have also recently been reported causing endocarditis, infection of surgical wounds, rhinosinusitis, and catheter-related bacteremia. The
S Walker et al.
Eye (London, England), 12 ( Pt 5), 875-879 (1999-03-10)
There has been considerable controversy regarding the safety of topical chloramphenicol in ophthalmic practice. The evidence for associated haematopoietic toxicity in idiosyncratic and dose-dependent forms was reviewed. The 7 cases of idiosyncratic haematopoietic reactions associated with topical chloramphenicol reported in
Gregg M Hudson et al.
The Journal of biological chemistry, 290(29), 18237-18244 (2015-06-10)
Class IIa histone deacetylases repress transcription of target genes. However, their mechanism of action is poorly understood because they exhibit very low levels of deacetylase activity. The class IIa HDACs are associated with the SMRT/NCoR repression complexes and this may
Michael A Lobritz et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(27), 8173-8180 (2015-06-24)
Bacteriostatic and bactericidal antibiotic treatments result in two fundamentally different phenotypic outcomes--the inhibition of bacterial growth or, alternatively, cell death. Most antibiotics inhibit processes that are major consumers of cellular energy output, suggesting that antibiotic treatment may have important downstream
Andre Kriegeskorte et al.
mBio, 5(4), e01447-e01414 (2014-07-31)
Staphylococcus aureus thymidine-dependent small-colony variants (TD-SCVs) are frequently isolated from patients with chronic S. aureus infections after long-term treatment with trimethoprim-sulfamethoxazole (TMP-SMX). While it has been shown that TD-SCVs were associated with mutations in thymidylate synthase (TS; thyA), the impact
Gal Yerushalmi et al.
Journal of bacteriology, 196(15), 2798-2806 (2014-05-20)
Enteropathogenic Escherichia coli (EPEC) is a major cause of food poisoning, leading to significant morbidity and mortality. EPEC virulence is dependent on a type III secretion system (T3SS), a molecular syringe employed by EPEC to inject effector proteins into host
Monika Banach et al.
CNS & neurological disorders drug targets, 14(7), 855-862 (2015-02-26)
The aim of the study was to determine anticonvulsant activity of lamotrigine (LTG) after acute and chronic treatment in four different protocols against maximal electroshock-induced seizures in mice. Such a knowledge seems to be valuable in view of the fact
Pratheeba Yogendrarajah et al.
Food microbiology, 52, 185-196 (2015-09-05)
A liquid chromatography triple quadrupole tandem mass spectrometry method was developed and validated to determine mycotoxins, produced by fungal isolates grown on malt extract agar (MEA). All twenty metabolites produced by different fungal species were extracted using acetonitrile/1% formic acid.
Jesús Arenas et al.
BMC microbiology, 15, 156-156 (2015-08-06)
Neisseria meningitidis is an inhabitant of the mucosal surfaces of the human nasopharynx. We recently demonstrated that the secreted meningococcal Two-partner secretion protein A (TpsA) is involved in interbacterial competition. The C-terminal end of the large TpsA protein contains a
Tobias Lahmer et al.
Mycopathologia, 179(1-2), 63-71 (2014-10-29)
Patients with liver cirrhosis are at increased risk for fungal infections. However, distinction of fungal colonisation (FC) and invasive mycoses is difficult. Aim of this study was to analyse the impact of FC on mortality of cirrhotic ICU-patients. Retrospective mortality
Yudong Liu et al.
Antimicrobial agents and chemotherapy, 53(2), 512-518 (2008-11-26)
Methicillin (meticillin)-resistant Staphylococcus aureus (MRSA) is a serious problem worldwide. To investigate the molecular epidemiology of MRSA isolates in China, a total of 702 MRSA isolates collected from 18 teaching hospitals in 14 cities between 2005 and 2006 were characterized
Grace Yim et al.
Chembiochem : a European journal of chemical biology, 15(17), 2613-2623 (2014-09-27)
In this study, a draft genome sequence of Actinoplanes sp. ATCC 53533 was assembled, and an 81-kb biosynthetic cluster for the unusual sulfated glycopeptide UK-68,597 was identified. Glycopeptide antibiotics are important in the treatment of infections caused by Gram-positive bacteria.
Orly Avraham et al.
Journal of structural biology, 191(2), 139-148 (2015-07-02)
Dimeric avidins are a newly discovered subgroup of the avidin family that bind biotin with high affinity. Their dimeric configuration is a quaternary substructure of the classical tetrameric avidins which lacks the requirement of the critical Trp that defines the
Sunil Mathur et al.
Cell chemical biology, 27(1), 74-82 (2019-12-21)
Activity-based protein profiling is an invaluable technique for studying enzyme biology and facilitating the development of therapeutics. Ubiquitin E3 ligases (E3s) are one of the largest enzyme families and regulate a host of (patho)physiological processes. The largest subtype are the
Irina Amorim et al.
Helicobacter, 19(4), 249-259 (2014-04-03)
The gastric mucosa of dogs is often colonized by non-Helicobacter pylori helicobacters (NHPH), while H. pylori is the predominant gastric Helicobacter species in humans. The colonization of the human gastric mucosa by H. pylori is highly dependent on the recognition
S A Rayner et al.
Drug safety, 14(5), 273-276 (1996-05-01)
The question of a link between the use of topical ocular chloramphenicol and the incidence of aplastic anaemia continues to be a controversial issue in ophthalmological spheres. At present topical ocular chloramphenicol is widely used in the UK for the
Ashwati Raghunath
BMJ case reports, 2013, doi:10-doi:10 (2013-01-04)
The patient is a 52-year-old man with schizophrenia who developed severe, unremitting gingival pain after his ziprasidone dosage was increased from 80 to 120 mg. His physical examination and laboratory findings were unremarkable. He did not have any extra-pyramidal side
Milena Soares dos Santos et al.
BMC infectious diseases, 15, 302-302 (2015-08-01)
Hospital-based surveillance for pneumococcal meningitis has been conducted since January 1996 in the city of Salvador, Brazil. The purpose of this study was to describe the temporal evolution of Penicillin Non-Susceptible Streptococcus pneumoniae (PNSSP) in regards to serotype distributions and
Kenneth Day et al.
PloS one, 9(10), e111756-e111756 (2014-10-31)
Current target enrichment systems for large-scale next-generation sequencing typically require synthetic oligonucleotides used as capture reagents to isolate sequences of interest. The majority of target enrichment reagents are focused on gene coding regions or promoters en masse. Here we introduce
Laura Gavaldà et al.
Respiratory medicine, 109(8), 1079-1085 (2015-05-24)
Routine microbiological surveillance of flexible bronchoscopes is recommended in different guidelines. The study aims to assess whether bronchoscopes reprocessing methods achieved an appropriate decontamination level and whether manual flushing of 70% ethyl alcohol at the end of the cycle reduces
It is time to stop using topical chloramphenicol.
J R Smith et al.
Australian and New Zealand journal of ophthalmology, 25(1), 83-88 (1997-02-01)
Jian Han et al.
Microbiology (Reading, England), 161(Pt 1), 57-66 (2014-11-02)
Staphylococcus aureus is a prominent human pathogen and is known to form L-forms in vitro and in vivo during infection. However, the conditions of L-form formation are not optimal and the mechanisms of L-form formation in this organism are unknown.
María Inmaculada García-García et al.
PloS one, 9(5), e96976-e96976 (2014-05-13)
N-acetyl neuraminate lyases (NALs) catalyze the reversible aldol cleavage of N-acetyl neuraminic acid (Neu5Ac) to pyruvate and N-acetyl-D-mannosamine (ManNAc). Previous phylogenetic studies divided NALs into four different groups. Groups 1 and 2 have been well characterized at both kinetic and
Lyly Luhachack et al.
Nature communications, 10(1), 2868-2868 (2019-06-30)
Prokaryotes and eukaryotes alike endogenously generate the gaseous molecule hydrogen sulfide (H2S). Bacterial H2S acts as a cytoprotectant against antibiotics-induced stress and promotes redox homeostasis. In E. coli, endogenous H2S production is primarily dependent on 3-mercaptopyruvate sulfurtransferase (3MST), encoded by
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