Regulatory inactivation of DnaA helps ensure that the Escherichia coli chromosome is replicated only once per cell cycle, through accelerated hydrolysis of active replication initiator ATP-DnaA to inactive ADP-DnaA. Analysis of deltahda strains revealed that the regulatory inactivation of DnaA component Hda is necessary for maintaining controlled initiation but not for cell growth or viability.
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http://dx.doi.org/10.1128/JB.185.10.3244-3248.2003 | DOI Listing |
Environ Sci Pollut Res Int
January 2025
Department of Chemical Engineering, Zakir Hussain College of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.
Water pollution because of the presence of heavy metals remains a serious worry. The present work demonstrates the exclusion of cobalt ion (or Co(II)) from water using novel and cost-effective biosorbents. Initially, the biosorbent was chemically modified using orthophosphoric acid and then subjected to calcination to result acid modified date seed biochar (AMDB).
View Article and Find Full Text PDFCiprofol, a novel γ-aminobutyric acid receptor agonist, outperforms propofol with minimal cardiovascular effects, higher potency, reduced injection pain, and a broader safety margin. Despite these advantages, ciprofol's clinical research is still emerging. This study compares the median effective dose (ED) and adverse reactions of ciprofol and propofol, in conjunction with sufentanil, for suppressing cardiovascular responses during tracheal intubation.
View Article and Find Full Text PDFNat Commun
January 2025
Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.
Obesity poses a global health challenge, demanding a deeper understanding of adipose tissue (AT) and its mitochondria. This study describes the role of the mitochondrial protein Methylation-controlled J protein (MCJ/DnaJC15) in orchestrating brown adipose tissue (BAT) thermogenesis. Here we show how MCJ expression decreases during obesity, as evident in human and mouse adipose tissue samples.
View Article and Find Full Text PDFNeuroimage
January 2025
Beijing Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, Beijing, 100048, China. Electronic address:
Although creative ideas often emerge during distraction activities unrelated to the creative task, empirical research has yet to reveal the underlying neurocognitive mechanism. Using an incubation paradigm, we temporarily disengaged participants from the initial creative ideation task and required them to conduct two different distraction activities (moderately-demanding: 1-back working memory task, non-demanding: 0-back choice reaction time task), then returned them to the previous creative task. On the process of creative ideation, we calculated the representational dissimilarities between the two creative ideation phases before and after incubation period to estimate the neural representational change underlying successful incubation.
View Article and Find Full Text PDFJ Small Anim Pract
January 2025
Department of Clinical Science and Services, The Royal Veterinary College, University of London, Hatfield, UK.
Objectives: To determine if tolerance of intravenous catheterisation differs following the application of vapocoolant spray compared to lidocaine/prilocaine cream in dogs and cats.
Materials And Methods: A randomised controlled trial of client-owned dogs and cats requiring intravenous catheterisation was performed. They were randomly allocated to either have lidocaine/prilocaine cream applied to their skin 1 hour prior to intravenous catheterisation or a swab saturated with vapocoolant spray applied immediately prior to intravenous catheterisation.
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