DNA molecules are not completely stable, they are subject to chemical or photochemical damage and errors that occur during DNA replication resulting in mismatched base pairs. Through mechanistic studies Paul Modrich showed how replication errors are corrected by strand-directed mismatch repair in Escherichia coli and human cells.
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http://dx.doi.org/10.1002/anie.201601412 | DOI Listing |
Sci Rep
December 2024
Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.
The cytokine homologs, particularly transforming growth factor (TGF)-β, is a crucial immunomodulatory molecule and involved in growth and developmental processes in several helminths. In this study, the basic properties and functions of T. spiralis TGF-β homolog 2 (TsTGH2) were characterized using bioinformatics and molecular biology approaches.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Computer Sciences and Industries, Universidad Católica del Maule, Talca, Chile.
Antimicrobial resistance (AMR) poses a significant global health challenge, necessitating advanced predictive models to support clinical decision-making. In this study, we explore multi-label classification as a novel approach to predict antibiotic resistance across four clinically relevant bacteria: E. coli, S.
View Article and Find Full Text PDFBMJ Glob Health
December 2024
Division of Water and Health, Ethiopian Institute of Water Resources, Addis Ababa University, Addis Ababa, Ethiopia.
Background: In developing countries, due to improper management of domestic animals' exposures, under-five (U5) children have been affected by diarrhoea. However, there is no evidence that shows the presence of diarrhoea-causing pathogens in the faeces of U5 children and animals residing in the same houses in the Sidama region, Ethiopia.
Methods: A laboratory-based matched case-control study was conducted on children aged 6-48 months in the Sidama region of Ethiopia from February to June 2023.
J Biol Chem
December 2024
School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China; State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China. Electronic address:
Mirror-image nucleosides, as potential antiviral drugs, can inhibit virus DNA polymerase to prevent virus replication. Conversely, they may be inserted into the DNA strands during DNA replication or transcription processes, leading to mutations that affect genome stability. Accumulation of significant mutation damage in cells may result in cell aging, apoptosis, and even uncontrolled cell division.
View Article and Find Full Text PDFMalays J Pathol
December 2024
Tengku Ampuan Rahimah Hospital, Department of Paediatrics, Ministry of Health, Klang, Selangor, Malaysia.
Introduction: To determine the epidemiology of blood culture-positive late-onset sepsis (LOS, >72 hours of age) in 44 Malaysian neonatal intensive care units (NICUs).
Materials And Methods: Study Design: Multicentre retrospective observational study using data from the Malaysian National Neonatal Registry.
Participants: 739486 neonates (birthweight ≥500g, gestation ≥22 weeks) born and admitted in 2015-2020.
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