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The human intestinal bacterium Eggerthella lenta influences gut metabolomes in gnotobiotic mice
The intestinal microbiota and its metabolites are known to influence host metabolic health. However, little is known about the role of specific microbes. In this work, we used the minimal consortium Oligo-Mouse-Microbiota (OMM12) to study the function of Coriobacteriia under defined conditions in gnotobiotic mice. OMM12 mice with or without the addition of the dominant gut bacterium Eggerthella lenta (E. lenta) were fed with diets varying in fat content and primary bile acids. E. lenta stably colonised the mouse caecum at high relative abundances (median: 27.5%). This was accompanied by decreased occurrence of Akkermansia muciniphila and Enterococcus faecalis, but results did not reach stati...
European Partnership on the Assessment of Risks from Chemicals (PARC): Focus on New Approach Methodologies (NAMs) in Risk Assessment
The European Partnership on the Assessment of Risks from Chemicals (PARC) project was launched in 2022. The overarching aim of this partnership is to enhance our knowledge about chemical substances to better safeguard human health and the environment against harmful effects. The project will run for seven years under Horizon Europe. PARC is subdivided into several work packages (WPs). WP5 is focused on hazard assessment for human and environmental health and includes more than 80 partners across Europe. WP5 aims to fill data gaps for specified chemical substances of concern (e.g, bisphenol alternatives) and to develop or improve new approach methodologies (NAMs) for chemical hazard assessment. This is in order to progress towards a risk assessment paradigm relying less on animal toxicity data, both with respect to human health and environmental safety. As the PARC initiative will evolve over time with respect to both projects and activities, presenting early initiatives will foster an increased awareness of ongoing activities and potential incorporation of new activities going forward.
Amyloid Proteins
A proven collection of readily reproducible techniques for studying amyloid proteins and their involvement in the etiology, pathogenesis, diagnosis, and therapy of amyloid diseases. The contributors provide methods for the preparation of amyloid and its precursors (oligomers and protofibrils), in vitro assays and analytical techniques for their study, and cell culture models and assays for the production of amyloid proteins. Additional chapters present readily reproducible techniques for amyloid extraction from tissue, its detection in vitro and in vivo, as well as nontransgenic methods for developing amyloid mouse models. The protocols follow the successful Methods in Molecular BiologyTM series format, each offering step-by-step laboratory instructions, an introduction outlining the principle behind the technique, lists of the necessary equipment and reagents, and tips on troubleshooting and avoiding known pitfalls.
Stable Isotope Probing and Related Technologies
The ideal starting point for investigating, developing, and implementing stable isotope technologies. • Guides researchers through basic, tested, and proven protocols including DNA, RNA, protein, and phospholipid fatty acid (PLFA) SIP, from concept and history through detailed methodology, troubleshooting, and interpretation to optimal and future uses. • Explores important and emerging applications of SIP in environmental microbiology, ranging from bioremediation and gene mining to carbon tracking and gut microflora function. • Examines explorations of further elegant isotope labeling technologies such as Raman-FISH, NanoSIMS, and isotope arrays. • Serves as a valuable resource for environmental microbiology students and researchers and genomics, biotechnology, and medical microbiology professionals.
Clinical Cardiac Electrophysiology in the Young
This book focuses on the practical aspects of clinical electrophysiology of cardiac arrhythmias in the young. It represents a compilation of the clinical course, electrophysiologic studies, pharmacological management, and transcatheter ablation therapy in patients from infancy through young adulthood. Topics include the mechanism, ECG characteristics, electrophysiologic findings, treatment, and prognosis of tachyarrhythmias and bradyarrhythmias; specialized subjects including syncope, cardiac pacemakers, and implantable cardiac defibrillators; pharmacology of antiarrhythmic agents; and the roles of allied healthcare professionals in the management of arrhythmias in the young. This revised ed...
Genetically Engineered Organisms in Bioremediation
Genetically Engineered Organisms in Bioremediation provides comprehensive coverage of biotechnological applications of genetically engineered microorganisms for the bioremediation of polluted environments. Chapters are contributed by international scientists with in-depth knowledge, expertise, vision and commitment in their scientific profession. They detail several genetically engineered microorganisms and their enzymes that could be applied to biologically break down persistent organic pollutants and recombinant DNA technologies which entail development of "suicidal-GEMs" for effective and safe remediation of heavily polluted sites. FEATURES: • Highlights genes that encode catabolic enzy...
