Leptospira Pathogenesis
Leptospira Pathogenesis - Related Videos
08:51
A Modular Workflow for Quantitative, Structural and Functional Analysis of Leptospira Biofilms
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2025
This protocol delivers a modular, BSL-2 workflow combining crystal-violet biomass assays, time-lapse phase-contrast kinetics, confocal 3-D/matrix mapping, SEM ultrastructure, and an in vivo hamster infection module to cultivate, quantify, characterize and investigate Leptospira biofilm functional role, enabling standardized evaluation of mutants and anti-biofilm interventions across laboratories.
07:27
CRISPR Interference-Based Gene Silencing: A Technique for Targeted Repression of Gene Function in Pathogenic Leptospira
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2025
This video demonstrates a CRISPR interference-based gene silencing in pathogenic Leptospira. Targeted repression of gene expression using a CRISPR/Cas system that blocks mRNA formation helps identify candidate genes for pathological and pharmacological studies.
06:56
Antibody Transfection into Neurons as a Tool to Study Disease Pathogenesis
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Cited by 10 •
2012
A rapid approach to investigate interactions and effects on molecular mechanisms related to the presence of antibodies in an intracellular environment is described. The method involves transfection of antibodies into live cells using a non-covalent complex formation based on a lipid formulation. The technique is adaptable to immortalized cell lines and primary cells.
06:05
Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples
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2024
In this study, a dot-blot application was designed to detect Leptospira from the three main clades in water samples. This method allows for the identification of minimal DNA quantities specifically targeted by a digoxigenin-labeled probe, easily detected by an anti-digoxigenin antibody. This approach is a valuable and satisfactory tool for screening purposes.
01:20
Asthma: Pathogenesis and Management
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2024
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms. Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
FAQs
Surface adhesins and lipoproteins mediate molecular contact with extracellular matrix, endothelial cells, and immune defenses. These contacts can help pathogenic Leptospira remain associated with host tissues rather than merely pass through them, linking bacterial surface chemistry to tissue colonization and inflammation. Studying these interactions helps explain how bacterial factors influence tissue involvement and disease severity.
Motility allows the spirochetes to move through tissues and the bloodstream, connecting their physical movement with the spread of infection within the host. This behavior is important because dissemination exposes the bacteria to different cellular environments, including endothelial surfaces and immune defenses. Biochemical analysis of motility therefore helps relate bacterial movement to colonization patterns and disease progression.
Complement evasion is significant because it concerns how pathogenic Leptospira interact with a major host immune defense while remaining capable of dissemination. Examining this process alongside bacterial surface components and host responses can clarify why some infections produce stronger inflammation or more severe tissue effects. It also identifies immune-related processes that may be relevant to antimicrobial or vaccine research.
Biochemical studies can focus on interactions among bacterial adhesins, lipoproteins, extracellular matrix components, endothelial cells, and immune defenses. Examining these interfaces connects molecular binding and immune-related behavior with broader outcomes such as tissue colonization, inflammation, and dissemination. This approach provides a framework for relating specific bacterial factors to host responses without treating disease severity as a purely bacterial or purely host-driven event.
Studying the molecular and cellular events of infection can help identify diagnostic biomarkers associated with bacterial activity, host responses, or tissue injury. The overview specifically connects this research with kidney and liver injury, so biochemical investigations may be directed toward signals that reflect these clinically important effects. Such findings can improve understanding of disease severity and support diagnostic development.
Understanding how bacterial factors interact with tissues and immune defenses can reveal potential antimicrobial targets and vaccine candidates. Research may also clarify how complement evasion, colonization, inflammation, and organ injury contribute to clinical outcomes. These applications depend on connecting molecular mechanisms with host consequences, making pathogenesis studies relevant to both treatment strategy and prevention of leptospirosis.