Video Experimental Relacionado

Updated: Jun 24, 2026

The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
09:03

The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice

Published on: February 3, 2012

Un aumento de 20 veces en el riesgo de resistencia a la lamivudina en el subtipo adw del virus de la hepatitis B

B Zöllner, J Petersen, M Schröter

    Lancet (London, England)
    |April 6, 2001
    PubMed
    Resumen

    Los portadores del subtipo adw del virus de la hepatitis B (VHB) enfrentan un mayor riesgo de desarrollar resistencia a la lamivudina durante el tratamiento antiviral en comparación con los portadores del subtipo ayw. Este aumento del riesgo puede estar relacionado con cambios concurrentes en el antígeno superficial de la hepatitis B (HBsAg).

    Más Videos Relacionados

    A Robust Pneumonia Model in Immunocompetent Rodents to Evaluate Antibacterial Efficacy against S. pneumoniae, H. influenzae, K. pneumoniae, P. aeruginosa or A. baumannii09:17

    A Robust Pneumonia Model in Immunocompetent Rodents to Evaluate Antibacterial Efficacy against S. pneumoniae, H. influenzae, K. pneumoniae, P. aeruginosa or A. baumannii

    Published on: January 2, 2017

    Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro11:06

    Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro

    Published on: January 31, 2022

    Videos de Conceptos Relacionados

    Pulmonary Tuberculosis I01:29

    Pulmonary Tuberculosis I

    Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
    Causative Organism
    The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
    Mode of...
    Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

    Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

    In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
    Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment01:08

    Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment

    Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
    Drug Toxicity: Overview01:00

    Drug Toxicity: Overview

    Drug toxicity quantifies the harm a compound causes to an organism, varying by dose and potentially impacting whole systems or specific organs like the liver. Toxic reactions may arise from venomous insect or spider bites, with effects ranging from mild symptoms to severe outcomes such as brain damage or death. Common forms of acute poisoning include ethanol intoxication and overdose of pain or fever medications, with substances like GHB and heroin being particularly lethal at doses close to...
    Drug Toxicity: Risk factors01:24

    Drug Toxicity: Risk factors

    Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
    Drug toxicity: Drug–Drug Interaction01:30

    Drug toxicity: Drug–Drug Interaction

    Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...