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Related Concept Videos

Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

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In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
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Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

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Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight,...
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Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

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In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
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Magnetic Field due to Moving Charges01:23

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A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
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Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

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Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
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Conservation of Mass in Moving, Nondeforming Control Volume01:14

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Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
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Related Experiment Video

Updated: Jan 24, 2026

Murine Model of Leukemia Relapse to Induction Chemotherapy for Acute Lymphoblastic Leukemia
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Pediatric leukemia: Moving toward more accurate models.

Thomas Milan1, Hera Canaj1, Chloe Villeneuve1

  • 1Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada.

Experimental Hematology
|June 3, 2019
PubMed
Summary

This review discusses experimental models for studying leukemia, a complex genetic blood cancer. Patient-derived xenografts offer a more biologically relevant approach compared to cell lines or mouse models.

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Area of Science:

  • Hematology
  • Cancer Biology
  • Genetics

Background:

  • Leukemia is a complex genetic disease affecting hematopoietic cells.
  • Genomic data reveal differences in adult and pediatric leukemia mutational profiles.
  • Developing biologically relevant experimental models is crucial for understanding leukemogenesis.

Purpose of the Study:

  • To review and compare current experimental models for leukemia research.
  • To discuss the advantages and limitations of various leukemia models.
  • To highlight the importance of patient-derived xenografts (PDXs) for studying human leukemia.

Main Methods:

  • Review of existing literature on leukemia experimental models.
  • Comparative analysis of cell lines, murine models, and PDXs.
  • Discussion of functional genomics in leukemogenesis.

Main Results:

  • Leukemic cell lines are tractable but often lack biological relevance.
  • Murine models provide insights but do not fully replicate human leukemia.
  • Patient-derived xenografts offer a more comprehensive and relevant model for in vivo studies.

Conclusions:

  • No single model perfectly recapitulates human leukemia.
  • PDXs represent a significant advancement in modeling human leukemia.
  • Understanding model limitations is key to advancing leukemia research.