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Related Concept Videos

Therapeutic Drug Monitoring: Affecting Factors01:29

Therapeutic Drug Monitoring: Affecting Factors

Therapeutic Drug Monitoring (TDM) is the clinical practice of measuring specific drug levels in a patient's blood or body tissues to manage and optimize therapy. TDM is crucial for drugs with narrow therapeutic windows, like warfarin and phenytoin, where incorrect doses can lead to treatment failure or severe side effects. This monitoring ensures the dosage administered is within a safe and effective range. The factors affecting therapeutic drug monitoring include:Patient-Specific Factors:a.
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents01:29

Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel Disease...
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase01:27

Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase

Phase II biotransformation reactions are essential for detoxifying and eliminating xenobiotics, including many pharmaceutical compounds. These reactions typically involve conjugation, the covalent attachment of polar endogenous groups such as glucuronic acid, sulfate, methyl, or acetyl moieties to functional groups introduced during Phase I metabolism. The resulting conjugates are more water-soluble, enabling efficient renal or biliary excretion.The major classes of Phase II enzymes include...
Disorders of Erythrocytes01:27

Disorders of Erythrocytes

Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Bone Marrow Sampling and Transplants01:22

Bone Marrow Sampling and Transplants

Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
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Antiprotozoal Agents01:21

Antiprotozoal Agents

Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...

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Related Experiment Video

Updated: Jun 16, 2026

Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver
09:02

Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver

Published on: July 31, 2016

[Pancytopenia after methotrexate treatment].

Krzysztof Zak1, Andrzej Prystupa, Andrzej Dybała

  • 1Katedra i Klinika Chorób Wewnetrznych Uniwersytetu Medycznego w Lublinie, Samodzielny Szpital Kliniczny Nr 1 w Lublinie.

Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|February 10, 2010
PubMed
Summary

Methotrexate (MTX) can cause severe side effects. A patient developed acute liver failure and bone marrow damage due to non-compliant MTX therapy, leading to death.

Related Experiment Videos

Last Updated: Jun 16, 2026

Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver
09:02

Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver

Published on: July 31, 2016

Area of Science:

  • Rheumatology
  • Toxicology
  • Hepatology

Background:

  • Methotrexate (MTX) is a widely used medication for various conditions, including inflammatory joint diseases.
  • MTX therapy is associated with a spectrum of potential adverse effects, ranging in severity.
  • Patient adherence to prescribed treatment regimens is crucial for therapeutic efficacy and safety.

Observation:

  • A 76-year-old female patient was undergoing outpatient treatment with methotrexate for vertebral joint disease of unclear origin.
  • The patient's therapeutic approach deviated from the recommended medical guidelines.
  • The patient subsequently presented with acute liver failure and signs of bone marrow suppression.

Findings:

  • Non-adherence to methotrexate treatment recommendations precipitated severe adverse events.
  • The patient experienced critical complications including acute liver failure and bone marrow damage.
  • Despite aggressive medical intervention and hospitalization, the patient's condition proved fatal.

Implications:

  • This case highlights the critical importance of patient compliance in methotrexate therapy.
  • Physicians must carefully monitor patients for methotrexate toxicity, especially in cases of non-adherence.
  • Understanding the risks associated with methotrexate is vital for managing patients with joint diseases.