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Related Experiment Video

Updated: Jun 24, 2026

Inducing Acute Liver Injury in Rats via Carbon Tetrachloride (CCl4) Exposure Through an Orogastric Tube

Inducing Acute Liver Injury in Rats via Carbon Tetrachloride (CCl₄) Exposure Through an Orogastric Tube

Published on: April 28, 2020

[Elevated transaminases - what to do if everything was done?].

P M Lepper¹, J-F Dufour

¹Klinik für Allgemeine Innere Medizin, Universitätsspital Bern (Inselspital), Bern, Germany.

|March 18, 2009

Summary

Elevated liver enzymes like ALAT and ASAT can indicate cell damage. This study offers a diagnostic algorithm for persistent elevations, focusing on often overlooked issues in liver disease workup.

Area of Science:

Biochemistry
Clinical Medicine
Diagnostic Medicine

Background:

Transaminases, gamma-GT, and alkaline phosphatase are commonly called liver enzymes but are present in many organs.
Elevated alanine aminotransferase (ALAT) and aspartate aminotransferase (ASAT) suggest compromised cell membrane integrity.
While ALAT is primarily liver-specific, ASAT is also found in cardiac and skeletal muscle.

Purpose of the Study:

To address frequently missed challenges in diagnosing elevated liver enzymes.
To present a structured diagnostic algorithm for evaluating persistent elevations.

Main Methods:

Review of existing literature on liver enzyme elevation.
Development of a diagnostic pathway for persistent abnormal liver enzyme levels.

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Published on: March 7, 2013

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Last Updated: Jun 24, 2026

Inducing Acute Liver Injury in Rats via Carbon Tetrachloride (CCl4) Exposure Through an Orogastric Tube

Inducing Acute Liver Injury in Rats via Carbon Tetrachloride (CCl₄) Exposure Through an Orogastric Tube

Published on: April 28, 2020

Surgical Procedures for a Rat Model of Partial Orthotopic Liver Transplantation with Hepatic Arterial Reconstruction

Surgical Procedures for a Rat Model of Partial Orthotopic Liver Transplantation with Hepatic Arterial Reconstruction

Published on: March 7, 2013

Emphasis on differentiating liver-specific from non-liver-specific enzyme elevations.

Main Results:

Persistent elevation of liver enzymes necessitates further investigation beyond initial assessment.
ASAT elevation can originate from non-hepatic sources like muscle tissue.
A systematic approach is crucial for accurate diagnosis and management.

Conclusions:

Mild elevations of liver enzymes warrant re-evaluation.
Persistent or suspicious elevations require a specific diagnostic workup.
The proposed algorithm aids in identifying the cause of elevated liver enzymes, particularly in cases of suspected liver disease.