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Screening for antibodies associated with halothane hepatitis.

K L Hastings¹, C Thomas, A K Hubbard

¹Department of Anesthesiology, University of Arizona, College of Medicine, Tucson 85724.

British Journal of Anaesthesia

|December 1, 1991

Summary

Detecting antibodies to trifluoroacetylated proteins aids halothane hepatitis (HH) diagnosis. Combining two ELISA methods identified HH-associated antibodies in 92% of patient sera, improving diagnostic accuracy.

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Area of Science:

Hepatology
Immunology
Clinical Chemistry

Background:

Halothane hepatitis (HH) is a severe liver injury potentially linked to immune responses.
Identifying specific biomarkers can improve the diagnosis of halothane hepatitis.

Purpose of the Study:

To evaluate the diagnostic utility of anti-trifluoroacetylated protein antibodies (anti-TFA) in halothane hepatitis.
To compare different ELISA methods for detecting anti-TFA antibodies in HH patients.

Main Methods:

Enzyme-linked immunosorbent assay (ELISA) using trifluoroacetylated rabbit serum albumin (TFA-RSA) as antigen.
ELISA using liver microsomal protein from halothane-treated rabbits, with and without absorption.
ELISA employing N-epsilon-trifluoroacetyl-1-lysine for antibody blocking.

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Main Results:

The TFA-RSA ELISA detected anti-TFA antibodies in 67% of HH patient sera.
Liver microsomal protein ELISA detected antibodies in 33% (unabsorbed) and 42% (absorbed) of sera.
Combining TFA-RSA ELISA with TFA-lysine blocking ELISA yielded a 92% positive detection rate for HH-associated antibodies.

Conclusions:

The TFA-RSA ELISA is a sensitive method for detecting HH-associated antibodies.
A combination of ELISA methods significantly enhances the detection rate of antibodies relevant to halothane hepatitis.
These findings suggest anti-TFA antibodies are valuable serological markers for diagnosing halothane hepatitis.