CRYPTOGENIC INCREASED ACTIVITY OF ASPARTATE AMINOTRANSFERASE: A CASE REPORT

We present a case of cryptogenic elevation of aspartate aminotransferase (AST) activity. AST is an enzyme found in many tissues, so the serum activity of this enzyme may be elevated in various diseases. If there is an isolated increase in AST, we are therefore faced with a diagnostic challenge and m...

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Bibliographic Details
Main Authors: Tjaša Žagar (Author), Rok Orel (Author)
Format: Book
Published: The Society for Children with Metabolic Disorders, 2021-03-01T00:00:00Z.
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Summary:We present a case of cryptogenic elevation of aspartate aminotransferase (AST) activity. AST is an enzyme found in many tissues, so the serum activity of this enzyme may be elevated in various diseases. If there is an isolated increase in AST, we are therefore faced with a diagnostic challenge and many diseases must be ruled out. When most diseases have been ruled out with a high probability, it is referred to as a cryptogenic increase in AST activity. Some studies have shown that part of this increase can be explained by macroenzymes, more specifically by macro - AST. In the case presented, we also suspected that the increased AST activity was due to macro - AST. As the determination of macro - AST is not possible in the laboratory of the University Clinical Centre Ljubljana, it has not been possible to confirm or refute the diagnosis.
Item Description:1318-4423
2712-3960
10.38031/slovpediatr-2021-1-07en