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Variation of alpha 1-antitrypsin glycoprotein microheterogeneity in hepatic postresuscitation disease
K Heyne1, F K Tegtmeyer, S Weidinger
1Klinik für Pädiatrie, Medizinische Universität zu Lübeck, Federal Republic of Germany.
Abstract:
Microheterogeneity of the glycoprotein alpha 1-antitrypsin has been investigated sequentially by high resolution isoelectric focusing in a child with the proteinase inhibitor MS phenotype after near-drowning. A band-splitting with additional cathodal fractions exhibited migration from the most cathodic to the anodic positions of the glycoprotein isoforms in the course of post-resuscitation disease. The pattern may reflect the time- and stage-dependent hypoxic and post-hypoxic effects on hepatocellular metabolic zonation.
Insights
Alpha 1-antitrypsin glycoprotein microheterogeneity was studied in a child after near-drowning. Changes in proteinase inhibitor MS phenotype isoforms suggest hypoxic effects on liver function during recovery.
Area of Science:
- Biochemistry
- Clinical Chemistry
- Proteomics
Background:
- Alpha 1-antitrypsin (AAT) is a key serum glycoprotein.
- AAT microheterogeneity reflects post-translational modifications and physiological states.
- Near-drowning can lead to hypoxic injury affecting cellular metabolism.