Asparagus (f261)0859
Asparagus is a perennial plant with edible above-ground stems. There are two main types: green, which is tougher, and white, which is more tender and grown in the shade or underground to prevent chlorophyll formation. The test helps identify allergic reactions related to this product.
FEIA (Fluorescence Enzyme Immunoassay), ImmunoCAP (Solid-phase Immunofluorescence) – quantitative determination of sensitization level to asparagus allergen.
- Diagnosis of allergic reactions to asparagus.
- Assessment of sensitization level and risk of allergy development.
- Monitoring therapy effectiveness.
- Evaluation of sensitization level after allergen avoidance.
- Assessment of immune system status.
- Blood should be drawn in the morning on an empty stomach or 4 hours after eating.
- Drinking plain still water is allowed.
- Do not smoke for 30 minutes before the test.
- For children under 1 year – no food 30-40 minutes before the test; for children 1-5 years – 2-3 hours fasting.
Asparagus contains allergenic components Aspa o1 (lipid transfer protein) and Aspa o4 (profilin), as well as the Bet v1 homolog. Two LTP isoforms have been identified that cause positive allergic reactions in patients. The allergen 1,2,3-trithiane-5-carboxylic acid has also been identified, which may be responsible for the initial allergen contact.
Cross-reactivity is possible between different types of asparagus and other plants in the Alliaceae family (onion, garlic, leek). Cross-reactions with other foods containing profilin or the Bet v1 homolog allergen are also possible.