Walnut, f256

The walnut is known as a large California tree that grows in wet or dry soil.
Allergies to pollen from this tree and walnuts have been registered in North America, Europe, Asia, etc.
Walnuts can cause sensitization by ingestion, as well as by inhalation of pollen or dust particles in processing plants.

The main food allergens of walnut belong to the 2S family of albumins and profilins, which are successively called Jug r 1 and Jug r 7. Symptoms of IgE-mediated walnut allergy may include nausea, abdominal pain, vomiting, hives, itching, diarrhea, angioedema, asthma and anaphylaxis. Black walnut syrup does not cause allergies in people with walnut allergies.
Walnuts and pecans belong to the same family Juglandaceae. Due to the cross-reactive allergens of walnuts and pecans, many doctors advise limiting the use of both nuts in the diet.

The determination of specific IgE in human blood to - Walnut, f253, shows the body's reaction to this allergen.

Research method: ImmunoCAP method (Immunofluorescence in the solid phase)

Units of measurement: kU/l

Biomaterial for analysis: venous blood