ALLERGY RESOURCES

COMPREHENSIVE ALLERGY RESOURCES FOR EVERYONE - THE TOP 14 ALLERGENS AND BEYOND

COMPREHENSIVE ALLERGY RESOURCES FOR EVERYONE - THE TOP 14 ALLERGENS AND BEYOND

HAZEL POLLEN ALLERGY


Key Allergens

There are 3 airway allergens associated with hazel tree pollen, Cor a 1, Cor a 6 and Cor a 10. There are 8 allergens associated with eating hazelnuts, you can find more information on the Hazelnut page.

Cor a 1 is a Bet v 1 allergen, which means people suffering from this particular allergen will also be allergic to the pollen from birch trees.

Cor a 6 is an isoflavone reductase protein and Cor a 10 is a luminal binding protein.

Hazel pollen occurs in the UK between January and April, peaking in February. This varies in different countries. It is considered to have medium to high allergenicity.

Associated Syndromes

An allergy to hazel pollen is strongly associated with seasonal allergic rhinitis (hayfever).

An hazel pollen allergy is also linked to asthma, rhinoconjunctivitis and atopic dermatitis.

As it contains a Bet v 1 protein it is strongly linked to oral allergy symptoms and Pollen Food Allergy Syndrome - this is where eating raw fruits and vegetables can illicit an allergic reaction as they contain similarly shaped proteins.

Cross Reactivity

There is a lot of cross reactivity between tree pollens, alder, birch, hazel, chestnut, beech and hornbeam pollens all have very similar shaped proteins (Bet v 1-like).

The only other plant pollens which contain isoflavone reductase proteins are olive trees. They can also be found in food such as carrot, pear and wheat.

Resources

Websites

Allergy UK - Allergic rhinitis

Allergen Encyclopedia - Hazel Pollen

Worcester Pollen Forecast

Alliance Allergy - Pollen Allergies UK

Allergy UK - Managing your asthma and your allergic rhinitis throughout the seasons


Articles and Journals

Simplified AIT for allergy to several tree pollens-Arguments from the immune outcome analyses following treatment with SQ tree SLIT-tablet, 2021

Comparative proteomics of common allergenic tree pollens of birch, alder, and hazel, 2020

Is allergy immunotherapy with birch sufficient to treat patients allergic to pollen of tree species of the birch homologous group? 2020

Birch pollen allergy in Europe, 2019

Identification of a natural ligand of the hazel allergen Cor a 1, 2019

Panallergens and their impact on the allergic patient, 2010

Molecular cloning and characterization of hazel pollen protein (70 kD) as a luminal binding protein (BiP): a novel cross-reactive plant allergen, 2003

Identification of hazelnut major allergens in sensitive patients with positive double-blind, placebo-controlled food challenge results, 2002



Let me know if you found any of these interesting or useful. If you spot an article or research that you think is interesting you can message me or tag me on Facebook or Twitter - links at the bottom of the page.

FURTHER READING RECOMMENDATIONS

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