Allergic reactions can be unpredictable, and even very small. Cashew and pistachio nuts are from the same botanical family. Tree nuts can cause a severe and potentially life-threatening allergic reaction (anaphylaxis).
A tree nut allergy is sometimes also referred to as a walnut allergy, cashew nut allergy or pecan allergy. The six most common tree nut allergies are hazelnut, walnut, pecan, almond, pistachio, and cashew. Peptide microarray technology hasn’t been studied in Australia for diagnosing cashew nut or other clinical food allergy. To protect your body, your immune system releases histamine, a chemical that causes the symptoms of an allergic reaction. It is minimally invasive and has diagnosed peanut allergy and severity almost as accurately as an OFC without the risk of a life-threatening reaction.
Peptide microarray technology can be applied innovatively to diagnose food allergy.
Cashew allergy reaction skin#
This underscores the urgent need to develop accurate diagnostic methods for cashew allergy. Check if its a food allergy feeling dizzy or lightheaded itchy skin or a raised rash (hives) swelling of the lips, face and eyes (angioedema) coughing. The scarcity of information on cashew allergy and limitations with diagnosis causes considerable anxiety for affected families and places a burden on health care resources. Skin prick testing is more accessible but has an unacceptably high false positive rate when the history is unclear or is used as a screening tool. It is a costly, time consuming and labour intensive test that needs to be conducted in specialised medical clinics, leading to limited access and long waiting lists across Australia. The “gold standard” for diagnosing cashew allergy, the oral food challenge (OFC), has the potential to cause a life-threatening allergic reaction. Despite this, much is still not known about it, compared to peanut allergy which has been reported extensively.Ĭurrently available tests used to diagnose cashew allergy have significant limitations and have not changed in over three decades. Cashew nut allergy is typically life-long. From the above, you can see that there is a very complex in vitro, immunologic. As with pistachio, pectin exhibits crossreactivity with cashew. Some immunologic reactivity has also been noted for sesamum indicum and buckwheat. Cashew allergy causes more severe reactions than peanut including life threatening severe allergic reactions termed anaphylaxis, potentially resulting in death. Evidence for cross-reactivity between cashew and other foods exists for hazelnut, walnut, and perhaps peanut. Other investigators: A/Prof Alice Lee, Dr Mahila Namasivayam and Dr Kylie-Ann Mallitt (UNSW) Dr Katie Frith, Dr Paul Gray and Ms Betina Altavilla (Sydney Children's Hospital)Ĭashew allergy affects almost 3 in every 100 children in Australia, the same as the proportion of children affected by peanut allergy in our country. 2022 AIFA Food Allergy Research Grant (supported by DBV Technologies) Dr Brynn Wainstein
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