The role of lipid transfer proteins in the almond tree and almond fruit as contact and airborne allergens.

نویسندگان

  • S Garrido-Fernández
  • B E Garcia
  • M L Sanz
  • S Ariz
  • Al Tabar
چکیده

The almond, which is a member of the Rosaceae family, is the fruit of the almond tree (Prunus dulcis). It has a hard endocarp that contains a seed covered by a rough, brownish skin. Unlike other prunoid fruits, which have an edible mesocarp and an outer skin known as the epicarp, the almond fruit has an epicarp and a mesocarp that are diffi cult to separate and have no nutritional or commercial value (Figure 1). We report the case of a 17-year-old atopic patient referred for consultation due to eyelid angioedema and rash in exposed areas related to exposure to or contact with almond tree leaves and almond fruit epicarp/mesocarp on the family farm. Symptoms appeared when he touched or was near almond tree leaves and/or epicarp/mesocarp. He reported good tolerance to contact with and ingestion of both peeled and unpeeled almonds. He also had a history of oral pruritus following the ingestion of unpeeled peach and rhinoconjunctivitis due to house dust mite and cat dander. Almond fruit extracts (seed, skin, endocarp, and epicarp/ mesocarp) (20% w/v) and almond tree leaf extracts derived from raw material were prepared for in vitro analysis and glycerinated at 50% for in vivo analysis. Commercial extracts of almond seed and peach skin and pulp (Bial Arístegui, Bilbao, Spain) were also used for in vitro analysis. Skin prick tests (SPTs) performed with airborne allergens, food, fruits (including peach skin and pulp), nPru p 3, almond leaf, seed, skin, endocarp, and epicarp/mesocarp were positive for peach skin, nPru p 3, almond leaf and epicarp/mesocarp, among others. They were negative for the 3 types of almond 1. Almond Tree Leaf 2. Epicarp-Mesocarp 3. Almond Skin 4. Seed or Almond 1

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عنوان ژورنال:
  • Journal of investigational allergology & clinical immunology

دوره 19 1  شماره 

صفحات  -

تاریخ انتشار 2009