TY - JOUR ID - 44521 TI - The Most Common Allergenic Tree Pollen Grains in the Middle East: A Narrative Review JO - Iranian Journal of Medical Sciences JA - IJMS LA - en SN - 0253-0716 AU - Mansouritorghabeh, Hassan AU - Jabbari-Azad, Farahzad AU - Sankian, Mojtaba AU - Varasteh, Abdolreza AU - Farid-Hosseini, Reza AD - Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran AD - Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; and Department of Immununology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran AD - Department of Immununology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; and Immunology Research Center, Bouali Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Y1 - 2019 PY - 2019 VL - 44 IS - 2 SP - 87 EP - 98 KW - Allergens KW - Allergy and Immunology KW - Pollen KW - Middle East DO - 10.30476/ijms.2019.44521 N2 - Allergy is becoming a major disease burden globally. Pollens are considered as the main component of aeroallergens that lead to rhinitis and asthma. Due to the lack of a comprehensive investigation on most allergic pollens of trees in the Middle East, the present study aimed to conduct a comprehensive literature review on this topic. The main goal of the study was to provide a checklist for allergists and patients to easily identify the commonest allergic pollens in their locality. The present review provides a broad range of information on the types and geographic locations of the most common allergic pollens of trees in each studied country. In general, among the 23 studied countries, palm and mesquite trees were the common producers of pollen allergen in the Persian Gulf region. Olive tree is common in Turkey, Palestine, and Israel, whereas sycamore tree is the common allergen pollen in Iran. Considering the uneven geographical distribution of these trees in the world, allergists are unable to accurately select the appropriate extracts for the skin prick test based on the information from the neighboring countries. This scenario becomes more complicated if one adds the imported ornamental trees in the picture. UR - https://ijms.sums.ac.ir/article_44521.html L1 - https://ijms.sums.ac.ir/article_44521_98534a5f10aefd654a3bbf91c1b317e3.pdf ER -