A Case of Late-onset Anaphylaxis Caused by Natto

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  • TAKAI Sayaka
    Department of Dermatology, Graduate School of Medicine, University of the Ryukyus Department of Dermatology, National Defense Medical College
  • YASUMURA Ryo
    Department of Dermatology, Graduate School of Medicine, University of the Ryukyus
  • YAMAGUCHI Sayaka
    Department of Dermatology, Graduate School of Medicine, University of the Ryukyus
  • YAMAMOTO Yu-ichi
    Department of Dermatology, Graduate School of Medicine, University of the Ryukyus
  • TAKAHASHI Kenzo
    Department of Dermatology, Graduate School of Medicine, University of the Ryukyus

Bibliographic Information

Other Title
  • 納豆による遅発性アナフィラキシーの 1 例
  • 症例 納豆による遅発性アナフィラキシーの1例
  • ショウレイ ナットウ ニ ヨル チハツセイ アナフィラキシー ノ 1レイ

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Abstract

<p>A 29-year-old man presented with wheals, nausea, and vomiting, and he was diagnosed with anaphylaxis by a nearby clinic. Thereafter, he suffered from five anaphylactic episodes with symptoms including abdominal cramps, wheals, nausea,vomiting, and decreased blood pressure. Since he had ingested“natto (fermented soybeans)”the day before each of the fourth and fifth anaphylactic episodes, late-onset anaphylaxis against natto was suspected. A skin prick-to-prick test for natto was positive, and after an oral challenge with natto, he developed pharyngeal discomfort and wheals accompanied by a severe decrease in blood pressure six hours after ingestion. Therefore, this case was diagnosed as anaphylaxis due to natto. No anaphylactic or allergic symptoms have occurred after he stopped eating natto.</p>

Journal

  • Nishi Nihon Hifuka

    Nishi Nihon Hifuka 79 (5), 455-458, 2017

    Western Division of Japanese Dermatological Association

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