A case of anaphylaxis caused by the health food chitosan

Yasuko Kato, Akiko Yagami, Kayoko Matsunaga

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Chitosan is a linear polysaccharide with about 10(5)-10(6) molecular weight existing in cell walls of zygomycetes. Chitosan decreases serum neutral fat and cholesterol levels and has dietary fiber action, and many products have recently been sold as health foods. Here, we report a case of immediate-type allergy for chitosan-containing health food with a review of the literature. The patient was a 47-year-old female person who developed systemic urticaria and difficulty in breathing after oral ingestion of chitosan. Since skin tests (prick test and scratch patch test) were positive, the test was done using another commercial chitosan, and was positive. The patient was diagnosed as having chitosan-induced immediately-type allergy, and was instructed to avoid ingestion of chitosan. The patient has developed no symptom thereafter. Regarding allergic reactions to chitin and chitosan, contact dermatitis induced by chitosan-containing cream has been reported from France and Portugal, but to our knowledge, there has been no report of immediate-type allergic reactions. Chitosan is a polysaccharide, not protein, but may have functioned as a food allergen because of its molecular weight and general properties.

Original languageEnglish
Pages (from-to)1427-1429
Number of pages3
JournalArerug¿ = [Allergy].
Volume54
Issue number12
Publication statusPublished - 01-12-2005

Fingerprint

Chitosan
Anaphylaxis
Food
Health
Hypersensitivity
Polysaccharides
Eating
Molecular Weight
Patch Tests
Chitin
Portugal
Contact Dermatitis
Urticaria
Dietary Fiber
Skin Tests
Allergens
Cell Wall
France
Respiration
Fats

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy

Cite this

Kato, Yasuko ; Yagami, Akiko ; Matsunaga, Kayoko. / A case of anaphylaxis caused by the health food chitosan. In: Arerug¿ = [Allergy]. 2005 ; Vol. 54, No. 12. pp. 1427-1429.
@article{7f0c5c8f7ca246e8931812ddde8d0672,
title = "A case of anaphylaxis caused by the health food chitosan",
abstract = "Chitosan is a linear polysaccharide with about 10(5)-10(6) molecular weight existing in cell walls of zygomycetes. Chitosan decreases serum neutral fat and cholesterol levels and has dietary fiber action, and many products have recently been sold as health foods. Here, we report a case of immediate-type allergy for chitosan-containing health food with a review of the literature. The patient was a 47-year-old female person who developed systemic urticaria and difficulty in breathing after oral ingestion of chitosan. Since skin tests (prick test and scratch patch test) were positive, the test was done using another commercial chitosan, and was positive. The patient was diagnosed as having chitosan-induced immediately-type allergy, and was instructed to avoid ingestion of chitosan. The patient has developed no symptom thereafter. Regarding allergic reactions to chitin and chitosan, contact dermatitis induced by chitosan-containing cream has been reported from France and Portugal, but to our knowledge, there has been no report of immediate-type allergic reactions. Chitosan is a polysaccharide, not protein, but may have functioned as a food allergen because of its molecular weight and general properties.",
author = "Yasuko Kato and Akiko Yagami and Kayoko Matsunaga",
year = "2005",
month = "12",
day = "1",
language = "English",
volume = "54",
pages = "1427--1429",
journal = "Japanese Journal of Allergology",
issn = "0021-4884",
publisher = "Japanese Society of Allergology",
number = "12",

}

Kato, Y, Yagami, A & Matsunaga, K 2005, 'A case of anaphylaxis caused by the health food chitosan', Arerug¿ = [Allergy]., vol. 54, no. 12, pp. 1427-1429.

A case of anaphylaxis caused by the health food chitosan. / Kato, Yasuko; Yagami, Akiko; Matsunaga, Kayoko.

In: Arerug¿ = [Allergy]., Vol. 54, No. 12, 01.12.2005, p. 1427-1429.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A case of anaphylaxis caused by the health food chitosan

AU - Kato, Yasuko

AU - Yagami, Akiko

AU - Matsunaga, Kayoko

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Chitosan is a linear polysaccharide with about 10(5)-10(6) molecular weight existing in cell walls of zygomycetes. Chitosan decreases serum neutral fat and cholesterol levels and has dietary fiber action, and many products have recently been sold as health foods. Here, we report a case of immediate-type allergy for chitosan-containing health food with a review of the literature. The patient was a 47-year-old female person who developed systemic urticaria and difficulty in breathing after oral ingestion of chitosan. Since skin tests (prick test and scratch patch test) were positive, the test was done using another commercial chitosan, and was positive. The patient was diagnosed as having chitosan-induced immediately-type allergy, and was instructed to avoid ingestion of chitosan. The patient has developed no symptom thereafter. Regarding allergic reactions to chitin and chitosan, contact dermatitis induced by chitosan-containing cream has been reported from France and Portugal, but to our knowledge, there has been no report of immediate-type allergic reactions. Chitosan is a polysaccharide, not protein, but may have functioned as a food allergen because of its molecular weight and general properties.

AB - Chitosan is a linear polysaccharide with about 10(5)-10(6) molecular weight existing in cell walls of zygomycetes. Chitosan decreases serum neutral fat and cholesterol levels and has dietary fiber action, and many products have recently been sold as health foods. Here, we report a case of immediate-type allergy for chitosan-containing health food with a review of the literature. The patient was a 47-year-old female person who developed systemic urticaria and difficulty in breathing after oral ingestion of chitosan. Since skin tests (prick test and scratch patch test) were positive, the test was done using another commercial chitosan, and was positive. The patient was diagnosed as having chitosan-induced immediately-type allergy, and was instructed to avoid ingestion of chitosan. The patient has developed no symptom thereafter. Regarding allergic reactions to chitin and chitosan, contact dermatitis induced by chitosan-containing cream has been reported from France and Portugal, but to our knowledge, there has been no report of immediate-type allergic reactions. Chitosan is a polysaccharide, not protein, but may have functioned as a food allergen because of its molecular weight and general properties.

UR - http://www.scopus.com/inward/record.url?scp=33644836828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33644836828&partnerID=8YFLogxK

M3 - Article

C2 - 16407681

AN - SCOPUS:33644836828

VL - 54

SP - 1427

EP - 1429

JO - Japanese Journal of Allergology

JF - Japanese Journal of Allergology

SN - 0021-4884

IS - 12

ER -