• 제목/요약/키워드: Food protein-induced enterocolitis syndrome

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Is This Symptom Even a Food Allergy?: Clinical Types of Food Protein-induced Enterocolitis Syndrome

  • Hwang, Jin-Bok
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제17권2호
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    • pp.74-79
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    • 2014
  • Food protein-induced enterocolitis syndrome (FPIES) is an under-recognized non-IgE-mediated gastrointestinal food allergy. The diagnosis of FPIES is based on clinical history, sequential symptoms and the timing, after excluding other possible causes. It is definitively diagnosed by an oral food challenge test. Unfortunately, the diagnosis of FPIES is frequently delayed because of non-specific symptoms and insufficient definitive diagnostic biomarkers. FPIES is not well recognized by clinicians; the affected infants are often mismanaged as having viral gastroenteritis, food poisoning, sepsis, or a surgical disease. Familiarity with the clinical features of FPIES and awareness of the indexes of suspicion for FPIES are important to diagnose FPIES. Understanding the recently defined clinical terms and types of FPIES is mandatory to suspect and correctly diagnose FPIES. The aim of this review is to provide a case-driven presentation as a guide of how to recognize the clinical features of FPIES to improve diagnosis and management of patients with FPIES.

식품 단백질 유발성 장염 증후군: 임상적 접근과 병태생리의 최신 지견 (Food Protein-induced Enterocolitis Syndrome: an Update on Clinical Approaches and Its Pathophysiology)

  • 황진복
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제10권2호
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    • pp.117-128
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    • 2007
  • Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE mediated hypersensitivity disorder, which is associated with mainly gastrointestinal symptoms and has a delayed onset. The vomiting and/or diarrheal symptoms of FPIES typically begin in the first month of life in association with a failure to thrive, metabolic acidosis, and shock. Therefore, the differential diagnosis of FPIES and neonatal or infantile sepsis-like illnesses or gastroenteritis is difficult. The early recognition of indexes of suspicion for FPIES may help in the diagnosis and treatment of this disorder. The diagnosis of FPIES is generally made through clinical practice and food-specific IgE test findings are typically negative in this condition. Therefore, oral cow's milk challenge (OCC) remains the valid diagnostic standard for FPIES. An investigation of positive OCC outcomes helps to find out a diagnostic algorithm of criteria of a positive challenge in FPIES. Moreover, it has not been clearly determined in infantile FPIES when $1^{st}$ follow up-oral food challenge (FU-OFC) should be performed, with what kind of food protein (e.g., cow's milk, soy), and how much protein should be administered. Hence, to prevent the risk of inappropriate FU-OFC or accidental exposure and achieve appropriate dietary management, it is necessary to identify tolerance rates to major foods under the careful follow up of infantile FPIES patients. On the other hand, small intestinal enteropathy with villous atrophy is observed in FPIES and this enteropathy seems to be in part induced by both of epithelial apoptosis and intercellular junctional complex breakdown. The purpose of this report is to introduce an update on diagnostic and therapeutic approaches in FPIES and suggest the possible histopathological evidences in this disorder.

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우유 단백질 유발성 장염 증후군의 병리 기전으로 세포 자멸사와 TNF-${\alpha}$, TRAIL receptor 1 (DR4)의 발현 증가 (Apoptosis and upregulation of TNF-${\alpha}$ and TRAIL receptor 1 (DR4) in the pathogenesis of food protein-induced enterocolitis syndrome)

  • 황진복;김상표;강유나;이성룡;서성일;권택규
    • Clinical and Experimental Pediatrics
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    • 제53권4호
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    • pp.525-531
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    • 2010
  • 목 적: 융모 위축을 보이는 FPIES 환자의 소장 점막에는 TNF-${\alpha}$의 발현이 증가한다. TNF-${\alpha}$는 상피 세포의 세포 자렴사를 유발하는 것으로 알려져 있다. 저자들은 FPIES 병리생리의 특성을 알아보고자 십이지장 점막 조직에서 TNF family와 TNF-수용체 family의 세포 자멸사를 연구하였다. 방 법: 표준화된 경구 유발 시험을 통하여 FPIES로 진단된 15례의 환자와 5례의 대조군을 대상으로 연구하였다. 세포 자멸사를 확인하기 위하여 terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) 염색을 시행하였다. 세포 자멸의 기전을 알아 보기 위해 TNF family의 TNF-${\alpha}$, Fas ligand (FasL)와 TNF-수용체 family의 TNF-related apoptosis-including ligand (TRAIL) receptor 1 (DR4), TRAIL receptor 2 (DR5), Fas를 면역조직화학으로 염색하였다. 결 과: $TUNEL^+$ 세포는 대조군에 비하여 FPIES 환자군의 십이지장 점막에서 의미 있게 높게 발현하였다($P$=0.043). TNF-${\alpha}$ ($P$=0.0001)와 DR4 ($P$=0.003)도 대조군에 비하여 FPIES군에서 의미 있게 높게 발현하였다. FasL, Fas, DR5의 발현은 두 군 모두에서 낮았으며, 두 군간에 의미 있는 차이를 보이지도 않았다. 결 론: FPIES의 병리생리는 세포 자멸사에 의하여 발생하며, TNF-${\alpha}$의 발현과 DR4 경로가 세포 자멸사에서 중요한 역할을 하는 것으로 추정된다.