Flashcards in Food Allergies Deck (19)
What type of food allergies can occur?
Type 1 to Type 4 (all)
What 8 foods are responsible for the majority of food-allergic reactions?
What causes food intolerance?
Problem with digestive system
What causes food allergy?
Problem with immune system
What characterizes food intolerance?
Difficulty digesting food
What characterizes food allergies?
Immunologic reaction to a food
Symptoms of food intolerance:
Symptoms of food allergies:
Severe life-threatening range of symptoms
What is Crohn disease?
Immune response to gut microorganisms leading to inflammation; increased risk of colorectal cancer
What is irritable bowel syndrome?
Chronic condition affecting muscle contractions of the colon; no intestinal inflammation does not cause change in bowel tissue; no increase risk of colorectal cancer
IgE-mediated food allergies are elicited by what?
Strong Th2 responses by certain food antigens
What is a mixture of Type I and Type IV hypersensitivity?
Allergic eosinophilic esophagitis/gastritis/gastroenteritis
What are T cell mediated Type IV hypersensitivities?
Food protein induced enterocolitis/proctocolitis/enteropathy
Food protein induced enterocolitis:
Infants days to 1 year old
Food protein induced proctocolitis:
Mild form of protein induced enterocolitis
Infants days to 6 months
Food protein induced enteropathy:
Early in life 2-24 months old
Symptoms of celiac disease?
How is celiac disease diagnosed?
Biopsy (second portion of duodenum or proximal jejunum)
Serologic testing for IgA antibodies specific for tTG