1/7. anaphylaxis to raw potato.BACKGROUND: Potato allergy has been described rarely, generally in relation to the Oral Allergy syndrome (OAS). Adults with seasonal allergic rhinitis have been reported in whom peeling of raw potatoes causes oculonasal symptoms, wheezing, and contact urticaria. Skin testing with fresh fruits and vegetables has been recommended in cases of OAS, although the sensitivity of commercial potato extract is reportedly equal to that of fresh potato. CASE REPORT: This report describes a 4-year-old with raw potato-induced anaphylaxis. He rapidly developed urticaria, angioedema, respiratory distress, vomiting and diarrhea after biting into a raw potato that was being used for painting in preschool. review of systems is significant for viral-induced wheezing, but no symptoms suggestive of seasonal allergic rhinitis were evident. His mother has a history of seasonal allergic rhinitis and contact urticaria with raw potato. Skin testing to commercial potato extract was negative and skin testing to fresh potato by the prick prick method was markedly positive. Skin testing to birch tree was negative. An open challenge to a small amount of cooked potato was negative. food challenge to raw potato was not considered indicated in this case of immediate anaphylaxis to a single food. CONCLUSIONS: This patient had clinical and skin test reactivity to raw and uncooked potato in the absence of OAS. The patient will be followed for the development of seasonal allergic rhinitis.- - - - - - - - - - ranking = 1keywords = potato (Clic here for more details about this article) |
2/7. Allergic contact urticaria from raw potato.A 19-year-old man exhibited symptoms of immediate urticaria and angioedema related to contact with raw potato. A prick-by-prick test with potato pulp and rub test were positive. Specific IgE to potato was positive (class 2).- - - - - - - - - - ranking = 0.46666666666667keywords = potato (Clic here for more details about this article) |
3/7. Allergy to cooked white potatoes in infants and young children: A cause of severe, chronic allergic disease.BACKGROUND: Cases of allergy to cooked potato in children have been reported, some with immediate and others with late reactions. The clinical effects of chronic allergic reactions to potato and the effectiveness of diet on such reactions have not been described previously. OBJECTIVE: We sought to evaluate the importance of cooked potato as an allergenic food in individual cases of atopy in children. methods: Eight atopic children were selected on the basis of suspicion of allergy to cooked potatoes: all had potato-specific IgE, 2 of 8 had experienced immediate allergic reactions, and 6 of 8 had eczema that improved with a potato-elimination diet (decrease in severity scoring of atopic dermatis [SCORAD] index of >50%). The patients were evaluated by using skin prick tests with homemade cooked and noncooked potato extracts and with a commercial extract and by using IgE immunoblots from SDS-PAGE patterns of potato extract. Seven patients were challenged with cooked potato. The control group consisted of 9 age-matched atopic children, 8 of them with eczema. RESULTS: The mean SCORAD index decreased from 43.3 before to 11.5 after elimination of potato from the diet. Potato CAP values ranged from 3.71 to greater than 100 kUa/L. Potato challenge results were positive in 7 of 7 patients. Skin prick test responses were positive for cooked potato extracts in 7 of 7 patients, for noncooked extracts in 7 of 7 patients, and for the commercial extract in 8 of 8 patients compared with in 0 of 9, 1 of 9, and 1 of 9 subjects in the control group, respectively. During immunoblotting, 8 of 8 patient sera recognized one or more protein bands compared with 0 of 9 control subject sera. CONCLUSION: Allergy to cooked potatoes is a cause of severe allergic disease, with immediate reactions and eczema in some atopic infants and young children.- - - - - - - - - - ranking = 1.0666666666667keywords = potato (Clic here for more details about this article) |
4/7. Is food allergy a cause of acute pancreatitis?We reported two cases of acute recurrent pancreatitis lasting for 8 and 10 years, respectively, and characterized by acute abdominal pain associated with an increased serum level of pancreatic enzymes and in one case transient enlargement of the pancreas on sonography and CT scan. Exocrine and endocrine pancreatic function remained normal. Pain attacks were associated with headache or typical migraine, myalgia, pruritus, and diarrhea. In one case only, the IgE serum level was increased. In both cases, the symptoms were reproduced in the 2 h following the consumption of some particular food and cured for years by the suppression of this food and the use of cromoglycate, but recurred 1 month to 3 years after this treatment was stopped, to be again healed by the same treatment. We suggest that these cases are due to food allergy and that food allergy could be a rare cause of acute recurrent pancreatitis. Responsible foods were beef (twice), milk, potato, fish, and eggs, which is in agreement with the frequency of food allergens in southwestern europe.- - - - - - - - - - ranking = 0.066666666666667keywords = potato (Clic here for more details about this article) |
5/7. Allergy to white potato.Allergy to potato is uncommon, and even more uncommon is allergy to potato pollen. The occurrence of both phenomena in the same patient made it possible to study cross-reactivity patterns of potato antigens. An 11-year-old girl, exclusively breast-fed for her first 4 months, developed anaphylactic symptoms after ingestion of potato at 5 months of age when she was fed potato for the first time. Subsequently, she developed urticaria, angioedema, and respiratory and systemic symptoms on contact with potatoes, ingestion of potatoes, and exposure to cooking potatoes or potato pollen. Three allergenic extracts from potato pulp, peel, and pollen were prepared. Polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate and isoelectrofocusing of the three extracts were performed. IgE-mediated allergy to these extracts was demonstrated by means of immediate skin test reactivity, positive passive transfer, RAST, RAST inhibition, and leukocyte histamine release. sodium dodecyl sulfate-polyacrylamide gel electrophoresis of the pulp extract followed by electroblotting and autoradiography demonstrated specific IgE antibodies directed against several proteins ranging from 14,000 to 40,000 daltons.- - - - - - - - - - ranking = 0.93333333333333keywords = potato (Clic here for more details about this article) |
6/7. Early sensitization to airborne allergens.We report the case of a 7-month-old child with failure to thrive. celiac disease was suspected because of highly raised antigliadin IgA and IgG antibodies and subtotal villous atrophy. In peripheral blood mononuclear-cells cellular proliferation was found in response to birch pollen, rye pollen and hazelnut extract. Born in June 1992 the infant had not yet experienced a birch pollen season. He had been fed with birch pollen allergy-associated carrot, apple and potato beginning at 6 weeks of life. In the serum, specific IgG, IgM and IgA to birch pollen and profilin, rye pollen and hazelnut antigens were detectable, indicating possible in utero sensitization or T cell cross-reactivity due to early sensitization with related food antigens.- - - - - - - - - - ranking = 0.066666666666667keywords = potato (Clic here for more details about this article) |
7/7. Hot dog vapor-induced status asthmaticus.BACKGROUND: Asthma induced by the inhalation of food vapors is unusual and indicative of extreme allergy. Identification of the specific cause and subsequent avoidance is essential. methods: We report a patient with asthma who had status asthmaticus following inhalation of boiling hot dog vapors. Prick skin tests were performed to various ingredients of the offending hot dog including chicken, pork, potato, and the aeroallergens. RESULTS: Prick skin tests reacted strongly to chicken and mildly to pork and potato. There was no reaction to aeroallergens. Our patient has not had any acute asthma after avoiding eating and exposure to chicken and hot dog vapors. CONCLUSIONS: Exquisite allergy to chicken was responsible for acute asthma.- - - - - - - - - - ranking = 0.13333333333333keywords = potato (Clic here for more details about this article) |