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Kuang R, Levinthal DJ, Ghaffari AA, Del Aguila de Rivers CR, Tansel A, Binion DG. Nightshade Vegetables: A Dietary Trigger for Worsening Inflammatory Bowel Disease and Irritable Bowel Syndrome? Dig Dis Sci 2023:10.1007/s10620-023-07955-9. [PMID: 37202602 DOI: 10.1007/s10620-023-07955-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/24/2023] [Indexed: 05/20/2023]
Abstract
The Solanaceae family of plants, commonly known as Nightshade vegetables or Nightshades, contains a diverse range of crops of over 2000 members with significant culinary, economic, and cultural importance. Familiar edible Nightshades include tomatoes, peppers, eggplants, and white potatoes. Many pharmacologically active compounds used in traditional medicine, including atropine and hyoscyamine, are derived from Nightshades. In addition to these beneficial pharmacologic agents, Nightshade-derived glycoalkaloid compounds, a key defense mechanism against predation, have been shown to disrupt intestinal epithelium and to potentially activate mast cells in the gut mucosa, leading to adverse symptoms in humans. There is a new appreciation that mast cell activation is an allergic inflammatory mechanism contributing both to pain in irritable bowel syndrome (IBS) and to gut inflammation in inflammatory bowel disease (IBD). Given their ubiquity in Western diets and their shared glycoalkaloid active compounds, edible Nightshades are attracting new interest as a potential trigger for worsening gut symptoms in functional and inflammatory gastrointestinal disorders. Here, we review the limited existing literature on the adverse effects of Nightshade consumption, including the effects of Nightshade-derived glycoalkaloids on IBD gut inflammation, and the under-recognized contribution of Nightshades to food allergies and allergic cross-reactivity. We then highlight new evidence on the contributions of mast cell activation to GI disorder pathogenesis, including potential linkages between Nightshade antigens, intestinal mast cells, and GI dysfunction in IBS and IBD.
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Affiliation(s)
- Rebecca Kuang
- UPMC Department of Internal Medicine, Pittsburgh, PA, USA
| | - David J Levinthal
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Presbyterian Hospital, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Amir A Ghaffari
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Presbyterian Hospital, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Claudia Ramos Del Aguila de Rivers
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Presbyterian Hospital, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Aylin Tansel
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Presbyterian Hospital, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - David G Binion
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Presbyterian Hospital, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
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Ansari IT, Mu T. A murine model of wheat versus potato allergy: Patatin and 53kDa protein are the potential allergen from potato. Mol Immunol 2018; 101:284-293. [DOI: 10.1016/j.molimm.2018.07.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 04/17/2018] [Accepted: 07/07/2018] [Indexed: 11/28/2022]
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Steiß JO, Simon A, Langner C. Allergic reaction to potatoes representing a rare cause of a type-I-food allergy. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40629-015-0059-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Allergische Reaktion auf Kartoffeln als seltene Ursache einer Typ-1-Nahrungsmittelallergie. ALLERGO JOURNAL 2015. [DOI: 10.1007/s15007-015-0849-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
BACKGROUND Allergy to heat stable potato proteins can cause severe allergic disease in children. OBJECTIVE To study diagnostic criteria for allergy to cooked potatoes and to describe its clinical characteristics and natural history. METHODS Thirty-six children, aged 4-36 months, with atopic symptoms and having a positive potato-CAP and/or skin prick test (SPT) were included. Potato allergy was documented by means of provocation, or elimination and reintroduction or an unequivocal clinical history. Potato-CAP and SPT with a commercial extract were evaluated for diagnostic performance. RESULTS Presenting symptoms in children with proven potato allergy (n = 17) were eczema (16 of 17), gastrointestinal complaints (eight of 17), urticaria and/or angioedema (five of 17), wheezing/rhinitis (three of 17) and anaphylaxis (two of 17). Fifteen children had previously diagnosed cow's milk protein allergy and were egg-sensitized. Potato-CAP at cut-off >2 kU/l provided a 100% sensitivity and a 62.5% specificity for diagnosis of potato allergy, while a SPT score >/= 3 had a 100% sensitivity and a score >/= 4 had a 100% specificity. Tolerance to cooked potato was achieved in 80% of subjects at age 16-102 months. Of 12 subjects having reached the age of 3 years during the study, 10 were re-evaluated at age 3-6 years: seven of 10 subjects had developed clinical pollen allergy, compared with four of 18 atopic controls (P < 0.05). CONCLUSIONS Potato-CAP and SPT at specific cut-off are valuable tools in the diagnosis of allergy to cooked potato. Most children with potato allergy develop tolerance at mean age of 4 years. Allergy to cooked potatoes is a risk factor for the development of pollen allergy.
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Affiliation(s)
- L F A De Swert
- Pediatric Allergy, Department of Pediatrics, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium
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Lee SK, Ye YM, Yoon SH, Lee BO, Kim SH, Park HS. Evaluation of the sensitization rates and identification of IgE-binding components in wild and genetically modified potatoes in patients with allergic disorders. Clin Mol Allergy 2006; 4:10. [PMID: 16817976 PMCID: PMC1533849 DOI: 10.1186/1476-7961-4-10] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Accepted: 07/04/2006] [Indexed: 11/10/2022] Open
Abstract
Background The potato is one of the most common types of genetically modified (GM) food. However, there are no published data evaluating the impact of genetic manipulations on the allergenicity of GM potatoes. To compare the allergenicity of GM potatoes with that of wild-type potatoes using in vivo and in vitro methods in adult allergy patients sensitized to potatoes. Methods A total of 1886 patients with various allergic diseases and 38 healthy controls participated in the study. Skin-prick testing and IgE-ELISA were carried out with extracts prepared from wild-type and GM potatoes. An ELISA inhibition test was used to confirm the binding specificity. IgE-binding components in extracts from the two types of potato were identified by SDS-PAGE and IgE-immunoblotting. The effects of digestive enzymes and heat on the allergenicity of the extracts was evaluated by preincubating the potatoes with or without simulated gastric and intestinal fluids in the absence or presence of heat. Results Positive responses (ratio of the wheal size induced by the allergen to that induced by histamine (A/H) ≥ 2+) to wild-type or GM potato extracts, as demonstrated by the skin-prick test, were observed in 108 patients (5.7%). Serum-specific IgE was detected in 0–88% of subjects who tested positively. ELISA inhibition tests indicated significant inhibition when extract from each type of potato was added. IgE-immunoblot analysis demonstrated the presence of 14 IgE-binding components within the wild-type potato and 9 within the GM potato. Furthermore, a common 45-kDa binding component that yielded similar IgE-binding patterns was noted in more than 80% of the reactions using sera from patients sensitized to wild-type or GM potato. Exposure to simulated gastric fluid and heat treatment similarly inhibited IgE binding by extracts from wild-type and GM potatoes, whereas minimal changes were obtained following exposure of the extracts to simulated intestinal fluid. Conclusion Our results strongly suggest that genetic manipulation of potatoes does not increase their allergenic risk. The sensitization rate of adult allergy patients to both types of extract was 5.7%, and a common major allergen (45 kDa) was identified.
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Affiliation(s)
- Soo-Keol Lee
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan
| | - Young-Min Ye
- Department of Allergy & Rheumatology, School of Medicine, Ajou University, Suwon
| | - Sung-Ho Yoon
- Department of Allergy & Rheumatology, School of Medicine, Ajou University, Suwon
| | - Bou-Oung Lee
- College of Agriculture, Chonbuk National University, Chonju, Korea
| | - Seung-Hyun Kim
- Department of Allergy & Rheumatology, School of Medicine, Ajou University, Suwon
| | - Hae-Sim Park
- Department of Allergy & Rheumatology, School of Medicine, Ajou University, Suwon
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ZOCK JP, DOEKES G, HEEDERIK D, VAN ZUYLEN M, WIELAARD P. Airborne dust antigen exposure and specific IgG response in the potato processing industry. Clin Exp Allergy 2006. [DOI: 10.1111/j.1365-2222.1996.tb00574.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moreno-Ancillo A, Gil-Adrados AC, Domínguez-Noche C, Cosmes PM, Pineda F. Occupational asthma due to carrot in a cook. Allergol Immunopathol (Madr) 2005; 33:288-90. [PMID: 16287550 DOI: 10.1157/13080934] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND Few previous reports of carrot-induced asthma have been confirmed by objective tests. Hypersensitivity to carrot is frequently associated with allergy to Apiaceae spices and sensitization to birch and mugwort pollens. CLINICAL CASE A 40-year-old cook woman was seen with sneezing, rhinorrhea, contact urticaria and wheezing within few minutes of handling or cutting raw carrots. She needed to leave out of the kitchen while the other cooks cut raw carrots. METHODS AND RESULTS Skin tests were positive to carrot, celery, aniseed and fennel. Rubbing test with fresh carrot was positive. Specific IgE to carrot was 4.44 kU/L. Determinations of specific IgE to mugwort, grass and birch pollens were negative. Inhalative provocation test, performed as a handling test, was positive. The IgE-immunoblotting showed two bands in carrot extract: a band with apparent molecular weight of 30 kd and other band of 18 kd. This band of 18 kd was Dau c 1. The band of 30 kd could correspond a phenylcoumaran benzylic ether reductase. Dau c 1 did not appear to be the unique allergen in this case. Additional allergens may induce the sensitization. Primary sensitization due to airborne allergens of foods and the lack of pollen allergy in this patient are notorious events.
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Affiliation(s)
- A Moreno-Ancillo
- Allergy Unit, Hospital Virgen del Puerto, Plasencia, Caceres, Spain.
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Quirce S, Madero MF, Fernández-Nieto M, Jiménez A, Sastre J. Occupational asthma due to the inhalation of cauliflower and cabbage vapors. Allergy 2005; 60:969-70. [PMID: 15932391 DOI: 10.1111/j.1398-9995.2005.00810.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Quirce
- Fundación Jiménez Díaz Servicio de Alergia Av. Reyes Católicos, 2 28040 Madrid Spain.
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Affiliation(s)
- J F Crespo
- Servicio de Alergia, Hospital Universitario Doce de Octubre, Madrid, Spain
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De Swert LFA, Cadot P, Ceuppens JL. Allergy to cooked white potatoes in infants and young children: A cause of severe, chronic allergic disease. J Allergy Clin Immunol 2002; 110:524-35. [PMID: 12209106 DOI: 10.1067/mai.2002.127435] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
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.
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Affiliation(s)
- Liliane F A De Swert
- Pediatric Allergy, the Department of Pediatrics, the Laboratory of Experimental Immunology, and the Division of Allergy and Clinical Immunology, University Hospital Gasthuisberg, Leuven, Belguim
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Seppälä U, Majamaa H, Turjanmaa K, Helin J, Reunala T, Kalkkinen N, Palosuo T. Identification of four novel potato (Solanum tuberosum) allergens belonging to the family of soybean trypsin inhibitors. Allergy 2001; 56:619-26. [PMID: 11421919 DOI: 10.1034/j.1398-9995.2001.00058.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND We have previously identified patatin (Sol t 1) of potato tubers as a major food allergen among atopic children. In addition to Sol t 1, concomitant IgE binding to other, then unidentified, potato proteins was observed. METHODS Purification and identification of the putative allergens were done by both standard and advanced methods of protein chemistry. The patient series comprised 39 children with positive skin prick test (SPT) to raw potato. Immunoblotting and ELISA were used to examine IgE-binding ability and skin prick testing to assess in vivo reactivity of the purified potato proteins. RESULTS Four IgE-binding potato proteins with molecular masses ranging from 16 to 20 kDa were purified and identified as cathepsin D-, cysteine-, and aspartic protease inhibitors belonging to the family of soybean trypsin inhibitors (Kunitz type). The proteins were designated Sol t 2, Sol t 3.0101, Sol t 3.0102, and Sol t 4. In ELISA, 51% of the sera of the 39 atopic children showed specific IgE to Sol t 2, 43% to Sol t 3.0101, 58% to Sol t 3.0102, and 67% to Sol t 4, respectively. All these four allergens were able to produce positive wheal-and-flare responses in SPT. CONCLUSION In addition to Sol t 1, potato tubers contain several proteins belonging to the family of soybean trypsin inhibitors against which atopic children with positive SPT responses to raw potato have in vitro and in vivo reactive IgE antibodies.
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Affiliation(s)
- U Seppälä
- Institute of Biotechnology, University of Helsinki, Helsinki, National Public Health Institute, Helsinki, Finland
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Abstract
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.
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Affiliation(s)
- J L Beausoleil
- Division of Immunologic and Infectious Diseases, The Children's Hospital of Philadelphia, PA 19104, USA
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Daroca P, Crespo JF, Reaño M, James JM, Lopez-Rubio A, Rodriguez J. Asthma and rhinitis induced by exposure to raw green beans and chards. Ann Allergy Asthma Immunol 2000; 85:215-8. [PMID: 11030276 DOI: 10.1016/s1081-1206(10)62469-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Although the vast majority of IgE-mediated allergic reactions to foods occurs through ingestion, a few cases of unexpected allergic reactions to foods may occur through the exposure to airborne food allergen particles. METHODS Case reports. Skin prick tests and serum-specific IgE (CAP-FEIA) were used to identify specific IgE antibodies. Bronchial provocation tests were performed to determine the clinical relevance of inhaled exposure to raw and cooked green beans and raw chards. After demonstrating specific reactivity to them, SDS-PAGE and immunoblotting of raw and cooked green beans were carried out to identify relevant antigens. RESULTS Three women developed bronchial asthma and rhinitis after exposure to raw green beans, and one of them also when exposed to raw chards. All women tolerated ingestion of green beans. Patients reported multiple episodes while handling these vegetables for cooking activities. Allergy to green beans and chards was demonstrated by skin testing and serum-specific IgE. Bronchial challenge test with these allergens showed positive responses to raw, but not cooked, green beans and chards. Oral food challenges with green beans (raw and cooked) and chards were negative in all patients. In order to further characterize the allergenic components of these extracts, SDS-PAGE and electroblotting studies were also performed. Immunoblots of raw and cooked green beans extract showed two IgE-binding bands with apparent molecular weights of 41.1 and 70.6 kD. Interestingly, a 47-kD IgE-binding protein was detected only in raw green bean extracts. CONCLUSIONS We report three patients who developed asthma and rhinitis caused by exposure to raw, but not to cooked, green beans and chards in a non-occupational environment. Only minor differences of IgE reactivity between nitrocellulose-blotted raw and boiled green bean extract were found.
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Affiliation(s)
- P Daroca
- Servicio de Alergia, Hospital Universitario 12 de Octubre, Madrid, Spain
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Seppälä U, Alenius H, Turjanmaa K, Reunala T, Palosuo T, Kalkkinen N. Identification of patatin as a novel allergen for children with positive skin prick test responses to raw potato. J Allergy Clin Immunol 1999; 103:165-71. [PMID: 9893201 DOI: 10.1016/s0091-6749(99)70541-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Peeling of raw potatoes may cause allergic symptoms, such as sneezing, wheezing, and contact urticaria, for adults. For children, potatoes as food may cause various allergic reactions. However, the identity and molecular structure of the putative allergens in potato have remained unknown. OBJECTIVE The aim of our study was to identify possible major allergens in potato by using sera of atopic children suspected of having food allergy and having positive skin prick test responses to raw potato. METHODS Potato proteins were purified by standard methods of protein chemistry and characterized with amino-terminal sequencing and mass spectrometry. The IgE-binding ability of the purified proteins was verified by immunoblotting and ELISA with IgE antibodies from the sera of atopic children having positive skin prick test responses to raw potato. RESULTS Immunoblotting showed strong IgE binding to a 43-kd protein, identified as patatin, the main storage protein of potato tubers. In ELISA, 20 of 27 (74%) children with positive skin prick test responses to potato and none of the control subjects showed specific binding of IgE antibodies to purified patatin. A positive wheal-and-flare reaction was seen in 8 of 14 children prick tested with purified patatin. CONCLUSION These results show that patatin in potatoes is a significant, previously unrecognized,IgE-binding protein for children with a positive skin prick test response to raw potato. Further studies are needed to confirm the clinical importance of potatoes, and especially patatin, as a food allergen.
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Affiliation(s)
- U Seppälä
- Institute of Biotechnology, University of Helsinki, Finland
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Lopez-Rubio A, Rodriguez J, Crespo JF, Vives R, Daroca P, Reaño M. Occupational asthma caused by exposure to asparagus: detection of allergens by immunoblotting. Allergy 1998; 53:1216-20. [PMID: 9930601 DOI: 10.1111/j.1398-9995.1998.tb03845.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Vegetables of the Liliaceae family, such as garlic or onion, have been reported to cause occupational asthma. However, there are few data on adverse reactions to asparagus. We evaluated the role of asparagus as a cause of asthma in a patient with respiratory symptoms occurring at work (horticulture) and studied relevant allergens. METHODS A 28-year-old man complained of rhinoconjunctivitis and asthma when harvesting asparagus at work. Eating cooked asparagus did not provoke symptoms. A positive skin test reaction was observed with raw asparagus, Alternaria alternata, and grass-pollen extracts. The methacholine test demonstrated mild bronchial hyperresponsiveness. The patient had an immediate asthmatic response after challenge with raw asparagus extract. Bronchial provocation tests with boiled asparagus, A. alternata, and control extracts were negative. Two unexposed subjects with seasonal allergic asthma did not react to the raw asparagus extract. RESULTS The double-blind, placebo-controlled food challenge with raw asparagus was negative. Serum asparagus-specific IgE was 13.9 kU(A)/l. By SDS-PAGE immunoblot, at least six IgE-binding components, ranging from 22 to 73 kDa, were detected only in raw asparagus. CONCLUSIONS We report a case of occupational asthma caused by asparagus inhalation, confirmed by specific bronchoprovocation. Immunoblot analysis showed that asparagus allergens are very labile and quite sensitive to heat denaturation.
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Affiliation(s)
- A Lopez-Rubio
- Servicio de Alergia, Hospital Universitario 12 de Octubre, Madrid, Spain
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Delgado J, Castillo R, Quiralte J, Blanco C, Carrillo T. Contact urticaria in a child from raw potato. Contact Dermatitis 1996; 35:179-80. [PMID: 8930484 DOI: 10.1111/j.1600-0536.1996.tb02342.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- J Delgado
- Sección de Alergia, Hospital Nuestra Señora del Pino, Las Palmas de Gran Canaria, Spain
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Abstract
Food allergy (FA) induced asthma is less common than FA induced atopic dermatitis, or angioedema. The incidence reaches 8.5%. Occupational asthma due to the inhalation of various food proteins is increasingly described. Egg proteins could be peculiarly at risk. In the childhood, all the kinds of foods can be incriminated. In adults, FA are predominantly due to vegetal allergens, included in the following botanical families: rosaceae, umbelliferae, and exotic fruits. Bronchi are sensitized either by inhalation of food allergens or by inhalation of cross-reactive pneumoallergens, such as pollens, feathers, latex. The fact that FA might create a bronchial hyperreactivity is controversial. Bronchial challenges induce late-phase reactions and document the acquisition of an inflammatory state. The quantity of allergens gaining access to bronchi plays a major part in the triggering of asthma. It can be modulated by variations of intestinal permeability which are related to viral infections, aspirin, alcohol, etc. The chemical characteristics of proteins, such as hydrophobicity might interfere with the passage through the gut mucosa. The diagnosis is based upon skin tests and the detection of specific IgE, identifying the state of hypersensitivity. Provocation tests are mandatory to establish FA. The pharmacological approach of the treatment is less important than the eviction insofar as the specific immunotherapy is not yet currently performed.
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Affiliation(s)
- D A Moneret-Vautrin
- Service de médecine D, immunologie clinique et allergologie, hôpital Central, Nancy, France
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Lezaun A, Igea JM, Quirce S, Cuevas M, Parra F, Alonso MD, Martín JA, Cano MS. Asthma and contact urticaria caused by rice in a housewife. Allergy 1994; 49:92-5. [PMID: 7513507 DOI: 10.1111/j.1398-9995.1994.tb00806.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We report the case of an atopic housewife who presented with rhinoconjunctivitis-asthma and contact urticaria from handling rice and other cereals. She tolerated cooke cereals. Both skin prick tests with a rice extract (20% w/v) and a rub test with raw rice gave positive results. Bronchial challenge test with methacholine revealed a PC20 of 0.45 mg/ml. The challenge test with raw rice resulted in immediate and late clinical and spirometric responses; pretreatment with DSCG inhibited both responses. The histamine release test (HRT) with rice was positive, and we detected rice-specific IgE antibodies by REIA in the patient's serum. Skin prick tests, HRT, and RAST with a battery of cereals gave positive results. Finally, the rice REIA was inhibited by rice (75%), rye (63%), corn (64%), and wheat (51%) extracts.
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Affiliation(s)
- A Lezaun
- Servicio de Alergología, Hospital Ramón y Cajal, Madrid, Spain
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Hollander A, Heederik D, Kauffman H. Acute respiratory effects in the potato processing industry due to a bioaerosol exposure. Occup Environ Med 1994; 51:73-8. [PMID: 8111467 PMCID: PMC1127910 DOI: 10.1136/oem.51.2.73] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The relation between bioaerosol exposure in the potato starch industry and work related respiratory symptoms is described. One group of workers was exposed to high dust concentrations (geometric mean up to 56.0 mg/m3) with low endotoxin and antigen concentrations (geometric mean up to 12.6 ng/m3 and 90 relative antigen units (RAU) per m3). A second group was exposed to low dust concentrations (geometric mean up to 3.9 mg/m3), but the endotoxin and antigen concentrations were high (geometric means of environmental samples up to 72 ng/m3 and 2.9.10(2)RAU/m3). Twenty of the 48 workers had specific IgG4 titres to dust extract. Of these 20 workers, 14 showed an increase in IgG4 titre during the first month of the potato processing season. No specific IgE antibodies to dust extracts were found. Twenty two workers were equipped with a Mini-Wright peak flow meter during a four week period. Two workers showed a work related decline in peak flow values. It was concluded that exposure to dust made airborne during the refining process of potato starch may cause work related respiratory symptoms.
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Affiliation(s)
- A Hollander
- Department of Epidemiology and Public Health, Wageningen Agricultural University, The Netherlands
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Moneret-Vautrin D, Kanny G, Gerard H, Gueant J, Nicolas J, Brignon J, Maria Y. Détermination des IgE spécifiques aux allergènes alimentaires par le MAST-CLA. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/s0335-7457(05)80259-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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