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Bahna SL. New insights in hidden food allergies. JOURNAL OF FOOD ALLERGY 2023; 5:19-24. [PMID: 39022332 PMCID: PMC11250454 DOI: 10.2500/jfa.2023.5.230003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Food allergic reactions primarily occur after exposure to the offending food through ingestion, contact, or inhalation. However, it can occur covertly through hidden ways that are often missed, with undesirable consequences. Information has been accumulating over the years to indicate that food allergy (FA) may have been the problem in subjects who do not report an association to eating, touching, or smelling a food. Therefore, it would be prudent to explore the possibility of a hidden FA. The causative substance may be a food allergen or a nonfood allergen hidden in a previously tolerated food. Food allergens are commonly hidden in various medications, even in anti-allergy drugs. A blood product may passively transmit food allergens to a recipient who is sensitized or food-specific immunoglobulin E antibodies to a recipient who is nonatopic. It may also be excreted in breast milk, saliva, or semen. Transmission of the FA genetic trait can occur through transplantation of hematopoietic tissue. When the medical history and routine allergy evaluation do not point to the cause of an allergic reaction, it would be prudent to suspect hidden FA before labeling the reaction as idiopathic. A skillful detailed history taking, a cooperative patient, a careful reading of labels, and an interested allergist are needed for suspecting hidden FA and for planning an appropriate evaluation and verification of the offending allergen and, ultimately, optimal relief for the patient.
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Affiliation(s)
- Sami L. Bahna
- From the Allergy and Immunology Section, Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport, Louisiana
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2
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Marsteller NL, Morphew TL, Randhawa IS. Demographic, clinical and diagnostic correlation of almond allergy in a cohort of nut allergy patients. FOOD AGR IMMUNOL 2021. [DOI: 10.1080/09540105.2021.1955831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Nathan L. Marsteller
- The Translational Pulmonary and Immunology Research Center (TPIRC), Long Beach, CA, USA
- MemorialCare Health System, Long Beach, CA, USA
- Pediatric Pulmonology Division, Miller Children’s Hospital, Long Beach, CA, USA
| | - Tricia L. Morphew
- MemorialCare Health System, Long Beach, CA, USA
- Morphew Consulting, LLC, Bothell, WA, USA
| | - Inderpal S. Randhawa
- The Translational Pulmonary and Immunology Research Center (TPIRC), Long Beach, CA, USA
- MemorialCare Health System, Long Beach, CA, USA
- Pediatric Pulmonology Division, Miller Children’s Hospital, Long Beach, CA, USA
- Irvine School of Medicine, University of California, Irvine, CA, USA
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3
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Kayode OS, Prado N, Thursfield DJ, Till SJ, Siew LQC. Lemon seed allergy: a case presentation. Allergy Asthma Clin Immunol 2020; 16:32. [PMID: 32377208 PMCID: PMC7191823 DOI: 10.1186/s13223-020-00429-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/24/2020] [Indexed: 11/10/2022] Open
Abstract
Background We report a case of IgE-mediated hypersensitivity to lemon seed. We demonstrate for the first time a pattern of cross-sensitisation between seeds of citrus hybrid species from similar ancestral species origins. Case report Described is a case of a 26-year-old female with recurrent anaphylaxis on exposure to lemon seed with sensitisation shown on prick to prick testing. Prick to prick testing was also performed to a variety of citrus fruit seeds and edible foods from additional notable families of the Sapindale order. Conclusion In cases of unexplained or recurrent anaphylaxis in adult patients, citrus seed allergy should be considered.
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Affiliation(s)
- O Stephanie Kayode
- 1Department of Adult Allergy, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT UK
| | - Nuevalynne Prado
- 1Department of Adult Allergy, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT UK
| | - David J Thursfield
- 1Department of Adult Allergy, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT UK
| | - Stephen J Till
- 1Department of Adult Allergy, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT UK.,2Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Leonard Q C Siew
- 1Department of Adult Allergy, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT UK.,2Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
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Albunni BA, Wessels H, Paschke-Kratzin A, Fischer M. Antibody Cross-Reactivity between Proteins of Chia Seed ( Salvia hispanica L.) and Other Food Allergens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7475-7484. [PMID: 31117490 DOI: 10.1021/acs.jafc.9b00875] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chia seeds are becoming increasingly common in Europe because of their functional and nutritional properties. Despite this, few studies have focused on the allergic potential and antibody cross-reactivity among storage proteins in chia seed and other plants. The aim of this study was to identify chia seed's immunoglobulin G (IgG) and immunoglobulin E (IgE) binding proteins ( Salvia hispanica L.) and to investigate the antibody cross-reactivity among its storage proteins and those of other seeds. Extracted chia seed proteins were separated by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Immunodetection was performed with commercial antibodies against sesame seed, hazelnut, and peanut and sera from 33 patients with a hazelnut allergy and five with a sesame allergy. Cross-reactivity of certain antibodies with storage proteins of chia seed, sesame seed, and hazelnut was assessed using an enzyme-linked immunosorbent assay (ELISA) inhibition, blot inhibition, and surface plasmon resonance (SPR) spectroscopy. IgG binding proteins were identified at molecular weight (MW) 70, 49, 34, 23, and 20 kDa by applying commercial antibodies. Furthermore, the interaction of chia proteins with sera from sesame-allergic patients led to identify IgE binding proteins at MW 49, 45, 31, 20, and 12 kDa, while IgEs in sera from hazelnut-allergic patients reacted with proteins at MW 300, 140, 49, 45, 31, 20, and 6 kDa. The results of ELISA inhibition and blot inhibition indicated chia seed proteins are similar to sesame seed and hazelnut proteins in the primary structure. The antisesame antibodies' binding to sesame proteins was more strongly inhibited by the chia globulin fraction (GLO) than the antihazelnut antibodies' binding to hazelnut proteins. SPR results confirmed the presence of IgG binding proteins in GLO and the high similarity of epitopes on globulins of chia seed and sesame seed. Thus, chia seed consumption might lead to cross-sensitization in patients with a sesame allergy.
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Affiliation(s)
- Ben Abdulrahman Albunni
- Hamburg School of Food Science; Institute of Food Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany
| | - Hauke Wessels
- Hamburg School of Food Science; Institute of Food Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany
| | - Angelika Paschke-Kratzin
- Hamburg School of Food Science; Institute of Food Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany
| | - Markus Fischer
- Hamburg School of Food Science; Institute of Food Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany
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5
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Lubinska-Szczygeł M, Pudlak D, Dymerski T, Namieśnik J. Rapid assessment of the authenticity of limequat fruit using the electronic nose and gas chromatography coupled with mass spectrometry. MONATSHEFTE FUR CHEMIE 2018; 149:1605-1614. [PMID: 30174348 PMCID: PMC6105222 DOI: 10.1007/s00706-018-2242-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/23/2018] [Indexed: 11/30/2022]
Abstract
Abstract Citrus fruits are very popular food products. There are many species and varieties of them. There are also documented cases of some citrus fruits causing a severe allergic reaction. Some species of the citrus fruits, especially hybrid ones show a reduced allergenic effect due to the lack of seeds. There is a need for rapid methods for evaluation of citrus’ botanical origin. During research, the headspace of three citrus fruits Citrus Aurantifolia, Citrus japonica, and Citrus × floridana was analysed using electronic nose based on ultrafast gas chromatography and gas chromatography with mass spectrometry. In the paper, two approaches were compared. The usefulness of an electronic nose to control the quality of hybrids was demonstrated. The results obtained during ultrafast gas chromatography analyses were subjected to statistical analysis. Four chemometric methods namely: principal component analysis (PCA), discriminant function analysis (DFA), soft independent modeling of class analogies (SIMCA), statistical quality control (SQC) were used to distinguish between limequat and its parent fruits. Electronic nose combined with chemometrics is a novel analytical tool for hybrid fruits’ classification due to their botanical origin. It can supplement established techniques by providing results in a short time and at a low cost. Graphical abstract ![]()
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Affiliation(s)
- Martyna Lubinska-Szczygeł
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdańsk, Poland
| | - Dominika Pudlak
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdańsk, Poland
| | - Tomasz Dymerski
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdańsk, Poland
| | - Jacek Namieśnik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza Str., 80-233 Gdańsk, Poland
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7
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van Odijk J, Sjölander S, Brostedt P, Borres MP, Englund H. High frequency of IgE sensitization towards kiwi seed storage proteins among peanut allergic individuals also reporting allergy to kiwi. Clin Mol Allergy 2017; 15:18. [PMID: 29118674 PMCID: PMC5664576 DOI: 10.1186/s12948-017-0073-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 09/18/2017] [Indexed: 11/21/2022] Open
Abstract
Background IgE sensitization to storage proteins from nuts and seed is often related to severe allergic symptoms. There is a risk of immunological IgE cross-reactivity between storage proteins from different species. The potential clinical implication of such cross-reactivity is that allergens other than the known sensitizer can cause allergic symptoms. Previous studies have suggested that kiwi seed storage proteins may constitute hidden food allergens causing cross-reactive IgE-binding with peanut and other tree nut homologs, thereby mediating a potential risk of causing allergy symptoms among peanut ant tree nut allergic individuals. The objective of this study was to investigate the degree of sensitization towards kiwi fruit seed storage proteins in a cohort of peanut allergic individuals. Methods A cohort of 59 adolescents and adults with peanut allergy was studied, and self reported allergies to a number of additional foods were collected. Quantitative IgE measurements to seed storage proteins from kiwi and peanut were performed. Results In the cohort, 23 out of the 59 individuals were reporting kiwi fruit allergy (39%). The frequency of IgE sensitization to kiwi fruit and to any kiwi seed storage protein was higher among peanut allergic individuals also reporting kiwi fruit allergy (P = 0.0001 and P = 0.01). A positive relationship was found between IgE levels to 11S globulin (r = 0.65) and 7S globulin (r = 0.48) allergens from kiwi and peanut, but IgE levels to 2S albumin homologs did not correlate. Patients reporting kiwi fruit allergy also reported allergy to hazelnut (P = 0.015), soy (P < 0.0001), pea (P = 0.0002) and almond (P = 0.016) to a higher extent than peanut allergic individuals without kiwi allergy. Conclusions Thirty-nine percent of the peanut allergic patients in this cohort also reported kiwi fruit allergy, they displayed a higher degree of sensitization to kiwi storage proteins from both kiwi and peanut, and they also reported a higher extent of allergy to other nuts and legumes. On the molecular level, there was a correlation between IgE levels to 11S and 7S storage proteins from kiwi and peanut. Taken together, reported symptoms and serological findings to kiwi in this cohort of patients with concurrent allergy to peanut and kiwi fruit, could be explained by a combination of cross-reactivity between the 11S and 7S globulins and co-sensitization to the 2S albumin Act d 13.
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Affiliation(s)
- Jenny van Odijk
- Dept of Respiratory Medicine and Allergology, Sahlgrenska Academy at Göteborg University, Göteborg, Sweden.,Internal Medicine and Clinical Nutrition, Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
| | - Sigrid Sjölander
- R&D, ImmunoDiagnostic Division, Thermo Fisher Scientific, Uppsala, Sweden
| | - Peter Brostedt
- R&D, ImmunoDiagnostic Division, Thermo Fisher Scientific, Uppsala, Sweden
| | - Magnus P Borres
- R&D, ImmunoDiagnostic Division, Thermo Fisher Scientific, Uppsala, Sweden.,Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Hillevi Englund
- R&D, ImmunoDiagnostic Division, Thermo Fisher Scientific, Uppsala, Sweden
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8
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Sharma A, Flores-Vallejo RDC, Cardoso-Taketa A, Villarreal ML. Antibacterial activities of medicinal plants used in Mexican traditional medicine. JOURNAL OF ETHNOPHARMACOLOGY 2017; 208:264-329. [PMID: 27155134 DOI: 10.1016/j.jep.2016.04.045] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 04/24/2016] [Accepted: 04/25/2016] [Indexed: 05/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE We provide an extensive summary of the in vitro antibacterial properties of medicinal plants popularly used in Mexico to treat infections, and we discuss the ethnomedical information that has been published for these species. MATERIALS AND METHODS We carried out a bibliographic investigation by analyzing local and international peer-reviewed papers selected by consulting internationally accepted scientific databases from 1995 to 2014. We provide specific information about the evaluated plant parts, the type of extracts, the tested bacterial strains, and the inhibitory concentrations for each one of the species. We recorded the ethnomedical information for the active species, as well as their popular names and local distribution. Information about the plant compounds that has been identified is included in the manuscript. This review also incorporates an extensive summary of the available toxicological reports on the recorded species, as well as the worldwide registries of plant patents used for treating bacterial infections. In addition, we provide a list with the top plant species with antibacterial activities in this review RESULTS: We documented the in vitro antibacterial activities of 343 plant species pertaining to 92 botanical families against 72 bacterial species, focusing particularly on Staphylococcus aureus, Mycobacterium tuberculosis, Escherichia coli and Pseudomonas aeruginosa. The plant families Asteraceae, Fabaceae, Lamiaceae and Euphorbiaceae included the largest number of active species. Information related to popular uses reveals that the majority of the plants, in addition to treating infections, are used to treat other conditions. The distribution of Mexican plants extended from those that were reported to grow in just one state to those that grow in all 32 Mexican states. From 75 plant species, 225 compounds were identified. Out of the total plant species, only 140 (40.57%) had at least one report about their toxic effects. From 1994 to July 2014 a total of 11,836 worldwide antibacterial patents prepared from different sources were recorded; only 36 antibacterial patents from plants were registered over the same time period. We offered some insights on the most important findings regarding the antibacterial effects, current state of the art, and research perspectives of top plant species with antibacterial activities in vitro. CONCLUSIONS Studies of the antibacterial in vitro activity of medicinal plants popularly used in Mexico to treat infections indicate that both the selection of plant material and the investigation methodologies vary. Standardized experimental procedures as well as in vivo pharmacokinetic studies to document the effectiveness of plant extracts and compounds are necessary. This review presents extensive information about the medicinal plants possessing antibacterial activity that has been scientifically studied and are popularly used in Mexico. We anticipate that this review will be of use for future studies because it constitutes a valuable information tool for selecting the most significant plants and their potential antibacterial properties.
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Affiliation(s)
- Ashutosh Sharma
- Escuela de Ingeniería en Alimentos, Biotecnología y Agronomía (ESIABA), Tecnológico de Monterrey, Campus Querétaro, México
| | - Rosario Del Carmen Flores-Vallejo
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - Alexandre Cardoso-Taketa
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
| | - María Luisa Villarreal
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca Morelos 62209, México
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9
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Wu J, Chen L, Lin D, Ma Z, Deng X. Development and Application of a Multiplex Real-Time PCR Assay as an Indicator of Potential Allergenicity in Citrus Fruits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9089-9098. [PMID: 27794596 DOI: 10.1021/acs.jafc.6b03410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The effects of tissue type, harvest maturity, and genetic factors on the expression of genes that related to citrus fruit allergies remain poorly understood. In the present study, a multiplex real-time PCR assay was developed to monitor the expression of citrus allergen genes individually with the advantages of much fewer sample requirements and simultaneously multiple target genes detection. Gene specific primer pairs and Taqman probes of three citrus allergen genes Cit s 1.01, Cit s 2.01, and Cit s 3.01 and the house-keeping gene β-actin were designed based on gene sequence differences. The PCR results showed that differential expression patterns were found during the ripening process. The expression levels of Cit s 3.01 were much higher than those of Cit s 1.01 and Cit s 2.01 in both peel and pulp tissues among 10 citrus cultivars. Data suggested that Kao Phuang Pummelo could be safely consumed with a potential low risk in allergenicity. Considering that assessing allergenicity is one of the tests in food safety, this assay might also facilitate the breeding and production of "allergy-friendly" citrus fruits.
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Affiliation(s)
- Jinlong Wu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University , Wuhan 430070, China
| | - Lin Chen
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University , Wuhan 430070, China
| | - Dingbo Lin
- Department of Nutritional Sciences, Oklahoma State University , 419 Human Sciences, Stillwater, Oklahoma 74078, United States
| | - Zhaocheng Ma
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University , Wuhan 430070, China
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University , Wuhan 430070, China
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Verhulst L, Goossens A. Cosmetic components causing contact urticaria: a review and update. Contact Dermatitis 2016; 75:333-344. [DOI: 10.1111/cod.12679] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/24/2016] [Accepted: 07/27/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Lien Verhulst
- Department of Dermatology; University Hospitals KU Leuven; Leuven 3000 Belgium
| | - An Goossens
- Department of Dermatology; University Hospitals KU Leuven; Leuven 3000 Belgium
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11
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Brandström J, Lilja G, Nilsson C, Ingemarsson N, Borres MP, Brostedt P, Englund H. IgE to novel citrus seed allergens among cashew-allergic children. Pediatr Allergy Immunol 2016; 27:550-3. [PMID: 26888192 DOI: 10.1111/pai.12553] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/13/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Josef Brandström
- Sach's Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden. .,Department of Clinical Science and Education, Södersjukhuset Karolinska Institutet, Stockholm, Sweden.
| | - Gunnar Lilja
- Sach's Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden.,Department of Clinical Science and Education, Södersjukhuset Karolinska Institutet, Stockholm, Sweden
| | - Caroline Nilsson
- Sach's Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden.,Department of Clinical Science and Education, Södersjukhuset Karolinska Institutet, Stockholm, Sweden
| | | | - Magnus P Borres
- R&D, ImmunoDiagnostics, Thermo Fisher Scientific, Uppsala, Sweden.,Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Peter Brostedt
- R&D, ImmunoDiagnostics, Thermo Fisher Scientific, Uppsala, Sweden
| | - Hillevi Englund
- R&D, ImmunoDiagnostics, Thermo Fisher Scientific, Uppsala, Sweden
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12
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Brough HA, Turner PJ, Wright T, Fox AT, Taylor SL, Warner JO, Lack G. Dietary management of peanut and tree nut allergy: what exactly should patients avoid? Clin Exp Allergy 2016; 45:859-871. [PMID: 25443673 DOI: 10.1111/cea.12466] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Peanut and tree nut allergies are the commonest cause of life-threatening food-allergic reactions and significantly affect quality of life in children and their families. Dietary nut avoidance and provision of emergency medication is currently the mainstay of treatment. Nut avoidance has consequences on both quality of life and nutrition. We review the terminology that may cause confusion and lead to unnecessary dietary restrictions. In peanut or tree nut-allergic children, introduction of specific nuts to which the child is not allergic may improve quality of life and should be considered in patients with multiple foods allergies, vegan or ethnic-specific diets, in whom nuts are an important source of protein. Nut-allergic consumers do not just need to avoid foods containing nuts as an ingredient, but also contend with pre-packed foods which frequently have precautionary allergen labelling (PAL) referring to possible nut contamination. Although the published rate of peanut contamination in 'snack' foods with PAL (see Box ) ranges from 0.9-32.4%, peanut contamination in non-snack items with PAL is far less common. We propose that in some peanut-allergic patients (depending on history of reactivity to trace levels of peanut, reaction severity, other medical conditions, willingness to always carry adrenaline, etc.), consideration may be given to allow the consumption of non-snack foods containing PAL following discussion with the patient's (and their family's) specialist. More work is needed to provide consumers with clearer information on the risk of potential nut contamination in pre-packed food. We also draw attention to the change in legislation in December 2014 that require mandatory disclosure of allergens in non-pre-packed foods.
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Affiliation(s)
- H A Brough
- Children's Allergy Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Division of Asthma, Allergy and Lung Biology & MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, London, UK
| | - P J Turner
- Section of Paediatrics (Allergy & Immunology) & MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK.,Imperial College Healthcare NHS Trust / NIHR Biomedical Research Unit.,Discipline of Paediatrics and Child Health, University of Sydney, Sydney, NSW, Australia
| | - T Wright
- Children's Allergy Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - A T Fox
- Children's Allergy Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Division of Asthma, Allergy and Lung Biology & MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, London, UK
| | - S L Taylor
- Food Allergy Research & Resource Program, Department of Food Science & Technology, University of Nebraska, Lincoln, NE, USA
| | - J O Warner
- Section of Paediatrics (Allergy & Immunology) & MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK.,Imperial College Healthcare NHS Trust / NIHR Biomedical Research Unit
| | - G Lack
- Children's Allergy Unit, Guy's and St. Thomas' NHS Foundation Trust, London, UK.,Division of Asthma, Allergy and Lung Biology & MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, London, UK
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13
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Serra IA, Bernardo L, Spadafora A, Faccioli P, Canton C, Mazzuca S. The Citrus clementina putative allergens: from proteomic analysis to structural features. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:8949-8958. [PMID: 23927767 DOI: 10.1021/jf4023367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Several allergens have been identified and characterized in the genus Citrus, which belongs to the germin-like proteins (GPLs), profilins, and non-specific lipid transfer proteins (nsLTPs). In this work, in silico sequence analysis, protein purification, mass spectrometry identification, and the spectral counting method were integrated to identify new putative allergens of Citrus clementina and their expression level in the fruit peel. The in silico analysis revealed fifteen new sequences belonging to GLPs (Cit cl 1), and two more belonging to nsLTPs (Cit cl 3). No other new sequences were found as regards profilins (Cit cl 2). Each putative allergen from fruit peel was obtained using different protein extraction methods, and the protein sequences of the putative allergens were identified by means of LTQ-Orbitrap XL mass spectrometer. The spectral counting strategy revealed that Cit cl 1 had a higher expression level than Cit cl 2 and Cit cl 3. To predict the quaternary structure and deduced function of Cit cl 1, its primary sequence was used as a template to search a homologous protein structure in the RCSB PDB Database, getting high correspondence with the oxalate oxidase protein in barley.
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Affiliation(s)
- Ilia Anna Serra
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende (CS), Italy
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14
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Iorio RA, Del Duca S, Calamelli E, Pula C, Lodolini M, Scamardella F, Pession A, Ricci G. Citrus allergy from pollen to clinical symptoms. PLoS One 2013; 8:e53680. [PMID: 23308273 PMCID: PMC3537725 DOI: 10.1371/journal.pone.0053680] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 12/04/2012] [Indexed: 11/20/2022] Open
Abstract
Allergy to citrus fruits is often associated with pollinosis and sensitization to other plants due to a phenomenon of cross-reactivity. The aims of the present study were to highlight the cross-reactivity among citrus and the major allergenic pollens/fruits, throughout clinical and molecular investigations, and to evaluate the sensitization frequency to citrus fruits in a population of children and adults with pollinosis. We found a relevant percentage of sensitisation (39%) to citrus fruits in the patients recruited and in all of them the IgE-mediated mechanism has been confirmed by the positive response to the prick-to-prick test. RT-PCR experiments showed the expression of Cit s 1, Cit s 3 and a profilin isoform, already described in apple, also in Citrus clementine pollen. Data of multiple sequence alignments demonstrated that Citrus allergens shared high percentage identity values with other clinically relevant species (i.e. Triticum aestivum, Malus domestica), confirming the possible cross-allergenicity citrus/grasses and citrus/apple. Finally, a novelty of the present work has been the expression of two phospholipaseA2 isoforms (PLA2 α and β) in Citrus as well as in Triticum pollens; being PLA2 able to generate pro-inflammatory factors, this enzyme could participate in the activation of the allergenic inflammatory cascade.
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Affiliation(s)
- Rosa Anna Iorio
- Department of Biological, Earth and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Stefano Del Duca
- Department of Biological, Earth and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Elisabetta Calamelli
- Department of Pediatric Allergology of the Women's, Children's and Adolescents' Health Gozzadini Children's Hospital Sant'Orsola-Malpighi, University of Bologna, Bologna, Italy
| | - Chiara Pula
- Department of Pediatric Allergology of the Women's, Children's and Adolescents' Health Gozzadini Children's Hospital Sant'Orsola-Malpighi, University of Bologna, Bologna, Italy
| | - Magda Lodolini
- Laboratory Analysis Unit. Maggiore Hospital, Bologna, Italy
| | | | - Andrea Pession
- Department of Pediatric Allergology of the Women's, Children's and Adolescents' Health Gozzadini Children's Hospital Sant'Orsola-Malpighi, University of Bologna, Bologna, Italy
| | - Giampaolo Ricci
- Department of Pediatric Allergology of the Women's, Children's and Adolescents' Health Gozzadini Children's Hospital Sant'Orsola-Malpighi, University of Bologna, Bologna, Italy
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Anaphylaxis to apple and orange seed. J Allergy Clin Immunol 2011; 128:1363-5. [DOI: 10.1016/j.jaci.2011.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2010] [Revised: 06/07/2011] [Accepted: 07/01/2011] [Indexed: 11/21/2022]
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O'Sullivan MD, Somerville C. Cosensitization to orange seed and cashew nut. Ann Allergy Asthma Immunol 2011; 107:282-3. [PMID: 21875550 DOI: 10.1016/j.anai.2011.06.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Revised: 05/25/2011] [Accepted: 06/07/2011] [Indexed: 10/18/2022]
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Bibliography. Current world literature. Model systems. Curr Opin Allergy Clin Immunol 2008; 8:276-85. [PMID: 18560306 DOI: 10.1097/aci.0b013e328303e104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Current World Literature. Curr Opin Otolaryngol Head Neck Surg 2008; 16:292-5. [DOI: 10.1097/moo.0b013e3283041256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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