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1.
Braz. j. biol ; 83: e251075, 2023. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1339401

ABSTRACT

Abstract Plant-derived products can assist in the healing process of dermal wounds. It has been demonstrated that Hancornia speciosa latex present angiogenic, osteogenic, anti-inflammatory, and antioxidant activities. Then, it could contribute to the wound healing process. However, natural products in contact with skin may cause dermatitis. The objective of this work was to evaluate the allergic and irritant potential of H. speciosa serum fraction latex using in vitro assays. The obtained results showed that the H. speciosa serum fraction latex has a slightly irritant potential and is not cytotoxic neither allergenic for human cells. Moreover, we identified a remarkable low amount of proteins in this material in comparison to Hevea brasiliensis latex. This result could explain the non-allergenic potential of H. speciosa serum fraction latex because proteins present in latex are the main responsible for allergy. This biomaterial could be used as a non-allergenic source for development of new medicines.


Resumo Produtos derivados de plantas podem auxiliar no processo de cicatrização de feridas cutâneas. Foi demonstrado que o látex de Hancornia speciosa apresenta atividades angiogênicas, osteogênicas, antiinflamatórias e antioxidantes. Então, este biomaterial pode contribuir para o processo de cicatrização de feridas. No entanto, produtos naturais em contato com a pele podem causar dermatites. O objetivo deste trabalho foi avaliar o potencial alérgico e irritante do látex da fração soro de H. speciosa por meio de ensaios in vitro. Os resultados obtidos mostraram que o látex da fração do soro de H. speciosa possui um potencial pouco irritante e não é citotóxico nem alergênico para células humanas. Além disso, foi identificado uma notável baixa quantidade de proteínas neste material em comparação ao látex de Hevea brasiliensis. Esse resultado poderia explicar o potencial não alergênico do látex da fração soro de H. speciosa, pois as proteínas presentes no látex são as principais responsáveis ​​pela alergia. Este biomaterial pode ser utilizado como fonte não alergênica para desenvolvimento de novos medicamentos.


Subject(s)
Humans , Apocynaceae , Hevea , Wound Healing , Biocompatible Materials , Allergens , Latex
2.
Arch. argent. pediatr ; 120(1): 21-29, feb 2022. tab, ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1353407

ABSTRACT

Introducción. La alergia a las proteínas de la leche de vaca es la alergia alimentaria más frecuente en los niños y para su diagnóstico se emplean historia clínica dirigida y prueba de provocación oral (PPO), el dosaje sérico de inmunoglobulina E específica (sIgE) y pruebas cutáneas de puntura (SPT, por su sigla en inglés). Sin embargo, su utilidad diagnóstica es difícil de establecer en la población local. El objetivo fue evaluar la utilidad de las pruebas para el diagnóstico de alergia a las proteínas de la leche de vaca (PLV) en la población estudiada. Población y métodos. Análisis retrospectivo de datos de pacientes atendidos en la Unidad de Alergia del Hospital Elizalde entre 2015 y 2018. Se evaluaron SPT y sIgE para leche, alfa-lactoalbúmina, beta-lactoglobulina y caseína, seguidos de PPO y se determinó la utilidad diagnóstica para cada prueba, y sus combinaciones. Resultados. Se evaluaron las pruebas de 239 pacientes. La PPO fue hospitalaria en el 54,8 % de los casos, por reexposición domiciliara en el 35,5 % y en el 9,6 % por incorporación de PLV a la madre. La mayor especificidad fue la de SPT con caseína (96,7 %; intervalo de confianza [IC95%]: 90,8-99,3) y la mayor sensibilidad, la de la combinación de SPT y sIgE con los 4 alérgenos (55,3 %; IC95%: 45,7-64,6). Conclusiones. El trabajo estableció la utilidad diagnóstica de las SPT y el sIgE en la población estudiada.


Introduction. Cow's milk protein allergy is the most common food allergy among children. It can be diagnosed based on a guided history taking and using an oral food challenge (OFC), serum specific immunoglobulin E levels (sIgE), and skin prick tests (SPT). However, it is difficult to establish their diagnostic performance in the local population. Our objective was to assess the usefulness of tests used to diagnose cow's milk protein (CMP) allergy in the studied population. Population and methods. Retrospective analysis of data from patients seen at the Unit of Allergy of a tertiary care pediatric hospital between 2015 and 2018. SPT and sIgE tests were done for milk, alpha-lactalbumin, beta-lactoglobulin, and casein, followed by an OFC, and the diagnostic usefulness of each test, as well as their combination, was established. Results. The tests of 239 patients were assessed. OFC was performed at the hospital in 54.8 % of cases, via a rechallenge test at home in 35.5 %, and through CMP intake by the mother in 9.6 %. The highest specificity was observed with the casein SPT (96.7 %; 95 % confidence interval [CI]: 90.8-99.3) and the highest sensitivity, with the 4-allergen SPT and sIgE combination (55.3 %; 95 % CI: 45.7-64.6). Conclusions. The study established the diagnostic usefulness of SPT and sIgE in the studied population.


Subject(s)
Humans , Animals , Infant , Milk Hypersensitivity/diagnosis , Immunoglobulin E , Cattle , Skin Tests , Allergens , Cross-Sectional Studies , Retrospective Studies
4.
Arq. bras. med. vet. zootec. (Online) ; 73(4): 821-826, Jul.-Aug. 2021. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1285277

ABSTRACT

Canine atopic dermatitis is an inflammatory, genetic, pruritic and chronic dermatosis that affects between 10 and 30% of dogs and one of the most important allergens is grass pollen. The objective of this study was to evaluate the sensitization to grass pollen allergens in dogs with canine atopic dermatitis and to compare intradermal skin test (IDT) with percutaneous test (PT). For this study, ten healthy dogs and 39 dogs with atopic dermatitis were tested. Dogs were submitted to IDT and PT for Lolium multiflorum, Cynodon dactylon and Paspalum notatum. The IDT and PT tests were compared using the Proportion Test. All healthy dogs were negative to both tests. Ten atopic dogs (25.6%) responded positively to the PT and none were positive in IDT. C. dactylon, L. multiflorum and P. notatum were responsible for positive reactions in 70%, 70% and 30% of positive dogs, respectively. The number of positive reactions in PT were statistically higher than IDT (P<0.05). In conclusion, grass pollen can be important source of allergens for dogs in Paraná state (Brazil) and the PT showed higher sensitization to grass pollen in dogs with atopic dermatitis than IDT.(AU)


A dermatite atópica canina é uma dermatose inflamatória, genética, prurítica e crônica que afeta entre 10% e 30% dos cães, e um dos alérgenos mais importantes são os polens de gramíneas. O objetivo deste estudo é avaliar a sensibilização a alérgenos de polens de gramíneas em cães com dermatite atópica e comparar o teste intradérmico (TID) com o teste percutâneo (TP). Para o estudo, 10 cães hígidos e 39 cães com dermatite atópica foram testados. Estes foram submetidos ao TID e ao TP para Lolium multiflorum, Cynodon dactylon e Paspalum notatum. TID e TP foram comparados usando-se o teste de proporção. Todos os cães hígidos foram negativos em ambos os testes. Dez cães atópicos (25,6%) responderam positivamente ao TP e nenhum ao TID. C. dactylon, L. multiflorum e P. notatum foram responsáveis por reações positivas de 70%, 70% e 30% dos cães positivos, respectivamente. O número de reações positivas no TP foi estatisticamente maior que no TID (P<0,05). Foi concluído que os polens de gramíneas podem ser importantes fontes de alérgenos para cães no estado do Paraná (Brasil) e que o TP mostrou maior sensibilização a polens em cães com dermatite atópica que o TID.(AU)


Subject(s)
Animals , Dogs , Pollen/adverse effects , Allergens/analysis , Dermatitis, Atopic/veterinary , Lolium , Skin Tests/veterinary , Cynodon , Paspalum , Poaceae/adverse effects
5.
An. bras. dermatol ; 95(6): 696-701, Nov.-Dec. 2020. tab
Article in English | ColecionaSUS, LILACS, ColecionaSUS | ID: biblio-1142127

ABSTRACT

Abstract Background: Cosmetics are part of the daily life of the population, and their use can lead to allergic contact dermatitis. Objectives: To assess the profile of patients diagnosed with allergic contact dermatitis to cosmetics treated at a referral center for 13 years, as well as the characteristics of the clinical picture and allergens involved. Methods: This was a retrospective study, with analysis of medical records of patients attended at this service. The individuals included had a diagnostic hypothesis of allergic contact dermatitis to cosmetics and had previously been submitted to epicutaneous tests. Results: A total of 1405 medical records were analyzed, 403 (28.7%) with suspected allergic contact dermatitis to cosmetics and 232 (16.5%) with confirmed diagnosis. Of these, 208 (89.7%) were women, and the age group most affected was 31 − 60 years. The most common locations were face in 195 cases (25.8%), cervical region in 116 (15.3%), and trunk in 96 (12.6%). The main allergens in the contact tests were toluene-sulfonamide-formaldehyde resin in 69 cases (29.7%), paraphenylenediamine in 54 (26.3%), Kathon CG® in 41 (20.7%), and fragrance-mix 1 in 29 (16.4%). In 154 (66.4%) of the 232 patients with a confirmed diagnosis of allergic contact dermatitis to cosmetics it was possible to specify the cosmetic product responsible for the lesions. Study limitations: The absence of some allergens considered important in the world as causes of allergic contact dermatitis, which are not readily accessible among us. Conclusions: The data of the analyzed population (predominance of young women), as well as the location of the lesions (face and cervical area) and the main allergens involved were consistent with those from the world literature.


Subject(s)
Humans , Female , Dermatitis, Allergic Contact/diagnosis , Dermatitis, Allergic Contact/etiology , Dermatitis, Allergic Contact/epidemiology , Cosmetics/adverse effects , Patch Tests , Allergens/adverse effects , Retrospective Studies
6.
An. bras. dermatol ; 95(6): 724-727, Nov.-Dec. 2020. graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS | ID: biblio-1142124

ABSTRACT

Abstract Insect bites and bite wounds are quite common and most often have mild repercussions in humans. Statistics on the incidence of accidents caused by insects are not available, and the skin reactions after the bites are not always known. The authors present two cases of patients with hemorrhagic blisters on their hands after tabanidae bites and discuss the factors that cause the problem and the importance of the differential diagnosis of blisters with hemorrhagic content on human skin.


Subject(s)
Humans , Prurigo , Skin Diseases, Vesiculobullous , Insect Bites and Stings/complications , Insect Bites and Stings/diagnosis , Skin , Allergens
8.
Rev. chil. nutr ; 47(3): 463-469, jun. 2020. tab
Article in English | LILACS | ID: biblio-1126145

ABSTRACT

The addition of soy proteins, currently classified as a food allergen, into meat products is a commonly used practice due to its functional properties and low cost. Its addition to meat products can cause health problems for individuals allergic to these proteins. Allergic individuals can be affected by the ingestion of low amounts of the allergen. In Brazil, limits are set for the addition of soy proteins in meat products in order to avoide fraud. Starting in 2015 reporting the name of the added component became mandatory for all food labelling. Some studies have reported that food processing can reduce the allergenicity, either by irreversible removal of allergens or by modifying the allergen structure. However, the technological approach to decrease allergenicity has largely been empirical. This review describes the use of soy protein in meat products and the health risk for allergic individuals and consumers of these products. Finally, appropriate methodologies for the detection and quantification of these proteins must be further explored and established to avoid fraud and to preserve consumer health.


La adición de proteínas de soya, actualmente clasificadas como alergeno alimentario, en los productos cárnicos es una práctica comúnmente utilizada debido a sus propiedades funcionales y bajo costo. Su adición en productos cárnicos puede causar problemas de salud en personas alérgicas a estas proteínas. Las personas alérgicas pueden verse afectadas por la ingestión de cantidades diminutas de alérgeno. En Brasil, se establecen límites para la adición de proteínas de soya en los productos cárnicos con el objetivo de evitar el fraude. Solo en 2015 se hizo obligatoria la declaración en la etiqueta de todos los alimentos que indicaban la presencia de sustancias alérgicas, así como el nombre del componente. Algunos estudios se refieren al procesamiento de alimentos para reducir la alergenicidad, ya sea mediante la eliminación irreversible de alergenos o modificando la estructura del alergeno; sin embargo, el enfoque tecnológico hasta ahora para disminuir la alergenicidad ha sido en gran medida empírico. Esta revisión describe el uso de proteína de soya en los productos cárnicos y el riesgo que puede causar para la salud de las personas alérgicas y a los consumidores de estos productos. Finalmente, las metodologías apropiadas para la detección y cuantificación de estas proteínas deben explorarse en profundidad y establecerse para evitar el fraude y preservar la salud de los consumidores.


Subject(s)
Humans , Plant Proteins, Dietary/adverse effects , Soybean Proteins/adverse effects , Food Hypersensitivity/etiology , Meat Products , Allergens , Health Risk , Food Hypersensitivity/prevention & control , Epitopes
9.
Gac. méd. espirit ; 22(1): 81-89, ene.-abr. 2020. tab
Article in Spanish | LILACS | ID: biblio-1124827

ABSTRACT

RESUMEN Fundamento: Las enfermedades alérgicas constituyen un problema de salud mundial y los ácaros se encuentran entre sus principales agentes etiológicos. Objetivo: Describir el comportamiento de la sensibilización cutánea en pacientes alérgicos, utilizando extractos de ácaros Valergen. Metodología: Se realizó una investigación observacional transversal con 488 pacientes alérgicos de edades entre 5 y 55 años, de ambos sexos; a los cuales se les realizaron pruebas cutáneas con extractos alergénicos de ácaros en el período 2010-2017. Resultados: El 90.8 % de los pacientes mostró sensibilización cutánea positiva a los extractos utilizados, el 58.4 % fue del grupo de edades entre 5 y 14 años, el 51.2 % pertenecía al sexo femenino, predominaron los pacientes con rinitis y asma; la sensibilización cutánea en los pacientes con estas patologías alcanzó una positividad del 90.1 % y 90.6 % respectivamente; un 38.5 % de los pacientes tuvo como ácaro con mayor positividad al VALERGEN-DP (Dermatophagoides pteronyssinus). Conclusiones: Los extractos de ácaros VALERGEN-DP (Dermatophagoides pteronyssinus) de producción nacional, mostraron alta sensibilización cutánea en los pacientes alérgicos objeto de estudio; el ácaro de mayor positividad fue el VALERGEN-DP (Dermatophagoides pteronyssinus), seguido del VALERGEN-BT (Blomia tropicalis).


ABSTRACT Background: Allergic diseases are a global health problem and mites are among its main etiological agents. Objective: To describe the behavior of skin sensitization in allergic patients, using Valergen mite extracts. Methodology: A cross-sectional observational investigation was carried out with 488 allergic patients being 5 and 55 years old, from both sexes; which were made skin tests with allergenic extracts of mites in the period 2010-2017. Results: 90.8 % of the patients showed positive skin sensitization to the extracts used, 58.4 % were from between the 5 and 14 age group, 51.2 % were female, patients with rhinitis and asthma predominated; skin sensitization in patients with these pathologies reached a positivity of 90.1 % and 90.6 % respectively; 38.5 % of patients had a mite with greater positivity to VALERGEN-DP (Dermatophagoides pteronyssinus). Conclusions: Nationally produced extracts of VALERGEN-DP mites (Dermatophagoides pteronyssinus) showed high skin sensitization in the allergic patients under study; the most positive mite was VALERGEN-DP (Dermatophagoides pteronyssinus), followed by VALERGEN-BT (Blomia tropicalis).


Subject(s)
Allergens , Hypersensitivity , Skin Manifestations , Mites
10.
Rev. odontol. UNESP (Online) ; 49: e20200067, 2020. tab
Article in Portuguese | LILACS, BBO | ID: biblio-1144885

ABSTRACT

Resumo Introdução É por meio da interação entre ambiente, indivíduo, sua predisposição à atopia e exposição a alérgenos que surgem as doenças alérgicas. Em crianças atópicas, foi observada uma alta prevalência de padrão respirador bucal, assim como resposta positiva a testes alérgicos. Essas alterações respiratórias possuem uma associação com deformidades orofaciais, especialmente as maloclusões. Objetivo Identificar a frequência de crianças e adolescentes portadores de alergias e buscar uma provável associação entre atopia e maloclusão, traumatismos dentoalveolares e hábitos bucais viciosos. Material e método Foram avaliados prontuários de crianças e adolescentes atendidos em duas instituições particulares de ensino da cidade do Rio de Janeiro no período compreendido entre agosto de 2017 e julho de 2018. Foram coletados dados do prontuário relacionados ao histórico médico, odontológico e de alergias. Os dados foram analisados descritivamente e por meio do teste qui-quadrado (p<0,05). Resultado Um total de 136 prontuários foi considerado elegível para avaliação. Durante a anamnese, 49 responsáveis (36%) relataram histórico de alergias em suas crianças e adolescentes. A prevalência de hábitos bucais viciosos foi verificada em 87 pacientes (64%), sendo presente em 65,3% de crianças e adolescentes que apresentavam atopia (p<0,05). Conclusão A prevalência de alergias relatada nesta população foi de 34,6%, e foi observada ainda uma alta prevalência de hábitos bucais viciosos e traumatismos dentoalveolares nesses pacientes. Foram constatadas associações significativas entre presença de atopias e histórico de traumatismos dentários, maloclusão e hábitos viciosos, demonstrando haver correlação entre atopia e alguns aspectos de saúde oral.


Abstract Introduction Allergic diseases appear through the interaction between the environment, the individual, their predisposition to atopy and exposure to allergens. In atopic children there is a high prevalence of mouth breathers, as well as positive response to allergic prick tests. These respiratory changes have an association with orofacial deformities especially malocclusions. Objective To identify the frequency of children and adolescents that have atopies and search for a probable association between atopy and oral aspects like malocclusion and vicious oral habits. Material and method Medical records were taken of children and adolescents seen at two educational institutions in the city of Rio de Janeiro in the period between August 2017 and July 2018. Data were collected from medical records related to medical history, history of atopies and dental history. The data were transmitted descriptively through the chi-square test (p<0.05). Result A total of 136 records were considered eligible for evaluation. During the anamnesis, 49 (36.0%) parents reported a history of atopy in their children adolescents. The prevalence of vicious oral habits was found in 87 children and adolescents (64.0%), being presented in 65.3% of the patients who had atopy (p<0.05). Conclusion It can be observed that the prevalence of atopy reported in this population was 34.6% and there was also a high prevalence of vicious oral habits and dento-alveolar trauma in these patients. Relevant associations between the presence of atopies and history of dental trauma, malocclusion and the presence of oral vicious habits were observed, demonstrating a correlation between atopy and some aspects of oral health.


Subject(s)
Male , Female , Child, Preschool , Child , Adolescent , Allergens , Oral Health , Mouth Breathing , Tooth Injuries , Rhinitis, Allergic , Malocclusion , Mouth
11.
Article in English | WPRIM | ID: wpr-762182

ABSTRACT

PURPOSE: Data are lacking on the association between the allergic rhinitis (AR) phenotype and sensitization to specific allergens or bronchial hyperresponsiveness (BHR) in children. We here investigated risk factors and comorbidities, including sensitization to specific allergens and BHR, for the AR phenotype by AR and its Impact on Asthma (ARIA) classification in a general population-based birth cohort study. METHODS: We enrolled 606 children aged 7 years from the Panel Study of Korean Children. The AR phenotype was assigned in accordance with the ARIA classification in children. Skin prick tests and Provocholine provocation test were performed. Risk factors and comorbidities for AR phenotypes were then analyzed. RESULTS: The prevalence of mild and moderate to severe AR in our study cohort was 37.2% and 8.8%, respectively. Recent use of analgesics or antipyretics and current cat ownership were associated with the risk of mild persistent AR. Sensitizations to Dermatophagoides Pteronyssinus (Der p), Japanese hop and cat were associated with moderate to severe persistent AR. Children with moderate to severe AR had a higher risk of current asthma and BHR compared to mild AR cases (adjusted odds ratio [aOR], 5.26; 95% confidence interval [CI], 1.77–15.62). Moderate to severe AR with allergic sensitization was associated with the highest risk of BHR (aOR, 11.77; 95% CI, 3.40–40.74). CONCLUSIONS: Moderate to severe-persistent AR is more closely related to respiratory comorbidities and sensitizations than mild AR. Stratifying the AR phenotype by ARIA classification may assist in disease management.


Subject(s)
Allergens , Analgesics , Animals , Antipyretics , Asian Continental Ancestry Group , Asthma , Bronchial Hyperreactivity , Cats , Child , Classification , Cohort Studies , Comorbidity , Dermatophagoides pteronyssinus , Disease Management , Humans , Methacholine Chloride , Odds Ratio , Ownership , Parturition , Phenotype , Prevalence , Rhinitis, Allergic , Risk Factors , Skin
12.
Article in English | WPRIM | ID: wpr-762175

ABSTRACT

PURPOSE: Occupational asthma may be induced by high- or low-molecular weight allergens (HMWA or LMWA, respectively). The study was conducted to compare the pattern of bronchial response in 200 HMWA-induced asthmatics (n = 130) and LMWA-induced asthmatics (n = 70). METHODS: The study participants underwent a single-blind, placebo-controlled specific inhalation challenge (SIC) with workplace allergens, accompanied by evaluation of non-specific bronchial hyperresponsiveness (NSBHR) with methacholine before and after the SIC. RESULTS: A single early bronchial response more frequently occurred in HMWA-induced asthmatics than in LMWA-induced asthmatics (86.2% vs. 20%). An isolated late bronchial response or atypical patterns were more frequently observed in LMWA-induced asthmatics than in LMWA-induced asthmatics (45.7% vs. 3.8% or 34.3% vs. 10%, respectively). Baseline NSBHR before SIC was more often detected in LMWA-induced asthmatics than in HMWA-induced asthmatics (81.4% vs. 54.6%), and the median value of the provocation concentration of methacholine was relevantly lower in these patients before and after SIC. A significant 3-fold increase in NSBHR after SIC was observed more often in LMWA-induced asthmatics than in HMWA-induced asthmatics (82.8% vs. 66.1%). In addition, compared to LMWA-induced asthmatics, HMWA-induced asthmatics were older, were more frequently active smokers, showed lower level of NSBHR, and more frequently continued their work in harmful occupational exposure. CONCLUSIONS: The results of this study suggest that HMWA-induced asthmatics may have milder clinical courses and that there is a possibility of job continuation despite asthma exacerbation requiring medical surveillance.


Subject(s)
Allergens , Asthma , Asthma, Occupational , Bronchial Hyperreactivity , Humans , Immunoglobulin E , Inhalation , Methacholine Chloride , Molecular Weight , Occupational Exposure , Prognosis
14.
Asia Pacific Allergy ; (4): 9-2020.
Article in English | WPRIM | ID: wpr-785456

ABSTRACT

BACKGROUND: Recently, the prevalence of food allergies during childhood is increasing, with fruits being common allergens. However, data on allergens that cause fruit and vegetable allergies and pollen-food allergy syndrome (PFAS) in childhood are relatively few. This study aimed to examine the allergens in fruit and vegetable allergies in pediatric patients and to determine the association between fruit and vegetable allergies and PFAS.OBJECTIVE: This study aimed to examine the current status of fruit and vegetable allergies in Japanese children.METHODS: This was a multicenter case series observational study. The participants included children aged <15 years who developed allergic symptoms after eating fruits and vegetables and subsequently received treatment in the Pediatric Department of 6 hospitals in the Osaka Prefecture in Japan during the study period from August 2016 to July 2017. Participants' information was obtained using a questionnaire, and data were obtained by performing several types of allergy tests using blood samples.RESULTS: A total of 97 children (median age, 9 years; 56 males) were included in the study. Apple was the most common allergen, followed by peach, kiwi, cantaloupe, and watermelon. A total of 74 participants (76%) exhibited allergic symptoms due to PFAS; moreover, pathogenesis-related protein-10 (PR-10) was the most common allergen superfamily. On the contrary, in the group where neither PR-10 nor profilin was sensitized, kiwi and banana were the most common allergens, and the age of onset was lower than that in the PFAS group. Specific antibody titer was significantly associated with Birch for Bet v1 and latex for Bet v2 (r = 0.99 and r = 0.89).CONCLUSION: When we examine patients with fruit and vegetable allergies, we should first consider PFAS even in childhood specifically for children greater than 4 years old.


Subject(s)
Age of Onset , Allergens , Asian Continental Ancestry Group , Betula , Child , Citrullus , Clinical Study , Cucumis melo , Eating , Food Hypersensitivity , Fruit , Humans , Hypersensitivity , Japan , Latex , Musa , Observational Study , Prevalence , Profilins , Prunus persica , Rhinitis , Rhinitis, Allergic, Seasonal , Vegetables
15.
Article in Korean | WPRIM | ID: wpr-785351

ABSTRACT

PURPOSE: Recently, the prevalence of allergic rhinitis (AR) in Korean children has been increased. The aim of this study was to investigate the clinical characteristics of rhinitis and to compare clinical parameters between AR and nonallergic rhinitis (NAR) in children.METHODS: We retrospectively reviewed the medical records of 1,034 children under 18 years of age who visited Korea University Anam Hospital for rhinitis symptoms from January 2008 to December 2017. Clinical data, including clinical features, comorbidities, blood test results, allergen sensitization profile, and pulmonary function test parameters, were collected.RESULTS: Among the 1,034 children with rhinitis, 737 (71.3%) were AR and 297 (28.7%) were NAR. The prevalence of AR gradually increased with age. The median levels of eosinophil count (4.1%), serum total IgE (204.4 IU/L), eosinophil cationic protein (ECP) concentration (17.9 µg/L), and fractional exhaled nitric oxide (FeNO) (22.0 ppb) were significantly higher in children with AR than in those with NAR. The sensitization rate to the inhalant allergens increased with age; however, food allergen sensitization rate tended to decrease. Median levels of eosinophil count, total IgE, ECP, and FeNO were significantly higher in the poly-sensitized group than in the mono-sensitized and nonsensitized groups.CONCLUSION: More than 70% of Korean children who have rhinitis symptoms are AR. Children with AR more likely to have higher levels of FeNO and bronchial asthma. Poly-sensitized children showed increased rates of atopic dermatitis and bronchial asthma.


Subject(s)
Allergens , Asthma , Child , Comorbidity , Dermatitis, Atopic , Eosinophil Cationic Protein , Eosinophils , Hematologic Tests , Humans , Immunoglobulin E , Korea , Medical Records , Nitric Oxide , Prevalence , Respiratory Function Tests , Retrospective Studies , Rhinitis , Rhinitis, Allergic
16.
Article in Chinese | WPRIM | ID: wpr-879780

ABSTRACT

OBJECTIVE@#To study the association between maternal Th1/Th2 immune level at different pregnancy stages and cow's milk protein allergy (CMPA) in infants.@*METHODS@#The healthy women with a singleton pregnancy, as well as their offspring, who attended Yidu Central Hospital of Weifang and Qingzhou Traditional Chinese Medicine Hospital from July 2016 to December 2018 were enrolled. The maternal levels of interleukin-2 (IL-2), interferon gamma (IFN-γ), interleukin-4 (IL-4), and interleukin-10 (IL-10) at the second and third trimesters of pregnancy were measured. A CMPA questionnaire survey was conducted within one year after birth. Food avoidance and cow's milk oral challenge tests were performed in infants suspected of CMPA. The 48 infants who met the diagnostic criteria for CMPA were included in the observation group, and the remaining 977 normal infants were included in the control group. A univariate analysis was performed on the infants with CMPA. A Poisson regression analysis was used to determine the association between maternal Th1/Th2 immune factors at different pregnancy stages and CMPA.@*RESULTS@#The detection rate of CMPA was 4.68%. The clinical manifestations included the symptoms of the digestive system, skin, and respiratory system and other symptoms. The univariate analysis showed that compared with the control group, the observation group had significantly higher incidence rates of maternal food allergy and maternal history of allergic diseases (P<0.05) and a significantly lower breastfeeding rate (P<0.05). The observation group had significantly lower maternal levels of IL-2 (second and third trimesters) and IFN-γ (third trimester) than the control group (P<0.05). Maternal low IFN-γ at the third trimester and maternal low IL-2 at the second and third trimesters were significantly associated with CMPA in infants (P<0.05). After correction of the factors of breastfeeding, maternal food allergy, and maternal history of allergic diseases, it was found that maternal low IL-2 and IFN-γ at the third trimester were still significantly associated with CMPA in infants (P<0.05).@*CONCLUSIONS@#The maternal decrease in Th1 level at the third trimester of pregnancy may lead to the change in fetal immunity and thus increase the risk of CMPA in offspring.


Subject(s)
Allergens , Animals , Breast Feeding , Cattle , Female , Humans , Infant , Milk Hypersensitivity , Milk Proteins/immunology , Pregnancy
17.
Article in Chinese | WPRIM | ID: wpr-879777

ABSTRACT

OBJECTIVE@#To investigate the incidence of systemic reactions (SR) to subcutaneous immunotherapy (SCIT) for bronchial asthma and/or allergic rhinitis in children and their risk factors.@*METHODS@#A retrospective analysis was performed on 198 children with bronchial and/or allergic rhinitis. According to the presence or absence of SR and local reactions (LR) during SCIT, the patients were divided into two groups: SR (with SR and LR, n=31) and control (without SR or LR, n=142). A multivariate logistic regression analysis was used to determine the risk factors associated with SR.@*RESULTS@#Among the 198 patients who received 8 157 injections of SCIT, 25 (12.6%) experienced SR (31 times, 0.38%), including grade I SR (18 times, 58%), grade II SR (10 times, 32%), grade III SR (3 times, 10%), and no grade IV SR. The multivariate logistic regression analysis showed that multiple sensitization with both food and inhaled allergens, specific IgE to dust mites (grade 6), total IgE (grade 6), and a history of LR were independent risk factors for SR (P<0.05).@*CONCLUSIONS@#SCIT is a safe treatment for bronchial asthma and/or allergic rhinitis in children, with a low incidence of SR. Children with multiple sensitization with both food and inhaled allergens, a hypersensitive state (specific IgE to dust mites, grade 6; total IgE, grade 6), and a history of LR have an increased risk of SR to SCIT.


Subject(s)
Allergens , Animals , Asthma/drug therapy , Child , Desensitization, Immunologic , Humans , Injections, Subcutaneous , Retrospective Studies , Rhinitis, Allergic/therapy , Risk Factors
18.
J. venom. anim. toxins incl. trop. dis ; 26: e20200051, 2020. tab, graf, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1143215

ABSTRACT

The relationship between slow loris (Nycticebus spp.) venom (BGE protein) and the major cat allergen (Fel d 1) from domestic cat (Felis catus) is known for about two decades. Along this time, evidence was accumulated regarding convergences between them, including their almost identical mode of action. Methods: Large-scale database mining for Fel d 1 and BGE proteins in Felidae and Nycticebus spp., alignment, phylogeny proposition and molecular modelling, associated with directed literature review were assessed. Results: Fel d 1 sequences for 28 non-domestic felids were identified, along with two additional loris BGE protein sequences. Dimer interfaces are less conserved among sequences, and the chain 1 shows more sequence similarity than chain 2. Post-translational modification similarities are highly probable. Conclusions: Fel d 1 functions beyond allergy are discussed, considering the great conservation of felid orthologs of this protein. Reasons for toxicity being found only in domestic cats are proposed in the context of domestication. The combination of the literature review, genome-derived sequence data, and comparisons with the venomous primate slow loris may point to domestic cats as potentially poisonous mammals.(AU)


Subject(s)
Animals , Cats , Poisoning , Allergens , Cats , Felidae , Lorisidae
19.
Rev. Hosp. Niños B.Aires ; 62(276): 22-27, 2020.
Article in Spanish | LILACS | ID: biblio-1099902

ABSTRACT

En la actualidad no se reconocen tratamientos definitivos de curación para las reacciones alérgicas a los alimentos, siendo la forma más eficaz, la prevención, es decir eliminar los alérgenos de las dietas de aquellos individuos con sensibilidad a componentes que desencadenen efectos adversos. Existe un número importante de alimentos que en su contenido poseen dichos alérgenos. Cuando por alguna razón de salud, los niños deben ser hospitalizados, las instituciones públicas que poseen Centros de Elaboración de Fórmulas Lácteas Infantiles, son los responsables de proporcionar la alimentación láctea. Esta alimentación que brindan los servicios de nutrición de los hospitales representa uno de los pilares fundamentales en la recuperación y/o mantenimiento de la salud del paciente hospitalizado. En referencia a la gestión de los alérgenos en hospitales públicos, es necesario prestar especial atención a todo el proceso que desarrolla el servicio. Dada la ausencia de guías para la prevención del contacto cruzado por alérgenos en servicios hospitalarios y muy especialmente en aquellos donde se elaboran fórmulas lácteas infantiles, en este trabajo, se presentan las directrices básicas para evitar su producción


At present, definitive treatments of cure for allergic reactions to food are not recognized, being the most effective way, prevention, that is, eliminating allergens from the diets of those individuals with sensitivity to components that trigger adverse effects. There are a significant number of foods that contain such allergens in their content. When, for any reason of health, children must be hospitalized for treatment, the public institutions that have Infant Milk Formulation Centers are responsible for providing milk feeding. This food provided by the hospital's nutrition services represents one of the fundamental pillars in the recovery and/or maintenance of the hospitalized patient's health. In reference to the management of allergens in public hospitals, it is necessary to pay special attention to the entire process that develops the service. Given the absence of guidelines for the prevention of cross-contamination by allergens in hospital services and especially in those where infantile milk formulas are elaborated, in this work, the basic guidelines to avoid their production are presented


Subject(s)
Humans , Allergens , Infant Food , Food, Formulated , Food Supply , Hypersensitivity
20.
Einstein (Säo Paulo) ; 18: eRC5478, 2020. graf
Article in English | LILACS | ID: biblio-1142868

ABSTRACT

ABSTRACT A 33-year-old male with house dust mite allergic rhinitis and asthma reported an episode of facial and lip angioedema, dyspnea, cough and dysphagia at the age of 25, minutes after eating a mushroom ( Agaricus bisporus ) pizza. He denied any drug intake, hymenoptera stings or other possible triggers, and no identifiable cofactors were present. Since then he avoided all types of mushrooms, however an accidental contact occurred with mushroom sauce that resulted in angioedema of the lip within minutes. The allergy workup included measurements of total IgE and specific IgE to mushroom, and skin prick test to aeroallergens sources, possible food allergen sources and mushroom extract, a prick to prick test with raw and cooked A. bisporus , in addition to a SDS-PAGE and immunoblotting assay. The study revealed a specific IgE to mushroom of 0.76kUA/L positive skin prick test to mushroom extract, and prick to prick test positive to white and brown A. bisporus (raw and cooked). The immunoblotting identified two IgE binding proteins with 10kDa and 27kDa. We report a case of A. bisporus anaphylaxis probably due to primary mushroom sensitization. We detected two IgE-reactive proteins with 10kDa and 27kDa as possible culprit allergens.


RESUMO Paciente do sexo masculino, 33 anos, com asma e rinite alérgica desencadeadas por ácaros, relatou episódio de angioedema facial e labial, dispneia, tosse e disfagia aos 25 anos, minutos após a ingestão de uma pizza de cogumelo ( Agaricus bisporus ). O paciente negou consumo de medicamentos, picadas de himenópteros, ou quaisquer outros possíveis desencadeadores ou cofatores que pudessem estar presentes. Desde então, evita todos os tipos de cogumelos, até a ocorrência de um contato acidental com molho de cogumelo, que resultou em angioedema labial minutos após. O estudo imunoalergológico incluiu doseamento de IgE total e específica para cogumelos, testes cutâneos para aeroalérgenos, possíveis alérgenos alimentares e extrato de cogumelos, teste prick to prick com A. bisporus cru e cozido e teste de SDS-PAGE immunoblotting . O estudo revelou IgE específica para cogumelos de 0,76kUA/L, teste cutâneo positivo para extrato de cogumelos e teste prick to prick positivo para A. bisporus branco e castanho (cru e cozido). O immunoblotting identificou duas proteínas de ligação de IgE, de 10kDa e 27kDa. Relatamos, assim, um caso de anafilaxia por ingestão de A. bisporus , provavelmente explicado por sensibilização primária a cogumelos. Detectamos duas proteínas IgE-reativas de 10kDa e 27kDa como os possíveis alérgenos responsáveis.


Subject(s)
Humans , Animals , Male , Adult , Cats , Agaricus , Deglutition Disorders/etiology , Cough/etiology , Dyspnea/etiology , Food Hypersensitivity/immunology , Anaphylaxis/etiology , Angioedema/etiology , Immunoglobulin E/blood , Skin Tests , Allergens , Alternaria , Flour , Anaphylaxis/chemically induced
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