European annals of allergy and clinical immunology最新文献

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The role of basophil activation test in venom ımmunotherapy: comparative evaluation with specific IgE and skin prick tests, ınnovative approaches. 嗜碱性粒细胞活化试验在毒液免疫疗法中的作用:与特异性 IgE 和皮肤点刺试验的比较评估,创新方法。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-31 DOI: 10.23822/EurAnnACI.1764-1489.353
S I Kokcu Karadag, S Özen Çökelez, E Bekar Çepniler, E Abdullayev, O Terzi, D Özçeker, R Sancak, A Yıldıran
{"title":"The role of basophil activation test in venom ımmunotherapy: comparative evaluation with specific IgE and skin prick tests, ınnovative approaches.","authors":"S I Kokcu Karadag, S Özen Çökelez, E Bekar Çepniler, E Abdullayev, O Terzi, D Özçeker, R Sancak, A Yıldıran","doi":"10.23822/EurAnnACI.1764-1489.353","DOIUrl":"https://doi.org/10.23822/EurAnnACI.1764-1489.353","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> In diagnosing insect venom allergy and making immunotherapy decisions, clinical history, skin tests, and specific serum IgE levels are commonly utilized. This study aims to emphasize the clinical significance of using the basophil activation test in accurately identifying sensitivities in individuals with insect venom allergy and to compare its effectiveness with other testing methods. <b>Methods.</b> This study included a total of 43 patients, who experienced at least one systemic allergic reaction following insect stings and were deemed suitable for immunotherapy.Basophil activation test, specific serum IgE levels, and skin prick test results utilized in making immunotherapy treatment decisions were recorded. <b>Results.</b> Our study determined that the overall clinical sensitivities of the basophil activation test (BAT), specific serum IgE (spIgE), and skin prick test (SPT) for apis mellifera were 95.5%, 95.7%, and 48.4% respectively, while for vespula vulgaris, they were 83.3%, 100%, and 33.3%. Based on these results, the prediction of systemic reactions to bee stings is ordered as spIgE > BAT > SPT. Additionally, early-stage skin prick tests showed a sensitivity of 67% and specificity of 50% at a cut-off value of 1.5 mm, and 33% sensitivity and 83% specificity at 2.5 mm. <b>Conclusions.</b> This study demonstrates that the basophil activation test (BAT) can provide a high positive predictive value in immunotherapy treatment decisions and offer significant insights in clinical practices.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional characterization of complete and immunodominant epitopes of a novel pollen allergen from Parthenium hysterophorus. 一种来自 Parthenium hysterophorus 的新型花粉过敏原的完整表位和免疫显性表位的功能特征。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-31 DOI: 10.23822/EurAnnACI.1764-1489.355
S Reddy Boreddy, C M Mariaselvam, B N Reni Micheal, K Vallayyachari, S N Bulusu, M M Thabah, M Padukudru Anand, T Madhavan, V Singh Negi
{"title":"Functional characterization of complete and immunodominant epitopes of a novel pollen allergen from Parthenium hysterophorus.","authors":"S Reddy Boreddy, C M Mariaselvam, B N Reni Micheal, K Vallayyachari, S N Bulusu, M M Thabah, M Padukudru Anand, T Madhavan, V Singh Negi","doi":"10.23822/EurAnnACI.1764-1489.355","DOIUrl":"10.23822/EurAnnACI.1764-1489.355","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> Parthenium hysterophorus pollen induces chronic clinical conditions such as allergic rhinitis and bronchial asthma. Among the plethora of proteins in the pollens, only few were reported to induce allergy. Currently sensitization to P. hysterophorus pollen allergen is diagnosed by skin prick test (SPT) using the entire pollen extract instead of using the specific allergen. <b>Methods.</b> In P. hysterophorus sensitized patients, SPT was done using the crude pollen extract, 40 kDa allergenic pollen protein and two commercially synthesized allergen epitopes (17 and 24) of P. hysterophorus. Dot-blot of allergen epitopes was done using P. hysterophorus sensitized sera. Crude pollen extract (1, 1.25, 2.5, 5 and 10 µg/mL), 40 kDa allergenic protein (3 µg/mL), and allergen epitopes (3µg/mL) were used to perform Basophil Activation Test (BAT). <b>Results.</b> Crude pollen extract at 2.5, 5, 10 μg/mL and 40 kDa allergenic protein at 3μg/mL concentrations induced wheal and flare reaction by around 15 minutes, whereas commercially synthesized allergen epitopes at 3μg/mL induced wheal and flare reactions in less than 10 minutes. Allergen epitopes (3 µg/mL) revealed strong reactivity with sensitized patient's IgE in dot-blot analysis. Basophil activation Test using crude pollen extract (2.5, 5, 10 µg/mL), 40 kDa allergenic protein (3 µg/mL), and allergenic epitopes (3µg/mL) indicated significant basophil activation (as measured by CD63 expression) in sensitized patients. <b>Conclusions.</b> The 40 kDa allergenic protein and its allergenic epitopes (17 and 24) induced phenotypic and cellular immune responses in P. hysterophorus sensitized individuals. The tested allergenic epitopes (17 and 24) induced faster wheal and flare reactions in comparison with the crude extract and the 40 kDa allergenic protein. The novel 40kDa allergenic protein and its allergen epitopes identified here may be useful for the development of component-resolved diagnosis (CRD) while also serving as a potential therapeutic lead for desensitization treatment for P. hysterophorus pollen induced allergy.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Severity of papular urticaria in children is associated with specific IgG4 anti-salivary gland antigens from Aedes aegypti. 儿童丘疹性荨麻疹的严重程度与埃及伊蚊的特异性 IgG4 抗唾液腺抗原有关。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-02 DOI: 10.23822/EurAnnACI.1764-1489.352
R Tschoepke Aires, E S Goudouris, F Pinto-Mariz, S Almeida da Silveira, A Gomes da Silva
{"title":"Severity of papular urticaria in children is associated with specific IgG4 anti-salivary gland antigens from Aedes aegypti.","authors":"R Tschoepke Aires, E S Goudouris, F Pinto-Mariz, S Almeida da Silveira, A Gomes da Silva","doi":"10.23822/EurAnnACI.1764-1489.352","DOIUrl":"https://doi.org/10.23822/EurAnnACI.1764-1489.352","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> Papular Urticaria (PU) is a cutaneous hypersensitivity disorder triggered by hematophagous arthropod bites. Despite being a common condition, especially in tropical environments, many knowledge gaps are observed for this disease. The main objective of this study was to investigate the patterns of humoral immune response to mosquito antigens in children with PU and establish a correlation between this response and the severity of clinical symptoms. <b>Methods.</b> An analytical cross-sectional observational study was carried out. Clinical and sociodemographic data and children's blood samples were collected to measure the specific antibodies from: 1. A. aegypti salivary gland antigens; 2. A. aegypti whole body antigens (both produced in the laboratory of the Center for Health Sciences at the Federal University of Rio de Janeiro). A PU severity score based on clinical data is proposed to correlate disease severity with antibody reactivity signatures. <b>Results.</b> According to the clinical data, 58.9% of children received high severity scores. A significant statistical correlation was found between patients with high PU severity score and the development of symptoms before the age of two (p = 0.0326) and high IgG4 anti-salivary gland antigens concentration (p less than 0.05). <b>Conclusion.</b> It is suggested that PU severity in children is associated with a high concentration of IgG4 anti-salivary gland antigens from Aedes aegypti. Further studies are recommended to deepen the understanding of the mechanisms involved.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141491401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vitulia questionnaire: a new instrument to evaluate quality of life in children aged 4-7 years with food allergy. Vitulia 问卷:评估 4-7 岁食物过敏儿童生活质量的新工具。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2024-01-15 DOI: 10.23822/EurAnnACI.1764-1489.322
F Galletta, S Fasola, S La Grutta, G B Pajno, S Passanisi, G Salzano, A Barbalace, I Panasiti, F Dimasi, L Caminiti
{"title":"Vitulia questionnaire: a new instrument to evaluate quality of life in children aged 4-7 years with food allergy.","authors":"F Galletta, S Fasola, S La Grutta, G B Pajno, S Passanisi, G Salzano, A Barbalace, I Panasiti, F Dimasi, L Caminiti","doi":"10.23822/EurAnnACI.1764-1489.322","DOIUrl":"10.23822/EurAnnACI.1764-1489.322","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> Food allergy (FA) negatively affects health-related quality of life (HR-QoL) of children and caregivers. To date, no questionnaire self-compiling assessing the HR-QoL in pre-school children with FA is available. The aim of this study is to develop and validate a self-administered, rapid and easy questionnaire to evaluate the HR-QoL in children ≥ 7 years with IgE-mediated FA. <b>Methods.</b> A two-center prospective study was conducted including children aged 4-7 years with IgE-mediated FA. The Vitulia questionnaire was administered to study participants at the baseline (T0) and after one month (T1). To assess the feasibility and reliability, the Vitulia questionnaire was compared with other two pre-existing questionnaires: FAQLQ-PF and the KiddyKindl, which were also tested at both T0 and T1. The validation phase aimed to assess the following psychometric properties: convergent validity, internal consistency, discriminant validity and sensitivity to change. <b>Results.</b> One hundred patients (62% male, mean age 5.4 ± 1.2 years) were enrolled. The Vitulia questionnaire showed a good internal consistency along with an excellent reliability and repeatability of the measure. Another noteworthy feature of the questionnaire was its discriminant validity as demonstrated by the ability to provide different scores in subgroups, which have differences in terms of quality of life. On the other hand, the questionnaire seems not be sensitive to changes in health status over time. <b>Conclusions.</b> The Vitulia questionnaire represents a valid tool, quick and easy to interpret, which can be used to assess the quality of life in preschool children with IgE-mediated FA.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"188-191"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139466321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Why is pet (cat/dog) allergen immunotherapy (AIT) such a controversial topic? Current perspectives and future directions. 为什么宠物(猫/狗)过敏原免疫疗法(AIT)是一个如此有争议的话题? 当前观点和未来方向。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2024-02-13 DOI: 10.23822/EurAnnACI.1764-1489.330
G Liccardi, M Martini, M B Bilò, L Cecchi, M Milanese, L Brussino, E Motta, P Rogliani
{"title":"Why is pet (cat/dog) allergen immunotherapy (AIT) such a controversial topic? Current perspectives and future directions.","authors":"G Liccardi, M Martini, M B Bilò, L Cecchi, M Milanese, L Brussino, E Motta, P Rogliani","doi":"10.23822/EurAnnACI.1764-1489.330","DOIUrl":"10.23822/EurAnnACI.1764-1489.330","url":null,"abstract":"<p><strong>Summary: </strong>Dogs and cats are the most common pets worldwide. In Italy, the prevalence of allergic sensitization to cats and dogs is 16% and 9% respectively. The limited standardization of allergenic extracts, especially for dogs, emphasizes the importance of Component Resolved Diagnosis (CRD) for accurate diagnosis and subsequent prescription of allergen immunotherapy (AIT). However, this low standardization is the main factor contributing to the unsatisfactory clinical efficacy of traditional AIT, AIT with modified allergens, and intralymphatic allergen-specific immunotherapy (ILAIT). Emerging immunological approaches, particularly for controlling the primary cat allergen, show promise but are hindered by high costs (e.g., use of anti-Fel d 1 monoclonal antibodies in humans) or by exclusively targeting Fel d 1 produced by one's own animal (e.g., immunizing cats to induce neutralizing antibodies against Fel d 1 or including an egg product with anti Fel d 1 IgY antibodies in feline diet). Further studies are imperative for standardizing pet allergens, enhancing the efficacy of various AIT modalities, and exploring other immunological approaches, to optimize the relationship between pets and their owners and prevent distressing \"forced removals\".</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"188-191"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139722156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunological and molecular study in children with combined immunodeficiency. 联合免疫缺陷儿童的免疫学和分子研究
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2023-02-14 DOI: 10.23822/EurAnnACI.1764-1489.286
S Kholoussi, A Ramadan, N Kholoussi, E A Ashaat, A G Fayez, H A Raouf, I Helwa, N N Esmaiel, R Ghorab, A M Abo-Shanab
{"title":"Immunological and molecular study in children with combined immunodeficiency.","authors":"S Kholoussi, A Ramadan, N Kholoussi, E A Ashaat, A G Fayez, H A Raouf, I Helwa, N N Esmaiel, R Ghorab, A M Abo-Shanab","doi":"10.23822/EurAnnACI.1764-1489.286","DOIUrl":"10.23822/EurAnnACI.1764-1489.286","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> Severe combined immunodeficiency (SCID) is a form of immunodeficiencies (PID), caused by molecular defects. These defects can restrict the development and function of lymphocytes. Early diagnosis and treatment of SCID can lead to disease-free survival. This study aims to investigate some of the possible underlying genetic defects in a group of Egyptian infants and children with clinical and immunological profiles suggestive of SCID. <b>Methods.</b> This study included eighty patients who showed clinical warning signs of immunodeficiency. Subjects were thoroughly examined clinically. Laboratory evaluation included immunoglobulins serum levels and flow cytometric assessment of immune cells. This testing showed an altered immune profile in thirty patients. They had decreased T and/or B lymphocytes or natural killer cells. DNA extraction was done for those cases. The coding regions of the RAG1 gene and RAG2 gene was investigated for hot spot mutations by sequencing technique guided by the patient clinical evaluation, inheritance pattern, immunophenotyping by flow cytometric analysis of lymphocyte subsets, and serum immunoglobulins level detection. <b>Results.</b> Results showed novel and previously reported variants (mutation, polymorphism), they were found in 18 cases which include variants in the RAG1 gene (E880K, A960A, H249R, S913R, K820R, V782G), and variants in the RAG2 gene (P501T, L514M, rs10836573, cDNA.2129A>T). <b>Conclusions.</b> To evaluate SCID patients completely, mutation gene analysis is highly required and recommended.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"161-168"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10706900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrafast regimen for Pru p3 sublingual immunotherapy (SLIT-Peach®) in patients with anaphylactic LTP-Syndrome. 针对过敏性 LTP-Syndrome 患者的 Pru p3 舌下免疫疗法(SLIT-Peach®)超快速疗法。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2023-02-14 DOI: 10.23822/EurAnnACI.1764-1489.285
M S Zamarro Parra, Y Petryk Petryk, J Carbonell Zamoran, A Carbonell Martinez
{"title":"Ultrafast regimen for Pru p3 sublingual immunotherapy (SLIT-Peach®) in patients with anaphylactic LTP-Syndrome.","authors":"M S Zamarro Parra, Y Petryk Petryk, J Carbonell Zamoran, A Carbonell Martinez","doi":"10.23822/EurAnnACI.1764-1489.285","DOIUrl":"10.23822/EurAnnACI.1764-1489.285","url":null,"abstract":"<p><strong>Summary: </strong>Sublingual immunotherapy with Pru p3 extract (SLIT-peach<sup>®</sup>) is used in allergy patients to multiple plant foods to induce tolerance to nonspecific lipid transfer proteins (nsLTP). The aim of this paper is to communicate the efficacy of a new ultrafast regimen. Until now on the initiation regimen lasts four days. We present a number of 22 patients with LTP-syndrome due to ingestion of different vegetable foods sensitized to Pru p3. According to European Academy of Allergy position paper (1) food immunotherapy is indicated when avoidance measures are ineffective, undesirable, or cause serious limitations on patients quality of life. Our patients had an impact on their quality of life (score > 130) before SLIT measured with (2) EuroPrevall Food Allergy Quality of Life Questionnaire (FAQLQ). The ultrafast regimen in one day is achieved in the 95% of our patients. Mild adverse reactions were observed, such as oral pruritus presence in almost all patients. Only one patient (5%) achieved the maintenance dose in two days due to intense oral pruritus. No patients presented systemic reactions. The maintenance dose achieved consists of 4 drops (0,16 ml) from vial number 4 daily. The concentration of Pru p3 in vial nº4 is 50 cg/ml. Four drops a day equals 8 micrograms of Pru p3. This new ultrafast regimen in one day is secure in patients with LTP-Syndrome to induce tolerance to SLIT-peach<sup>®</sup> (Pru p3 extract).</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"183-187"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10706899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical characterization of peach allergic patients and respective molecular sensitization profile with ALEX®2 macroarray. 利用 ALEX®2 宏阵列分析桃过敏症患者的临床特征和各自的分子致敏特征。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2023-02-14 DOI: 10.23822/EurAnnACI.1764-1489.284
M I T Silva, R Brás, M Paulino, F Cabral Duarte, M C Pereira Santos, C Costa
{"title":"Clinical characterization of peach allergic patients and respective molecular sensitization profile with ALEX®2 macroarray.","authors":"M I T Silva, R Brás, M Paulino, F Cabral Duarte, M C Pereira Santos, C Costa","doi":"10.23822/EurAnnACI.1764-1489.284","DOIUrl":"10.23822/EurAnnACI.1764-1489.284","url":null,"abstract":"","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"188-191"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10699853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A real-life cohort of mepolizumab treatment in severe eosinophilic asthma. 美妥珠单抗治疗重度嗜酸性粒细胞性哮喘的真实队列。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2023-03-16 DOI: 10.23822/EurAnnACI.1764-1489.289
D Laorden, I Hernández, J Domínguez-Ortega, D Romero, R Álvarez-Sala, S Quirce
{"title":"A real-life cohort of mepolizumab treatment in severe eosinophilic asthma.","authors":"D Laorden, I Hernández, J Domínguez-Ortega, D Romero, R Álvarez-Sala, S Quirce","doi":"10.23822/EurAnnACI.1764-1489.289","DOIUrl":"10.23822/EurAnnACI.1764-1489.289","url":null,"abstract":"<p><strong>Summary: </strong><b>Background.</b> Mepolizumab, a monoclonal antibody that interacts with IL-5, was the first anti-IL-5 approved for uncontrolled severe eosinophilic asthma. In several randomised, placebo-controlled trials, treatment with mepolizumab has shown a significant improvement in asthma symptoms and the need to use of oral corticosteroids (OCS). Several studies have correlated blood levels of eosinophil cationic protein (ECP) with the degree of eosinophilic inflammation, which could make it an indirect marker of eosinophilic activity. <b>Methods.</b> This was a single-centre retrospective study that included all patients diagnosed with severe eosinophilic asthma under treatment with mepolizumab. We recorded the number of exacerbations, daily prednisone intake, asthma control test scores and forced expiratory volume in the first second. <b>Results.</b> We followed 22 patients, 14 of whom were OCS-dependent with a mean daily dose of 15.85 ± 15.62 mg prednisone. After 12 months, only five continued taking OCS and the mean daily dose was reduced by up to 2.50 ± 3.84 mg (p less than 0.007). The exacerbation rate at baseline was 2.91 ± 2.27 and decreased to 0.82 ± 1.14 in the following year (p less than 0.001). ACT scores increased significantly from 16.00 ± 5.85 to 20.71 ± 4.45 after six months (p = 0.003). We also observed a decrease in ECP from 81.46 ± 43.99 µg/L to 19.12 ± 18.80 µg/L (p > 0.001). <b>Conclusions.</b> These real-life results are consistent with previous clinical trials demonstrating the efficacy and safety of mepolizumab in routine clinical practice for severe uncontrolled eosinophilic asthma. We observed a significant decrease in blood eosinophil counts and in ECP levels, suggesting a reduction in eosinophil activity following mepolizumab treatment.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"169-175"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9476301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IgE-mediated reactivity to non-specific lipid transfer protein (nsLTP): clinical implications and management ‒ a consensus document of the Association of Italian Territorial and Hospital Allergists and Immunologists (AAIITO). IgE介导的对非特异性脂质转移蛋白(nsLTP)的反应性:临床意义和管理——意大利地区和医院过敏学家和免疫学协会(AAIITO)的共识文件。
IF 2.6
European annals of allergy and clinical immunology Pub Date : 2024-07-01 Epub Date: 2023-10-20 DOI: 10.23822/EurAnnACI.1764-1489.316
R Asero, V Pravettoni, D Villalta, L Cecchi, E Scala
{"title":"IgE-mediated reactivity to non-specific lipid transfer protein (nsLTP): clinical implications and management ‒ a consensus document of the Association of Italian Territorial and Hospital Allergists and Immunologists (AAIITO).","authors":"R Asero, V Pravettoni, D Villalta, L Cecchi, E Scala","doi":"10.23822/EurAnnACI.1764-1489.316","DOIUrl":"10.23822/EurAnnACI.1764-1489.316","url":null,"abstract":"<p><strong>Summary: </strong>The primary cause of adult-onset food allergy in Mediterranean countries is IgE-mediated reactivity to non-specific Lipid Transfer Protein (nsLTP), with a prevalence of 9.5% in Italy. nsLTP is heat- and pepsin-stable due to its 3D structure, causing severe allergic reactions, even anaphylaxis. It's conserved across plants and a \"panallergen\" due to homologous forms in various vegetable foods. Found in Rosaceae fruits' skin, it's categorized into nsLTP1 (9 kDa) and nsLTP2 (7 kDa), representing 93% and 7% of the molecules described to date, respectively. Pru p 3 (nsLTP1) from peach is a primary sensitizer, binding more epitopes than other homologs. Cross-reactivity varies in sensitized patients, influenced by IgE levels. Clinical manifestations range from none to various symptoms. Managing patients sensitized to nsLTP without clinical allergy is a challenge. Sensitization hierarchy usually starts with peach, then expands through Prunoideae, Rosaceae, and other foods. Clinical symptoms don't always expand across LTPs. Patients can tolerate some nsLTP-containing foods and consuming them may maintain tolerance. The absence of guidelines led to the Associazione Allergologi Immunologi Italiani Territoriali e Ospedalieri (AAIITO) creating a consensus-based document. Strategies involve avoidance, self-injectable adrenaline, verification through in vivo and in vitro testing, considering cofactors, and peeling fruits. In localized reactions, abstinence is recommended if specific IgE is high. Concurrent pollinosis may complicates diagnosis, but may help management since symptoms are often less severe. Asymptomatic patients are advised to continue normal diets while considering cofactors and total IgE levels. Management strategies should be case-specific, based on expert Consensus Document.</p>","PeriodicalId":11890,"journal":{"name":"European annals of allergy and clinical immunology","volume":" ","pages":"176-182"},"PeriodicalIF":2.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49675767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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