115 research outputs found

    Consensus statement of the Italian society of pediatric allergy and immunology for the pragmatic management of children and adolescents with allergic or immunological diseases during the COVID-19 pandemic

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    The COVID-19 pandemic has surprised the entire population. The world has had to face an unprecedented pandemic. Only, Spanish flu had similar disastrous consequences. As a result, drastic measures (lockdown) have been adopted worldwide. Healthcare service has been overwhelmed by the extraordinary influx of patients, often requiring high intensity of care. Mortality has been associated with severe comorbidities, including chronic diseases. Patients with frailty were, therefore, the victim of the SARS-COV-2 infection. Allergy and asthma are the most prevalent chronic disorders in children and adolescents, so they need careful attention and, if necessary, an adaptation of their regular treatment plans. Fortunately, at present, young people are less suffering from COVID-19, both as incidence and severity. However, any age, including infancy, could be affected by the pandemic. Based on this background, the Italian Society of Pediatric Allergy and Immunology has felt it necessary to provide a Consensus Statement. This expert panel consensus document offers a rationale to help guide decision-making in the management of children and adolescents with allergic or immunologic diseases

    Heterogeneity of pollen food allergy syndrome in seven Southern European countries: The @IT.2020 multicenter study

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    Background Pollen food allergy syndrome (PFAS) is a frequently underdiagnosed disease due to diverse triggers, clinical presentations, and test results. This is especially relevant in geographic areas with a broad spectrum of pollen sensitization, such as Southern Europe. Objectives To elucidate similarities and differences of PFAS in nine Southern European centers and identify associated characteristics and unique markers of PFAS. Methods As part of the @IT.2020 Multicenter Study, 815 patients with seasonal allergic rhinitis (SAR), aged 10-60 years, were recruited in seven countries. They completed questionnaires regarding SAR, comorbidities, family history, and PFAS, and underwent skin prick testing (SPT) and serum IgE testing. Results Of the 815 patients, 167 (20.5%) reported PFAS reactions. Most commonly, eliciting foods were kiwi (58, 34.7%), peach (43, 25.7%), and melon (26, 15.6%). Reported reactions were mostly local (216/319, 67.7%), occurring within 5 min of contact with elicitors (209/319, 65.5%). Associated characteristics included positive IgE to at least one panallergen (profilin, PR-10, or nsLTP) (p = 0.007), maternal PFAS (OR: 3.716, p = 0.026), and asthma (OR: 1.752, p = 0.073). Between centers, heterogeneity in prevalence (Marseille: 7.5% vs. Rome: 41.4%, p < 0.001) and of clinical characteristics was apparent. Cypress played a limited role, with only 1/22 SPT mono-sensitized patients reporting a food reaction (p < 0.073). Conclusions PFAS is a frequent comorbidity in Southern European SAR patients. Significant heterogeneity of clinical characteristics in PFAS patients among the centers was observed and may be related to the different pollen sensitization patterns in each geographic area. IgE to panallergen(s), maternal PFAS, and asthma could be PFAS-associated characteristics

    Heterogeneity of pollen food allergy syndrome in seven Southern European countries: The @IT.2020 multicenter study

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    Background Pollen food allergy syndrome (PFAS) is a frequently underdiagnosed disease due to diverse triggers, clinical presentations, and test results. This is especially relevant in geographic areas with a broad spectrum of pollen sensitization, such as Southern Europe. Objectives To elucidate similarities and differences of PFAS in nine Southern European centers and identify associated characteristics and unique markers of PFAS. Methods As part of the @IT.2020 Multicenter Study, 815 patients with seasonal allergic rhinitis (SAR), aged 10-60 years, were recruited in seven countries. They completed questionnaires regarding SAR, comorbidities, family history, and PFAS, and underwent skin prick testing (SPT) and serum IgE testing. Results Of the 815 patients, 167 (20.5%) reported PFAS reactions. Most commonly, eliciting foods were kiwi (58, 34.7%), peach (43, 25.7%), and melon (26, 15.6%). Reported reactions were mostly local (216/319, 67.7%), occurring within 5 min of contact with elicitors (209/319, 65.5%). Associated characteristics included positive IgE to at least one panallergen (profilin, PR-10, or nsLTP) (p = 0.007), maternal PFAS (OR: 3.716, p = 0.026), and asthma (OR: 1.752, p = 0.073). Between centers, heterogeneity in prevalence (Marseille: 7.5% vs. Rome: 41.4%, p < 0.001) and of clinical characteristics was apparent. Cypress played a limited role, with only 1/22 SPT mono-sensitized patients reporting a food reaction (p < 0.073). Conclusions PFAS is a frequent comorbidity in Southern European SAR patients. Significant heterogeneity of clinical characteristics in PFAS patients among the centers was observed and may be related to the different pollen sensitization patterns in each geographic area. IgE to panallergen(s), maternal PFAS, and asthma could be PFAS-associated characteristics

    “Whole” vs. “fragmented” approach to EAACI pollen season definitions: A multicenter study in six Southern European cities

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    Background: The adequate definition of pollen seasons is essential to facilitate a correct diagnosis, treatment choice, and outcome assessment in patients with seasonal allergic rhinitis. A position paper by the European Academy of Allergy and Clinical Immunology (EAACI) proposed season definitions for Northern and Middle Europe. Objective: To test the pollen season definitions proposed by EAACI in six Mediterranean cities for seven pollen taxa. Methods: As part of the @IT.2020 multi-center study, pollen counts for Poaceae, Oleaceae, Fagales, Cupressaceae, Urticaceae (Parietaria spp.), and Compositae (Ambrosia spp., Artemisia spp.) were collected from January 1 to December 31, 2018. Based on these data, pollen seasons were identified according to EAACI criteria. A unified monitoring period for patients in AIT trials was created and assessed for feasibility. Results: The analysis revealed a great heterogeneity between the different locations in terms of pattern and length of the examined pollen seasons. Further, we found a fragmentation of pollen seasons in several segments (max. 8) separated by periods of low pollen counts (intercurrent periods). Potential monitoring periods included often many recording days with low pollen exposure (max. 341 days). Conclusion: The Mediterranean climate leads to challenging pollen exposure times. Monitoring periods for AIT trials based on existing definitions may include many intermittent days with low pollen concentrations. Therefore, it is necessary to find an adapted pollen season definition as individual solution for each pollen and geographical area

    The developmental pattern of homologous and heterologous tRNA methylation in rat brain differential effect of spermidine

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    Using S -adenosyl- L -[Me- 14 C] methionine, rat cerebral cortex methyltransferase activity was determined during the early postnatal period in the absence of added Escherichia coli tRNA and in its presence. [Me- 14 C] tRNA was purified from both systems and its [Me- 14 C] base composition determined. The endogenous formation of [Me- 14 C] tRNA (homologous tRNA methylation) was totally abolished in the presence of 2.5 mM spermidine, whereas E. coli B tRNA methylation (heterologous methylation) was markedly stimulated. Only [Me- 14 C] 1-methyl guanine and [Me- 14 C] N 2 -methyl guanine were formed by homologous methylation, there being an inverse shift in their relative proportions with age. Heterologous tRNA methylation led, additionally, to the formation of [Me- 14 C] N 2 2 -dimethyl guanine, 5-methyl cytosine, 1-methyl adenine, 5-methyl uracil, 2-methyl adenine, and 1-methyl hypoxanthine. A comparison of heterologous tRNA methylation between the whole brain cortex (containing nerve and glial cells) and bulk-isolated nerve cell bodies revealed markedly lower proportions of [Me- 14 C] N 2 -methyl and N 2 2 -dimethyl guanine and significantly higher proportions of [Me- 14 C] 1-methyl adenine in the neurons. The present findings suggest (1) that homologous tRNA methylation may provide developing brain cells with continuously changing populations of tRNA and (2) that neurons are enriched in adenine residue-specific tRNA methyltransferases that are highly sensitive to spermidine.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45399/1/11064_2004_Article_BF00966229.pd

    Le emozioni guidano le scelte nel mondo della finanza?

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    Una questione controversa in ambito economico-finanziario è se i mercati finanziari siano governati da processi razionali o da risposte emotive. L'ipotesi del marker somatico sostiene che i processi decisionali dipendano dalle emozioni e che la sensibilità a premi e punizioni sia associata a livelli differenti di risposta anticipatoria di conduttanza cutanea rispetto alle scelte vantaggiose o svantaggiose. Questo studio ha lo scopo di testare le implicazioni della Ipotesi del Marker Somatico sulle scelte di investimento e sull'assunzione di rischio in ambito finanziario. In particolare, verrà studiato il pattern di risposte di conduttanza cutanea che precede e segue le scelte e discrimina fra prestazioni ottimali e non in compiti in grado di valutare la presa di decisione in situazioni ambigue. L'Iowa Gambling Task è stato costruito con l'intento di creare una situazione sperimentale controllata, ma anche il più ecologico possibile, che riproduca un contesto di decision-making in condizioni di incertezza con premi e punizioni in pali

    Neuroscience and risk tolerance in financial decision-making processes

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    Per le scienze della mente le nostre decisioni scaturiscono dall\u2019interazione continua tra processi razionali e processi emotivi. Questo articolo presenta le anticipazioni di una ricerca che approfondisce alcuni aspetti della componente emotiva che interviene nell\u2019assunzione del rischio in finanza. Dalla collaborazione interdisciplinare tra studiosi di neuroscienze e di discipline finanziarie \ue8 derivata una serie di esperimenti svolti su un campione vasto e stratificato di individui, con competenze differenti: clienti e dipendenti di banche, promotori finanziari, trader ed asset manager. In essi si mettono a confronto la validit\ue0 di misurazioni di tolleranza al rischio classiche (questionari) e di tecniche meno consuete per il mondo della finanza (test psicofisiologici). The sciences of mind recognize that our decisions arise from the interaction between rational and emotional processes.This article explores some aspects of the emotional components acting in financial risk decision making process.The research has been conducted on a large stratified sample of individuals and professionals and has compared the classical systems for measuring risk tolerance and most innovative techniques applied by neuroscience

    Biased or unbiased risk tolerance in the financial decision making

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    The aim of the research is to shed light on the emotional side of a risk taking behaviour. The paper relies on a structured empirical research based on an innovative cross-disciplinary approach, mixing financial competences with others, related to psychology and affective neuroscience. Our aim is to measure, on the one hand, the unbiased risk perception (UR) of individuals, an on the other hand, the (biased) self-evaluated risk perception (SR). We are willing to discover the degree of coherence between the two subjective measures of risk, and to depict their relationship with the real investment/debt decisions of individuals. Age, profession, education and much other socio-cultural and economical personal information are used to explain both the levels of these measures of risk (UR and SR) and the presence/absence of coherence between them

    Risk Tolerance in the financial decision making

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    This book focuses on the risk tolerance which clearly influences financial decision making. The book holds the results of an empirical research aimed at investigating the emotional side of a risk taking behaviour, identifying any subjective obstacle restricting the individual ability to take conscious investment and debt decisions
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