Evaluation of Der p 10 in a Cohort of European Children: Role of Molecular Diagnostics and Clinical Features.

Background: Allergy toward the dust mite is steadily increasing on the European continent. This sensitization may be a risk factor for developing sensitization to other mite molecules such as tropomyosin Der p 10. This molecule often correlates with food allergy and the risk of anaphylaxis after ingesting mollusks and shrimps. Materials and Methods: We analyzed the sensitization profiles by ImmunoCAP ISAC of pediatric patients from 2017 to 2021. The patients under investigation were being followed for atopic disorders such as allergic asthma and food allergies. The study aimed to analyze the prevalence of sensitization toward Der p 10 in our pediatric population and assess the related clinical symptoms and reactions after ingestion of foods containing tropomyosins. Results: This study included 253 patients; 53% were sensitized toward Der p 1 and Der p 2; 10.4% were also sensitized to Der p 10. Assessing patients sensitized to Der p 1 or Der p 2, and Der p 10, we observed that 78.6% were affected by asthma (p < 0.005) and had a history of prior anaphylaxis after ingestion of shrimp or shellfish (p < 0.0001). Conclusion: The component-resolved diagnosis gave us a deeper understanding of patients' molecular sensitization profiles. Our study showed that a fair proportion of children sensitive to Der p 1 or Der p 2 are also sensitive to Der p 10. However, many patients sensitized to all three molecules had a high risk of asthma and anaphylaxis. Therefore, the assessment of Der p 10 sensitization should be considered in atopic patients with sensitization to Der p 1 and Der p 2 to avoid encountering possible adverse reactions after ingesting foods containing tropomyosins.

Avaliação do perfil epidemiológico das hepatites virais no Brasil - 2010 A 2021 / Evaluation of the epidemiological profile of viral hepatitis in Brazil - 2010 to 2021

As hepatites virais são doenças que apresentam elevado impacto de morbimortalidade no mundo, sendo assim, consideradas um grave problema para a saúde pública. Nos últimos anos o enfrentamento das hepatites virais tem sido um grande desafio, principalmente para os países com alta prevalência de vulnerabilidades sociais. Medidas de controle e prevenção da doença devem ser tomadas, por isso torna-se necessário a realização de estudos que contemplem conhecimentos sobre a dinâmica epidemiológica das hepatites para demonstrar sua importância em relação a saúde pública. Objetivo: O objetivo nesta pesquisa foi analisar o perfil epidemiológico das hepatites virais no Brasil, no período de 2010 a 2021. Método: Realizou-se um estudo transversal, descritivo, retrospectivo e qualiquantitativo que utilizou como unidades de análise as unidades federativas brasileiras. Os dados foram coletados a partir das informações disponíveis no site TABNET/DATASUS, DCCI, e a estimativa da população anual absoluta foi obtida no Instituto Brasileiro de Geografia e Estatística (IBGE). Resultados: No período analisado foram registrados 476.981 casos de hepatites virais no Brasil, destacando-se a notificação de casos de hepatite C, seguida pela hepatite B, A e D. Com relação a taxa de incidência, a Região Norte destacou-se para hepatite A e D, e a Região Sudeste para hepatite B e C. O sexo do indivíduo acometido em todos os tipos de hepatite virais analisados que se destacou foi o masculino, mas com pouca diferença do feminino. Foram registrados 25.553 óbitos, sendo 78,3% devido à hepatite C. A presente pesquisa nos permitiu concluir que o tipo de hepatite mais relatada no Brasil é a tipo C, assim como a que mais provoca óbitos. Todas as hepatites virais apresentaram queda nas notificações no ano de 2020 e 2021 e por isso este fato deve ser analisado pelos setores de vigilância pois pode se tratar de subnotificações, principalmente devido a situação do país neste período, que enfrentava a pandemia de COVID-19

Viral hepatitis is a disease with a high impact on morbidity and mortality worldwide and hence considered a serious problem for public health. Fighting viral hepatitis has been a major challenge in recent years, especially for countries with a high prevalence of social vulnerabilities. Measures to control and prevent the disease must therefore be taken, so studies that include knowledge about the epidemiological dynamics of hepatitis are warranted to demonstrate its importance to public health. In the objective of the present study was to analyze the epidemiological profile of viral hepatitis in Brazil in the period from 2010 to 2021. A cross-sectional, descriptive, retrospective, and qualitative-quantitative investigation was carried out using the federative units of Brazil as units of analysis. Data were collected from information available on the TABNET/DATASUS, DCCI website, and the absolute annual population estimate was obtained from the Brazilian Institute of Geography and Statistics (IBGE). In the analyzed period, 476,981 cases of viral hepatitis were recorded in Brazil, the majority of which referred to hepatitis C, followed by hepatitis B, A, and D. As regards the incidence rate, the north region stood out with hepatitis A and D; and the southeast region with hepatitis B and C. Males prevailed between the genders of individuals affected, considering all types of viral hepatitis analyzed, but with little difference from females. A total of 25,553 deaths were recorded, 78.3% of which were due to hepatitis C. Conclusions: The present study allowed us to conclude that the most reported type of hepatitis in Brazil is type C, which is also the most death-causing. There was a drop in notifications of all viral hepatitis in 2020 and 2021, and this fact should be analyzed by surveillance sectors as it may be a situation of underreporting, due mainly to the COVID-19 pandemic crisis the country was facing in the period

An Overview on the Primary Factors That Contribute to Non-Allergic Asthma in Children.

The prevalence of non-allergic asthma in childhood is low, peaking in late adulthood. It is triggered by factors other than allergens, like cold and dry air, respiratory infections, hormonal changes, smoke and air pollution. In the literature, there are few studies that describe non-allergic asthma in pediatric age. Even though it is a less common disorder in kids, it is crucial to identify the causes in order to keep asthma under control, particularly in patients not responding to conventional treatments. In this review, we discuss non-IgE-mediated forms of asthma, collecting the latest research on etiopathogenesis and treatment.

(R)Evolution in Allergic Rhinitis Add-On Therapy: From Probiotics to Postbiotics and Parabiotics.

Starting from the "Hygiene Hypothesis" to the "Microflora hypothesis" we provided an overview of the symbiotic and dynamic equilibrium between microbiota and the immune system, focusing on the role of dysbiosis in atopic march, particularly on allergic rhinitis. The advent of deep sequencing technologies and metabolomics allowed us to better characterize the microbiota diversity between individuals and body sites. Each body site, with its own specific environmental niches, shapes the microbiota conditioning colonization and its metabolic functionalities. The analysis of the metabolic pathways provides a mechanistic explanation of the remote mode of communication with systems, organs, and microflora of other body sites, including the ecosystem of the upper respiratory tract. This axis may have a role in the development of respiratory allergic disease. Notably, the microbiota is significant in the development and maintenance of barrier function; influences hematopoiesis and innate immunity; and shows its critical roles in Th1, Th2, and Treg production, which are necessary to maintain immunological balance and promote tolerance, taking part in every single step of the inflammatory cascade. These are microbial biotherapy foundations, starting from probiotics up to postbiotics and parabiotics, in a still-ongoing process. When considering the various determinants that can shape microbiota, there are several factors to consider: genetic factors, environment, mode of delivery, exposure to antibiotics, and other allergy-unrelated diseases. These factors hinder the engraftment of probiotic strains but may be upgradable with postbiotic and parabiotic administration directly on molecular targets. Supplementation with postbiotics and parabiotics could represent a very exciting perspective of treatment, bypassing probiotic limitations. At present, this avenue remains theoretical and to be explored, but it will certainly be a fascinating path to follow.

Metabolic-associated fatty liver disease from childhood to adulthood: State of art and future directions.

In 2020, an international group of experts proposed to replace the term of nonalcoholic fatty liver disease with metabolic-associated fatty liver disease (MAFLD). This recent proposal reflects the close association of fatty liver with metabolic derangements, as demonstrated by previous robust data. Several factors [including genetics, inflammation, metabolic abnormalities, insulin resistance (IR), obesity, prenatal determinants, and gut-liver axis] have been found to be involved in MAFLD pathophysiology, but this tangled puzzle remains to be clearly understood. In particular, IR has been recognized as a key player in metabolic impairments development in children with fatty liver. On this ground, MAFLD definition focuses on the pathophysiological basis of the disease, by emphasizing the crucial role of metabolic impairments in this condition. Although primarily developed for adults, MAFLD diagnostic criteria have been recently updated with an age-appropriate definition for sex and age percentiles, because of the increasing attention to cardiometabolic risk in childhood. To date, accumulating evidence is available on the feasibility of MAFLD definition in clinical practice, but some data are still conflicting in highly selected populations. Considering the growing prevalence worldwide of fatty liver and its close relationship with metabolic dysfunction both in children and adults with subsequent increased cardiovascular risk, early strategies for MAFLD identification, treatment and prevention are needed. Novel therapeutic insights for MAFLD based on promising innovative biological techniques are also emerging. We aimed to summarize the most recent evidence in this intriguing research area both in children and adults.