• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 21
  • 21
  • 4
  • 1
  • 1
  • 1
  • Tagged with
  • 60
  • 60
  • 17
  • 17
  • 11
  • 7
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 5
  • 5
  • 5
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Avaliação da prevalência e das repercussões clínicas da associação entre doença pulmonar obstrutiva crônica e doença coronariana crônica / The prevalence and clinical implications of the association between chronic obstructive pulmonary disease and chronic coronary disease

Coelho, Liana Sousa [UNESP] 26 February 2016 (has links)
Submitted by LIANA SOUSA COELHO null (lianascoelho@gmail.com) on 2016-03-04T12:42:34Z No. of bitstreams: 1 Liana S Coelho Tese doutorado.pdf: 4949880 bytes, checksum: 8a00b19396b78d2b3710b90868709838 (MD5) / Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-03-04T17:42:42Z (GMT) No. of bitstreams: 1 coelho_ls_dr_bot.pdf: 4949880 bytes, checksum: 8a00b19396b78d2b3710b90868709838 (MD5) / Made available in DSpace on 2016-03-04T17:42:42Z (GMT). No. of bitstreams: 1 coelho_ls_dr_bot.pdf: 4949880 bytes, checksum: 8a00b19396b78d2b3710b90868709838 (MD5) Previous issue date: 2016-02-26 / A associação entre Doença Pulmonar Obstrutiva Crônica (DPOC) e Doença Arterial Coronariana (DAC) é importante causa de morbidade e mortalidade em pacientes com DPOC. Dados da literatura mostram que essa associação ocorre independente de fatores de risco comuns – tabagismo, idade e gênero e que o processo inflamatório pode ser o elo entre essas doenças. Além disso, a presença de comorbidades pode alterar de forma significativa a gravidade da DPOC e/ou DAC. O presente estudo tem como objetivos avaliar a prevalência da associação entre DPOC e DAC em pacientes com diagnóstico primário de uma das doenças e avaliar as características gerais dos pacientes com DPOC, DAC e ambas as doenças. Além disso, avaliar intensidade da dispneia, tolerância ao exercício, qualidade de vida, estado inflamatório e achados ecocardiográficos em cada grupo de pacientes. Foram avaliados 95 pacientes, de ambos os gêneros e idade ≥ 40 anos. Destes, 43 foram diagnosticados com DPOC, 47 com DAC e 5 com ambas as doenças. Todos foram submetidos a avaliação clínica, eletrocardiograma, ecocardiograma, radiograma de tórax, avaliação da composição corporal, teste de caminhada de 6 minutos (DP6), exames laboratoriais, espirometria e responderam aos questionários de qualidade de vida. A prevalência de DAC em DPOC foi de 10,4%, enquanto que no grupo de pacientes com DAC a prevalência de DPOC foi de 9,6% e, quando avaliados DAC tabagistas, foi de 17,2%. O grupo DPOC apresentou maior percepção de dispneia (p<0,001), menor DP6 (p=0,037), pior qualidade de vida, avaliada pelo SF-36 (p<0,001) e aumento da proteína C-reativa (PCR) (p=0,020) em comparação com grupo DAC. Regressão linear não identificou correlação entre o estado inflamatório avaliada por PCR e IL-6 à presença de DAC (p=0,992 e p=0,978, respectivamente). Em nosso estudo, a prevalência de DAC em DPOC assemelhou-se aos menores valores encontrados na literatura. Pacientes com ambas as doenças apresentaram maior intensidade de dispneia, pior qualidade de vida e maior estado inflamatório que os outros grupos. Não encontramos relação entre o estado inflamatório e a prevalência de DAC em DPOC; esta associação parece dever-se à alta prevalência dos fatores de risco clássicos para DAC nos pacientes com DPOC. / The association between Chronic Obstructive Pulmonary Disease (COPD) and coronary artery disease (CAD) is an important cause of morbidity and mortality in patients with COPD. Published data show that this association is independent of common risk factors - smoking, age and gender, and that the inflammatory process may be a link between these diseases. Furthermore, the comorbidities can significantly alter the severity of COPD and/or CAD. This study aims to evaluate the prevalence of the association between COPD and CAD in patients with a primary diagnosis of a disease and assessing the general characteristics of patients with COPD, CAD and both diseases. Also, to assess the severity of dyspnea, exercise tolerance, health status, inflammatory status, echocardiographic findings in each group of patients. We evaluated 95 patients of both genders and age ≥ 40 years-old. Of these, 43 were diagnosed with COPD, 47 with CAD and 5 with both diseases. All patients underwent clinical evaluation, electrocardiogram, echocardiogram, chest X-ray, assessment of body composition, 6-minute walk test, laboratory tests, spirometry and answered all health status’ questionnaires. The prevalence of CAD in COPD was 10.4% while in patients with CAD, the prevalence of COPD was 9.6%, and in DAC with smoking history, the prevalence was 17.2%. The COPD group had a higher perception of dyspnea (p<0.001), lower 6-minute walking distance (6MWD) (p=0.037), worse health status assessed by the SF-36 (p<0.001) and increased C-reactive protein (CRP) (p=0.020) compared to CAD group. Linear regression did not identify correlation between inflammatory status, assessed neither by CRP nor by IL-6, and the presence of CAD (p 0.992 and p 0.978, respectively). In our study, the prevalence of CAD in COPD resembles the lower values found in the literature. Patients with both diseases presented more intense dyspnea, lower exercise tolerance, worse health status and higher inflammatory status than other groups. There was no relationship between inflammatory status and the prevalence of CAD in COPD; this association is probably due to the high prevalence of classic risk factors for CAD in patients with COPD.
42

Avaliação da prevalência e das repercussões clínicas da associação entre doença pulmonar obstrutiva crônica e doença coronariana crônica

Coelho, Liana Sousa January 2016 (has links)
Orientador: Irma de Godoy / Resumo: A associação entre Doença Pulmonar Obstrutiva Crônica (DPOC) e Doença Arterial Coronariana (DAC) é importante causa de morbidade e mortalidade em pacientes com DPOC. Dados da literatura mostram que essa associação ocorre independente de fatores de risco comuns – tabagismo, idade e gênero e que o processo inflamatório pode ser o elo entre essas doenças. Além disso, a presença de comorbidades pode alterar de forma significativa a gravidade da DPOC e/ou DAC. O presente estudo tem como objetivos avaliar a prevalência da associação entre DPOC e DAC em pacientes com diagnóstico primário de uma das doenças e avaliar as características gerais dos pacientes com DPOC, DAC e ambas as doenças. Além disso, avaliar intensidade da dispneia, tolerância ao exercício, qualidade de vida, estado inflamatório e achados ecocardiográficos em cada grupo de pacientes. Foram avaliados 95 pacientes, de ambos os gêneros e idade ≥ 40 anos. Destes, 43 foram diagnosticados com DPOC, 47 com DAC e 5 com ambas as doenças. Todos foram submetidos a avaliação clínica, eletrocardiograma, ecocardiograma, radiograma de tórax, avaliação da composição corporal, teste de caminhada de 6 minutos (DP6), exames laboratoriais, espirometria e responderam aos questionários de qualidade de vida. A prevalência de DAC em DPOC foi de 10,4%, enquanto que no grupo de pacientes com DAC a prevalência de DPOC foi de 9,6% e, quando avaliados DAC tabagistas, foi de 17,2%. O grupo DPOC apresentou maior percepção de dispneia (p<0,001), m... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The association between Chronic Obstructive Pulmonary Disease (COPD) and coronary artery disease (CAD) is an important cause of morbidity and mortality in patients with COPD. Published data show that this association is independent of common risk factors - smoking, age and gender, and that the inflammatory process may be a link between these diseases. Furthermore, the comorbidities can significantly alter the severity of COPD and/or CAD. This study aims to evaluate the prevalence of the association between COPD and CAD in patients with a primary diagnosis of a disease and assessing the general characteristics of patients with COPD, CAD and both diseases. Also, to assess the severity of dyspnea, exercise tolerance, health status, inflammatory status, echocardiographic findings in each group of patients. We evaluated 95 patients of both genders and age ≥ 40 years-old. Of these, 43 were diagnosed with COPD, 47 with CAD and 5 with both diseases. All patients underwent clinical evaluation, electrocardiogram, echocardiogram, chest X-ray, assessment of body composition, 6-minute walk test, laboratory tests, spirometry and answered all health status’ questionnaires. The prevalence of CAD in COPD was 10.4% while in patients with CAD, the prevalence of COPD was 9.6%, and in DAC with smoking history, the prevalence was 17.2%. The COPD group had a higher perception of dyspnea (p<0.001), lower 6-minute walking distance (6MWD) (p=0.037), worse health status assessed by the SF-36 (p<0.001) ... (Complete abstract click electronic access below) / Doutor
43

Níveis sistêmicos e periodontais de citocinas durante a gestação : correlações e efeito da terapia periodontal

Fiorini, Tiago January 2012 (has links)
A doença periodontal tem sido frequentemente associada ao parto pretermo. A plausibilidade biológica para tal associação baseia-se na hipótese de uma inflamação sistêmica de baixa intensidade de origem periodontal. Entretanto, os estudos de intervenção que investigaram o efeito da terapia periodontal durante a gestação não observaram reduções significativas na incidência de prematuridade. Como diversas citocinas têm sido associadas tanto a doença periodontal quanto ao parto pretermo, cogita-se que elas desempenhem um papel importante na associação observada. Até o presente momento, pouco se sabe a respeito da correlação entre os níveis de citocinas no soro e no fluído crevicular gengival (FCG), assim como do efeito da terapia periodontal sobre esses marcadores de inflamação em gestantes. O objetivo desta tese foi avaliar a relação entre níveis sistêmicos e periodontais de biomarcadores inflamatórios relacionados com a resposta imune periodontal e também com os mecanismos de parto. Também investigou-se o efeito da terapia periodontal sobre os níveis dessas citocinas durante a gestação e 30 dias após o parto. Esta tese é composta por dois estudos que utilizaram uma sub-amostra de mulheres que haviam sido recrutadas para um ensaio clínico randomizado maior que investigou o efeito da terapia periodontal sobre a incidência de prematuridade. Mulheres entre 18-35 anos e com até 20 semanas de gestação foram aleatoriamente alocadas para receber tratamento periodontal não cirúrgico completo até a 24a semana de gestação (grupo teste) ou apenas uma consulta de uma remoção de cálculo supragingival (grupo controle). Dados clínicos e amostras de sangue e FCG foram coletadas no início do estudo, entre 26-28 semanas de gestação e 30 dias após o parto. Quatro sítios periodontais por paciente foram aleatoriamente selecionados para coleta de FCG entre aqueles com maior profundidade de sondagem. Os níveis de IL-1β, IL-6, IL-8, IL-10, IL- 12p70 e FNT-α foram analisados por citometria de fluxo. No estudo 1, investigou-se a correlação e concordância entre os níveis periodontais e sistêmicos dessas citocinas em 100 pacientes, utilizando dados coletados até a 20a semana de gestação. As pacientes apresentaram extensa inflamação e limitada destruição periodontal. A correlação entre os níveis de citocinas no soro e no FCG foi baixa e não significativa, com exceção da IL-12p70 que mostrou uma correlação moderada, porém significativa, entre as duas fontes (r=0.32, p=0.001). Os níveis de citocinas observados no FCG explicaram menos de 10% dos respectivos níveis observados no soro, com exceção da IL-12p70 em que eles foram responsáveis por 23% dos níveis séricos (p=0.0001, r2=0.23). A profundidade de sondagem e o sangramento a sondagem estiveram significativamente associados com os níveis de IL-1β, IL-6 e IL-8 no FCG, mas tiveram efeitos limitados sobre os níveis sistêmicos de todas as citocinas. No estudo 2, comparou-se o efeito da terapia periodontal durante a gestação (n=30) com uma consulta única de remoção de cálculo supragingival (n=30) sobre os níveis periodontais e sistêmicos dessas citocinas durante a gestação e 30 dias após o parto. Após o tratamento, uma redução drástica da inflamação periodontal foi observada no grupo teste, com o percentual de sangramento a sondagem reduzindo de 49.62% para 11.66% dos sítios (p<0.001). A terapia também reduziu significativamente os níveis de IL-1β e IL-8 (p<0.001) no FCG. Entretanto, nenhum efeito significativo do tratamento foi observado em relação aos níveis sistêmicos dessas citocinas. Após o parto, os níveis periodontais de IL-1β no grupo teste permaneceram significativamente menores que no grupo controle, enquanto que nenhuma diferença foi observada em relação aos níveis sistêmicos das outras citocinas avaliadas. Pode-se concluir que os níveis de citocinas no soro e FCG não estão significativamente associados em mulheres com extensa inflamação mas limitada destruição periodontal. Embora a terapia periodontal durante a gestação reduza significativamente o nível de citocinas no FCG, ela parece não ter um impacto considerável sobre os níveis sistêmicos desses biomarcadores. / Periodontal disease has been frequently associated with preterm birth. The biological plausibility for this association relies on the hypothesis of a low-grade systemic inflammation originated from periodontal disease. However, clinical studies that investigated the effect of periodontal therapy during pregnancy did not observe significant reductions in the incidence of prematurity. Several cytokines have been associated with both periodontal disease and preterm birth, and might play a key role in the observed association. To date, little is known about the correlation between serum and gingival crevicular fluid (GCF) cytokine levels, as well as the effect of periodontal therapy on these inflammatory markers in pregnant women. The aim of this thesis was to investigate the relationship between periodontal and systemic levels of inflammatory biomarkers related to periodontal immune response and also with the mechanisms of delivery. We also investigated the effect of periodontal therapy on serum and GCF cytokine levels during pregnancy and 30 days postpartum. This thesis consists of two studies that used a sub-sample of women who had been previously enrolled in a larger randomized controlled trial investigating the effect of periodontal therapy on the incidence of preterm birth. Women aged between 18-35 years and up to 20 weeks of gestation were randomly assigned to receive comprehensive nonsurgical periodontal treatment before the 24th gestational week (test group) or a single appointment of supragingival calculus removal (control group). Clinical data, blood and GCF samples were collected at baseline, between 26-28 weeks of gestation and 30 days postpartum. Four periodontal sites per patient were randomly selected for GCF collection among those with deepest probing depth. IL-1β, IL-6, IL-8, IL-10, IL-12p70 and TNF-α levels were analyzed using a cytometric bead array. In the study one, we investigated the correlation and agreement between periodontal and systemic levels of these cytokines in 100 patients, using data collected until 20 weeks of gestation. Patients presented widespread periodontal inflammation but limited destruction. The correlation between serum and GCF cytokine levels was low and not significant, except for IL-12p70, which showed a moderate but significant correlation between the two sources (r = 0.32, p = 0.001). The GCF cytokine levels observed explained less than 10% of the respective serum levels observed, except for IL-12p70, which was responsible for 23% of serum levels (p = 0.0001, r2 = 0.23). Probing depth and bleeding on probing were significantly associated with IL-1β, IL-6 and IL-8 GCF levels, but had limited effects on systemic levels of all cytokines. In the study two, we compared the effect of periodontal therapy during pregnancy (n=30) or a single appointment for supragingival calculus removal (n=30) on periodontal and systemic levels of these cytokines during pregnancy and 30 days postpartum. After treatment, a remarkable reduction of periodontal inflammation was observed in the test group, with bleeding on probing reducing from 49.62% to 11.66% of the sites (p<0.001). Periodontal therapy also significantly reduced IL-1β and IL-8 GCF levels (p<0.001). However, no significant differences due to therapy were observed regarding systemic levels of these cytokines. After delivery, IL-1β GCF levels in the test group remained significantly lower than in the control group, whereas no difference was observed for systemic levels of any other cytokine evaluated. It can be concluded that serum and GCF cytokine levels are not significantly associated in women with widespread periodontal inflammation but limited destruction. Although periodontal therapy during pregnancy significantly reduces GCF cytokine levels, it seems to have a negligible impact on systemic levels of these biomarkers.
44

Neuronal Mitofusin 2 Modulates Neuroinflammation in Acute Systemic Inflammation and Alleviates Pathologies in a Mouse Model for Neurodegenerative Diseases

Harland, Micah Thomas 01 June 2020 (has links)
No description available.
45

Serum amyloid alpha 1-2 are not required for liver inflammation in the 4T1 murine breast cancer model / 4T1乳がんに起因して起こる宿主肝臓の炎症には血清アミロイドαは不要である

He, Chenfeng 23 May 2023 (has links)
京都大学 / 新制・課程博士 / 博士(医学) / 甲第24800号 / 医博第4992号 / 新制||医||1067(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 伊藤 貴浩, 教授 波多野 悦朗, 教授 妹尾 浩 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM
46

Associations of Blood and Performance Parameters with Signs of Periodontal Inflammation in Young Elite Athletes: An Explorative Study

Merle, Cordula Leonie, Richter, Lisa, Challakh, Nadia, Haak, Rainer, Schmalz, Gerhard, Needleman, Ian, Rüdrich, Peter, Wolfarth, Bernd, Ziebolz, Dirk, Wüstenfeld, Jan 24 January 2024 (has links)
This retrospective cross-sectional study aimed to explore interactions between signs of periodontal inflammation and systemic parameters in athletes. Members of German squads with available data on sports medical and oral examination were included. Groups were divided by gingival inflammation (median of papillary bleeding index, PBI median) and signs of periodontitis (Periodontal Screening Index, PSI 3). Age, gender, anthropometry, blood parameters, echocardiography, sports performance on ergometer, and maximal aerobic capacity (VO2max) were evaluated. Eighty-five athletes (f = 51%, 20.6 3.5 years) were included (PBI < 0.42: 45%; PSI 3: 38%). Most associations were not statistically significant. Significant group differences were found for body fat percentage and body mass index. All blood parameters were in reference ranges. Minor differences in hematocrit, hemoglobin, basophils, erythrocyte sedimentation rates, urea, and HDL cholesterol were found for PBI, in uric acid for PSI. Echocardiographic parameters (n = 40) did not show any associations. Athletes with PSI 3 had lower VO2max values (55.9 6.7 mL/min/kg vs. 59.3 7.0 mL/min/kg; p = 0.03). In exercise tests (n = 30), athletes with PBI < 0.42 achieved higher relative maximal load on the cycling ergometer (5.0 0.5 W/kg vs. 4.4 0.3 W/kg; p = 0.03). Despite the limitations of this study, potential associations between signs of periodontal inflammation and body composition, blood parameters, and performance were identified. Further studies on the systemic impact of oral inflammation in athletes, especially regarding performance, are necessary.
47

Méthode acoustique basée sur l'agrégation érythrocytaire pour le suivi non invasif de l’inflammation

García-Duitama, Julián 12 1900 (has links)
No description available.
48

O papel do treinamento físico resistido durante o periodo de hospitalização na melhora clínica, funcional e da qualidade de vida em pacientes com doença pulmonar obstrutiva crônica / The role of resistive physical training during the hospitalization in clinical, functional and quality of life improvement in patients with chronic obstructive pulmonary disease

Borges, Rodrigo Cerqueira 30 January 2012 (has links)
INTRODUÇÃO: As exacerbações da doença pulmonar obstrutiva crônica (DPOC) afetam profundamente a força muscular periférica e a capacidade funcional destes pacientes, entretanto, intervenções para prevenir estas perdas funcionais e sistêmicas são pobremente compreendidas. OBJETIVOS: Avaliar os efeitos do treinamento resistido sobre a força muscular periférica, capacidade funcional e a qualidade de vida em pacientes com DPOC durante a hospitalização. Além disso, avaliar a resposta desta intervenção sobre a inflamação sistêmica e a atividade física de vida diária. MÉTODOS: Vinte e nove pacientes hospitalizados na enfermaria de um Hospital Universitário por exacerbação da DPOC foram randomizados em dois grupos: controle (GC) e treinamento (GT). Eles foram avaliados no 2° dia de internação, na alta hospitalar e após 30 dias. Nestas avaliações foram verificadas a força muscular periférica dos membros inferiores e superiores, a distância percorrida no teste de caminha de 6 minutos (TC6min), a inflamação sistêmica (TNF-, PCR, IL1, IL-12p70, IL-6, IL-8, IL10), a saúde relacionada a qualidade de vida e a atividade física de vida diária. RESULTADOS: Nossos resultados demonstram que durante a hospitalização todos os pacientes, independente do grupo, mantiveram-se a maior parte do tempo (87%) na posição deitada ou sentada. Os pacientes do GC demonstraram uma redução de força muscular dos membros inferiores (p<0,05), mas sem alteração na distância percorrida em 6 minutos (p>0,05) durante a hospitalização. Os pacientes do GT demonstraram uma melhora na força muscular dos membros inferiores e do TC6min (p<0,05) que permaneceram até 30 dias após a alta hospitalar. Diferentemente do GC, os pacientes do GT apresentaram uma melhora do domínio impacto no questionário de qualidade de vida após a alta hospitalar. Não houve diferença entre os grupos nos marcadores inflamatórios sistêmicos analisados durante a hospitalização e após 30 dias. Além disso, diversos pacientes de ambos os grupos permaneciam fisicamente inativos (70%) em casa. CONCLUSÃO: Nossos resultados sugerem que o treinamento resistido durante a hospitalização melhora a força muscular periférica e capacidade funcional. Entretanto, sem alterar a inflamação sistêmica e a atividade física de vida diária / BACKGROUND: Exacerbations of chronic obstructive pulmonary disease (COPD) profoundly affects the peripheral muscle strength and functional capacity of patients, however, interventions to prevent these losses and systemic function are poorly understood. OBJECTIVE: Evaluate the effects of resistance training on peripheral muscle strength, functional capacity and quality of life in COPD patients during hospitalization. In addition, evaluate the response of this intervention on systemic inflammation and physical activity of daily living. METHODS: Twenty-nine patients hospitalized in the ward of a university hospital for exacerbation of COPD were randomized into two groups: control (CG) and training (GT). They were evaluated at day 2 after admission, hospital discharge and after 30 days. These assessments were verified to peripheral muscle strength of upper and lower limbs, the distance walked in 6 minutes, systemic inflammation (TNF-, CRP, IL1, IL-12p70, IL-6, IL-8 and IL10), health-related quality of life and physical activity of daily living. RESULTS: Our results show that during hospitalization all patients, regardless of group, remained most of the time (87%) in the lying or sitting position. The CG patients showed a reduction in muscle strength of lower limbs (p <0.05) but no change in distance walked in 6 minutes (p> 0.05) during hospitalization. TG patients demonstrated improvement in muscle strength of lower limbs and distance walked in 6 minutes (p <0.05) that remained until 30 days after hospital discharge. Differently from GC, the GT patients showed an improvement in the domain impact on health-related quality of life after discharge. There was no difference between groups in systemic inflammatory markers analyzed during hospitalization and after 30 days. In addition, several patients in both groups remained physically inactive (70%) at home. CONCLUSION: Our results suggest that resistance training during hospitalization improves peripheral muscle strength and functional capacity. However, without altering systemic inflammation and physical activity of daily living
49

Die Rolle der Interleukin-10 Gabe auf die posttraumatische systemische Inflammation und Organdysfunktion am Mausmodell

Schreiber, Helen 18 June 2012 (has links) (PDF)
Bei IL-10 handelt es sich um ein antiinflammatorisches Zytokin, dessen immunmodulatorische Effekte bereits in zahlreichen Studien aufgezeigt werden konnten. Ziel dieser Studie war, die Unterschiede in der systemischen Inflammation und Organdysfunktion an Mäusen zu untersuchen, die nach Induktion eines hämorrhagischen Schocks, entweder inhalativ oder systemisch, mit IL-10 behandelt wurden. Männliche C57/BL6 Mäuse (6 Tiere pro Gruppe) wurden für 1.5 Stunden blutdruckkontrolliert in einen hämorrhagischen Schock versetzt. Nach anschließender Volumensubstitution wurde ihnen inhalativ oder intraarteriell rekombiniertes Maus - IL-10 verabreicht. Nach einer Gesamtversuchsdauer von 6 - bzw. 24 Stunden erfolgte die Tötung der Tiere. Die Ergebnisse der Studie zeigen, dass die lokale und systemische Verabreichung von IL-10 das Zytokinprofil der systemischen Inflammationsantwort unterschiedlich beeinflusst. Die Lunge kann durch inhalative Gabe von IL-10 geschützt werden, ohne die systemische Inflammationsantwort zu beeinflussen.
50

IgE sensitization against food allergens : Natural history, relation to airway inflammation and asthma

Patelis, Antonios January 2015 (has links)
Background: According to recent studies in children, IgE sensitization not only against perennial allergens, but also against food allergens, is related to asthma risk and increased airway inflammation. During the last decade, a new technique for IgE determination based on allergen components has become available, but its use in epidemiological studies has been limited. Aims: To investigate the relationship between the pattern of IgE sensitization to allergen components and the prevalence of asthma, airway inflammation and hyperresponsiveness in a population-based setting. To examine the relationship of IgE sensitization to allergen extract, and airway inflammation, airway hyperresponsiveness and blood eosinophilia in asthmatics. To examine the natural history of IgE sensitization to food allergens in adults. To compare extract-based and component-based IgE measurements in relation with new-onset respiratory disease and airway inflammation and hyperresponsiveness. Methods: The present thesis is based on cross-sectional and longitudinal analyses of the adult, the population-based study ECRHS (European Community Health Survey) and a cross-sectional, observational study of young subjects with asthma. IgE sensitization was examined by means of both extract-based and component-based tests. Airway inflammation was assessed by exhaled NO and airway hyperresponsiveness with methacholine test. Results: IgE sensitization to food allergens independently related to increased airway inflammation in both a population-based study and a study of asthmatics. Furthermore, a relation was found with increased blood eosinophils in asthmatics. The decrease in prevalence of IgE sensitization against food allergens during a 9-year follow-up was larger than the decrease of aeroallergens. Subjects with IgE sensitization to both cat extract and components showed more frequent airway inflammation, greater bronchial responsiveness and higher likelihood of developing asthma and rhinitis than subjects with IgE sensitization only to cat extract. Conclusions: The presence of IgE antibodies against food allergens was independently associated with airway and systemic inflammation. Both aeroallergens and food allergens should be examined in order to understand the signaling of local and systemic inflammation in asthma. Prevalence of IgE sensitization to food decreased in adults to a larger extent than IgE sensitization against aeroallergens. Measurement of IgE sensitization to cat allergen components appears to have a higher clinical value than extract-based measurement

Page generated in 0.4983 seconds