Browsing by Author "Tavares, B"
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- Airways hyperresponsiveness to different inhaled combination therapies in adolescent asthmaticsPublication . Machado, D; Pereira, C; Tavares, B; Loureiro, G; Segorbe-Luís, A
- Alergia a veneno de himenópteros: novos métodos de diagnósticoPublication . Tavares, BDuring the past years, the number of patients with both anaphylaxis to hymenoptera sting and negative IgE detected by conventional methods has been increasing. To obviate this problem new assays have been tried, such as Western blot and in vitro challenge tests involving basophil activation, with either the measurement of histamine and sulphidoleukotrien released (CAST--Cellular Antigen Stimulation Test) or the detection of activation markers on the cell surface with flow cytometric analysis (Flow CAST). In this paper the principles of these assays as well as their diagnostic value in hymenoptera allergy are briefly reviewed.
- Alergia alimentar a rosáceas e frutos secos: a propósito de um caso clínicoPublication . Carrapatoso, I; Tavares, B; Pereira, C; Rodrigues, F; Barbosa, A; Chieira, C
- Body mass index and airway hyper-responsiveness in individuals without respiratory diseasePublication . Machado, D; Tavares, B; Loureiro, G; Conde, B; Cemlyn-Jones, J; Calado, G; Sousa, N; Chieira, C; Pereira, CBACKGROUND: Overweight and obesity are major health issues in Western societies. They are related with a higher risk of different co-morbidities but their relationship with airway hyperresponsiveness (AHR) is still under discussion. Nevertheless, they are related to higher severity in asthma and other respiratory diseases. The aim of the study was to analyze the AHR in individuals with normal lung function without respiratory disorders, according to body mass index (BMI) calculation. METHODS: We performed clinical observation and basal lung function tests (LFT) in 595 consecutive individuals in order to exclude respiratory disease. 377 individuals fulfilled the criteria of normal values according international guidelines. They were submitted to standardized treadmill exercise test followed by bronchodilator test. FVC, FEV1, FEF 25/75, RV and Raw were obtained at different conditions according to BMI groups (I: lean; II: normal; III: overweight; IV obese). RESULTS: 55.2% of the sample was overweight or obese, and a signficant relationship was found with female gender and older ages (p=0.0046 and p<0.0001 respectively). The positive response to exercise test or bronchodilator beta2 agonists was not significantly frequent compared with the other groups. In obese individuals the exercise markedly reduced basal Raw and increased FEF 25/75. Lean individuals showed higher basal values of RV that was reduced upon exercise. Response to 12 agonists showed no differences according to weight biotypes. CONCLUSION: BMI hampers lung function in normal individuals, and seems not to be related to AHR. Regular exercise should be encouraged in overweight and obese individuals, since it increases their bronchial permeability as shown in lower frequency of positive exercise tests. The same is advisable for lean individuals for different reasons. Their increased basal RV and Raw improve upon exercise. Despite overweight and obesity are being related to a low-grade of basal systemic inflammation, there was no association with a higher basal bronchial hyperresponsiveness in these individuals.
- CD4 CD86 expression on experimental allergic murine modelPublication . Pereira, C; Paiva, A; Machado, D; Henriques, A; Abrantes, M; Laranjo, M; Tavares, B; Loureiro, G; Chieira, C; Botelho, F; Baganha, MF
- Characterisation of disease and exacerbations in patients hospitalized with asthma attacks without previous attendance of a specialized departmentPublication . Calado, G; Loureiro, G; Tavares, B; Pereira, C; Ribeiro, C; Machado, D; Chieira, C
- Chronic rhinosinusitis with nasal polyps in allergic patientsPublication . Sousa, N; Santos, A; Loureiro, G; Tavares, B; Loureiro, C; Faria, E; Chieira, C
- Clinical respiratory allergy patterns in pairs of siblingsPublication . Calado, G; Loureiro, G; Tavares, B; Pereira, C; Ribeiro, C; Machado, D; Chieira, C
- Dermatite herpetiforme como manifestação inicial de doenças celíaca durante a gravidez: caso clínicoPublication . Calado, G; Loureiro, G; Ribeiro, C; Machado, D; Tavares, B; Chieira, CA doença celíaca (DC) é uma enteropatia induzida pela gliadina dos cereais. A prevalência tem vindo a aumentar, designadamente os casos atípicos e em idade adulta, comparativamente à apresentação clássica da infância, com manifestações gastrintestinais e decorrentes da malabsorção. Apresentamos um caso clínico de DC que se manifestou em idade adulta e cuja forma de apresentação foi a dermatite herpetiforme, durante a gravidez. Após um correcto enquadramento clínico e instituição de dieta sem glúten, verificou-se estabilização clínica. No entanto, a doente apresenta esterilidade secundária. Discute -se a interacção entre a DC e a gravidez, já que não só a DC pode ter repercussões na gravidez, como o inverso também se verifica.
- Egg allergy and Hodgkin´s lymphoma: case reportPublication . Calado, G; Loureiro, G; Machado, D; Ribeiro, C; Tavares, B; Pereira, C; Chieira, C
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