Active clinical trials for "Hypersensitivity"

Hypersensitivity pneumonitis (HP) is a complex immune mediated disorders caused by repeated inhalation of and sensitization to wide range of antigens including organic particles and chemical compounds, leading to exaggerated immuneresponse. Hypersenstivity pneumonitis is a common form of diffuse parenchymal lung diseases in Egypt .Pulmonary hypertension has been found as a complication of a number of diseases affecting the lung interstitium, including hypersensitivity pneumonitis, with subsequent affection of the life expectancy Rationale of the study: to find predictors for the development of pulmonary hypertension in patients with hypersensitivity pneumonitis

This is an open-label, follow-up study for subjects who completed the PEPITES study. Subjects will be offered enrollment in this follow-up study to receive Viaskin Peanut 250 μg for 2 additional years if previously on active treatment in the PEPITES study, or for 3 years if previously on placebo in the PEPITES study.

Patients with type-1 diabetes are more susceptible to motility-related upper gastrointestinal symptoms. Dietary interventions are one of the treatment pillars for these symptoms. Many gastrointestinal conditions other than celiac disease, are being increasingly treated with gluten-free diet (GFD). The role of GFD in non-celiac type-1 diabetic patients with dyspepsia-like symptoms has not been assessed before. In this study, type 1 diabetes patients with concomitant upper gastrointestinal symptoms will be asked to follow a 1-month GFD to assess changes in upper gastrointestinal symptoms and gastroduodenal motility before and after the dietary intervention.

A recent study has shown that certain drug allergies were actually related to an immune system against certain viruses. The aim of the study is to evaluate, in patients taking antiepileptic drugs, if this treatment induces proliferation of these viruses and secondarily an immune response that would promote the development of a rash. In particular, will be studied whether these drugs can induce virus reactivation "dormant" in the immune system. This study will not affect the usual follow-up proposed by investigators, with the exception of some additional blood samples.

The aim of this research is to explore changes in peripheral/cerebrovascular function and insulin sensitivity after a 7-day combination of physical activity reduction (-50% steps per day) and overfeeding (+50% kcal per day, comprising 65% fat) in healthy male volunteers, and examine whether daily intake of tea can prevent such changes.

Impact of fermented milk in prevention of cow's milk allergy in new born and infants

The study is meant to observe the influence of nutrition on nasal and bronchial discomfort in patients with allergy on grass pollen after specific bronchial provocation. Therefore, the investigators will record the patients' nutrition habits and measure the blood level of long chained polyunsaturated fatty-acids.

25 patients, treated by brachytherapy in a phase II study "Mammosite" (from 2003 to 2005), will be asked to attend a clinical exam in order to evaluate the late cutaneous toxicity due to brachytherapy. During this consultation, a blood sample will be taken for analysis ( rate of CD8 T-Lymphocyte Apoptosis)

Sensitive skin syndrome is a frequent self-diagnosed entity that has not been previously described in a Latin-american population. One hypothesis to its development is an alteration of the barrier function of the skin. The aim of the study is to describe the frequency of sensitive skin in a mexican population detected through the lactic acid test, and to explore its response through biophysical measures (colorimetry, transepidermal water loss (TEWL) and capacitance). The prevalence of this syndrome in studied populations is approximately 50%. Considering racial skin differences, the investigators would expect at least a 20% prevalence. For this purpose, the investigators would need a minimum of 243 healthy volunteers, 18 years or older, with previous informed consent, to whom the lactic acid test will be performed. The investigators will record any unpleasant sensation graded in a Visual Analog Scale (VAS) of 10 points, colorimetry, TEWL and capacitance before the test and at 3, 5, 8 and 10 minutes after the lactic acid test.

BCG vaccination has been found to provide greater protection against TB in the UK than in Malawi. This study compares immune responses in BCG-vaccinated and unvaccinated teenagers and young adults in Malawi and in the UK.