Active clinical trials for "Hypersensitivity"

Rapid and reliable exclusion of acute myocardial infarction (AMI) during an emergency department (ED) triage is a major unmet clinical need. We aimed at verifying the non-inferiority of a single-sampling strategy of hs-cTn and copeptin compared with the dual hs-cTn sampling for the early diagnosis of Non-ST-Elevation Acute Coronary Syndromes (NSTE-ACS) versus Non Coronary Chest Pain (NCCP) in a selected cohort of consecutive patients admitted at the Emergency Department.

Stroke is one of main causes of death and impairment worldwide. Objective of this study is to analyze serum High Sensitivity C-Reactive Protein in acute phase stroke in patients attended at Petróleos Mexicanos Hospital Central Sur de Alta Especialidad and to correlate with stroke extension and clinical features.

The purpose of the study is to add to the knowledge of mechanisms of immune health. Parameters of the immune system will be followed over time in volunteers allergic to dust mites and bee sting after receiving immunization therapy. This information will be compared to healthy volunteers without allergy. We aim to bring new understanding of immune processes by this comparison.

The purpose of this study is to develop a tool to better predict clinical allergy to peanut, so that those who are skin test positive but non allergic will not have to unnecessarily avoid peanut, and those with true allergy can be diagnosed, possibly without oral ingestion challenge, and treated appropriately

The aim of this study is (1) to assess the incidence of suspected drug allergies in a pediatric hospital and the proportion in which these reactions are confirmed to be allergic; (2) to evaluate the diagnostic values of the different allergy tests available; (3) to investigate the pathophysiology of drug allergies, particularly by investigating the role of viruses, and by performing HLA typing and a gene expression profile both in the acute phase of the reaction and 2 months later.

This clinical study aims to evaluate the feasibility to predict clinical response of target therapy or chemotherapy drugs based on the ex vivo drug sensitivity data using patient-derived organoids.

Atopic dermatitis (AD) is a chronic allergic skin disease with onset in early childhood and increasing prevalence in Westernized countries. Current well newborn guidelines for washing babies with soap were adopted by U.S. hospitals in the 1970s, before the rise in prevalence of allergic disease and AD (also called eczema). Increased transepidermal water-loss (TEWL) in newborn skin at 2 days of life was recently identified as a predictor of AD and allergy development by age 2 years. Risk for AD in babies was also linked to decreased skin colonization with certain skin microflora, such as staphylococcal organisms. Together, these data raise the question of whether newborn skincare guidelines have the potential to modify a baby's risk for allergy development. Our current practice of washing babies with soap may alter TEWL or other natural factors in skin that protect babies from development of AD and allergy. More knowledge is needed about the impact of infant skincare practices on allergy development. The objective of this pilot study is to determine the impact of a baby's first bath on his/her transepidermal water loss (TEWL) and skin microflora. Study procedures will include collection of TEWL measurements and skin swabs for skin microflora analysis pre/post first bath in healthy term newborns at UVA. This data will serve as preliminary data for future studies.

Birth cohort study with recruitment during pregnancy to determine prenatal and perinatal conditions, as well as genetic and epigenetic factors, that participate in the early setting of immune responses, and the role of these in the later determination of the risk of allergic diseases, asthma, and metabolic conditions in the offspring.

A high number of birch pollen-allergic individuals develop hypersensitivity reactions to certain foods, e.g. apples. This food allergy is due to immunological cross-reactivity. Birch pollen-related foods contain proteins, e.g. Mal d 1 in apple, that are structurally related with the major birch pollen allergen, Bet v 1. Hence IgE antibodies and T lymphocytes specific for Bet v 1 recognize these food proteins which results in activation of the immune system and, consequently, in clinical symptoms. In the present study the investigators intend to investigate if and how the consumption of birch pollen-related food allergens affects birch pollen allergy. In other words, the investigators are interested to analyse whether Bet v 1-related food allergens activate Bet v 1-specific memory cells and thus, contribute to the maintenance of the pollen allergy outside the pollen season. Data obtained in this study will help to clarify the immunological and clinical role of cross-reactivity between pollen and food allergies and will reveal whether avoidance of such foods should be recommended for the patients. Finally, novel approaches for diagnosis and therapy of pollen-related food allergens can be developed.

Diabetic retinopathy (DR) is the leading cause of impaired visual function and blindness in adults. The fundus photographs were examined to detect DR. The DR severity was graded non-proliferative diabetic retinopathy (NPDR) and proliferative diabetic retinopathy (PDR) according to the International Clinical Diabetic Retinopathy and Diabetic Macular Edema Disease Severity Scales. The pathogenesis of DR is complex and not fully understood, and platelet aggregation, microvascular damage, microvascular enlargement, leakage, hemorrhage, or obstruction, resulting in retinal hypoxia and retinal neovascularization. Traditional Chinese medicine (TCM) diagnostic tools are non-invasive and convenient. This study apply TCM diagnostic tools for clinical diseases, providing objective diagnostic data for evaluation to assess the association of blood stasis and DR. Furtherly we would evaluate the sensitivity and specificity of TCM diagnostic tools. This study is a prospective cross-sectional study. We enroll participants form the department of Chinese medicine, China Medical University Hospital. In total, 100 participants , composed of 50 of type 2 diabetes and 50 of diabetic retinopathy, whom previously had a retinal examination. We apply tongue diagnosis system, pulse wave analysis, body constitution questionnaires, and nailfold capillaroscopy to assess the differences of TCM diagnosis in DR. This study aims to identify the clinical symptoms of DR with TCM diagnostic tools and investigate the pattern difference and treatment for DR. Furtherly, we could design a clinical trial with improving blood circulation to treat or prevent DR, and improve the health status and quality of life in patients with type 2 diabetes.