Active clinical trials for "Hypersensitivity"

This is an observational to evaluate Total Rhinoconjunctivitis Symptom Score and rescue medication usage (as measured by Rescue Medication Score as a Combined Score to inform the design of a phase III field study with ToleroMune Ragweed.

The perception of fat represents major scientific and nutritional issues. This research aims to identify salivary markers that could predict and possibly explain this perception in healthy human being. This would help to develop nutritional strategies for a more rational consumption of fat.

Celiac disease (CD) is an immune-based reaction to dietary gluten (storage protein for wheat, barley, and rye) that primarily affects the small intestine in genetically predisposed patients and resolves with exclusion of gluten from the diet. Patients with CD show circulating autoantibodies (anti-transglutaminase, anti-tTG) and suffer from the destruction of a specific tissue cell type (the enterocytes) by CD8+ T cells. Furthermore, other autoimmune diseases have been reported in association to CD in 20-30% of the cases. In the last few year, a new clinical entity emerged, which seems include patients who consider themselves to be suffering from problems caused by wheat and/or gluten ingestion, even though they do not have CD or wheat allergy. This clinical condition has been named "Non-Celiac Gluten Sensitivity" (6), but, in a recent paper, the investigators suggested the term "Non-Celiac Wheat Sensitivity" (NCWS), since, to date, it is not known what component of wheat really causes the symptoms. The doubt areas about the NCWS regard also its pathogenesis as, despite some papers evidenced an intestinal immunologic activation, others excluded it. To explore the presence of autoimmunity in NCWS, the investigators evaluated: a) the frequency of autoimmune diseases and b) the frequency of serum anti-nuclear antibodies (ANA) positivity in newly diagnosed NCWS, compared to CD patients.

Objective: This study was conducted to explore the possible correlation between some gene related to pain sensation and individual basal pain perception and postoperative pain intensity in the general population. Methods: Patients receiving elective surgery under general anesthesia were recruited into this study. The investigators measured their preoperative pressure pain threshold (PPT) and pressure pain tolerance (PTO). Pain intensity at rest and movement after the operation was evaluated . And the PCA drug consumption were recorded. Also there were healthy college students volunteer be recruited into this study. The investigators measured their experimental pain sensitivity including pressure pain threshold (PPT) and pressure pain tolerance (PTO), etc. Then genotyping was carried out.

This study will see if bacteria differ between children who have allergies or asthma and children who do not have allergies or asthma. Previous research suggests that some bacteria may protect against allergies and asthma. This study may provide more information on why some children develop allergies and asthma. Patients at the University of North Carolina-Chapel Hill School of Dentistry who are between 6 and 11 years of age may be eligible for this study. Parents of participating children complete a questionnaire about the child and the child's health. The child provides a saliva sample by chewing a small piece of wax and spitting in a cup. The saliva sample is analyzed in the laboratory for bacteria, yeast and antibodies (substances the body produces to fight germs). ...

The purpose of this study is to test a new mouse skin test extract on people who work with mice in a lab or through animal care. It has a higher level of the major allergen and therefore may be better at diagnosing mouse allergies in this population.

The purpose of the study is to assess the relationship between vitamin D status and insulin- glucose dynamics in obese Adolescents. The study is intended to assess the difference in the insulin sensitivity before and after correction of vitamin D deficiency.

The overall objectives of this study are to examine the relationships between circulating vitamin D, insulin sensitivity, and multiple indices of vascular function and to examine whether vitamin D deficiency in AA is responsible for ethnic differences in insulin sensitivity and hypertension in AA and EA, as well as mechanisms underlying the association between insulin resistance and blood pressure. We hypothesize that 1) serum 25(OH)D is associated with insulin sensitivity and vascular functioning, independent of adiposity, 2) lower insulin sensitivity and vascular functioning in AA relative to EA is due to lower circulating 25(OH)D in AA, and 3) the relationship between insulin resistance and vascular dysfunction is mediated by 25(OH)D. Acronyms: African American (AA), European American (EA), Serum 25-hydroxy vitamin D (25()H)D, Body mass index (BMI), Alabama (AL).

Long-term cognitive outcome study of children who participated in randomized trials of LCP-supplemented formula during infancy.

The goal of this Method Comparison Study is to compare total IgE results obtained from at least 360 subjects aged less than 80 years old using four different testing arms comprising three types of samples and two testing methods. The main questions it aims to answer are: Are the Kenota 1 Devices easy to use by untrained operators at a clinic environment? Do tIgE results provided by the Kenota 1 Devices match the results provided by the FDA-cleared Phadia ImmunoCAP System? Subjects will be asked to donate two fingerstick whole blood samples and one venous blood draw.