Active clinical trials for "Hypersensitivity"

The incidence of allergic diseases has increased and a relation between allergy and dietary fatty acids has been proposed. Modulation of the maternal immune function during pregnancy may have an impact on future clinical outcomes in the child. The aim of this study was to determine the effects of omega (ω) - 3 long-chain polyunsaturated fatty acid (LCPUFA) supplementation during pregnancy and lactation on the development of allergic disease (i.e., allergic eczema) in the child at 2 years of age. Pregnant women with allergic disease in their immediate family were supplemented daily with 2.7 g ω-3 LCPUFA (n=70) or 2.8 g soybean-oil as placebo (n=75) from gestational week (gw) 25 until the third month of breastfeeding. Skin prick tests, detection of circulating specific IgE antibodies and clinical examinations of the infants were performed at 3, 6, 12 and 24 months of age. The mothers and children were monitored regarding immune modulatory effects during the entire study period.

The purpose of this study is to observe the natural course of food allergy, including both the development of peanut allergy in infants at high risk for developing this allergy, and the resolution of both egg and cow's milk allergy.

We propose to conduct a scientifically valid, descriptive survey to measure the prevalence and levels of lead in dust, soil, and paint, and the prevalence and levels of various indoor allergens in floor and bedding dust in the nation's housing stock. The survey strategy is a population-based, multi-stage area probability sample designed to represent all 50 states. The survey will include approximately 1000 homes in at least 100 primary sampling units (PSU, a metropolitan area or cluster of counties). Residents of candidate participant housing units (HUs) will initially be contacted by a letter to introduce and provide a brief explanation of the study. A field interviewer will then visit each candidate HU to screen and recruit eligible units into the study. A short Screening Questionnaire will be administered to an adult HU resident and an invitation will be extended to those HUs that are eligible to participate in the study. A field data collection visit will be scheduled for the following week, at the resident's convenience. The collection visit will be conducted by two member team (including the same field interviewer that will conduct the screening/recruiting visit) and will consist of administration of an informed consent form and Data Collection Questionnaire, completion of home observation forms, collection of interior dust and exterior soil samples, and conduct of nondestructive paint lead analysis on both interior and exterior walls. Soil and dust samples will be shipped to analytical laboratories for lead and allergen analysis. Extensive survey design, procedure, and reporting details are provided in the National Survey Lead Hazards and Allergens in Housing: Protocol and Sample Design Report (Attachment A). It is anticipated that this study will provide allergen-specific data regarding: 1) housing conditions, demographic factors, and climate to facilitate evaluation of regional, ethnic, socioeconomic, and housing characteristic differences in the indoor allergen burden; 2) an estimate of indoor allergen exposure in the U.S. population; 3) baseline data that can be used to stimulate future studies which attempt to correlate allergen exposure to disease outcome. The study will yield lead hazard data to: 1) estimate the number and percent of homes with dust and soil lead levels above selected thresholds; 2) identify sources of lead in dust in housing; 3) permit future analysis of lead hazard control strategies an costs, including associated policy and regulatory guidelines.

The aim of the study was to describe an intensive ultra rush (UR) protocol of raw Golden apple (RGA) reintroduction in 28 in-patients, show the protocol's tolerance and the patients' follow-up at 2 months and 1 year. Patients with oral allergic syndrome (OAS) having resulted in raw fruits eviction were admitted to day hospital between June 1 2016 and October 31 2017.

Aluminium is used in many different cosmetic products, including make-up, deodorants and sunscreen. The purpose of this study is to investigate whether these everyday skin products with small amounts of aluminium can cause skin reactions in children diagnosed with contact allergy to aluminium. The study is conducted as a Repeated Open Application Test study (ROAT), a method originally developed to clarify the clinical relevance of questionable and positive patch samples, by imitating everyday use of a skin product.

Brief Summary: This study aims to investigate whether protein fortification of beverages causes mouthdrying and mucoadhesion and whether this is influenced by saliva flow.

Ultravist is an iodine-based contrast agent that helps to make medical imaging scans clearer. It is also called iopromide, and it is available for doctors to give patients before they have scans. Even after a treatment or substance has been approved for use, researchers continue to study it to learn more about its safety. Researchers have done studies on the safety of Ultravist, but they want to learn more about specific medical problems called hypersensitivity reactions (HSRs). These are undesirable immune system reactions to the study drug. In this study, the researchers will compare the risk of HSRs in children and in the elderly to the risk of HSRs in middle aged adults. The researchers will look at information about medical problems that happened in people in 4 other studies. These studies are called PMS I, IMAGE, TRUST, and Ultravist in CT. A total of about 139,000 people will be included in this study. All of the people in the earlier 4 studies received Ultravist as an injection into the vein or artery before having a scan. In this study, the researchers will compare the number of children, middle aged adults, and elderly patients who had HSRs after receiving Ultravist.

This project aims to verify the hypothesis that spelt products are more tolerable than bread wheat products in a target group of individuals with self-diagnosed wheat sensitivity. In addition, the influence of different manufacturing processes will be considered.

The aim of this 11 study analysis was to compare the effect of bioavailable stannous fluoride (SnF2) on dentine hypersensitivity versus a positive or negative control dentifrice.

This is a single-centre phase I study to assess the Drug-Drug Interaction potential of MLC1501 with a cocktail of drugs acting as sensitive clinical probe substrates of Cytochrome P450 isoenzymes and Transporters in healthy subjects . The study will have 2 cohorts, one for the CYP study and the other for the Transporters study. Eligible subjects (n=24) will be assigned to one of the 2 cohorts in a 1:1 ratio.