View clinical trials related to Hypersensitivity.
Filter by:Sensitive skin is a common problem, with 50% of women and 30% of men in Europe feel they have sensitive skin. The Quantitative sensory testing (QST) is a physico-psychic method that uses gradients stimuli of different modalities to measure a subjective somatosensory response. This allows to characterize sensory dysfunction by assessing the participation of small and large nerve fibers. The aim of this project is to characterize the presence or absence of a neurological disorder in patients with sensitive skin. This discovery would be a decisive argument to reinforce the suspicion that sensitive skins is linked to a small fiber neuropathy.
The proposed study intends to compare the outcome of food challenge in hazelnut allergic patients with the outcome of basophile activation tests using hazelnut extract and components.
The aim of this study is through a double blind randomized clinical trial, evaluate the effectiveness of different clinical protocols in the reduction of dentin hypersensitivity. The desensitization approach (single agent or associated agents) and the long-term effectiveness (baseline, 1 week, 2 weeks, 4 weeks, 12 weeks and 24 weeks) will be evaluated. Data will be collected, tabulated and submitted to statistical analysis.
Background: ß-lactam (BL) antibiotics represent the main cause of allergic reactions to drugs, inducing both immediate and non-immediate reactions. The diagnosis is well established, usually based upon skin tests and drug provocation tests, but cumbersome. Objectives: To design predictive models for the diagnosis of BL allergy, based on the clinical history of patients with suspicions of allergic reactions to BL. Methods: The study included a retrospective phase in which records of patients consulting and explored for a suspicion of BL allergy (in the Allergy Unit of the University Hospital of Montpellier between September 1996 and September 2012) where used to construct predictive models; a prospective phase, in which we performed an external validation of the chosen models, in patients with suspicion of BL allergy recruited from 3 allergy centres (Montpellier, Nîmes, Narbonne), between March and November 2013. Data related to clinical history and allergy work-up results were retrieved and analysed. Logistic regression and decision tree method were used to design two models to predict the diagnosis of allergy to BL.
A randomised, examiner blind, two treatment arm, stratified, parallel design, single-site study in subjects with at least two sensitive teeth to compare the efficacy of a test dentifrice against that of a control dentifrice in reducing dentinal hypersensitivity.
This study evaluates blood type 2 innate lymphoid cells in participants with mild to moderate asthma and participants with chronic urticaria as compared to healthy adult participants.
Dentinal hypersensitivity [DH] is a common condition in daily practice, especially in patients who have abrasion, attrition, gingival recession and erosion of teeth. It can affect individuals in the age range of 20-50 years.In a recent systematic review, it was reported that no gold standard treatment modality for dentin hypersensitivity has been established Thus there is a need to evaluate new formulations in different settings and in different populations and to compare those to commonly used agents seeking better results in pain relief for our patients. Studies showed that dentifrice formulations containing 8% arginine in combination with calcium carbonate and fluoride have the ability to plug dentinal tubules, by clumping of both arginine and calcium carbonate that bind with the negatively charged dentin . Aim of the study is to clinically evaluate toothpaste containing 8% arginine, calcium carbonate, and sodium mono-fluorophosphate, in comparison to toothpaste, containing 8% strontium acetate and NaF on the relief of DH in chronic periodontitis patients.
With the rising prevalence of allergic diseases and the subsequent risk of developing other immune-related disorders, primary prevention of allergy has become a major priority. It is generally acknowledged that breastfeeding is one of the main pillars in allergy prevention. Infant formulas based on hydrolysed proteins have been developed to be used by infants at increased risk of developing allergy in case a mother is unable or chooses not to breastfeed her infant. It has recently been demonstrated that the gut microbiota composition and microbiota activity of infants receiving an infant formula based on partially hydrolysed proteins, supplemented with oligosaccharides, is more similar to breastfed infants than to infants receiving standard cow's milk formula, demonstrated by increased levels of bifidobacteria. However the interaction between microbial changes impacted by an hypoallergenic concept and its influence on early life immune development should be further explored. The aim of the present study is therefore to investigate the bifidogenic effect of a hypoallergenic formula supplemented with prebiotics and probiotics compared to standard infant formula in infants at increased risk of developing allergic disease. This study will secondary assess the effects of this concept on the development of allergic manifestations up to the age of 12 months, which will be verified in a separate clinical study MAESTRO as primary outcome. Furthermore, the effects on growth and safety will be studied.
Purpose: This study will determine the effectiveness of the use of desensitivity gels prior in office bleaching on risk and intensity of tooth sensitivity caused by in-office bleaching using 35% hydrogen peroxide. Materials and Methods: Fifty patients will be selected for this triple-blind, randomized, cross-over, placebo-controlled clinical trial. 10 minutes prior to bleaching procedure, patients will receive the potassium oxalate 5% desensitivity gel and placebo application on vestibular surface. The whitening treatment with 35% hydrogen peroxide will be carried out in two sessions with a 7-day interval. Tooth sensitivity will be assessed before, during and 24 hours after the procedure using analog visual and verbal scales. Color alteration will be assessed by a Classical guide scale. Relative risk to sensitivity will be calculated and adjusted by session; while comparison of overall risk will performed by McNemar's test. Data on the sensitivity level for both scales and color shade will be subjected to the Friedman, Wilcoxon and Mann-Whitney tests, respectively (α = 0.05)
With the rising prevalence of allergic diseases and the subsequent risk of developing other immune-related disorders, primary prevention of allergy has become a major priority. It is generally acknowledged that breastfeeding is one of the main pillars in allergy prevention. Infant formulas based on hydrolysed proteins have been developed to be used by infants at increased risk of developing allergy in case a mother is unable or chooses not to breastfeed her infant. The effect of hydrolysed formula in allergy prevention has been examined in many studies, from which it can be concluded that currently there is not sufficient evidence to support hydrolysed protein over intact protein for allergy risk reduction. Moreover, several clinical trials support the suggestion of supplementation of pre and/or probiotics for the reduction of eczema development, recognized by international authorities. The present study (MAESTRO) investigates the preventive effect of a hypoallergenic concept combining several nutritional approaches related to preventive strategies: partially hydrolysed protein formula supplemented with prebiotics and probiotics. The aim of the present study is to investigate the efficacy, growth and safety of this concept compared to standard (intact protein) infant formula on the development of allergic manifestations up to the age of 12 months in infants at increased risk of developing allergy.