View clinical trials related to Hypersensitivity.
Filter by: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.
Recently, it has been proposed that the consumption of non-nutritive sweeteners, including sucralose, it's not harmless and is related with metabolic effects. Some studies have reported that sucralose produces alterations in glucose homeostasis. In vitro studies indicate that sucralose is capable of interacting with sweet taste receptors (T1R2 and T1R3) in the intestine, thus increasing the expression of glucose transporters including the sodium-glucose cotransporter type 1 (SGLT1) and the glucose transporter 2 (GLUT2), increasing glucose absorption. This interaction with intestinal sweet taste receptors also generates an increase in the secretion of the incretins glucagon-like peptide type 1 (GLP-1) and the glucose-dependent insulinotropic polypeptide (GIP), which might enhance the postprandial insulin release. However, these results are preliminary and it's desirable to confirm if sucralose consumption is associated with glucose metabolism modifications using an appropriate methodological design and with gold standard methods. The aim of this triple-blind, placebo-controlled, parallel, randomized clinical trial is to confirm the changes in insulin sensitivity associated with sucralose consumption in humans, to identify whether these changes are in the liver or skeletal muscle and to investigate the pathophysiological mechanisms generating these changes. Specifically, we will investigate if sucralose generates a dysbiosis in the gut microbiota that could be related to insulin resistance by increasing concentrations of lipopolysaccharide, a toxin present in Gram-negative bacteria that triggers a low grade inflammation known as metabolic endotoxemia. In addition, the changes in postprandial concentrations of GLP-1, glucose, insulin and C-peptide due to the combination of sucralose with a mixed meal will be investigated. The results of this study will determine if sucralose consumption, frequently used as a non-nutritive sweetener, is associated to significant changes in glucose homeostasis in humans.
Subcutaneous Immunotherapy (allergy injections) is a potentially disease-modifying therapy that is effective for the treatment of allergic rhinitis/conjunctivitis, allergic asthma and stinging insect hypersensitivity. Pain, which results from the irritation of nearby nerves is a common concern of patients, particularly in children, during or after the injections. This can be a stressful and negative experience for the children. There are various techniques available to minimize pain in general. However, there is a lack of published research on how to use these techniques in children receiving allergy injections. The purpose of this study is to evaluate and compare the efficacy of the standard of care method (Ethyl Chloride/Pain Ease Spray) and three non-pharmacological pain control devices (Buzzy Bee® I, Buzzy Bee II and Shot Blocke®r) in decreasing the perception of pain during subcutaneous allergy injection in a pediatric allergy/immunology clinic setting.
This study intends to determine the effects of thoracic manipulation on pressure pain sensitivity in patients with rhomboid active trigger points.
The study investigates the regulation of muscle glucose utilization during exercise and enhanced insulin sensitivity in recovery from exercise. This will be investigated in lean control subjects and obese insulin resistant subjects.
Self-reported food hypersensitivity is common, particularly in women, with a reported prevalence of about 20% in the UK community. A wide range of gastrointestinal and systemic symptoms may be experienced related to consumption of the intolerant food(s). In addition, patients demonstrate considerably more generalized subjective health complaints in comparison with healthy controls. In this context, it has been reported that a consistent percentage of the general population consider themselves to be suffering from problems caused by wheat and/or gluten ingestion, even though they do not have celiac disease or wheat allergy. This clinical condition has been named non-celiac gluten sensitivity' (NCGS). In a previous paper the investigators suggested the term 'non-celiac wheat sensitivity' (NCWS), since it is not known what component of wheat causes the symptoms in NCGS patients, and the investigators also showed that these patients had a high frequency of coexistent multiple food hypersensitivity. In a previous study, the investigators demonstrated, in a population of teenagers, a frequency of self-reported NCWS of about 12%; the frequency of GFD use was 2.9%, which was much higher than the percentage of known CD in the same population (1.26%). The aims of this study were 1) to determine the prevalence of self-perceived wheat and/or gluten-sensitivity in patients undergoing digestive endoscopy, irrespective to the motivations of the test, and 2) to evaluate the demographic and clinical differences between patients self-reporting wheat and/or gluten sensitivity and patients not reporting food hypersensitivity.
Researchers are trying to study the natural history of allergic reactions during anesthesia and its causes and risk factors.
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.
Objective: The purpose of this randomized controlled split-mouth clinical trial was to evaluate the effectiveness of MI paste in reducing sensitivity associated vital bleaching. Methods: 45 subjects were randomly divided into two groups, based upon which arch received MI Paste. Group 1 bleached Maxillary arch, Group 2 bleached mandibular arch. Two weeks later subjects stopped bleaching the first arch and started second arch. Sensitivity was measured by VAS daily log scale for two weeks. Shade was taken with colorimeter and Classic Vita shade guide at baseline, immediate post-bleaching, and two weeks post-bleaching. Longitudinal sensitivity over the 14 days period of bleaching was summarized. The Wilcoxon Signed Rank test was used to compare summary measures.
ALBAMA study is designed to find out if the effects of Penicillin allergy assessment pathway (PAAP) intervention is on penicillin prescribing