Active clinical trials for "Hypersensitivity"

Impaired baroreflex sensitivity (BRS) is a marker of autonomous dysfunction, which may play an important role in the long-term development of hypertension. Perioperative patients with hypertension is rapidly growing in all populations worldwide. However, no study has reported the values of BRS in this cohort. The aim of this study was to estimate the value of BRS for hypertension in a surgery cohort.

Food allergies represent an increasing health concern in the industrialized countries and especially affect pediatric patients. In this population adverse reactions against food compounds can lead to anaphylactic reactions. Despite substantial research efforts, clinical markers predicting disease severity and symptoms are missing to date. Recent studies have revealed that sphingolipids, especially sphingosine-1-phosphate (S1P), play an essential role in allergy. It was reported that asthmatic patients have higher S1P levels in bronchiallavage fluids after allergen challenge. First experimental studies revealed a correlation of S1P and the outcome of anaphylaxis. Furthermore, we have shown in our recent mouse study that S1P homeostasis is pivotal for food allergy induction and effector cell response. Therefore, it is the aim of the presented pilot project to evaluate whether S1P serum titers are altered in food allergic children and if the S1P levels correlate with the outcome of anaphylaxis during double blind placebo controlled food challenges (DBPCFCs).

The objective of this study was to detect whether preoperative anxiety and pain sensitivity had effects on the consumption of anesthetics, time to achieve desired level of sedation, patient and endoscopist satisfaction, and postoperative recovery time and pain in deep sedation.

The purpose is to compare clinical, functional, professional and socio-economical characteristics of patients with occupational asthma and work aggravated asthma. Secondary purposes are: to evaluate diagnostic value of new non-invasive techniques such as exhaled nitric oxide and cytology of induced expectoration; to estimate medical-social becoming of diagnosed work-related asthma after one year; to establish a biobank of blood samples of individuals with work related asthma for measurement of cytokines and search for genetic polymorphisms associated with asthma.

Caucasian male and female participants age 18 years of age and older will be enrolled in this study if they have known birch or peanut allergies or known to be non-atopic. Participants will undergo skin testing to confirm their allergies if not completed in the last 12 months. Medications and medical history will be captured with a focus on atopic disorders. Participants will undergo birch and peanut patch testing to assess penetration and if potential correlation exists with filaggrin genotyping and phenotyping. Blood samples will be drawn from participants and DNA isolated for genotyping of null mutations in filaggrin.

This study evaluate the mineral status of infants with cow's milk protein allergy which is affected due to the elimination of milk , and the change in this mineral status after receiving amino acid - based formula for 12 weeks.

Characterize the degree of the activation of serum eosinophilc cationic protein (sECP) by measuring its level and establishing whether it is a useful parameter in monitoring oral cow's milk allergy Measure the MPV and NLR levels in infants with CMPA and to determine the suitability of these parameters as biomarkers in diagnosis of CMPA.

This is a prospective birth cohort study assessing the role of maternal and environmental factors on the development of allergic diseases in children. Pregnant mothers will be enrolled and we will examine her skin barrier with skin tape strips (STS) and transepidermal water loss (TEWL), along with blood work. We will then follow her offspring and perform similar testing, along with detailed questionnaires inquiring about exposures such as use of detergents and soaps, sunlight exposure, and pollution exposure. When the infant is around 12 months old, we will contact the family via telephone to see if the child developed any allergic conditions within their first year of life, such as eczema, food allergy, or wheezing. A final questionnaire will be performed.

The current diagnostic criteria for a heart attack require evaluation of a patient's symptoms and ECG but importantly a blood test called troponin. With advancing technology this test has become more sensitive and is now called a high sensitivity troponin. This is a very effective way of rapidly excluding a heart attack if the test is negative. However there are a number of causes of a raised high sensitivity other than a heart attack, particularly critical illness states. In the absence of features of a heart attack an abnormal result therefore suggests that the heart is inflamed or unwell causing the release of high sensitivity troponin. The DIGNITY study will examine the consequences of high sensitivity troponin elevation in patients in intensive care and assess whether it has a role as a biomarker for predicting outcome.

Central sensitization (CS) is as increased response to normal or sub-threshold stimuli of central nervous system. Patient history and physical examination, quantitative sensory testing(QST), imaging methods, neuroinflammatory marker levels, electrodiagnostic studies and clinical scales can be used in the diagnosis of CS, but there is no standardized method yet. Among these methods, clinical scales are preferred because they are practical, inexpensive and do not require experience. The Sensory Hypersensitivity Scale was developed by Dixon et al. for investigate the personal hypersensitivity and CS. The aim of this study is to investigate the Turkish validity and reliability of the sensory hypersensitivity scale.