View clinical trials related to Rhinitis, Allergic.
Filter by:Allergic rhinitis (AR) represents one of the most common global health problems with seriously increasing incidence over the last decades.The goal of the treatment of rhinitis is to prevent or reduce the symptoms through reduction of the inflammation of affected tissues. Acupuncture and pranayama yoga exercises had reported a significant improvement in daily symptoms and an increase of symptom-free days in many studies enrolling geriatric patients.
Allergic diseases such as asthma, allergic rhinitis (AR) and atopic dermatitis affect more than 25% of the world population and are the leading cause of illness in children. The complex interplay between genetic, environmental and immunological risk factors results in the manifestation of allergic diseases . The pathological presentation of allergic disease involves the activation of both the innate and adaptive immune systems, resulting in a multifaceted response in specific target tissues such as the airways . This response results in the recruitment of inflammatory cells to target tissues and the production of specific IgE antibodies, cytokines and other inflammatory mediators [11], [12]. It is well established that allergic inflammation triggers neuronal dysfunction, which activates specific inflammatory mechanisms, potentially leading to structural changes in the diseased tissue . Neurotrophins are a family of structurally related proteins initially discovered to be involved in regulating neuronal development and now known to govern both peripheral and central nerve growth. BDNF is a secretory protein belonging to the neurotrophin family and is involved in a range of neural processes during human development [19], [20]. In the early stages of development BDNF is essential for neurogenesis, survival and maturation of neuronal pathways. In the adult, alongside neurotransmitters, hormones and other neurotrophins, BDNF maintains synaptic plasticity, dendritic growth and the consolidation of long-term memory. The biological effect of BDNF is mediated via its binding to the trkB receptor. The activation of these receptors on eosinophils may be important in regulating the inflammatory cascade leading to allergic disease [15], [24]. Neurotrophin mediated activation of bronchial eosinophils might therefore play a role in the regulation of eosinophilic inflammation in allergic asthma . The BDNF gene is located on chromosome 11p13 and is alternatively spliced resulting in several different transcripts [26]. Genetic polymorphisms in BDNF have been associated with allergic phenotypes such atopic dermatitis [27] and asthma [28], [29], [30], [31] in different populations. The functional polymorphism rs6265 (Val66Met) has been shown to regulate intracellular trafficking and affect the secretion of BDNF [32]. Nerve growth factor (NGF), a neurotrophin that is expressed in the glandular, nasal epithelium, and peripheral nerves in the nasal mucosa, has been shown to induce biochemical and structural changes in nerves that can lead to hyper-responsiveness [33], [34], [35] The biological effects of neurotrophins are mediated by binding either to the high-affinity tyrosine kinase (trk) receptors or to the low-affinity receptors known as pan-neurotrophin receptor p-75.
The combined use of dexamethasone and oxymetazoline has a vasoconstrictive, anti-inflammatory and anti-allergic effect when applied topically in diseases of the upper respiratory tract. The main goal of this research is Evaluation of the effectiveness of Dospray® nasal spray in the treatment of persistent allergic rhinitis. The study will involve 126 patients diagnosed with allergic rhinitis: 1. Patients taking Dospray = 63 2. Patients on other alternative treatment = 63 Duration of Patient Participation - 7-10 days (duration of treatment for an individual patient).
The study will assess the the burden of living with allergic rhinitis (AR) and the effect of AR on school performance for children and adolescents in Denmark.
The goal of this observational study is to learn about the agreement between sensors analyzing algorithm and body plethysmography in measuring oral and nasal breathing in healthy adults, and in patients with chronic rhinosinusitis, asthma and chronic obstructive pulmonary disease. The main question it aims to answer is: • Is the algorithm-based method accurate enough in analyzing respiratory obstruction as compared to body plethysmography (reference method)? Participants will perform a short breathing protocol (oral and nasal breathing with different masks) during which time their breathing is monitored with both methods.
This study will assess the effect of taking vitamin C on allergy skin test.
Eosinophilic esophagitis (EoE) is a chronic inflammatory esophagus disease that is presented in patients with a history of recurrent dysphagia. EoE is closely related to other pathologies with an immuno-allergic etiopathogenesis such as atopic dermatitis (AD), IgE-mediated food allergy, allergic rhinitis and bronchial asthma. While the importance of the correlation between diet and food allergy has been largely demonstrated, less is known about the exact role of sensitization to aerollergens in the progression and recrudescence of symptoms. In support of this correlation there is evidence of a seasonal trend in the new diagnoses of EoE, of the possibility of the de-novo onset of the pathology following massive exposure to a specific aeroallergen and the demonstration that the degree of esophageal eosinophilia varies according to the climatic zone and the season of the year. The detailed knowledge of this correlation could clarify some aspects of the etiopathogenesis and natural history of EoE, improve and personalize the clinical-diagnostic management of affected patients and provide new therapeutic targets. Our aim is evaluating the possible existence of a correlation between the recrudescence of dysphagia symptoms and a specific month of the year and/or specific season.
Patients with perennial allergic rhinitis whose symptoms are not controlled (visual analogue scale [VAS] ≥5) by 2-week treatment with intranasal corticosteroid will receive concomitant intranasal antihistamine and corticosteroid for 2 weeks. After 2-week treatment, changes in clinical parameters including VAS, total nasal symptom score (TNSS), total ocular symptom score (TOSS), rhinoconjunctivitis quality-of-life questionnaires (RQLQ) will be evaluated.
Cat allergy is the most common animal allergy, affecting approximately 1 in 5 adults worldwide. The prevalence of allergy to furry animals is increasing, and cat allergy is a major risk factor for the development of asthma and rhinitis. Fel-d1 is the major feline allergen, to which 95% of cat allergic people react. All cats produce Fel-d1 regardless of breed, age, coat type, sex or weight. Fel-d1 is contained primarily in the saliva and sebum of cats. This allergy manifests itself as allergic rhinitis (AR) (sneezing, cold, coughing, conjunctivitis with watering and itching), severe asthma, and irritation and swelling of the skin when scratched. A new approach to managing cat allergies is to neutralize the allergens at the source by feeding domestic cats a diet containing anti-Fel-d1 IgY antibodies. The purpose of this pilot study is to determine whether feeding domestic cats a food containing an egg product with anti-Fel d1 IgY (PRO PLAN® LIVECLEAT®) induces a reduction of allergic symptoms in their owners.
Observational, cross-sectional, prospective, multicentric study in France with private paediatricians to describe the management of allergic rhinitis in children.