ABSTRACT
Objective To analyze the epidemiological characteristics of AR and its correlation with serum IFN-γ and IL-4 levels in Bazhong City, and to provide theoretical basis for clinical prevention and treatment of AR. Methods Adopt the method of multistage stratified random survey from January 2019 to January 2020 bazhong 3 armour hospital otolaryngology seeing a doctor , with face to face questionnaire survey form the people generally, AR number of statistics, the main clinical symptoms and related symptoms, AR merger disease situation, according to the illness severity was divided into mild and moderately severe group, Five mL of elbow venous blood was extracted from AR patients, and 22 kinds of allergens were determined by using the allergen-specific IgE antibody detection kit (western blot). Serum IFN-γ and IL-4 levels were determined by enzyme-linked immunosorbent assay. Pearson correlation analysis was performed on serum IFN-γ and IL-4 levels and severity of allergic rhinitis. Results Among 1 243 patients who completed the questionnaire, the prevalence of AR was 275 (22.12%). There was significant difference in the prevalence of AR among different age groups (χ2=6.809 , P2=7.914 , P<0.0) and the prevalence of AR in workers was the highest (26.48%). Among 275 AR patients in Bazhong City, 153 cases (55.64%) had seasonal allergic rhinitis and 122 cases (44.36%) had perennial allergic rhinitis. The main clinical symptoms of AR patients were sneezing in 234 cases (85.09%) and nasal obstruction in 197 cases (71.64%). AR combined with bronchial asthma in 59 cases (21.45%), conjunctivitis in 28 cases (10.18%); the peak of AR incidence was mainly in July. Among 22 allergens, dust mite was the most common allergen in 139 cases (50.55%), followed by penicillin in 56 cases (20.36%). The main inducing factors were pollen 112 cases (40.73%) and cold 98 cases (35.64%). According to the severity of the disease, they were divided into mild group (n=178) and moderate to severe group (n=97). The serum IL-4 level in moderate and severe groups was significantly higher than that in mild group (P<0.05). The serum IFN-γ level in moderate and severe groups was significantly lower than that in mild group (P<0.05). Pearson correlation analysis showed that il-4 level was positively correlated with disease severity (r=0.492, P<0.05). IFN-γ was negatively correlated with the severity of the disease (r=-0.459, P<0.05). Conclusion The prevalence of AR is high in Bazhong city, and the main clinical symptom is sneezing. Among the complications, bronchial asthma is the most common. Colds and weather changes are the main factors causing AR.
ABSTRACT
The aim of this study was to investigate the association of serum vitamin D, IL-4 levels and vitamin D receptor gene polymorphism in coronary artery disease with and without type 2 diabetes mellitus. Methods: The study was conducted in Department of Medicine and Department of Biochemistry, Maulana Azad Medical College and Lok Nayak Hospital, New Delhi. It involved two groups of patients suffering from CAD with type 2 diabetes mellitus (n =40) and CAD without type 2 diabetes mellitus (n =40). Blood sample was collected from all subjects using all aseptic precautions. The levels of serum 25-hydroxy Vitamin D were measured by Electrochemiluminescence Immunoassay. Expected normal serum values considered was 14-80ng/ml. Serum IL-4 had been measured by using commercially available ELISA kit provided by GEN- PROBE Diaclone, France. Expected normal serum value considered was < 98pg/ml. Results: The mean age of patients in different study groups were CAD with DM, 59.15± 9.31 years and CAD without DM, 58.1±9.51 years. Mean vitamin D levels were 18.6±8.3 ng/ml in CAD with DM and 23.4±9 ng/ml in CAD without DM. Mean IL-4 levels were 1.31±0.27pg/ml in CAD with DM group, 1.21±0.29pg/ml in CAD without DM group. The FF genotype of vitamin D receptor gene was present in 47.5 % of CAD with DM patients and 35 % of CAD without DM patients. The Ff genotype was present in 37.5 % of CAD with DM patients and 52.5 % of CAD without DM patients. The ff genotype was reported in 15 % of CAD with DM patients and 12.5 % of CAD without DM patients. Allele F of Vitamin D receptor gene constituted 66 % of total gene pool in CAD with DM patients and 61 % in CAD without DM patients. No significant association was observed with respect to the VDR FokI genotypes and cardiovascular outcomes. Conclusion: Serum Vitamin D levels were decreased in both groups of patients, more significantly decreased in the presence of DM in CAD patients. Serum IL-4 levels were significantly higher in CAD with DM group as compared to CAD without DM group. No associations could be found between Vitamin D receptor gene FokI polymorphism and risk of CAD in diabetic and non-diabetic individuals. No significant correlation was found between vitamin D and IL-4 levels in the patients of both groups. The association between VDR FokI polymorphism, vitamin D and inflammatory markers needs to be further explored in diabetic CAD patients.