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Aims: Salivary Immunoglobulin A is the most important part of immune system in upper respiratory tract. The findings of the studies regarding hormonal and immune changes, especially mucosal immune system, are highly contradictory and different. The purpose of this study was to compare the effect of intense exercise in the morning and evening on the concentration of salivary cortisol and Immunoglobulin A, in young swimmers.

Methods: This study is a quasi- experimental design conducting in 2010-11 academic years. The population of the study included 120 young boy swimmers, studying in a guidance school in Gonabad city, of which 20 were selected using random convenient sampling method. The subjects performed the selected exercise in two times, one on 11 in the morning and the other after 16 days. Saliva samples were taken before and immediately after the intensive exercise. The data were analyzed using SPSS 14 software by paired T-test.

 Results: A significant decrease of Immunoglobulin A was observed in the morning exercise. Likewise, a significant decrease in cortisol was seen in the evening exercise. The amount of swimmers’ salivary Immunoglobulin A and cortisol had a significant decrease after the exercise compared with before it (p=0.0001). Moreover, their amount in the evening turn had a significant decrease compared to the morning turn (p=0.0001).

Conclusion: intense exercise decreases the salivary Immunoglobulin A and cortisol levels in the morning and evening that may affect the incident of respiratory tract infections.

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Abstract Aims: Planting Spartium junceum L. has increased immensely in urban areas due to its aromatic petals. Since the petals and stamens in aromatic plants are of important herbal allergenic agents, the aim of this study was to investigate the allergenicity of petal and stamen at old ontogenical staged Spartium junceum L. in Guinea pig. Materials & Methods: In this experimental study, 21 male Hartley Guinea pigs were randomly divided into three groups including 7 animals. To the first group buffered phosphate saline, second group old petal extract and the third group petal and stamen extract were injected. The extracts were prepared with 16% concentration. The injections were continued within 4 weeks, once per week intraperitoneally and in the fifth week subcutaneous injection was performed. A week after the last injection blood sampling was done from the heart of animals and the number of Eosinophils, Immunoglobulin E and blood sugar levels were measured. To data analysis SPSS 16 software, ANOVA and dependent T tests were used. Findings: In skin‌‌‌‌ test wheal diameter in both groups treated with Spartium junceum L. significantly increased compared to control group (p<0.001). Blood sugar in groups treated with petal and stamen showed significant increase in comparison with control group (p<0.05). In electrophoretic profiles 3 protein bands was observed in the range of 46 to 85kD in both treated groups which these bands were much more colorful in petal and stamen group. Conclusion: Allergenicity of petal with stamen of Spartium junceum L. at old ontogenical stage is more than petal.