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Major histocompatibility complex (MHC), which plays a major biological function in immune response, is generally associated with so many human disease. During recent years a new clinical relevance of MHC disease. On the other hand there is a strong correlation between some autoimmune diseases and MHC system such as in some allergic abnormalities and its relation with HLA antigens. In order to investigate this concept 30 atypic asthmatic patients and 100 healthy controls were selected. Human leukocyte antigen (HLA) typing was performed by standard NIH procedures and the results analyzed. The frequency of HLA-A2, A11, Aw19 and HLA-B51 decreased in atypic asthmatic patients with no association recorded significantly between HLA-C and allergic asthma. The results of our study indicated that there was a significant relationship between allergic asthma and HLA-I antigens.

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Background & Objective: Urinary tract infections (UTI) are regarded as one of the most common infectious diseases. A remarkable percent of urinary tract infections are asymptomatic. In some cases of urinary tract infections, significant bacteriuria is not present. One the etiologic agents of culture negative genitourinary tract infections, which can be transmitted through intercourse, is Chlamydia Trachomatis. On the basis of high incidence of negative results of urine culture (Up to 60%) in patients suffering from UTI referring to Bou-Ali infectious hospital and taking into consideration the importance of genitourinary Chlamydial infections, we decided to study prevalence of Chlamydia Trachomatis in urine sample of patients with UTI referring to this hospital. Materials & Methods: This research was a descriptive study on the 320 patients referring to Bou-Ali infectious hospital in Zahedan, which were chosen by non-randomized sampling. One early morning urine sample was taken from these patients. After centrifugation, sediment of samples was used as antigen for Chlamy-check-I ELISA kits. Results: Out of 320 urinary specimens, 95 specimens (29.69%) were positive and 225 specimen (70.31%) were negative for Chlamydia Trachomatis. From 95 positive samples, 43 person (45.2%) were male and 52 person (54.73) were female. In both sexes the highest percent was related to 20-29 years old group. Conclusion: In accordance with above reported prevalence rate and bearing in mind the consequences of inappropriate treatment of Chlamydial infections (PID, infertility, extra uterus pregnancy, epididiomitis) the importance of precise treatment of Chlamydial infection and necessity of providing laboratory facilities for accurate and rapid diagnosis of Chlamydial infections in the area with high incidence of culture negative urine specimens is recommended.

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Background and Objective: Chlamydia, a zoonotic bacterial agent, is a major concern for both human and avian public health. This bacterium belongs to the family Chlamydiaceae, with 11 identified species. The Chlamydia psittaci (C. psittaci) species is shared between animal hosts and humans. Ornamental birds are among the hosts of C. psittaci. This bacterium causes respiratory and gastrointestinal problems in these birds. This study aimed to determine the prevalence of chlamydial infection in ornamental birds in Urmia, Iran.
Methods: This descriptive study was conducted on 60 fecal swabs collected from 60 ornamental birds in Urmia. Giemsa staining and molecular polymerase chain reaction (PCR) testing, using genus-specific primers to amplify a 580-base pair (bp) fragment of the ompA gene, were performed on the samples.
Results: The Chlamydia molecule was detected in 11.7% of budgerigars with gastrointestinal symptoms and in 5.88% of apparently healthy budgerigars. Additionally, the infection was detected in 11.11% of cockatiels, 14.28% of mynahs, 20% of canaries, and 11.11% of finches, but not in other species.
Conclusion: The results of this study demonstrate the presence of the Chlamydia bacterium in ornamental birds in Urmia, which can be considered a source of infection for gastrointestinal diseases.