air pollution is a major concern of new civilized world, which has a serious toxicological impact on human health and the environment. it has a number of different emission sources, but motor vehicles and industrial processes contribute the major part of air pollution.according to the world health organization, six major air pollutants include particle pollution, ground?level ozone, carbon mono...

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background: early detection of renal diseases in children can be beneficial for prevention, delaying disease progression, reduction of the number of patients with progressive renal failure. the most common metabolic disorders predisposing renal calculus in children are: hypercalciuria, hyperuricosuria, hyperoxaluria, renal tubular acidosis, and hypocitraturia. objectives: in this research, we s...

background: complete and fast diagnosis, registry and treatment programs are the main effective strategies for controlling infectious diseases. in addition, an organized and extended infectious disease surveillance system is crucial in designing and monitoring communicable diseases control programs. the quality of the surveillance system can be evaluated by several indices such as timeliness, c...

background: nutrition is among the most important factors influencing coronary artery disease. objectives: here we aimed to study the nutritional status of patients with and without coronary artery disease (cad). patients and methods: we performed a cross-sectional study on 600 patients referred to a cardiology clinic with the signs of acs. the patients were then classified in to two groups (ca...

waterborne epidemics of viral diseases have occurred and been reported over the years, and isolation of viruses from water of different sources has been made possible by different methods of concentration. it is now believed that bacterial parameters of water purity may not provide an adequate index as to the safety from a virological point of view. in this study eight samples from four main te...

common variable immunodeficiency (cvid) is a primary immunodeficiency disease characterized by hypogammaglobulinemia and recurrent bacterial infections especially in respiratory and gastrointestinal systems. we present here 2 cases of cvid with gastrointestinal complications. case 1 is a 25-year-old man with a history of chronic diarrhoea from childhood. ultrasonography revealed ascites, with l...

in recent years, tuberculosis has had a significant rise, caused mainly by the epidemic of acquired immunodeficiency syndrome. the anorectal tuberculosis is a very rare presentation. herein, we presented a 67-year-old man who has had renal transplantation and presented with hematochezia and painful defecation since 6 months before. biopsy was taken from the lower rectal ulcerated lesion. histop...