introduction acute respiratory infections (aris) continue as the leading cause of mortality in under 5-year-old children worldwide. we decided to review available data about the incidence and prevalence of all diseases included in this category in iran. methods a systematic review was designed to obtain related data from english and farsi sources, published or unpublished. an internet search of...

background: increased incidence and severity of acute lower respiratory tract infection (alri) are variably associated with malnutrition. objectives: we aimed to examine the prevalence of malnutrition in under-five year old hospitalized children with alri. patients and methods: children aged from 6 to 60 months, mostly from a low socioeconomic population, admitted with alri, were enrolled prosp...

background & aim: the purpose of present study was to examine and validate the folk's claim of inhalation of monechma ciliatum seeds powder by traditional african natives for cold and allergic conditions, so as to formulate a useful therapeutic agent to respiratory tract infections. experimental: different extracts were bio-assayed in vitro for their bioactivity to inhibit the growth of pat...

the respiratory tract contains numerous peptides secreted from special pulmonary epithelial cells whichare called endocrine cells. the function of neuroendocrine cells is modulated by amines. serotonin has strong vasomotor and bronchomotor effects in the airway mucosa. the objective of this study was to determine presence and distribution of serotonin-positive endocrine cells in respiratory tra...

Upper respiratory tract diseases in athletes are a very common medical problem. Training conditions in different sports disciplines increase the risk of upper respiratory disease. Epidemiological evidence suggests that heavy acute or chronic exercise is related to an increased incidence of upper respiratory tract infections in athletes. Regular physical exercise at high intensity may lead to tr...

Respiratory tract disorders in the juvenile rheumatic diseases are not infrequent and can have different clinical features when compared with those in the adult diseases. The purpose of this review article is to show the main manifestations of the respiratory tract, with an emphasis on lung involvement, in the most frequent juvenile rheumatic diseases.