the chronobiology of the acute myocardial infarction (ami) is an interesting matter for recognition of the biological mechanism that might trigger ami. the present study was aimed to investigate the circadian, seasonal and circannual variation of the ami occurrence with solar, lunar, and christian months. a retrospective study of 1174 cases with diagnosis of ami was conducted. all cases include...

background implant removal is a common procedure in orthopedic surgery which can be associated with many complications such as scar formation, hematoma, nerve injury, infection, and refracture. indications for orthopedic implant removal have declined in recent years. most studies have considered orthopedic hardware removal as an unnecessary procedure in the absence of severe complications such ...

the aim of the present study was to examine the periodontal condition of an adult population in three isolated regions in greece and to determine the association of periodontal disease with several demographic, behavioral and environmental factors.the study population consisted of 640 individuals, aged 20 to 69 years from three isolated regions. the following indices were assessed: pocket depth...

purpose this study was performed to determine the possible causes and mechanisms of fatalities among iranian mountaineers during climbing. methods by contacting several sources, deceased mountaineers were identified. data about the causes and mechanism of death was retrospectively obtained using a standard questionnaire for each case. results a total of 29 deaths were identified from march 2006...

the incidence of virulence factors among 114 enterococcus faecalis and 35 enterococcus faecium strains from different clinical specimens were compared with those isolated from control groups. a few of the isolates expressed two or more of the following traits simultaneously: hemolysin, aggregation substance, gelatinase, dnase, hemagglutinin and antibiotic resistance. the frequencies of hemolysi...

background: vitiligo is a dermatological disorder of unknown etiology with a common incidence in southern iran. presence of autoantibodies to melanocyte antigens suggested an autoimmune basis of the disease. objective: in this study, the presence of rheumatoid factor (rf) in sera and skin biopsies of vitiligo patients was investigated. methods: the presence of rf in sera of 35 vitiligo and 32 n...

over a period of four years, we followed 200 male cases (female patients were excluded from this study because from early childhood, the majority of iranian girls have their ears pierced which tends to distort the ear lobe and renders the diagnosis of the crease difficult) of proved coronary artery disease (angina pectoris, coronary insufficiency, and myocardial infarction) in a private clinic ...

the data for this study has been collected from a questionnaire examining the relationship between birth weight of the new born and some physical and socio-economic characteristics of the mother. between dec.1975 to jan.1976, 1553 women who had referred to two hospitals in tehran for labor: 981 to farah maternity and 572 to firoozgar hospital have been interviewed. the results of the study have...

background: socioeconomic status and demographic factors, such as education, occupation, place of residence, gender, age, and marital status have been reported to be associated with obesity. we conducted a systematic review to summarize evidences on associations between socioeconomic factors and obesity/overweight in iranian population.   methods : we systematically searched international datab...

background: 63tpreeclampsia63t is one of the 63tcommon complications63t 63tduring63t 63tpregnancy with63t 63tconsiderable maternal and fetal63t 63tmortality63t 63tand63t 63tmorbidity63t. 63thypercoagulability63t 63tdue to63t 63tthrombophilic63t 63tfactors63t 63tis63t 63tdiscussed as the etiology involved in63t 63tthis disease63t. objective: 63tthe aim of this study63t was to evaluate 63tselecte...