the present study investigated the possibility of replacing salamon with modified shotor diluent (msd) and egg yolk (ey) with low density lipoprotein (ldl) for chilled storage of ram semen. good quality semen (>80% progressive forward motility (pfm) of sperm) from 3 fertile rams was collected using an artificial vagina and pooled for each experiment. low density lipoprotein was extracted from f...

objective: considering the various evidences due to effects of trace elements on the outcome of pregnancy, we decided to assess the effect of these elements levels in maternal and cord serum on low birth weight. materials and methods: an analytical cross-sectional study was performed on 344 pregnant women in labour and their neonates in maryam, akbarabadi and vali-e-asr hospitals in tehran, ir...

background probiotics are thought to interfere with the mechanisms involving in the pathogenesis of necrotizing enterocolitis in neonates. objectives this study was planned to assess the effect of prophylactic probiotics for the prevention of necrotizing enterocolitis in low birth weight neonates. patients and methods this prospective triple-blinded, interventional, randomized clinical trial en...

background: prematurity is the most common cause of death and disability and preterm infants, are prone to developmental complications. for this reason this study was designed for follow up of these babies until 2 years by modified ddst-2. methods: this study was a prospective longitudinal descriptive study from march 2009 to march 2011 in clinic of sheikh and imam reza hospitals, mashhad, iran...

background: metabolic bone diseases (mbd), including rickets and osteopenia, are important neonatal complications among preterm infants. this study aimed to determine the prevalence and risk factors of mbd in neonates with very low birth weight (vlbw). methods: this prospective study was conducted on vlbw infants from january 2012 to july 2013. inclusion criteria were birth weight of ≤1500 g an...

conclusion we constructed and validated a ct colonography phantom with correct density allowing performance of reproducible experiments. materials and methods we found 15 different phantom designs by literature search and compared their advantages and disadvantages based on their description and images. we tested various materials for density and mechanical properties and constructed a phantom ...

background: low back pain is a common health problem that has many consequences, including disability and absence from work.this study aimed to determine the prevalence of low back pain among women referred to quds clinic in tehran, iran.  material and methods: this cross-sectional study was conducted on women referred to quds clinic, in east of tehran. a total of 100 patients were studied over...

background: low back pain is the most common cause of disability and absence from work among young and middle-aged people. as there is limited knowledge regarding this problem among iranian students, this study aimed to determine the preva­lence of low back pain and its ‘related socio­demo­graphic factors among students of islamic azad university, tehran, iran.    material and methods: this is ...

context low back pain (lbp) is among the most prevalent musculoskeletal conditions in the developed countries. it is a common problem causing disability and imposing a huge economic burden to individuals and state organizations. imaging plays an important role in diagnosis of the etiology of lbp. evidence acquisition the electronic databases included: pubmed (1950 to present), ovid sp medline (...

background: low back pain (lbp) is one of the most common musculoskeletal complications of today’s societies which, poses a big portion of health expenses and work absentees. lumbar disc herniation is claimed to be one of the several causes of lbp. conservative therapies like physiotherapy are found to be beneficial for treatment in such a kind of lbp. however, there is low evidence proving tra...