background: we aimed to evaluate the effect of body weight and body mass index (bmi) on bone mineral density (bmd) in healthy postmenopausal iranian women.    material and methods: two hundred postm­enopausal women (age between 51 and 69 years) who had presented to the nuclear medicine center at shariati hospital in tehran, iran between april 2012 and august 2013 were included in this cross sec...

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.    materials and methods: two hu...

Background: During lactation, metabolic changes in the bone in different areas of the body may affect the amount of bone mineral density.The aim of this study was to determine the relationship between breastfeeding and bone mineral density in women. Materials and Methods:  In this study, articles were searched at Cochran, Medline (via PubMed), Scopus, and Web of Science databases until June 201...

the aim of current study was to determine the effects of vitamin c on bone mineral density (in terms of osteoporosis), eggshell quality and investigation of correlation between these factors in laying hens reared under normal condition. one hundred and ninety two 24 - weeks - old laying hens diet was supplemented with 4 levels of vitamin c (0, 250, 500 and 750 mg/kg diet). the experimental desi...

BACKGROUND Research regarding risk factors and prevalence of low bone mineral density (BMD) among African-American and Caucasian college-aged women are limited. The objective of this cross-sectional study was to determine if selected predictors of BMD in African-American and Caucasian college-aged women differ by race. METHODS A total of 101 local African-American (n=50) and Caucasian (n=51) ...

background: β-thalassemia major is a hereditary life threatening anemia which requires regular blood transfusion. clinical symptoms of the disease are growth retardation, pallor, jaundice and skeletal alternations. the variety of bone disease in thalassemia major is manifested by diffuse bone pain or deformity, spontaneous and pathologic fractures and osteopenia or osteoporosis. this study aime...

introduction : osteoporosis is characterized by low bone density and increase in the risk of fracture. because in pregnancy and lactation there are many factors which influence bone mineral density, we sought to assess whether the accumulation of multiple pregnancies and the accompanying extended periods of lactation were a risky factor for low bone mineral density and osteoporosis. materials &...

Background: Celiac disease (CD), as an autoimmune disease has initiated since ingestion of food containing gluten. Constant intolerance to gluten causes damages of the small intestinal mucosa. One reason of mal-absorption in children and infants is CD. Additionally, about 75% of newly identified patients with CD have low bone mineral density (BMD). Many factors have role in metabolic bone disea...

In clinical practice, low bone mineral densi ty (BMD) and, therefore, scarcity of bone mineral is identified and quantified by dual energy X-ray absorptio-metry (DXA) (1). However, BMD predicts only 66Ê74% of variance of the bone strength (2), and many individuals with normal areal BMD suffer fractures (3). It is well recognized that other aspects of bone composition and structure may contribut...