BACKGROUND Osteoporosis, or porous bone, is a disease characterized by low bone mass density (BMD) and structural deterioration of bone tissue, leading to bone fragility and increased risk of hip, spine, and wrist fractures. There are numerous risk factors for osteoporosis. While many of these factors are non-genetic in nature, there is a definite genetic component responsible for this conditio...

Background: This study was aimed to evaluate the effects of physical exercise on bone mineral density (BMD), lean body mass (LBM) and bone biomarkers in children with acute lymphoblastic leukemia on chemotherapy. Methods: forty-six leukemic children were randomly assigned to two groups; exercise group (E) undergoing supervised mixed exercise program consisting of aerobic, resistance and flexib...

the present study assessed the real life therapeutic effects of weekly doses of alendronate in treating a group of osteoporotic patients in iran. the present historical cohort was conducted on patients who had undergone two or more bone mineral densitometry within an interval of 1.5-2 years in shariati hospital bone mineral density department between 2002 and 2010.patients were asked by phone a...

Background: Ageing of population worldwide will be responsible for a major increase of the incidence of osteoporosis in elderly. For the individual, osteoporotic fractures result in great disability as well as loss of quality of life and also represent an enormous burden for healthcare systems. This study was conducted to determine the prevalence of osteoporosis and it's association with serum ...

To determine the timing of peak bone mass and density, we conducted a cross-sectional study of bone mass measurements in 265 premenopausal Caucasian females, aged 8-50 yr. Bone mass and bone mineral density were measured using dual X-ray absorptiometry and single-photon absorptiometry at the spine (anteroposterior, lateral), proximal femur, radius shaft, distal forearm, and the whole body. Bone...

changes (bmd) and osteoporosis .helico bacter pylori which is a known cause of gastritis and peptic ulcer osteopprosis is one major cause of bone fracture and subsequent morbidity and mortality in the elderly population. several clinical and demographic parameters including aging, menopause, parity , inflammatory disease, hormonal, gastrointestinal, renal and metabolic disorders like vitamin d ...

BACKGROUND/AIMS Bone mass density values have been related with risk of vertebral fractures in post-menopausal women. However, bone mass density is not perfectly accurate in predicting risk of fracture, which decreases its usefulness as a surrogate in clinical trials. We propose a modeling framework with three interconnected parts to improve the evaluation of bone mass density accuracy in forec...

Background: The artificial neural networks (ANNs) are useful in solving nonlinear processes, without the need for mathematical models of the parameters. Since the relationship between the CT numbers and material compositions is not linear, ANN can be used for obtaining tissue density and composition.Objective: The aim of this study is to utilize ANN for determination of the composition and mass...

OBJECTIVE To investigate whether a postoperative weight-bearing regimen affects changes in bone mineral density and body composition after uncemented total hip arthroplasty, and to investigate the changes over a 5-year period after the surgical procedure. DESIGN Secondary analysis of a previous randomized controlled trial. METHODS A total of 39 patients were randomized to immediate full wei...

Background: Osteoporosis is one of the most common problems in the women, especially after menopause and at the old age. Bone densitometry of vertebrae of lumbar region and femoral neck is a non invasive and precise method for evaluation of bone mass density (BMD) and determination of fracture risk. Materials and Method: from different districts of Ahvaz city, more than 300 healthy men and wo...