osteoporosis as a skeletal disorder characterize by compromised bone strength predisposing a person to an increased risk of fracture. all people should be encouraged to take efforts to prevent bone loss and fractures. nutrition is one of several factors that can be modified to reduce osteoporosis risk. the purpose of this review article is assessment the role of the other nutrients the exceptio...

Context: The hormonal factors involved in the regulation of peak bone mass in men have not been fully investigated. Aside from gonadal steroids and somatotropic hormones, thyroid hormones are known to affect bone maturation and homeostasis, and are additional candidate determinants of adult bone mass. Objective: We aimed to investigate between-subject physiological variation in free and total t...

Peak bone mass, a determinant of osteoporosis at older ages, is affected by genetic, nutritional, lifestyle, and hormonal factors. Adolescence is a critical time for peak bone mass accrual, and boys achieve a higher peak bone mass than girls. We have reported vitamin D insufficiency in adolescents in our population, but its impact on bone remodeling is unclear. We systematically evaluated the i...

A strong emphasis has been placed on the effects of sports on bone mass and possibility of preventing future osteoporosis1, considering that strenuous physical exercise plays a crucial role in the bone mass gain process2. The load mechanisms from the exercises increase bone mineral density, regardless or gender and age of those who practice them3. Bone tissue dynamically responds to the imposed...

purpose: given that weight and body mass index (bmi) are considered as modifiable factors in osteoporosis, the present study aimed to examine the relationship of weight and bmi with bone mineral density (bmd) and bone mineral content (bmc) at the femur and lumbar vertebrae in perimenopausal women. methods: in this descriptive-correlational study, we measured the bone density of the femur and lu...

The purpose of this study was to assess the long-term effects of aging and sex hormone deficiency on skeletal metabolism and body composition in rapidly growing male rats. Sprague-Dawley male rats were sham-operated (sham) or orchidectomized (ORX) at 3 months of age. Eight sham rats and eight ORX rats at each time point were serially sacrificed at 3, 4, 8, 12, 15, and 23 months of age. Bone mas...

background: the aim was to investigate the relationships among lean mass (lm), fat mass (fm), and bone mineral density (bmd) in women stratified by body mass index (bmi) (bmi – normal-weight, overweight, obese) and to determine threshold at which body fat assumes negative relationship with bmd. methods: this was a cross-sectional study in 471 healthy caucasian women, aged 18-67 years. bmd, lm, ...