نتایج جستجو برای: calcium density
تعداد نتایج: 570121 فیلتر نتایج به سال:
1. Moderately overweight, premenopausal women were assessed for bone mineral density of the total body, lumbar spine and proximal femur before and after 6 months of modest dietary restriction (minimum 4800 kJ/day). The aim was to evaluate the effect of loss of body mass on bone mineral density. 2. Dietary assessment included two analyses of 3 day weighed food intakes, one before and the other a...
Background The role of calcium in physiological phenomenona such as sperm acrosome reaction and hyper-activation has been well known. Calcium ionophore A23187 is routinely used for induction of acrosome reaction in mammalians sperm. Therefore, we decided to evaluate the effect of calcium ionophore A23187 on the sperm hyper-active motility patterns. MaterialsAndMethods Ten semen samples from ind...
Calcium has been implicated as a factor regulating the motility and proliferation of cultured fibroblasts. Since little is known about how the intracellular concentration of calcium is regulated in cultured fibroblasts, we have characterized the microsomal calcium transport activity of Balb/c 3T3 cells, an established line of mouse fibroblasts. Calcium uptake by the microsomal fraction is enhan...
Introduction: Aging increases the probability of the concurrent incidence of osteoporosis and hypertension. It is demonstrated that antihypertensive drugs can affect bone metabolism. The object of this study was to evaluate the effects of antihypertensive medication on bone mineral density of maxilla and mandible in males over 50 years old using CBCT. Methods: In this analytical cross-sectio...
Dietary calcium intake and bone density In the January issue of the British Journal of Nutrition Ramsdale et al. reported their study on bone density and calcium intake in fifty-six healthy pre-menopausal women. They showed that there was a correlation between calcium intake and bone density at all three femoral sites and at the spine. In a study of young Chinese women, in whom calcium intake i...
BACKGROUND Women may lose bone during lactation because of calcium lost in breast milk. We studied whether calcium supplementation prevents bone loss during lactation or augments bone gain after weaning. METHODS We conducted two randomized, placebo-controlled trials of calcium supplementation (1 g per day) in postpartum women. In one trial (the study of lactation), 97 lactating and 99 nonlact...
Received: 19 July, 2009 Accepted: 21 Oct, 2009 Abstract Background & Aims: The purpose of this study was to investigate the effects of a 12-week selective aerobic exercise trial in water on bone density in obese postmenopausal women. Materials & Methods: Twenty obese post menopausal women volunteered to participate in this study. The subjects were randomly divided into an experimental group...
BACKGROUND Calcium and vitamin D may be inversely related to breast cancer risk, in part by affecting mammographic density. However, results from previous, mostly cross-sectional studies have been mixed, and there have been few randomized clinical trials of the effect of calcium and vitamin D supplementation on change in mammographic density. METHODS We assessed the effect of one year of supp...
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