Recommendations for dietary calcium intake and bone health: the role of health literacy
Hosking, S.M., Pasco, J.A., Hyde, N.K., Williams, L.J. and Brennan-Olsen, S.L. 2016, Recommendations for dietary calcium intake and bone health: the role of health literacy, Journal of nutrition & food sciences, vol. 6, no. 1, Article number : 1000452, pp. 1-3, doi: 10.4172/2155-9600.1000452.
Osteoporosis, a common disease of the skeleton, involves microarchitecturaldeterioration of the bone matrix and depletion of bonemineral; this results in an increased susceptibility to fracture . Postfracture,there is a plethora of financial, personal and psychosocialoutcomes, including reduced mobility, impairment of daily activities,inability to work and loss of confidence [2,3]. A hip fracture has themost severe implications: one in five individuals die within the firstyear, while 60% of individuals who survive a hip fracture still requireassistance to walk one year later, and 33% are totally dependent or areadmitted to a nursing home [2,4]. Bone mass is an important predictorof osteoporosis, and future fracture risk , and calcium plays animportant role in normal growth, development and maintenance of theskeleton , including providing a dynamic store to maintain theintra- and extra-cellular calcium pools . Calcium homeostasis isregulated by an integrated hormonal system that involves calcitonin,parathyroid hormone (PTH) and the PTH receptor, and 1,25-dihydroxyvitamin D and the vitamin D receptor [7,8], along withserum ionized calcium, and the calcium-sensing receptor . Whenplasma concentrations of ionized calcium fall below optimal levels,bone resorption increases in order to restore the mineral equilibrium.
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