John C. Stevenson, Michael S. Marsh's An Atlas of Osteoporosis, Third Edition PDF
By John C. Stevenson, Michael S. Marsh
The 3rd variation of this winning Atlas of Osteoporosis is designed to supply a variety of physicians with a pictorial advisor to this significant ailment. The illustrations are a good educating source and the textual content presents a concise review to osteoporosis. For the 1st time, textual content and illustrations are absolutely built-in. The publication includes information of skeletal biology and the pathophysiology of osteoporosis, with a chain of diagrammatic and SEM illustrations. there's better emphasis on medical elements during this variation, really in parts akin to food, workout, and development. There also are vital sections on prognosis utilizing bone densitometry and the laboratory evaluate of bone problems.
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Extra info for An Atlas of Osteoporosis, Third Edition
SINGLE-PHOTON AND SINGLE X-RAY ABSORPTIOMETRY Single-photon absorptiometry (SPA) involves passing a collimated beam of monoenergetic photons from a radioiodine (125I) source through a limb and measuring the transmitted radiation, using a sodium iodide scintillation detector. There is differential absorption of photons by bone and soft tissues, which allows the total bone mineral content in the path of the beam to be calculated and expressed in grams per centimeter. The method cannot differentiate between cortical and trabecular bone, and interference from surrounding tissue limits its use to the measurement of peripheral sites, such as the distal or mid-radius.
From reference 13, with permission small. 4 years showed greater alcohol intake in those who developed fracture than those who did not28. This finding may be due to an effect of alcohol on balance rather than bone mineral density. A recent study of predictors of bone loss from the Framingham cohort demonstrated that an alcohol intake of 207 ml or more (≥ 7 fl oz) per week is a risk factor for bone loss, but concluded that weight, estrogen use, and cigarette smoking were the most important predictors of bone health29.
Bone loss probably begins in the third or fourth decade of life and may be due, at least in men, to a decline in osteoblast function45. 5% per year. In women, bone mineral density appears to fall exponentially, commencing just before the menopause46,47 when ovarian function begins to decline. This loss is chiefly due to the increased resorption of bone48–51 superimposed on the effects of aging. The loss of bone is greatest initially and may be as much as 5% per year for vertebral trabecular bone52,53.
An Atlas of Osteoporosis, Third Edition by John C. Stevenson, Michael S. Marsh