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lüll Role of bone biopsy in stages 3 to 4 chronic kidney disease Gal-Moscovici A; Sprague SMClin J Am Soc Nephrol 2008[Nov]; 3 Suppl 3 (Suppl 3): S170-4Secondary hyperparathyroidism develops relatively early in chronic kidney disease as a consequence of impaired phosphate, calcium, and vitamin D homeostasis. The disease state in chronic kidney disease, which includes the histologic features of bone disease, defined as renal osteodystrophy, and the hormonal and biochemical disturbances, have recently been redefined as a disease syndrome and is referred to as "chronic kidney disease-mineral and bone disorder." As chronic kidney disease progresses, specific histologic disturbances in the bone develop, which may or may not be predictable from the biochemical and hormonal changes that are associated with chronic kidney disease. In addition, patients may have had underlying bone disease before developing kidney failure or may have been treated with agents that will alter the classical pathologic findings of the bones in chronic kidney disease and their relation to parathyroid hormone. Thus, in stage 5 chronic kidney disease, bone biopsy with quantitative histomorphometric analysis is considered the gold standard in the diagnosis of renal osteodystrophy. In contrast to stage 5 chronic kidney disease, there are very few data on the histologic changes in bone in earlier stages of chronic kidney disease. There also is no adequate information on the etiopathogenesis of bone disease in stages 3 and 4 chronic kidney disease. Thus, because biochemical data cannot predict bone pathology in stages 3 and 4 chronic kidney disease, bone biopsy should be used to define these bone changes and to allow appropriate therapeutic approaches.|Biopsy[MESH]|Bone Diseases, Metabolic/etiology[MESH]|Bone and Bones/*pathology[MESH]|Chronic Disease[MESH]|Fibroblast Growth Factor-23[MESH]|Fibroblast Growth Factors/physiology[MESH]|Humans[MESH]|Kidney Diseases/complications/*pathology[MESH]|Osteogenesis[MESH]|Parathyroid Hormone/blood[MESH] |