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New Developments in CKD-MBD. Cell Biology of parathyroid in CKD. Kakuta Takatoshi 1 , Sawada Kaichiro 2 1Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Isehara, Japan. 2Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Isehara, Japan. pp.1801-1808
Published Date 2014/11/28
DOI https://doi.org/10.20837/4201412057
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 Parathyroid monitors the calcium concentration in blood by signals from calcium-sensing receptors, adjusts secretion of parathyroid hormone to keep constant calcium concentration in the body. Although parathyroid parenchymal cells consist of chief cells which secrete PTH, and oxyphil cells which are rich in mitochondria, all hardly perform mitotic proliferation in normal status. However, in CKD, PTH hypersecretion and hyperplasia are started by hyperphosphatemia, hypocalcemia, and activated-vitamin-D deficiency, and the secondary hyperparathyroidism develops. While treatment with cinacalcet hydrochloride salt induced apoptosis into the parathyroid cell, a possibility of promoting the transdifferentiation to oxyphil cells from chief cells was suggested. The specific accumulation to the parathyroid of an oncotropic photosensitizer suggests the possibility of photodynamic diagnosis and treatment of hyperparathyroidism.



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電子版ISSN 印刷版ISSN 0917-5857 医薬ジャーナル社

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