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9 avril 2011 6 09 /04 /avril /2011 18:23

The bone and beyond: 'Dem bones' are made for more than walking pp428 - 430
L Darryl Quarles
doi:10.1038/nm0411-428


Bone is an endocrine organ that reaches out to other tissues, orchestrating responses that may have a role in pathology and physiology at distant sites. In 'Bench to Bedside', L. Darryl Quarles discusses recent studies showing how a feedback loop between the bone hormone FGF-23 and renal phosphate excretion and vitamin D metabolism is integrated with the classical PTH-vitamin D axis in chronic kidney disease (CKD). This new paradigm may change the diagnosis and treatment of disordered mineral homeostasis of people with CKD. A recent epidemiological study argues a mechanistic link between bone loss and atherosclerosis, maladies usually linked to aging. In 'Bedside to Bench', Sundeep Khosla discusses how this clinical study underpins research showing that mediators of inflammation and oxidative stress share common mechanisms that may lead to this calcium shift during aging

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