The phosphatonin FGF23 is strongly associated with disease severity and long-term outcome in patients with nonischaemic heart failure and preserved renal function. Further studies are needed to evaluate the pathophysiologic role of FGF23 and its potential as a biomarker in heart failure.

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The p53 mutation R273H in tumor cells leads to increased glucose uptake, lactic acidosis, and accelerated tumor growth, as was previously shown in mice. We here present a patient with mantle cell lymphoma harboring this p53_R273H mutation, whose clinical course is characterized by severe lactic acidosis, hypoglycemia, and aggressive disease.

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