Measurements of 24h urine samples include volume, electrolytes, creatinine, micro-albumin, and aldosterone. Urinary proteomics will be done in collaboration with Prof Harald Mischak, SME Mosaiques (mosaiques-diagnostics.de) by capillary electrophoresis coupled to mass spectrometry according to standard operating procedures in an environment with proper quality control [Mischak et al.].