“…Furthermore, subclinically impaired renal function may contribute to hypervolemia in our long-term abstinent alcoholics. In fact, tubular dysfunction has been demonstrated for 30 -40% of alcoholics during the first weeks of abstinence (Angeli et al, 1991;De Marchi and Cecchin, 1986a;De Marchi et al, 1993;Martines et al, 1989;Sadler et al, 1995;Tang, 1991;Vamvakas et al, 1998), together with morphological alterations of the kidneys (Sadler et al, 1995). That these renal alterations might partly persist is supported by the increased NT-pro-ANP, known to be high in renal dysfunction (Sundsfjord et al, 1988), and by the decreased creatinine clearance over the entire study period as compared with controls.…”