string: …(del Nido et al, 1998; MacGowan et al, 2001a; Rubart et al, 2003) as well as the mitochondrial compartment (Hajnoczky et al, 1995; Kann et al, 2003; Scaduto and Grotyohann, 2003; Mironov et al, 2004), a feature which might complicate quantification and interpretation of Rhod2-Ca2þ fluorescence…