Fig. 5
- ID
- ZDB-FIG-130822-40
- Publication
- Sah et al., 2013 - Ion channel-kinase TRPM7 is required for maintaining cardiac automaticity
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Trpm7 deleted SAN exhibit impaired automaticity with slowed diastolic Ca2+ rise. Ca2+ transients measured by high-speed line-scanning confocal microscopy in (A) WT SAN and (B) KOαMHC-Cre SAN under basal conditions (Top) and after stimulation with ISO: 2 nM (Middle) and 100 nM (Bottom). (C) Mean Ca2+ transient frequency and (D) Ca2+ transient length in WT SAN compared with KOαMHC-Cre SAN under basal conditions and after stimulation with 2 nM and 100 nM ISO. (E) Representative Ca2+ transients from WT (Left) and KOαMHC-Cre (Right) showing the slope of diastolic Ca2+ rise (Ca2+ ramp). (F) Mean slope of the diastolic Ca2+ ramp in WT and KOαMHC-Cre under increasing ISO concentrations. *P < 0.05, **P < 0.01. |