Figure 1 | Scientific Reports

Figure 1

From: Structural heterogeneity of the rat pulmonary vein myocardium: consequences on intracellular calcium dynamics and arrhythmogenic potential

Figure 1

Confocal microscopy of di-8-ANEPPS labelled tubular networks in isolated PV, LA and LV CM. (A–D) represent examples of the different types of tubular networks found in the PV CM population. (A) CM with clearly organised TT, (B) CM with randomly distributed tubules, (C) CM without apparent tubular system and (D) CM with partially transversally organised tubular network. Scale bars represent 10 µm. (E) Tubular density in PV (n = 52), LA (n = 55) and LV CM (n = 15). (F) Percentage of CM with visually apparent and clearly organized transverse TT network in LA (n = 55), PV (n = 82) and LV CM (n = 15). (G) Transverse regularity of the TT network (TT power) in those PV with TT (n = 28) and LV CM (n = 15). (H) Width of PV CM with (n = 28) and without TT (n = 32).

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