Table 1.

Efficacies of electrotonic transmission within the microvasculature of the non-diabetic and diabetic retina. Values were derived from the data shown in Figure 2. The n-values are the number of pairs of perforated-patch recordings. See text for details concerning how these efficacies were calculated.

Microvascular location	Efficacy of transmission in non-diabetic vessels	Efficacy of transmission in diabetic vessels	P-value
Capillary
Radial transmission	0.76 ± 0.16 (n = 29)	0.81 ± 0.18 (n = 13)	0.4
Axial transmission	0.98 ± 0.16/100μm (n = 29)	0.89 ± 0.07/100μm (n = 13)	0.023
Tertiary arteriole
Radial transmission	0.51 ± 0.22 (n = 54)	0.54 ± 0.24 (n = 23)	0.6
Axial transmission	0.97 ± 0.22/100μm (n = 54)	0.88 ± 0.14/100μm (n = 23)	0.038
Secondary arteriole
Radial transmission	0.44 ± 0.12 (n = 15)	0.44 ± 0.21 (n = 17)	1.0
Axial transmission	0.98 ± 0.08/100μm (n = 15)	0.92 ± 0.08/100μm (n = 17)	0.008