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Table 2 Parameters relating to baroreflex open-loop static characteristics during baseline and T3 periods obtained in the empagliflozin group

From: Acute effects of empagliflozin on open-loop baroreflex function and urine glucose excretion in Goto-Kakizaki diabetic rats

 

Baseline

Empagliflozin

P value

Total reflex arc

   

 P1, mmHg

64.2 ± 7.5

64.0 ± 4.9

0.982

 P2, mmHg−1

0.106 ± 0.010

0.111 ± 0.016

0.832

 P3, mmHg

139.9 ± 3.5

140.5 ± 2.8

0.877

 P4, mmHg

78.1 ± 5.9

81.2 ± 5.0

0.282

 Gmax, mmHg/mmHg

1.66 ± 0.24

1.78 ± 0.30

0.779

HR control

   

 P1, beats/min

68.8 ± 9.6

60.7 ± 7.1

0.271

 P2, mmHg−1

0.106 ± 0.008

0.116 ± 0.008

0.324

 P3, mmHg

148.1 ± 2.8

144.9 ± 3.4

0.367

 P4, beats/min

395.0 ± 17.4

388.5 ± 11.2

0.504

 Gmax, beats·min−1·mmHg−1

1.82 ± 0.25

1.72 ± 0.15

0.642

Neural arc

   

 P1, %

44.7 ± 6.3

44.7 ± 9.6

0.998

 P2, mmHg−1

0.145 ± 0.027

0.167 ± 0.031

0.667

 P3, mmHg

138.1 ± 6.7

139.2 ± 3.9

0.810

 P4, %

57.3 ± 6.4

49.1 ± 6.7

0.090

 Gmax, %/mmHg

1.51 ± 0.19

1.85 ± 0.43

0.351

Peripheral arc

   

 b0, mmHg

5.0 ± 9.3

8.3 ± 16.7

0.820

 b1, mmHg/%

1.320 ± 0.115

1.527 ± 0.223

0.344

Operating point

   

 SNA, %

92.0 ± 2.5

85.2 ± 9.2

0.457

 AP, mmHg

125.7 ± 4.2

130.3 ± 2.4

0.224

  1. P1: response range; P2: slope coefficient; P3: midpoint input pressure; P4: lower asymptote; Gmax: maximum gain; b0: intercept; b1: slope; HR: heart rate; SNA: sympathetic nerve activity; AP: arterial pressure. Data are mean ± SE values (n = 7 rats). P values are derived from paired t-tests