Table 1. CX3CR1 deficiency protects the heart from decompendation following TAC.
A | B | |||||
---|---|---|---|---|---|---|
BL6 sham n = 8 | BL6 TAC [21d] n = 7 | CX3CR1GFP/GFP sham n = 6 | CX3CR1GFP/GFP TAC [21d] n = 7 | |||
sBP carotis, mmHg | 102 ± 20 | 167 ± 30 | *** | 115 ± 24 | 167 ± 24 | * |
HR, beats/min | 609 ± 25 | 594 ± 46 | ns | 603 ± 20 | 639 ± 16 | ns |
EF, % | 39 ± 6 | 21 ± 10 | ** | 36 ± 8 | 48 ± 4 | ns; #*** |
CO, μl/min | 13370 ± 1694 | 6054 ± 2326 | **** | 12724 ± 2983 | 11348 ± 1694 | ns; #* |
CI, μl/min/BW | 548 ± 181 | 212 ± 87 | **** | 459 ± 110 | 461 ± 62 | ns; #* |
ESV, μl | 35 ± 5 | 46 ± 11 | ns | 41 ± 7 | 21 ± 5 | **; #*** |
EDV, μl | 53 ± 5 | 51 ± 9 | ns | 57 ± 8 | 34 ± 6 | ***; #** |
dPdtmax, mm Hg/sek | 15377 ± 3328 | 9508 ± 2654 | * | 11024 ± 4783 | 12845 ± 2670 | ns |
Part A indicating C57BL/6 data, Part B CX3CR1GFP/GFP data; values are mean ± SD.
*p < 0.05.
**p < 0.01,
*** P<0.001; transverse aortic constriction (TAC) versus respective sham, ns = not significant versus respective sham.
#p indicates TAC Wt vs. TAC CX3CR1GFP/GFP; sBP carotis = systolic blood pressure in carotid artery; HR = heart rate; EF = ejection fraction; CO = cardiac output; CI = cardiac index; ESV = end-systolic volume; EDV = end-diastolic volume; dPdtmax is the maximal rate of rise of left ventricular pressure [21].