Table 1 Animal characteristics at 7 and 21 days postdenervation.

From: Angiotensin II type 1a receptor deficiency alleviates muscle atrophy after denervation

 

AT1a+/+-Cont (n = 6)

AT1a+/+-Den, 7 days (n = 7)

AT1a+/+-Den, 21 days (n = 7)

AT1a−/−-Cont (n = 5)

AT1a−/−-Den, 7 days (n = 6)

AT1a−/−-Den, 21 days (n = 6)

Body weight (g) pre-operation

24.6 ± 0.31

24.5 ± 0.42

24.3 ± 0.39

28.0 ± 0.88##

26.7 ± 0.63

25.5 ± 0.97

Body weight (g) pre-tissue harvest

27.8 ± 0.47

25.0 ± 0.42**

26.0 ± 0.46

30.1 ± 1.03#

27.2 ± 0.65**, §

26.5 ± 0.89**

Grip strength (N)

2.49 ± 0.08

2.63 ± 0.07

2.45 ± 0.08

2.75 ± 0.07#

2.79 ± 0.03

2.57 ± 0.09

Grip strength (N)/body weight (kg)

104.39 ± 2.58

110.43 ± 3.24

103.94 ± 3.37

99.48 ± 2.19

103.49 ± 1.87

99.16 ± 3.22

Skeletal muscles (mg)

 Gastrocnemius

144.68 ± 2.25

89.67 ± 1.10**

50.82 ± 0.71**

135.14 ± 2.53#

93.95 ± 3.86**

53.18 ± 2.77**

 Tibialis anterior

52.77 ± 0.57

39.23 ± 0.64**

25.49 ± 0.10**

55.90 ± 1.39

42.12 ± 1.43**

25.16 ± 1.53**

 Soleus

8.53 ± 0.43

6.78 ± 0.17**

5.21 ± 0.13**

8.38 ± 0.41

6.78 ± 0.17**

5.63 ± 0.40**

Skeletal muscles (mg)/body weight (g)

 Gastrocnemius

5.22 ± 0.12

3.60 ± 0.10**

1.96 ± 0.03**

4.50 ± 0.07##

3.45 ± 0.08**

2.00 ± 0.05**

 Tibialis anterior

1.90 ± 0.03

1.57 ± 0.03**

0.98 ± 0.04**

1.87 ± 0.06

1.55 ± 0.03**

0.95 ± 0.03**

 Soleus

0.31 ± 0.02

0.25 ± 0.01**

0.20 ± 0.01**

0.28 ± 0.01

0.25 ± 0.001

0.21 ± 0.01**

  1. Values are means ± SE. **P < 0.01 vs the same group control; #P < 0.05 and ##P < 0.01 vs AT1a+/+-Cont; §P < 0.05 vs AT1a+/+-Den (7 days).