P < 0.05 vs 4 months-old SHR;

0

50

100

150

200

Nitrotyrosyne (%)

250

300

350

 Wistar SHR

400

0,0

0,2

0,4

0,6

TBARS (nmol/mg protein)

0,8

1,0

 SHR Wistar

1,2

Normotensive and Spontaneously Hypertensive Rats: Effect of Ageing 145

Fig. 1. TBARS content in nmol/mg protein, expressed in nmol/mg protein in hearts from SHR and Wistar rats at 4, and 19 months-old . \* P < 0.05 in SHR vs Wistar ; # P < 0.05 vs 4

4m 19m

Fig. 2. Nitrotyrosine content, expressed as percentage with respect to 4-month-old Wistar rats in hearts from SHR and Wistar rats at 4 and 19 months-old. \* P < 0.05 in SHR vs Wistar ;

4m 19m

P < 0.05 vs 4-month-old Wistar rats.

#\*
