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Table 1 SHR and WKY plasma testosterone and plasma norepinephrine levels by treatment groupa

From: Alterations in vasomotor systems and mechanics of resistance-sized mesenteric arteries from SHR and WKY male rats following in vivo testosterone manipulation

Treatment Strain CONT CAST CAST + T
Testosterone (ng/ml) SHR 1.88 ± 0.52 0.05 ± 0.60 12.9 ± 0.70
  WKY 1.08 ± 0.52 0.04 ± 0.70 11.0 ± 0.78
Norepinephrine (pg/ml) SHR 970.5 ± 88.4*** 481.5 ± 50.4** 762.2 ± 53.8*
  WKY 569.5 ± 28.1 415.5 ± 97.3 644.9 ± 74.6
  1. aCAST, castrate; CAST + T, castrate plus testosterone; CONT, control; NE, norepinephrine; SHR: spontaneously hypertensive rat; T: testosterone; WKY: Wistar Kyoto. Data are means ± SEM. Plasma T was unaltered between SHR and WKY T-manipulated groups. Plasma NE was significantly higher in SHR CONT males than in WKY CONT males (***P < 0.001). Plasma NE was decreased in SHR CAST compared to CONT (**P < 0.01) and increased compared to CAST + T (*P < 0.05).