Table 1.

Arteriolar wall tetrahydrobiopterin and l-arginine

WeanlingJuvenile
Total biopterin, fmol/mg169 ± 49137 ± 42
Tetrahydrobiopterin, fmol/mg146 ± 50128 ± 41
l-Arginine, pmol/mg126 ± 3104 ± 6*
  • Values are means ± SE.

  • * P < 0.05 vs. the weanling value.