Table 1

Biochemical variables in hereditary vascular retinopathy (HVR) patients, relatives, and healthy controls

VariablesControls (n=19)HVR patients (n=12)Relatives (n=9)One way ANOVA
p valueF ratio
Plasma 5-HT (nmol/l)9.8  (2.8)5.6  (1.4) 5.1  (1.1) <0.000120.91
Platelet 5-HT (nmol/109platelets)3.2 (0.6)2.2 (0.8) 2.0 (0.9) 0.000111.84
Plasma tryptophan (μmol/l)51 (8)42 (6) 45 (6)0.00247.11
Tryptophan ratio8.7 (0.9)7.7 (1.1) 7.8 (1.0)0.01384.82
  • Data are presented as mean (SD).

  • Significantly different from control group (p<0.001); Significantly different from control group (p<0.01); Significantly different from control group (p<0.05; Bonferroni test).