To assess the mechanism of painful muscle cramps (MC) associated with
liver cirrhosis (LC), the plasma taurine concentration was examined in
28 cases with LC, among which there were 15 cases with MC and 13 case
s without MC. The mean plasma taurine level in LC with MC was 56.9 +/-
17.3 nmol/ml, whereas that in LC without MC was 79.3 +/- 16.7 nmol/ml
. In normal controls, the level was 90.1 +/- 12.1 nmol/ml. The plasma
taurine concentration in LC with MC was significantly lower than in LC
without MC or in normal controls. There was no significant difference
between normal controls and LC without MC. Following oral administrat
ion of taurine to nine cases with MC in doses of 3 g/day for 4 weeks,
a 2.2-fold increment of plasma taurine was noted with improvements of
MC. These data indicate that MC and the concentration of plasma taurin
e seem to correlate well and that taurine therapy is justifiable for M
C in patients with LC.