The effect of arginine on serum prolactin concentrations was studied in 18<SUP> </SUP>normal subjects and in 7 patients with hyperthyroidism in normal subjects,<SUP> </SUP>arginine infusion produced an increase of serum prolactin at least 6 ng/ml<SUP> </SUP>from the baseline, and the mean peak level (25.2 +/- 3.3 ng/ml, mean +/-<SUP> </SUP>SE) was significantly higher than the basal level (8.6 +/- 5.2 ng/ml, P<SUP> </SUP>less than 0.001). There was no significant difference in the peak levels<SUP> </SUP>between sexes. Unlike prolactin, concomitant serum thyrotropin levels did<SUP> </SUP>not change after the arginine infusion. In hyperthyroid patients, the<SUP> </SUP>increment of serum prolactin after arginine infusion at 30 min (3.9 +/- 1.5<SUP> </SUP>ng/ml) was significantly lower than that of the normal controls which were<SUP> </SUP>matched by age and sex (17.1 +/- 4.4 ng/ml, P less than 0.05). After<SUP> </SUP>treatment when these patients were euthyroid, the increment of prolactin<SUP> </SUP>after arginine infusion at 30 min was significantly increased (16.3 +/- 4.3<SUP> </SUP>ng/ml, P less than 0.05) and had reached the level of control subjects.<SUP> </SUP>These data indicate that the prolactin response to arginine in<SUP> </SUP>hyperthyroidism is diminished. </VARDEF>
quindi state attenti con l arginina che alza la prolattina ormone femminile per eccellenza,che diminuisce la libido
quindi state attenti con l arginina che alza la prolattina ormone femminile per eccellenza,che diminuisce la libido