Consecutive Urinary Gonadotropin and Ovarian Hormone Excretory Patterns during LH-RH Analog Treatment in Female Patients with Central Precocious Puberty
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To study the initial stimulative and subsequent suppressive effects of Luteinizing hormone releasing hormone analog (LHRH-a) therapy on the hypothalamic-pituitary-ovarian axis, serial urinary excretion of gonadotropin and ovarian steroids were investigated in 23 female patients with central precocious puberty. Among them, seven were treated with intranasal administration of buserelin (G1), seven with daily subcutaneous injection of buserelin (G2) and nine with subcutaneous injection of super-long-acting LHRH-a every 28 days (G3). After the initial therapy in G1, the levels of urinary gonadotropin excretion increased greatly with a high level persisting for a longer period. Responding to these increases, the levels of urinary total estrogen excretion increased to an excessively high maximum level. After the initial injection in G3, the levels of urinary gonadotropin and total estrogen excretion were augmented at the same time for a shorter period with a lesser excretion of urinary total estrogen. Ovarian cysts developed after urinary total estrogen attained a maximum and tended to grow depending on the duration and degree of high urinary total estrogen excretion.The size of ovarian cysts was greater in G1 than in G3. During therapy in all groups, the mean urinary gonadotropins were significantly suppressed compared with pretreatment. The mean urinary total estrogen excretory level during treatment in G1 was not significantly suppressed compared with before treatment, but on the other hand, with significant suppression in G3. During therapy, urinary FSH excretion increased within 24 hours of every injection of super-long-acting LHRH-a with a slight rise in LH only in all patients in G3 studied. Studies in many more patients are required because the number of subjects was limited in this study.
- 日本小児内分泌学会の論文
日本小児内分泌学会 | 論文
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