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Objective To study the effect of gonadotropin releasing hormone agonist(GnRHa)against car-boplation-induced gonadotoxicity in rats. Methods Forty Wistar rats were divided into four groups which received carboplation, GnRHa + carboplation, GnRHa and normal saline respectively(n=10 for each group). Blood samples were collected from the abdominal aorta and the levels of blood follicle stimulation hormone (FSH) and estradiol (E<2>) were determined. Both ovaries and uterus of each rat were removed to measure the amount and the maturity of follicles. Body mass and morphological and pathological features of the rats were also observed. Results Compared with that in control group, the body mass of ovary and uterus decreased (P<0.05), and a significant reduction was observed in the number of ovarian follicles at each grade (P<0.05). The levels of E2 significantly lowered (P<0.05) and the level of FSH markedly ascended in group carboplation. Compared with that in group carboplation, the amount of primitive follicles significantly increased in group GnRHa + carboplation (P<0.05), and carboplation showed markedly protective effect on the ovarian and uterine morphological construction of rats. Conclusion Gn-Rha, appliying to preventing the rat reproduction damage in advance, has the certain protective function.
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Objective To observe the possible association of serum adiponectin level with testosterone level in patients with isolated hypogonadotropic hypogonadism(IHH).Methods The diagnosis of IHH was made,based on clinical presentations,laboratory examinations of hormones and GnRH stimulation test.Serum adiponeetin and testosterone levels were measured in 23 IHH patients and 15 normal men.Results After matched for weight,blood pressure and waist-to-hip ratio,serum testosterone level in IHH group was significantly lower than that in control group [(0.23?0.18 vs 4.20?1.90)?g/L,P
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Objective To analyse the relative factors of the linear growth velocity(GV)in girls with central precocious puberty(CPP)during gonadotropin-releasing hormone analog(GnRHa)therapy,and to investigate the factors affecting the height gain during two-year GnRHa treatment.Methods In 86 girls aged (8.04?1.28)years with CPP treated with GnRHa for more than 2 years,the data including target height,age of onset,pubertal course,chronological age,bone age,linear GV,serum estradiol level and mature index of vaginal smear were analyzed,then the correlations and stepwise regression were performed.Results During GnRHa therapy,GV decreased year by year.The GV in the second year(GV_(2nd))was negatively correlated with the age of onset,bone age(BA_0,BA_2)and chronologic age(CA_0,CA_2)at the onset and by the end of the first year of GnRHa therapy(r=-0.37,-0.59,-0.57,-0.51 and-0.52,respectively,all P