Mutational analysis of TAC and TACR3 in idiopathic central precocious puberty.
نویسندگان
چکیده
BACKGROUND The genetic background of idiopathic central precocious puberty (ICPP) is not well understood, and is thought to arise from the effect of multiple genes. Familial ICPP have been reported suggesting the existence of monogenic causes of ICPP. The neurokinin B (NKB) system has recently been implicated in the regulation of the human reproductive axis. In humans, NKB and its receptor are encoded by the TAC3 and TACR3 genes, respectively. Mutations in these genes have been suggested to be causative for ICPP. METHODS ICPP was defined by pubertal onset before 8 yrs of age in girls, and a pubertal LH response to GnRH testing. Twenty eight girls with ICPP were included in the study (age at diagnosis was 5.72±2.59; bone age, 6.12±2.81, height at the start of treatment, 0.90±1.48 SD). LHRH test was performed and was pubertal in all subjects (LH 20.35±32.37 mIU/ml; FSH 23.32±15.72 mIU/ml). The coding regions of TAC and TACR3 were sequenced. RESULTS No rare variants were detected in TAC and TACR3 in the 28 subjects with ICPP. CONCLUSIONS We confirmed that mutations in TAC and TACR3 are not a common cause for ICPP.
منابع مشابه
Mutational analysis of TAC3 and TACR3 genes in patients with idiopathic central pubertal disorders.
OBJECTIVE To investigate the presence of variants in the TAC3 and TACR3 genes, which encode NKB and its receptor (NK3R), respectively, in a large cohort of patients with idiopathic central pubertal disorders. SUBJECTS AND METHODS Two hundred and thirty seven patients were studied: 114 with central precocious puberty (CPP), 73 with normosmic isolated hypogonadotropic hypogonadism (IHH), and 50...
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ورودعنوان ژورنال:
- Prilozi
دوره 35 1 شماره
صفحات -
تاریخ انتشار 2014