Mutational analysis of KISS1 and KISS1R in idiopathic central precocious puberty
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Marina Krstevska-Konstantinova
Abstract
Aim: The genetic background of idiopathic central precocious puberty (ICPP) is not well understood. The genetic activation of pubertal onset is thought to arise from the effect of multiple genes. Familial ICPP has been reported suggesting the existence of monogenic causes of ICPP. Kisspeptin and its receptor are found to be involved in gonadotropin-releasing hormone (GnRH) secretion and puberty onset. Mutations in their genes, KISS1 and KISSR, have been suggested to be causative for ICPP.
Methods: ICPP was defined by pubertal onset before 8 years of age in girls, and a pubertal luteinizing hormone (LH) response to GnRH testing. Twenty-eight girls with ICPP were included in the study [age at diagnosis was 5.72±2.59, with a mean bone age advancement of 1.4 years (–0.1 to 2.8). Height at onset of therapy in SD score was 0.90±1.48 for age]. Luteinizing hormone-releasing hormone test was performed in all subjects, and all of them had a pubertal response (LH 20.35±32.37 mIU/mL; FSH 23.32±15.72 mIU/mL). The coding regions of KISS1 and KISS1R were sequenced.
Results: No rare variants were detected in KISS1 or KISS1R in the 28 subjects with ICPP.
Conclusions: We confirmed that mutations in KISS1 and KISS1R are not a common cause for ICPP.
References
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©2014 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Masthead
- Masthead
- Editorials
- Editorial
- Consensus, guidelines and reviews
- Review article
- Adaptation of glucose metabolism to fasting in young children with infectious diseases: a perspective
- Images in pediatric endocrinology
- Coexistence of testicular microlithiasis with parathyroid adenoma in an obese child
- Original articles
- Remission of hypertension and electrolyte abnormalities following renal transplantation in a patient with apparent mineralocorticoid excess well documented throughout childhood
- Effects of metformin in children and adolescents with Prader-Willi syndrome and early-onset morbid obesity: a pilot study
- Glycemic control in familial vs. sporadic type 1 diabetes patients over 5 years
- Clinical and laboratory features of temporary brittle bone disease
- Age of thelarche and menarche in contemporary US females: a cross-sectional analysis
- Teriparatide (rhPTH) treatment in children with syndromic hypoparathyroidism
- Retinol and retinyl palmitate in fetal mice liver: sexual dimorphism
- Skeletal maturation and predicted adult height in children with premature adrenarche
- Homozygosity for a DTDST mutation in a child with multiple epiphyseal dysplasia
- Body composition in young patients with galactose metabolic disorders: a preliminary report
- Detection of vascular risk markers in children and adolescents with type 1 diabetes
- X-linked recessive nephrogenic diabetes insipidus: a clinico-genetic study
- Factors influencing neonatal thyroid-stimulating hormone concentrations as a measure of population iodine status
- Pediatric idiopathic intracranial hypertension and the underlying endocrine-metabolic dysfunction: a pilot study
- Patient reports
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- A pediatric patient with Cushing syndrome caused by ectopic ACTH syndrome and concomitant pituitary incidentalomas
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- Hypocalcemia in a paediatric case: from the clinical features to diagnosis
- A rare case of osteogenesis imperfecta combined with complete tooth loss
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- Clinical expression of familial Williams-Beuren syndrome in a Turkish family
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- A novel insertion in the FOXL2 gene in a Chilean patient with blepharophimosis ptosis epicanthus inversus syndrome type I
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