Abstract
Rett syndrome is an X-linked dominant disorder frequently caused by the mutations in the methyl-CpG-binding protein 2 gene (MECP2). Its prevalence in the population is 1/15,000–20,000. Patients with Rett syndrome present apparently normal psychomotor developments during the first 6–18 months of life. Subsequently, they show a short period of developmental stagnation followed by a rapid regression in language and motor development. Precocious puberty is characterized by premature breast and pubic hair development, and advanced bone age development at 8 years of age. We present a case of Rett syndrome and precocious puberty in a 6-year-old girl. At the age of 6, the first signs of precocious puberty appeared (Tanner stage 3). Laboratory measurements were detected as follows: luteinizing hormone (LH), 0.2 mIU/mL; follicle-stimulating hormone (FSH), 1.1 mIU/mL; estradiol, 36 pg/mL; bone age, 9 years. The response to luteinizing hormone releasing hormone (gonadotropin-releasing hormone stimulation test) was characteristic for true precocious puberty (LH, 32 mIU/mL; FSH, 26 mIU/mL). This is the first reported case of precocious puberty related to Rett syndrome.
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©2013 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Masthead
- Masthead
- Review article
- Tamoxifen therapy for the management of pubertal gynecomastia: a systematic review
- Images in pediatric endocrinology
- Solitary median maxillary central incisor, a clinical predictor of hypoplastic anterior pituitary, ectopic neurohypophysis and growth hormone deficiency
- A rare case of granuloma annulare in a 6-year-old child with type 1 diabetes
- Original articles
- The arginine stimulation test: timing of peak is not a helpful parameter in the diagnosis of growth hormone deficiency
- The relationship between adiposity and stature in prepubertal children with celiac disease
- Influence of micronutrient status and socioeconomic gradient on growth indices of 2–18-year-old Indian girls
- Phosphotyrosine phosphatases in GH-stimulated skin fibroblasts from children with idiopathic short stature
- The relation between salivary cortisol and the metabolic syndrome score in girls
- Association of vitamin D concentrations with adiposity indices among preadolescent children in Korea
- Association of serum resistin levels with metabolic syndrome and early atherosclerosis in obese Chinese children
- Characteristics of infants at risk of hypoglycaemia secondary to being ‘infant of a diabetic mother’
- Parental dyadic coping in families of children and adolescents with type 1 diabetes
- Pigmentary hypertrichosis and non-autoimmune insulin-dependent diabetes mellitus (PHID) syndrome is associated with severe chronic inflammation and cardiomyopathy, and represents a new monogenic autoinflammatory syndrome
- Effect of insulin therapy on IGF-1 level in children with new-onset type 1 diabetes mellitus: a comparison between DKA and non-DKA
- Mutation analysis of the SRD5A2, AR and SF-1 genes in 52 Chinese boys with hypospadias
- Sexual development in prepubertal obese boys: a 4-year longitudinal study
- Genetic diagnosis of one family with incomplete clinical data
- Patient reports
- Complete androgen insensitivity syndrome and discordant Müllerian remnants: two cases with novel mutation in the androgen receptor
- Psychosexual outcomes in three siblings with partial androgen insensitivity syndrome: impact of nature versus nurture
- Ambiguous genitalia in a 48, XXYY newborn: a casual relationship or a coincidence?
- Gonadal function of beta-thalassemics following stem cell transplantation conditioned with myeloablative and reduced intensity regimens
- Significant testicular enlargement in a 6.5-year-old boy with monorchism and testicular microlithiasis
- Report of the first case of precocious puberty in Rett syndrome
- Type II vitamin D-dependent rickets with diabetic ketoacidosis
- Pituitary gigantism presenting with depressive mood disorder and diabetic ketoacidosis in an Asian adolescent
- A rare association between Rathke’s cyst and hypophysitis in a patient with delayed sex development and growth failure
- Diabetes mellitus with Laron syndrome: case report
- Wegener granulomatosis as an uncommon cause of panhypopituitarism in childhood
- Rare cases of autoimmune hypothyroidism in young children
- Cushing syndrome related to leukemic infiltration of the central nervous system: a case report and a possible role of LIF
- Early presentation of bilateral gonadoblastomas in a Denys-Drash syndrome patient: a cautionary tale for prophylactic gonadectomy
- Identification of a novel homozygous mutation (S144I) in a Malay patient with maple syrup urine disease
- Virilization in two pre-pubertal children exposed to topical androgen
- A family with Camurati-Engelman disease. The role of the missense p.R218C mutation in TGFB1 in bones and endocrine glands
- Short communications
- Plasma ceramides are elevated in female children and adolescents with type 2 diabetes
- Assessment of contractility and myocardial function in small and appropriate for gestational age premature neonates using the stress-velocity relationship and tissue Doppler imaging immediately after birth
- Letter to the Editors
- Homeostasis model assessment of insulin resistance may not be reliable to evaluate insulin sensitivity in young obese children
- Type 1 diabetes in women with endometriosis: what is the risk of occurrence?
- How should we manage vitamin D-deficient adolescents?
- Should neonatal hyperparathyroidism associated with mucolipidosis II/III be treated pharmacologically?a