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This study is a multicenter, open-label, observational, postmarketing surveillance study of Genentech growth hormone (GH) products in the treatment of girls with Turner syndrome in the United States and Canada.
Observational Model: Cohort, Time Perspective: Prospective
Active, not recruiting
Published on BioPortfolio: 2014-07-23T21:51:49-0400
This study plans to learn more about how the energy system works in girls with Turner syndrome. This is important to know so that the investigators understand how Turner syndrome relates t...
Diabetes is more frequent in women with Turner syndrome. The purpose of this study is to see, in what ways the glucose metabolism is different in this study population. The hypothesis is t...
Several studies have demonstrated that Turner Syndrome patients have elevated liver enzymes readily suppressible by a short course of HRT. We wanted to estimated quantitative liver functio...
In the literature, cases of thrombosis in the venous system have been described in girls and women with Turner syndrome. By screening a group of women with Turner syndrome, the researchers...
This study investigated the effect of growth hormone on the growth of infants and toddlers with Turner syndrome during 2 years of treatment with growth hormone. This was compared with the...
Turner syndrome is a chromosomal disorder usually caused by complete deletion of an X chromosome, with deletion in the short arm of the X chromosome being a rare cause of the condition. Patients with ...
Previous case reports have suggested a possible association of congenital hyperinsulinism with Turner syndrome.
To characterize the psychosocial profiles of adult women diagnosed with Turner syndrome before (early diagnosis) and at or after (late diagnosis) 13 years of age.
Turner Syndrome (TS) is associated with short stature, gonadal failure, and fractures. Spinal trabecular bone score (TBS) is a novel bone imaging modality that has not been evaluated in TS.
Most girls with Turner Syndrome have hypergonadotropic hypogonadism and need hormonal replacement - for induction of puberty and later maintaining secondary sex characteristics, attaining peak bone ma...
A syndrome of defective gonadal development in phenotypic women with a karyotype of sex chromosome monosomy (45,X or 45,XO), associated with the loss of a sex chromosome X or Y. Patients generally are of short stature with undifferentiated (streak) gonads, sexual infantilism (HYPOGONADISM), webbing of the neck, cubitus valgus, elevated GONADOTROPINS and decreased ESTRADIOL level in blood. Studies of Turner Syndrome and its variants have contributed significantly to the understanding of SEX DIFFERENTIATION. NOONAN SYNDROME bears similarity to this disorder; however, it also occurs in males, has normal karyotype, and is inherited as an autosomal dominant.
A multifaceted disorder characterized by short stature, webbed neck, ptosis, skeletal malformations, hypertelorism, hormonal imbalance, CRYPTORCHIDISM, multiple cardiac abnormalities (most commonly including PULMONARY VALVE STENOSIS), and some degree of MENTAL RETARDATION. The phenotype bears similarities to that of TURNER SYNDROME that occurs only in females and has its basis in a 45, X karyotype abnormality. However, Noonan syndrome occurs in both males and females with a normal sex chromosome constitution (46,XX and 46,XY). NS1 is due to mutations at chromosome location 12q24.1, in PTPN11, a gene encoding PROTEIN TYROSINE PHOSPHATASE, NON-RECEPTOR TYPE 11. LEOPARD SYNDROME, a disorder that has clinical features overlapping those of Noonan Syndrome, is also due to mutations in PTPN11. In addition, there is a syndrome called neurofibromatosis-Noonan syndrome. Both the PTPN11 and NF1 gene products are involved in the SIGNAL TRANSDUCTION pathway of Ras (RAS PROTEINS).
A number of syndromes with defective gonadal developments such as streak gonads and dysgenetic testes. The spectrum of gonadal and sexual abnormalities is reflected in their varied sex chromosome (SEX CHROMOSOMES) constitution as shown by the karyotypes of 45,X monosomy (TURNER SYNDROME); 46,XX (GONADAL DYSGENESIS, 46XX); 46,XY (GONADAL DYSGENESIS, 46,XY); and sex chromosome MOSAICISM; (GONADAL DYSGENESIS, MIXED). Their phenotypes range from female, through ambiguous, to male. This concept includes gonadal agenesis.
Condition with a variable constellation of phenotypes due to deletion polymorphisms at chromosome location 22q11. It encompasses several syndromes with overlapping abnormalities including the DIGEORGE SYNDROME, VELOCARDIOFACIAL SYNDROME, and CONOTRUNCAL AMOMALY FACE SYNDROME. In addition, variable developmental problems and schizoid features are also associated with this syndrome. (From BMC Med Genet. 2009 Feb 25;10:16) Not all deletions at 22q11 result in the 22q11deletion syndrome.
Rare congenital disorder with multiple anomalies including: characteristic dysmorphic craniofacial features, musculoskeletal abnormalities, neurocognitive delay, and high prevalence of cancer. Germline mutations in H-Ras protein can cause Costello syndrome. Costello syndrome shows early phenotypic overlap with other disorders that involve MAP KINASE SIGNALING SYSTEM (e.g., NOONAN SYNDROME and cardiofaciocutaneous syndrome).
Endocrine disorders are grouped into two categories: hormone imbalance - when a gland produces too much or too little of an endocrine hormone development of lesions (such as nodules or tumors) in the endocrine system, which may or may not affect...