gonadal dysgenesis/arginina

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[Behavior of the hypothalamo-hypophyseal axis in a patient with asymmetric mixed gonadal dysgenesis (chromosome pattern 45,XO/46,XY) before and after gonad excision after with arginine, GRH and TRH stimulation].

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In a 12 years old patient with asymmetric mixed gonadal dysgenesis (karyotype 45, XO/46,XY) a stimulation test with arginine, gonadotropin-releasing hormone (GRH) and thyreotropin-releasing hormone (TRH) was performed before and after exstirpation of the gonads as well as after application of sex

[Assessment of the somatotropic function of the hypophysis in patients with hypophyseal nanism and gonadal dysgenesis by using the insulin-tolerance and arginine-tolerance tests].

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With the aid of insulin-tolerance and arginine tolerance tests (ITT and ATT, respectively) somatotropic function of the hypophysis was assessed in 18 patients with hypophyseal nanism and in 12--with gonad dysgenesis. A marked delay in development and a premature exhaustion of the STH secretion was

Coincidence of gonadal dysgenesis and hyperprolactinemia.

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It is reported about 4 female patients aged from 3 to 31 years (average age 18 years) with gonadal dysgenesis and hyperprolactinemia. Beside one all these females were not treated with synthetic sexual steroids. In 3 of the 4 patients both hyperprolactinemic and hypergonadotropic serum levels were

Carbohydrate intolerance in gonadal dysgenesis: evidence for insulin resistance and hyperglucagonemia.

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To determine the pathogenesis of carbohydrate intolerance associated with gonadal dysgenesis, plasma glucose, insulin, glucagon, and growth hormone responses to oral glucose and intravenous tolbutamide, arginine and insulin were evaluated in 21 nonobese patients, 7-19 years old. Glucose intolerance

Association of Turner's syndrome and Swyer's syndrome in the same family.

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We report two phenotypically and genetically different diseases in the same family. One patient presented with Turner phenotype as a result of chromosomal mosaicism 45,X/46,X, inv(X)(q21;q24) (30%/70%). Her father's sister showed 46,XY female gonadal dysgenesis (Swyer's syndrome) as a result of a

A novel double nucleotide substitution in the HMG box of the SRY gene associated with Swyer syndrome.

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We describe a novel double nucleotide substitution in the SRY gene of a 46,XY female with gonadal dysgenesis or Swyer syndrome. The SRY sequence was analysed by both the single-strand conformational polymorphism assay and direct DNA sequencing of products from the polymerase chain reaction. A double

Androgen receptor gene mutations in 46,XY females with germ cell tumours.

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We present clinical findings and molecular characterization in two patients previously diagnosed as 46,XY female gonadal dysgenesis with germ cell tumour. Both patients showed a female general phenotype with unambiguously female external genitalia and primary amenorrhoea compatible with complete

Two new novel point mutations localized upstream and downstream of the HMG box region of the SRY gene in three Indian 46,XY females with sex reversal and gonadal tumour formation.

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The Y chromosome-specific gene SRY is one of the key genes involved in human sex determination. The SRY gene encodes a testis-specific transcription factor that plays a key role in sexual differentiation and development in males and is located on the distal region of the short arm of the Y

Denys-Drash syndrome associated WT1 glutamine 369 mutants have altered sequence-preferences and altered responses to epigenetic modifications.

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Mutations in human zinc-finger transcription factor WT1 result in abnormal development of the kidneys and genitalia and an array of pediatric problems including nephropathy, blastoma, gonadal dysgenesis and genital discordance. Several overlapping phenotypes are associated with WT1 mutations,

Short stature and primary ovarian insufficiency possibly due to chromosomal position effect in a balanced X;1 translocation.

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BACKGROUND Primary ovarian insufficiency (POI) is defined as a primary ovarian defect characterized by absent menarche (primary amenorrhea), a decrease in the initial primordial follicle number, high follicle-stimulating hormone (FSH) levels and hypoestrogenism. Although the etiology of a majority

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