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15 Possible Causes for Gonadotropin Levels Low to Undetectable

  • Kallmann Syndrome Type 3

    Company Science NGS Panel – Genetic Testing for Generalized Epilepsy with Febrile Seizures Generalized epilepsy with febrile seizures, GEFSP, Generalized epilepsy with febrile seizures plus; GEFSP, GEFS , Familial febrile seizures, FEB Epilepsy (generalized) with febrile seizures is a complex autosomal dominant disorder[…][centogene.com]

  • Kallmann Syndrome Type 4

    The purpose of the study is to examine how Kallmann syndrome (KS) and idiopathic hypogonadotropic hypogonadism (IHH) affect reproductive hormones. These disorders are caused by a defect in Gonadotropin Releasing Hormone (GnRH) secretion. GnRH is a hormone released by a small gland in the brain called the[…][clinicaltrials.gov]

  • Cryptorchidism

    In a Finnish cohort, hormonal malfunction in 3-month-old boys was found to be reflected in low inhibin B production; and in Finnish and Danish cohorts, high gonadotropin levels[karger.com] However, cryptorchid boys have low or even undetectable levels of LH and testosterone surges [ 35 ], atrophic Leydig cells, and abrogated differentiation of gonocytes into[karger.com]

  • Hypogonadotropic Hypogonadism Type 12
  • Kallmann Syndrome Type 2

    Kallmann syndrome type 2 (KS2) is a type of congenital hypogonadotropic hypogonadism with anosmia. It is caused by mutations in the FGFR1 gene and typically manifests in delayed puberty and olfactory impairment. Birth defects such as digital malformations, tooth agenesis, and cleft lip or palate may be observed and[…][symptoma.com]

  • Hypogonadotropic Hypogonadism Type 18

    In these analyses, undetectably low gonadotropin levels were assigned a value of 0.8 IU per liter, the midpoint between zero and the assay level of detection.[nejm.org] Within-group comparisons were performed by paired t-tests, except for comparisons of follicle-stimulating hormone levels, for which the Wilcoxon signed-rank test was used[nejm.org]

  • Hypogonadotropic Hypogonadism Type 8

    In these analyses, undetectably low gonadotropin levels were assigned a value of 0.8 IU per liter, the midpoint between zero and the assay level of detection.[nejm.org] Within-group comparisons were performed by paired t-tests, except for comparisons of follicle-stimulating hormone levels, for which the Wilcoxon signed-rank test was used[nejm.org]

  • Kallmann Syndrome

    FSH is low/undetectable.[doi.org] Men have normal pubertal development although they have azoospermia, whereas women have abnormal pubertal maturation; in these patients high level of LH are found whereas[doi.org] Gonadotropins receptor (LHR and FSHR) mutations Inactivating mutations affecting the gonadotropin receptors contrast with those affecting their ligands in that they are invariably[doi.org]

  • Hypogonadotropic Hypogonadism

    In these analyses, undetectably low gonadotropin levels were assigned a value of 0.8 IU per liter, the midpoint between zero and the assay level of detection.[nejm.org] Within-group comparisons were performed by paired t-tests, except for comparisons of follicle-stimulating hormone levels, for which the Wilcoxon signed-rank test was used[nejm.org]

  • Anorchia

    The very low or undetectable plasma AMH and inhibin B concentrations seem to be a good biological marker of anorchia. [7] In boys with bilateral vanished testes, gonadotropins[journal-ina.com] […] and inhibin B levels are significantly different from that of bilateral cryptorchid boys.[journal-ina.com]

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