ArticleTranslational andrology and urology2021
Hypogonadotropic hypogonadism associated with another small supernumerary marker chromosome (sSMC) derived from chromosome 22, a case report.
Article in Translational andrology and urology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 4 citations in OpenAlex.
- Mate-pair genome sequencing reveals structural variants for idiopathic male infertility.Human genetics · 2023Article
- Supernumerary derivative 22 chromosome resulting from novel constitutional non-Robertsonian translocation: t(20;22)-Case Report.Molecular cytogenetics · 2022Article
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6 authors at 1 institution in 1 country.
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Abstract
The idiopathic hypogonadotropic hypogonadism (IHH) is portrayed as missing or fragmented pubescence, cryptorchidism, small penis, and infertility. Clinically it is characterized by the low level of sex steroids and gonadotropins, normal radiographic findings of the hypothalamic-pituitary areas, and normal baseline and reserve testing of the rest of the hypothalamic-pituitary axes. Delay puberty and infertility result from an abnormal pattern of episodic GnRH secretion. Mutation in a wide range of genes can clarify ~40% of the reasons for IHH, with the majority remaining hereditarily uncharacterized. New and innovative molecular tools enhance our understanding of the molecular controls underlying pubertal development. In this report, we aim to present a 26-year-old male of IHH associated with a small supernumerary marker chromosome (sSMC) that originated from chromosome 22. The G-banding analysis revealed a karyotype of 47,XY,+mar. High-throughput DNA sequencing identified an 8.54 Mb duplication of 22q11.1-q11.23 encompassing all the region of 22q11 duplication syndrome. Pedigree analysis showed that his mother has carried a balanced reciprocal translocation between Chromosomes 22 and X[t(X;22)]. To the best of our knowledge, this is the second confirmed case of IHH with an sSMC deriving from chromosome 22. Based on our study, the duplicated chromosome fragment 22q11.1-q11.23 might be the reason for the phenotype of our case. Meanwhile, High-throughput DNA sequencing combined with cytogenetic analysis can provide a more accurate clinical diagnosis for patients carrying sSMCs.
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