Case report: Deep sequencing and long-read genome sequencing refine prior genetic analyses in families with apparent gonadal mosaicism in PIK3CD-related activated PI3K delta syndrome [PDF]
Gonadal and gonosomal mosaicism describe phenomena in which a seemingly healthy individual carries a genetic variant in a subset of their gonadal tissue or gonadal and somatic tissue(s), respectively, with risk of transmitting the variant to their ...
Halyn Orellana +31 more
doaj +5 more sources
Gonadal mosaicism in GNAO1 causing neurodevelopmental disorder with involuntary movements; two additional variants [PDF]
Background: GNAO1 encodes an alpha subunit of the heterotrimeric guanine nucleotide-binding proteins (G proteins). Mutations in GNAO1 result in two clinical phenotypes: Early infantile epileptic encephalopathy 17 (EEIE17-OMIM #615473) and ...
Zainab Al Masseri, Moeenaldeen AlSayed
doaj +3 more sources
Two sisters with cardiac‐urogenital syndrome secondary to pathogenic splicing variant in the MYRF gene with unaffected parents: A case of gonadal mosaicism? [PDF]
Background Cardiac‐urogenital syndrome [MIM # 618280] is a newly described very rare syndrome associated with pathogenic variants in the myelin regulatory factor (MYRF) gene that leads to loss of protein function.
Katerina Slaba +8 more
doaj +3 more sources
Skewed X-Chromosome Inactivation and Parental Gonadal Mosaicism Are Implicated in X-Linked Recessive Female Hemophilia Patients [PDF]
Background: Hemophilia A (HA) and B (HB) are X-linked recessive disorders that mainly affect males born from a mother carrier. Females are rarely affected but a number of mechanisms have been suggested in symptomatic females, such as skewed X-chromosome ...
Ming-Ching Shen +5 more
doaj +3 more sources
Somatic/gonadal mosaicism for structural autosomal rearrangements: female predominance among carriers of gonadal mosaicism for unbalanced rearrangements. [PDF]
Mosaicism for chromosomal structural rearrangements (Rea) is rare and the timing and mechanisms of mosaic Rea formation, maintenance, and clinical manifestation are poorly understood.
Kovaleva NV, Cotter PD.
europepmc +5 more sources
Gonadal mosaicism of large terminal de novo duplication and deletion in siblings with variable intellectual disability phenotypes [PDF]
Background Intellectual disability (ID) is a complex condition that can impact multiple domains of development. The genetic contribution to ID’s etiology is significant, with more than 100 implicated genes and loci currently identified.
Muhammad M. Rahman +14 more
doaj +3 more sources
Case Report of Suspected Gonadal Mosaicism in FOXP1-Related Neurodevelopmental Disorder. [PDF]
Heterozygous mutations in the FOXP1 gene (OMIM#605515) are responsible for a well-characterized neurodevelopmental syndrome known as “intellectual developmental disorder with language impairment with or without autistic features” (OMIM#613670) or FOXP1 ...
Zsigmond A +5 more
europepmc +2 more sources
We report a rare case of bilateral HCG-secreting gonadoblastomas (Gb) in a 5.25-year-old girl of 45, X Turner syndrome (TS) with gonadal Y chromosome mosaicism. The clinical data were summarized, and the literatures were reviewed.
Rujiang Zheng +11 more
doaj +2 more sources
Siblings With HNF4A Congenital Hyperinsulinism From Possible Parental Gonadal Mosaicism. [PDF]
Abstract Congenital hyperinsulinism is the most common cause of persistent hypoglycemia in early infancy. Mutations in the gene for heterozygous hepatocyte nuclear transcription factor 4-alpha (HNF4A) account for approximately 5% of cases and are inherited in an autosomal dominant fashion or arise as de novo mutations.
Wolschendorf R, Eimicke T, Swartz J.
europepmc +3 more sources
Gonadal mosaicism and non-invasive prenatal diagnosis for 'reassurance' in sporadic paternal age effect (PAE) disorders. [PDF]
Non-invasive prenatal diagnosis (NIPD) holds great promise to increase the options for women seeking prenatal testing, as it combines the benefits of earlier sampling in pregnancy with absence of procedure-related risk to the fetus.
Wilkie AOM, Goriely A.
europepmc +2 more sources

