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Assessment of candidate high-grade serous ovarian carcinoma predisposition genes through integrated germline and tumour sequencing.
NPJ Genom Med
January 2025
Cancer Genetics Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
High-grade serous ovarian carcinoma (HGSOC) has a significant hereditary component, only half of which is explained. Previously, we performed germline exome sequencing on BRCA1 and BRCA2-negative HGSOC patients, revealing three proposed and 43 novel candidate genes enriched with rare loss-of-function variants. For validation, we undertook case-control analyses using genomic data from disease-free controls.
View Article and Find Full Text PDFBeyond the "Dominant" and "Recessive" Patterns of Inheritance.
Int J Mol Sci
December 2024
Laboratory of Medical Biology-Genetics, Faculty of Medicine, School of Health Sciences, Aristotle University, 54124 Thessaloniki, Greece.
This study aimed to investigate whether genes with different modes of inheritance differ in the presence of promoter-enriched CGI loci. For each autosomal chromosome, the author searched for variations in the total number of diseases' phenotypes with autosomal dominant (AD) and recessive (AR) inheritance for a list of promoter-poor CGI (CGI-) and promoter-enriched CGI (CGI+) genes using the OMIM database. Then, the CGI- and CGI+ genes displaying random allelic or bi-allelic expression were examined.
View Article and Find Full Text PDFCIROZ is dispensable in ancestral vertebrates but essential for left-right patterning in humans.
Am J Hum Genet
December 2024
Laboratory of Human Genetics & Therapeutics, Genome Institute of Singapore (GIS), A(∗)STAR, Singapore, Singapore; Laboratory of Human Genetics & Therapeutics, BESE, KAUST, Thuwal, Saudi Arabia; Department of Physiology, Cardiovascular Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. Electronic address:
Four genes-DAND5, PKD1L1, MMP21, and CIROP-form a genetic module that has specifically evolved in vertebrate species that harbor motile cilia in their left-right organizer (LRO). We find here that CIROZ (previously known as C1orf127) is also specifically expressed in the LRO of mice, frogs, and fish, where it encodes a protein with a signal peptide followed by 3 zona pellucida N domains, consistent with extracellular localization. We report 16 individuals from 10 families with bi-allelic CIROZ inactivation variants, which cause heterotaxy with congenital heart defects.
View Article and Find Full Text PDFBase of Skull & Spinal Canal Narrowing in an Adolescent with Autosomal Recessive Hypophosphatemic Rickets Type 2.
Calcif Tissue Int
January 2025
Department of Paediatric Endocrinology, Alder Hey Children's Hospital, Liverpool, UK.
Autosomal recessive hypophosphatemic rickets type 2 (ARHR2) is an uncommon hereditary form of rickets characterised by chronic renal phosphate loss and impaired bone mineralisation. This results from compound heterozygous or homozygous pathogenic variants in ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1), a key producer of extracellular inorganic pyrophosphate (PPi) and an inhibitor of fibroblast growth factor23 (FGF23). ENPP1 deficiency impacts FGF23 and increases its activity.
View Article and Find Full Text PDFG-quadruplex stabilization provokes DNA breaks in human PKD1, revealing a second hit mechanism for ADPKD.
Nat Commun
January 2025
Department of Biomedical Sciences, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, USA.
The "secondhit" pathway is responsible for biallelic inactivation of many tumor suppressors, where a pathogenic germline allele is joined by somatic mutation of the remaining functional allele. The mechanisms are unresolved, but the human PKD1 tumor suppressor is a good experimental model for identifying the molecular determinants. Inactivation of PKD1 results in autosomal dominant polycystic kidney disease, a very common disorder characterized by the accumulation of fluid-filled cysts and end-stage renal disease.
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