Epigenetic and genetic diagnosis of Silver-Russell syndrome
Thomas Eggermann1, Sabrina Spengler, Magdalena Gogiel
1Institute of Human Genetics, University Hospital Aachen, Pauwelsstr. 30, D-52074 Aachen, Germany. teggermann@ukaachen.de
Abstract:
Silver-Russell syndrome (SRS) is a congenital imprinting disorder characterized by intrauterine and postnatal growth restriction and further characteristic features. SRS is genetically heterogenous: 7-10% of patients carry a maternal uniparental disomy of chromosome 7; >38% show a hypomethylation in imprinting control region 1 in 11p15; and a further class of mutations are copy number variations affecting different chromosomes, but mainly 11p15 and 7. The diagnostic work-up should thus aim to detect these three molecular subtypes. Numerous techniques are currently applied in genetic SRS testing, but none of them covers all known (epi)mutations, and they should therefore be used synergistically. However, future next-generation sequencing approaches will allow a comprehensive analysis of all types of alterations in SRS.
More Related Videos
09:16Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
07:38Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane
Published on: March 30, 2015
Related Concept Videos
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Incomplete Dominance
Genetic Screens
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Pleiotropy
Karyotyping
Human Genetics
The complex relationship between genetics and psychology is observable through common biological components such...
