16
Aug
13q34 deletions and the role of genes SOX1 and ARHGEF7
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13q34 deletions – or deletions at the terminal segment of the long arm of chromosome 13 – are very rare. Therefore, symptoms of 13q34 deletions are not well described. This article reports two brothers with 13q34 deletions, whose symptoms include intellectual disability, epilepsy, and genitourinary tract defects. From these cases,... Read More
15
Aug
Chromosome 14q 32, the DICER1 gene and elevated cancer risk
The DICER1 gene is located in the 14q32 region within the long arm of chromosome 14. It encodes for a protein responsible for regulating numerous other genes during development. When DICER1 is lost due to mutation or deletion, this regulation is disrupted, resulting in elevated cancer probability. Because of this,... Read More
12
Jul
Recognizing Williams-Beuren syndrome in diverse populations
Williams-Beuren syndrome (WBS) is a genetic disorder caused by a deletion in 7q11.23 – a region within the long arm of chromosome 7. Symptoms of WBS include intellectual disability, hypersocial behavior (a characteristically friendly personality), facial abnormalities, cardiovascular disease, short stature, connective tissue abnormalities, and endocrine (hormonal) abnormalities. Common facial... Read More
06
Jul
5q14.3 deletions, the ADGRV1 gene and epilepsy
Chromosome 5q14.3 deletions – deletions within a region of the long arm of chromosome 5 – cause intellectual disability, epilepsy, dysmorphisms (abnormal differences in body structure), structural brain abnormalities, and hypotonia (low muscle tone.) Seizure types found in 5q14.3 deletions typically include myoclonic seizures, infantile onset of febrile seizures, and... Read More
20
Jun
Phelan-McDermid Syndrome Patient Powered Research Network
This article discusses Phelan-McDermid Syndrome and the Patient Powered Research Network. Phelan-McDermid Syndrome (PMS) is a rare neurodevelopmental disorder, with only about 1,400 cases reported. It is caused either by a 22q13 deletion – a region within the long arm of chromosome 22 – or a mutation within the SHANK3... Read More
