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22q13 deletion syndrome, known as Phelan–McDermid syndrome (PMS), is a genetic disorder caused by deletions or rearrangements on the q terminal end (long arm) of chromosome 22. Any abnormal genetic variation in the q13 region that presents with significant manifestations ( phenotype ) typical of a terminal deletion may be diagnosed as 22q13 ...
22q13 deletion syndrome (Phelan–McDermid syndrome) [4] is a condition caused by the deletion of the tip of the q arm on chromosome 22. Most individuals with this disorder experience cognitive delays, low muscle tone, and sleeping, eating, and behavioural issues.
Early reports were split on the topic of whether ring chromosome 22 constituted a consistent syndrome or simply a finding in a heterogeneous group of intellectually disabled people. [14] One early case that drew attention to the syndrome was a report of monozygotic twin sisters with a ring 22, one of the first recorded reports of a shared ...
SHANK proteins are scaffolding proteins at glutamatergic synapses crucial for synaptic development. The disruption of SHANK genes is associated with neurocognitive impairments and disorders. The disruptions, either from mutations or deletions, are associated with disorders such as Phelan-McDermid syndrome (PMS), schizophrenia, and ASD. SHANK 3 ...
This page was last edited on 22 July 2006, at 23:58 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Phelan-McDermid syndrome: 22q13 D Phenylketonuria: PAH: recessive 1:12,000 Pipecolic acidemia: AASDHPPT: recessive Pitt–Hopkins syndrome: TCF4 (18) dominant, de novo 1:11,000-41,000 Polycystic kidney disease: PKD1 (16) or PKD2 (4) P Polycystic ovary syndrome (PCOS) Porphyria: 1-100:50,000 Prader–Willi syndrome: 15: paternal imprinting 1: ...
Ehlers–Danlos syndrome; Frontotemporal dementia caused by mutations in progranulin; GLUT1 deficiency (DeVivo syndrome) [7] Haploinsufficiency of A20; Haploinsufficiency of PRR12 [8] [9] Holoprosencephaly caused by haploinsufficiency in the Sonic Hedgehog gene; Holt–Oram syndrome; Marfan syndrome [10] Phelan–McDermid syndrome; Polydactyly ...
Chromosome 22 is one of the 23 pairs of chromosomes in human cells.Humans normally have two copies of chromosome 22 in each cell. Chromosome 22 is the second smallest human chromosome, spanning about 51 million DNA base pairs and representing between 1.5 and 2% of the total DNA in cells.