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Explore Willi Syndrome, Prader Willi and more!

Prader–Willi syndrome is a rare genetic disorder in which seven genes (or some subset thereof) on chromosome 15 (q 11–13) are deleted or unexpressed (chromosome 15q partial deletion) on the paternal chromosome. Characteristic of PWS is low muscle tone, short stature, incomplete sexual development, cognitive disabilities, problem behaviours, and a chronic feeling of hunger that can lead to excessive eating and obesity. The incidence of PWS is between 1 in 25000-10000 live births.

‘Food Is a Death Sentence to These Kids’

‘Food Is a Death Sentence to These Kids’ - - By Kim Tingley, Jan 21, 2015. (Photo of Rachelle Ross-Williams, who has Prader-Willi syndrome, with her mother, Rhoda Ross-Williams. Credit Stephanie Sinclair for The New York Times) #praderwillisyndrome #PWS

Prader-Willi syndrome (hypothalamic hypogonadism, learning disabilities; behavioral features in childhood include temper tantrums, high pain threshold, sleep disturbances, and skin picking)

Sequencing studies help pinpoint gene in Prader-Willi Syndrome (via Baylor college of Medicine). Also here (subscription required): and