A clinical, cytogenetic and familial study of 307 mentally retarded, institutionalized, adult male patients with special interest for fra(X) negative X-linked mental retardation.
1991Clinical genetics
Haspeslagh M, Fryns JP, Holvoet M, Collen G, Dierck G +2 more
Plain English
This study looked at 307 adult men with intellectual disabilities living in an institution. The researchers focused on a specific type of genetic condition called X-linked mental retardation. They found 63 men who showed signs similar to a known condition but did not have the expected genetic markers. Among them, 13 men from 9 families showed patterns that suggest an inherited form of this condition, indicating there may be other types of genetic issues causing similar symptoms.
Who this helps: This helps patients with undiagnosed X-linked intellectual disabilities and their families.