title: XLMR genes: update 1992.
abstract: Up to now, we have identified 77 X-linked conditions in which mental retardation is the primary or a major component manifestation. These conditions were subdivided into 2 categories, designated respectively "X-linked mental retardation syndromes" and "Non-specific X-linked mental retardation". Forty genes have been regionally mapped onto the X chromosome. However, in several instances the data were derived from a single family and most lod scores were less than 3.0.
authors.affiliation: Istituto di Genetica Umana, Facoltà di Medicina A. Gemelli, U.C.S.C., Roma, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Neri
authors.forename: P
authors.initials: P
authors.lastname: Chiurazzi
authors.forename: F
authors.initials: F
authors.lastname: Arena
authors.forename: H A
authors.initials: HA
authors.lastname: Lubs
authors.forename: I A
authors.initials: IA
authors.lastname: Glass
mesh_terms: D002874:Chromosome Mapping; D008040:Genetic Linkage; D006801:Humans; D008607:Intellectual Disability / Q000145:classification / Q000235:genetics*; D008297:Male; D010641:Phenotype; D013577:Syndrome; D009626:Terminology as Topic; D014960:X Chromosome