OBJECTIVE: The metaphase of 21 severely mentally retarded patients were studies to
assess the role of satellite association in the etiology of mental retardation. METHODS …

OBJECTIVE: To study the frequency of chromosomal abnormalities in severely mentally
retarded Iraqi patients. Secondly, to determine the types of chromosomal abnormalities that …

Child patients with mental retardation or psychiatric disorders were selected for the
presence of prominent acrocentric chromosome satellites and highest or lowest IQ scores …

The frequency of involvement of acrocentric chromosomes into satellite association has
been extensively studied in recent years. These studies have aimed to show the existence of …

The association of acrocentric chromosomes by their satellites, referred as satellite
associations (SAs), is implicated as a cause for non-disjunction and hence an etiological …

While Alzheimer's disease (AD) is primarily considered to be a neurodegenerative disorder,
there is much evidence supporting the idea that it is also a systematic disease, so the …

The incidence and pattern of satellite association (sa) were studied in short‐term lymphocyte
cultures in a group of 5 mentally retarded patients and in 11 controls. In 4 of the 5 patients a …

Introduction: Chromosomal anomalies that change developmental gene expression are the
most common cause of mental retardation. Roughly about 10% of all mental retardation …

Association patterns of acrocentric chromosomes in 3032 cells from chromosomally normal
parents of regular mongols (nondisjunctional trisomy 21) and normal controls were studied …

Materials and methods The autistic sample was refered to our genetic laboratory for
chromosome analysis because we wanted to know the incidence of fragile sites and other …