title: Use of Multiplex Ligation-Dependent Probe Amplification (MLPA) in screening of subtelomeric regions in children with idiopathic mental retardation.
abstract: OBJECTIVE
  To detect subtelomeric copy number variations (deletions and duplications) using Multiplex Ligation-Dependent Probe Amplification (MLPA) technique in children with idiopathic mental retardation.
  
  
  METHODS
  All children presenting to the genetics out-patient department for evaluation of mental retardation or developmental delay over a period of two years, for whom no identifiable cause could be found by clinical evaluation, karyotyping, neuroimaging and other relevant investigations.
  
  
  RESULTS
  In the present study, two cases deletions and one case of duplication were detected amongst 65 cases with idiopathic mental retardation/ global developmental delay. The overall detection rate is 4.6%. The detection rate is higher (13%) in children with facial dysmorphism.
  
  
  CONCLUSIONS
  MLPA for subtelomeric regions is recommended for evaluation of children with idiopathic mental retardation/ global developmental delay were included in the study.
authors.affiliation: Department of Medical Genetic, Sanjay Gandhi Post Graduate Institute of Medical Science, Lucknow, India.
authors.forename: Kausik
authors.initials: K
authors.lastname: Mandal
authors.forename: Vijay R
authors.initials: VR
authors.lastname: Boggula
authors.forename: Minal
authors.initials: M
authors.lastname: Borkar
authors.forename: Suraksha
authors.initials: S
authors.lastname: Agarwal
authors.forename: Shubha R
authors.initials: SR
authors.lastname: Phadke
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D016001:Confidence Intervals; D002658:Developmental Disabilities / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D005500:Follow-Up Studies; D017353:Gene Deletion; D020440:Gene Duplication; D005820:Genetic Testing / Q000379:methods*; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D015994:Incidence; D007194:India; D007223:Infant; D008607:Intellectual Disability / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics*; D008297:Male; D021141:Nucleic Acid Amplification Techniques / Q000379:methods*; D016017:Odds Ratio; D011336:Probability; D011446:Prospective Studies; D017678:Sex Distribution; D016615:Telomere / Q000235:genetics