Genetic testing in children with autism spectrum disorders.
OBJECTIVE
The aim of this study was to investigate karyotype abnormalities, MECP2 mutations, and Fragile X in a clinical population of children with Autism Spectrum Disorders (ASD) using The Clinical Report published by the American Academy of Pediatrics.


METHODS
Ninety-six children with ASD were evaluated for genetic testing and factors associated with this testing.


RESULTS
Abnormalities were found on karyotype in 9.7% and in DNA for fragile X in 1.4%. Karyotype abnormalities include inv(9)(p12q13); inv(9)(p11q13); inv(Y)(p11q11); Robertsonian translocation (13;14)(8q10q10) and (13,14)(q10q10); 9qh+; Yqh+; 15ps+; deletion 13(p11.2).


CONCLUSIONS
Genetic testing should be offered to all families of a child with an ASD, even not all of them would follow this recommendation. Although karyotype and FRAXA assessment will yield almost 10% positive results, a detailed history and physical examination are still the most important aspect of the etiological evaluation for children with ASD. Also, it is important to have geneticists to help in interpreting the information obtained from genetic testing.
Dr Sami Ulus Obstetrics and Pediatrics Training and Research Hospital, Child and Adolescent Psychiatry Clinic, Ankara, Turkey.
Esra
E
Çöp
Turgut Özal School of Medicine, Ankara, Turkey.
Pinar
P
Yurtbaşi
Ankara University School of Medicine, Department of Psychiatry.
Özgür
Ö
Öner
Developmental Medicine Center, Boston Children's Hospital, USA.
Kerim M
KM
Münir
autism; child; genetics