To provide methods for treatment and diagnosis of pervasive developmental disorders in humans.SOLUTION: A method of assessing whether or not a subject is afflicted with a pervasive developmental disorder is provided, the method comprising: (1) determining a level of expression of one or more of markers listed in specific tables in a biological sample obtained from the subject using reagents that transform the markers such that the markers can be detected; (2) comparing the level of expression of the one or more markers in the biological sample obtained from the subject with the level of expression of the one or more markers in a control sample; and (3) assessing whether or not the subject is afflicted with a pervasive developmental disorder, where a modulation in the level of expression of the one or more markers in the biological sample obtained from the subject relative to the level of expression of the one or more markers in the control sample is an indication that the subject is afflicted with a pervasive developmental disorder.SELECTED DRAWING: Figure 10
COMPOSITIONS AND METHODS FOR DIAGNOSIS AND TREATMENT OF PERVASIVE DEVELOPMENTAL DISORDER