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toe walking and autism and adult

Cheryl D Tierney, Vidya Bhushan Gupta, Alma Patricia Del Angel, Marilyn Augustyn
Marcus is a handsome, sweet, 7½-year-old boy with a significant history of delayed development, specifically in speech and language skills, as well as difficulties with social interactions that have led other specialists to be concerned about a diagnosis of an autism spectrum disorder.He has been seen in our primary care practice since birth. He was born full-term after vaginal delivery weighing 6 pounds, 6 ounces. There were no pregnancy or delivery complications noted. Genetic testing revealed normal chromosomes, fragile X, and microarray testing...
April 2012: Journal of Developmental and Behavioral Pediatrics: JDBP
David S Mandell, Maytali M Novak, Cynthia D Zubritsky
OBJECTIVE: Early diagnosis of children with autism spectrum disorders (ASD) is critical but often delayed until school age. Few studies have identified factors that may delay diagnosis. This study attempted to identify these factors among a community sample of children with ASD. METHODS: Survey data were collected in Pennsylvania from 969 caregivers of children who had ASD and were younger than 21 years regarding their service experiences. Linear regression was used to identify clinical and demographic characteristics associated with age of diagnosis...
December 2005: Pediatrics
W D Graf, J Marin-Garcia, H G Gao, S Pizzo, R K Naviaux, D Markusic, B A Barshop, E Courchesne, R H Haas
We report a family with a heterogeneous group of neurologic disorders associated with the mitochondrial DNA G8363A transfer ribonucleic acid (RNA)Lys mutation. The phenotype of one child in the family was consistent with autism. During his second year of life, he lost previously acquired language skills and developed marked hyperactivity with toe-walking, abnormal reciprocal social interaction, stereotyped mannerisms, restricted interests, self-injurious behavior, and seizures. Brain magnetic resonance imaging (MRI) and repeated serum lactate studies were normal...
June 2000: Journal of Child Neurology
C J McDougle, S T Naylor, D J Cohen, G K Aghajanian, G R Heninger, L H Price
BACKGROUND: The primary objective of this study was to investigate the behavioral and biochemical responses to acute tryptophan depletion in drug-free adult patients with autistic disorder. METHODS: Twenty drug-free adults with autistic disorder (16 men and 4 women) (mean [+/- SD] age, 30.5 +/- 8.5 years) underwent short-term tryptophan depletion in a double-blind, placebo-controlled, randomized crossover design. Patients received a 24-hour, low-tryptophan diet followed the next morning by an amino acid drink...
November 1996: Archives of General Psychiatry
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