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1 Acta Neurobiologiae Experimentalis

1 2010

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Platelet and intestinal 5-HT2A receptor mRNA in autistic spectrum disorders - results of a pilot study

100%

Kazek B. , Huzarska M. , Grzybowska-Chlebowczyk U. , Kajor M. , Ciupinska-Kajor M. , Wos H. , Marszal E.

2010

tom 70

nr 2

The etiology and pathogenesis of autistic spectrum disorders (ASD) are still unknown. Platelet hyperserotonemia has been detected in 25-60% of autistic children. Higher incidence of gastrointestinal problems in people with autism is observed. The aim was compare the expression of platelet 5-HT2Ar mRNA in autistic and non autistic groups. In a subgroup of patients with gastrointestinal problems an upper gastrointestinal tract endoscopy was performed and additionally the expression of 5-HT2A receptor mRNA in the duodenum was assessed. The examination was conducted in 79 children - 51 with ASD and 28 without autistic traits. Statistically significant differences between the study and control groups were proven in gastrointestinal problems. The analyses reveal a significantly higher level of 5-HT2Ar mRNA in platelets of the study group patients, which could suggest serotonin system dysregulation.