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Nitric oxide levels in disruptive behavioral disorder.

Fatma Varol Tas¹, Taner Guvenir, Gultekin Tas

¹Department of Child and Adolescent Psychiatry, Faculty of Medicine, University of Dokuz Eylul, Izmir, Turkey. fvaroltas@hotmail.com

Neuropsychobiology

|June 10, 2006

Summary

Nitric oxide (NO) levels were lower in children with attention deficit and hyperactivity disorder (ADHD) compared to controls. This suggests nitric oxide may play a role in disruptive behavioral disorders like ADHD.

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Area of Science:

Neuroscience
Psychiatry
Biochemistry

Background:

Nitric oxide (NO) is implicated in various neuropsychiatric disorders.
Clinical investigations into NO's role in disruptive behavioral disorders (DBD) are lacking.

Purpose of the Study:

To investigate the relationship between serum nitric oxide (NO) levels and disruptive behavioral disorders (DBD).
To compare NO levels in patients with attention deficit and hyperactivity disorder (ADHD) and ADHD with oppositional defiant disorder (ODD) against healthy controls.

Main Methods:

Serum NO levels were measured in 45 patients diagnosed with DBD (30 ADHD, 15 ADHD + ODD).
Serum NO levels were also measured in 51 healthy control subjects.
Statistical analysis was performed to compare NO levels between groups.

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Main Results:

Patients with ADHD alone exhibited significantly lower blood NO levels compared to both the ADHD + ODD group and healthy controls.
No significant difference in NO levels was observed between the ADHD + ODD group and the control group.

Conclusions:

The distinct NO levels in different DBD presentations suggest a potential role for NO in the etiology of these disorders.
Further research is warranted to elucidate the specific mechanisms by which NO influences DBD development and presentation.