Objective Obsessive–compulsive disorder (OCD) is a chronic, prevalent, and highly
impairing psychiatric illness. Although the pathophysiology of OCD remains unknown …

Obsessive-compulsive disorder (OCD) is as serious devastating anxiety disorder. Selective
serotonin reuptake inhibitors (SSRIs) are largely used for the treatment of this mental …

Obsessive-compulsive disorder (OCD) is a disabling mental condition that poses recurring
bothersome intrusive thoughts, obsessions, and compulsions. Considering the positive …

Neuronal NOS (nNOS) accounts for most of the NO production in the nervous system that
modulates synaptic transmission and neuroplasticity. Although previous studies have …

Background Inflammation and oxidative stress are recognized as important contributors to
Parkinson's disease pathogenesis. As such, genetic variability in these pathways could have …

Previous clinical and pre-clinical studies suggest the involvement of ventromedial
orbitofrontal cortex (vmOFC) and glutamatergic neurotransmission in obsessive-compulsive …

Background The most common psychiatric complications due to dopaminergic treatment in
Parkinson's disease are visual hallucinations and impulse control disorders. Their …

The biological mechanisms underlying obsessive–compulsive disorder (OCD) are not
sufficiently elucidated. Chronic inflammation and oxidative stress were shown to increase …

Background This study aimed to evaluate whether VNTR variants in the Endothelial Nitric
Oxide Synthase (eNOS) and the XRCC4 gene play any role in nicotine dependence (ND) …

The neurotransmitter serotonin has been critically implicated in the pathogenesis of several
mental disorders. The serotonin transporter (5-HTT) is a key regulator of serotonergic …