Clomipramine and selegiline: do they influence impulse control?

Area of Science:

• Neuroscience
• Animal Behavior
• Pharmacology

Background:

• Anxiety disorders in dogs often lead to impulse control loss and behavioral issues like destructiveness and aggression.
• Current treatments like clomipramine and selegiline for canine separation anxiety show inconsistent therapeutic effects.
• Behavioral therapy aims to reduce undesirable actions associated with anxiety disorders.

Purpose of the Study:

• To evaluate the efficacy of clomipramine and selegiline in regulating impulse control.
• To investigate the effects of these drugs on impulsive behavior using a rat model.
• To compare drug effects across two rat breeding lines with differing anxiety-related behaviors.

Main Methods:

• Utilized a delay of reward procedure in rats, where animals choose between immediate small or delayed large food rewards.
• Administered acute doses of clomipramine (0.3-10.0 mg/kg), selegiline (0.3-3.0 mg/kg), and diazepam (1.0-3.0 mg/kg).
• Assessed the impact of these drugs on impulsive behavior and motor activity in two distinct rat breeding lines.

Main Results:

• Clomipramine and selegiline did not influence impulse control in either rat breeding line.
• Clomipramine decreased motor activity, while selegiline increased it.
• Diazepam increased impulsive behavior and motor activity in one rat line.

Conclusions:

• Single-dose administration of selegiline and clomipramine does not affect impulsive behavior in this rat model.
• The findings question the efficacy of these drugs for impulse control regulation.
• Further research is needed to understand the neurobiological mechanisms underlying impulse control and anxiety.