Sex/Gender Differences in the Time-Course for the Development of Substance Use Disorder: A Focus on the Telescoping...

Area of Science:

• Neuroscience
• Psychiatry
• Pharmacology

Background:

• The "telescoping effect" suggests women develop substance use disorder (SUD) more rapidly than men.
• This phenomenon is observed across various substances and non-pharmacological addictions.
• Inconsistent findings exist, with some studies showing no difference or faster progression in men.

Purpose of the Study:

• To critically evaluate evidence supporting or refuting the telescoping effect in women.
• To identify specific populations and conditions where the telescoping effect is most relevant.
• To explore biological and neurobiological underpinnings of sex/gender differences in SUD.

Main Methods:

• Review of clinical data on the course of SUD development and treatment seeking in women versus men.
• Analysis of preclinical (animal) studies investigating sex differences in addiction-related behaviors.
• Examination of biological factors (e.g., ovarian hormones) and neurobiological pathways (e.g., dopamine, glutamate).

Main Results:

• Preclinical evidence strongly supports the telescoping effect, with female animals showing quicker development of addiction-like features.
• Clinical data present a mixed picture, with some support for accelerated SUD progression in women, but also contradictory findings.
• Ovarian hormones and alterations in the mesolimbic dopamine and corticomesolimbic glutamatergic pathways are implicated.

Conclusions:

• The telescoping effect, an accelerated course to SUD in women, is supported by preclinical data and some clinical evidence.
• Further research is needed to clarify conditions and populations where this effect is most pronounced.
• Understanding biological and neurobiological mechanisms is crucial for developing targeted interventions for women at risk for SUD.