The investigators will be looking at MAO-A density before and after seven weeks of treatment with an antidepressant and dietary supplement. MAO-A is an enzyme that breaks down brain chemicals that regulate mood. MAO-A density is elevated in patients with major depressive episodes (MDE) secondary to major depressive disorder (MDD). Many remain treatment resistant with common antidepressant treatments and we think it may be due to poor targeting of brain pathologies. We want to test if adding a dietary supplement may normalize MAO-A.
All subjects are getting the combined treatment of a selective serotonin reuptake inhibitor and the dietary supplement. There are two possible selective serotonin reuptake inhibitor treatments but the dietary supplement remains the same. No subjects are receiving the selective serotonin reuptake inhibitor alone and no subjects are receiving the dietary supplement alone. The dietary supplement is called n-acetylcysteine.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
10
selective serotonin reuptake inhibitor
selective serotonin reuptake inhibitor
natural health product
Continuation of depression medication treatment already taken prior to study enrollment except for drugs with affinity for MAO-A or potentially influencing MAO-A levels, including phenelzine, tranylcypromine, moclobemide, cytomel and lithium
Research Imaging Centre, Centre for Addiction and Mental Health
Toronto, Ontario, Canada
MAO-A distribution volume with positron emission tomography
Treatment take 1 week for titration and 6 weeks at full dose=7weeks average
Time frame: before and after treatment, 7 weeks on average between measures
Hamilton Depression Rating Scale Score
Treatment takes 1 week for titration and 6 weeks at full dose=7 weeks average
Time frame: before and after treatment, 7 weeks on average between measures
Magnetic Resonance Spectroscopy (n-acetylaspartate and glutathione levels)
Treatment takes 1 week for titration and 6 weeks at full dose=7 weeks average
Time frame: before and after treatment, 7 weeks on average between measures
Blood markers of monoamine oxidase-A fragment level and glutathione level
Treatment takes 1 week for titration and 6 weeks at full dose=7 weeks average
Time frame: before and after treatment, 7 weeks on average between measures
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