Objectives: This study was aimed to evaluate the effects of the Breathworks' Mindfulness for Stress 8-week course on depressive and psychiatric symptoms, and on positive and negative affects, compared with active control and wait list. Method: A total of 84 primary care health professionals enrolled in the study, in quasi-experimental research design. The scales Beck Depression Inventory, Self-Reporting Questionnaire, Positive and Negative Affect Schedule, Self-Compassion Scale, and Five Facets of Mindfulness Questionnaire were applied before and after the interventions. Results: Depressive symptoms, psychiatric symptoms, and negative affects had a statistically significant decrease before postintervention evaluations in Mindfulness for Stress group, and the levels of self-compassion and observe and non-reactivity dimensions of mindfulness improved after the intervention. Conclusions: The Mindfulness for Stress program can be considered a feasible group intervention to improve the mental health of healthcare professionals.
Background: To date, no biomarker has been able to predict antidepressant response at an early blockade of norepinephrine or serotonin uptake. The transient nocturnal increase in plasma melatonin levels is upregulated by blocking these uptakes. The aim of this study was to test whether fluoxetine increase in urinary 6-sulfatoxymelatonin (aMT6s) is an indicator of serotonin uptake blockade. Methods: A total of 20 women (35–45 years of age) recruited from the community had a diagnosis of major depressive disorder confirmed by the Structured Clinical Interview for DSM-IV. Depressive symptoms were evaluated by the Beck Depression Inventory (BDI). Participants were instructed to take 20 mg of fluoxetine every morning. Every 4 weeks, the dose could be increased by 20 mg until symptom remission. The concentration of aMT6s was evaluated in overnight urine samples collected 1 day before and 1 day after the first fluoxetine dose. Results: An increase in aMT6s correlated to a decrease in BDI score evaluated on day 45 (ρ = −0.67, p = 0.024) was observed. Conclusions: Nocturnal increase in urinary aMT6s after the first day of medication use links the early mechanism of action of fluoxetine to its clinical output 45 days later. Thus, the relationship between urinary aMT6s excretion 1 day before/1 day after is a biomarker for predicting clinical output earlier, reducing illness burden and health care costs.
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