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Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
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Antidepressant drugs are a class of medications primarily used for treating various mood disorders, including major depression, anxiety disorders, and other related conditions. These medicines work by modulating the neurotransmitter balance within the brain, alleviating depressive symptoms. Antidepressants can be broadly categorized into several groups according to their mechanism of action and chemical structure: Selective Serotonin Reuptake Inhibitors (SSRIs), Serotonin-Norepinephrine...
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Network Pharmacology and Validation of the Antidepressant Mechanisms of Qiangzhifang in a Chronic Restraint Stress-induced Depression Rat Model
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Autophagy Modulation by Antidepressants: Mechanisms and Implications.

Yuanzi Zheng1, Yanjun Ma2, Yuhang Pan3

  • 1Department of Psychiatry, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China.

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Antidepressants enhance cellular recycling (autophagy) to combat depression by clearing toxic proteins and reducing inflammation. This review highlights autophagy modulation as a key to personalized depression treatments.

Keywords:
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Area of Science:

  • Neuroscience
  • Cell Biology
  • Pharmacology

Background:

  • Depression involves more than neurotransmitter imbalances; cellular recycling (autophagy) is crucial.
  • Autophagy's role in pathogenesis and treatment of depression is increasingly recognized.
  • Current antidepressants' mechanisms are being re-evaluated through the lens of autophagy.

Purpose of the Study:

  • To review how antidepressants modulate autophagy pathways for therapeutic efficacy.
  • To identify specific autophagy targets for novel depression treatments.
  • To discuss challenges and opportunities in translating autophagy research into clinical practice.

Main Methods:

  • Comprehensive literature review integrating studies on antidepressants and autophagy.
  • Analysis of evidence linking antidepressant action to autophagic flux, neuroinflammation, and mitochondrial function.
  • Identification of key autophagy-related targets (e.g., ULK1/Beclin-1, TFEB).

Main Results:

  • Antidepressants (SSRIs, SNRIs, TCAs) augment autophagic flux, aiding neuroprotection.
  • Modulation of autophagy by antidepressants helps clear toxic aggregates and reduce neuroinflammation.
  • Evidence suggests enhanced mitochondrial function through autophagy contributes to antidepressant effects.

Conclusions:

  • Targeted autophagy modulation offers a promising avenue for developing personalized depression therapies.
  • Understanding cell-type-specific and clinically relevant autophagy biomarkers is essential for precision psychiatry.
  • Individualized treatment strategies based on autophagy profiling could revolutionize depression management.