[Pathogenesis, classification, diagnostic criteria for depression]

Area of Science:

• Psychiatry and Mental Health
• Neuroscience
• Psychology

Context:

• Current diagnostic systems like ICD-10 and DSM-IV-TR may be expanding the scope of depression diagnoses.
• Clinical presentations of depressive states are increasingly diverse.
• The underlying pathogenesis of depression remains incompletely understood.

Purpose:

• To review the current understanding of depression's pathogenesis, encompassing biological and psychosocial factors.
• To critically examine the classification and diagnostic criteria outlined in ICD-10 and DSM-IV-TR.
• To highlight discrepancies between clinical symptoms and existing diagnostic frameworks for depression.

Summary:

• This review explores the historical and recent advancements in understanding the biological (neurotransmitter, neuroendocrine models) and psychosocial origins of depression.
• It analyzes the strengths and limitations of the International Classification of Diseases, 10th Revision (ICD-10) and the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision (DSM-IV-TR) for diagnosing depression.
• The review identifies inconsistencies between observed clinical symptoms and current diagnostic criteria, underscoring the need for revised approaches.

Impact:

• Highlights the need for evolving depression classification and diagnostic criteria.
• Emphasizes the importance of continued scientific research to elucidate depression's complex etiology.
• Aims to inform future diagnostic frameworks for more accurate and effective depression management.