{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T17:54:57Z","timestamp":1792691697879,"version":"4.5.0"},"reference-count":130,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2025,6,13]],"date-time":"2025-06-13T00:00:00Z","timestamp":1749772800000},"content-version":"unspecified","delay-in-days":163,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Acta Neuropsychiatr."],"published-print":{"date-parts":[[2025]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t  <jats:sec id=\"S0924270825100197_as1\">\n\t    <jats:title>Background:<\/jats:title>\n\t    <jats:p>Late-life depression (LLD) arises from a complex interplay among biological, psychological, and social factors. Biologically, three main hypotheses have been proposed to explain the distinct clinical features of LLD. The vascular hypothesis supports vascular-related white matter changes in the development of LLD, while the neurodegenerative hypothesis suggests that LLD might be a prodrome of neurodegenerative diseases. The inflammatory hypothesis, which is the main focus of this review, posits that heightened inflammation underlies LLD directly or indirectly through neurodegenerative and microvascular alterations.<\/jats:p>\n\t  <\/jats:sec>\n\t  <jats:sec id=\"S0924270825100197_as2\">\n\t    <jats:title>Methods:<\/jats:title>\n\t    <jats:p>This is a non-systematic review on the role played by inflammation in the pathophysiology of LLD and the related opportunities to define biomarkers and therapeutic targets. We searched PubMed from January 2010 through March 2025 for relevant English-language studies.<\/jats:p>\n\t  <\/jats:sec>\n\t  <jats:sec id=\"S0924270825100197_as3\">\n\t    <jats:title>Results:<\/jats:title>\n\t    <jats:p>Patients with LLD have elevated circulating levels of inflammatory biomarkers (e.g., C-reactive protein and interleukin-6) as well as evidence of neuroinflammation. Although the exact origin of this inflammatory profile remains unclear, it is thought to be exacerbated by immune cell senescence and the presence of physical comorbidities, including cardiovascular and metabolic diseases. Pharmacological (e.g., selective serotonin receptor inhibitors) and non-pharmacological (e.g., diet, physical interventions) approaches for LLD seem to exert their therapeutic effect, at least in part, through inflammation-related mechanisms.<\/jats:p>\n\t  <\/jats:sec>\n\t  <jats:sec id=\"S0924270825100197_as4\">\n\t    <jats:title>Conclusion:<\/jats:title>\n\t    <jats:p>Recognizing the unique features of LLD compared to depression in other periods of life is an important step toward its proper management. 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