Why Are Some People with Lower Urinary Tract Symptoms (LUTS) Depressed? New Evidence That Peripheral Inflammation in the Bladder Causes Central Inflammation and Mood Disorders.

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2023-02

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Abstract

Anecdotal evidence has long suggested that patients with lower urinary tract symptoms (LUTS) develop mood disorders, such as depression and anxiety, at a higher rate than the general population and recent prospective studies have confirmed this link. Breakthroughs in our understanding of the diseases underlying LUTS have shown that many have a substantial inflammatory component and great strides have been made recently in our understanding of how this inflammation is triggered. Meanwhile, studies on mood disorders have found that many are associated with central neuroinflammation, most notably in the hippocampus. Excitingly, work on other diseases characterized by peripheral inflammation has shown that they can trigger central neuroinflammation and mood disorders. In this review, we discuss the current evidence tying LUTS to mood disorders, its possible bidirectionally, and inflammation as a common mechanism. We also review modern theories of inflammation and depression. Finally, we discuss exciting new animal studies that directly tie two bladder conditions characterized by extensive bladder inflammation (cyclophosphamide-induced hemorrhagic cystitis and bladder outlet obstruction) to neuroinflammation and depression. We conclude with a discussion of possible mechanisms by which peripheral inflammation is translated into central neuroinflammation with the resulting psychiatric concerns.

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10.3390/ijms24032821

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Hughes, Francis M, Michael R Odom, Anissa Cervantes, Austin J Livingston and J Todd Purves (2023). Why Are Some People with Lower Urinary Tract Symptoms (LUTS) Depressed? New Evidence That Peripheral Inflammation in the Bladder Causes Central Inflammation and Mood Disorders. International journal of molecular sciences, 24(3). p. 2821. 10.3390/ijms24032821 Retrieved from https://hdl.handle.net/10161/27027.

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Scholars@Duke

Hughes

Monty Hughes

Assistant Professor in Urology

 Dr. Hughes received his Ph.D. from the Medical University of South Carolina and was a post doc at both the University of North Carolina at Chapel Hill and NIH. He then joined the faculty of the University of North Carolina at Charlotte where he rose to the rank of Associate Professor (with tenure). Following a brief stint as the director of the biology division of a start-up pharmaceutical company, he joined forces with Dr. Purves at the Medical University of South Carolina to begin this lab focused on benign urinary disorders. Dr. Hughes has been at Duke since 2015. He is currently an Assistant Professor working within the Department of Surgery and Division of Urology. He serves as the Director of the Urinary Dysfunction Laboratory which studies the role of inflammation in disorders such as bladder outlet obstruction and diabetic bladder dysfunction. In association with Dr. J Todd Purves, this lab has been instrumental in demonstrating the central importance of the NLRP3 inflammasome in sensing the biochemical stressors associated with these disorders and translating them into an inflammatory signal. This signal is ultimately responsible for changes in voiding function, denervation and fibrosis.

Michael Odom

Postdoctoral Associate
Purves

J Todd Purves

Professor of Urology

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