Abstract
Purpose of Review
In this review, we summarize the most recent literature on neurobiology of bladder pain in a systematic fashion starting with end organ, peripheral nervous system, the spinal cord, and ending with the brain. Special attention is dedicated to pain processing in patients with spinal cord injury.
Recent Findings
Chronic bladder pain is not an isolated entity and is in fact a result of a complex interaction between the end organ, surrounding structures, and peripheral and central nervous system. The afferent fibers collecting the information from the bladder urothelium and mucosa are a very diverse population and respond not only to stretch but also to noxious and chemical signaling. Neuroinflammation appears to be central to the process of sensitization. Imaging and molecular evidence is emerging noting actual alterations in signaling pathways and neuroanatomy in patients with chronic pelvic pain beyond the end organ.
Summary
Tremendous progress has been made to better understand the complex pathophysiology of bladder pain on a molecular and neuroanatomic level. Ideally, this information can be utilized to better identify specific and individualized intervention targets for patients with chronic bladder pain.
Similar content being viewed by others
References
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
•Yeh T-C, Chen P-C, Su Y-R, Kuo H-C. Effect of botulinum toxin A on bladder pain—molecular evidence and animal studies. Toxins (Basel). 2020;12(2):98. https://doi.org/10.3390/toxins12020098This review outlines the detailed multimodal mechanism of action of intradetrusor Botulinum Toxin.
Berry SH, Elliott MN, Suttorp M, Bogart LM, Stoto MA, Eggers P, et al. Prevalence of symptoms of bladder pain syndrome/interstitial cystitis among adult females in the United States. J Urol. 2011;186(2):540–4. https://doi.org/10.1016/j.juro.2011.03.132.
Suskind AM, Berry SH, Ewing BA, Elliott MN, Suttorp MJ, Clemens JQ. The prevalence and overlap of interstitial cystitis/bladder pain syndrome and chronic prostatitis/chronic pelvic pain syndrome in men: results of the RAND interstitial cystitis epidemiology male study. J Urol. 2013;189(1):141–5. https://doi.org/10.1016/j.juro.2012.08.088.
Hakimi Z, Houbiers J, Pedersini R, Vietri J. The burden of bladder pain in five European countries: a cross-sectional study. Urology. 2017;99:84–91. https://doi.org/10.1016/j.urology.2016.08.038.
••Karamali M, Shafabakhsh R, Ghanbari Z, Eftekhar T, Asemi Z. Molecular pathogenesis of interstitial cystitis/bladder pain syndrome based on gene expression. J Cell Physiol. 2019;234(8):12301–8. https://doi.org/10.1002/jcp.28009A well-organized and succinct review of different factors involved in IC/BPS including central sensitization.
Akiyama Y, Luo Y, Hanno PM, Maeda D, Homma Y. Interstitial cystitis/bladder pain syndrome: the evolving landscape, animal models and future perspectives. Int J Urol. 2020;27(6):491–503. https://doi.org/10.1111/iju.14229.
Ji R-R, Nackley A, Huh Y, Terrando N, Maixner W. Neuroinflammation and central sensitization in chronic and widespread pain. Anesthesiology. 2018;129(2):343–66. https://doi.org/10.1097/ALN.0000000000002130.
Baskin LS, Tanagho EA. Pelvic pain without pelvic organs. J Urol. 1992;147(3 Part 1):683–6. https://doi.org/10.1016/S0022-5347(17)37348-2.
Bettini L, Moore K. Central sensitization in functional chronic pain syndromes: overview and clinical application. Pain Manag Nurs. 2016;17(5):333–8. https://doi.org/10.1016/j.pmn.2016.05.008.
Chai TC, Birder LA. Physiology and pharmacology of the bladder and urethra. In: Wein AJ, Kavoussi LR, Partin AW, Peters CA, editors. Campbell-Walsh Urology. 11th ed. Philadelphia, PA: Elsevier; 2016. p. 1631–85.
••Qiao LY, Tiwari N. Spinal neuron-glia-immune interaction in cross-organ sensitization. Am J Physiol Liver Physiol. 2020;319(6):G748–60. https://doi.org/10.1152/ajpgi.00323.2020This gastroeneterology review highlights cross-organ sensitization between pelvic organs including bowel and bladder.
Burnstock G. Purine-mediated signalling in pain and visceral perception. Trends Pharmacol Sci. 2001;22:182–8. https://doi.org/10.1016/S0165-6147(00)01643-6.
Zagorodnyuk VP, Brookes SJH, Spencer NJ, Gregory S. Mechanotransduction and chemosensitivity of two major classes of bladder afferents with endings in the vicinity to the urothelium. J Physiol. 2009;587:3523–38. https://doi.org/10.1113/jphysiol.2009.172577.
••Dalghi MG, Montalbetti N, Carattino MD, Apodaca G. The urothelium: life in a liquid environment. Physiol Rev. 2020;100(4):1621–705. https://doi.org/10.1152/physrev.00041.2019A comprehensive and current report of urothelial microanatomy, physiology, signaling, and pathology.
Birder LA. More than just a barrier: Urothelium as a drug target for urinary bladder pain. Am J Physiol Ren Physiol. 2005;289:F489–95. https://doi.org/10.1152/ajprenal.00467.2004.
Grundy L, Caldwell A, Brierley SM. Mechanisms underlying overactive bladder and interstitial cystitis/painful bladder syndrome. Front Neurosci. 2018;12. https://doi.org/10.3389/fnins.2018.00931.
Ueda N, Kondo M, Takezawa K, Kiuchi H, Sekii Y, Inagaki Y, et al. Bladder urothelium converts bacterial lipopolysaccharide information into neural signaling via an ATP-mediated pathway to enhance the micturition reflex for rapid defense. Sci Rep. 2020;10(1):21167. https://doi.org/10.1038/s41598-020-78398-9.
Birder LA, Kullmann FA. Role of neurogenic inflammation in local communication in the visceral mucosa. Semin Immunopathol. 2018;40(3):261–79. https://doi.org/10.1007/s00281-018-0674-0.
••Grundy L, Erickson A, Brierley SM. Visceral Pain. Annu Rev Physiol. 2019;81:261–84. https://doi.org/10.1146/annurev-physiol-020518-114525Current overview of the roles of the bowel and bladder in chronic pelvic pain with comprehensive graphics.
Gornet ME, Chandawarkar A, Herati A, Dellon AL. Interstitial cystitis/bladder pain syndrome as referred pain from injured T12/L1 nerves: symptomatic improvement with resection of ilioinguinal and iliohypogastric nerves. Urology. 2021;149:24–9. https://doi.org/10.1016/j.urology.2020.11.034.
Gasperi M, Krieger JN, Forsberg C, Goldberg J, Buchwald D, Afari N. Chronic prostatitis and comorbid non-urological overlapping pain conditions: a co-twin control study. J Psychosom Res. 2017;102:29–33. https://doi.org/10.1016/j.jpsychores.2017.09.005.
Chang KM, Lee MH, Lin HH, Wu SL, Wu HC. Does irritable bowel syndrome increase the risk of interstitial cystitis/bladder pain syndrome? A cohort study of long term follow-up. Int Urogynecol J. 2021;32:1307–12. https://doi.org/10.1007/s00192-021-04711-3.
Zare A, Jahanshahi A, Rahnama’i M-S, Schipper S, van Koeveringe GA. The role of the periaqueductal gray matter in lower urinary tract function. Mol Neurobiol. 2019;56(2):920–34. https://doi.org/10.1007/s12035-018-1131-8.
Sadler KE, Kolber BJ. Urine trouble: alterations in brain function associated with bladder pain. J Urol. 2016;196(1):24–32. https://doi.org/10.1016/j.juro.2015.10.198.
Kutch JJ, Ichesco E, Hampson JP, Labus JS, Farmer MA, Martucci KT, et al. Brain signature and functional impact of centralized pain: a multidisciplinary approach to the study of chronic pelvic pain (MAPP) network study. Pain. 2017;158:1979–91. https://doi.org/10.1097/j.pain.0000000000001001.
Naliboff BD, Stephens AJ, Afari N, Lai H, Krieger JN, Hong B, et al. Widespread psychosocial difficulties in men and women with urologic chronic pelvic pain syndromes: case-control findings from the multidisciplinary approach to the study of chronic pelvic pain research network. Urology. 2015;85:1319–27. https://doi.org/10.1016/j.urology.2015.02.047.
••Gao Y, Zhang R, Chang HH, Rodríguez L V. The role of C-fibers in the development of chronic psychological stress induced enhanced bladder sensations and nociceptive responses: a multidisciplinary approach to the study of urologic chronic pelvic pain syndrome (MAPP) research network study. Neurourol Urodyn. 2018. doi:10.1002/nau.23374. Recent MAPP study examining the interplay between chronic bladder pain and psychological stress.
Khavari R, Boone T. Imaging: CNS changes in interstitial cystitis/painful bladder syndrome. Nat Rev Urol. 2015;12(7):365–6. https://doi.org/10.1038/nrurol.2015.142.
Yang W, Yaggie RE, Schaeffer AJ, Klumpp DJ. AOAH remodels arachidonic acid-containing phospholipid pools in a model of interstitial cystitis pain: a MAPP network study. Streicher JM, ed. PLoS One. 2020;15(9):e0235384. doi:10.1371/journal.pone.0235384
Farmer MA, Huang L, Martucci K, Yang CC, Maravilla KR, Harris RE, et al. Brain white matter abnormalities in female interstitial cystitis/bladder pain syndrome: a MAPP network neuroimaging study. J Urol. 2015;194:118–26. https://doi.org/10.1016/j.juro.2015.02.082.
Kutch JJ, Labus JS, Harris RE, Martucci KT, Farmer MA, Fenske S, et al. Resting-state functional connectivity predicts longitudinal pain symptom change in urologic chronic pelvic pain syndrome: a MAPP network study. Pain. 2017;158:1069–82. https://doi.org/10.1097/j.pain.0000000000000886.
•Moussa M, Papatsoris A, Chakra MA, Fares Y, Dellis A. Lower urinary tract dysfunction in common neurological diseases. Turkish J Urol. 2020;46(Supp. 1):S70–8. https://doi.org/10.5152/tud.2020.20092Overview of how injury to different neurologic components manifests as LUTS.
Ning G-Z, Mu Z-P, Shangguan L, Tang Y, Li CQ, Zhang ZF, et al. Epidemiological features of traumatic spinal cord injury in Chongqing, China. J Spinal Cord Med. 2016;39(4):455–60. https://doi.org/10.1080/10790268.2015.1101982.
Alizadeh A, Dyck SM, Karimi-Abdolrezaee S. Traumatic spinal cord injury: an overview of pathophysiology, models and acute injury mechanisms. Front Neurol. 2019;10:282. https://doi.org/10.3389/fneur.2019.00282.
Corcos J. Practical guide to diagnosis and follow-up of patients with neurogenic bladder dysfunction. In: Corcos J, Ginsberg D, Karsenty G, editors. Textbook of the Neurogenic Bladder: CRC Press; 2015. https://doi.org/10.1201/b18585.
Wyndaele JJ. The management of neurogenic lower urinary tract dysfunction after spinal cord injury. Nat Rev Urol. 2016;13(12):705–14. https://doi.org/10.1038/nrurol.2016.206.
Al Taweel W, Seyam R. Neurogenic bladder in spinal cord injury patients. Res Reports Urol. June 2015;85. https://doi.org/10.2147/RRU.S29644.
Huang Q, Duan W, Sivanesan E, Liu S, Yang F, Chen Z, et al. Spinal cord stimulation for pain treatment after spinal cord injury. Neurosci Bull. 2019;35(3):527–39. https://doi.org/10.1007/s12264-018-0320-9.
Herrity AN, Petruska JC, Stirling DP, Rau KK, Hubscher CH. The effect of spinal cord injury on the neurochemical properties of vagal sensory neurons. Am J Physiol Integr Comp Physiol. 2015;308(12):R1021–33. https://doi.org/10.1152/ajpregu.00445.2014.
Kessler TM, La Framboise D, Trelle S, et al. Sacral neuromodulation for neurogenic lower urinary tract dysfunction: systematic review and meta-analysis. Eur Urol. 2010;58(6):865–74. https://doi.org/10.1016/j.eururo.2010.09.024.
•Hu M, Lai S, Zhang Y, Liu M, Wang J. Sacral neuromodulation for lower urinary tract dysfunction in spinal cord injury: a systematic review and meta-analysis. Urol Int. 2019;103(3):337–43. https://doi.org/10.1159/000501529Report on current status of classic sacral neuromodulation therapy for SCI patients.
•Hoey RF, Medina-Aguiñaga D, Khalifa F, et al. Bladder and bowel responses to lumbosacral epidural stimulation in uninjured and transected anesthetized rats. Sci Rep. 2021;11(1). https://doi.org/10.1038/s41598-021-81822-3Preclinical study outlining a promising new neuromodulation target for bladder dysfunction in patients with and without neurologic injury.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of Interest
The authors declare no competing interests.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This article is part of the Topical Collection on Neurogenic Bladder
Rights and permissions
About this article
Cite this article
Sheetz, T., Clemens, J.Q. & Crescenze, I. Neuroanatomy of Bladder Pain. Curr Bladder Dysfunct Rep 16, 41–45 (2021). https://doi.org/10.1007/s11884-021-00629-0
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11884-021-00629-0