Abstract
The lower urinary tract (LUT) has two functions: (1) the storage of waste products in the form of urine and (2) the elimination of those wastes through micturition. The LUT operates in a simple “on–off” fashion, either storing urine or releasing it during voiding. While this activity may seem simple, micturition is controlled by a complex set of peripheral neurons that are, in turn, coordinated by cell groups in the spinal cord, brainstem, and brain. When this careful coordination is interrupted, the control of the bladder is lost, resulting in incontinence or retention of urine. The purpose of this chapter is to review how the neural systems coordinating the activity of the lower urinary tract form neural circuits that are responsible for either maintaining continence (the storage reflex) or inducing micturition (the voiding reflex). We will also discuss the brain centers that enable higher organisms to voluntarily choose the time and place for voiding. Finally, we will discuss how defects in the pathways controlling micturition can lead to urinary incontinence and which treatments may normalize LUT function.
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References
Abrams P, Cardozo L, Fall M et al (2002) The standardisation of terminology of lower urinary tract function: report from the Standardisation Sub-committee of the International Continence Society. Neurourol Urodyn 21:167–178
Anderson KD (2004) Targeting recovery: priorities of the spinal cord-injured population. J Neurotrauma 21:1371–1383
Andersson KE (2002) Bladder activation: afferent mechanisms. Urology 59:43–50
Andersson KE, Arner A (2004) Urinary bladder contraction and relaxation: physiology and pathophysiology. Physiol Rev 84:935–986
Andersson PO, Sjogren C, Uvnas B et al (1990) Urinary bladder and urethral responses to pelvic and hypogastric nerve stimulation and their relation to vasoactive intestinal polypeptide in the anaesthetized dog. Acta Physiol Scand 138:409–416
Andrew J, Nathan PW (1964) Lesions on the anterior frontal lobes and disturbances of micturition and defaecation. Brain 87:233–262
Araki I (1994) Inhibitory postsynaptic currents and the effects of GABA on visually identified sacral parasympathetic preganglionic neurons in neonatal rats. J Neurophysiol 72:2903–2910
Athwal BS, Berkley KJ, Hussain I et al (2001) Brain responses to changes in bladder volume and urge to void in healthy men. Brain 124:369–377
Barrington F (1925) The effect of lesions of the hind- and mid-brain on micturition in the cat. Q J Exp Physiol 15:81–102
Birder LA, de Groat WC (1992) The effect of glutamate antagonists on c-fos expression induced in spinal neurons by irritation of the lower urinary tract. Brain Res 580:115–120
Birder LA, de Groat WC (1993) Induction of c-fos expression in spinal neurons by nociceptive and nonnociceptive stimulation of LUT. Am J Physiol 265:R326–R333
Blok BF (2002) Central pathways controlling micturition and urinary continence. Urology 59:13–17
Blok BF, Holstege G (1994) Direct projections from the periaqueductal gray to the pontine micturition center (M-region). An anterograde and retrograde tracing study in the cat. Neurosci Lett 166:93–96
Blok BF, Holstege G (1997) Ultrastructural evidence for a direct pathway from the pontine micturition center to the parasympathetic preganglionic motoneurons of the bladder of the cat. Neurosci Lett 222:195–198
Blok BF, Holstege G (1998) The central nervous system control of micturition in cats and humans. Behav Brain Res 92:119–125
Blok BF, De Weerd H, Holstege G (1995) Ultrastructural evidence for a paucity of projections from the lumbosacral cord to the pontine micturition center or M-region in the cat: a new concept for the organization of the micturition reflex with the periaqueductal gray as central relay. J Comp Neurol 359:300–309
Blok BF, Sturms LM, Holstege G (1997a) A PET study on cortical and subcortical control of pelvic floor musculature in women. J Comp Neurol 389:535–544
Blok BF, de Weerd H, Holstege G (1997b) The pontine micturition center projects to sacral cord GABA immunoreactive neurons in the cat. Neurosci Lett 233:109–112
Blok BF, Willemsen AT, Holstege G (1997c) A PET study on brain control of micturition in humans. Brain 120:111–121
Blok BF, Sturms LM, Holstege G (1998) Brain activation during micturition in women. Brain 121:2033–2042
Brant-Zawadzki M, Fein G, Van Dyke C et al (1985) MR imaging of the aging brain: patchy white-matter lesions and dementia. AJNR Am J Neuroradiol 6:675–682
Bush G, Luu P, Posner MI (2000) Cognitive and emotional influences in anterior cingulate cortex. Trends Cogn Sci 4:215–222
Carmichael ST, Price JL (1995) Limbic connections of the orbital and medial prefrontal cortex in macaque monkeys. J Comp Neurol 363:615–641
Cruz F (2004) Mechanisms involved in new therapies for overactive bladder. Urology 63:65–73
Danuser H, Thor KB (1995) Inhibition of central sympathetic and somatic outflow to the lower urinary tract of the cat by the alpha 1 adrenergic receptor antagonist prazosin. J Urol 153:1308–1312
de Groat WC (1995) Mechanisms underlying the recovery of lower urinary tract function following spinal cord injury. Paraplegia 33:493–505
de Groat WC (1998) Anatomy of the central neural pathways controlling the lower urinary tract. Eur Urol 34(Suppl 1):2–5
de Groat WC (2006) Integrative control of the lower urinary tract: preclinical perspective. Br J Pharmacol 147(Suppl 2):S25–40
de Groat WC, Lalley PM (1972) Reflex firing in the lumbar sympathetic outflow to activation of vesical afferent fibres. J Physiol 226:289–309
de Groat WC, Saum WR (1976) Synaptic transmission in parasympathetic ganglia in the urinary bladder of the cat. J Physiol 256:137–158
de Groat WC, Theobald RJ (1976) Reflex activation of sympathetic pathways to vesical smooth muscle and parasympathetic ganglia by electrical stimulation of vesical afferents. J Physiol 259:223–237
de Groat WC, Yoshimura N (2001) Pharmacology of the lower urinary tract. Annu Rev Pharmacol Toxicol 41:691–721
de Groat WC, Kawatani M, Hisamitsu T et al (1983) The role of neuropeptides in the sacral autonomic reflex pathways of the cat. J Auton Nerv Syst 7:339–350
de Groat WC, Kawatani M, Hisamitsu T et al (1990) Mechanisms underlying the recovery of urinary bladder function following spinal cord injury. J Auton Nerv Syst 30(Suppl):S71–7
de Groat WC, Araki I, Vizzard MA et al (1998) Developmental and injury induced plasticity in the micturition reflex pathway. Behav Brain Res 92:127–140
de Groat WC, Yoshiyama M, Ramage AG et al (1999) Modulation of voiding and storage reflexes by activation of alpha1-adrenoceptors. Eur Urol 36(Suppl 1):68–73
Duffau H, Capelle L (2005) Incontinence after brain glioma surgery: new insights into the cortical control of micturition and continence. Case report. J Neurosurg 102:148–151
Fedirchuk B, Song L, Downie JW et al (1992) Spinal distribution of extracellular field potentials generated by electrical stimulation of pudendal and perineal afferents in the cat. Exp Brain Res 89:517–520
Floyd K, Hick VE, Morrison JF (1976) Mechanosensitive afferent units in the hypogastric nerve of the cat. J Physiol 259:457–471
Floyd K, Hick VE, Morrison JF (1982) The influence of visceral mechanoreceptors on sympathetic efferent discharge in the cat. J Physiol 323:65–75
Fowler CJ (2002) Bladder afferents and their role in the overactive bladder. Urology 59:37–42
Fowler CJ, Griffiths D, de Groat WC (2008) The neural control of micturition. Nat Rev Neurosci 9:453–466
Fraser MO, Chancellor MB (2003) Neural control of the urethra and development of pharmacotherapy for stress urinary incontinence. BJU Int 91:743–748
Funakoshi K, Fukutake T, Nishino H et al (2005) Urinary retention caused by a small cortical infarction. J Neurol Neurosurg Psychiatry 76:457–458
Galeano C, Jubelin B, Germain L et al (1986) Micturitional reflexes in chronic spinalized cats: the underactive detrusor and detrusor-sphincter dyssynergia. Neurourol Urodyn 5:45–63
Giuliano F, Facchinetti P, Bernabe J et al (1997) Evidence of sympathetic fibers in the male rat pelvic nerve by gross anatomy, retrograde labeling and high resolution autoradiographic study. Int J Impot Res 9:179–185
Gjone R (1966) Excitatory and inhibitory bladder responses to stimulation of ‘limbic’, diencephalic and mesencephalic structures in the cat. Acta Physiol Scand 66:91–102
Gjone R, Setekleiv J (1963) Excitatory and inhibitory bladder responses to stimulation of the cerebral cortex in the cat. Acta Physiol Scand 59:337–348
Griffiths D (1998) Clinical studies of cerebral and urinary tract function in elderly people with urinary incontinence. Behav Brain Res 92:151–155
Griffiths DJ (2002) The pontine micturition centres. Scand J Urol Nephrol Suppl 210:21–26
Griffiths D, Tadic SD (2008) Bladder control, urgency, and urge incontinence: evidence from functional brain imaging. Neurourol Urodyn 27:466–474
Griffiths D, Holstege G, Dalm E et al (1990) Control and coordination of bladder and urethral function in the brainstem of the cat. Neurourol Urodyn 9:63–82
Griffiths D, Derbyshire S, Stenger A et al (2005) Brain control of normal and overactive bladder. J Urol 174:1862–1867
Gustafson KJ, Creasey GH, Grill WM (2004) A urethral afferent mediated excitatory bladder reflex exists in humans. Neurosci Lett 360:9–12
Holstege G (1998) The emotional motor system in relation to the supraspinal control of micturition and mating behavior. Behav Brain Res 92:103–109
Holstege G (2005) Micturition and the soul. J Comp Neurol 493:15–20
Holstege G, Mouton LJ (2003) Central nervous system control of micturition. Int Rev Neurobiol 56:123–145
Holstege G, Tan J (1987) Supraspinal control of motoneurons innervating the striated muscles of the pelvic floor including urethral and anal sphincters in the cat. Brain 110(Pt 5):1323–1344
Ishizuka O, Mattiasson A, Andersson KE (1996a) Role of spinal and peripheral alpha 2 adrenoceptors in micturition in normal conscious rats. J Urol 156:1853–1857
Ishizuka O, Persson K, Mattiasson A et al (1996b) Micturition in conscious rats with and without bladder outlet obstruction: role of spinal alpha 1-adrenoceptors. Br J Pharmacol 117:962–966
Kavia RB, Dasgupta R, Fowler CJ (2005) Functional imaging and the central control of the bladder. J Comp Neurol 493:27–32
Keast JR, Kawatani M, De Groat WC (1990) Sympathetic modulation of cholinergic transmission in cat vesical ganglia is mediated by alpha 1- and alpha 2-adrenoceptors. Am J Physiol 258:R44–50
Klop EM, Mouton LJ, Kuipers R et al (2005) Neurons in the lateral sacral cord of the cat project to periaqueductal grey, but not to thalamus. Eur J Neurosci 21:2159–2166
Komiyama A, Kubota A, Hidai H (1998) Urinary retention associated with a unilateral lesion in the dorsolateral tegmentum of the rostral pons. J Neurol Neurosurg Psychiatry 65:953–954
Kruse MN, Noto H, Roppolo JR et al (1990) Pontine control of the urinary bladder and external urethral sphincter in the rat. Brain Res 532:182–190
Kruse MN, Belton AL, de Groat WC (1993) Changes in bladder and external urethral sphincter function after spinal cord injury in the rat. Am J Physiol 264:R1157–63
Kuchel GA, Moscufo N, Guttmann CR et al (2009) Localization of brain white matter hyperintensities and urinary incontinence in community-dwelling older adults. J Gerontol A Biol Sci Med Sci 64:902–909
Kuo DC, Hisamitsu T, de Groat WC (1984) A sympathetic projection from sacral paravertebral ganglia to the pelvic nerve and to postganglionic nerves on the surface of the urinary bladder and large intestine of the cat. J Comp Neurol 226:76–86
Llewellyn-Smith IJ, Dicarlo SE, Collins HL et al (2005) Enkephalin-immunoreactive interneurons extensively innervate sympathetic preganglionic neurons regulating the pelvic viscera. J Comp Neurol 488:278–289
Llewellyn-Smith IJ, Martin CL, Fenwick NM et al (2007) VGLUT1 and VGLUT2 innervation in autonomic regions of intact and transected rat spinal cord. J Comp Neurol 503:741–767
Maggi CA, Giuliani S, Giachetti A et al (1990) The effect of MK-801 on the micturition reflex in anesthetized rats. Eur J Pharmacol 181:105–109
Mallory BS, Roppolo JR, de Groat WC (1991) Pharmacological modulation of the pontine micturition center. Brain Res 546:310–320
Marson L (1997) Identification of central nervous system neurons that innervate the bladder body, bladder base, or external urethral sphincter of female rats: a transneuronal tracing study using pseudorabies virus. J Comp Neurol 389:584–602
Matsumoto G, Hisamitsu T, de Groat WC (1995) Role of glutamate and NMDA receptors in the descending limb of the spinobulbospinal micturition reflex pathway of the rat. Neurosci Lett 183:58–61
Matsumoto S, Hanai T, Yoshioka N et al (2006) Medial prefrontal cortex lesions inhibit reflex micturition in anethetized rats. Neurosci Res 54:66–70
Matsuura S, Kakizaki H, Mitsui T et al (2002) Human brain region response to distention or cold stimulation of the bladder: a positron emission tomography study. J Urol 168:2035–2039
McMahon SB, Morrison JF (1982) Two group of spinal interneurones that respond to stimulation of the abdominal viscera of the cat. J Physiol 322:21–34
McMahon SB, Morrison JF, Spillane K (1982) An electrophysiological study of somatic and visceral convergence in the reflex control of the external sphincters. J Physiol 328:379–387
Miller EK, Cohen JD (2001) An integrative theory of prefrontal cortex function. Annu Rev Neurosci 24:167–202
Musil SY, Olson CR (1988) Organization of cortical and subcortical projections to anterior cingulate cortex in the cat. J Comp Neurol 272:203–218
Nadelhaft I, Vera PL (1991) Neurons labelled after the application of tracer to the distal stump of the transected hypogastric nerve in the rat. J Auton Nerv Syst 36:87–96
Nadelhaft I, Vera PL, Card JP et al (1992) Central nervous system neurons labelled following the injection of pseudorabies virus into the rat urinary bladder. Neurosci Lett 143:271–274
Nakamura T, Yoshimura M, Shinnick-Gallagher P et al (1984) alpha 2 and alpha 1-Adrenoceptors mediate opposing actions on parasympathetic neurons. Brain Res 323:349–353
Noto H, Roppolo JR, de Groat WC et al (1991) Opioid modulation of the micturition reflex at the level of the pontine micturition center. Urol Int 47(Suppl 1):19–22
Nour S, Svarer C, Kristensen JK et al (2000) Cerebral activation during micturition in normal men. Brain 123:781–789
Nyo MM (1969) Innervation of the bladder and urethra. J Anat 105:210
Pantoni L, Garcia JH (1997) Pathogenesis of leukoaraiosis: a review. Stroke 28:652–659
Sakakibara R, Hattori T, Uchiyama T et al (1999) Urinary function in elderly people with and without leukoaraiosis: relation to cognitive and gait function. J Neurol Neurosurg Psychiatry 67:658–660
Schondorf R, Laskey W, Polosa C (1983) Upper thoracic sympathetic neuron responses to input from urinary bladder afferents. Am J Physiol 245:R311–R320
Sengupta JN, Gebhart GF (1994) Mechanosensitive properties of pelvic nerve afferent fibers innervating the urinary bladder of the rat. J Neurophysiol 72:2420–2430
Shefchyk SJ, Buss RR (1998) Urethral pudendal afferent-evoked bladder and sphincter reflexes in decerebrate and acute spinal cats. Neurosci Lett 244:137–140
Shefchyk SJ, Espey MJ, Carr P et al (1998) Evidence for a strychnine-sensitive mechanism and glycine receptors involved in the control of urethral sphincter activity during micturition in the cat. Exp Brain Res 119:297–306
Sie JA, Blok BF, de Weerd H et al (2001) Ultrastructural evidence for direct projections from the pontine micturition center to glycine-immunoreactive neurons in the sacral dorsal gray commissure in the cat. J Comp Neurol 429:631–637
Steers WD, Meythaler JM, Haworth C et al (1992) Effects of acute bolus and chronic continuous intrathecal baclofen on genitourinary dysfunction due to spinal cord pathology. J Urol 148:1849–1855
Sugaya K, de Groat WC (1994) Effects of MK-801 and CNQX, glutamate receptor antagonists, on bladder activity in neonatal rats. Brain Res 640:1–10
Sugaya K, Matsuyama K, Takakusaki K et al (1987) Electrical and chemical stimulations of the pontine micturition center. Neurosci Lett 80:197–201
Tai C, Wang J, Wang X et al (2007) Bladder inhibition or voiding induced by pudendal nerve stimulation in chronic spinal cord injured cats. Neurourol Urodyn 26:570–577
Tai C, Shen B, Wang J et al (2008) Inhibitory and excitatory perigenital-to-bladder spinal reflexes in the cat. Am J Physiol Renal Physiol 294:F591–602
Thor KB, Morgan C, Nadelhaft I et al (1989) Organization of afferent and efferent pathways in the pudendal nerve of the female cat. J Comp Neurol 288:263–279
Vanderhorst VG, Holstege G (1997) Nucleus retroambiguus projections to lumbosacral motoneuronal cell groups in the male cat. J Comp Neurol 382:77–88
Vanderhorst VG, Mouton LJ, Blok BF et al (1996) Distinct cell groups in the lumbosacral cord of the cat project to different areas in the periaqueductal gray. J Comp Neurol 376:361–385
Vaughan CW (1992) Hypogastric nerve section reveals a role for both afferent and efferent fibres in the feline continence process. J Auton Nerv Syst 41:197–207
Weaver FM, Follett K, Stern M et al (2009) Bilateral deep brain stimulation vs best medical therapy for patients with advanced Parkinson disease: a randomized controlled trial. JAMA 301:63–73
Yoo PB, Woock JP, Grill WM (2008) Bladder activation by selective stimulation of pudendal nerve afferents in the cat. Exp Neurol 212:218–225
Yoshimura N (1999) Bladder afferent pathway and spinal cord injury: possible mechanisms inducing hyperreflexia of the urinary bladder. Prog Neurobiol 57:583–606
Yoshimura N, de Groat WC (1997) Neural control of the lower urinary tract. Int J Urol 4:111–125
Yoshimura N, Sasa M, Ohno Y et al (1988) Contraction of urinary bladder by central norepine-phrine originating in the locus coeruleus. J Urol 139:423–427
Yoshimura N, Sasa M, Yoshida O et al (1990a) Mediation of micturition reflex by central norepinephrine from the locus coeruleus in the cat. J Urol 143:840–843
Yoshimura N, Sasa M, Yoshida O et al (1990b) Alpha 1-adrenergic receptor-mediated excitation from the locus coeruleus of the sacral parasympathetic preganglionic neuron. Life Sci 47:789–797
Yoshimura N, Bennett NE, Hayashi Y et al (2006) Bladder overactivity and hyperexcitability of bladder afferent neurons after intrathecal delivery of nerve growth factor in rats. J Neurosci 26:10847–10855
Yoshiyama M, Roppolo JR, de Groat WC (1993a) Effects of MK-801 on the micturition reflex in the rat–possible sites of action. J Pharmacol Exp Ther 265:844–850
Yoshiyama M, Roppolo JR, Thor KB et al (1993b) Effects of LY274614, a competitive NMDA receptor antagonist, on the micturition reflex in the urethane-anaesthetized rat. Br J Pharmacol 110:77–86
Yoshiyama M, Roppolo JR, de Groat WC (1994) Interactions between glutamatergic and monoaminergic systems controlling the micturition reflex in the urethane-anesthetized rat. Brain Res 639:300–308
Yoshiyama M, Roppolo JR, De Groat WC (1995a) Interactions between NMDA and AMPA/kainate receptors in the control of micturition in the rat. Eur J Pharmacol 287:73–78
Yoshiyama M, Roppolo JR, de Groat WC (1995b) Effects of GYKI 52466 and CNQX, AMPA/kainate receptor antagonists, on the micturition reflex in the rat. Brain Res 691:185–194
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Beckel, J.M., Holstege, G. (2011). Neurophysiology of the Lower Urinary Tract. In: Andersson, KE., Michel, M. (eds) Urinary Tract. Handbook of Experimental Pharmacology, vol 2011. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16499-6_8
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