Adenosine modulates oesophageal sensorimotor function in humans

J. M. Remes-Troche, P. Chahal, R. Mudipalli, Satish Sanku Chander Rao

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background and aims: Adenosine mediates somatic and visceral pain, but its effects on gut visceral nociception are unknown. The aim of the present study was to test the hypothesis that adenosine alters oesophageal sensorimotor function. Methods: In a double-blind, randomised, placebocontrolled study, 14 healthy volunteers (M/F=4/10) received either intravenous adenosine 100 mg/kg/min or placebo infusion. Prior to and during infusion, all subjects underwent stepwise graded oesophageal balloon distensions using impedance planimetry. Sensory responses and biomechanical properties were assessed and compared. Results: Adenosine significantly lowered thresholds for first perception (median (25th-75th), cm H2O; 10 (10-20) vs 30 (20-30), p=0.007), discomfort (40 (30-40) vs 50 (50-60), p=0.011) and pain (50 (40-60) vs 70 (60-70), p=0.007) when compared with placebo. Also, the median threshold pressures required to induce first perception (p=0.017), discomfort (p=0.024) and pain (p=0.026) were lower when compared with baseline. The cross-sectional area of the oesophagus increased (p=0.032), and the circumferential wall tension/strain relationship shifted to the left (the wall became stiffer) (p=0.043) after adenosine, when compared with baseline or placebo. Conclusions: Adenosine can induce visceral hyperalgesia and decrease oesophageal distensibility in humans. These evoked sensorimotor changes are similar to those described in patients with functional oesophageal (noncardiac) chest pain. Thus, adenosine modulates oesophageal sensorimotor function and may play a role in the pathogenesis of functional chest pain.

Original languageEnglish (US)
Pages (from-to)1049-1055
Number of pages7
JournalGut
Volume58
Issue number8
DOIs
StatePublished - Aug 1 2009
Externally publishedYes

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Adenosine
Placebos
Chest Pain
Visceral Pain
Nociceptive Pain
Pain
Nociception
Hyperalgesia
Electric Impedance
Esophagus
Healthy Volunteers
Pressure

ASJC Scopus subject areas

  • Gastroenterology

Cite this

Adenosine modulates oesophageal sensorimotor function in humans. / Remes-Troche, J. M.; Chahal, P.; Mudipalli, R.; Rao, Satish Sanku Chander.

In: Gut, Vol. 58, No. 8, 01.08.2009, p. 1049-1055.

Research output: Contribution to journalArticle

Remes-Troche, JM, Chahal, P, Mudipalli, R & Rao, SSC 2009, 'Adenosine modulates oesophageal sensorimotor function in humans', Gut, vol. 58, no. 8, pp. 1049-1055. https://doi.org/10.1136/gut.2006.116699
Remes-Troche, J. M. ; Chahal, P. ; Mudipalli, R. ; Rao, Satish Sanku Chander. / Adenosine modulates oesophageal sensorimotor function in humans. In: Gut. 2009 ; Vol. 58, No. 8. pp. 1049-1055.
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