Genetics of human gastrointestinal sensation

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Purpose: The objective was to review the genetics of human visceral pain with particular emphasis on pain associated with irritable bowel syndrome. Background: The biomarkers most commonly employed in identifying visceral hypersensitivity are sensation ratings and thresholds or brain imaging during viscus (e.g., rectal) distension. Genetic studies suggest that variation in the control of candidate genes involved in ion channel function, neurotransmitter synthesis, reuptake or receptor functions, and inflammatory disease susceptibility loci may impact variations in prevalence of the symptom phenotype of abdominal pain or IBS, or quantitative traits (intermediate phenotypes) of rectal sensation. The candidate genes include SLC6A4, CNR1, and TNFSF15 reflecting serotonin reuptake, cannabinoid receptors, and inflammatory-barrier functions. However, other than TNFSF15, the other candidate genes are only univariately associated with pain, IBS symptom complex, or quantitative traits of sensation. These data have generated hypotheses and present opportunities for study of mechanisms and treatment of visceral pain in humans, which remains an unmet clinical need in patients with IBS and functional abdominal pain.

Original languageEnglish (US)
Pages (from-to)458-466
Number of pages9
JournalNeurogastroenterology and Motility
Volume25
Issue number6
DOIs
StatePublished - Jun 2013

Fingerprint

Medical Genetics
Visceral Pain
Abdominal Pain
Genes
Phenotype
Pain
Cannabinoid Receptors
Viscera
Irritable Bowel Syndrome
Disease Susceptibility
Ion Channels
Neuroimaging
Neurotransmitter Agents
Serotonin
Hypersensitivity
Biomarkers
Therapeutics

Keywords

  • Abdominal pain
  • Ion channels
  • Irritable bowel syndrome
  • Neurotransmitters

ASJC Scopus subject areas

  • Endocrine and Autonomic Systems
  • Gastroenterology
  • Physiology

Cite this

Genetics of human gastrointestinal sensation. / Camilleri, Michael.

In: Neurogastroenterology and Motility, Vol. 25, No. 6, 06.2013, p. 458-466.

Research output: Contribution to journalArticle

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