Cited by 63Gastrointestinal motility and disordersInfant Health and DevelopmentPsychosomatic Disorders and Their Treatments

Long‐term colonic hypersensitivity in adult rats induced by neonatal unpredictable vs predictable shock

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Tyler, K., Moriceau, S., Sullivan, R. M., Greenwood‐van Meerveld, B.·2007·Neurogastroenterology & Motility

Abstract

Our goal was to examine the relationship between early life trauma and the development of visceral hypersensitivity in later life in irritable bowel syndrome (IBS). Rat pups underwent neonatal conditioning: (i) paired odour-shock, where odour is a predictable shock signal, (ii) unpaired odour-shock, where odour is an unpredictable shock signal or (iii) control odour-only with odour presentations and handling without shock. At maturity, colorectal sensitivity was measured as a visceromotor behavioural response. In adulthood, colorectal distension (CRD) induced a pressure-dependent increase in the number of abdominal muscle contractions all three experimental groups. However, compared to animals that had received control odour-only presentations in infancy, there was an attenuated response to CRD in animals previously exposed to neonatal predictable shock pups and an exaggerated response in the animals previously exposed to neonatal unpredictable shock. Adult responses to CRD were altered by infant experience with shock trauma. However, depending on the context of that early life trauma, there are major differences between the long-term effects of that early life trauma on colonic sensitivity compared to controls. These results strengthen the link between early life trauma and adult IBS, and suggest that unpredictable trauma is a critical factor for later life disorders.

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Crossref · 10.1111/j.1365-2982.2007.00955.x

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  1. [56]Salzen EA. Imprinting and environmental learning. In: Aronson LR, Tobach E, Lehrman DS, Rosensblatt J, editors. Development and Evolution of Behavior. W.H. Freeman; San Francisco: 1970. Chapter in book. [Google Scholar]
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Authors
Tyler, K., Moriceau, S., Sullivan, R. M., & Greenwood‐van Meerveld, B.
Affiliations
  • Oklahoma City VA Medical Center (US)
  • University of Oklahoma (US)
Venue
Neurogastroenterology & Motility
Publisher
Wiley
Published
2007-07-18
Volume
19
Issue
9
Pages
761-768
ISSN
  • 1350-1925 (ISSN-L)
  • 1365-2982
OpenAlex
W2021380158
Cited by
63
References
75
Citations by year
2026: 1 · 2024: 1 · 2023: 2 · 2021: 2 · 2020: 1 · 2019: 3 · 2018: 3 · 2017: 2 · 2016: 9 · 2015: 3 · 2014: 5 · 2013: 8 · 2012: 5
FWCI
4.82
Type
journal article
Language
en
Open access
Locations
  • Neurogastroenterology & Motility (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD33402, R01HD033402)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Health Sciences › Health Professions › Pharmacy › Infant Health and Development
  • Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
Keywords
irritable bowel syndrome, early trauma, visceral hypersensitivity, colorectal distension, visceromotor response, abdominal muscle contraction
MeSH terms
Animals, Animals, Newborn, Conditioning, Classical, Fear, Female, Hyperalgesia, Male, Manometry, Odorants, Stress, Psychological, Time Factors, Irritable Bowel Syndrome, Rats

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