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Transient Receptor Potential Vanilloid One (TRPV1) Receptor Expression in Children With Retrosternal Pain (TRPV1)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: May 14, 2008
Last Update Posted: October 22, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Manu Sood, Medical College of Wisconsin
We would like to evaluate the changes in nerve innervation and TRPV1 receptor expression along with microscopic changes associated with heart burn and abdominal pain

Epigastric Pain Retrosternal Pain Esophagitis Gastrointestinal Symptoms

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Capsaicin-sensitive Transient Receptor Potential Vanilloid One (TRPV1) and Tyrosine Kinase (TrkA) Receptor Expression in Children With Retrosternal Pain

Further study details as provided by Manu Sood, Medical College of Wisconsin:

Primary Outcome Measures:
  • To characterize the TRPV1 expression in the esophageal mucosa of children with esophagitis and to correlate the TRPV1 expression with severity of mucosal inflammation and microscopic changes. [ Time Frame: 5 years ]

Biospecimen Retention:   Samples Without DNA
We are collecting a single mucosal biopsy during an endoscopy procedure.

Enrollment: 77
Study Start Date: December 2006
Study Completion Date: October 2015
Primary Completion Date: December 2014 (Final data collection date for primary outcome measure)
Children undergoing an endoscopy for retrosternal chest pain, epigastric pain, regurgitation, heart burn or dyspepsia.
Children undergoing an endoscopy for reasons not stated in the experimental group condition (i.e. celiac disease, rectal bleeding, polyps, weight loss, malabsorption).

Detailed Description:
Approximately 5% of children between 10-17 years of age report symptoms of heart burn, epigastric pain or regurgitation. This study will evaluate the changes in nerve innervation and TRPV1 receptor expression in children having upper endoscopy for evaluation of heart burn and abdominal pain.

Information from the National Library of Medicine

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Ages Eligible for Study:   5 Years to 17 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Children undergoing an endoscopy procedure for gastrointestinal symptoms and chest pain or reasons other than those listed in the exclusion criteria.

Inclusion Criteria:

  • Retrosternal and/or epigastric pain and esophagitis
  • Retrosternal and/or epigastric pain but no macroscopic or microscopic esophagitis
  • Gastrointestinal symptoms such as diarrhea, regurgitation, rumination, vomiting, feeding aversion, non-organic failure to thrive, celiac disease with no macroscopic or microscopic esophageal inflammation
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00677378

United States, Wisconsin
Medical College of Wisconsin
Milwaukee, Wisconsin, United States, 53226
Sponsors and Collaborators
Medical College of Wisconsin
Principal Investigator: Manu Sood, MD Medical College of Wisconsin
  More Information

Nelson SP, Chen EH, Syniar GM, Christoffel KK. Prevalence of symptoms of gastroesophageal reflux during childhood: a pediatric practice-based survey. Pediatric Practice Research Group. Arch Pediatr Adolesc Med. 2000 Feb;154(2):150-4.
El-Serag HB, Bailey NR, Gilger M, Rabeneck L. Endoscopic manifestations of gastroesophageal reflux disease in patients between 18 months and 25 years without neurological deficits. Am J Gastroenterol. 2002 Jul;97(7):1635-9.
Carlsson R, Galmiche JP, Dent J, Lundell L, Frison L. Prognostic factors influencing relapse of oesophagitis during maintenance therapy with antisecretory drugs: a meta-analysis of long-term omeprazole trials. Aliment Pharmacol Ther. 1997 Jun;11(3):473-82.
Sarkar S, Hobson AR, Furlong PL, Woolf CJ, Thompson DG, Aziz Q. Central neural mechanisms mediating human visceral hypersensitivity. Am J Physiol Gastrointest Liver Physiol. 2001 Nov;281(5):G1196-202.
Mehta AJ, De Caestecker JS, Camm AJ, Northfield TC. Sensitization to painful distention and abnormal sensory perception in the esophagus. Gastroenterology. 1995 Feb;108(2):311-9.
Cervero F. Visceral hyperalgesia revisited. Lancet. 2000 Sep 30;356(9236):1127-8.
Faussone-Pellegrini MS, Taddei A, Bizzoco E, Lazzeri M, Vannucchi MG, Bechi P. Distribution of the vanilloid (capsaicin) receptor type 1 in the human stomach. Histochem Cell Biol. 2005 Jul;124(1):61-8. Epub 2005 Jul 22.
Cervero F, Laird JM. Understanding the signaling and transmission of visceral nociceptive events. J Neurobiol. 2004 Oct;61(1):45-54. Review.
Yiangou Y, Facer P, Dyer NH, Chan CL, Knowles C, Williams NS, Anand P. Vanilloid receptor 1 immunoreactivity in inflamed human bowel. Lancet. 2001 Apr 28;357(9265):1338-9.
Chan CL, Facer P, Davis JB, Smith GD, Egerton J, Bountra C, Williams NS, Anand P. Sensory fibres expressing capsaicin receptor TRPV1 in patients with rectal hypersensitivity and faecal urgency. Lancet. 2003 Feb 1;361(9355):385-91.
Lewin GR, Mendell LM. Nerve growth factor and nociception. Trends Neurosci. 1993 Sep;16(9):353-9. Review.
Anand P, Terenghi G, Warner G, Kopelman P, Williams-Chestnut RE, Sinicropi DV. The role of endogenous nerve growth factor in human diabetic neuropathy. Nat Med. 1996 Jun;2(6):703-7.
Micera A, Puxeddu I, Aloe L, Levi-Schaffer F. New insights on the involvement of Nerve Growth Factor in allergic inflammation and fibrosis. Cytokine Growth Factor Rev. 2003 Oct;14(5):369-74. Review.
Anand P, Pandya S, Ladiwala U, Singhal B, Sinicropi DV, Williams-Chestnut RE. Depletion of nerve growth factor in leprosy. Lancet. 1994 Jul 9;344(8915):129-30.
Indo Y. Genetics of congenital insensitivity to pain with anhidrosis (CIPA) or hereditary sensory and autonomic neuropathy type IV. Clinical, biological and molecular aspects of mutations in TRKA(NTRK1) gene encoding the receptor tyrosine kinase for nerve growth factor. Clin Auton Res. 2002 May;12 Suppl 1:I20-32. Review.
March JS, Parker JD, Sullivan K, Stallings P, Conners CK. The Multidimensional Anxiety Scale for Children (MASC): factor structure, reliability, and validity. J Am Acad Child Adolesc Psychiatry. 1997 Apr;36(4):554-65.

Responsible Party: Manu Sood, Chief, Associate Professor, Medical College of Wisconsin
ClinicalTrials.gov Identifier: NCT00677378     History of Changes
Other Study ID Numbers: CHW 06/34
First Submitted: May 9, 2008
First Posted: May 14, 2008
Last Update Posted: October 22, 2015
Last Verified: October 2015

Keywords provided by Manu Sood, Medical College of Wisconsin:
Nerve growth factor
Retrosternal pain
Epigastric pain
Gastrointestinal symptoms

Additional relevant MeSH terms:
Chest Pain
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Dermatologic Agents
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs

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