Collection of Gastrointestinal Tissue Samples for the Characterization and ex Vivo Functional Assessment of Chemoreceptors

Diabetes Clinical Trial

— ISTAR-T  

Official title:

Collection of Gastrointestinal Tissue Samples for the Characterization and ex Vivo Functional Assessment of Chemoreceptors

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02859116
• Other study ID #: TRIMD FH 794609
• Status: Completed
• Start date: July 21, 2016
• Est. completion date: January 21, 2022

Study information

• Verified date: August 2022
• Source: AdventHealth Translational Research Institute
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The purpose of this study is to help scientists understand how the gut senses ingested nutrients and what kind of processes take place for their absorption in order to establish the association with diabetes and other metabolic diseases Scientists need human specimens to study.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 8
• Est. completion date: January 21, 2022
• Est. primary completion date: September 12, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Men and women age 18 years and older who are having elective gastrointestinal surgery

2. Able to provide written, informed consent

Exclusion Criteria:

1. Unable to provide written, informed consent

2. Use of antibiotics for more than 5 consecutive days in the three months prior to the study

Related Conditions & MeSH terms

• Diabetes

Intervention

Procedure:
• Collection of digestive tissues
The surgeon will resect a sample (approximately 1-5 cm x 1-5 cm) of healthy tissue from the distal margins of the segment and at least 4 cm from the diseased area. The specimen for research will be obtained from the tissue that would ordinarily be removed during surgery.The tissue collected for our research purposes will be only remnant tissue which is discarded by the surgeon during the surgical intervention and has no diagnostic clinical value.

Locations

Country	Name	City	State
United States	Translational Research Institute for Metabolism and Diabetes	Orlando	Florida

Sponsors (1)

Lead Sponsor	Collaborator
AdventHealth Translational Research Institute

Country where clinical trial is conducted

United States, 

References & Publications (18)

Adler E, Hoon MA, Mueller KL, Chandrashekar J, Ryba NJ, Zuker CS. A novel family of mammalian taste receptors. Cell. 2000 Mar 17;100(6):693-702. — View Citation

Bachmanov AA, Beauchamp GK. Taste receptor genes. Annu Rev Nutr. 2007;27:389-414. Review. — View Citation

Chandra R, Liddle RA. Cholecystokinin. Curr Opin Endocrinol Diabetes Obes. 2007 Feb;14(1):63-7. Review. — View Citation

Chandrashekar J, Hoon MA, Ryba NJ, Zuker CS. The receptors and cells for mammalian taste. Nature. 2006 Nov 16;444(7117):288-94. Review. — View Citation

Chandrashekar J, Mueller KL, Hoon MA, Adler E, Feng L, Guo W, Zuker CS, Ryba NJ. T2Rs function as bitter taste receptors. Cell. 2000 Mar 17;100(6):703-11. — View Citation

Chao CY, Huang CJ. Bitter gourd (Momordica charantia) extract activates peroxisome proliferator-activated receptors and upregulates the expression of the acyl CoA oxidase gene in H4IIEC3 hepatoma cells. J Biomed Sci. 2003 Nov-Dec;10(6 Pt 2):782-91. — View Citation

Deshpande DA, Wang WC, McIlmoyle EL, Robinett KS, Schillinger RM, An SS, Sham JS, Liggett SB. Bitter taste receptors on airway smooth muscle bronchodilate by localized calcium signaling and reverse obstruction. Nat Med. 2010 Nov;16(11):1299-304. doi: 10.1038/nm.2237. Epub 2010 Oct 24. — View Citation

Drewnowski A, Gomez-Carneros C. Bitter taste, phytonutrients, and the consumer: a review. Am J Clin Nutr. 2000 Dec;72(6):1424-35. Review. — View Citation

Jang HJ, Kokrashvili Z, Theodorakis MJ, Carlson OD, Kim BJ, Zhou J, Kim HH, Xu X, Chan SL, Juhaszova M, Bernier M, Mosinger B, Margolskee RF, Egan JM. Gut-expressed gustducin and taste receptors regulate secretion of glucagon-like peptide-1. Proc Natl Acad Sci U S A. 2007 Sep 18;104(38):15069-74. Epub 2007 Aug 27. — View Citation

Jeon TI, Zhu B, Larson JL, Osborne TF. SREBP-2 regulates gut peptide secretion through intestinal bitter taste receptor signaling in mice. J Clin Invest. 2008 Nov;118(11):3693-700. doi: 10.1172/JCI36461. Epub 2008 Oct 9. — View Citation

Kim KS, Egan JM, Jang HJ. Denatonium induces secretion of glucagon-like peptide-1 through activation of bitter taste receptor pathways. Diabetologia. 2014 Oct;57(10):2117-25. doi: 10.1007/s00125-014-3326-5. Epub 2014 Jul 13. Erratum in: Diabetologia. 2014 Nov;57(11):2428. — View Citation

Kinnamon SC. Taste receptor signalling - from tongues to lungs. Acta Physiol (Oxf). 2012 Feb;204(2):158-68. doi: 10.1111/j.1748-1716.2011.02308.x. Epub 2011 May 7. Review. — View Citation

Kyriazis GA, Smith KR, Tyrberg B, Hussain T, Pratley RE. Sweet taste receptors regulate basal insulin secretion and contribute to compensatory insulin hypersecretion during the development of diabetes in male mice. Endocrinology. 2014 Jun;155(6):2112-21. doi: 10.1210/en.2013-2015. Epub 2014 Apr 8. — View Citation

Kyriazis GA, Soundarapandian MM, Tyrberg B. Sweet taste receptor signaling in beta cells mediates fructose-induced potentiation of glucose-stimulated insulin secretion. Proc Natl Acad Sci U S A. 2012 Feb 21;109(8):E524-32. doi: 10.1073/pnas.1115183109. Epub 2012 Feb 6. — View Citation

Margolskee RF, Dyer J, Kokrashvili Z, Salmon KS, Ilegems E, Daly K, Maillet EL, Ninomiya Y, Mosinger B, Shirazi-Beechey SP. T1R3 and gustducin in gut sense sugars to regulate expression of Na+-glucose cotransporter 1. Proc Natl Acad Sci U S A. 2007 Sep 18;104(38):15075-80. Epub 2007 Aug 27. — View Citation

Nakagawa Y, Nagasawa M, Yamada S, Hara A, Mogami H, Nikolaev VO, Lohse MJ, Shigemura N, Ninomiya Y, Kojima I. Sweet taste receptor expressed in pancreatic beta-cells activates the calcium and cyclic AMP signaling systems and stimulates insulin secretion. PLoS One. 2009;4(4):e5106. doi: 10.1371/journal.pone.0005106. Epub 2009 Apr 8. — View Citation

Steinert RE, Gerspach AC, Gutmann H, Asarian L, Drewe J, Beglinger C. The functional involvement of gut-expressed sweet taste receptors in glucose-stimulated secretion of glucagon-like peptide-1 (GLP-1) and peptide YY (PYY). Clin Nutr. 2011 Aug;30(4):524-32. doi: 10.1016/j.clnu.2011.01.007. Epub 2011 Feb 15. — View Citation

Wu SV, Rozengurt N, Yang M, Young SH, Sinnett-Smith J, Rozengurt E. Expression of bitter taste receptors of the T2R family in the gastrointestinal tract and enteroendocrine STC-1 cells. Proc Natl Acad Sci U S A. 2002 Feb 19;99(4):2392-7. — View Citation

* Note: There are 18 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Tissue collection	During surgery, a tissue specimen that would normally be discarded, will be obtained and used to identify the localization and amount of different proteins that regulate nutrient absorption.	Day of surgery

External Links

•   Translational Research Institute for Metabolism and Diabetes