IL-6 in Exercise-Induced Anorexia

The Role of IL-6 in Exercise-Induced Anorexia in Normal-weight Boys

This study investigates the effect of high intensity exercise, with and without the inflammation inhibitor, ibuprofen, on plasma levels of IL-6 and other selective biomarkers of inflammation and appetite on food intake and subjective ratings of appetite in normal-weight boys.

Study Overview

• Status: Completed
• Conditions: Pediatric Obesity; Appetitive Behavior
• Intervention / Treatment: Other: High Intensity Exercise/Ibuprofen

• Study Type: Interventional
• Enrollment (Actual): 15
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Canada
  • Ontario
    • Toronto, Ontario, Canada, M5S 3E2
      • University of Toronto

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 13 years to 18 years (Child, Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• 13-18 yrs, healthy, male

Exclusion Criteria:

• female, heamatophobia, following a diete, diagnosed with diabetes or other metabolic diseases, scoring ≥11 on an Eating Habit Questionnaire

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Water and Rest
Experimental: Water and High Intensity Exercise	Other: High Intensity Exercise/Ibuprofen; HIEX, with and without the inflammation inhibitor, ibuprofen, on plasma levels of IL-6 and other selective biomarkers of inflammation and appetite on food intake and subjective ratings of appetite in normal-weight boys.
Experimental: Ibuprofen and Rest	Other: High Intensity Exercise/Ibuprofen; HIEX, with and without the inflammation inhibitor, ibuprofen, on plasma levels of IL-6 and other selective biomarkers of inflammation and appetite on food intake and subjective ratings of appetite in normal-weight boys.
Experimental: Ibuprofen and High Intensity Exercise	Other: High Intensity Exercise/Ibuprofen; HIEX, with and without the inflammation inhibitor, ibuprofen, on plasma levels of IL-6 and other selective biomarkers of inflammation and appetite on food intake and subjective ratings of appetite in normal-weight boys.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Food Intake	Participants were provided with ad libitum lunch meal, consisting of rice (Uncle Ben's, Bolton, ON, Canada), beef meatballs (President's Choice, Brampton, ON, Canada) and tomato sauce (Ragu, Mount Prospect, IL, USA) at 100 - 120 min. The meatballs were cut into small and uniform pieces and were mixed homogeneously with the other ingredients in a bowl. One bowl was a 479.5 g portion which represented 827.5 kcal, 30.8 g fat, 104.8 g carbohydrate and 30.2 g protein based on the weight consumed and the compositional information provided by the manufacturers. Two portions we served in 10 min intervals and FI from the pizza meal was calculated based on the weight consumed during the lunch. Participants were instructed to eat until comfortably and stay seated during the duration of the meal.	100-120 min
Visual Analog Scale Appetite Scores	Visual Analog Scales were employed to assess subjective appetite based on the following questionnaires: Determination to Eat, Hunger, Fullness and Prospective Food Consumption.	0-120min
Appetite Biomarkers	Active Ghrelin, Blood Glucose, Insulin, Peptide-YY and Glucagon-like peptide-1 were determined as appetite biomarkers.	0-120min
Inflammatory and Stress Biomarkers	Interleukin-6, Tumor necrosis factor alpha and cortisol were determined as appetite biomarkers.	0-120min

Collaborators and Investigators

• Sponsor: University of Toronto

Publications and helpful links

General Publications

• Anderson GH, Hunschede S, Akilen R, Kubant R. Physiology of Food Intake Control in Children. Adv Nutr. 2016 Jan 15;7(1):232S-240S. doi: 10.3945/an.115.009357. Print 2016 Jan.
• Almada C, Cataldo LR, Smalley SV, Diaz E, Serrano A, Hodgson MI, Santos JL. Plasma levels of interleukin-6 and interleukin-18 after an acute physical exercise: relation with post-exercise energy intake in twins. J Physiol Biochem. 2013 Mar;69(1):85-95. doi: 10.1007/s13105-012-0191-x. Epub 2012 Jul 19.
• Banks WA. Anorectic effects of circulating cytokines: role of the vascular blood-brain barrier. Nutrition. 2001 May;17(5):434-7. doi: 10.1016/s0899-9007(01)00507-x.
• Banks WA, Gertler A, Solomon G, Niv-Spector L, Shpilman M, Yi X, Batrakova E, Vinogradov S, Kabanov AV. Principles of strategic drug delivery to the brain (SDDB): development of anorectic and orexigenic analogs of leptin. Physiol Behav. 2011 Nov 30;105(1):145-9. doi: 10.1016/j.physbeh.2011.05.024. Epub 2011 Jun 6.
• Blundell JE, Gibbons C, Caudwell P, Finlayson G, Hopkins M. Appetite control and energy balance: impact of exercise. Obes Rev. 2015 Feb;16 Suppl 1:67-76. doi: 10.1111/obr.12257.
• Blundell JE, King NA. Exercise, appetite control, and energy balance. Nutrition. 2000 Jul-Aug;16(7-8):519-22. doi: 10.1016/s0899-9007(00)00250-1. No abstract available.

Study record dates

Study Major Dates

• Study Start: March 1, 2016
• Primary Completion (Actual): October 1, 2016
• Study Completion (Actual): October 1, 2016

Study Registration Dates

• First Submitted: September 22, 2017
• First Submitted That Met QC Criteria: September 27, 2017
• First Posted (Actual): September 28, 2017

Study Record Updates

• Last Update Posted (Actual): September 28, 2017
• Last Update Submitted That Met QC Criteria: September 27, 2017
• Last Verified: September 1, 2017

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Signs and Symptoms, Digestive; Overnutrition; Nutrition Disorders; Overweight; Body Weight; Obesity; Anorexia; Pediatric Obesity; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Peripheral Nervous System Agents; Enzyme Inhibitors; Analgesics; Sensory System Agents; Anti-Inflammatory Agents, Non-Steroidal; Analgesics, Non-Narcotic; Anti-Inflammatory Agents; Antirheumatic Agents; Cyclooxygenase Inhibitors; Ibuprofen
• Other Study ID Numbers: REB32277

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: Individual participant data will not be made available to other researchers.Participant's identities will be kept confidential. Records will be kept in a locked filing cabinet in the Fitzgerald building at 150 College Street, room 437. Access will be restricted to those directly involved with the project, such as the investigator and the co-investigators. Following recruitment and attainment of informed consent, participants will be given an ID # which will be used on all forms and data analysis. Informed consent forms will be kept in a locked cabinet in a locked office, contain participant names. Research records will be identified by initials, ID number, test and date. Results identified by date and ID number will only be entered on password-protected personal computers kept in locked laboratories or offices at the University of Toronto. Any electronic data will be held on encrypted computers and USB sticks for the same period of time.