Immunosuppression and Diet: the Role of Inflammation in the Adipose Tissue Remodeling

Immunosuppression and Diet: the Role of Inflammation in the Adipose Tissue Remodeling After Liver Transplantation

The main goal of this project is to evaluate the effect of immunosuppression in the weight loss and in the metabolic status of patients after liver transplantation. It is also the purpose of this project to investigate why patients become overweight and obese after liver transplantation.

Study Overview

• Status: Completed
• Conditions: Liver Transplantation; Obesity
• Intervention / Treatment: Other: Weight loss diet

Detailed Description

Overweight and obese post-liver transplantation patients will receive a diet to promote weight loss during 6 months. The control group (overweight and obese subjects) will be submitted to the same protocol:

The participants will be interviewed at baseline and after 30, 60, 90 and 180 days from baseline. The following measures will be assessed: body composition (fat body% and free fat body%), anthropometric measures (height, weight, body mass index, waist circumference and abdominal circumference), blood pressure, basal metabolic rate, behavioral symptoms and peripheral biomarkers in the serum. Behavioral symptoms will be assessed using the following self-reported questionnaires: Beck Depression Inventory (depression symptoms), Beck Anxiety Inventory (anxiety symptoms), Medical Outcomes Study 36 - Item Short - Form Health Survey (quality of life) and Perceived Stress Scale (stress).

Enrolled participants will receive a restrictive diet calculated based on individual requirements aiming the loss of around 5%-10% of weight/ 6 months of intervention.

• Study Type: Interventional
• Enrollment (Actual): 40
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Brazil
  • MG
    • Belo Horizonte, MG, Brazil
      • Hospital da Clínicas da UFMG

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 60 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• CONTROL GROUP: Women/men aged 18-60 years old; Body mass index 25-40 kg/m2.
• IMMUNOSSUPPRESSED PATIENTS: Women/men aged 18-60 years old; Body mass index 25-40 kg/m2; liver transplantation between 1-3 years from the time of recruitment.

Exclusion Criteria:

• CONTROL GROUP: Pregnant or lactating womenbuse of alcohol or drugs
• Endocrine disease
• Use of hormones which interferes in the weight
• Use of insulin or anti-inflammatory, and antidepressants drugs
• Use of drugs to loss weight
• Immunosuppressed patients
• Subjects in another weight loss program
• Subjects submitted to bariatric surgery
• IMMUNOSSUPPRESSED PATIENTS: Pregnant or lactating women
• Abuse of alcohol or drugs
• Endocrine disease
• Use of hormones which interferes in the weight
• Use of insulin or antidepressants drugs
• Use of drugs to loss weight
• Subjects in another weight loss program
• Subjects submitted to bariatric surgery, re-transplanted patients, hepatic insufficiency.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Control; The volunteers (overweight and obese) will receive nutritional counseling and a weight loss diet.	Other: Weight loss diet; Weight loss diet composed of 30% lipids, 30% proteins and 40% carbohydrates.
Experimental: Immunosuppressed patients; The volunteers (liver transplantation) will receive nutritional counseling and a weight loss diet.	Other: Weight loss diet; Weight loss diet composed of 30% lipids, 30% proteins and 40% carbohydrates.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in weight measurement from baseline until 6 months follow up.	The weight loss will be measured by weighing volunteers	Baseline and 30, 60, 90 and 180 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in body composition from baseline until 6 months follow up.	The effect of the weight loss diet in body composition will be measured by bioimpedance.	Baseline and 30, 60, 90 and 180 days
Change in basal metabolic rate from baseline until 6 months follow up.	Basal metabolic rate will be measured by calorimetry.	Baseline and 30, 60, 90 and 180 days
Change in inflammatory mediators serum levels from baseline until 6 months follow up.	Nutritional effect in the levels of interleukins, such as Interleukin-1, interleukin-6 and interleukin-10, interleukin-17, tumor necrosis factor and protein C reactive.	Baseline and 30, 60, 90 and 180 days
Change in depressive symptoms from baseline until 6 months follow up.	Nutritional effect in depressive symptoms will be measured by the Beck Depression Inventory.	Baseline and 30, 60, 90 and 180 days
Change in anxiety symptoms from baseline until 6 months follow up.	Nutritional effect in anxiety symptoms will be measured by the Beck Anxiety Inventory.	Baseline and 30, 60, 90 and 180 days
Change in quality of life from baseline until 6 months follow up.	Nutritional effect in quality of life will be measured by Medical Outcomes Study 36 - Item Short - Form Health Survey.	Baseline and 30, 60, 90 and 180 days
Change in perceived stress from baseline until 6 months follow up.	Nutritional effect in perceived stress will be measured by the Perceived Stress Scale.	Baseline and 30, 60, 90 and 180 days
Change in quality of diet from baseline until 6 months follow up.	Nutritional effect in quality of diet will be measured by the Healthy Eating Index-10.	Baseline and 30, 60, 90 and 180 days
Changes in serum levels of neurotrophic factors from baseline until 6 months follow up.	Nutritional effect in the serum levels of brain-derived neurotrophic factor, glial-derived neurotrophic factor and neurotrophin-3 and neurotrophin 4/5.	Baseline and 30, 60, 90 and 180 days
Change in metabolic markers serum levels from baseline until 6 months follow up.	Nutritional effect in the levels of triglycerides, cholesterol and glucose	Baseline and 30, 60, 90 and 180 days
Characterization of the immunological response of liver transplanted patients from baseline until 6 months follow up.	Analysis of cytokines in the sera of immunosupressed patients.	Baseline and 30, 60, 90 and 180 days
Characterization of the immunological response of liver transplanted patients from baseline until 6 months follow up..	Analysis of cytokines in cell culture (PBMC) of immunosupressed patients.	Baseline and 30, 60, 90 and 180 days
Characterization of the immunological profile of liver transplanted patients in the baseline.	The cells will be immuno-phenotyped for the ex vivo condition and also submitted to culture in the presence of different stimuli.	Baseline.

Collaborators and Investigators

• Sponsor: Federal University of Minas Gerais
• Collaborators: Conselho Nacional de Desenvolvimento Científico e Tecnológico
• Investigators: Study Chair: Débora Fernandes Rodrigues, Master, UFMG

Publications and helpful links

General Publications

• Richardson RA, Garden OJ, Davidson HI. Reduction in energy expenditure after liver transplantation. Nutrition. 2001 Jul-Aug;17(7-8):585-9. doi: 10.1016/s0899-9007(01)00571-8.
• Terjimanian MN, Harbaugh CM, Hussain A, Olugbade KO Jr, Waits SA, Wang SC, Sonnenday CJ, Englesbe MJ. Abdominal adiposity, body composition and survival after liver transplantation. Clin Transplant. 2016 Mar;30(3):289-94. doi: 10.1111/ctr.12688. Epub 2016 Feb 13.
• Noceti OM, Woillard JB, Boumediene A, Esperon P, Taupin JL, Gerona S, Valverde M, Tourino C, Marquet P. Tacrolimus pharmacodynamics and pharmacogenetics along the calcineurin pathway in human lymphocytes. Clin Chem. 2014 Oct;60(10):1336-45. doi: 10.1373/clinchem.2014.223511. Epub 2014 Aug 20.
• Anastacio LR, Diniz KG, Ribeiro HS, Ferreira LG, Lima AS, Correia MI, Vilela EG. Prospective evaluation of metabolic syndrome and its components among long-term liver recipients. Liver Int. 2014 Aug;34(7):1094-101. doi: 10.1111/liv.12495. Epub 2014 Mar 18.

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2014
• Primary Completion (Actual): October 1, 2017
• Study Completion (Actual): October 1, 2017

Study Registration Dates

• First Submitted: March 27, 2017
• First Submitted That Met QC Criteria: April 6, 2017
• First Posted (Actual): April 7, 2017

Study Record Updates

• Last Update Posted (Actual): June 26, 2018
• Last Update Submitted That Met QC Criteria: June 22, 2018
• Last Verified: June 1, 2018

More Information

Terms related to this study

• Keywords: Liver transplantation; Obesity; immunosuppression; weight loss diet
• Additional Relevant MeSH Terms: Pathologic Processes; Inflammation
• Other Study ID Numbers: 30409114.8.0000.5149

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No