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Clinical Trial Summary

There is a significant association between autonomic dysfunction and symptoms experienced by NAFLD patients mediated by increased systemic inflammation and insulin resistance, resulting in deteriorating quality of life of affected patients; fatigue and other symptoms drive worsening autonomic dysfunction in these patients. We aim to describe the severity of autonomic dysfunction (AD) in non-alcoholic fatty liver disease (NAFLD) and the relationship of AD to symptoms experienced by NAFLD patients (such as fatigue, chronic pain, depression, sleep disturbance, and cognitive dysfunction), and to the quality of life of NAFLD patients. We also hope to examine the impact of systemic inflammation and insulin resistance as mediators of manifestations of AD and symptoms experienced by NAFLD patients.


Clinical Trial Description

Aim 1. Describe the severity of AD in NAFLD and the relationship of AD to symptoms experienced by NAFLD patients (fatigue, chronic pain, depression, sleep disturbance, and cognitive dysfunction) (Aim 1a) and to the quality of life of NAFLD patients (Aim 1b). Primary screening for inclusion/exclusion criteria will be done at the VCUHS clinic. Subjects meeting inclusion criteria will be approached about study participation during their routine NAFLD clinic visit. Those who agree to participate in the study will return for a study visit at the CCTR Clinical Research Services. All subjects will be asked to fast and avoid caffeine for 12 hours prior to study visit. Demographic and clinical data will be collected by study coordinators. After a focused exam, conducted by a hepatologist to determine health status of the participants, the PI and a research nurse will interview participants to assess their symptoms and AD (Aim 1). Blood (20 ml) samples will be collected via venipuncture for serum and plasma inflammatory markers and IR (Aim 2).

Aim 2. Examine the impact of systemic inflammation (SI) and insulin resistance (IR) as mediators of manifestations of AD and symptoms experienced by NAFLD patients. Increased presence of adipocytes may produce high, chronic levels of cytokines such as IL-6 and TNF-α resulting in higher levels of APRPs which contribute to overall inflammation as well as cognitive decline and fatigue. Secondly, elevated levels of IL-6 and TNF-α lower levels of CTRPs which exacerbate IR, AD, and muscle and cardiac problems reported in NAFLD. Through the use of plasma analysis, levels of cytokines such as IL-6, TNF-α, and APRPs can be performed in a high throughput BioPlex® assay (Bio-Rad Laboratories, Inc.: Hercules, CA). We have extensive experience with these types of assays and have generated data using human samples in numerous studies conducted through the Center of Excellence for Biobehavioral Approaches to Symptom Management (CEBASM) at the School of Nursing. CTRP family members are also expressed in the plasma and at detectible levels. We will perform ELISA analysis to compare circulating levels of the various CTRPs using commercially available CTRP ELISA kits/reagents. Insulin resistance (IR) will be assessed by HOMO-IR utilizing fasting glucose and insulin. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02132780
Study type Observational
Source Virginia Commonwealth University
Contact
Status Completed
Phase N/A
Start date May 2014
Completion date May 2016

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