The Effect of Diet on Chronic Inflammation and Related Disorders Following Spinal Cord Injury

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-09-30

Study Completion Date

2015-02-28

Brief Summary

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Spinal cord Injury (SCI) is a condition commonly associated with a state of chronic low-grade inflammation due to a variety of factors such heightened risk for infection and development of metabolic disorders. Many disorders which have been demonstrated to have an inflammatory basis have also been found to be at much higher prevalence following SCI. Such conditions include, but are not limited to, depression, cognitive impairment, neuropathic pain, and somatic/autonomic nerve function. The fact that such disorders have an inflammatory basis provides a unique opportunity to treat them with intervention strategies which target the immune system. Natural anti-inflammatory interventions including a diet consisting of foods and supplements with anti-inflammatory properties may be an effective option for treating inflammation in this population. As this treatment strategy will target the inflammatory basis of many disorders it would be expected to lead to a reduction in pro-inflammatory mediators thereby leading to more sustainable long-term immune improvements regarding enzyme function and protein balances. Despite this, surprisingly little research has focused on the use of anti-inflammatory foods for the treatment of chronic inflammatory conditions, and effects specific to SCI have been almost completely neglected. As such, the current study will focus on the daily intake of natural supplements with anti-inflammatory properties over a 3 month intervention and the effects on inflammation and associated disorders will be assessed. It is hypothesized that the supplementation will result in positive alterations in enzyme regulation and protein balances resulting in improvements in each of the outcome measures of interest.

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Detailed Description

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Spinal cord injury (SCI) is a condition commonly associated with a state of chronic inflammation due to a number of factors. A loss of motor and sensory function typically results in a greater susceptibility to the development of acute secondary health complications such as urinary tract infections and pressure sores resulting in frequent bouts of inflammation. The loss of mobility also places these individuals at an elevated risk for the development of a variety of metabolic disorders such as obesity and type 2 diabetes; each of which are independently associated with chronic inflammation. Additionally, elevated levels of circulating proinflammatory cytokines and autoantibodies have been shown to be present in the serum of individuals with SCI even when asymptomatic for other secondary health complications. As such, following SCI, individuals are commonly in a state of perpetual low grade inflammation. It has yet to be established whether or not such elevations in proinflammatory mediators are beneficial to patients or if they are in fact surrogate markers of further neurological impairment. Such mediators play critical roles tissue repair however, it is also well established that the immune system has the ability to communicate with other systems of the body. As such, the immune system has the ability to influence and be influenced by other systems suggesting that immune dysfunction has the capability (and likelihood) of influencing the nervous system to some degree. A variety of neurological and behavioural disorders including depression, cognitive impairment, and neuropathic pain have each been linked to a state of chronic inflammation and are each at a dramatically elevated prevalence following SCI.

Pro-inflammatory mediators have been suggested to influence the nervous system via both direct and indirect mechanisms. There is evidence to suggest cytokines may directly influence somatic nerves by altering ion channel kinetics through channelopathy. Pro-inflammatory cytokines have also been shown to possess the ability to up-regulate key enzymes resulting in protein imbalances and/or increased production of neuromodulatory proteins, which may influence the severity of a variety of neural disorders.

Presently, the majority of treatment strategies for conditions such as major depression and pain utilize drug treatments which target "downstream" enzymes and receptors. As such, these treatments provide fairly rapid and affective relief from symptoms. However, as this strategy does not target the inflammatory basis of such disorders it provides only a temporary solution whereby symptoms are likely to return upon the cessation of the treatment. In addition, long term use of certain drug treatments such as selective serotonin re-uptake inhibitors (SSRI's) may only enhance biochemical vulnerability and exacerbate symptoms long-term. An understanding of how the immune and nervous systems interact may provide a unique opportunity to treat neural and behavioral disorders by targeting aspects of the immune system via anti-inflammatory interventions.

Natural anti-inflammatory interventions including a diet consisting of foods and supplements with anti-inflammatory properties may be an effective option for treating inflammation in this population. As this treatment strategy will target the inflammatory basis of many disorders it would be expected to lead to a reduction in pro-inflammatory mediators thereby leading to more sustainable long-term immune improvements. Despite this, surprisingly little research has focused on the use of anti-inflammatory foods for the treatment of chronic inflammatory conditions, and effects specific to SCI have been almost completely neglected.

The research objective of the present study is to evaluate the effects of a reduced inflammatory state by means of an anti-inflammatory diet on depression, cognitive impairment, neuropathic pain, and somatic and autonomic nerve function. Participants will be placed on a 3 month anti-inflammatory diet consisting of daily supplementation including omega-3 polyunsaturated fatty acids, InflanNox (curcumin), anti-oxidants, chlorella, and a vegetarian protein powder. A focus on foods and supplements with natural anti-inflammatory properties is expected to lead to beneficial reductions in the incidence of infections as well as positive metabolic adaptations. Together, this should help to reduce elevated levels of proinflammatory mediators. It is hypothesized that a reduction in pro-inflammatory mediators will result in positive alterations in enzyme regulation leading to beneficial changes in protein balances and ultimately improvements in each of the measures of outcome.

Conditions

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Neuropathic Pain Depression Cognitive Impairment Somatic Neuropathy Autonomic Dysfunction

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Anti-inflammatory Supplementation

Omega-3 pill (500 EPA / 250 DHA) taken orally 3 times daily, Vegetation Protein Powder (45g) taken orally once daily, InflanNox capsule (400mg curcumin) taken 3 times daily, Anti-oxidant Network capsule (615mg) taken twice daily, Chlorella tablet (1000mg) taken 6 times daily

Group Type EXPERIMENTAL