Skip to main content
Top
Published in: Trials 1/2020

Open Access 01-12-2020 | Study protocol

Evaluation of a ketogenic diet for improvement of neurological recovery in individuals with acute spinal cord injury: study protocol for a randomized controlled trial

Published in: Trials | Issue 1/2020

Login to get access

Abstract

Background

Therapies that significantly improve the neurological and functional recovery of individuals with spinal cord injury (SCI) are still urgently needed. The ketogenic diet (KD) has been shown to improve forelimb motor function in an SCI rat model, likely by reducing inflammation and cell death in the spinal cord. Furthermore, our recent pilot study in patients with SCI showed that, compared with a standard hospital diet (SD), 5 weeks of KD started during acute care improved upper extremity motor function and reduced serum levels of a neuroinflammatory blood protein. The primary goals of the current study are to: 1) show the safety and feasibility of administering a KD during acute care for SCI; 2) determine if consuming 5 weeks of a KD significantly improves motor and sensory functions, functional independence and glycemic control; and 3) quantify serum biomarkers that are linked to improvements in neurological recovery and functional independence via targeted proteomics.

Methods/design

In a single-masked, longitudinal, randomized, parallel-controlled study, a total of 60 eligible, acutely traumatic spinal cord injured (cervical 5 to thoracic 12) participants ranging in age from 18 to 60 years with American Spinal Injury Association impairment scale (AIS) grades A–C (AIS-A, sensorimotor complete; AIS-B, sensory incomplete/motor complete; and AIS-C, nonfunctional motor incomplete) are being enrolled. Neurological and functional examinations, resting energy expenditure, blood, urine, and stool collections, and protein analyses related to neurological recovery will be performed within 72 h of injury (baseline measure) and repeated after 5 weeks of KD or SD (discharge measure). We anticipate a completion rate of 80% with a total of 48 participants.

Discussion

Intervention with a more neuroprotective diet during acute care of SCI can be implemented anywhere in the world at low cost and without major regulatory hurdles. Better functional recovery will lead to a better quality of life and long-term health outcomes in individuals with SCI. While this study targets SCI, if successful it has the potential to improve neurological outcomes for individuals with various traumatic injuries.

Trial registration

NCT03509571 Registered on April 28, 2018.
Appendix
Available only for authorised users
Literature
1.
go back to reference Bauman WA, Spungen AM. Disorders of carbohydrate and lipid metabolism in veterans with paraplegia or quadriplegia: a model of premature aging. Metab Clin Exp. 1994;43(6):749–56.PubMedCrossRef Bauman WA, Spungen AM. Disorders of carbohydrate and lipid metabolism in veterans with paraplegia or quadriplegia: a model of premature aging. Metab Clin Exp. 1994;43(6):749–56.PubMedCrossRef
2.
go back to reference Bauman WA, Spungen AM. Invited review carbohydrate and lipid metabolism in chronic spinal cord injury. J Spinal Cord Med. 2001;24(4):266–77.PubMedCrossRef Bauman WA, Spungen AM. Invited review carbohydrate and lipid metabolism in chronic spinal cord injury. J Spinal Cord Med. 2001;24(4):266–77.PubMedCrossRef
3.
go back to reference Jensen M, Molton I, Groah S, Campbell M, Charlifue S, Chiodo A, et al. Secondary health conditions in individuals aging with SCI: terminology, concepts and analytic approaches. Spinal Cord. 2012;50(5):373.PubMedCrossRef Jensen M, Molton I, Groah S, Campbell M, Charlifue S, Chiodo A, et al. Secondary health conditions in individuals aging with SCI: terminology, concepts and analytic approaches. Spinal Cord. 2012;50(5):373.PubMedCrossRef
4.
go back to reference Strauss DJ, DeVivo MJ, Paculdo DR, Shavelle RM. Trends in life expectancy after spinal cord injury. Arch Phys Med Rehabil. 2006;87(8):1079–85.PubMedCrossRef Strauss DJ, DeVivo MJ, Paculdo DR, Shavelle RM. Trends in life expectancy after spinal cord injury. Arch Phys Med Rehabil. 2006;87(8):1079–85.PubMedCrossRef
5.
go back to reference Michael J, Krause JS, Lammertse DP. Recent trends in mortality and causes of death among persons with spinal cord injury. Arch Phys Med Rehabil. 1999;80(11):1411–9.CrossRef Michael J, Krause JS, Lammertse DP. Recent trends in mortality and causes of death among persons with spinal cord injury. Arch Phys Med Rehabil. 1999;80(11):1411–9.CrossRef
6.
go back to reference Shavelle RM, DeVivo MJ, Paculdo DR, Vogel LC, Strauss DJ. Long-term survival after childhood spinal cord injury. J Spinal Cord Med. 2007;30(suppl1):S48–54.PubMedPubMedCentralCrossRef Shavelle RM, DeVivo MJ, Paculdo DR, Vogel LC, Strauss DJ. Long-term survival after childhood spinal cord injury. J Spinal Cord Med. 2007;30(suppl1):S48–54.PubMedPubMedCentralCrossRef
7.
go back to reference Silva NA, Sousa N, Reis RL, Salgado AJ. From basics to clinical: a comprehensive review on spinal cord injury. Prog Neurobiol. 2014;114:25–57.PubMedCrossRef Silva NA, Sousa N, Reis RL, Salgado AJ. From basics to clinical: a comprehensive review on spinal cord injury. Prog Neurobiol. 2014;114:25–57.PubMedCrossRef
8.
go back to reference Park E, Velumian AA, Fehlings MG. The role of excitotoxicity in secondary mechanisms of spinal cord injury: a review with an emphasis on the implications for white matter degeneration. J Neurotrauma. 2004;21(6):754–74.PubMedCrossRef Park E, Velumian AA, Fehlings MG. The role of excitotoxicity in secondary mechanisms of spinal cord injury: a review with an emphasis on the implications for white matter degeneration. J Neurotrauma. 2004;21(6):754–74.PubMedCrossRef
9.
go back to reference Badhiwala JH, Wilson JR, Kwon BK, Casha S, Fehlings MG. A review of clinical trials in spinal cord injury including biomarkers. J Neurotrauma. 2018;35(16):1906–17.PubMedCrossRef Badhiwala JH, Wilson JR, Kwon BK, Casha S, Fehlings MG. A review of clinical trials in spinal cord injury including biomarkers. J Neurotrauma. 2018;35(16):1906–17.PubMedCrossRef
10.
go back to reference Kobayakawa K, Kumamaru H, Saiwai H, Kubota K, Ohkawa Y, Kishimoto J, et al. Acute hyperglycemia impairs functional improvement after spinal cord injury in mice and humans. Sci Transl Med. 2014;6(256):256ra137.PubMedCrossRef Kobayakawa K, Kumamaru H, Saiwai H, Kubota K, Ohkawa Y, Kishimoto J, et al. Acute hyperglycemia impairs functional improvement after spinal cord injury in mice and humans. Sci Transl Med. 2014;6(256):256ra137.PubMedCrossRef
11.
go back to reference Sala F, Menna G, Bricolo A, Young W. Role of glycemia in acute spinal cord injury: data from a rat experimental model and clinical experience. Ann N Y Acad Sci. 1999;890(1):133–54.PubMedCrossRef Sala F, Menna G, Bricolo A, Young W. Role of glycemia in acute spinal cord injury: data from a rat experimental model and clinical experience. Ann N Y Acad Sci. 1999;890(1):133–54.PubMedCrossRef
12.
go back to reference Freeman JM, Vining EP, Pillas DJ, Pyzik PL, Casey JC. The efficacy of the ketogenic diet—1998: a prospective evaluation of intervention in 150 children. Pediatrics. 1998;102(6):1358–63.PubMedCrossRef Freeman JM, Vining EP, Pillas DJ, Pyzik PL, Casey JC. The efficacy of the ketogenic diet—1998: a prospective evaluation of intervention in 150 children. Pediatrics. 1998;102(6):1358–63.PubMedCrossRef
13.
go back to reference VanItallie TB, Nonas C, Di Rocco A, Boyar K, Hyams K, Heymsfield S. Treatment of Parkinson disease with diet-induced hyperketonemia: a feasibility study. Neurology. 2005;64(4):728–30.PubMedCrossRef VanItallie TB, Nonas C, Di Rocco A, Boyar K, Hyams K, Heymsfield S. Treatment of Parkinson disease with diet-induced hyperketonemia: a feasibility study. Neurology. 2005;64(4):728–30.PubMedCrossRef
14.
15.
go back to reference Prins ML, Matsumoto JH. The collective therapeutic potential of cerebral ketone metabolism in traumatic brain injury. J Lipid Res. 2014;55(12):2450–7.PubMedPubMedCentralCrossRef Prins ML, Matsumoto JH. The collective therapeutic potential of cerebral ketone metabolism in traumatic brain injury. J Lipid Res. 2014;55(12):2450–7.PubMedPubMedCentralCrossRef
16.
go back to reference Reger MA, Henderson ST, Hale C, Cholerton B, Baker LD, Watson G, et al. Effects of β-hydroxybutyrate on cognition in memory-impaired adults. Neurobiol Aging. 2004;25(3):311–4.PubMedCrossRef Reger MA, Henderson ST, Hale C, Cholerton B, Baker LD, Watson G, et al. Effects of β-hydroxybutyrate on cognition in memory-impaired adults. Neurobiol Aging. 2004;25(3):311–4.PubMedCrossRef
17.
go back to reference Hussain TA, Mathew TC, Dashti AA, Asfar S, Al-Zaid N, Dashti HM. Effect of low-calorie versus low-carbohydrate ketogenic diet in type 2 diabetes. Nutrition. 2012;28(10):1016–21.PubMedCrossRef Hussain TA, Mathew TC, Dashti AA, Asfar S, Al-Zaid N, Dashti HM. Effect of low-calorie versus low-carbohydrate ketogenic diet in type 2 diabetes. Nutrition. 2012;28(10):1016–21.PubMedCrossRef
18.
go back to reference Feinman RD, Pogozelski WK, Astrup A, Bernstein RK, Fine EJ, Westman EC, et al. Dietary carbohydrate restriction as the first approach in diabetes management: critical review and evidence base. Nutrition. 2015;31(1):1–13.PubMedCrossRef Feinman RD, Pogozelski WK, Astrup A, Bernstein RK, Fine EJ, Westman EC, et al. Dietary carbohydrate restriction as the first approach in diabetes management: critical review and evidence base. Nutrition. 2015;31(1):1–13.PubMedCrossRef
19.
go back to reference Streijger F, Plunet WT, Lee JH, Liu J, Lam CK, Park S, et al. Ketogenic diet improves forelimb motor function after spinal cord injury in rodents. PLoS One. 2013;8(11):e78765.PubMedPubMedCentralCrossRef Streijger F, Plunet WT, Lee JH, Liu J, Lam CK, Park S, et al. Ketogenic diet improves forelimb motor function after spinal cord injury in rodents. PLoS One. 2013;8(11):e78765.PubMedPubMedCentralCrossRef
20.
go back to reference Yarar-Fisher C, Kulkarni A, Li J, Farley P, Renfro C, Aslam H, et al. Evaluation of a ketogenic diet for improvement of neurological recovery in individuals with acute spinal cord injury: a pilot, randomized safety and feasibility trial. Spinal Cord Ser Cases. 2018;4(1):88.PubMedPubMedCentralCrossRef Yarar-Fisher C, Kulkarni A, Li J, Farley P, Renfro C, Aslam H, et al. Evaluation of a ketogenic diet for improvement of neurological recovery in individuals with acute spinal cord injury: a pilot, randomized safety and feasibility trial. Spinal Cord Ser Cases. 2018;4(1):88.PubMedPubMedCentralCrossRef
21.
go back to reference Bough KJ, Wetherington J, Hassel B, Pare JF, Gawryluk JW, Greene JG, et al. Mitochondrial biogenesis in the anticonvulsant mechanism of the ketogenic diet. Ann Neurol. 2006;60(2):223–35.PubMedCrossRef Bough KJ, Wetherington J, Hassel B, Pare JF, Gawryluk JW, Greene JG, et al. Mitochondrial biogenesis in the anticonvulsant mechanism of the ketogenic diet. Ann Neurol. 2006;60(2):223–35.PubMedCrossRef
22.
go back to reference Veech RL, Chance B, Kashiwaya Y, Lardy HA, Cahill GF Jr. Ketone bodies, potential therapeutic uses. IUBMB Life. 2001;51(4):241–7.PubMedCrossRef Veech RL, Chance B, Kashiwaya Y, Lardy HA, Cahill GF Jr. Ketone bodies, potential therapeutic uses. IUBMB Life. 2001;51(4):241–7.PubMedCrossRef
23.
go back to reference Kramer JK, Taylor P, Steeves JD, Curt A. Dermatomal somatosensory evoked potentials and electrical perception thresholds during recovery from cervical spinal cord injury. Neurorehabil Neural Repair. 2010;24(4):309–17.PubMedCrossRef Kramer JK, Taylor P, Steeves JD, Curt A. Dermatomal somatosensory evoked potentials and electrical perception thresholds during recovery from cervical spinal cord injury. Neurorehabil Neural Repair. 2010;24(4):309–17.PubMedCrossRef
24.
go back to reference Catz A, Itzkovich M. Spinal Cord Independence Measure: comprehensive ability rating scale for the spinal cord lesion patient. J Rehabil Res Dev. 2007;44(1):65.PubMedCrossRef Catz A, Itzkovich M. Spinal Cord Independence Measure: comprehensive ability rating scale for the spinal cord lesion patient. J Rehabil Res Dev. 2007;44(1):65.PubMedCrossRef
25.
go back to reference Catz MI, Steinberg F, Philo O, Ring H, Ronen J, Spasser R, Gepstein R, Tamir A, Amiram. The Catz-Itzkovich SCIM: a revised version of the spinal cord independence measure. Disabil Rehabil. 2001;23(6):263–8. Catz MI, Steinberg F, Philo O, Ring H, Ronen J, Spasser R, Gepstein R, Tamir A, Amiram. The Catz-Itzkovich SCIM: a revised version of the spinal cord independence measure. Disabil Rehabil. 2001;23(6):263–8.
26.
go back to reference Pouw M, Van Middendorp J, van Kampen A, Curt A, van de Meent H, Hosman A. Diagnostic criteria of traumatic central cord syndrome. Part 3: descriptive analyses of neurological and functional outcomes in a prospective cohort of traumatic motor incomplete tetraplegics. Spinal Cord. 2011;49(5):614.PubMedCrossRef Pouw M, Van Middendorp J, van Kampen A, Curt A, van de Meent H, Hosman A. Diagnostic criteria of traumatic central cord syndrome. Part 3: descriptive analyses of neurological and functional outcomes in a prospective cohort of traumatic motor incomplete tetraplegics. Spinal Cord. 2011;49(5):614.PubMedCrossRef
28.
go back to reference DeVivo M, Biering-Sørensen F, New P, Chen Y. Standardization of data analysis and reporting of results from the international spinal cord injury core data set. Spinal Cord. 2011;49(5):596.PubMedCrossRef DeVivo M, Biering-Sørensen F, New P, Chen Y. Standardization of data analysis and reporting of results from the international spinal cord injury core data set. Spinal Cord. 2011;49(5):596.PubMedCrossRef
29.
go back to reference Ditunno J, Young W, Donovan W, Creasey G. The international standards booklet for neurological and functional classification of spinal cord injury. Spinal Cord. 1994;32(2):70.CrossRef Ditunno J, Young W, Donovan W, Creasey G. The international standards booklet for neurological and functional classification of spinal cord injury. Spinal Cord. 1994;32(2):70.CrossRef
30.
go back to reference Maynard FM Jr, Bracken MB, Creasey G, Ditunno JF Jr, Donovan WH, Ducker TB, et al. International standards for neurological and functional classification of spinal cord injury. Spinal Cord. 1997;35(5):266.PubMedCrossRef Maynard FM Jr, Bracken MB, Creasey G, Ditunno JF Jr, Donovan WH, Ducker TB, et al. International standards for neurological and functional classification of spinal cord injury. Spinal Cord. 1997;35(5):266.PubMedCrossRef
31.
go back to reference Waters RL, Adkins RH, Yakura JS, Sie I. Motor and sensory recovery following complete tetraplegia. Arch Phys Med Rehabil. 1993;74(3):242–7.PubMed Waters RL, Adkins RH, Yakura JS, Sie I. Motor and sensory recovery following complete tetraplegia. Arch Phys Med Rehabil. 1993;74(3):242–7.PubMed
32.
go back to reference Björhall K, Miliotis T, Davidsson P. Comparison of different depletion strategies for improved resolution in proteomic analysis of human serum samples. Proteomics. 2005;5(1):307–17.PubMedCrossRef Björhall K, Miliotis T, Davidsson P. Comparison of different depletion strategies for improved resolution in proteomic analysis of human serum samples. Proteomics. 2005;5(1):307–17.PubMedCrossRef
33.
go back to reference Sharma V, Eckels J, Schilling B, Ludwig C, Jaffe JD, MacCoss MJ, et al. Panorama Public: a public repository for quantitative data sets processed in Skyline. Mol Cell Proteomics. 2018;17(6):1239–44.PubMedPubMedCentralCrossRef Sharma V, Eckels J, Schilling B, Ludwig C, Jaffe JD, MacCoss MJ, et al. Panorama Public: a public repository for quantitative data sets processed in Skyline. Mol Cell Proteomics. 2018;17(6):1239–44.PubMedPubMedCentralCrossRef
34.
go back to reference LeBlanc A, Michaud SA, Percy AJ, Hardie DB, Yang J, Sinclair NJ, et al. Multiplexed MRM-based protein quantitation using two different stable isotope-labeled peptide isotopologues for calibration. J Proteome Res. 2017;16(7):2527–36.PubMedCrossRef LeBlanc A, Michaud SA, Percy AJ, Hardie DB, Yang J, Sinclair NJ, et al. Multiplexed MRM-based protein quantitation using two different stable isotope-labeled peptide isotopologues for calibration. J Proteome Res. 2017;16(7):2527–36.PubMedCrossRef
35.
go back to reference Sajic T, Liu Y, Aebersold R. Using data-independent, high-resolution mass spectrometry in protein biomarker research: perspectives and clinical applications. Proteomics Clin Appl. 2015;9(3–4):307–21.PubMedCrossRef Sajic T, Liu Y, Aebersold R. Using data-independent, high-resolution mass spectrometry in protein biomarker research: perspectives and clinical applications. Proteomics Clin Appl. 2015;9(3–4):307–21.PubMedCrossRef
36.
go back to reference Kramer JL, Lammertse DP, Schubert M, Curt A, Steeves JD. Relationship between motor recovery and independence after sensorimotor-complete cervical spinal cord injury. Neurorehabil Neural Repair. 2012;26(9):1064–71.PubMedCrossRef Kramer JL, Lammertse DP, Schubert M, Curt A, Steeves JD. Relationship between motor recovery and independence after sensorimotor-complete cervical spinal cord injury. Neurorehabil Neural Repair. 2012;26(9):1064–71.PubMedCrossRef
Metadata
Title
Evaluation of a ketogenic diet for improvement of neurological recovery in individuals with acute spinal cord injury: study protocol for a randomized controlled trial
Publication date
01-12-2020
Published in
Trials / Issue 1/2020
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-020-04273-7

Other articles of this Issue 1/2020

Trials 1/2020 Go to the issue