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Ketogenic diet decreases oxidative stress and improves mitochondrial respiratory complex activity
Open accessAbstract
Cerebral metabolism of ketones after traumatic brain injury (TBI) improves neuropathology and behavior in an age-dependent manner. Neuroprotection is attributed to improved cellular energetics, although other properties contribute to the beneficial effects. Oxidative stress is responsible for mitochondrial dysfunction after TBI. Ketones decrease oxidative stress, increase antioxidants and scavenge free radicals. It is hypothesized that ketogenic diet (KD) will decrease post-TBI oxidative stress and improve mitochondria. Postnatal day 35 (PND35) male rats were given sham or controlled cortical impact (CCI) injury and placed on standard (STD) or KD. Ipsilateral cortex homogenates and mitochondria were assayed for markers of oxidative stress, antioxidant expression and mitochondrial function. Oxidative stress was significantly increased at 6 and 24 h post-injury and attenuated by KD while inducing protein expression of antioxidants, NAD(P)H dehydrogenase quinone 1 (NQO1) and superoxide dismutase (SOD1/2). Complex I activity was inhibited in STD and KD groups at 6 h and normalized by 24 h. KD significantly improved Complex II–III activity that was reduced in STD at 6 h. Activity remained reduced at 24 h in STD and unchanged in KD animals. These results strongly suggest that ketones improve post-TBI cerebral metabolism by providing alternative substrates and through antioxidant properties, preventing oxidative stress-mediated mitochondrial dysfunction.
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“Moreover, a ketogenic diet mediates its neuroprotective function through the attenuation of oxidative stress and induction of protein expression of antioxidants (Greco et al., 2016), as well as the modulation of neurotransmitter levels such as GABA, monoamines and glutamate (Hartman et al., 2007;Yudkoff et al., 2008).”
From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Greco et al., 2016
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“Meanwhile, ketones are neuroprotective including anticonvulsant properties in epilepsy (8 – 10), reduced oxidative stress and in fl ammation (11 – 13), and epigenetic upregulation of neurotrophic factors which could mediate improved mood symptoms (14).”
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BackgroundThe Ketogenic Diet in the Treatment of Post-concussion Syndrome—A Feasibility Study
Rippee, M. A., Chen, J., & Taylor, M. (2020) · Frontiers in Nutrition · doi:10.3389/fnut.2020.00160 · Cited by 29
Ketogenic diet in therapy of bipolar affective disorder - case report and literature review
Chmiel, I. (2021) · Psychiatria Polska · doi:10.12740/pp/onlinefirst/136356 · Cited by 29
“The antioxidant properties of the ketogenic diet have been demonstrated in a study by Greco et al. [61] on female rats with severe brain damage.”
Ichkova, A., Rodriguez‐Grande, B., Bar, C., Villega, F., Konsman, J. P., & Badaut, J. (2017) · Neurochemistry International · doi:10.1016/j.neuint.2017.03.022 · Cited by 29
Exercise factors as potential mediators of cognitive rehabilitation following traumatic brain injury
Stephan, J. S., & Sleiman, S. F. (2019) · Current Opinion in Neurology · doi:10.1097/wco.0000000000000754 · Cited by 32
“Ketones prevent oxidative stress-mediated mitochondrial dysfunction post-TBI by increasing antioxidants and scavenging free radicals [67].”
BackgroundDietary Antioxidants and Natural Compounds in Preventing Thrombosis and Cardiovascular Disease
Giurranna, E., Nencini, F., Bettiol, A., Borghi, S., Argento, F. R., Emmi, G., Silvestri, E., Taddei, N., Fiorillo, C., & Becatti, M. (2024) · International Journal of Molecular Sciences · doi:10.3390/ijms252111457 · Cited by 30
Dietary Restriction and Oxidative Stress: Friends or Enemies?
Mladenović, A., Lončarević‐Vasiljković, N., & Gonos, E. S. (2020) · Antioxidants and Redox Signaling · doi:10.1089/ars.2019.7959 · Cited by 28
“Ketone bodies decrease oxidative stress, increase antioxidants, and scavenge free radicals after TBI, and improve cerebral metabolism by providing alternative substrates, leading to the prevention of oxidative stress-mediated mitochondrial dysfunction (59).”
Kulbe, J. R., Singh, I. N., Wang, J. A., Cebak, J. E., & Hall, E. D. (2018) · Journal of Neurotrauma · doi:10.1089/neu.2017.5353 · Cited by 26
Application of ketogenic diets for pediatric neurocritical care
Lin, K., Lin, J.-J., & Wang, H.-S. (2020) · Biomedical Journal · doi:10.1016/j.bj.2020.02.002 · Cited by 26
Saito, E. R., Warren, C. E., Hanegan, C. M., Larsen, J. G., du Randt, J. D., Cannon, M. E., Saito, J. Y., Campbell, R. J., Kemberling, C. M., Miller, G., et al. (2022) · Metabolites · doi:10.3390/metabo12111019 · Cited by 24
Development of Obesity: The Driver and the Passenger
Kopp, W. (2020) · Diabetes Metabolic Syndrome and Obesity · doi:10.2147/dmso.s280146 · Cited by 25
Field, R., Field, T., Pourkazemi, F., & Rooney, K. B. (2021) · Nutrition Research Reviews · doi:10.1017/s0954422421000214 · Cited by 23
“Redox balance (reported in fifteen studies across eight disease models(63,71,78,86,92,120,180,181,186,190,192,195,196,203,210)).”
Dietary Macronutrient Management to Treat Mitochondrial Dysfunction in Parkinson’s Disease
Bajracharya, R., Youngson, N. A., & Ballard, J. W. O. (2019) · International Journal of Molecular Sciences · doi:10.3390/ijms20081850 · Cited by 24
“Largely, these improvements have been attributed to ketone bodies being able to act as an “alternative fuel”, ultimately bypassing glycolysis and providing Acetyl-CoA to enter the citric acid cycle and facilitate ATP production [110].”
BackgroundSingh, D., Kumar, A., & Kumari, S. (2022) · Current Neuropharmacology · doi:10.2174/1570159x20666220420130109 · Cited by 22
“The diet treatment reduced the oxidative stress induced by the cortical impact injury in rats, as evident by attenuated levels of antioxidants, NAD(P)H dehydrogenase quinone 1 and superoxide dismutase [85].”
McGeown, J. P., Hume, P. A., Theadom, A., Quarrie, K. L., & Borotkanics, R. (2020) · Journal of Neuroscience Research · doi:10.1002/jnr.24746 · Cited by 23
Carteri, R. B., Menegassi, L. N., Feldmann, M., Kopczynski, A., Rodolphi, M. S., Strogulski, N. R., Almeida, A. S., Marques, D. M., Porciúncula, L. O., & Portela, L. V. (2021) · Behavioural Brain Research · doi:10.1016/j.bbr.2021.113163 · Cited by 21
Microbiota-gut-brain axis: A novel potential target of ketogenic diet for epilepsy
Tang, Y. C., Wang, Q., & Liu, J. (2021) · Current Opinion in Pharmacology · doi:10.1016/j.coph.2021.08.018 · Cited by 21
Phase I single center trial of ketogenic diet for adults with traumatic brain injury
Arora, N., Litofsky, N. S., Golzy, M., Aneja, R., Staudenmyer, D., Qualls, K., & Patil, S. (2021) · Clinical Nutrition ESPEN · doi:10.1016/j.clnesp.2021.11.015 · Cited by 21
Kalafut, K. C., Mitchell, S. J., MacArthur, M. R., & Mitchell, J. R. (2022) · Frontiers in Nutrition · doi:10.3389/fnut.2022.839341 · Cited by 22
Mallet, D., Goutaudier, R., Barbier, E., Carnicella, S., Colca, J. R., Fauvelle, F., & Boulet, S. (2022) · Molecular Neurobiology · doi:10.1007/s12035-022-02962-9 · Cited by 21
Linking Migraine to Gut Dysbiosis and Chronic Non-Communicable Diseases
Lauro, M. D., Guerriero, C., Cornali, K., Albanese, M., Costacurta, M., Mercuri, N. B., Daniele, N. D., & Noce, A. (2023) · Nutrients · doi:10.3390/nu15204327 · Cited by 24
“These studies have shown that, through different mechanisms, the KD is able to reduce systemic inflammation [157] and OS [158] at the level of the CNS, and to positively modulate the gut microbiota [159], reducing the symptoms of migraine [160–162].”
BackgroundOliveira, T. P. D., Morais, A. L. B., dos Reis, P. L. B., Palotás, A., & Vieira, L. B. (2023) · Metabolites · doi:10.3390/metabo14010025 · Cited by 24
“Ketones antagonize inflammatory processes and oxidative stress [95,96], acting as signaling mediators [83].”
BackgroundQu, X., Huang, L. H., & Rong, J. (2024) · Scientific Reports · doi:10.1038/s41598-024-73384-x · Cited by 20
“In addition, the KD has demonstrated efficacy in attenuating oxidative stress and enhancing mitochondrial function, both of which are pivotal determinants of aging and longevity 24 .”
BackgroundKetogenic Diets and Depression and Anxiety
Janssen‐Aguilar, R., Vije, T., Peera, M., Al-Shamali, H. F., Meshkat, S., Lin, Q., Lou, W. Y. W., Laviada‐Molina, H., Phillips, M. L., & Bhat, V. (2025) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2025.3261 · Cited by 20
Chen, J., Chen, W., Han, K., Qi, E., Chen, R., Yu, M., Hou, L., & Lv, L. (2019) · European Journal of Neuroscience · doi:10.1111/ejn.14374 · Cited by 20
A ketogenic diet impacts markers of mitochondrial mass in a tissue specific manner in aged mice
Zhou, Z., Hagopian, K., López-Domínguez, J. A., Kim, K., Jasoliya, M., Roberts, M. N., Cortopassi, G. A., Showalter, M. R., Roberts, B. S., González-Reyes, J. A., et al. (2021) · Aging · doi:10.18632/aging.202834 · Cited by 19
Emerging Nonpharmacologic Interventions to Treat Diabetic Peripheral Neuropathy
Enders, J. D., Elliott, D., & Wright, D. E. (2022) · Antioxidants and Redox Signaling · doi:10.1089/ars.2022.0158 · Cited by 23
“(Greco et al, 2016).”
Zhang, F., Wu, H., Jin, Y., & Zhang, X. (2018) · World Neurosurgery · doi:10.1016/j.wneu.2018.09.037 · Cited by 19
Ketogenic regimens for acute neurotraumatic events
Yarar‐Fisher, C., Li, J., Womack, E. D., Alharbi, A., Seira, O., Kolehmainen, K., Plunet, W. T., Alaeiilkhchi, N., & Tetzlaff, W. (2021) · Current Opinion in Biotechnology · doi:10.1016/j.copbio.2020.12.009 · Cited by 18
A ketogenic diet reduces mechanical allodynia and improves epidermal innervation in diabetic mice
Enders, J. D., Swanson, M. T., Ryals, J. M., & Wright, D. E. (2021) · Pain · doi:10.1097/j.pain.0000000000002401 · Cited by 18
Xu, X.-J., Yang, M.-S., Zhang, B., Ge, Q., Niu, F., Dong, J., Zhuang, Y., & Liu, B.-Y. (2021) · Neural Regeneration Research · doi:10.4103/1673-5374.314315 · Cited by 18
“Secondary injury occurs as a consequence of diverse pathological mechanisms, including excitotoxicity (Fujikawa, 2015; Tehse and Taghibiglou, 2019), oxidative stress (Cornelius et al., 2013; Greco et al., 2016; Chen et al., 2017), cerebral metabolic dysfunction (Glenn et al.”
BackgroundXu, Y., Liu, Z., Xu, S., Li, C., Li, M., Cao, S., Sun, Y., Dai, H., Guo, Y., Chen, X., et al. (2022) · Nutrients · doi:10.3390/nu14071431 · Cited by 18
“KD was recently found to reduce oxidative stress following CCI, while inducing the levels of antioxidants, superoxide dismutase (SOD1/2), and NAD(P)H dehydrogenase, thereby improving mitochondrial respiratory complex activity [56].”
BackgroundDietary therapy to halt the progression of diabetes to diabetic kidney disease
Hu, H., Ding, G., & Liang, W. (2025) · Food & Function · doi:10.1039/d4fo06011c · Cited by 17
Reddy, D. S., Golub, V. M., Ramakrishnan, S., Churn, S. B., Shapiro, L. A., Iannucci, J., Pitkänen, A., Galanopoulou, A. S., Maganti, R. K., & Boison, D. (2025) · Pharmacological Reviews · doi:10.1016/j.pharmr.2025.100080 · Cited by 18
Drabińska, N., Juśkiewicz, J., & Wiczkowski, W. (2022) · Nutrients · doi:10.3390/nu14224805 · Cited by 16
“In addition, KD was found to attenuate oxidative stress after traumatic brain injury in an animal model [23].”
BackgroundIldarabadi, A., Ali, S. N. M. M., Rahmani, F., Mosavari, N., Pourbakhtyaran, E., & Rezaei, N. (2024) · Reviews in the Neurosciences · doi:10.1515/revneuro-2023-0128 · Cited by 17
Nutrition in adult patients with selected lysosomal storage diseases
Carubbi, F., Barbato, A., Burlina, A., Francini, F., Mignani, R., Pegoraro, E., Landini, L., Danieli, G. D., Bruni, S., Strazzullo, P., et al. (2020) · Nutrition Metabolism and Cardiovascular Diseases · doi:10.1016/j.numecd.2020.11.028 · Cited by 16
Şahin, E., Aykanat, N. E. B., Kaçar, S., Bağcı, R., & Şahıntürk, V. (2021) · The Turkish Journal of Gastroenterology · doi:10.5152/tjg.2021.191062 · Cited by 16
Ketogenic Diet for Neonatal Hypoxic–Ischemic Encephalopathy
Zhou, Y., Sun, L., & Wang, H. (2022) · ACS Chemical Neuroscience · doi:10.1021/acschemneuro.2c00609 · Cited by 15
Metadata
- Authors
- Greco, T., Glenn, T. C., Hovda, D. A., & Prins, M. L.
- Affiliations
- University of California, Los Angeles (US)
- Corresponding author
- Greco, Tiffany
- Venue
- Journal of Cerebral Blood Flow & Metabolism
- Publisher
- SAGE Publications
- Published
- 2016-07-22
- Volume
- 36
- Issue
- 9
- Pages
- 1603-1613
- ISSN
- 0271-678X (ISSN-L)
- 1559-7016
- PMC
- PMC5012517
- OpenAlex
- W2285042112
- Cited by
- 210
- References
- 43
- Citations by year
- 2026: 22 · 2025: 28 · 2024: 27 · 2023: 18 · 2022: 24 · 2021: 28 · 2020: 22 · 2019: 15 · 2018: 13 · 2017: 6 · 2016: 7
- FWCI
- 6.38
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Cerebral Blood Flow & Metabolism (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Funders
- NFL Charities
- Brain Injury Research Center
- Topics
- Health Sciences › Medicine › Physiology (medical) › Diet and metabolism studies
- Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury and Neurovascular Disturbances
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
- Keywords
- ketogenic diet, traumatic brain injury, oxidative stress, mitochondrial dysfunction, respiratory chain complexes, ketone body metabolism, neuroprotection, antioxidant enzymes, NQO1, superoxide dismutase, controlled cortical impact, brain metabolism
- MeSH terms
- Animals, Antioxidants, Brain Injuries, Free Radicals, Ketones, Male, Mitochondria, Time Factors, Electron Transport Complex III, Oxidative Stress, Electron Transport Complex II, Rats, Diet, Ketogenic
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