Table 1.
Disease | Pre-clinical evaluation |
Clinical evaluation |
||||
---|---|---|---|---|---|---|
Type of study | Main findings | Reference | Type of study | Main findings | Reference | |
Amyotrophic lateral sclerosis (ALS) | KD, MCT, or DP in SOD1-G93A transgenic ALS mouse model | Longer maintenance of motor function Decrease in motor neuron death Delay onset of motor symptoms |
Zhao et al., 2006, 2012; Ari et al., 2014; Tefera et al., 2016 | Clinical trial of KD use, phase III NCT01016522 | No result provided | Not published |
Angelman syndrome (AS) | KE-treated AS mouse model | Improvement of motor coordination No effect on locomotor activity |
Ciarlone et al., 2016 | Case reports (KD and low glycemic index diet in AS patients) | Decrease in seizures | Evangeliou et al., 2010; Thibert et al., 2012 |
Mitochondrial myopathy | KD in mouse model | Delayed disease progression | Ahola-Erkkila et al., 2010 | Pilot study KD in patients | Improvement of muscle strength and delayed disease progression | Ahola et al., 2016 |
Alzheimer’s disease | KD in APP/PS1 and Tg4510 mouse models KE in Alzheimer mouse models | Improvement of motor function Improvement in energy metabolism and reduction in amyloid deposition |
Beckett et al., 2013; Brownlow et al., 2013 Zhang J. et al., 2013; Pawlosky et al., 2017 | Pilot study for assessment of MCT tolerance in Alzheimer patients KE in a case of Alzheimer’s disease |
Good tolerance No improvement in cognitive function No assessment of motor function Gain in cognitive function and daily motor activity |
Ohnuma et al., 2016 Newport et al., 2015 |
Spinal cord injury (SCI) | KD in rats with SCI | Improvement of functional forelimb | Streijger et al., 2013 | Clinical trial of KD use | Safety and feasibility in patients with acute SCI | Guo et al., 2014 |
Parkinson’s disease | KD or βOHB in rodents models | Protection of dopaminergic neurons from degeneration Improvement of motor function | Tieu et al., 2003; Cheng et al., 2009; Yang and Cheng, 2010; Shaafi et al., 2016 | Feasibility study of KD use | Improvement of unified Parkinson’s disease rating scale score, including motor function | Vanitallie et al., 2005 |
Rett syndrome | Restricted KD or MCT in Rett syndrome (Mecp2 KO) mice | Improvement of motor behavior and reduction in anxiety Augmented survival, improvement in mitochondrial morphology |
Mantis et al., 2009; Park et al., 2014 | Cases reports (KD) | Improvement of motor function | Haas et al., 1986; Liebhaber et al., 2003 |
GLUT 1 deficiency | Case report KD use in GLUT1 patients Evaluation of KD short effect in GLUT1 patients |
Improvement of motor function Mainly improvement of cognitive function, with improvement of language and physical endurance Moderate improvement of motor disorder |
Friedman et al., 2006 Ramm-Pettersen et al., 2014 Bertoli et al., 2015 |
ALS, amyotrophic lateral sclerosis; AS, Angelman syndrome; βOHB, β-hydroxybutyrate; DP, Deanna protocol; KD, ketogenic diet; KEs, ketone esters; MCTs, medium-chain triglycerides.