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Ketogenic diet performance

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https://www.readbyqxmd.com/read/28101805/ketogenic-diet-in-pyruvate-dehydrogenase-complex-deficiency-short-and-long-term-outcomes
#1
Kalliopi Sofou, Maria Dahlin, Tove Hallböök, Marie Lindefeldt, Gerd Viggedal, Niklas Darin
OBJECTIVES: Our aime was to study the short- and long-term effects of ketogenic diet on the disease course and disease-related outcomes in patients with pyruvate dehydrogenase complex deficiency, the metabolic factors implicated in treatment outcomes, and potential safety and compliance issues. METHODS: Pediatric patients diagnosed with pyruvate dehydrogenase complex deficiency in Sweden and treated with ketogenic diet were evaluated. Study assessments at specific time points included developmental and neurocognitive testing, patient log books, and investigator and parental questionnaires...
January 18, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28098939/a-systematic-review-of-economic-evaluations-of-treatments-for-patients-with-epilepsy
#2
REVIEW
Ben F M Wijnen, Ghislaine A P G van Mastrigt, Silvia M A A Evers, Olga Gershuni, Danielle A J E Lambrechts, Marian H J M Majoie, Debby Postulart, Bert A P Aldenkamp, Reina J A de Kinderen
The increasing number of treatment options and the high costs associated with epilepsy have fostered the development of economic evaluations in epilepsy. It is important to examine the availability and quality of these economic evaluations and to identify potential research gaps. As well as looking at both pharmacologic (antiepileptic drugs [AEDs]) and nonpharmacologic (e.g., epilepsy surgery, ketogenic diet, vagus nerve stimulation) therapies, this review examines the methodologic quality of the full economic evaluations included...
January 18, 2017: Epilepsia
https://www.readbyqxmd.com/read/28074323/changes-in-cerebral-metabolism-during-ketogenic-diet-in-patients-with-primary-brain-tumors-1-h-mrs-study
#3
Moran Artzi, Gilad Liberman, Nachum Vaisman, Felix Bokstein, Faina Vitinshtein, Orna Aizenstein, Dafna Ben Bashat
Normal brain cells depend on glucose metabolism, yet they have the flexibility to switch to the usage of ketone bodies during caloric restriction. In contrast, tumor cells lack genomic and metabolic flexibility and are largely dependent on glucose. Ketogenic-diet (KD) was suggested as a therapeutic option for malignant brain cancer. This study aimed to detect metabolic brain changes in patients with malignant brain gliomas on KD using proton magnetic-resonance-spectroscopy ((1)H-MRS). Fifty MR scans were performed longitudinally in nine patients: four patients with recurrent glioblastoma (GB) treated with KD in addition to bevacizumab; one patient with gliomatosis-cerebri treated with KD only; and four patients with recurrent GB who did not receive KD...
January 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28012184/low-carbohydrate-high-fat-diet-impairs-exercise-economy-and-negates-the-performance-benefit-from-intensified-training-in-elite-race-walkers
#4
Louise M Burke, Megan L Ross, Laura A Garvican-Lewis, Marijke Welvaert, Ida A Heikura, Sara G Forbes, Joanne G Mirtschin, Louise E Cato, Nicki Strobel, Avish P Sharma, John A Hawley
We investigated the effects of adaptation to a ketogenic low-carbohydrate (CHO), high-fat diet (LCHF) during 3 wk of intensified training on metabolism and performance of world-class endurance athletes. We controlled three isoenergetic diets in elite race walkers: High CHO availability (8.6 g.kg(-) 1.d(-1) CHO, 2.1 g.kg(-) 1.d(-1) protein; 1.2 g.kg(-) 1.d(-1) fat) consumed before/during/after training (HCHO, n = 9): identical macronutrient intake, periodised within/between days to alternate between low and high CHO availability (PCHO, n = 10); LCHF (<50 g...
December 23, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27836684/ketogenic-diets-improve-behaviors-associated-with-autism-spectrum-disorder-in-a-sex-specific-manner-in-the-el-mouse
#5
David N Ruskin, Jessica A Fortin, Subrina N Bisnauth, Susan A Masino
The core symptoms of autism spectrum disorder are poorly treated with current medications. Symptoms of autism spectrum disorder are frequently comorbid with a diagnosis of epilepsy and vice versa. Medically-supervised ketogenic diets are remarkably effective nonpharmacological treatments for epilepsy, even in drug-refractory cases. There is accumulating evidence that supports the efficacy of ketogenic diets in treating the core symptoms of autism spectrum disorders in animal models as well as limited reports of benefits in patients...
January 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27822291/monitoring-for-compliance-with-a-ketogenic-diet-what-is-the-best-time-of-day-to-test-for-urinary-ketosis
#6
Paul Urbain, Hartmut Bertz
BACKGROUND: The ketogenic diet (KD) is a very low-carbohydrate, high-fat and adequate-protein diet with no calorie limit that induces a metabolic condition called "physiological ketosis". It was first introduced to treat epilepsy in the 1920s and has become quite popular recently as weight-loss and performance-enhancing diet. Its therapeutic use in a range of diseases is under investigation. During KD interventions people are supposed to monitor compliance with the dietary regimen by daily urine testing for ketosis...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27777605/metabolic-response-of-glioblastoma-cells-associated-with-glucose-withdrawal-and-pyruvate-substitution-as-revealed-by-gc-ms
#7
Henry Oppermann, Yonghong Ding, Jeevan Sharma, Mandy Berndt Paetz, Jürgen Meixensberger, Frank Gaunitz, Claudia Birkemeyer
BACKGROUND: Tumor cells are highly dependent on glucose even in the presence of oxygen. This concept called the Warburg effect is a hallmark of cancer and strategies are considered to therapeutically exploit the phenomenon such as ketogenic diets. The success of such strategies is dependent on a profound understanding of tumor cell metabolism. With new techniques it is now possible to thoroughly analyze the metabolic responses to the withdrawal of substrates and their substitution by others...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27754807/body-composition-changes-after-very-low-calorie-ketogenic-diet-in-obesity-evaluated-by-three-standardized-methods
#8
Diego Gomez-Arbelaez, Diego Bellido, Ana I Castro, Lucia Ordoñez-Mayan, Jose Carreira, Cristobal Galban, Miguel A Martinez-Olmos, Ana B Crujeiras, Ignacio Sajoux, Felipe F Casanueva
CONTEXT: A common concern when using low-calorie diets as a treatment for obesity is the reduction in fat-free mass, mostly muscular mass that occurs together with the fat mass loss, and the best methodologies to evaluate body composition changes. OBJECTIVE: To evaluate the very low-calorie-ketogenic (VLCK) diet-induced changes in body composition of obese patients and to compare three different methodologies employed to evaluate that changes. DESIGN: Twenty obese patients followed a VLCK diet for 4 months...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27699772/diet-and-headache-part-2
#9
Vincent T Martin, Brinder Vij
BACKGROUND: Comprehensive diets do not require the exclusion of a specific provocative food or ingredient, but regulate the quantities of core components of foods such as vitamins, ions, proteins, carbohydrates, and fats. OBJECTIVES: To review the evidence supporting the use of comprehensive diets in the prevention of migraine and other headache disorders and to discuss the mechanisms through which food, and ingredients within foods and beverages might trigger attacks of headache METHODS: This represents Part 2 of a narrative review of the role of diet in the prevention of migraine and other headache disorders...
October 2016: Headache
https://www.readbyqxmd.com/read/27596103/current-treatment-options-for-early-onset-pediatric-epileptic-encephalopathies
#10
REVIEW
Rolla Shbarou
The management of early-onset, genetically determined epilepsies is often challenging. First-line anti-epileptic drugs (AEDs) often include phenobarbital, phenytoin, oxcarbazepine, carbamazepine, clonazepam, levetiracetam, and valproic acid. Combinations of medications are used in these patients with often intractable seizures, and they include topiramate, clobazam, felbamate, lacosamide, lamotrigine, rufinamide, vigabatrin, ACTH, oral steroids, and the ketogenic diet. Vagus nerve stimulator therapy offers some relief in selected patients...
October 2016: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/27591681/cost-utility-analysis-of-competing-treatment-strategies-for-drug-resistant-epilepsy-in-children-with-tuberous-sclerosis-complex
#11
Aria Fallah, Alexander G Weil, Shelly Wang, Evan Lewis, Christine B Baca, Gary W Mathern
BACKGROUND: The management of drug-resistant epilepsy in children with Tuberous Sclerosis Complex (TSC) is challenging because of the multitude of treatment options, wide range of associated costs, and uncertainty of seizure outcomes. The most cost-effective approach for children whose epilepsy has failed to improve with first-line medical therapy is uncertain. METHODS: A review of MEDLINE from 1990 to 2015 was conducted. A cost-utility analysis, from a third-party payer perspective, was performed for children with drug-resistant epilepsy that had failed to improve with 2 antiseizure drugs (ASDs) and that was amenable to resective epilepsy surgery, across a time-horizon of 5years...
October 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27553113/a-practical-approach-to-ketogenic-diet-in-the-pediatric-intensive-care-unit-for-super-refractory-status-epilepticus
#12
Raquel Farias-Moeller, Luca Bartolini, Archana Pasupuleti, R D Brittany Cines, Amy Kao, Jessica L Carpenter
BACKGROUND: Super-refractory status epilepticus (SRSE) ensues when there is no improvement of seizure control in response to anesthetic therapy or seizure recurrence after reduction of anesthetic agents. There is no consensus on standard of care for SRSE. Ketogenic diet (KD) has reported success, but technical challenges exist including inability to feed patients, concomitant steroid use, acidotic states, and lack of dieticians with experience. The optimal protocol for KD is yet to be determined...
August 23, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27525031/modified-atkins-diet-in-advanced-malignancies-final-results-of-a-safety-and-feasibility-trial-within-the-veterans-affairs-pittsburgh-healthcare-system
#13
Jocelyn L Tan-Shalaby, Jennifer Carrick, Krystal Edinger, Dana Genovese, Andrew D Liman, Vida A Passero, Rashmikant B Shah
BACKGROUND: Dysfunctional mitochondrial processes limit malignant cells ability to use energy from fatty acids and ketones. Animal studies using ketogenic diets for cancer show encouraging results. We tested the diet's safety and feasibility in cancer patients across a broad variety of solid tumors. METHODS: We recruited 17 advanced cancer patients who were not on chemotherapy. They consumed 20 to 40 g of carbohydrates daily with evaluations performed weekly until week 4, then every 4 weeks until 16 weeks...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27475280/ketogenic-diet-treatment-for-pediatric-super-refractory-status-epilepticus
#14
Brian Appavu, Lisa Vanatta, John Condie, John F Kerrigan, Randa Jarrar
PURPOSE: We aimed to study whether ketogenic diet (KD) therapy leads to resolution of super-refractory status epilepticus in pediatric patients without significant harm. METHOD: A retrospective review was performed at Phoenix Children's Hospital on patients with super-refractory status epilepticus undergoing ketogenic diet therapy from 2011 to 2015. RESULTS: Ten children with super-refractory status epilepticus, ages 2-16 years, were identified...
October 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27430501/ketone-bodies-and-exercise-performance-the-next-magic-bullet-or-merely-hype
#15
Philippe J M Pinckaers, Tyler A Churchward-Venne, David Bailey, Luc J C van Loon
Elite athletes and coaches are in a constant search for training methods and nutritional strategies to support training and recovery efforts that may ultimately maximize athletes' performance. Recently, there has been a re-emerging interest in the role of ketone bodies in exercise metabolism, with considerable media speculation about ketone body supplements being routinely used by professional cyclists. Ketone bodies can serve as an important energy substrate under certain conditions, such as starvation, and can modulate carbohydrate and lipid metabolism...
July 18, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27265003/evaluation-of-non-coding-variation-in-glut1-deficiency
#16
Yu-Chi Liu, Jia Wei Audrey Lee, Susannah T Bellows, John A Damiano, Saul A Mullen, Samuel F Berkovic, Melanie Bahlo, Ingrid E Scheffer, Michael S Hildebrand
AIM: Loss-of-function mutations in SLC2A1, encoding glucose transporter-1 (GLUT-1), lead to dysfunction of glucose transport across the blood-brain barrier. Ten percent of cases with hypoglycorrhachia (fasting cerebrospinal fluid [CSF] glucose <2.2mmol/L) do not have mutations. We hypothesized that GLUT1 deficiency could be due to non-coding SLC2A1 variants. METHOD: We performed whole exome sequencing of one proband with a GLUT1 phenotype and hypoglycorrhachia negative for SLC2A1 sequencing and copy number variants...
December 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27206235/cognitive-and-behavioral-impact-of-the-ketogenic-diet-in-children-and-adolescents-with-refractory-epilepsy-a-randomized-controlled-trial
#17
Dominique M IJff, Debby Postulart, Danielle A J E Lambrechts, Marian H J M Majoie, Reina J A de Kinderen, Jos G M Hendriksen, Silvia M A A Evers, Albert P Aldenkamp
PURPOSE: The ketogenic diet (KD) is increasingly used for the treatment of refractory epilepsy in childhood because of the beneficial effect on seizure reduction. The aim of the current study was to objectively assess cognition and aspects of behavior during the first 4months of a randomized controlled study in children and adolescents. METHODS: Participants from a tertiary epilepsy center were randomized to a KD group (intervention) or a care-as-usual (CAU) group (control)...
July 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27147436/long-term-effects-of-ketogenic-diet-on-subsequent-seizure-induced-brain-injury-during-early-adulthood-relationship-of-seizure-thresholds-to-zinc-transporter-related-gene-expressions
#18
Tian Tian, Li-Li Li, Shu-Qi Zhang, Hong Ni
The divalent cation zinc is associated with cortical plasticity. However, the mechanism of zinc in the pathophysiology of cortical injury-associated neurobehavioral damage following neonatal seizures is uncertain. We have previously shown upregulated expression of ZnT-3; MT-3 in hippocampus of neonatal rats submitted to flurothyl-induced recurrent seizures, which was restored by pretreatment with ketogenic diet (KD). In this study, utilizing a novel "twist" seizure model by coupling early-life flurothyl-induced seizures with later exposure to penicillin, we further investigated the long-term effects of KD on cortical expression of zinc homeostasis-related genes in a systemic scale...
December 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27072799/gnao1-encephalopathy-further-delineation-of-a-severe-neurodevelopmental-syndrome-affecting-females
#19
Anna Marcé-Grau, James Dalton, Javier López-Pisón, María Concepción García-Jiménez, Lorena Monge-Galindo, Ester Cuenca-León, Jesús Giraldo, Alfons Macaya
BACKGROUND: De novo heterozygous mutations in the GNAO1 gene, encoding the Gα o subunit of G-proteins, are the cause of a severe neurodevelopmental disorder, featuring early infantile seizures, profound cognitive dysfunction and, occasionally, movement disorder (early infantile epileptic encephalopathy-17). METHODS: We report a further case of this association in a 20 month-old Spanish girl with neonatal-onset refractory seizures, progressive microcephaly, oral-lingual dyskinesia and nearly absent psychomotor development...
2016: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/27061881/the-effects-of-ketogenic-diet-on-the-th17-treg-cells-imbalance-in-patients-with-intractable-childhood-epilepsy
#20
Fen-Fen Ni, Cheng-Rong Li, Jian-Xiang Liao, Guo-Bing Wang, Su-Fang Lin, Yu Xia, Jia-Lun Wen
PURPOSE: The ketogenic diet (KD) is an effective treatment for intractable epilepsy (IE), however the therapeutic mechanism is still unclear. This study was designed to investigate T helper type 17/regulatory T cell (Th17/Treg) levels in children with IE and age-matched healthy controls following KD. METHOD: Circulating levels of Th17/Treg cells were analyzed by flow cytometry. Plasma concentration of interleukin (IL)-17 was measured by cytometric bead array assay...
May 2016: Seizure: the Journal of the British Epilepsy Association
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