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Ketogenic diet study group

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https://www.readbyqxmd.com/read/29605816/regulation-of-kynurenine-metabolism-by-a-ketogenic-diet
#1
Svenja Heischmann, Lindsey B Gano, Kevin Quinn, Li-Ping Liang, Jacek Klepacki, Uwe Christians, Nichole Reisdorph, Manisha Patel
Ketogenic diets (KDs) are increasingly utilized as treatments for epilepsy, other neurological diseases, and cancer. Despite their long history in suppressing seizures, the distinct molecular mechanisms of action of KDs are still largely unknown. The goal of this study was to identify key metabolites and pathways altered in hippocampus and plasma of rats fed a KD vs. control diet either ad libitum or calorically restricted to 90% of the recommended intake. This was accomplished using a combination of targeted methods and untargeted mass spectrometry-based metabolomics analyses...
March 31, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29588960/the-relationship-between-d-beta-hydroxybutyrate-blood-concentrations-and-seizure-control-in-children-treated-with-the-ketogenic-diet-for-medically-intractable-epilepsy
#2
Jeffrey R Buchhalter, Sabrina D'Alfonso, Mary Connolly, Ernest Fung, Aspasia Michoulas, David Sinasac, Rachel Singer, Jacklyn Smith, Narender Singh, Jong M Rho
Objective: The ketogenic diet (KD) is a proven treatment for drug-resistant (DR) seizures in children and adolescents. However, the relationship between seizure control and the most commonly measured metabolite of the diet, the ketone body d-beta-hydroxybutyrate (D-BHB), is controversial. This study was performed to clarify the relationship because specific ketone bodies may be useful as biomarkers of diet efficacy. Methods: Families of children with DR seizures were approached for participation in this open-label, prospective study when they were referred for the KD at two western Canadian children's hospitals...
September 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29570799/ketogenic-diet-based-on-extra-virgin-coconut-oil-has-no-effects-in-young-wistar-rats-with-pilocarpine-induced-epilepsy
#3
Isabelle T Melo, Elisabete M Rêgo, Nassib B Bueno, Tâmara C Gomes, Suzana L Oliveira, Euclides M Trindade-Filho, Cyro R Cabral-Jr, Tacy S Machado, Jaqueline A Galvão, Terezinha R Ataide
This study evaluated the effects of a ketogenic diet (KD) based on extra virgin coconut oil (Cocos nucifera L., VCO), on the treatment of epileptic rats. Two sets of experiments were conducted. First, male Wistar rats underwent induction of status epilepticus (SE) with the administration of pilocarpine intraperitoneally 21 animals reached spontaneous recurrent seizures (SRS) and were randomly allocated to the dietary regimens and video-monitored for 19 days. In the second experiment, 24 animals were randomized immediately after the induction of SE and followed for 67 days...
March 23, 2018: Lipids
https://www.readbyqxmd.com/read/29546295/indispensable-amino-acid-deficient-diets-induce-seizures-in-ketogenic-diet-fed-rodents-demonstrating-a-role-for-amino-acid-balance-in-dietary-treatments-for-epilepsy
#4
Dorothy W Gietzen, Sarah H Lindström, James W Sharp, Pok Swee Teh, Michael J Donovan
Background: Low protein amounts are used in ketogenic diets (KDs), where an essential (indispensable) amino acid (IAA) can become limiting. Because the chemically sensitive, seizurogenic, anterior piriform cortex (APC) is excited by IAA limitation, an imbalanced KD could exacerbate seizure activity. Objective: We questioned whether dietary IAA depletion worsens seizure activity in rodents fed KDs. Methods: In a series of 6 trials, male rats or gerbils of both sexes (6-8/group) were given either control diets (CDs) appropriate for each trial, a KD, or a threonine-devoid (ThrDev) diet for ≥7 d, and tested for seizures using various stimuli...
March 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29391903/efficacy-of-a-ketogenic-diet-with-concomitant-intranasal-perillyl-alcohol-as-a-novel-strategy-for-the-therapy-of-recurrent-glioblastoma
#5
Juliana Guimarães Santos, Wanise Maria Souza Da Cruz, Axel H Schönthal, Marcela D'alincourt Salazar, Cristina Asvolinsque Pantaleão Fontes, Thereza Quirico-Santos, Clovis Orlando Da Fonseca
It has been hypothesized that persistent ketotic hypoglycemia represents a potential therapeutic strategy against high-grade gliomas. Perillyl alcohol (POH) is a non-toxic, naturally-occurring, hydroxylated monoterpene that exhibits cytotoxicity against temozolomide-resistant glioma cells, regardless of O6-methylguanine-methyltransferase promoter methylation status. The present study aimed to evaluate the toxicity and therapeutic efficacy of intranasal POH when administered in combination with a ketogenic diet (KD) program for the treatment of patients with recurrent glioblastoma...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29193044/accumulation-of-rest-deficiency-precedes-sudden-death-of-epileptic-kv1-1-knockout-mice-a-model-of-sudden-unexpected-death-in-epilepsy
#6
Shruthi H Iyer, Stephanie A Matthews, Timothy A Simeone, Rama Maganti, Kristina A Simeone
OBJECTIVE: Chronic sleep deficiency is associated with early mortality. In the epileptic population, there is a higher prevalence of sleep disorders, and individuals with severe refractory epilepsy are at greater risk of premature mortality than the general population. Sudden unexpected death in epilepsy affects 1:1000 cases of epilepsy each year. Ketogenic diet (KD) treatment is one of the few effective options for refractory seizures. Despite KD reducing seizures and increasing longevity in Kv1...
January 2018: Epilepsia
https://www.readbyqxmd.com/read/29069983/short-term-and-long-term-efficacy-of-classical-ketogenic-diet-and-modified-atkins-diet-in-children-and-adolescents-with-epilepsy-a-systematic-review-and-meta-analysis
#7
Shahabeddin Rezaei, Ahmed Abdulahi Abdurahman, Amene Saghazadeh, Reza Shervin Badv, Maryam Mahmoudi
OBJECTIVES: Classical ketogenic diet (KD) and modified Atkins diet (MAD) are two types of KD commonly used for the treatment of intractable epilepsy throughout the world. Studies have shown the efficacy of these diets. However, no systematic review and meta-analysis study has to date compared the efficacy of KD and MAD in a time trend. Therefore, the objectives of the present study were to compare the short-term and long-term efficacy of classical KD and MAD in children and adolescents with epilepsy and to determine the efficacy of classical KD and MAD at multiple time points and in a time trend...
October 25, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29056525/ketogenic-diet-attenuates-neuronal-injury-via-autophagy-and-mitochondrial-pathways-in-pentylenetetrazol-kindled-seizures
#8
Bao-Hui Wang, Qun Hou, Yu-Qiang Lu, Meng-Meng Jia, Tao Qiu, Xiao-Hang Wang, Zheng-Xiang Zhang, Yan Jiang
Autophagy alterations have been observed in a variety of neurological disorders, however, very few studies have focused on autophagy alterations in epilepsy. The ketogenic diet (KD) likely ameliorates neuronal loss in several seizure models. However, whether this neuroprotective function occurs via starvation-induced autophagy and its prevalence in chronic kindled seizures remains unknown. The aim of this study was to determine the role of autophagy following seizure under KD, and the potential mechanism involved...
January 1, 2018: Brain Research
https://www.readbyqxmd.com/read/29046197/-prospective-study-of-ketogenic-diet-in-treatment-of-children-with-global-developmental-delay
#9
RANDOMIZED CONTROLLED TRIAL
Deng-Na Zhu, Ping Li, Jun Wang, Jun-Ying Yuan, Guang-Yu Zhang, Jiang-Fang Liang, Ming-Mei Wang, Yun-Xia Zhao, Shuang An, Na Ma, Dan-Dan Ma
OBJECTIVE: To study the effect of ketogenic diet (KD) on neurobehavioral development, emotional and social behaviors, and life ability in children with global developmental delay (GDD). METHODS: A prospective case-control study was performed for hospitalized children with GDD, who were randomly divided into KD treatment group (n=40) and conventional treatment group (n=37). The children in both groups were given comprehensive rehabilitation training, and those in the KD treatment group were given modified Atkins diet in addition to the comprehensive rehabilitation training...
October 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29024787/ketogenic-metabolism-inhibits-histone-deacetylase-hdac-and-reduces-oxidative-stress-after-spinal-cord-injury-in-rats
#10
Xiaomeng Wang, Xiaoliang Wu, Qi Liu, Ganggang Kong, Jian Zhou, Jie Jiang, Xiuhua Wu, Zhiping Huang, Wanhan Su, Qingan Zhu
The aim of this study is to investigate the effect of ketogenic metabolism, induced by different diet interventions, on histone acetylation and its potential antioxidant capacity to injured spinal cord tissue in rats. 72 male Sprague-Dawley rats were randomly divided into 4 groups, fed with ketogenic diet (KD), every other day fasting (EODF), every other day ketogenic diet (EODKD) and standard diet (SD) respectively for 2 weeks. β-Hydroxybutyrate (βOHB) concentration was measured both in serum and cerebrospinal fluid (CSF)...
December 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28914421/acid-base-safety-during-the-course-of-a-very-low-calorie-ketogenic-diet
#11
Diego Gomez-Arbelaez, Ana B Crujeiras, Ana I Castro, Albert Goday, Antonio Mas-Lorenzo, Ana Bellon, Cristina Tejera, Diego Bellido, Cristobal Galban, Ignacio Sajoux, Patricio Lopez-Jaramillo, Felipe F Casanueva
BACKGROUND AND AIMS: Very low-calorie ketogenic (VLCK) diets have been consistently shown to be an effective obesity treatment, but the current evidence for its acid-base safety is limited. The aim of the current work was to evaluate the acid-base status of obese patients during the course of a VLCK diet. METHOD: Twenty obese participants undertook a VLCK diet for 4 months. Anthropometric and biochemical parameters, and venous blood gases were obtained on four subsequent visits: visit C-1 (baseline); visit C-2, (1-2 months); maximum ketosis; visit C-3 (2-3 months), ketosis declining; and visit C-4 at 4 months, no ketosis...
October 2017: Endocrine
https://www.readbyqxmd.com/read/28808808/ketogenic-diet-versus-gluten-free-casein-free-diet-in-autistic-children-a-case-control-study
#12
Omnia El-Rashidy, Farida El-Baz, Yasmin El-Gendy, Randa Khalaf, Dina Reda, Khaled Saad
Many diet regimens were studied for patients with autism spectrum disorder (ASD) over the past few years. Ketogenic diet is gaining attention due to its proven effect on neurological conditions like epilepsy in children. Forty-five children aged 3-8 years diagnosed with ASD based on DSM-5 criteria were enrolled in this study. Patients were equally divided into 3 groups, first group received ketogenic diet as modified Atkins diet (MAD), second group received gluten free casein free (GFCF) diet and the third group received balanced nutrition and served as a control group...
December 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28706467/ketogenic-diet-benefits-body-composition-and-well-being-but-not-performance-in-a-pilot-case-study-of-new-zealand-endurance-athletes
#13
Caryn Zinn, Matthew Wood, Mikki Williden, Simon Chatterton, Ed Maunder
BACKGROUND: Low-carbohydrate, high-fat and ketogenic diets are increasingly adopted by athletes for body composition and sports performance enhancements. However, as yet, there is no consensus on their efficacy in improving performance. There is also no comprehensive literature on athletes' experiences while undertaking this diet. The purpose of this pilot work was two-fold: i. to examine the effects of a non-calorie controlled ketogenic diet on body composition and performance outcomes of endurance athletes, and ii...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28687854/neuroprotective-effects-of-vitamin-d-alone-or-in-combination-with-lamotrigine-against-lithium-pilocarpine-model-of-status-epilepticus-in-rats
#14
Amal M Mahfoz, Ali F Abdel-Wahab, Mohamed A Afify, Naiyer Shahzad, Ibrahim A A Ibrahim, Naser A ElSawy, Ghazi A Bamagous, Saeed S Al Ghamdi
Status epilepticus (SE) is considered one of the major serious forms of epilepsy with high mortality rate. Since the currently available antiepileptic drugs have low efficacy and high adverse effects, new more efficient and safe therapies are critically needed. There is increasing evidence supporting dietary and alternative therapies for epilepsy, including the ketogenic diet, modified Atkins diet, and omega-3 fatty acids. Recent studies have shown significant prophylactic and therapeutic potential of vitamin D (vit-D) use in many neurological disorders...
October 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28683591/the-ketone-metabolite-%C3%AE-hydroxybutyrate-attenuates-oxidative-stress-in-spinal-cord-injury-by-suppression-of-class-i-histone-deacetylases
#15
Ganggang Kong, Zucheng Huang, Wei Ji, Xiaomeng Wang, Junhao Liu, Xiuhua Wu, Zhiping Huang, Rong Li, Qingan Zhu
The ketone metabolite β-hydroxybutyrate (βOHB), is reported to be neuroprotective after spinal cord injury (SCI) in rats, but the underlying mechanism remains unknown. The present study aims to investigate effects of βOHB on suppression of oxidative stress and inhibition of class I histone deacetylases (HDACs) in in vivo and in vitro models. Rats were fed with ketogenic diet (KD) or standard diet (SD) for 3 weeks. A C5 hemi-contusion injury was applied to these animals on the 14th day of experiment, and spinal cord samples were harvested on the 1st, 3rd and 7th days after SCI, respectively...
September 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28672997/anticonvulsant-effect-of-exogenous-%C3%AE-hydroxybutyrate-on-kainic-acid-induced-epilepsy
#16
Jianping Si, Shaohui Wang, Ning Liu, Xiaofei Yang, Ying Wang, Ling Li, Jiwen Wang, Xin Lv
The present study aimed to investigate the anticonvulsant effects of β-hydroxybutyrate (BHB) in a kainic acid (KA)-induced rat seizure model. The concentrations of BHB and glucose were detected in the blood prior to exogenous BHB administration. Three different doses of BHB (2, 4 and 8 mmol/kg) were then injected into male Wistar rats intraperitoneally, and the concentrations of BHB and glucose in the blood were detected. Rats received 0.9% normal saline intraperitoneally at a dose of 4 ml/kg as a control...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28604374/a-very-low-calorie-ketogenic-diet-improves-weight-loss-and-quality-of-life-in-patients-with-adjustable-gastric-banding
#17
Marina Taus, Daniele Fumelli, Debora Busni, Francesca Borroni, Sonia Sebastianelli, Giulia Nicolai, Albano Nicolai
BACKGROUND: Often, in severe obesity, diet and physical activity are not enough to achieve a healthy BMI. Bariatric surgical approach, in particular laparoscopic adjustable gastric banding (LAGB), has encouraging results in terms of weight loss and resolution of obesity-related comorbidities. However, several months after LAGB, some patients are enable to lose weight anymore and don't tolerate a further calibration because of its collateral effects (excessive sense of fullness, heartburn, regurgitation and vomiting)...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28555095/nutritional-ketosis-affects-metabolism-and-behavior-in-sprague-dawley-rats-in-both-control-and-chronic-stress-environments
#18
Milene L Brownlow, Seung H Jung, Raquel J Moore, Naomi Bechmann, Ryan Jankord
Nutritional ketosis may enhance cerebral energy metabolism and has received increased interest as a way to improve or preserve performance and resilience. Most studies to date have focused on metabolic or neurological disorders while anecdotal evidence suggests that ketosis may enhance performance in the absence of underlying dysfunction. Moreover, decreased availability of glucose in the brain following stressful events is associated with impaired cognition, suggesting the need for more efficient energy sources...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28521671/the-anticonvulsant-effects-of-ketogenic-diet-on-epileptic-seizures-and-potential-mechanisms
#19
Yifan Zhang, Jingwei Xu, Kun Zhang, Wei Yang, Bingjin Li
BACKGROUND: Epilepsy is a syndrome of brain dysfunction induced by the aberrant excitability of certain neurons. Despite advances in surgical technique and anti-epileptic drug in recent years, recurrent epileptic seizures remain intractable and lead to a serious morbidity in the world. The ketogenic diet refers to a high-fat, low-carbohydrate and adequate-protein diet. Currently, its beneficial effects on epileptic seizure reduction have been well established. However, the detailed mechanisms underlying the anti-epileptic effects of ketogenic diet are still poorly understood...
2018: Current Neuropharmacology
https://www.readbyqxmd.com/read/28521067/antiepileptic-drugs-for-the-treatment-of-infants-with-severe-myoclonic-epilepsy
#20
REVIEW
Francesco Brigo, Stanley C Igwe, Nicola Luigi Bragazzi
BACKGROUND: This is an updated version of the original Cochrane review published in 2015, Issue 10.Severe myoclonic epilepsy in infants (SMEI), also known as Dravet syndrome, is a rare, refractory form of epilepsy, for which stiripentol (STP) has been recently licensed as add-on therapy. OBJECTIVES: To evaluate the efficacy and tolerability of STP and other antiepileptic drug treatments (including ketogenic diet) for patients with SMEI. SEARCH METHODS: For the latest update we searched the Cochrane Epilepsy Group Specialized Register (20 December 2016), the Cochrane Central Register of Controlled Trials (CENTRAL) via the Cochrane Register of Studies Online (CRSO, 20 December 2016), MEDLINE (Ovid, 1946 to 20 December 2016) and ClinicalTrials...
May 18, 2017: Cochrane Database of Systematic Reviews
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