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Beta-hydroxybutyrate

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https://www.readbyqxmd.com/read/29910305/the-three-month-effects-of-a-ketogenic-diet-on-body-composition-blood-parameters-and-performance-metrics-in-crossfit-trainees-a-pilot-study
#1
Wesley C Kephart, Coree D Pledge, Paul A Roberson, Petey W Mumford, Matthew A Romero, Christopher B Mobley, Jeffrey S Martin, Kaelin C Young, Ryan P Lowery, Jacob M Wilson, Kevin W Huggins, Michael D Roberts
Adopting low carbohydrate, ketogenic diets remains a controversial issue for individuals who resistance train given that this form of dieting has been speculated to reduce skeletal muscle glycogen levels and stifle muscle anabolism. We sought to characterize the effects of a 12-week ketogenic diet (KD) on body composition, metabolic, and performance parameters in participants who trained recreationally at a local CrossFit facility. Twelve participants (nine males and three females, 31 ± 2 years of age, 80...
January 9, 2018: Sports (Basel)
https://www.readbyqxmd.com/read/29907969/physiological-and-behavioural-responses-of-grazing-dairy-cows-to-an-acute-metabolic-challenge
#2
Esther Müller, Andreas Münger, Roi Mandel, Lukas Eggerschwiler, Ann-Catherine Schwinn, Josef J Gross, Rupert M Bruckmaier, H Dieter Hess, Frigga Dohme-Meier
Due to seasonal changes in the quality and quantity of herbage, the nutrient supply to grazing dairy cows is not always sufficient, which may increase their metabolic load. To investigate the temporal pattern of behavioural changes in relation to concomitant metabolic alterations, we subjected 15 multiparous early lactating Holstein dairy cows (24 (SD 7.4) days in milk) to a short-term metabolic challenge, which we provoked by abruptly withdrawing concentrate for 1 week. Cows grazed full-time and were supplemented with concentrate in experimental week (EW) 1 and EW 3, whereas concentrate was withdrawn in EW 2...
June 15, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29904341/medium-chain-fatty-acids-beta-hydroxybutyric-acid-and-genetic-modulation-of-the-carnitine-shuttle-are-protective-in-a-drosophila-model-of-als-based-on-tdp-43
#3
Ernesto Manzo, Abigail G O'Conner, Jordan M Barrows, Dakotah D Shreiner, Gabriel J Birchak, Daniela C Zarnescu
ALS patients exhibit dyslipidemia, hypermetabolism and weight loss; in addition, cellular energetics deficits have been detected prior to denervation. Although evidence that metabolism is altered in ALS is compelling, the mechanisms underlying metabolic dysregulation and the contribution of altered metabolic pathways to disease remain poorly understood. Here we use a Drosophila model of ALS based on TDP-43 that recapitulates hallmark features of the disease including locomotor dysfunction and reduced lifespan...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29868171/survey-of-ketolactia-determining-the-main-predisposing-management-factors-and-consequences-in-hungarian-dairy-herds-by-using-a-cow-side-milk-test
#4
Péter Hejel, Gerhard Zechner, Csaba Csorba, László Könyves
The aims of the survey were to determine the prevalence of ketosis in dairy herds by measuring the concentration of beta-hydroxybutyrate (BHBA) in milk by Keto-Test (Sanwa Kagaku Kenkyusho, Nagoya, Japan); risk factors and the relationship with postpartum diseases were investigated. 1667 early lactating (days in milk 0-75) cows were tested in 52 dairy herds in 2013 and 2014 years. In total, 29.3 per cent of samples were positive (BHBAMILK ≥100 µmol/l), including 3.7 per cent high positives (BHBAMILK ≥500 µmol/l)...
2018: Veterinary Record Open
https://www.readbyqxmd.com/read/29727818/efficacy-and-safety-of-ketogenic-diet-for-treatment-of-pediatric-convulsive-refractory-status-epilepticus
#5
Ravindra Arya, Katrina Peariso, Marina Gaínza-Lein, Jessica Harvey, Ann Bergin, J Nicholas Brenton, Brian T Burrows, Tracy Glauser, Howard P Goodkin, Yi-Chen Lai, Mohamad A Mikati, Iván Sánchez Fernández, Dmitry Tchapyjnikov, Angus A Wilfong, Korwyn Williams, Tobias Loddenkemper
PURPOSE: To describe the efficacy and safety of ketogenic diet (KD) for convulsive refractory status epilepticus (RSE). METHODS: RSE patients treated with KD at the 6/11 participating institutions of the pediatric Status Epilepticus Research Group from January-2011 to December-2016 were included. Patients receiving KD prior to the index RSE episode were excluded. RSE was defined as failure of ≥2 anti-seizure medications, including at least one non-benzodiazepine drug...
August 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29716779/effect-of-maternal-metabolism-on-fetal-supply-glucose-non-esterified-fatty-acids-and-beta-hydroxybutyrate-concentrations-in-canine-maternal-serum-and-fetal-fluids-at-term-pregnancy
#6
Orsolya Balogh, Rupert Bruckmaier, Stefanie Keller, Iris Margaret Reichler
The progressive adaptations in carbohydrate and lipid metabolism during canine pregnancy are reflected in the concentrations of glucose, non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHB). The levels of these metabolites in the bitch likely affect fetal concentrations and the composition of amniotic and allantoic fluids (AMF and ALF, respectively). We studied 31 canine parturitions (Cesarean sections) and found that glucose, NEFA and BHB concentrations were significantly higher in maternal serum than in AMF or ALF...
April 20, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29657405/immunomodulatory-effects-of-probiotics-and-prilled-fat-supplementation-on-immune-genes-expression-and-lymphocyte-proliferation-of-transition-stage-karan-fries-cows
#7
Meeti Punetha, A K Roy, H M Ajithakumar, Irshad Ahmed Para, Deepanshu Gupta, Mahendra Singh, Jaya Bharati
Background and Aim: Probiotics are the living microorganism which when administered improves the digestion and health of the animal. Saccharomyces cerevisiae (SC) improves the humoral and innate immunity of the animal. Prilled fat is a hydrogenated palm oil triglyceride which has been reported to promote the release of cytokines from macrophages. The aim of the study was to evaluate the immunomodulatory effect of probiotic and prilled fat during transition stage in Karan Fries (KF) cows...
February 2018: Veterinary World
https://www.readbyqxmd.com/read/29625019/beta-hydroxybutyrate-infusion-identifies-acute-differentially-expressed-genes-related-to-metabolism-and-reproduction-in-the-hypothalamus-and-pituitary-of-sheep
#8
Emily R Cope, Brynn H Voy, Brian K Whitlock, Meg Staton, Thomas Lane, Jack Davitt, J Travis Mulliniks
To identify molecular pathways of metabolic imbalances and reproduction, 10 castrated male sheep were randomly assigned to be injected into the lateral ventricle through intracerebroventricular cannulas with 1 mL of β-hydroxybutyric acid sodium salt solution (BHB; 12,800 µmol/L) or saline solution (CON; 0.9% NaCl). Approximately two hours post injection, sheep were humanely euthanized, and hypothalamus and pituitary tissues were harvested for transcriptome characterization using RNA-sequencing. Ribonucleic acid (RNA) was extracted from the hypothalamus and pituitary and sequenced at a high depth (Hypothalamus: 468,912,732 reads; Pituitary: 515,106,092 reads) using the Illumina Hi-Seq 2500 platform and aligned to Bos taurus and Ovis aries genomes...
April 6, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29623227/fulminant-diabetes-in-a-patient-with-advanced-melanoma-on-nivolumab
#9
Nora Chokr, Hafsa Farooq, Elizabeth Guadalupe
Background: Anti-PD-1 agents were approved for advanced melanoma after the landmark trial Checkmate-037. Anti-PD-1 agents can breach immunologic tolerance. Fulminant diabetes is an immune endocrinopathy that results from a violent immune attack leading to complete destruction of pancreatic beta cells in genetically predisposed people. We present a rare case of fulminant diabetes precipitated by anti-PD-1 immunotherapy. Case: A 61-year-old male with advanced melanoma presented with a three-day history of nausea, vomiting, and malaise...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29600506/prediabetes-directly-deteriorates-into-diabetic-ketoacidosis-and-hyperosmolar-hyperglycemic-syndrome-triggered-by-acute-pancreatitis-a-case-report-illustrating-a-chicken-and-egg-paradigm-in-ketosis-prone-diabetes
#10
Runbo Song, Shanjin Cao
INTRODUCTION: Diabetic crises occur most often in patients with type 1 diabetes and occasionally in type 2 diabetes, especially under stressful conditions. However, a diabetic crisis occurring directly from prediabetes is an unusual phenomenon. CASE REPORT: A 45-year-old woman presented with postprandial left upper quadrant abdominal pain, nausea, and vomiting. She had a past medical history of prediabetes with impaired fasting glucose and HbA1c 6.4%. On admission, routine laboratory tests showed high anion gap metabolic acidosis (pH 6...
March 29, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29588985/ketogenic-parenteral-nutrition-in-17-pediatric-patients-with-epilepsy
#11
Anastasia Dressler, Nadja Haiden, Petra Trimmel-Schwahofer, Franz Benninger, Sharon Samueli, Gudrun Gröppel, Sina Spatzierer, Angelika Mühlebner, Klaus Abraham, Martha Feucht
Objective: Ketogenic parenteral nutrition (kPN) is indicated when enteral intake is temporarily limited or impossible, but evidence-based prescriptions are lacking. Objective was to evaluate the efficacy and safety of kPN in children with epileptic encephalopathies using a new computer-based algorithm for accurate component calculating. Methods: Children with epilepsy receiving kPN were included. A computer-based algorithm was established on the basis of guidelines of the European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN): fat intake not exceeding 4 g/kg/day, age-adequate supply of protein, electrolytes, vitamins, and trace elements, but reduced carbohydrates...
March 2018: Epilepsia open
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
#12
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/29576959/the-use-of-nutritional-supplements-to-induce-ketosis-and-reduce-symptoms-associated-with-keto-induction-a-narrative-review
#13
Cliff J D C Harvey, Grant M Schofield, Micalla Williden
Background: Adaptation to a ketogenic diet (keto-induction) can cause unpleasant symptoms, and this can reduce tolerability of the diet. Several methods have been suggested as useful for encouraging entry into nutritional ketosis (NK) and reducing symptoms of keto-induction. This paper reviews the scientific literature on the effects of these methods on time-to-NK and on symptoms during the keto-induction phase. Methods: PubMed, Science Direct, CINAHL, MEDLINE, Alt Health Watch, Food Science Source and EBSCO Psychology and Behavioural Sciences Collection electronic databases were searched online...
2018: PeerJ
https://www.readbyqxmd.com/read/29520223/anxiolytic-effect-of-exogenous-ketone-supplementation-is-abolished-by-adenosine-a1-receptor-inhibition-in-wistar-albino-glaxo-rijswijk-rats
#14
Zsolt Kovács, Dominic P D'Agostino, Csilla Ari
Anxiety disorders are one of the most common mental health problems worldwide, but the exact pathophysiology remains largely unknown. It has been demonstrated previously that administration of exogenous ketone supplement KSMCT (ketone salt/KS + medium chain triglyceride/MCT oil) by intragastric gavage for 7 days decreased the anxiety level in genetically absence epileptic Wistar Albino Glaxo/Rijswijk (WAG/Rij) rats. To investigate the potential role of the adenosinergic system in the pathomechanism of anxiety we tested whether the inhibition of adenosine A1 receptors (A1 Rs) influence the anxiolytic effect of the exogenous ketone supplement...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29518709/metabolic-predictors-of-peri-partum-diseases-and-their-association-with-parity-in-dairy-cows
#15
Gretel Ruprechter, Maria de Lourdes Adrien, Alejandro Larriestra, Otavio Meotti, Chester Batista, Ana Meikle, Mirela Noro
The predictive values of plasma non-esterified fatty acid (NEFA), beta-hydroxybutyrate (BHB), cholesterol, albumin and calcium to predict risk of peripartum diseases in primiparous (PP) and multiparous (MP) Holstein cows was investigated. Besides it was assessed if the health status interacted with parity on body condition score and metabolic profiles during the transition period. Dairy cows (126 PP and 182 MP) from a commercial dairy free stall herd (loose-housing system) were weekly body condition scored and tail bled for metabolites determination from -3 to +4 weeks relative to calving...
February 19, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29513157/use-of-lispro-insulin-for-treatment-of-diabetic-ketoacidosis-in-cats
#16
Eleonora Malerba, Michela Mazzarino, Francesca Del Baldo, Sara Corradini, Gaia Carotenuto, Massimo Giunti, Federico Fracassi
Objectives The aim of this study was to evaluate the efficacy and safety of lispro insulin for the treatment of feline diabetic ketoacidosis (DKA). Times to resolution of hyperglycaemia, ketosis and acidosis were compared between cats treated with continuous rate infusion (CRI) of lispro insulin and cats treated with CRI of regular insulin. Methods Client-owned cats with naturally occurring DKA, newly diagnosed with diabetes mellitus (DM) or already receiving treatment for DM, were included. Diagnosis of DKA involved the presence of at least two clinical signs consistent with DKA (eg, polyuria/polydipsia, anorexia, severe lethargy, vomiting and dehydration), blood glucose (BG) concentration >13...
March 1, 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29446830/prior-ingestion-of-exogenous-ketone-monoester-attenuates-the-glycaemic-response-to-an-oral-glucose-tolerance-test-in-healthy-young-individuals
#17
Étienne Myette-Côté, Helena Neudorf, Hossein Rafiei, Kieran Clarke, Jonathan Peter Little
KEY POINTS: The recent development of exogenous ketone supplements allows direct testing of the metabolic effects of elevated blood ketones without the confounding influence of widespread changes experienced with ketogenic diets or prolonged fasting. In the present study, we determined the effect of (R)-3-hydroxybutyl (R)-3-hydroxybutyrate ketone monoester on the glycaemic response and insulin sensitivity index during a 2 h oral glucose tolerance test (OGTT) in humans. The results obtained show that consuming a ketone monoester supplement 30 min prior to an OGTT reduced the glycaemic response and markers of insulin sensitivity without affecting insulin secretion...
April 15, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29385490/serum-and-plasma-metabolites-associated-with-postpartum-ovulation-and-pregnancy-risks-in-suckled-beef-cows-subjected-to-artificial-insemination
#18
S L Hill, K C Olson, J R Jaeger, J S Stevenson
Two experiments were conducted to determine relationships of blood metabolite concentrations, BW, BCS, and rump fat depth with postpartum ovulation and pregnancy risks, as well as their utility in predicting those outcomes in suckled beef cows. In experiment 1, plasma glucose collected 10 and 3 d before AI of suckled beef cows at seven locations did not differ between cows that had resumed estrous cycles (ovulated) before AI compared with anovulatory cows, whereas plasma glucose 3 d before AI was greater (P < 0...
February 15, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29385067/sensing-technologies-for-detection-of-acetone-in-human-breath-for-diabetes-diagnosis-and-monitoring
#19
REVIEW
Valentine Saasa, Thomas Malwela, Mervyn Beukes, Matlou Mokgotho, Chaun-Pu Liu, Bonex Mwakikunga
The review describes the technologies used in the field of breath analysis to diagnose and monitor diabetes mellitus. Currently the diagnosis and monitoring of blood glucose and ketone bodies that are used in clinical studies involve the use of blood tests. This method entails pricking fingers for a drop of blood and placing a drop on a sensitive area of a strip which is pre-inserted into an electronic reading instrument. Furthermore, it is painful, invasive and expensive, and can be unsafe if proper handling is not undertaken...
January 31, 2018: Diagnostics
https://www.readbyqxmd.com/read/29378735/new-onset-diabetes-after-nivolumab-treatment
#20
Ricardo Capitao, Carlos Bello, Ricardo Fonseca, Catarina Saraiva
The authors describe a case of a life-threatening diabetic emergency 25 days after initiation of nivolumab (3 mg/kg) for stage 4 lung adenocarcinoma. She was admitted to the emergency department, with hyperglycaemia-related signs and symptoms, such as polyuria, polydipsia, weight loss, confusion, asthenia, dehydration, hypotension and Kussmaul respiratory pattern. Her body mass index was 21.9 kg/m2 and she did not show acanthosis nigricans. Arterial blood gas determination revealed high anion gap metabolic acidaemia and blood tests showed hyperglycaemia (1060 mg/dL), hyperketonaemia (beta-hydroxybutyrate: 6...
January 29, 2018: BMJ Case Reports
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