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Ketosis

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https://www.readbyqxmd.com/read/28820963/ketone-body-acetoacetate-buffers-methylglyoxal-via-a-non-enzymatic-conversion-during-diabetic-and-dietary-ketosis
#1
Trine Salomón, Christian Sibbersen, Jakob Hansen, Dieter Britz, Mads Vandsted Svart, Thomas Schmidt Voss, Niels Møller, Niels Gregersen, Karl Anker Jørgensen, Johan Palmfeldt, Thomas Bjørnskov Poulsen, Mogens Johannsen
The α-oxoaldehyde methylglyoxal is a ubiquitous and highly reactive metabolite known to be involved in aging- and diabetes-related diseases. If not detoxified by the endogenous glyoxalase system, it exerts its detrimental effects primarily by reacting with biopolymers such as DNA and proteins. We now demonstrate that during ketosis, another metabolic route is operative via direct non-enzymatic aldol reaction between methylglyoxal and the ketone body acetoacetate, leading to 3-hydroxyhexane-2,5-dione. This novel metabolite is present at a concentration of 10%-20% of the methylglyoxal level in the blood of insulin-starved patients...
August 17, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28811858/effectiveness-of-ipragliflozin-for-reducing-hemoglobin-a1c-in-patients-with-a-shorter-type-2-diabetes-duration-interim-report-of-the-assign-k-study
#2
Kotaro Iemitsu, Takehiro Kawata, Takashi Iizuka, Masahiro Takihata, Masahiko Takai, Shigeru Nakajima, Nobuaki Minami, Shinichi Umezawa, Akira Kanamori, Hiroshi Takeda, Shogo Ito, Taisuke Kikuchi, Hikaru Amemiya, Mizuki Kaneshiro, Atsuko Mokubo, Tetsuo Takuma, Hideo Machimura, Keiji Tanaka, Taro Asakura, Akira Kubota, Sachio Aoyanagi, Kazuhiko Hoshino, Masashi Ishikawa, Yoko Matsuzawa, Mitsuo Obana, Nobuo Sasai, Hideaki Kaneshige, Fuyuki Minagawa, Tatsuya Saito, Kazuaki Shinoda, Masaaki Miyakawa, Yasushi Tanaka, Yasuo Terauchi, Ikuro Matsuba
BACKGROUND: Ipragliflozin is a selective sodium glucose co-transporter 2 inhibitor. The ASSIGN-K study is investigating the efficacy and safety of ipragliflozin for type 2 diabetes mellitus (T2DM) in the real-world clinical setting. METHODS: Japanese T2DM patients with inadequate glycemic control despite diet and exercise with/without pharmacotherapy were enrolled in an investigator-driven, multicenter, prospective, observational study examining the efficacy and safety of ipragliflozin treatment (50 mg/day for 52 weeks)...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28790891/adenosine-a1-receptor-antagonism-abolished-the-anti-seizure-effects-of-exogenous-ketone-supplementation-in-wistar-albino-glaxo-rijswijk-rats
#3
Zsolt Kovács, Dominic P D'Agostino, Arpád Dobolyi, Csilla Ari
The state of therapeutic ketosis can be achieved by using the ketogenic diet (KD) or exogenous ketone supplementation. It was suggested previously that the adenosinergic system may be involved in the mediating effect of KD on suppressing seizure activity in different types of epilepsies, likely by means of adenosine A1 receptors (A1Rs). Thus, we tested in the present study whether exogenous ketone supplements (ketone ester: KE, 2.5 g/kg/day; ketone salt/KS + medium chain triglyceride/MCT: KSMCT, 2.5 g/kg/day) applied sub-chronically (for 7 days) by intragastric gavage can modulate absence epileptic activity in genetically absence epileptic Wistar Albino Glaxo/Rijswijk (WAG/Rij) rats...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28755933/deviations-in-behavior-and-productivity-data-before-diagnosis-of-health-disorders-in-cows-milked-with-an-automated-system
#4
M T M King, K M Dancy, S J LeBlanc, E A Pajor, T J DeVries
To explore potential changes in behavior and productivity useful for early detection of health disorders in cows milked with automated milking systems (AMS), we collected longitudinal data throughout lactation of 57 dairy cows housed in a freestall barn with an AMS. Health problems were recorded, including subclinical ketosis (SCK; n = 19), metritis (n = 11), hoof disorders (n = 14), pneumonia (n = 7), and displaced abomasum (DA; n = 5). Data on rumination, activity, milking frequency and yield, and lying behavior were recorded electronically...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28752049/beta-adrenergic-receptors-are-critical-for-weight-loss-but-not-for-other-metabolic-adaptations-to-the-consumption-of-a-ketogenic-diet-in-male-mice
#5
Nicholas Douris, Bhavna N Desai, Ffolliott M Fisher, Theodore Cisu, Alan J Fowler, Eleen Zarebidaki, Ngoc Ly T Nguyen, Donald A Morgan, Timothy J Bartness, Kamal Rahmouni, Jeffrey S Flier, Eleftheria Maratos-Flier
OBJECTIVE: We have previously shown that the consumption of a low-carbohydrate ketogenic diet (KD) by mice leads to a distinct physiologic state associated with weight loss, increased metabolic rate, and improved insulin sensitivity [1]. Furthermore, we identified fibroblast growth factor 21 (FGF21) as a necessary mediator of the changes, as mice lacking FGF21 fed KD gain rather than lose weight [2]. FGF21 activates the sympathetic nervous system (SNS) [3], which is a key regulator of metabolic rate...
August 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28741343/relationships-between-certain-metabolic-diseases-and-selected-serum-biochemical-parameters-in-seropositive-dairy-cows-against-neospora-caninum-infection-in-different-stages-of-lactation
#6
Myassar O. Alekish, Abdelsalam Q Talafha, Musa A Alshehabat, Zuhair A Bani Ismail
Neospora caninum is an important cause of abortion in dairy cattle. The general health of affected cows has not been investigated before. Therefore, the main objective of this study was to identify possible relationships between certain metabolic diseases and selected serum biochemical parameters in seropositive dairy cows against N. caninum antibodies in different stages of lactation. The study was carried out using 72 N. caninum seropositive cows and 61 seronegative dairy cows (control). Serum from all cows was tested to determine their N...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28737202/-euglycemic-ketosis-in-an-adolescent-with-type-1-diabetes-on-insulin-and-dapaglifozin-case-report
#7
Marcia Pereyra A, Cristhian Ramírez, Rossana Román
Dapagliflozin, an insulin-independent sodium-glucose cotransporter 2 inhibitor (SGLT2-I) induces glycosuria and reduces hyperglycemia in adults with type 2 diabetes. OBJECTIVE: To present an “euglycemic” diabetic ketosis in an adolescent with type 1 diabetes (T1D) receiving dapagliflozin, to alert about the risk of a drug not approved in children nor in T1D. CASE REPORT: A 17 years old adolescent with T1D during 9 years, was started on dapagliflozin 10 mg / day to reduce insulin dose and weight...
June 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28731116/liquid-exfoliation-of-2d-mos2-nanosheets-and-their-utilization-as-a-label-free-electrochemical-immunoassay-for-subclinical-ketosis
#8
Satish K Tuteja, Todd Duffield, Suresh Neethirajan
We report the step-by-step fabrication of a 2D MoS2 nanostructure-based disposable electrochemical immunosensor to detect β-hydroxybutyrate (βHBA), a novel subclinical ketosis biomarker. The MoS2 nanosheets were exfoliated in the liquid phase by ultrasonication, and then followed by deposition on gold colloid modified screen-printed electrodes (Au-SPE). The MoS2-modified electrodes were thoroughly characterized by physical, electrochemical as well as spectroscopic techniques, and the obtained results indicate the successful and irreversible electrodeposition of MoS2 nanosheets...
August 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28726994/cell-biology-symposium-practical-application-of-the-basic-aspects-of-glut4-membrane-trafficking-and-insulin-signaling-on-issues-related-to-animal-agriculture
#9
S B Smith
Because of the relatively short lifespans of beef cattle, membrane trafficking in relation to inflammation is not considered important unless it overtly affects productivity. However, glucose uptake and utilization is important for adipose tissue development in beef cattle, and increasing glucose utilization in intramuscular adipose tissue can increase carcass quality. Research from the 1980s demonstrated a lack of insulin sensitivity in isolated bovine adipocytes and adipose tissue explants incubated in vitro...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28712316/disturbed-bovine-mitochondrial-lipid-metabolism-a-review
#10
J H van der Kolk, J J Gross, V Gerber, R M Bruckmaier
In mammals, excess energy is stored primarily as triglycerides, which are mobilized when energy demands arise and cannot be covered by feed intake. This review mainly focuses on the role of long chain fatty acids in disturbed energy metabolism of the bovine species. Long chain fatty acids regulate energy metabolism as ligands of peroxisome proliferator-activated receptors. β-Oxidation is the process by which fatty acid molecules are broken down in the mitochondria or peroxisomes to generate acetyl-CoA. Carnitine acts as a carrier of fatty acyl groups as long-chain acyl-CoA derivatives do not penetrate the mitochondrial inner membrane...
July 17, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28710307/is-it-safe-to-acutely-discontinue-insulin-therapy-in-patients-with-chronic-hyperglycaemia-starting-glp-1r-agonists
#11
Julie Omolola Okiro, Catherine Mc Hugh, Abuelmagd Abdalla
We report two patients with chronic hyperglycaemia secondary to type 2 diabetes who developed severe vomiting on d. The first patient was diagnosed with a mixed picture of diabetic ketoacidosis (DKA) and hyperosmolar hyperglycaemic state (HHS) and the second, with DKA. They were on insulin therapy which was discontinued on commencing d because of inefficacy and weight gain. The HHS patient developed dehydration secondary to vomiting and had lactic acidosis but no other precipitant could be found in either case...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28690056/associations-between-subclinical-hypocalcemia-and-postparturient-diseases-in-dairy-cows
#12
E M Rodríguez, A Arís, A Bach
Dairy cows suffer blood Ca losses as lactation begins and might be affected by hypocalcemia in its clinical (total serum Ca concentration <1.50 mM) or subclinical form (total serum Ca concentration ≤2.14 mM). Several studies have suggested that hypocalcemia is associated with different health problems of the cow but results from different studies are not consistent. The objective of this study was to assess potential associations between subclinical hypocalcemia (SCHC) and displaced abomasum, intramammary infections, metritis, retained placenta, and ketosis...
September 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28688615/innovative-dairy-cow-management-to-improve-resistance-to-metabolic-and-infectious-diseases-during-the-transition-period
#13
REVIEW
P Lacasse, N Vanacker, S Ollier, C Ster
The incidence of metabolic and infectious diseases varies greatly during the lactation cycle. Most new cases of clinical mastitis appear at the beginning of lactation, and the incidence increases with the level of milk production. In addition to mastitis, many other infectious diseases become clinically apparent during the first 2weeks of lactation. During this time, cows are in a negative energy balance and must mobilize body reserves to balance the deficit between food energy intake and energy required for milk production...
June 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28685968/prevalence-of-and-risk-factors-for-diabetic-ketosis-in-chinese-diabetic-patients-with-a-random-blood-glucose-level-13-9-mmol-l-result-from-check-study
#14
Leili Gao, Yufeng Li, Dadong Fei, Li Ma, Shuchun Chen, Bo Feng, Qing Su, Linong Ji
BACKGROUND: To investigate the prevalence of diabetic ketosis (DK) and risk factors for it in Chinese diabetes patients with severe hyperglycemia. METHODS: This is a multicenter, cross-sectional study. Patients aged >16 years with diabetes mellitus and a random blood glucose level >13.9 mmol/L (>250 mg/dl) were recruited to the study. Blood ketones (β-hydroxybutyric acid) and urine ketones (acetoacetic acid) were measured and patients' demographic and clinical characteristics were collected...
July 7, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28685447/diet-induced-ketosis-protects-against-focal-cerebral-ischemia-in-mouse
#15
Kui Xu, Lena Ye, Katyayini Sharma, Yongming Jin, Matthew M Harrison, Tylor Caldwell, Jessica M Berthiaume, Yu Luo, Joseph C LaManna, Michelle A Puchowicz
Over the past decade we have consistently shown that ketosis is neuroprotective against ischemic insults in rats. We reported that diet-induced ketotic rats had a significant reduction in infarct volume when subjected to middle cerebral artery occlusion (MCAO), and improved survival and recovery after cardiac arrest and resuscitation. The neuroprotective mechanisms of ketosis (via ketogenic diet; KG) include (i) ketones are alternate energy substrates that can restore energy balance when glucose metabolism is deficient and (ii) ketones modulate cell-signalling pathways that are cytoprotective...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28672253/accuracy-of-a-cow-side-test-for-the-diagnosis-of-hyperketonemia-and-hypoglycemia-in-lactating-dairy-cows
#16
K Macmillan, I López Helguera, A Behrouzi, M Gobikrushanth, B Hoff, M G Colazo
The objective of this study was to evaluate the use of a cow-side device (FreeStyle Precision Neo™) to diagnose ketosis and hypoglycemia based on measures of blood β-hydroxybutyrate (BHBA) and glucose. Eleven commercial dairy farms were visited and blood samples were taken from Holstein cows between 2 and 14days in milk, yielding 441 samples for BHBA analysis and 308 samples for glucose analysis. Concentrations of BHBA and glucose were measured in two ways, 1) using the cow-side device with whole blood immediately after sampling and 2) serum samples analyzed with a standard laboratory assay (Animal Health Laboratory, University of Guelph, Canada)...
June 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28668376/clinical-characteristics-beta-cell-dysfunction-and-treatment-outcomes-in-patients-with-a-%C3%AE-ketosis-prone-diabetes-kpd-the-first-identified-cohort-amongst-asian-indians
#17
Riddhi Das Gupta, Roshna Ramachandran, Praveen Gangadhara, Shajith Anoop, Surjitkumar H Singh, Anil Satyaraddi, Samantha Sathyakumar, H S Asha, Nihal Thomas
OBJECTIVE: Ketosis-prone diabetes (KPD), an atypical form of diabetes, has emerged as a heterogeneous syndrome in multiple ethnic groups. The objectives of this study were to look into the clinical characteristics of adult Asian Indian patients with recently diagnosed, antibody negative diabetes presenting with unprovoked ketoacidosis (A-β+ KPD) and to determine the natural course of recovery of beta-cell functions on serial follow-up over one year. RESEARCH DESIGN AND METHODS: Newly diagnosed adult diabetes patients (n=11) with suspected KPD (A-β+) were prospectively studied over a period of 1-year with serial evaluations of clinical, biochemical and beta-cell secretion characteristics...
June 23, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28667864/an-acidosis-sparing-ketogenic-ask-diet-to-improve-efficacy-and-reduce-adverse-effects-in-the-treatment-of-refractory-epilepsy
#18
REVIEW
Alan W C Yuen, Isabel A Walcutt, Josemir W Sander
Diets that increase production of ketone bodies to provide alternative fuel for the brain are evolving from the classic ketogenic diet for epilepsy devised nearly a century ago. The classic ketogenic diet and its more recent variants all appear to have similar efficacy with approximately 50% of users showing a greater than 50% seizure reduction. They all require significant medical and dietetic support, and there are tolerability issues. A review suggests that low-grade chronic metabolic acidosis associated with ketosis is likely to be an important contributor to the short term and long term adverse effects of ketogenic diets...
June 28, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28664602/neurod1-deficient-diabetes-mody6-identification-of-the-first-cases-in-japanese-and-the-clinical-features
#19
Yukio Horikawa, Mayumi Enya, Hiroyo Mabe, Megumi Fukushima, Noriyuki Takubo, Masaaki Ohashi, Fuki Ikeda, Ken-Ichi Hashimoto, Hirotaka Watada, Jun Takeda
AIMS: Only a few families with neuronal differentiation 1 (NEUROD1)-deficient diabetes, currently designated as maturity-onset diabetes of the young 6 (MODY6), have been reported, but mostly in Caucasian, and no mutation has been identified by family-based screening in Japanese. Accordingly, the phenotypic details of the disease remain to be elucidated. METHODS: We examined a total of 275 subjects having diabetes suspected to be MODY who were negative for mutations in MODY1-5 referred from 155 medical institutions throughout Japan...
June 30, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28662684/atypical-blood-glucose-response-to-continuous-and-interval-exercise-in-a-person-with-type-1-diabetes-a-case-report
#20
Othmar Moser, Gerhard Tschakert, Alexander Mueller, Werner Groeschl, Thomas R Pieber, Gerd Koehler, Max L Eckstein, Richard M Bracken, Peter Hofmann
BACKGROUND: Therapy must be adapted for people with type 1 diabetes to avoid exercise-induced hypoglycemia caused by increased exercise-related glucose uptake into muscles. Therefore, to avoid hypoglycemia, the preexercise short-acting insulin dose must be reduced for safety reasons. We report a case of a man with long-lasting type 1 diabetes in whom no blood glucose decrease during different types of exercise with varying exercise intensities and modes was found, despite physiological hormone responses...
June 30, 2017: Journal of Medical Case Reports
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