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Beta-hydroxybutyrate

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https://www.readbyqxmd.com/read/27878924/differences-in-rumen-fermentation-characteristics-between-low-yield-and-high-yield-dairy-cows-in-early-lactation
#1
Ahmad Sofyan, Makoto Mitsumori, Hideyuki Ohmori, Yutaka Uyeno, Toshiya Hasunuma, Kiyoshi Akiyama, Hiroshi Yamamoto, Hiroaki Yokokawa, Tsuneko Yamaguchi, Takumi Shinkai, Makoto Hirako, Shiro Kushibiki
Relationship between rumen fermentation parameters, blood biochemical profiles and milk production traits in different yielding dairy cows during early lactation was investigated. Twelve dairy cows were divided into two groups based on their milk yield, that is low-yield (LY) and high-yield (HY) groups. Rumen fluid and blood were collected at 3 weeks prepartum and 4, 8 and 12 weeks postpartum. Results showed that proportions of acetate, propionate to total short chain fatty acids and acetate : propionate ratio were changed (P < 0...
November 23, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27855237/insulin-autoimmune-syndrome-a-rare-cause-of-postprandial-hypoglycemia
#2
Pooja Sahni, Nitin Trivedi, Abdulkadir Omer
: A 65-year-old obese Caucasian woman presented with symptomatic postprandial hypoglycemic episodes, resolution of symptoms with carbohydrate intake and significantly elevated anti-insulin antibody levels. She did not have any evidence for the use of oral antidiabetic medications, insulin, herbal substances, performing strenuous exercise or history of bariatric surgery. Fingerstick blood glucose readings revealed blood sugar of 35 mg/dL and 48 mg/dL, when she had these symptoms. Her medical history was significant for morbid obesity, hypothyroidism and gastro esophageal reflux disease...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27807376/the-use-of-serum-beta-hydroxybutyrate-to-determine-whether-nursery-pigs-selected-on-the-basis-of-clinical-signs-are-anorexic
#3
Amanda M Perri, Terri L O'Sullivan, John C S Harding, Robert M Friendship
The process of weaning pigs alters intestinal structures and influences piglet behavior, which can result in anorexia. When housed in large groups, affected pigs can be difficult to identify at an early stage. The clinical signs of anorexia include loss in body condition (thinness) and repetitive oral behavior (chomping). The objective of this study was to determine if pigs identified at 4 to 7 days post-weaning on the basis of clinical signs were anorexic based on elevated serum beta-hydroxybutyrate (BHB) levels (ketosis)...
November 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27795825/usefulness-of-clinical-observations-and-blood-chemistry-values-for-predicting-clinical-outcomes-in-dairy-goats-with-pregnancy-toxaemia
#4
Miguel S Lima, Júlia M Silveira, Nuno Carolino, Luis P Lamas, Rita A Pascoal, Charles A Hjerpe
BACKGROUND: Pregnancy toxaemia (PT) is a disease that affects pregnant goats during their last month of gestation and is characterized by a high case fatality rate. This study involved 32 does maintained on a commercial dairy goat farm that were diagnosed with PT. A physical examination was performed on and haematology parameters obtained from each doe, at the time of diagnosis. The data from the 24 PT goats that died was compared with the corresponding data from the 8 PT goats that survived...
2016: Irish Veterinary Journal
https://www.readbyqxmd.com/read/27788628/serial-changes-in-plasma-ketone-concentrations-in-patients-with-acute-brain-injury
#5
Hayden White, Balasubramanian Venkatesh, Mark Jones, Hesly Fuentes
Objective Acute brain injury (ABI) is a catastrophic event, leading to disruption of the normal cerebral metabolic pathways and a subsequent cerebral energy deficit. Ketones (beta-hydroxybutyrate (BHB) and acetoacetate) may represent an alternative metabolic substrate with the potential to improve cerebral energy supply and decrease injury. The purpose of this study was to evaluate baseline ketone concentrations in the ABI population. Methods Thirty-eight patients with ABI were enrolled into the study and followed for up to 7 days...
October 27, 2016: Neurological Research
https://www.readbyqxmd.com/read/27633987/prevalence-of-ketosis-ketonuria-and-ketoacidosis-during-liberal-glycemic-control-in-critically-ill-patients-with-diabetes-an-observational-study
#6
Nora Luethi, Luca Cioccari, Marco Crisman, Rinaldo Bellomo, Glenn M Eastwood, Johan Mårtensson
BACKGROUND: It is uncertain whether liberal glucose control in critically ill diabetic patients leads to increased ketone production and ketoacidosis. Therefore, we aimed to assess the prevalence of ketosis, ketonuria and ketoacidosis in critically ill diabetic patients treated in accordance with a liberal glycemic control protocol. METHODS: We performed a prospective observational cohort study of 60 critically ill diabetic patients with blood and/or urine ketone bodies tested in ICU...
September 15, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27632353/prevalence-and-identification-of-burkholderia-pseudomallei-and-near-neighbor-species-in-the-malabar-coastal-region-of-india
#7
Bhavani V Peddayelachagiri, Soumya Paul, Sowmya Nagaraj, Madhurjya Gogoi, Murali H Sripathy, Harsh V Batra
Accurate identification of pathogens with biowarfare importance requires detection tools that specifically differentiate them from near-neighbor species. Burkholderia pseudomallei, the causative agent of a fatal disease melioidosis, is one such biothreat agent whose differentiation from its near-neighbor species is always a challenge. This is because of its phenotypic similarity with other Burkholderia species which have a wide spread geographical distribution with shared environmental niches. Melioidosis is a major public health concern in endemic regions including Southeast Asia and northern Australia...
September 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27599101/changes-in-energetic-metabolism-of-biomphalaria-glabrata-mollusca-planorbidae-in-response-to-exogenous-calcium
#8
L D Silva, V C S Amaral, M C Vinaud, A M Castro, H H A Rezende, D B Santos, C C Mello-Silva, J C B Bezerra
Calcium is considered an essential element for the metabolism of aquatic snail Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni Sambon, 1907 in Brazil, and represents a limiting factor to its distribution and adaptation to the environment. This study investigated the effect of different concentrations of exogenous CaCO3 on the energetic metabolism of B. glabrata for better understanding the physiological interference of chemical elements dissolved in the environment with the physiology of this species...
September 5, 2016: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/27590424/influence-of-energy-level-and-nicotinic-acid-supplementation-on-apoptosis-of-blood-leukocytes-of-periparturient-dairy-cows
#9
S Bühler, J Frahm, R Tienken, S Kersten, U Meyer, K Huber, S Dänicke
The periparturient period of dairy cows is accompanied by an immunosuppression that leaves the animal more susceptible to infections and metabolic disorders. Non-esterified fatty acids (NEFA) and beta-hydroxybutyrate (BHB) which peak shortly after parturition due to lipolysis are known to impair immune cell functions. Niacin with its well-known anti-lipolytic effect may have the ability to ameliorate this situation. Additionally, niacin shows also anti-inflammatory effects that may be beneficial to the immune status of the cow...
October 15, 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27578413/microwave-assisted-on-spot-derivatization-for-gas-chromatography-mass-spectrometry-based-determination-of-polar-low-molecular-weight-compounds-in-dried-blood-spots
#10
Nele Sadones, Elien Van Bever, John R H Archer, David M Wood, Paul I Dargan, Luc Van Bortel, Willy E Lambert, Christophe P Stove
Dried blood spot (DBS) sampling and analysis is increasingly being applied in bioanalysis. Although the use of DBS has many advantages, it is also associated with some challenges. E.g. given the limited amount of available material, highly sensitive detection techniques are often required to attain sufficient sensitivity. In gas chromatography coupled to mass spectrometry (GC-MS), derivatization can be helpful to achieve adequate sensitivity. Because this additional sample preparation step is considered as time-consuming, we introduce a new derivatization procedure, i...
September 23, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27554760/metabolic-blood-profile-of-beef-heifers-during-oestrous-and-non-oestrous-states
#11
E M Crane, J C Munro, S L Bourgon, M Diel de Amorim, R Ventura, A H Fredeen, Y R Montanholi
Haematological metabolic profiles in heifers could contribute to the development of proxies for oestrous detection and provide clues to further characterize biological changes during oestrus. One hundred and seven beef heifers were observed for oestrous behaviour twice daily for 124 days. Feed intake and productive performance (body weight and composition) traits were measured, and feed efficiency was determined using residual feed intake (kg DM/day). Blood plasma samples were collected when signs of oestrus were observed and every 30 ± 2 days...
October 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27509509/probing-the-kinetic-anabolism-of-poly-beta-hydroxybutyrate-in-cupriavidus-necator-h16-using-single-cell-raman-spectroscopy
#12
Zhanhua Tao, Lixin Peng, Pengfei Zhang, Yong-Qing Li, Guiwen Wang
Poly-beta-hydroxybutyrate (PHB) can be formed in large amounts in Cupriavidus necator and is important for the industrial production of biodegradable plastics. In this investigation, laser tweezers Raman spectroscopy (LTRS) was used to characterize dynamic changes in PHB content-as well as in the contents of other common biomolecule-in C. necator during batch growth at both the population and single-cell levels. PHB accumulation began in the early stages of bacterial growth, and the maximum PHB production rate occurred in the early and middle exponential phases...
2016: Sensors
https://www.readbyqxmd.com/read/27504458/association-between-serum-albumin-concentration-and-ketosis-risk-in-hospitalized-individuals-with-type-2-diabetes-mellitus
#13
Po-Chung Cheng, Shang-Ren Hsu, Yun-Chung Cheng
Objective. This study examined the association between serum albumin concentration and ketosis risk in hospitalized individuals with type 2 diabetes mellitus (T2DM). Methods. A retrospective cross-sectional study was conducted at a medical center in Taiwan. Inclusion criteria were endocrinology ward inpatients exceeding 21 years of age, with preexisting diagnosis of T2DM, and blood glucose above 13.9 millimoles per liter (mmol/L) at admission. Individuals without measurement of serum albumin, urine ketone, or hemoglobin A1C, or harboring active infection, myocardial infarction, cerebrovascular event, cirrhosis, malignancy, or overt proteinuria were excluded...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27458340/can-ketones-help-rescue-brain-fuel-supply-in-later-life-implications-for-cognitive-health-during-aging-and-the-treatment-of-alzheimer-s-disease
#14
Stephen C Cunnane, Alexandre Courchesne-Loyer, Camille Vandenberghe, Valérie St-Pierre, Mélanie Fortier, Marie Hennebelle, Etienne Croteau, Christian Bocti, Tamas Fulop, Christian-Alexandre Castellano
We propose that brain energy deficit is an important pre-symptomatic feature of Alzheimer's disease (AD) that requires closer attention in the development of AD therapeutics. Our rationale is fourfold: (i) Glucose uptake is lower in the frontal cortex of people >65 years-old despite cognitive scores that are normal for age. (ii) The regional deficit in brain glucose uptake is present in adults <40 years-old who have genetic or lifestyle risk factors for AD but in whom cognitive decline has not yet started...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27435643/a-systematic-review-and-meta-analysis-of-the-diagnostic-accuracy-of-point-of-care-tests-for-the-detection-of-hyperketonemia-in-dairy-cows
#15
REVIEW
Elise H Tatone, Jessica L Gordon, Jessie Hubbs, Stephen J LeBlanc, Trevor J DeVries, Todd F Duffield
Several rapid tests for use on farm have been validated for the detection of hyperketonemia (HK) in dairy cattle, however the reported sensitivity and specificity of each method varies and no single study has compared them all. Meta-analysis of diagnostic test accuracy is becoming more common in human medical literature but there are few veterinary examples. The objective of this work was to perform a systematic review and meta-analysis to determine the point-of-care testing method with the highest combined sensitivity and specificity, the optimal threshold for each method, and to identify gaps in the literature...
August 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27418037/tridecanoin-is-anticonvulsant-antioxidant-and-improves-mitochondrial-function
#16
Kah Ni Tan, Catalina Carrasco-Pozo, Tanya S McDonald, Michelle Puchowicz, Karin Borges
The hypothesis that chronic feeding of the triglycerides of octanoate (trioctanoin) and decanoate (tridecanoin) in "a regular non-ketogenic diet" is anticonvulsant was tested and possible mechanisms of actions were subsequently investigated. Chronic feeding of 35E% of calories from tridecanoin, but not trioctanoin, was reproducibly anticonvulsant in two acute CD1 mouse seizure models. The levels of beta-hydroxybutyrate in plasma and brain were not significantly increased by either treatment relative to control diet...
July 14, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27392286/fasting-time-duration-modulates-the-onset-of-insulin-induced-hypoglycemic-seizures-in-mice
#17
Vigneshwaran Pitchaimani, Somasundaram Arumugam, Rajarajan Amirthalingam Thandavarayan, Vengadeshprabhu Karuppagounder, Mst Rejina Afrin, Remya Sreedhar, Meilei Harima, Hiroshi Suzuki, Shizuka Miyashita, Takashi Nakamura, Kenji Suzuki, Masahiko Nakamura, Kazuyuki Ueno, Kenichi Watanabe
OBJECTIVE: Fasting (48h) in mice causes resistance to insulin-induced hypoglycemic seizures (IIHS) but in rats fasting (14-16h) predisposes IIHS. So we suspect the duration of fasting may possibly affect the onset of seizures and in this study, we investigated the IIHS by administering 8 Units (U) insulin (INS)/k.g., intraperitoneally to 8 weeks old male C57BL6/J mice. METHODS: The mice were divided into group 1 (non-fasted), group 2 (6h fasted) and group 3 (24h fasted) and we administered the 8U INS...
September 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27310007/effect-of-the-ketone-body-beta-hydroxybutyrate-on-the-innate-defense-capability-of-primary-bovine-mammary-epithelial-cells
#18
Maria Hillreiner, Claudia Flinspach, Michael W Pfaffl, Heike Kliem
Negative energy balance and ketosis are thought to cause impaired immune function and to increase the risk of clinical mastitis in dairy cows. The present in vitro study aimed to investigate the effect of elevated levels of the predominant ketone body β-hydroxybutyrate on the innate defense capability of primary bovine mammary epithelial cells (pbMEC) challenged with the mastitis pathogen Escherichia coli (E. coli). Therefore, pbMEC of healthy dairy cows in mid- lactation were isolated from milk and challenged in culture with 3 mM BHBA and E...
2016: PloS One
https://www.readbyqxmd.com/read/27277573/effects-of-different-forage-sources-as-a-free-choice-provision-on-the-performance-nutrient-digestibility-selected-blood-metabolites-and-structural-growth-of-holstein-dairy-calves
#19
B Movahedi, A D Foroozandeh, P Shakeri
The objective of this study was to determine the effects of different forage sources on the growth performance, nutrient digestibility and blood metabolites of dairy calves. Individually housed calves (n = 40; body weight = 41.2 ± 3.5 kg) were randomly allocated (n = 10 calves per treatment: five males and five females) to one of the following four treatments: (i) starter without forage provision (CON), (ii) starter plus chopped alfalfa hay (AH), (iii) starter plus chopped wheat straw (WS) and 4) starter plus dried sugar beet pulp (BP) flakes...
June 9, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27273198/effect-of-pre-and-post-partum-supplementation-with-lipid-encapsulated-conjugated-linoleic-acid-on-milk-yield-and-metabolic-status-in-multiparous-high-producing-dairy-cows
#20
E Galamb, V Faigl, M Keresztes, Z Csillik, A Tröscher, P Elek, M Kulcsár, G Huszenicza, H Fébel, F Husvéth
We evaluated the lactation performance, liver lipid content and plasma metabolites indicating the energy balance of dairy cows supplemented with conjugated linoleic acid (CLA) pre- and post-partum (PP) vs. only PP. A total of 60 cows were divided into three groups (n = 20). Daily diet of cows was supplemented with 14 g of CLA (7 g cis-9, trans-11 and 7 g trans-10, cis-12 isomers) from week 3 before the expected date of calving (group CLA1), or from the day of calving (group CLA2) until 77-91 days PP. Control cows were fed an isocaloric, isonitrogenous and isolipidic diet without CLA...
June 8, 2016: Journal of Animal Physiology and Animal Nutrition
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