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https://www.readbyqxmd.com/read/29331171/the-genotypic-and-phenotypic-spectrum-of-mto1-deficiency
#1
James J O'Byrne, Maja Tarailo-Graovac, Aisha Ghani, Michael Champion, Charu Deshpande, Ali Dursun, Riza K Ozgul, Peter Freisinger, Ian Garber, Tobias B Haack, Rita Horvath, Ivo Barić, Ralf A Husain, Leo A J Kluijtmans, Urania Kotzaeridou, Andrew A Morris, Colin J Ross, Saikat Santra, Jan Smeitink, Mark Tarnopolsky, Saskia B Wortmann, Johannes A Mayr, Michaela Brunner-Krainz, Holger Prokisch, Wyeth W Wasserman, Ron A Wevers, Udo F Engelke, Richard J Rodenburg, Teck Wah Ting, Robert McFarland, Robert W Taylor, Ramona Salvarinova, Clara D M van Karnebeek
BACKGROUND: Mitochondrial diseases, a group of multi-systemic disorders often characterized by tissue-specific phenotypes, are usually progressive and fatal disorders resulting from defects in oxidative phosphorylation. MTO1 (Mitochondrial tRNA Translation Optimization 1), an evolutionarily conserved protein expressed in high-energy demand tissues has been linked to human early-onset combined oxidative phosphorylation deficiency associated with hypertrophic cardiomyopathy, often referred to as combined oxidative phosphorylation deficiency-10 (COXPD10)...
January 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29318219/extending-metformin-use-in-diabetic-kidney-disease-a-pharmacokinetic-study%C3%A2-in%C3%A2-stage-4-diabetic-nephropathy
#2
Ajith Munasinghe Dissanayake, Mark Christopher Wheldon, Jafar Ahmed, Christopher John Hood
Introduction: Metformin use in advanced chronic kidney disease is controversial. This study sought to examine the pharmacokinetics, safety, and efficacy of low-dose metformin in patients with type 2 diabetes and stage 4 chronic kidney disease. Methods: In this open-label, phase I trial, 3 consecutive cohorts (1, 2, and 3) of 6 patients each were recruited to receive 250-, 500-, or 1000-mg once-daily doses of metformin, respectively. All patients underwent a first-dose pharmacokinetic profile and weekly trough metformin concentrations for the duration of 4 weeks of daily therapy...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29316923/comparative-assessment-of-probiotics-and-monensin-in-the-prophylaxis-of-acute-ruminal-lactic-acidosis-in-sheep
#3
Leonardo Frasson Reis, Rejane Santos Sousa, Francisco Leonardo Costa Oliveira, Frederico Augusto Mazzocca Lopes Rodrigues, Carolina Akiko Sato Cabral Araújo, Enoch Brandão Souza Meira-Júnior, Raimundo Alves Barrêto-Júnior, Clara Satsuki Mori, Antonio Humberto Hamad Minervino, Enrico Lippi Ortolani
BACKGROUND: Acute ruminal lactic acidosis (ARLA) is a major nutritional and metabolic disorder usually characterized by excessive or non-adapted intake of diets rich in nonstructural carbohydrates. Feed additives that regulate the ruminal environment have been used to prevent ARLA, such as ionophores and, more recently, yeast culture. Thus, we aimed to compare the efficacy of a yeast-based culture (Saccharomyces cerevisiae) with that of monensin sodium in the prevention of ARLA in sheep...
January 9, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29290897/dose-related-effects-of-dexmedetomidine-on-immunomodulation-and-mortality-to-septic-shock-in-rats
#4
Yan Ma, Xiang-You Yu, Yi Wang
BACKGROUND: Dexmedetomidine has already been used in septic patients as a new sedative agent, few studies have examined its effects on immunomodulation. Therefore, the authors have designed a controlled experimental study to characterize the immunomodulation effects of dexmedetomidine in the cecal ligation and puncture (CLP) model in rats. METHODS: After CLP, 48 Wistar rats were randomly allocated into four groups: (1) CLP group; (2) small-dose treatment group (2...
2018: World Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29286387/establishment-of-an-extracellular-acidic-ph-culture-system
#5
Ayano Kondo, Tsuyoshi Osawa
Conditions of the tumor microenvironment, such as hypoxia or nutrient starvation, play critical roles in cancer progression and malignancy. However, the role of acidic extracellular pH in tumor aggressiveness and its underlying mechanism has not been extensively studied compared to hypoxic or nutrient starvation conditions. In addition, a well-defined culture method to mimic the acidic extracellular tumor microenvironment has not been fully reported. Here we present a simple in vitro culture method to maintain acidic extracellular pH using reduced bicarbonate and increased lactate or HCl concentrations in the culture medium...
November 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29274979/effects-of-prepartum-dietary-cation-anion-difference-and-source-of-vitamin-d-in-dairy-cows-vitamin-d-mineral-and-bone-metabolism
#6
R M Rodney, N Martinez, E Block, L L Hernandez, P Celi, C D Nelson, J E P Santos, I J Lean
Pregnant Holstein cows, 28 nulliparous and 51 parous, were blocked by parity and milk yield and randomly allocated to receive diets that differed in dietary cation-anion difference (DCAD), +130 or -130 mEq/kg, and supplemented with either calcidiol or cholecalciferol at 3 mg/11 kg of dry matter from 255 d of gestation until parturition. Blood was sampled thrice weekly prepartum, and on d 0, 1, 2, 3, 6, 9, 12, 15, 18, 21, 24, 27, and 30 postpartum to evaluate effects of the diets on vitamin D, mineral and bone metabolism, and acid-base status...
December 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29274977/technical-note-changes-in-rumen-mucosa-thickness-measured-by-transabdominal-ultrasound-as-a-noninvasive-method-to-diagnose-subacute-rumen-acidosis-in-dairy-cows
#7
V Neubauer, E Humer, I Kröger, A Meißl, N Reisinger, Q Zebeli
Feeding high-grain diets leads to the release and accumulation of short-chain fatty acids in the rumen. The subsequent prolonged decline in ruminal pH can lead to subacute ruminal acidosis (SARA). Accumulation of short-chain fatty acids can cause proliferation of rumen papillae to increase absorption surface, subsequently leading to a thickening of the rumen mucosa. The aim of this study was to evaluate the appropriateness of continuous measurements of the rumen mucosa thickness (RMT) as a diagnostic tool for SARA in dairy cows compared with continuous measurements of ruminal pH...
December 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29274956/epigenetic-mechanisms-contribute-to-decrease-stearoyl-coa-desaturase-1-expression-in-the-liver-of-dairy-cows-after-prolonged-feeding-of-high-concentrate-diet
#8
T L Xu, H M Seyfert, X Z Shen
Subacute ruminal acidosis (SARA) of dairy cattle is a widely occurring but not very overt metabolic disorder thought to impair milk composition. The enzyme stearoyl-CoA desaturase 1 (SCD1) is rate-limiting for the formation of Δ-9 unsaturated fatty acids and thus crucially involved in controlling lipid metabolism in the liver. It is known that SCD1 expression is downregulated during SARA, but the underlying molecular mechanisms are unknown. To study these mechanisms, we enrolled 12 healthy multiparous mid-lactation Holstein cows into a diet-induced SARA experiment...
December 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29260243/-perioperative-handling-of-antidiabetic-drugs
#9
REVIEW
J Wagner, V Luber, J F Lock, U A Dietz, S Lichthardt, N Matthes, K Krajinovic, C-T Germer, S Knop, A Wiegering
Diabetes mellitus is the most frequent metabolic disorder in the western world with a prevalence of 3% in adults under 65 years of age and 14.3% in adults over 65 years of age. Due to the increasing age of our population, the number of patients taking oral antidiabetic drugs has increased. Thus, operating physicians must make a risk-adapted decision whether the medication can be continued perioperatively or if certain drugs must be paused, and if so, with what risks. Operative interventions can lead to a number of metabolic shifts, which change the normal glucose metabolism...
December 19, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29245260/risk-factors-for-death-in-children-with-critical-and-severe-hand-foot-and-mouth-disease-in-chongqing-china-an-observational-study
#10
Gaihuan Zheng, Jiaoyang Cao, Jie Yu, Zhenzhen Zhang, Quanbo Liu, Junhua Chen
Hand-foot-and-mouth disease (HFMD) is a common childhood infection that may lead to serious complications and even death. Globally, epidemics of HFMD are increasing each year, especially in China. This study aimed to identify risk factors for death in children with critical and severe HFMD in Chongqing, China.We performed an observational study involving patients with critical and severe HFMD admitted to the Children's Hospital of Chongqing Medical University from January 2009 to December 2016. Overall, 179 patients aged 2 months to 16 years, were included; 127 died (non-survival group) and 52 survived (survival group); the case-fatality rate was 70...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29222713/comparative-analysis-of-lactic-acidosis-induced-by-linezolid-and-vancomycin-therapy-using-cohort-and-case-control-studies-of-incidence-and-associated-risk-factors
#11
Nobuaki Mori, Yoshio Kamimura, Yuki Kimura, Shoko Hirose, Yasuko Aoki, Seiji Bito
PURPOSE: Lactic acidosis is a rare complication of linezolid (LZD) therapy, and its incidence and risk factors remain unknown. This study aimed to compare the incidence of LZD-associated lactic acidosis (LALA) and vancomycin (VAN)-associated lactic acidosis (VALA) and investigate the risk factors for LALA. METHODS: We performed a retrospective cohort study using propensity score-matched analyses comparing the incidence of lactic acidosis between LZD and VAN therapy...
December 8, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29218772/signals-for-identifying-cows-at-risk-of-subacute-ruminal-acidosis-in-dairy-veterinary-practice
#12
REVIEW
E Humer, J R Aschenbach, V Neubauer, I Kröger, R Khiaosa-Ard, W Baumgartner, Q Zebeli
Controlling rumen disorders is critical to ensure successful dairy herd health management. Lactation diets of dairy cows are commonly rich in concentrates and low in physically effective fibre. Feeding of these diets increases the risk of rumen disorders with far-reaching consequences for cattle health, welfare and sustainability of dairy production. The term subacute ruminal acidosis or SARA is often used as a synonym for poor rumen health. Being subclinical, SARA lacks of clear symptoms and is therefore difficult to diagnose and to control in the practice...
December 8, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29198517/choice-of-resuscitative-fluids-and-mortality-in-emergency-department-patients-with-sepsis
#13
Monica Sethi, Clark G Owyang, Chad Meyers, Ram Parekh, Kaushal H Shah, Alex F Manini
OBJECTIVE: Balanced resuscitative fluids (BF) have been associated with decreased incidence of hyperchloremic metabolic acidosis in sepsis. We hypothesized that higher proportions of BF during resuscitation would thus be associated with improved mortality in Emergency Department (ED) patients with sepsis. METHODS: This was a retrospective chart review of adult ED patients who presented with sepsis to a large, urban teaching hospital over one year. The choice of resuscitation fluid in the first 2days of hospitalization was defined as either normal saline (NS) or balanced fluids (BF; Lactated Ringer's or Isolyte)...
October 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29198069/does-metformin-exposure-before-icu-stay-have-any-impact-on-patients-outcome-a-retrospective-cohort-study-of-diabetic-patients
#14
Sebastien Jochmans, Jean-Emmanuel Alphonsine, Jonathan Chelly, Ly Van Phach Vong, Oumar Sy, Nathalie Rolin, Olivier Ellrodt, Mehran Monchi, Christophe Vinsonneau
BACKGROUND: Impact of metformin exposure before ICU stay remains controversial. Metformin is thought to induce lactic acidosis and haemodynamic instability but may reduce ICU mortality. We evaluated its influence on outcome in diabetic patients admitted in the ICU and then compared two different populations based on the presence of septic shock. METHODS: We conducted a retrospective cohort study in a 24-bed French ICU between October 2010 and December 2013, including all ICU-admitted diabetic patients...
December 2, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29183573/age-dependent-physiological-dynamics-in-acid-base-balance-electrolytes-and-blood-metabolites-in-growing-goats
#15
S Redlberger, S Fischer, H Köhler, R Diller, P Reinhold
There is a paucity of published data reporting acid-base equilibrium in goats, and no information is available on how the acid-base complexity changes when suckling goat kids become ruminants. The aims of this study were to evaluate young healthy goats for age-related changes in serum proteins, metabolites, and electrolytes; differences in results when the Henderson-Hasselbalch equation or strong ion approaches were used were also assessed. To assess biological variability and reproducibility, two consecutive long-term studies, each lasting from the 6th to 56th week of life (wl), were performed in 15 (Study 1) and 10 (Study 2) animals...
November 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29179767/rhabdomyolysis-lactic-acidosis-and-multiple-organ-failure-during-telbivudine-treatment-for-hepatitis-b-a-case-report-and-review-of-the-literature
#16
Jinxin Zheng, Minggui Deng, Xiaoliang Qiu, Zhong Chen, Duoyun Li, Xiangbin Deng, Qiwen Deng, Zhijian Yu
BACKGROUND: Telbivudine can cause severe side effects, including myositis, neuritis, rhabdomyolysis, and lactic acidosis. However, reported cases of telbivudine leading to multiple organ failure are rare. Here, we report a case of telbivudine-induced severe polymyositis, lactic acidosis, and multiple organ failure. CASE PRESENTATION: A 30-year-old Chinese man with hepatitis B virus infection received antiviral treatment with 600 mg of telbivudine daily for more than 11 months...
November 27, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29176758/early-optimal-parenteral-nutrition-and-metabolic-acidosis-in-very-preterm-infants
#17
Francesco Bonsante, Jean-Bernard Gouyon, Pierre-Yves Robillard, Béatrice Gouyon, Silvia Iacobelli
BACKGROUND: It is currently recognized that an optimized nutritional approach, consisting of an early and substantial supply of protein and energy by parenteral route, may be beneficial for very low birth weight infants and recent guidelines endorse this strategy. However, the impact of the enhanced parenteral nutrition (PN) on acid-basic balance has never been investigated. The aim of the present study is to assess the effect of nutrient intake on acid-base homeostasis in a large population of preterm infants on PN...
2017: PloS One
https://www.readbyqxmd.com/read/29165910/retrospective-evaluation-of-the-prognostic-utility-of-plasma-lactate-concentration-base-deficit-ph-and-anion-gap-in-canine-and-feline-emergency-patients
#18
Casey J Kohen, Kate Hopper, Philip H Kass, Steven E Epstein
OBJECTIVE: To determine the association of plasma lactate concentration, pH, base deficit (BD), and anion gap (AG) in dogs and cats on presentation to an emergency room with outcome, and to compare the prognostic significance of hyperlactatemia with a concurrent metabolic acidosis with that of hyperlactatemia and a normal metabolic acid-base balance. DESIGN: Retrospective study. SETTING: University teaching hospital. ANIMALS: Five hundred sixty-six dogs and 185 cats that had venous blood gas analysis performed...
November 22, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29158884/a-mitochondrial-disorder-in-a-middle-age-iranian-patient-report-of-a-rare-case
#19
Mostafa Almasi, Mohammad Reza Motamed, Masoud Mehrpour, Bahram Haghi-Ashtiani, Fahimeh Haji Akhondi, Yalda Nilipour, Seyed-Mohammad Fereshtehnejad
Introduction: Mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) can involve multiple systems and cause stroke-like episodes and status epilepticus. Case Presentation: A 48-year-old female with history of early fatigability, migraine-type headaches, and bilateral sensory-neural hearing loss presented 3 episodes of serial seizures. On admission she was affected by Wernicke aphasia and, then, right hemiparesis. Investigations showed elevated arterial lactate and ragged red fibers on muscle biopsy...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29153519/invited-review-practical-feeding-management-recommendations-to-mitigate-the-risk-of-subacute-ruminal-acidosis-in-dairy-cattle
#20
E Humer, R M Petri, J R Aschenbach, B J Bradford, G B Penner, M Tafaj, K-H Südekum, Q Zebeli
Rumen health is of vital importance in ensuring healthy and efficient dairy cattle production. Current feeding programs for cattle recommend concentrate-rich diets to meet the high nutritional needs of cows during lactation and enhance cost-efficiency. These diets, however, can impair rumen health. The term "subacute ruminal acidosis" (SARA) is often used as a synonym for poor rumen health. In this review, we first describe the physiological demands of cattle for dietary physically effective fiber. We also provide background information on the importance of enhancing salivary secretions and short-chain fatty acid absorption across the stratified squamous epithelium of the rumen; thus, preventing the disruption of the ruminal acid-base balance, a process that paves the way for acidification of the rumen...
November 15, 2017: Journal of Dairy Science
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