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Carnitine

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https://www.readbyqxmd.com/read/28645263/microbiota-dependent-metabolite-and-cardiovascular-disease-marker-trimethylamine-n-oxide-tmao-is-associated-with-monocyte-activation-but-not-platelet-function-in-untreated-hiv-infection
#1
Judith M Haissman, Anna K Haugaard, Sisse R Ostrowski, Rolf K Berge, Johannes R Hov, Marius Trøseid, Susanne D Nielsen
BACKGROUND: HIV infection is associated with increased risk of cardiovascular disease beyond that explained by traditional risk factors. Altered gut microbiota, microbial translocation, and immune activation have been proposed as potential triggers. The microbiota-dependent metabolite trimethylamine-N-oxide (TMAO) predicts myocardial infarction (MI) in the general population and has recently been shown to induce platelet hyperreactivity. In the present study, we investigated if TMAO was associated with platelet function, microbial translocation, and immune activation in both untreated and combination anti-retroviral therapy (cART) HIV infection...
June 23, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28641602/milk-replacers-supplemented-with-either-l-arginine-or-l-carnitine-potentially-improve-muscle-maturation-of-early-reared-low-birth-weight-piglets-from-hyperprolific-sows
#2
J G Madsen, S Mueller, M Kreuzer, M B Bigler, P Silacci, G Bee
As a result of the selection for genotypes with greater sow prolificacy, litter size increased and, concomitantly, average litter birth weight and early postnatal survival rates of low birth weight (L-BtW) offspring decreased. This study compared the impact of l-carnitine (CAR) and l-arginine (ARG) supplemented with a milk replacer and fed to L-BtW piglets born from large litters from days 7 to 28 of age on growth performance, carcass composition, organ and Semitendinosus muscle (STM) development. A total of 30 female and castrated Swiss Large White piglets weaned at 7 days of age were assigned to three milk replacer diets containing either no supplement (CON), CAR (0...
June 23, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28641532/trimethylamine-n-oxide-tmao-as-a-new-potential-therapeutic-target-for-insulin-resistance-and-cancer
#3
Jens Oellgaard, Signe Abitz Winther, Tobias Schmidt Hansen, Peter Rossing, Bernt Johan von Scholten
BACKGROUND: The intake of animal products in food has been associated with both the development of insulin resistance and gastrointestinal cancers (GIC). Through the digestion of animal protein and other constituents of animal products, the commensal bacteria in the gut (the gut microbiota) forms metabolites that can contribute to the development of both insulin resistance and cancer. Trimethylamine-N-Oxide (TMAO) is such a molecule and has recently drawn a lot of attention as it may be a risk factor for - and a link between - the gut microbiota and cardiovascular and renal disease...
June 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28637888/maternal-bmi-and-glycemia-impact-the-fetal-metabolome
#4
William L Lowe, James R Bain, Michael Nodzenski, Anna C Reisetter, Michael J Muehlbauer, Robert D Stevens, Olga R Ilkayeva, Lynn P Lowe, Boyd E Metzger, Christopher B Newgard, Denise M Scholtens
OBJECTIVE: We used targeted metabolomics to determine associations of maternal BMI and glucose levels with cord blood metabolites and associations of cord blood metabolites with newborn birth weight and adiposity in mother-offspring dyads. RESEARCH DESIGN AND METHODS: Targeted metabolomic assays were performed on cord blood serum samples from European ancestry, Afro-Caribbean, Thai, and Mexican American newborns (400 from each ancestry group) whose mothers participated in the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) Study and who had anthropometric measurements at birth...
July 2017: Diabetes Care
https://www.readbyqxmd.com/read/28632946/emerging-biomarkers-of-illness-severity-urinary-metabolites-associated-with-sepsis-and-necrotizing-methicillin-resistant-staphylococcus-aureus-pneumonia
#5
Lilliam Ambroggio, Todd A Florin, Samir S Shah, Richard Ruddy, Larisa Yeomans, Julie Trexel, Kathleen A Stringer
STUDY OBJECTIVE: To illustrate the potential of metabolomics to identify novel biomarkers of illness severity in a child with fatal necrotizing pneumonia caused by methicillin-resistant Staphylococcus aureus (MRSA). DESIGN: Case report with two control groups and a metabolomics analysis. PATIENTS: An infant with fatal MRSA pneumonia, four children with influenza pneumonia (pneumonia control group), and seven healthy children with no known infections (healthy control group)...
June 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28630000/betaine-aldehyde-dehydrogenase-expression-during-physiological-cardiac-hypertrophy-induced-by-pregnancy
#6
Jesús Alfredo Rosas-Rodríguez, José Guadalupe Soñanez-Organis, José Arquimides Godoy-Lugo, Juan Alberto Espinoza-Salazar, Cesar Jeravy López-Jacobo, Norma Aurora Stephens-Camacho, Guadalupe González-Ochoa
Betaine Aldehyde Dehydrogenase (betaine aldehyde: NAD(P)(+) oxidoreductase, (E.C. 1.2.1.8; BADH) catalyze the irreversible oxidation of betaine aldehyde (BA) to glycine betaine (GB) and is essential for polyamine catabolism, γ-aminobutyric acid synthesis, and carnitine biosynthesis. GB is an important osmolyte that regulates the homocysteine levels, contributing to a vascular risk factor reduction. In this sense, distinct investigations describe the physiological roles of GB, but there is a lack of information about the GB novo synthesis process and regulation during cardiac hypertrophy induced by pregnancy...
June 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28624482/nmr-quantification-of-trimethylamine-n-oxide-in-human-serum-and-plasma-in-the-clinical-laboratory-setting
#7
Erwin Garcia, Justyna Wolak-Dinsmore, Zeneng Wang, Xinmin S Li, Dennis W Bennett, Margery A Connelly, James D Otvos, Stanley L Hazen, Elias J Jeyarajah
BACKGROUND AND OBJECTIVES: Trimethylamine-N-oxide (TMAO) produced by gut microbiota metabolism of dietary choline and carnitine has been shown to be associated with increased risk of cardiovascular disease (CVD) and to provide incremental clinical prognostic utility beyond traditional risk factors for assessing a patient's CVD risk. The aim of this study was to develop an automated nuclear magnetic resonance (NMR) spectroscopy assay for quantification of TMAO concentration in serum and plasma using a high-throughput NMR clinical analyzer...
June 14, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28623919/effects-of-karela-bitter-melon-momordica-charantia-on-genes-of-lipids-and-carbohydrates-metabolism-in-experimental-hypercholesterolemia-biochemical-molecular-and-histopathological-study
#8
Dalia Yossri Saad, Mohamed Mohamed Soliman, Ahmed A Baiomy, Magdy Hassan Yassin, Hanan Basiouni El-Sawy
BACKGROUND: Hypercholesterolemia is a serious diseases associated with type-2 diabetes, atherosclerosis, cardiovascular disorders and liver diseases. Humans seek for safe herbal medication such as karela (Momordica charantia/bitter melon) to treat such disorders to avoid side effect of pharmacotherapies widely used. METHODS: Forty male Wistar rats were divided into four equal groups; control group with free access to food and water, cholesterol administered group (40 mg/kg BW orally); karela administered group (5 g /kg BW orally) and mixture of cholesterol and karela...
June 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28622483/human-milk-fortifiers-do-not-meet-the-current-recommendation-for-nutrients-in-very-low-birth-weight-infants
#9
Winston Koo, Hilary Tice
BACKGROUND: Use of multinutrient fortifiers is standard of care for small preterm infants fed exclusively human milk. However, adequacy of human milk fortifiers (HMFs) to meet the recommended intake for macronutrients and micronutrients is now known. MATERIALS AND METHODS: Nutrient content of human milk fortified according to manufacturer's recommendations was compared at isocaloric levels for 1 human milk-based (HMF-A), 2 bovine milk protein-based (HMF-B, HMF-C), and 2 preterm infant formulas (PTF-B, PTF-C)...
June 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28620483/utilisation-of-supplemented-l-carnitine-for-fuel-efficiency-as-an-antioxidant-and-for-muscle-recovery-in-labrador-retrievers
#10
Jessica L Varney, J W Fowler, W C Gilbert, C N Coon
The primary goal was to investigate the effects of l-carnitine on fuel efficiency, as an antioxidant, and for muscle recovery in Labrador retrievers. Dogs were split into two groups, with one group being supplemented with 250 mg/d of Carniking™ l-carnitine powder. Two experiments (Expt 1 and Expt 2) were performed over a 2-year period which included running programmes, activity monitoring, body composition scans and evaluation of recovery using biomarkers. Each experiment differed slightly in dog number and design: fifty-six v...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28608940/association-between-resistance-to-erythropoiesis-stimulating-agents-and-carnitine-profile-in-patients-on-maintenance-hemodialysis
#11
Daigo Kamei, Ken Tsuchiya, Kosaku Nitta, Michio Mineshima, Takashi Akiba
OBJECTIVE: Patients on dialysis are in a chronic carnitine-deficient state. This condition may be associated with abnormalities in fatty acid and organic acid metabolism; however, the details are unknown. We investigated the association between carnitine profiles before and after dialysis and the erythropoiesis-stimulating agent (ESA) resistance index (ERI), which is a significant prognostic factor in patients on maintenance hemodialysis. DESIGN AND METHODS: cross-sectional study...
June 13, 2017: Nephrology
https://www.readbyqxmd.com/read/28608457/potential-therapeutic-interventions-for-chronic-kidney-disease-associated-sarcopenia-via-indoxyl-sulfate-induced-mitochondrial-dysfunction
#12
Yuki Enoki, Hiroshi Watanabe, Riho Arake, Rui Fujimura, Kana Ishiodori, Tadashi Imafuku, Kento Nishida, Ryusei Sugimoto, Saori Nagao, Shigeyuki Miyamura, Yu Ishima, Motoko Tanaka, Kazutaka Matsushita, Hirotaka Komaba, Masafumi Fukagawa, Masaki Otagiri, Toru Maruyama
BACKGROUND: Chronic kidney disease (CKD) patients experience skeletal muscle wasting and decreased exercise endurance. Our previous study demonstrated that indoxyl sulfate (IS), a uremic toxin, accelerates skeletal muscle atrophy. The purpose of this study was to examine the issue of whether IS causes mitochondria dysfunction and IS-targeted intervention using AST-120, which inhibits IS accumulation, or mitochondria-targeted intervention using L-carnitine or teneligliptin, a dipeptidyl peptidase-4 inhibitor which retains mitochondria function and alleviates skeletal muscle atrophy and muscle endurance in chronic kidney disease mice...
June 12, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28606576/insulin-sensitizers-improve-the-glp-1-secretion-and-the-amount-of-intestinal-l-cells-on-high-fat-diet-induced-catch-up-growth
#13
Juan Zheng, Kang-Li Xiao, Lulu Chen, Chaodong Wu, Xiang Hu, Tianshu Zeng, Xiao-Qian Chen, Wen-Juan Li, Xiuling Deng, Huiqing Li, Yu-Ming Li
OBJECTIVE: The aim of this study was to investigate whether insulin resistance can result in impaired glucagon-like peptide (GLP)-1 secretion and to determine whether insulin-sensitizing drugs could improve the secretion of GLP-1 in catch-up growth rats. METHODS: Male Sprague Dawley rats were used to establish a catch-up growth model. At the end of weeks 6 and 14, these rats were euthanized to measure energy intake, body weight, plasma triacylglycerol, and nonesterified fatty acid...
July 2017: Nutrition
https://www.readbyqxmd.com/read/28606150/severe-hypertriglyceridemia-in-norway-prevalence-clinical-and-genetic-characteristics
#14
Kjetil Retterstøl, Ingunn Narverud, Randi Selmer, Knut E Berge, Ingvild V Osnes, Stine M Ulven, Bente Halvorsen, Pål Aukrust, Kirsten B Holven, Per O Iversen
BACKGROUND: There is a lack of comprehensive patient-datasets regarding prevalence of severe hypertriglyceridemia (sHTG; triglycerides ≥10 mmol/L), frequency of co-morbidities, gene mutations, and gene characterization in sHTG. Using large surveys combined with detailed analysis of sub-cohorts of sHTG patients, we here sought to address these issues. METHODS: We used data from several large Norwegian surveys that included 681,990 subjects, to estimate the prevalence...
June 12, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28605113/muscle-carnitine-availability-plays-a-central-role-in-regulating-fuel-metabolism-in-the-rodent
#15
Craig Porter, Dumitru Constantin-Teodosiu, Despina Constantin, Brendan Leighton, Simon M Poucher, Paul L Greenhaff
The body carnitine pool is primarily confined to skeletal muscle, where it regulates carbohydrate (CHO) and fat usage. Mildronate (3-(2,2,2-trimethylhydrazinium)-propionate) inhibits carnitine synthesis and tissue uptake, but the impact of carnitine depletion on whole-body fuel selection, muscle fuel metabolism and its molecular regulation is under-investigated. Male lean Zucker rats received water (control, n = 8) or mildronate-supplemented water (mildronate, n = 8) for 10 days (1.6 g kg(-1) body mass (bm)(...
June 12, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28601299/possible-effects-of-some-agents-on-the-injured-nerve-in-obese-rats-a%C3%A2-stereological-and-electron-microscopic-study
#16
Mehmet Emin Onger, Süleyman Kaplan, Stefano Geuna, Aysin Pinar Türkmen, Luisa Muratori, Gamze Altun, Berrin Zuhal Altunkaynak
PURPOSE: The main aim of this study was to research new treatments following peripheral nerve injury involving melatonin (Mel), acetyl-l-carnitine (ALCAR), and leptin (Lep) using updated unbiased methods at the stereological and electron microscopic levels. MATERIALS AND METHODS: Wistar albino rats were randomly divided into nine equal groups; control (Cont), obese control (OG), obese group exposed to sciatic nerve resection (Gap) (OGG), obese group injected intraperitoneally (i...
May 11, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28599882/saponins-from-stems-and-leaves-of-panax-ginseng-prevent-obesity-via-regulating-thermogenesis-lipogenesis-and-lipolysis-in-high-fat-diet-induced-obese-c57bl-6-mice
#17
Guilin Chen, Haijun Li, Yan Zhao, Hongyan Zhu, Enbo Cai, Yugang Gao, Shuangli Liu, He Yang, Lianxue Zhang
In this study, high-fat diet (HFD)-induced obesity in mouse model was used to evaluate the dietary effect of saponins from stems and leaves of Panax ginseng (SLG), and to explore its mechanism of action in producing anti-obesity effects. The results indicate that SLG showed significant anti-obesity effects in diet-induced obese mice, represented by decreased serum levels of free fatty acids (FFA), total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL)-cholesterol, glucose, leptin and insulin, as well as a reduction in overall body and liver weight, epididymal adipose tissue weight, and food efficiency, and inhibition of abnormal increases in acyl carnitine levels normally caused by an HFD...
June 7, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28598967/mitochondrial-respiration-and-ros-emission-during-%C3%AE-oxidation-in-the-heart-an-experimental-computational-study
#18
Sonia Cortassa, Steven J Sollott, Miguel A Aon
Lipids are main fuels for cellular energy and mitochondria their major oxidation site. Yet unknown is to what extent the fuel role of lipids is influenced by their uncoupling effects, and how this affects mitochondrial energetics, redox balance and the emission of reactive oxygen species (ROS). Employing a combined experimental-computational approach, we comparatively analyze β-oxidation of palmitoyl CoA (PCoA) in isolated heart mitochondria from Sham and streptozotocin (STZ)-induced type 1 diabetic (T1DM) guinea pigs (GPs)...
June 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28597777/improved-metabolism-and-redox-state-with-a-novel-preservation-solution-implications-for-donor-lungs-after-cardiac-death-dcd
#19
David A Schipper, Anthony V Louis, Destiny S Dicken, Kitsie Johnson, Ryszard T Smolenski, Stephen M Black, Ray Runyan, John Konhilas, Joe G N Garcia, Zain Khalpey
Lungs donated after cardiac death (DCD) are an underutilized resource for a dwindling donor lung transplant pool. Our study investigates the potential of a novel preservation solution, Somah, to better preserve statically stored DCD lungs, for an extended time period, when compared to low-potassium dextran solution (LPD). We hypothesize that Somah is a metabolically superior organ preservation solution for hypothermic statically stored porcine DCD lungs, possibly improving lung transplant outcomes. Porcine DCD lungs (n = 3 per group) were flushed with and submerged in cold preservation solution...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28597291/multiple-drug-transporters-mediate-the-placental-transport-of-sulpiride
#20
Mengru Bai, Zhiyuan Ma, Dongli Sun, Caihong Zheng, Yayun Weng, Xi Yang, Ting Jiang, Huidi Jiang
Sulpiride is a typical antipsychotic drug for the treatment of schizophrenia, depression and other psychological disorders. It has been proven that a small amount of sulpiride could cross the human placenta using an ex vivo placental perfusion model. However, the placental transfer mechanism has not been elucidated. Considering the structure of sulpiride, we speculated that the transporters expressed in placenta might be involved in sulpiride uptake across the blood-placenta barrier. The aim of our study was to determine which transporters contributed to the placental transfer of sulpiride...
June 9, 2017: Archives of Toxicology
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