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medium chain fatty acid

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https://www.readbyqxmd.com/read/28805896/the-composition-of-dietary-fat-alters-the-transcriptional-profile-of-pathways-associated-with-lipid-metabolism-in-the-liver-and-adipose-tissue-in-the-pig
#1
T A Kellner, N K Gabler, J F Patience
The objective was to investigate the of effect chemical composition of dietary fat on transcription of genes involved in lipid metabolism in adipose tissue and the liver via transcriptional profiling in growing pigs. A total of 48 Genetiporc 6.0 × Genetiporc F25 (PIC, Inc., Hendersonville, TN) barrows (initial BW of 44.1 ± 1.2 kg) were randomly allotted to 1 of 6 dietary treatments. Each experimental diet included 95% of a corn-soybean meal basal diet and 5% cornstarch (control; CNTR), animal-vegetable blend (AV), coconut oil (COCO), corn oil (COIL), fish oil (FO), or tallow (TAL)...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28794310/structured-mono-and-diacylglycerols-with-a-high-content-of-medium-chain-fatty-acids
#2
Alaina A Esperón-Rojas, R Baeza-Jiménez, Cynthia Cano-Sarmiento, Hugo S García
In the present work, direct enzyme-catalysed esterification of medium chain fatty acids (MCFA) from three different sources (Medium chain triacylglycerols, MCT; saponified MCT and a mixture of free MCFA) was evaluated to obtain structured mono- and diacylglycerols. The esterifications were carried out mixing the different sources of MCFA with glycerol at two weight ratios (1:1 and 4:1, w/w), using three immobilized lipases: Novozym 435, Lipozyme RM IM and Lipozyme TL IM; different reaction times (t = 0, 15, 30, 60, 120 min); enzyme loadings (5, 10 or 15% with respect to the total weight of substrates)...
August 8, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28782454/use-of-gifu-anaerobic-medium-for-culturing-32-dominant-species-of-human-gut-microbes-and-its-evaluation-based-on-short-chain-fatty-acids-fermentation-profiles
#3
Aina Gotoh, Misaki Nara, Yuta Sugiyama, Mikiyasu Sakanaka, Hiroyuki Yachi, Aya Kitakata, Akira Nakagawa, Hiromichi Minami, Shujiro Okuda, Toshihiko Katoh, Takane Katayama, Shin Kurihara
Recently, a "human gut microbial gene catalogue," which ranks the dominance of microbe genus/species in human fecal samples, was published. Most of the bacteria ranked in the catalog are currently publicly available; however, the growth media recommended by the distributors vary among species, hampering physiological comparisons among the bacteria. To address this problem, we evaluated Gifu anaerobic medium (GAM) as a standard medium. Forty-four publicly available species of the top 56 species listed in the "human gut microbial gene catalogue" were cultured in GAM, and out of these, 32 (72%) were successfully cultured...
August 7, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28758166/a-coconut-oil-rich-meal-does-not-enhance-thermogenesis-compared-to-corn-oil-in-a-randomized-trial-in-obese-adolescents
#4
Janna LaBarrie, Marie-Pierre St-Onge
BACKGROUND: Consumption of medium chain triglycerides (MCT) in overweight adults increases thermogenesis and improves weight management. Coconut oil is a rich natural source of MCT, but its thermogenic effect is unknown. Our study evaluated the effects of a test oil enriched in coconut oil, on energy expenditure, satiety, and metabolic markers in a randomized, double blind, cross-over study. METHODS AND FINDINGS: Fifteen children, age 13-18 years, body mass index >85th percentile for age and sex, were enrolled...
2017: Insights Nutr Metab
https://www.readbyqxmd.com/read/28753542/mri-in-medium-chain-acyl-coenzyme-a-dehydrogenase-deficiency-neuroimaging-during-the-first-month
#5
Lorenzo Figà Talamanca, Luca Pasquini, Antonio Napolitano, Daniela Longo
BACKGROUND: Medium-chain acyl-coenzyme A dehydrogenase (MCAD) is the most common genetic disorder of fatty acid oxidation, which presents before the age of 2 with the onset of acute hypoketotic hypoglycemia, and is typically precipitated by stress. CASE PRESENTATION: We report serial brain magnetic resonance imaging (MRI) changes, including MR spectroscopy (MRS) and diffusion weighted imaging (DWI), in a patient with a classical MCAD presentation, compared with five healthy controls...
August 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28750508/in-vitro-evidence-of-anti-inflammatory-and-anti-obesity-effects-of-medium-chain-fatty-acid-diacylglycerols
#6
Seungmin Yu, Jong Hun Choi, Hun Jung Kim, Soo Hyun Park, Gwang-Woong Go, Wooki Kim
Dietary approaches using structured lipids, including medium-chain fatty acids and diacylglycerols, have been adopted for the prevention of obesity-induced chronic inflammation. In an extension to previous studies, medium-chain fatty acid-diacylglycerol enriched dietary oil (MCDG) was prepared by interesterification of canola oil and medium-chain fatty acid-triacylglycerols. The consequent MCDG product was applied to RAW264.7 macrophages followed by the assessment of multiple inflammatory responses. Compared to conventionally used canola and olive oil controls, MCDG suppressed macrophage phagocytosis as assessed by the uptake of microsphere beads...
July 31, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28748224/utility-of-genetic-testing-for-confirmation-of-abnormal-newborn-screening-in-disorders-of-long-chain-fatty-acids-a-missed-case-of-carnitine-palmitoyltransferase-1a-cpt1a-deficiency
#7
Leah Dowsett, Lauren Lulis, Can Ficicioglu, Sanmati Cuddapah
An 18-month-old male was evaluated after presenting with disproportionately elevated liver transaminases in the setting of acute gastroenteritis. He had marked hepatomegaly on physical exam that was later confirmed with an abdominal ultrasound. Given this clinical picture, suspicion for a fatty acid oxidation disorder was raised. Further investigation revealed that his initial newborn screen was positive for carnitine palmitoyltransferase 1A (CPT1A) deficiency-a rare autosomal recessive disorder of long-chain fatty acid oxidation...
June 2017: International Journal of Neonatal Screening
https://www.readbyqxmd.com/read/28742009/megasphaera-hexanoica-sp-nov-a-medium-chain-carboxylic-acid-producing-bacterium-isolated-from-a-cow-rumen
#8
Byoung Seung Jeon, Seil Kim, Byoung-In Sang
Strain MHT, a strictly anaerobic, Gram-stain-negative, non-spore-forming, spherical coccus or coccoid-shaped microorganism, was isolated from a cow rumen during a screen for hexanoic acid-producing bacteria. The microorganism grew at 30-40 °C and pH 5.5-7.5 and exhibited production of various short- and medium-chain carboxylic acids (acetic acid, butyric acid, pentanoic acid, isobutyric acid, isovaleric acid, hexanoic acid, heptanoic acid and octanoic acid), as well as H2 and CO2 as biogas. Phylogenetic analysis based on 16S rRNA gene sequencing demonstrated that MHT represents a member of the genus Megasphaera, with the closest relatives being Megapsphaera indica NMBHI-10T (94...
July 26, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28740349/functional-lipidomics-in-patients-on-home-parenteral-nutrition-effect-of-lipid-emulsions
#9
Loris Pironi, Mariacristina Guidetti, Ornella Verrastro, Claudia Iacona, Federica Agostini, Caterina Pazzeschi, Anna Simona Sasdelli, Michele Melchiorre, Carla Ferreri
AIM: To investigate the fatty acid-based functional lipidomics of patients on long-term home parenteral nutrition receiving different intravenous lipid emulsions. METHODS: A cross-sectional comparative study was carried out on 3 groups of adults on home parenteral nutrition (HPN), receiving an HPN admixture containing an olive-soybean oil-based intravenous lipid emulsion (IVLE) (OO-IVLE; n = 15), a soybean- medium-chain triacylglycerol-olive-fish oil-based IVLE (SMOF-IVLE; n = 8) or HPN without IVLE (No-IVLE; n = 8) and 42 healthy controls (HCs)...
July 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28730958/engineering-synergistically-active-and-bioavailable-cost-effective-medicines-for-neglected-tropical-diseases-the-role-of-excipients
#10
Dolores R Serrano, Aikaterini Lalatsa, M Auxiliadora Dea-Ayuela
Leishmaniasis is a neglected tropical disease responsible for the ninth largest disease burden in the world threatening 350 million people mostly in developing countries. The lack of efficacy, severe adverse effects, long duration, high cost and parenteral administration of the current therapies result in poor patient compliance and emergence of resistance. Leishmaniasis' unmet need for safer, affordable and more effective treatments is only partly addressed by today's global health product pipeline that focuses on products amenable to rapid clinical development, mainly by reformulating or repurposing existing drugs for new uses...
July 19, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28727476/options-for-addressing-exocrine-pancreatic-insufficiency-in-patients-receiving-enteral-nutrition-supplementation
#11
Steven D Freedman
Patients with exocrine pancreatic insufficiency (EPI) have suboptimal secretion of pancreatic digestive enzymes and experience a range of clinical symptoms related to the malabsorption of fat. In patients with EPI unable to meet their nutritional requirements, enteral nutrition (EN) support is used to augment nutritional status. In addition to protein and carbohydrate, EN formulas contain fats as a calorie source, as well as vitamins and minerals to help prevent nutritional deficiencies related to malabsorption...
July 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28727189/inversion-of-cpadh5-enantiopreference-and-altered-chain-length-specificity-for-methyl-3-hydroxyalkanoates
#12
Yunus Ensari, Gaurao V Dhoke, Mehdi D Davari, Marco Bocola, Anna Joelle Ruff, Ulrich Schwaneberg
Expanding the substrate scope of enzymes opens up new routes for synthesis of valuable chemicals. Ketone-functionalized fatty acid derivatives and corresponding chiral alcohols are valuable building blocks for the synthesis of a variety of chemicals including pharmaceuticals. The alcohol dehydrogenase from Candida parapsilosis (cpADH5) catalyzes the reversible oxidations of chiral alcohols and has a broad substrate range; a challenge for cpADH5 is to convert alcohols with small substituents (methyl or ethyl) next to the oxidized alcohol moiety...
July 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28717897/development-of-a-fast-and-cost-effective-gas-chromatography-mass-spectrometry-method-for-the-quantification-of-short-chain-and-medium-chain-fatty-acids-in-human-biofluids
#13
Cesare Lotti, Josep Rubert, Francesca Fava, Kieran Tuohy, Fulvio Mattivi, Urska Vrhovsek
The quantification of short-chain and medium-chain fatty acids is becoming more and more relevant in fecal and plasma samples due to their biological impact, which has been associated with colon rectal cancer and fiber consumption. For these reasons, a fast, cost-effective, and reproducible analytical method is highly required. In this research, a gas chromatography-mass spectrometry method based on full scan and multiple reaction monitoring (MRM) acquisition modes were optimized and validated for the analysis of short-chain and medium-chain fatty acids in three biological samples: human fecal water, fecal fermentation supernatants, and human plasma...
July 17, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28711265/feeding-a-concentrate-rich-in-rapeseed-oil-improves-fatty-acid-composition-and-flavor-in-norwegian-goat-milk
#14
R A Inglingstad, S Skeie, G E Vegarud, T G Devold, Y Chilliard, M Eknæs
Impaired quality due to a high content of free fatty acids (FFA) and off-flavors has caused challenges in the development of Norwegian goat milk products. The present study aimed to examine the effect of lipid-supplemented concentrates on milk fat content, fatty acid composition, FFA, lipoprotein lipase activity, sensory properties, and size of milk fat globules of goat milk. Thirty goats assigned to 3 experimental groups were fed different concentrates from 60 d in milk (DIM) until late lactation (230 DIM)...
September 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28710833/effect-of-cellobiose-supplementation-on-in-vitro-fermentation-activity-and-bacterial-numbers-of-porcine-inocula
#15
S N Heinritz, E Weiss, J Seifert, R Mosenthin, S Kuß, A G Degenhardt, T J Koch
In this in vitro study, the modified Hohenheim gas test (HGT) was applied to determine fermentation activity and bacterial composition of pig's faecal microbial inoculum using different concentrations of cellobiose. Incubation procedures included normal buffered and osmotic stress conditions (elevated medium salinity). After 24 hr of fermentation, production of gas, ammonia and short-chain fatty acid (SCFA) was measured, and the gene copy numbers of total bacteria, Lactobacillus spp., Bifidobacterium spp., Roseburia spp...
July 15, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28707153/medium-chain-enriched-diacylglycerol-mce-dag-oil-decreases-body-fat-mass-in-mice-by-increasing-lipolysis-and-thermogenesis-in-adipose-tissue
#16
Haeun Kim, Jee-Hwan Choe, Jong Hun Choi, Hun Jung Kim, Soo Hyun Park, Moon Won Lee, Wooki Kim, Gwang-Woong Go
Medium chain fatty acid (MCFA) escapes the formation of chylomicrons in the small intestine, resulting in energy expenditure through beta-oxidation. Diacylglycerol (DAG) is susceptible to oxidation rather than being stored in the adipose tissue. This study was conducted to verify the effect of MCE-DAG oil on body fat mass in vivo. Male C57BL/6 mice were randomly assigned to four groups (n = 12) as follows: (1) normal diet (18% kcal from fat), (2) canola oil as a control (40% kcal from canola oil), (3) MCE-DAG10 (10% kcal from MCE-DAG + 30% kcal from canola oil), and (4) MCE-DAG20 (20% kcal from MCE-DAG + 20% kcal from canola oil)...
August 2017: Lipids
https://www.readbyqxmd.com/read/28704610/effects-of-medium-and-long-chain-triacylglycerols-on-lipid-metabolism-and-gut-microbiota-composition-in-c57bl-6j-mice
#17
Shengmin Zhou, Yueqiang Wang, Jörg J Jacoby, Yuanrong Jiang, Yaqiong Zhang, Liangli Lucy Yu
Obesity is related to an increasing risk of chronic diseases. Medium- and long-chain triacylglycerols (MLCT) have been recognized as a promising choice to reduce body weight. In this study, three MLCT with different contents of medium-chain fatty acids (MCFA) (10-30%, w/w) were prepared, and their effects on lipid metabolism and fecal gut microbiota composition of C57BL/6J mice were systematically investigated. MLCT with 30% (w/w) MCFA showed the best performance in decreasing body weight gain as well as optimizing serum lipid parameters and liver triacylglycerol content...
July 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28696788/investigation-of-medium-chain-fatty-acid-feed-supplementation-for-reducing-salmonella-typhimurium-colonization-in-turkey-poults
#18
Nicholas P Evans, David A Collins, Frank William Pierson, Hassan M Mahsoub, Nammalwar Sriranganathan, Mike E Persia, Theodore Peter Karnezos, Michael D Sims, Rami A Dalloul
Studies indicate that persistent Salmonella colonization occurs in poultry that are infected early in life, leading to both food safety and public health concerns. Development of improved preharvest Salmonella management strategies is needed to reduce poultry product contamination. The objective of this study was to evaluate the efficacy of a product containing medium chain fatty acids (MCFA) for reducing early Salmonella colonization in turkey poults. Day-of-hatch turkeys were provided a standard starter diet supplemented with MCFA at 0 (negative and positive controls), 1...
July 11, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28693220/remodeling-of-energy-metabolism-by-a-ketone-body-and-medium-chain-fatty-acid-suppressed-the-proliferation-of-ct26-mouse-colon-cancer-cells
#19
Yui Kadochi, Shiori Mori, Rina Fujiwara-Tani, Yi Luo, Yukiko Nishiguchi, Shingo Kishi, Kiyomu Fujii, Hitoshi Ohmori, Hiroki Kuniyasu
Normal and cancerous cells are suggested to have differential utilization of fatty acids and ketone bodies, which could be exploited in cancer therapy. The present study examined the effect of 3-hydroxybutyric acid (3-HBA), which is a ketone body generating acetyl-CoA, and lauric acid (LAA, C12:0), which is a medium-chain saturated fatty acid translocated to mitochondria in a carnitine-independent manner to produce acetyl-CoA, on the energy metabolism of mouse CT26 colon cancer cells. In CT26 cells expressing 3-HBA and LAA transporters, 3-HBA and LAA reduced cell proliferation, mitochondrial volume and lactate production, and increased oxidative stress, particularly in low-glucose conditions...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28691159/establishment-of-a-hepatocyte-line-for-studying-biosynthesis-of-long-chain-polyunsaturated-fatty-acids-from-a-marine-teleost-the-white-spotted-spinefoot-siganus-canaliculatus
#20
Y Liu, Q H Zhang, Y W Dong, C H You, S Q Wang, Y Q Li, Y Y Li
A hepatocyte line was established from the liver of white-spotted spinefoot Siganus canaliculatus to study the biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFA). The cells from the line, designated S. canaliculatus hepatocyte line (SCHL), grew and multiplied well in Dulbecco's modified Eagle's medium (DMEM)-F12 medium supplemented with 20 mM 4-(2-hydroxyethyl) piperazine-1-ethanesulphonic acid (HEPES), 10% foetal bovine serum (FBS) and 0·5% rainbow trout Oncorhychus mykiss serum at 28° C, showing an epithelial-like morphology and the normal chromosome number of 48 (2n) and have been subcultured for over 60 passages...
July 9, 2017: Journal of Fish Biology
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