keyword
MENU ▼
Read by QxMD icon Read
search

free fatty acid

keyword
https://www.readbyqxmd.com/read/27924218/sex-related-differences-in-the-associations-between-plasma-free-fatty-acid-levels-and-clinical-features-in-patients-with-hypertrophic-cardiomyopathy
#1
Chengzhi Yang, Changlin Zhang, Jiansong Yuan, Jingang Cui, Shengwen Liu, Fenghuan Hu, Weixian Yang, Xuanye Bi, Shubin Qiao
BACKGROUND: Previous studies have indicated that inefficient energy utilization may play a pivotal role in hypertrophic cardiomyopathy (HCM). However, whether plasma free fatty acid (FFA), a main energy substrate of heart, has an effect on HCM remains unclear. Besides, several studies have suggested sex-related differences in HCM features and FFA metabolism. Here, we aimed to explore the association between plasma FFA levels and HCM and potential effects of sex on this relation. METHODS: A total of 412 patients (age 47...
2016: Biology of Sex Differences
https://www.readbyqxmd.com/read/27919108/biocatalytic-synthesis-of-flavonoid-esters-by-lipases-and-their-biological-benefits
#2
Maria Elisa M B de Araújo, Yollanda E M Franco, Marcia C F Messias, Giovanna B Longato, João A Pamphile, Patricia de O Carvalho
Several studies have described important biological activities of flavonoids such as coronary heart disease prevention, hepatoprotective, anti-inflammatory and anticancer activities, enzyme inhibition activity, and antibacterial, antifungal, and antiviral activities. Flavonoids show promising activity as natural plant-based antioxidants due to their antioxidant and free radical scavenging properties. However, their primary applications as antioxidants in the pharmaceutical, cosmetic, and food industries are limited because of their moderately hydrophilic nature...
December 5, 2016: Planta Medica
https://www.readbyqxmd.com/read/27917957/refined-purification-strategy-for-reliable-proteomic-profiling-of-hdl2-3-impact-on-proteomic-complexity
#3
Michael Holzer, Sabine Kern, Ruth Birner-Grünberger, Sanja Curcic, Akos Heinemann, Gunther Marsche
Proteomics have extended the list of high-density lipoprotein (HDL) associated proteins to about 90. One of the major issues of global protein characterization is establishing specificity of association as opposed to contamination, a fact which has never been addressed for isolated HDL. We have developed a refined purification strategy to isolate HDL by density, followed by purification by size to generate "highly purified" fractions of HDL2/3, which allow the reliable quantification of the HDL proteome for biomarker discovery...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917506/comparative-in-vitro-toxicity-assessment-of-perfluorinated-carboxylic-acids
#4
Cecon T Mahapatra, Nur P Damayanti, Samuel C Guffey, Jennifer S Serafin, Joseph Irudayaraj, Maria S Sepúlveda
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are synthetic fluorinated compounds that are highly bioaccumulative and persistent organic pollutants. Perfluorooctanoic acid (PFOA), an eight-carbon chain perfluorinated carboxylic acid, was used heavily for the production of fluoropolymers, but concerns have led to its replacement by shorter carbon chain homologues such as perfluorohexanoic acid (PFHxA) and perfluorobutanoic acid (PFBA). However, limited toxicity data exist for these substitutes. We evaluated the toxicity of PFOA, PFHxA and PFBA on a zebrafish liver cell line and investigated the effects of exposure on cell metabolism...
December 5, 2016: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/27916118/an-in%C3%A2-vitro-approach-for-lipolysis-measurement-using-high-resolution-mass-spectrometry-and-partial-least-squares-based-analysis
#5
Wen-Qi Chang, Jian-Liang Zhou, Yi Li, Zi-Qi Shi, Li Wang, Jie Yang, Ping Li, Li-Fang Liu, Gui-Zhong Xin
The elevation of free fatty acids (FFAs) has been regarded as a universal metabolic signature of excessive adipocyte lipolysis. Nowadays, in vitro lipolysis assay is generally essential for drug screening prior to the animal study. Here, we present a novel in vitro approach for lipolysis measurement combining UHPLC-Orbitrap and partial least squares (PLS) based analysis. Firstly, the calibration matrix was constructed by serial proportions of mixed samples (blended with control and model samples). Then, lipidome profiling was performed by UHPLC-Orbitrap, and 403 variables were extracted and aligned as dataset...
January 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27915331/screening-of-bioactive-ingredients-in-ligusticum-chuanxiong-hort-for-protection-against-myocardial-ischemia
#6
Xu Liu, Xiuzhong Li, Songgang Ji, Xiaobo Cui, Mingchun Li
BACKGROUND/AIMS: To study the spectrum-effect relationship and effective components of Ligusticum Chuanxiong Hort. (LCH) on the protection of canine myocardial ischemia. METHODS: Fingerprint spectrum of LCH extracts was developed using high performance liquid chromatography (HPLC), and a canine model of acute myocardial ischemia was established by ligating the coronary artery. Bivariate correlation analysis and multivariate regression analysis were used to correlate the pharmacodynamics of LCH extract and its common peaks in HPLC...
December 5, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27914538/adaptive-response-of-rat-pancreatic-%C3%AE-cells-to-insulin-resistance-induced-by-monocrotophos-biochemical-evidence
#7
Raju Nagaraju, Padmanabhan Sharda Rajini
Our previous findings clearly suggested the role of duration of exposure to monocrotophos (MCP) in the development of insulin resistance. Rats exposed chronically to MCP developed insulin resistance with hyperinsulinemia without overt diabetes. In continuation of this vital observation, we sought to delineate the biochemical mechanisms that mediate heightened pancreatic β-cell response in the wake of MCP-induced insulin resistance in rats. Adult rats were orally administered (0.9 and 1.8mg/kgb.w/d) MCP for 180days...
November 2016: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/27914509/effects-of-docosahexaenoic-acid-supplementation-on-pufa-levels-in-red-blood-cells-and-plasma
#8
Jan Philipp Schuchardt, Annika I Ostermann, Lisa Stork, Laura Kutzner, Heike Kohrs, Theresa Greupner, Andreas Hahn, Nils Helge Schebb
INTRODUCTION: Polyunsaturated fatty acids (PUFA) are metabolized in a complex network of elongation, desaturation and beta oxidation. MATERIAL AND METHODS: The short (1 and 3 wk), and long term (6 and 12 wk) effect of 1076mg/d docosahexaenoic acid (DHA, free of eicosapentaenoic acid (EPA)) on (absolute) PUFA concentrations in plasma and red blood cells (RBC) of 12 healthy men (mean age 25.1±1.5 years) was investigated. RESULTS: RBC DHA concentrations significantly (p<0...
December 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27910756/fatty-acid-composition-of-different-collections-of-coprinoid-mushrooms-agaricomycetes-and-their-nutritional-and-medicinal-values
#9
Susanna M Badalyan
Qualitative and quantitative analyses of the free fatty acid (FA) composition of ethanol extracts obtained from mycelia of 30 genetically identified strains of 18 species of coprinoid mushrooms (CMs) or coprini belonging to clades Coprinellus (C. bisporus, C. curtus, C. disseminatus, C. domesticus, C. ellisii, C.flocculosus, C. micaceus, C. aff radians I, C. aff radians II, C. aff radians III, C. xanthothrix, Coprinellus sp. 4), Coprinopsis (C. cinerea, C. cothurnata, C. gonophylla, C. lagopides, C. maysoidispora, C...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27909717/restorative-effects-of-hydroxysafflor-yellow%C3%A2-a-on-hepatic-function-in-an-experimental-regression-model-of-hepatic-fibrosis-induced-by-carbon-tetrachloride
#10
Yanuo Li, Yan Shi, Yan Sun, Luying Liu, Xianyong Bai, Dong Wang, Hongxing Li
Hepatic fibrosis is a reversible pathological process, in which fibrotic tissue is excessively deposited in the liver during the repair process that follows hepatic injury. Early prevention or treatment of hepatic fibrosis has great significance on the treatment of chronic hepatic diseases. Hydroxysafflor yellow A (HSYA) is a water-soluble monomer extracted from safflower, which serves numerous pharmacological roles. However, it remains to be elucidated how HSYA regulates hepatic fibrogenesis. The aim of the present study was to reveal the possible mechanisms underlying the effects of HSYA on the prevention and treatment of hepatic fibrosis...
November 24, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27906714/central-nervous-system-regulation-of-hepatic-lipid-and-lipoprotein-metabolism
#11
Jennifer Taher, Sarah Farr, Khosrow Adeli
PURPOSE OF REVIEW: Hepatic lipid and lipoprotein metabolism is an important determinant of fasting dyslipidemia and the development of fatty liver disease. Although endocrine factors like insulin have known effects on hepatic lipid homeostasis, emerging evidence also supports a regulatory role for the central nervous system (CNS) and neuronal networks. This review summarizes evidence implicating a bidirectional liver-brain axis in maintaining metabolic lipid homeostasis, and discusses clinical implications in insulin-resistant states...
November 30, 2016: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27905210/erythrocyte-fatty-acid-composition-does-not-influence-levels-of-free-bioavailable-and-total-25-hydroxy-vitamin-d
#12
Martin Carlsson, Ingela Nilsson, Lars Brudin, Siv-Ping Von, Pär Wanby
In vitro, mono- and polyunsaturated fatty acids (FAs) may decrease the binding affinity of vitamin D metabolites for vitamin D-binding protein, which in turn may influence their bioavailability. FAs incorporated as phospholipids in erythrocyte (ery-) cell membranes reflect dietary intake. The purpose of this study was to investigate ery-FA composition in relation to markers for vitamin D. In healthy females (age 22.6 ± 2.0 years) total 25(OH)D was measured by LC-MS/MS (n = 78), free 25(OH)D with ELISA (n = 64 of 78), and bioavailable 25(OH)D was calculated...
December 1, 2016: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27904389/performance-of-different-natural-antioxidant-compounds%C3%A2-in-frying-oil
#13
Buket Aydenız, Emin Yilmaz
In this study, the natural green tea extract, purified lycopene, purified resveratrol and purified γ-oryzanol were added into peanut oil and their antioxidant performances were evaluated during frying. Moreover, the sensory properties of fried dough were evaluated to determine the consumption feasibility. All natural antioxidants led to significant increase in the stability of the oil samples. The ranges of measurements in the treatment groups were as follows: free acidity 0.1-2.9 g of oleic acid per 100 g of oil, conjugated dienes 0...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27904041/fatty-acid-%C3%AE-oxidation-plays-a-key-role-in-regulating-cis-palmitoleic-acid-levels-in-the-liver
#14
Kohei Kawabata, Minako Karahashi, Takeshi Sakamoto, Yukiho Tsuji, Tohru Yamazaki, Mari Okazaki, Atsushi Mitsumoto, Naomi Kudo, Yoichi Kawashima
Different monounsaturated fatty acid (MUFA) species have distinct pathophysiological activities. cis-Palmitoleic acid (16:1n-7) was previously reported to improve insulin sensitivity in animal studies. The proportions of hepatic MUFAs are generally considered to reflect changes in the activities of fatty acid modifications (∆9 desaturation and fatty acid elongation). However, hepatic levels of 16:1n-7 are markedly lower than those of oleic acid (18:1n-9). Nevertheless, no convincing explanation has yet been provided for the low level of 16:1n-7...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27902302/polynucleobacter-wuianus-sp-nov-a-free-living-freshwater-bacterium-affiliated-with-the-cryptic-species-complex-pnecc
#15
Martin W Hahn, Lesley R Huymann, Ulrike Koll, Johanna Schmidt, Elke Lang, Matthias Hoetzinger
Strain QLW-P1FAT50C-4T, isolated from a shallow acidic freshwater pond located in the Austrian Alps at an altitude of 1300 m, was characterized by investigation of phenotypic, chemotaxonomic and genomic traits. As shown previously, phylogenetic analyses based on 16S rRNA gene sequences place the strain in the cryptic species complex PnecC within the genus Polynucleobacter. The major fatty acids of the strain were C16:1 ω7c and C18:1 ω7c. The strain has a genome of 2.23 Mbp with a GC content of 44.9 mol%. The strain encodes a seemingly complete gene cluster for anoxygenic photosynthesis but lacks typical genes for CO2 assimilation...
November 2, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902265/oharaeibacter-diazotrophicus-gen-nov-sp-nov-a-diazotrophic-and-facultatively-methylotrophic-bacterium-isolated-from-rice-rhizosphere
#16
Haoxin Lv, Sachiko Masuda, Yoshiko Fujitani, Nurettin Sahin, Akio Tani
A new facultative methanol-utilizing bacterial strain SM30T was isolated from rice rhizosphere. Strain SM30T was Gram-stain negative, aerobic, motile, short rod, and grows optimally at pH 7 and at 28°C. It can tolerate 0 to 2% concentration of NaCl. Based on 16S rRNA gene sequence comparisons, strain SM30T was most closely related to Pleomorphomonas oryzae DSM 16300T, with low similarity of 94.17%. As one of the lanthanide metals, lanthanum could enhance its growth on methanol slightly. Phylogenetic trees based on mxaF, xoxF, and cpn60 genes of SM30T showed its distinct phylogenetic positions with known species...
November 14, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27899996/quantitative-label-free-mass-spectrometry-analysis-of-formalin-fixed-paraffin-embedded-tissue-representing-the-invasive-cutaneous-malignant-melanoma-proteome
#17
Paul Dowling, Benvon Moran, Edel McAuley, Paula Meleady, Michael Henry, Martin Clynes, Mairin McMenamin, Niamh Leonard, Mary Monks, Bairbre Wynne, Patrick Ormond, Annemarie Larkin
Understanding the events at a protein level that govern the progression from melanoma in situ to invasive melanoma are important areas of current research to be developed. Recent advances in the analysis of formalin-fixed, paraffin-embedded tissue by proteomics, particularly using the filter-aided sample preparation protocol, has opened up the possibility of studying vast archives of clinical material and associated medical records. In the present study, quantitative protein profiling was performed using tandem mass spectrometry, and the proteome differences between melanoma in situ and invasive melanoma were compared...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27896586/effect-of-berberine-on-the-ratio-of-high-molecular-weight-adiponectin-to-total-adiponectin-and-adiponectin-receptors-expressions-in-high-fat-diet-fed-rats
#18
Yue-Yue Wu, Ying Zha, Jun Liu, Fang Wang, Jiong Xu, Zao-Ping Chen, He-Yuan Ding, Li Sheng, Xiao-Jie Han
OBJECTIVE: To assess the effects of berberine (BBR) on high-molecular weight (HMW) adiponectin and adiponectin receptors (adipoR1/adipoR2) expressions in high-fat (HF) diet fed rats. METHODS: Forty Wistar male rats were randomly assigned into a normal diet fed group and three HF diet (fat for 45% calories) fed groups (n=10 for each group). All rats underwent 12 weeks of feeding. After 4 weeks feeding, rats in the two of three HF diet fed groups were treated with 150 mg·kg(-1)·day(-1) BBR (HF+LBBR group) and 380 mg·kg(-1)·day(-1) BBR (HF+HBBR group) by gavage once a day respectively for the next 8 weeks while the rats in other groups treated with vehicle (NF+Veh and HF+Veh)...
November 17, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27896302/data-on-the-uptake-and-metabolism-of-the-vertebrate-steroid-estradiol-17%C3%AE-from-water-by-the-common-mussel-mytilus-spp
#19
Tamar I Schwarz, Ioanna Katsiadaki, Benjamin H Maskrey, Alexander P Scott
The data presented in this article primarily provide support for the research article entitled "Mussels (Mytilus spp.) display an ability for rapid and high capacity uptake of the vertebrate steroid, estradiol-17β from water" (T.I. Schwarz, I. Katsiadaki, B.H. Maskrey, A.P. Scott, 2016) [1]. Data are presented on the ability of mussels to absorb tritiated estradiol (E2) from water. The data indicate that most of the radioactivity remaining in the water is 1,3,5(10)-estratriene-3,17β-diol 3-sulfate (E2 3-S) and the radioactivity in the mussel tissue is mainly in the form of fatty acid esters...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27893806/hplc-based-mass-spectrometry-characterizes-the-phospholipid-alterations-in-ether-linked-lipid-deficiency-models-following-oxidative-stress
#20
Robin Drechsler, Shaw-Wen Chen, Blair C R Dancy, Lena Mehrabkhani, Carissa Perez Olsen
Despite the fact that the discovery of ether-linked phospholipids occurred nearly a century ago, many unanswered questions remain concerning these unique lipids. Here, we characterize the ether-linked lipids of the nematode with HPLC-MS/MS and find that more than half of the phosphoethanolamine-containing lipids are ether-linked, a distribution similar to that found in mammalian membranes. To explore the biological role of ether lipids in vivo, we target fatty acyl-CoA reductase (fard-1), an essential enzyme in ether lipid synthesis, with two distinct RNAi strategies...
2016: PloS One
keyword
keyword
67059
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"