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Lipids

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https://www.readbyqxmd.com/read/29134469/erratum-to-mechanism-of-phospholipid-hydrolysis-for-oyster-crassostrea-plicatula-phospholipids-during-storage-using-shotgun-lipidomics
#1
Qinsheng Chen, Xincen Wang, Peixu Cong, Yanjun Liu, Yuming Wang, Jie Xu, Changhu Xue
Erratum to: Lipids https://doi.org/10.1007/s11745-017-4305-7.
November 13, 2017: Lipids
https://www.readbyqxmd.com/read/29094255/tissue-uptake-mechanisms-involved-in-the-clearance-of-non-protein-nanoparticles-that-mimic-ldl-composition-a-study-with-knockout-and-transgenic-mice
#2
Elaine N Daminelli, Panagiotis Fotakis, Carlos H Mesquita, Raul C Maranhão, Vassilis I Zannis
Lipid core nanoparticles (LDE) resembling LDL behave similarly to native LDL when injected in animals or subjects. In contact with plasma, LDE acquires apolipoproteins (apo) E, A-I and C and bind to LDL receptors. LDE can be used to explore LDL metabolism or as a vehicle of drugs directed against tumoral or atherosclerotic sites. The aim was to investigate in knockout (KO) and transgenic mice the plasma clearance and tissue uptake of LDE labeled with (3)H-cholesteryl ether. LDE clearance was lower in LDLR KO and apoE KO mice than in wild type (WT) mice (p < 0...
November 1, 2017: Lipids
https://www.readbyqxmd.com/read/29080057/sex-differences-in-blood-hdl-c-the-total-cholesterol-hdl-c-ratio-and-palmitoleic-acid-are-not-associated-with-variants-in-common-candidate-genes
#3
Shannon L Klingel, Kaitlin Roke, Bertha Hidalgo, Stella Aslibekyan, Robert J Straka, Ping An, Michael A Province, Paul N Hopkins, Donna K Arnett, Jose M Ordovas, Chao-Qiang Lai, David M Mutch
Blood lipids are associated with cardiovascular disease (CVD) risk. Moreover, circulating lipid and fatty acid levels vary between men and women, and evidence demonstrates these traits may be influenced by single nucleotide polymorphisms (SNP). Sex-genotype interactions related to blood lipids and fatty acids have been poorly investigated and may help elucidate sex differences in CVD risk. The goal of this study was to investigate if the influence of SNPs previously associated with blood lipids and fatty acids varies in a sex-specific manner...
October 27, 2017: Lipids
https://www.readbyqxmd.com/read/29058169/chronic-exercise-reduces-cetp-and-mesterolone-treatment-counteracts-exercise-benefits-on-plasma-lipoproteins-profile-studies-in-transgenic-mice
#4
Andrea Camargo Casquero, Jairo Augusto Berti, Laura Lauand Sampaio Teixeira, Helena Coutinho Franco de Oliveira
Regular exercise and anabolic androgenic steroids have opposing effects on the plasma lipoprotein profile and risk of cardio-metabolic diseases in humans. Studies in humans and animal models show conflicting results. Here, we used a mice model genetically modified to mimic human lipoprotein profile and metabolism. They under-express the endogenous LDL receptor gene (R1) and express a human transgene encoding the cholesteryl ester transfer protein (CETP), normally absent in mice. The present study was designed to evaluate the independent and interactive effects of testosterone supplementation, exercise training and CETP expression on the plasma lipoprotein profile and CETP activity...
October 20, 2017: Lipids
https://www.readbyqxmd.com/read/29030734/erratum-to-inhibition-of-angiotensin-ii-induced-cardiac-fibrosis-by-atorvastatin-in-adiponectin-knockout-mice
#5
Sun Young Choi, Jong Sung Park, Mee Sook Roh, Chong-Rak Kim, Moo Hyun Kim, Victor Serebruany
In the original published article, Victor Serebruany was designated as the corresponding author in error. The corresponding author is Jong Sung Park. Dr. Park can be reached by email at thinkmed@dau.ac.kr.
October 13, 2017: Lipids
https://www.readbyqxmd.com/read/28975480/mechanism-of-phospholipid-hydrolysis-for-oyster-crassostrea-plicatula-phospholipids-during-storage-using-shotgun-lipidomics
#6
Qinsheng Chen, Xincen Wang, Peixu Cong, Yanjun Liu, Yuming Wang, Jie Xu, Changhu Xue
A fast and efficient shotgun lipidomics strategy was applied to analyze phospholipids (PL) in the oyster Crassostrea plicatula, including 29 species of phosphatidylcholine (PtdCho), 23 species of phosphatidylethanolamine (PtdEtn), 11 species of phosphatidylserine (PtdSer), 6 species of phosphatidylinositol (PtdIns), and 17 species of lysophospholipids (Lyso-PL). During storage at 4 °C for 7 days, the PL content decreased by 68.08%, but a significant increase in the FFA content was observed (from 63.11 to 318...
October 3, 2017: Lipids
https://www.readbyqxmd.com/read/28965211/fatty-acid-composition-and-contents-of-seven-commercial-fish-species-of-genus-coregonus-from-russian-subarctic-water-bodies
#7
Michail I Gladyshev, Nadezhda N Sushchik, Olesia N Makhutova, Larisa A Glushchenko, Anastasia E Rudchenko, Alexander A Makhrov, Elena A Borovikova, Yury Y Dgebuadze
In several Russian northern lakes and rivers, Arctic cisco Coregonus autumnalis, least cisco C. sardinella, peled C. peled, tugun C. tugun, broad whitefish C. nasus, whitefish C. lavaretus and vendace C. albula were sampled in periods of officially permitted commercial fishery. Special attention was paid to contents (mg g(-1) of wet weight) of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in muscle tissues (filets), which are essential for human nutrition. The highest values of EPA + DHA content in semi-anadromous fish and freshwater fish were recorded for C...
September 30, 2017: Lipids
https://www.readbyqxmd.com/read/28956235/total-synthesis-and-structural-elucidation-of-two-unusual-non-methylene-interrupted-fatty-acids-in-ovaries-of-the-limpet-cellana-toreuma
#8
Kazuaki Shimada, Ayako Sugawara, Toshinobu Korenaga, Hideki Kawashima
In our previous study, unusual odd-numbered dienoic acids with a terminal olefin were found as minor components in ovaries of the Japanese limpet Cellana toreuma, and the synthetic interests have been focused onto their structural confirmation and the inspection into their potential biological activity. Here, we describe an efficient and stereoselective total synthesis of two new unusual dienoic acids, 19:2∆7,18 and 21:2∆7,20, through a common pathway involving the strategic combination of alkyne-zipper reaction and Lindlar hydrogenation for the construction of their unique carbon chains...
September 27, 2017: Lipids
https://www.readbyqxmd.com/read/28940111/hyperuricemia-is-associated-with-increased-apo-ai-fractional-catabolic-rates-and-dysfunctional-hdl-in-new-zealand-rabbits
#9
Miriam Martínez-Ramírez, Cristóbal Flores-Castillo, L Gabriela Sánchez-Lozada, Rocío Bautista-Pérez, Elizabeth Carreón-Torres, José Manuel Fragoso, José Manuel Rodriguez-Pérez, Fernando E García-Arroyo, Victoria López-Olmos, María Luna-Luna, Gilberto Vargas-Alarcón, Martha Franco, Oscar Pérez-Méndez
The potential cause-effect relationship between uric acid plasma concentrations and HDL functionality remains elusive. Therefore, this study aimed to explore the effect of oxonic acid (OA)-induced hyperuricemia on the HDL size distribution, lipid content of HDL subclasses, and apo AI turnover, as well as HDL functionality in New Zealand white rabbits. Experimental animals received OA 750 mg/kg/day by oral gavage during 21 days. The HDL-apo AI fractional catabolic rate (FCR) was determined by exogenous labeling with (125)I, and HDL subclasses were determined by sequential ultracentrifugation and PAGE...
September 22, 2017: Lipids
https://www.readbyqxmd.com/read/28905226/identification-and-characterization-of-phospholipids-with-very-long-chain-fatty-acids-in-brewer-s-yeast
#10
Tomáš Řezanka, Irena Kolouchová, Lucia Gharwalová, Andrea Palyzová, Karel Sigler
Yeast lipids and fatty acids (FA) were analyzed in Saccharomyces pastorianus from seven breweries and in the dietary yeast supplement Pangamin. GC-MS identified more than 30 FA, half of which were very-long chain fatty acids (VLCFA) with hydrocarbon chain lengths of ≥22 C atoms. Positional isomers ω-9 and ω-7 were identified in FA with C18-C28 even-numbered alkyl chains. The most abundant ω-7 isomer was cis-vaccenic acid. The structure of monounsaturated FA was proved by dimethyl disulfide adducts (position of double bonds and cis geometric configuration) and by GC-MS of pyridyl carbinol esters...
September 13, 2017: Lipids
https://www.readbyqxmd.com/read/28853039/erratum-to-assessment-of-the-validity-and-reproducibility-of-a-novel-standardized-test-meal-for-the-study-of-postprandial-triacylglycerol-concentrations
#11
Nikolaos Tentolouris, Panagiotis T Kanellos, Evangelia Siami, Elpida Athanasopoulou, Nikolaos Chaviaras, Genovefa Kolovou, Petros P Sfikakis, Nikolaos Katsilambros
No abstract text is available yet for this article.
August 29, 2017: Lipids
https://www.readbyqxmd.com/read/29058170/pam-ola-and-lna-are-differentially-taken-up-and-trafficked-via-different-metabolic-pathways-in-porcine-adipocytes
#12
Caihua Yu, Lingling Xi, Jin Chen, Qin Jiang, Hongbo Yi, Yizhen Wang, Xinxia Wang
Dietary fatty acids have different effects on fat deposition in pigs. To clarify the underlying mechanisms of this difference, we compared the metabolism of palmitic (PAM, saturated), oleic (OLA, monounsaturated) and linoleic acid (LNA, polyunsaturated) in porcine adipocytes treated with 100 μM PAM, OLA or LNA. We observed that the adipocytes incubated with LNA accumulated more lipids compared with those treated with PAM and OLA. We then probed the metabolism of these fatty acids in porcine adipocytes by using isotope-labelled fatty acids...
November 2017: Lipids
https://www.readbyqxmd.com/read/29032410/relationship-between-circulating-fatty-acids-and-fatty-acid-ethanolamide-levels-after-a-single-2-h-dietary-fat-feeding-in-male-sprague-dawley-rats-elevated-levels-of-oleoylethanolamide-palmitoylethanolamide-linoleoylethanolamide-arachidonoylethanolamide-and
#13
Anthonia O Olatinsu, Jyoti Sihag, Peter J H Jones
Previous studies show that long term variations in dietary fat consumption impact circulating fatty acid ethanolamide (FAE) concentrations, however, few studies have investigated short term effects of dietary fat feeding on FAE levels. The trial's objective was to explore the effect of acute feeding of varying amounts of dietary n-9 and n-3 fatty acids on plasma and organ levels of FAE. Sixty-four rats were assigned to four groups fed meals containing 40% of energy as either safflower oil (control), canola oil (CO), or DHA rich oil (DRO), each consumed as a bolus within a 2-h window...
November 2017: Lipids
https://www.readbyqxmd.com/read/28965254/lipid-metabolism-is-closely-associated-with-normal-testicular-growth-based-on-global-transcriptome-profiles-in-normal-and-underdeveloped-testis-of-obese-zucker-fa-fa-rats
#14
Jutika Datar, Alemu Regassa, Woo-Kyun Kim, Carla G Taylor, Peter Zahradka, Miyoung Suh
Zucker (fa/fa) obese rats often have non-identical and differently sized paired testes, leaving one testis underdeveloped. Our earlier study found that the underdeveloped testes, > 30% smaller than the normal ones, have a selective decrease in docosapentaenoic acid (22:5n-6), a dominant fatty acid in the testes. This study was conducted to examine global testicular transcriptome profile in underdeveloped testes relative to developed ones using Rat Gene 2.0 ST Array (Affymetrix, USA). Testes were obtained from 14-week-old, sexually mature male obese (fa/fa) Zucker rats...
November 2017: Lipids
https://www.readbyqxmd.com/read/28956299/total-long-chain-n-3-fatty-acid-intake-and-food-sources-in-the-united-states-compared-to-recommended-intakes-nhanes-2003-2008
#15
Chesney K Richter, Kate J Bowen, Dariush Mozaffarian, Penny M Kris-Etherton, Ann C Skulas-Ray
The American Heart Association recommends consuming fish (particularly oily fish) at least two times per week, which would provide ≈ 0.5 g/day of eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) for cardiovascular disease risk reduction. Previous analyses indicate that this recommendation is not being met; however, few studies have assessed different ethnicities, subpopulations requiring additional n-3 fatty acid intake (i.e., children and pregnant and/or lactating women), or deciles of intake...
November 2017: Lipids
https://www.readbyqxmd.com/read/28942573/berberine-inhibits-oxygen-consumption-rate-independent-of-alteration-in-cardiolipin-levels-in-h9c2-cells
#16
Wenguang Chang, Ming Zhang, Li Chen, Grant M Hatch
Small clinical studies have shown that oral treatment with the plant alkaloid berberine (BBR) reduces blood glucose levels similar to that of metformin and have promoted its use as a novel anti-diabetic therapy. However, in vitro studies have shown that high concentrations of BBR potently inhibit cell proliferation through inhibition of mitochondrial function. Cardiolipin (Ptd2Gro) is a key phospholipid required for regulating mitochondrial bioenergetic function. We examined if BBR inhibited oxygen consumption rate in H9c2 cardiac myocytes through alteration in Ptd2Gro metabolism...
November 2017: Lipids
https://www.readbyqxmd.com/read/28921416/mir-17-5p-regulates-differential-expression-of-ncoa3-in-pig-intramuscular-and-subcutaneous-adipose-tissue
#17
Haiyin Han, Shuhua Gu, Weiwei Chu, Wenxing Sun, Wei Wei, Xiaoyong Dang, Ye Tian, Kaiqing Liu, Jie Chen
Fat distribution affects economic value in pork production. Intramuscular adipose tissue (IMAT) improves meat quality, whereas subcutaneous adipose tissue (SCAT) is usually regarded as waste. In the present study, we analyzed IMAT/SCAT (I/S) ratios in each pig. Individuals selected from a population of 1200 Suhuai pigs were divided into two cohorts; those with high I/S ratios and those with low I/S ratios, and correlations between nuclear Receptor Co-activator 3 (NCOA3), a critical gene involved in regulating fat accumulation, and fat distribution were investigated...
November 2017: Lipids
https://www.readbyqxmd.com/read/28916975/flaxseed-oil-supplementation-improve-gene-expression-levels-of-ppar-%C3%AE-lp-a-il-1-and-tnf-%C3%AE-in-type-2-diabetic-patients-with-coronary-heart-disease
#18
Ali Akbar Hashemzadeh, Nikoo Nasoohi, Fariba Raygan, Esmat Aghadavod, Elmira Akbari, Mohsen Taghizadeh, Mohammad Reza Memarzadeh, Zatollah Asemi
This study was carried out to determine the effects of flaxseed oil administration on gene expression levels related to insulin, lipid and inflammation in overweight diabetic patients with coronary heart disease (CHD). This randomized double-blind, placebo-controlled trial was conducted among 60 diabetic patients with CHD. Subjects were randomly allocated into two groups to intake either 1000 mg n-3 fatty acid from flaxseed oil containing 400 mg α-Linolenic acid [ALA (18:3n-3)] (n = 30) or placebo (n = 30) twice a day for 12 weeks...
November 2017: Lipids
https://www.readbyqxmd.com/read/28875399/interplay-between-n-3-and-n-6-long-chain-polyunsaturated-fatty-acids-and-the-endocannabinoid-system-in-brain-protection-and-repair
#19
REVIEW
Simon C Dyall
The brain is enriched in arachidonic acid (ARA) and docosahexaenoic acid (DHA), long-chain polyunsaturated fatty acids (LCPUFAs) of the n-6 and n-3 series, respectively. Both are essential for optimal brain development and function. Dietary enrichment with DHA and other long-chain n-3 PUFA, such as eicosapentaenoic acid (EPA), has shown beneficial effects on learning and memory, neuroinflammatory processes, and synaptic plasticity and neurogenesis. ARA, DHA and EPA are precursors to a diverse repertoire of bioactive lipid mediators, including endocannabinoids...
November 2017: Lipids
https://www.readbyqxmd.com/read/28889206/dietary-fatty-acid-composition-modulates-obesity-and-interacts-with-obesity-related-genes
#20
REVIEW
Shatha S Hammad, Peter J Jones
The prevalence of obesity is skyrocketing worldwide. The scientific evidence has associated obesity risk with many independent factors including the quality of dietary fat and genetics. Dietary fat exists as the main focus of dietary guidelines targeting obesity reduction. To prevent/minimize the adipogenic effect of dietary fatty acids (FA), intakes of long-chain saturated- and trans-FA should be reduced and substituted with unsaturated FA. The optimal proportions of dietary unsaturated FA are yet to be defined, along with a particular emphasis on the need to achieve a balanced ratio of n-3:n-6 polyunsaturated FA and to increase monounsaturated FA consumption at the expense of saturated FA...
October 2017: Lipids
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