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Polyunsaturated Fat

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https://www.readbyqxmd.com/read/28229279/immune-dysfunction-and-increased-oxidative-stress-state-in-diet-induced-obese-mice-are-reverted-by-nutritional-supplementation-with-monounsaturated-and-n-3-polyunsaturated-fatty-acids
#1
Caroline Hunsche, Oskarina Hernandez, Alina Gheorghe, Ligia Esperanza Díaz, Ascensión Marcos, Mónica De la Fuente
PURPOSE: Obesity is associated with impaired immune defences and chronic low levels of inflammation and oxidation. In addition, this condition may lead to premature aging. The aim of the study was to evaluate the effects of a nutritional supplementation with monounsaturated and n-3 polyunsaturated fatty acids on several functions and oxidative stress parameters in peritoneal immune cells of obese mice, as well as on the life span of these animals. METHODS: Obesity was induced in adult female ICR/CD1 by the administration of a high-fat diet (HFD) for 14 weeks...
February 23, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28205317/oxidative-stress-and-immunosenescence-in-spleen-of-obese-mice-can-be-reversed-by-2-hydroxyoleic-acid
#2
Alina Gheorghe, Fátima Pérez de Heredia, Caroline Hunsche, Noemí Redondo, Ligia Esperanza Díaz, Oskarina Hernández, Ascensión Marcos, Mónica De la Fuente
We aimed to investigate the effects of obesity on oxidative stress and leukocyte function in spleen of mice, and to assess whether supplementation with 2-hydroxyoleic acid (2-OHOA) or n-3 polyunsaturated fatty acids (PUFA) could reverse those effects. Female ICR/CD1 mice (8 weeks old, n = 24) received an obesogenic diet (22% fat for 4 weeks and 60% fat for 14 weeks). After 6 weeks, mice were split in three groups (n = 8/group): no supplementation, 2-OHOA supplementation (1500 mg kg(-1) ) and n-3 PUFA supplementation (EPA + DHA, 3000 mg kg(-1) diet)...
February 15, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28195222/rna-seq-based-detection-of-differentially-expressed-genes-in-the-skeletal-muscle-of-duroc-pigs-with-distinct-lipid-profiles
#3
T F Cardoso, A Cánovas, O Canela-Xandri, R González-Prendes, M Amills, R Quintanilla
We have used a RNA-seq approach to investigate differential expression in the skeletal muscle of swine (N = 52) with divergent lipid profiles i.e. HIGH (increased intramuscular fat and muscle saturated and monounsaturated fatty acid contents, higher serum lipid concentrations and fatness) and LOW pigs (leaner and with an increased muscle polyunsaturated fatty acid content). The number of mRNAs and non-coding RNAs (ncRNAs) expressed in the porcine gluteus medius muscle were 18,104 and 1,558, respectively...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183443/improvement-of-the-omega-3-index-of-healthy-subjects-does-not-alter-the-effects-of-dietary-saturated-fats-or-n-6pufa-on-ldl-profiles
#4
Cintia B Dias, Núria Amigó, Lisa G Wood, Roger Mallol, Xavier Correig, Manohar L Garg
BACKGROUND AND AIMS: Dietary fat composition is known to modulate circulating lipid and lipoprotein levels. Although supplementation with long chain omega-3 polyunsaturated fatty acids (LCn-3PUFA) has been shown to reduce plasma triglyceride levels, the effect of the interactions between LCn-3PUFA and the major dietary fats consumed has not been previously investigated. METHODS: In a randomized controlled parallel design clinical intervention, we examined the effect of diets rich in either saturated fatty acids (SFA) or omega-6 polyunsaturated fatty acids (n-6PUFA) on plasma lipid levels and lipoprotein profiles (lipoprotein size, concentration and distribution in subclasses) in subjects with an adequate omega 3 index...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28183305/controlling-of-growth-performance-lipid-deposits-and-fatty-acid-composition-of-chicken-meat-through-a-probiotic-lactobacillus-johnsonii-during-subclinical-clostridium-perfringens-infection
#5
Hesong Wang, Xueqin Ni, Lei Liu, Dong Zeng, Jing Lai, Xiaodan Qing, Guangyao Li, Kangcheng Pan, Bo Jing
BACKGROUND: Meat is considered as a major source of polyunsaturated fatty acid (PUFA) which is essential for humans, therefore its lipid level and fatty acid composition have drawn great attention. As no clinical sign can be found in chicks subclinically infected by Clostridium perfringens (CP), the meat may be purchased and eaten. The objective of the present study was to determine whether Lactobacillus johnsonii (LJ) can control the CP-caused impact on growth, lipid levels, fatty acid composition and other flavor or nutritional quality in the meat...
February 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28179493/nutritional-and-lipid-modulation-of-pcsk9-effects-on-cardiometabolic-risk-factors
#6
REVIEW
Jacqueline A Krysa, Teik Chye Ooi, Spencer D Proctor, Donna F Vine
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a serine protease involved in the regulation of LDL receptor (LDLR) expression and apolipoprotein B lipoprotein cholesterol metabolism. Hepatic PCSK9 protein expression, activity, and secretion have been shown to affect cholesterol homeostasis. An upregulation of hepatic PSCK9 protein leads to increased LDLR degradation, resulting in decreased uptake of apoB lipoproteins and a consequent increase in the plasma concentration of these lipoproteins, including LDL and chylomicron remnants...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28177707/dietary-fish-oil-delays-hypoxic-skeletal-muscle-fatigue-and-enhances-caffeine-stimulated-contractile-recovery-in-the-rat-in-vivo-hindlimb
#7
Gregory E Peoples, Peter L McLennan
Oxygen efficiency influences skeletal muscle contractile function during physiological hypoxia. Dietary fish oil, providing docosahexaenoic acid (DHA), reduces the oxygen cost of muscle contraction. This study used autologous perfused rat hindlimb model to examine the effects of a fish oil diet on skeletal muscle fatigue during an acute hypoxic challenge. Male Wistar rats were fed a diet rich in saturated fat (SF), long chain (LC) n-6 polyunsaturated fatty acids (n-6 PUFA), or LC n-3 PUFA DHA from fish oil (FO) (8weeks)...
January 26, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28173808/omega-3-fatty-acids-and-oxidative-stability-of-ice-cream-supplemented-with-olein-fraction-of-chia-salvia-hispanica-l-oil
#8
Rahman Ullah, Muhammad Nadeem, Muhammad Imran
BACKGROUND: Chia (Salvia hispanica L.) has been regarded as good source of polyunsaturated omega-3 fatty acids with cardiac, hepatic, hypotensive, antiallergic and antidiabetic role. Concentration of omega-3 fatty acids in chia oil can be enhanced by fractionation. Olein/low melting fraction of chia oil has higher concentration of omega-3 fatty acids. Therefore, main objective of current investigation was determination of various concentration effect of olein fraction of chia oil on omega-3 fatty acids, oxidative stability and sensory characteristics of ice cream...
February 7, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28168180/association-between-nutrient-intake-and-metabolic-syndrome-in-patients-with-colorectal-cancer
#9
Hee-Sook Lim, Eung-Jin Shin, Jeong-Won Yeom, Yoon-Hyung Park, Soon-Kyung Kim
The purpose of this study was to investigate the difference of nutritional status according to metabolic syndrome in colorectal cancer patients. The subjects were divided into 2 groups (metabolic syndrome group and normal group) according to the presence or absence of metabolic syndrome in 143 patients diagnosed with colorectal cancer, and their lifestyle and nutritional status were analyzed. Recall method was used for the dietary survey, and metabolic syndrome was defined as the presence of 3 or more of waist circumference, fasting blood glucose, triglyceride, high-density lipoprotein (HDL)-cholesterol, and blood pressure...
January 2017: Clinical Nutrition Research
https://www.readbyqxmd.com/read/28165385/quantitative-profiling-of-hydroxy-lipid-metabolites-in-mouse-organs-reveals-distinct-lipidomic-profiles-and-modifications-due-to-elevated-n-3-fatty-acid-levels
#10
Cheng-Ying Chiu, Christopher Smyl, Inci Dogan, Michael Rothe, Karsten-H Weylandt
Polyunsaturated fatty acids (PUFA) are precursors of bioactive metabolites and mediators. In this study, the profile of hydroxyeicosatetraenoic (HETE), hydroxyeicosapentaenoic (HEPE) and hydroxydocosahexaenoic (HDHA) acids derived from arachidonic acid (AA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in colon, liver, lung, spleen, muscle, heart and kidney tissue of healthy wildtype mice were characterized, and compared to profiles in organs from transgenic fat-1 mice engineered to express the Caenorhabditis elegans fat-1 gene encoding an n-3 desaturase and thereby with endogenously elevated n-3 PUFA levels...
February 4, 2017: Biology
https://www.readbyqxmd.com/read/28163916/effects-of-total-replacement-of-corn-silage-with-sorghum-silage-on-milk-yield-composition-and-quality
#11
M Cattani, N Guzzo, R Mantovani, L Bailoni
BACKGROUND: In the last years, difficulties occurring in corn cultivation (i.e., groundwater shortages, mycotoxin contamination) have been forcing dairy farmers to consider alternative silages. Some experiments conducted on lactating cows have proven that the total replacement of corn silage with sorghum silage did not reduce milk yield. However, this kind of substitution involves supplementing sorghum-based diets with grains, to compensate for the lower starch content of sorghum silage compared to corn silage...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28161181/effects-of-bacterial-direct-fed-microbials-on-ruminal-characteristics-methane-emission-and-milk-fatty-acid-composition-in-cows-fed-high-or-low-starch-diets
#12
C Philippeau, A Lettat, C Martin, M Silberberg, D P Morgavi, A Ferlay, C Berger, P Nozière
This study investigated the effects of bacterial direct-fed microbials (DFM) on ruminal fermentation and microbial characteristics, methane (CH4) emission, diet digestibility, and milk fatty acid (FA) composition in dairy cows fed diets formulated to induce different ruminal volatile fatty acid (VFA) profiles. Eight ruminally cannulated dairy cows were divided into 2 groups based on parity, days in milk, milk production, and body weight. Cows in each group were fed either a high-starch (38%, HS) or a low-starch (2%, LS) diet in a 55:45 forage-to-concentrate ratio on a dry matter (DM) basis...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28161092/fatty-acid-and-non-alcoholic-fatty-liver-disease-meta-analyses-of-case-control-and-randomized-controlled-trials
#13
Xiao-Fei Guo, Bo Yang, Jun Tang, Duo Li
BACKGROUND AND AIMS: Blood and/or liver fatty acid contents of healthy subjects and non-alcoholic fatty liver disease (NAFLD) patients have shown inconsistent associations. In addition, the results of randomized controlled trials (RCTs) in relation to the effects of n-3 polyunsaturated fatty acid (PUFA) supplementation on alanine aminotransferase (ALT), aspartate aminotransferase (AST), liver fat, triglyceride (TAG) and fasting glucose levels are inconsistent. The present study aimed to investigate the differences of fatty acid content in the blood and/or liver tissue between healthy subjects and NAFLD patients, and to quantify the benefits of n-3 PUFA therapy in NAFLD patients...
January 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28153504/effect-of-omega-3-polyunsaturated-fatty-acids-derived-from-fish-oil-in-major-burn-patients-a-prospective-randomized-controlled-pilot-trial
#14
Serrana Tihista, Estrella Echavarría
BACKGROUND & AIMS: The burn patient is the clearest example of prolonged inflammatory response. Various nutrients, particularly omega-3 polyunsaturated fatty acids (ω-3 PUFAs), have been demonstrated as attenuating the inflammatory response, and reduce infectious complications. In absence of definitive evidence in major burns the study aimed at investigating the effect particularly on infectious complications of enteral nutrition enriched with ω-3 PUFAs. METHOD: Prospectively randomized controlled trial...
January 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28150350/nutrient-intakes-and-compliance-with-nutrient-recommendations-in-children-aged-1-4-years-in-ireland
#15
J Walton, L Kehoe, B A McNulty, A P Nugent, A Flynn
BACKGROUND: The early childhood years represent a period of rapid growth and development characterised by unique requirements for energy and individual nutrients. METHODS: The present study uses data from the National Pre-School Nutrition Survey, a nationally representative sample of Irish children (1-4 years) (n = 500), aiming to estimate energy and nutrient intakes across age and compliance with recommendations (UK and European). A 4-day weighed food-record was used to collect dietary data and statistical modelling (National Cancer Institute method) was applied to estimate usual nutrient intakes...
February 2, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28146136/consumption-of-red-meat-but-not-cooking-oils-high-in-polyunsaturated-fat-is-associated-with-higher-arachidonic-acid-status-in-singapore-chinese-adults
#16
Jowy Yi Hoong Seah, Gibson Ming Wei Gay, Jin Su, E-Shyong Tai, Jian-Min Yuan, Woon-Puay Koh, Choon Nam Ong, Rob M van Dam
High arachidonic acid (AA; 20:4 n - 6) status may have adverse effects on inflammation and risk of cardiovascular diseases. Concerns about high intake of n - 6 polyunsaturated fatty acids (PUFAs) are based on the premise that endogenous conversion from linoleic acid (LA; 18:2 n - 6) is an important source of AA, but few population-based studies have investigated dietary determinants of AA status. In this study, we examined habitual food consumption in relation to plasma concentrations of AA and other PUFAs in population-based studies...
January 31, 2017: Nutrients
https://www.readbyqxmd.com/read/28144165/osteosarcopenic-obesity-in-women-impact-prevalence-and-management-challenges
#17
REVIEW
Pegah JafariNasabian, Julia E Inglis, Owen J Kelly, Jasminka Z Ilich
Osteosarcopenic obesity syndrome (OSO) has recently been identified as a condition encompassing osteopenia/osteoporosis, sarcopenia and obesity. OSO is especially deleterious in older adults (even if they are not obese by conventional measures), due to age-related redistribution of fat and its infiltration into bone and muscle. Osteoporosis and bone fractures in elderly increase the risk of sarcopenia, which, through decreased mobility, increases the risk of more falls and fractures, creating a vicious cycle...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28139281/non-alcoholic-fatty-liver-disease-and-its-treatment-with-n-3-polyunsaturated-fatty-acids
#18
REVIEW
Gabriela S de Castro, Philip C Calder
BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) is a common liver disease in Western countries. Metabolic disorders which are increasing in prevalence, such as dyslipidaemias, obesity and type 2 diabetes, are closely related to NAFLD. Insulin resistance is a prominent risk factor for NAFLD. Marine omega-3 (n-3) polyunsaturated fatty acids (PUFAs) are able to decrease plasma triacylglycerol and diets rich in marine n-3 PUFAs are associated with a lower cardiovascular risk...
January 19, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28137585/saturation-of-serca-s-lipid-annulus-may-protect-against-its-thermal-inactivation
#19
Val Andrew Fajardo, Natalie Trojanowski, Laura M Castelli, Paula M Miotto, Foyinsola Amoye, Wendy E Ward, A Russell Tupling, Paul J LeBlanc
The sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA) pumps are integral membrane proteins that catalyze the active transport of Ca(2+) into the sarcoplasmic reticulum, thereby eliciting muscle relaxation. SERCA pumps are highly susceptible to oxidative damage, and cytoprotection of SERCA dampens thermal inactivation and is a viable therapeutic strategy in combating diseases where SERCA activity is impaired, such as muscular dystrophy. Here, we sought to determine whether increasing the percent of saturated fatty acids (SFA) within SERCA's lipid annulus through diet could protect SERCA pumps from thermal inactivation...
January 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28133815/comparison-of-nutritional-and-antinutritional-traits-among-different-species-lupinus-albus-l-lupinus-luteus-l-lupinus-angustifolius-l-and-varieties-of-lupin-seeds
#20
N Musco, M I Cutrignelli, S Calabrò, R Tudisco, F Infascelli, R Grazioli, V Lo Presti, F Gresta, B Chiofalo
In order to promote the use of lupin in pig nutrition, in this research the nutritional characteristics (i.e. dietary fibre, alkaloid and fatty acid profile) and the in vitro gas production of 12 lupin varieties grown in the Mediterranean basin and belonging to three lupin species (Lupinus albus, Lupinus angustifolius and Lupinus luteus) were assessed. Four varieties of L. albus (Asfer, Lublanc, Lutteur and Multitalia) were grown in South Campania. Three varieties of L. luteus (Dukat, Mister and Taper), three of L...
January 30, 2017: Journal of Animal Physiology and Animal Nutrition
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