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Journal of Lipids

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https://www.readbyqxmd.com/read/30186635/free-radical-scavenging-capacity-carotenoid-content-and-nmr-characterization-of-blighia-sapida-aril-oil
#1
Andrea Goldson Barnaby, Jesse Clarke, Dane Warren, Kailesha Duffus
Blighia sapida aril oil is rich in monounsaturated fatty acids but is however currently not utilized industrially. The oil was characterized utilizing nuclear magnetic resonance (NMR) and Fourier Transform Infrared Spectroscopy (FTIR). A spectrophotometric assay was conducted to determine the free radical scavenging properties and carotenoid content of the oil. Chemical shifts resonating between δ 5.30 and 5.32 in the 1 H NMR are indicative of olefinic protons present in ackee aril oil which are due to the presence of oleic acid...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/30174957/intracellular-and-plasma-membrane-events-in-cholesterol-transport-and-homeostasis
#2
REVIEW
Dmitry Y Litvinov, Eugeny V Savushkin, Alexander D Dergunov
Cholesterol transport between intracellular compartments proceeds by both energy- and non-energy-dependent processes. Energy-dependent vesicular traffic partly contributes to cholesterol flux between endoplasmic reticulum, plasma membrane, and endocytic vesicles. Membrane contact sites and lipid transfer proteins are involved in nonvesicular lipid traffic. Only "active" cholesterol molecules outside of cholesterol-rich regions and partially exposed in water phase are able to fast transfer. The dissociation of partially exposed cholesterol molecules in water determines the rate of passive aqueous diffusion of cholesterol out of plasma membrane...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/30151284/a-fast-and-simple-qualitative-method-for-screening-oleaginous-yeasts-on-agar
#3
Xochitl Niehus, Leticia Casas-Godoy, Marcos Vargas-Sánchez, Georgina Sandoval
Finding new oleaginous yeasts is of great interest due to their many important applications. Currently available screening procedures are time-consuming, and most of these require liquid cultures. In this work, a new, fast, economical, and simple qualitative method for screening oleaginous yeasts was developed. The fluorescent dye, Rhodamine B, was selected because its fluorescence is directly correlated to lipid content, and no additional steps or special equipment are needed. This method only requires growing the yeasts on dyed agar plates...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/30105099/the-effect-of-proprotein-convertase-subtilisin-kexin-type-9-inhibitors-on-nonfasting-remnant-cholesterol-in-a-real-world-population
#4
Anthony P Morise, Jennifer Tennant, Sari D Holmes, Danyel H Tacker
Background: Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have demonstrated significant effects on low-density lipoprotein (LDL) cholesterol and nonhigh density lipoprotein (HDL) cholesterol. To date, there have been limited reports on the effect of PCSK9 inhibitors on remnant cholesterol. Objectives: Assess the effect of PCSK9 inhibitors on nonfasting remnant cholesterol in a real world population. Identify whether pretreatment triglyceride levels are associated with PCSK9 inhibition success as indicated by changes in remnant cholesterol levels...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29973994/effect-of-helicobacter-pylori-infection-on-serum-lipid-profile
#5
Mohamadreza Haeri, Mahmoud Parham, Neda Habibi, Jamshid Vafaeimanesh
Background: Some studies suggest a significant relationship between Helicobacter pylori infection and atherogenesis; but the mechanism of the relationship is almost unknown. The current study aimed at evaluating the relationship between H. pylori infection and serum lipid profile. Patients and Methods: The current study was conducted on 2573 patients, from 2008 to 2015. The serum anti- Helicobacter pylori antibody titer and serum lipid profile were assessed in the study population; data were statistically analyzed by SPSS version 16...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29862080/utilization-of-solid-waste-as-a-substrate-for-production-of-oil-from-oleaginous-microorganisms
#6
Fortunate Laker, Arnold Agaba, Andrew Akatukunda, Robert Gazet, Joshua Barasa, Sarah Nanyonga, Deborah Wendiro, Alex Paul Wacoo
The overwhelming demand of oil and fats to meet the ever increasing needs for biofuel, cosmetics production, and other industrial purposes has enhanced a number of innovations in this industry. One such innovation is the use of microorganisms as alternative sources of oil and fats. Organic solid waste that is causing a big challenge of disposal worldwide is biodegradable and can be utilized as substrate for alternative oil production. The study evaluated the potential of isolated yeast-like colonies to grow and accumulate oil by using organic solid waste as substrate...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29854466/effect-of-locally-manufactured-niger-seed-oil-on-lipid-profile-compared-to-imported-palm-and-sunflower-oils-on-rat-models
#7
Zewdie Mekonnen, Abrha Gebreselema, Yohannes Abere
Background: Different types of dietary lipids have been shown to affect lipid metabolism and lipid profile differently. Objective: This study aims to assess the effect of local niger seed oil on serum lipid profile compared to palm oil and sunflower oil in rats. Methods: The effect of the 15% plant oils on serum lipid profile, body weight gain percentage, and feed efficiency ratio was assessed after 8 weeks of experimental period. Results and Conclusion: The 15% niger seed oil showed decrease and increase in the level of lipid profile as compared to rats fed with 15% palm oil and sunflower oil (except Triacylglycerol), respectively...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29850255/safety-and-efficacy-of-extremely-low-ldl-cholesterol-levels-and-its-prospects-in-hyperlipidemia-management
#8
REVIEW
Dhrubajyoti Bandyopadhyay, Arshna Qureshi, Sudeshna Ghosh, Kumar Ashish, Lyndsey R Heise, Adrija Hajra, Raktim K Ghosh
The risk of cardiovascular disease has been reported to have a linear relationship with LDL levels. Additionally, the currently recommended LDL target goal of 70 mg/dl does not diminish the CV risk entirely leaving behind some residual risk. Previous attempts to maximally lower the LDL levels with statin monotherapy have met dejection due to the increased side effects associated with the treatment. Nevertheless, with the new advancements in clinical medicine, it has now become possible to bring down the LDL levels to as low as 15 mg/dl using PCSK9 monoclonal antibodies alone or in combination with statins...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29805810/effect-of-supplementation-with-n-3-fatty-acids-extracted-from-microalgae-on-inflammation-biomarkers-from-two-different-strains-of-mice
#9
L E Gutiérrez-Pliego, B E Martínez-Carrillo, A A Reséndiz-Albor, I M Arciniega-Martínez, J A Escoto-Herrera, C A Rosales-Gómez, R Valdés-Ramos
Background: Diabetes mellitus is considered a chronic noncommunicable disease in which inflammation plays a main role in the progression of the disease and it is known that n -3 fatty acids have anti-inflammatory properties. One of the most recent approaches is the study of the fatty acids of microalgae as a substitute for fish oil and a source rich in fatty acids EPA and DHA. Objective: To analyze the effect of supplementation with n -3 fatty acids extracted from microalgae on the inflammatory markers from two different strains of mice...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29785308/the-correlation-of-dyslipidemia-with-the-extent-of-coronary-artery-disease-in-the-multiethnic-study-of-atherosclerosis
#10
Moshrik Abd Alamir, Michael Goyfman, Adib Chaus, Firas Dabbous, Leslie Tamura, Veit Sandfort, Alan Brown, Mathew Budoff
Background: The extent of coronary artery calcium (CAC) improves cardiovascular disease (CVD) risk prediction. The association between common dyslipidemias (combined hyperlipidemia, simple hypercholesterolemia, metabolic Syndrome (MetS), isolated low high-density lipoprotein cholesterol, and isolated hypertriglyceridemia) compared with normolipidemia and the risk of multivessel CAC is underinvestigated. Objectives: To determine whether there is an association between common dyslipidemias compared with normolipidemia, and the extent of coronary artery involvement among MESA participants who were free of clinical cardiovascular disease at baseline...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29770231/cardiovascular-outcomes-of-pcsk9-inhibitors-with-special-emphasis-on-its-effect-beyond-ldl-cholesterol-lowering
#11
REVIEW
Dhrubajyoti Bandyopadhyay, Kumar Ashish, Adrija Hajra, Arshna Qureshi, Raktim K Ghosh
PCSK9 inhibitors, monoclonal antibodies, are novel antihypercholesterolemic drugs. FDA first approved them in July 2015. PCSK9 protein (692-amino acids) was discovered in 2003. It plays a major role in LDL receptor degradation and is a prominent modulator in low-density lipoprotein cholesterol (LDL-C) metabolism. PCSK9 inhibitors are monoclonal antibodies that target PCSK9 protein in liver and inhibiting this protein leads to drastically lowering harmful LDL-C level in the bloodstream. Despite widespread use of the statin, not all the high-risk patients were able to achieve targeted level of LDL-C...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29682353/identification-and-quantification-of-fatty-acids-in-t-viridissima-c-biguttulus-and-c-brunneus-by-gc-ms
#12
Alexander M Wathne, Hanne Devle, Carl Fredrik Naess-Andresen, Dag Ekeberg
Fatty acid (FA) profiles of the species Tettigonia viridissima , Chorthippus biguttulus , and Chorthippus brunneus were determined and quantitated. Extracted lipids were derivatized into FA methyl esters (FAMEs) prior to analysis by GC-MS. A total of 37 different FAs were identified in T. viridissima , yielding a total FA content of 10.4 g/100 g of dry matter. The contents of saturated FAs, monounsaturated FAs, and polyunsaturated FAs were 31.1, 35.9, and 33.0%, respectively. Lipids from T. viridissima were also fractioned into neutral lipids, free fatty acids, and polar lipids by offline solid phase extraction...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29666707/realm-of-thermoalkaline-lipases-in-bioprocess-commodities
#13
REVIEW
Ahmad Firdaus B Lajis
For decades, microbial lipases are notably used as biocatalysts and efficiently catalyze various processes in many important industries. Biocatalysts are less corrosive to industrial equipment and due to their substrate specificity and regioselectivity they produced less harmful waste which promotes environmental sustainability. At present, thermostable and alkaline tolerant lipases have gained enormous interest as biocatalyst due to their stability and robustness under high temperature and alkaline environment operation...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29610686/comparison-of-oil-content-and-fatty-acids-profile-of-western-schley-wichita-and-native-pecan-nuts-cultured-in-chihuahua-mexico
#14
L R Rivera-Rangel, K I Aguilera-Campos, A García-Triana, J G Ayala-Soto, D Chavez-Flores, L Hernández-Ochoa
Two different extraction processes, Soxhlet and ultrasound, were used to obtain the oil extracts of Western Schley, Wichita, and Native pecan nuts cultured in Chihuahua, Mexico. The aspects evaluated in this study were the extraction yield of the processes and fatty acids' profile of the resulting extracts. Gas chromatography coupled with mass spectrometry (GC-MS) was used to identify and determine the composition percentage of fatty acids present in pecan nuts oils extracted. The results obtained show that higher oil extraction yields were obtained by Soxhlet method with hexane (69...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29610685/ceramide-and-ischemia-reperfusion-injury
#15
REVIEW
Xingxuan He, Edward H Schuchman
Ceramide, a bioactive membrane sphingolipid, functions as an important second messenger in apoptosis and cell signaling. In response to stresses, it may be generated by de novo synthesis, sphingomyelin hydrolysis, and/or recycling of complex sphingolipids. It is cleared from cells through the activity of ceramidases, phosphorylation to ceramide-1-phosphate, or resynthesis into more complex sphingolipids. Ischemia/reperfusion (IR) injury occurs when oxygen/nutrition is rapidly reintroduced into ischemic tissue, resulting in cell death and tissue damage, and is a major concern in diverse clinical settings, including organ resection and transplantation...
2018: Journal of Lipids
https://www.readbyqxmd.com/read/29318047/correlation-between-cholesterol-triglycerides-calculated-and-measured-lipoproteins-whether-calculated-small-density-lipoprotein-fraction-predicts-cardiovascular-risks
#16
Sikandar Hayat Khan, Nadeem Fazal, Athar Abbas Gilani Shah, Syed Mohsin Manzoor, Naveed Asif, Aamir Ijaz, Najmusaqib Khan Niazi, Muhammad Yasir
Background: Recent literature in lipidology has identified LDL-fractions to be more atherogenic. In this regard, small density LDL-cholesterol (sdLDLc) has been considered to possess more atherogenicity than other LDL-fractions like large buoyant LDL-cholesterol (lbLDLc). Recently, Srisawasdi et al. have developed a method for calculating sdLDLc and lbLDLc based upon a regression equation. Using that in developing world may provide us with a valuable tool for ASCVD risk prediction. Objective: (1) To correlate directly measured and calculated lipid indices with insulin resistance, UACR, glycated hemoglobin, anthropometric indices, and blood pressure...
2017: Journal of Lipids
https://www.readbyqxmd.com/read/29318046/dietary-oxidized-linoleic-acid-modulates-plasma-lipids-beyond-triglycerides-metabolism
#17
Mahdi Garelnabi, Gregory Ainsworth, Halleh Mahini, Naseeha Jamil, Chinedu Ochin
Introduction: Triglyceride (TG) is an independent risk factor for coronary heart disease. Previous work has shown that short-term supplementations of mouse chow with oxidized linoleic acid (OxLA) significantly reduce the level of plasma triglycerides. Study Objective: This study aims to determine the effects of longer-term supplementation of mouse chow with various concentrations of oxidized linoleic acid (OxLA) on plasma triglycerides. Study Design: The study consisted of forty C57BL/6 wildtype mice divided into four groups ( n = 10)...
2017: Journal of Lipids
https://www.readbyqxmd.com/read/29259829/antibacterial-activity-of-free-fatty-acids-from-hydrolyzed-virgin-coconut-oil-using-lipase-from-candida-rugosa
#18
Van Thi Ai Nguyen, Truong Dang Le, Hoa Ngoc Phan, Lam Bich Tran
Free fatty acids (FFAs) were obtained from hydrolyzed virgin coconut oil (VCO) by Candida rugosa lipase (CRL). Four factors' influence on hydrolysis degree (HD) was examined. The best hydrolysis conditions in order to get the highest HD value were determined at VCO to buffer ratio 1 : 5 (w/w), CRL concentration 1.5% (w/w oil), pH 7, and temperature 40°C. After 16 hours' reaction, the HD value achieved 79.64%. FFAs and residual hydrolyzed virgin coconut oil (HVCO) were isolated from the hydrolysis products...
2017: Journal of Lipids
https://www.readbyqxmd.com/read/28951788/industrial-trans-fatty-acid-and-serum-cholesterol-the-allowable-dietary-level
#19
REVIEW
Hiroyuki Takeuchi, Michihiro Sugano
Trans fatty acid (TFA) from partially hydrogenated oil is regarded as the worst dietary fatty acid per gram due to its role in coronary heart disease. TFA consumption is decreasing worldwide, but some but not all observational studies indicate that TFA intake has little relevance to serum cholesterol levels in populations with low TFA intake (<1% E [percentage of total energy intake], <approximately 2 g/day). Few intervention trials examined the effect of TFAs on blood cholesterol at relatively low levels (<2% E); no definite evidence is available on the tolerable upper level of the intake...
2017: Journal of Lipids
https://www.readbyqxmd.com/read/28951787/do-omega-3-6-fatty-acids-have-a-therapeutic-role-in-children-and-young-people-with-adhd
#20
REVIEW
E Derbyshire
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is a debilitating behavioural disorder affecting daily ability to function, learn, and interact with peers. This publication assesses the role of omega-3/6 fatty acids in the treatment and management of ADHD. METHODS: A systematic review of 16 randomised controlled trials was undertaken. Trials included a total of 1,514 children and young people with ADHD who were allocated to take an omega-3/6 intervention, or a placebo...
2017: Journal of Lipids
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