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https://www.readbyqxmd.com/read/28193018/thin-layer-chromatography-desorption-atmospheric-pressure-photoionization-orbitrap-mass-spectrometry-of-lipids
#1
Jan Rejšek, Vladimír Vrkoslav, Anu Vaikkinen, Markus Haapala, Tiina J Kauppila, Risto Kostiainen, Josef Cvačka
Desorption atmospheric pressure photoionization (DAPPI) allows surface analysis in the open atmosphere and is thus an appropriate method for the direct coupling of thin-layer chromatography (TLC) and mass spectrometry (MS). Here, the capability of DAPPI-MS for ionizing and detecting lipids, namely, cholesterol, triacylglycerols, 1,2-diol diesters, wax esters, cholesteryl esters, and hydrocarbons, from TLC and high-performance thin-layer chromatography (HPTLC) plates in MS and MS(2) modes was tested. Limits of detection for lipid standards separated using normal-phase (NP)-TLC and NP-HPTLC were established...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28192173/evaluation-of-the-sub-chronic-toxicity-of-a-standardized-flavonoid-extract-of-safflower-in-rats
#2
Zhilin Zhang, Runzhe Liu, Xiaoping Pu, Yi Sun, Xin Zhao
Carthamus tinctorius L., or safflower, is an annual herbaceous crop belonging to the family Asteraceae, which is cultivated throughout China and used as a traditional Chinese medicine. Our previous study revealed anti-Parkinson's disease effects of an isolated standardized safflower flavonoid extract (SAFE). The purpose of this study is to evaluate the potential sub-chronic toxicity of SAFE. Male and female Sprague Dawley rats received three doses of SAFE (100, 300, and 500 mg/kg) q.d. by gavage for four weeks...
February 10, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28188639/effect-of-unconventional-oilseeds-safflower-poppy-hemp-camelina-on-in-vitro-ruminal-methane-production-and-fermentation
#3
Shaopu Wang, Michael Kreuzer, Ueli Braun, Angela Schwarm
BACKGROUND: Dietary supplementation with oilseeds can reduce methane emission in ruminants, but only a few common seeds have been tested so far. This study tested safflower (Carthamus tinctorius), poppy (Papaver somniferum), hemp (Cannabis sativa), and camelina (Camelina sativa) seeds in vitro using coconut (Cocos nucifera) oil and linseed (Linum usitatissimum) as positive controls. RESULTS: All the tested oilseeds suppressed methane yield (ml g(-1) dry matter, up to 21%) compared to the non-supplemented control when provided at 70 g oil kg(-1) dry matter, and they were as effective as coconut oil...
February 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28166982/dietary-polyunsaturated-fatty-acid-supplementation-of-young-post-pubertal-dairy-bulls-alters-the-fatty-acid-composition-of-seminal-plasma-and-spermatozoa-but-has-no-effect-on-semen-volume-or-sperm-quality
#4
C J Byrne, S Fair, A M English, S A Holden, J R Dick, P Lonergan, D A Kenny
The aim of this study was to examine the effects of dietary supplementation with rumen protected n-6 or n-3 polyunsaturated fatty acids (PUFA) on the quantity and quality of semen from young post-pubertal dairy bulls. Pubertal Holstein-Friesian (n = 43) and Jersey (n = 7) bulls with a mean ± s.e.m. age and bodyweight of 420.1 ± 5.86 days and 382 ± 8.94 kg, respectively, were blocked on breed, weight, age and semen quality (based on the outcomes of two pre-trial ejaculates) and randomly assigned to one of three treatments: (i) a non-supplemented control (CTL, n = 15), (ii) rumen-protected safflower (SO, n = 15), (iii) rumen-protected n-3 PUFA-enriched fish oil (FO, n = 20)...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28139227/preparation-of-hydrophilic-interaction-ion-exchange-mixed-mode-chromatographic-stationary-phase-with-adjustable-selectivity-by-controlling-different-ratios-of-the-co-monomers
#5
Chunmiao Bo, Xiaomeng Wang, Chaozhan Wang, Yinmao Wei
Development of mixed-mode chromatography (MMC) stationary phase with adjustable selectivity is beneficial to meet the needs of complex samples. In this work, surface-initiated atom transfer radical polymerization (SI-ATRP) using the mixture of two functional monomers was proposed as a new preparation strategy for MMC stationary phase with adjustable selectivity. The mixture of sodium 4-styrenesulfonate (NASS) and dimethylaminoethyl methacrylate (DMAEMA) underwent SI-ATRP to bond poly(NASS-co-DMAEMA) on the surface of silica to prepare hydrophilic interaction/ion-exchange mixed-mode stationary phase...
January 24, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28125600/conjugated-linoleic-acid-administration-induces-amnesia-in-male-sprague-dawley-rats-and-exacerbates-recovery-from-functional-deficits-induced-by-a-controlled-cortical-impact-injury
#6
Rastafa I Geddes, Kentaro Hayashi, Quinn Bongers, Marlyse Wehber, Icelle M Anderson, Alex D Jansen, Chase Nier, Emily Fares, Gabrielle Farquhar, Amita Kapoor, Toni E Ziegler, Sivan VadakkadathMeethal, Ian M Bird, Craig S Atwood
Long-chain polyunsaturated fatty acids like conjugated linoleic acids (CLA) are required for normal neural development and cognitive function and have been ascribed various beneficial functions. Recently, oral CLA also has been shown to increase testosterone (T) biosynthesis, which is known to diminish traumatic brain injury (TBI)-induced neuropathology and reduce deficits induced by stroke in adult rats. To test the impact of CLA on cognitive recovery following a TBI, 5-6 month old male Sprague Dawley rats received a focal injury (craniectomy + controlled cortical impact (CCI; n = 17)) or Sham injury (craniectomy alone; n = 12) and were injected with 25 mg/kg body weight of Clarinol® G-80 (80% CLA in safflower oil; n = 16) or saline (n = 13) every 48 h for 4 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28107970/a-new-analytical-method-for-quantification-of-olive-and-palm-oil-in-blends-with-other-vegetable-edible-oils-based-on-the-chromatographic-fingerprints-from-the-methyl-transesterified-fraction
#7
Ana M Jiménez-Carvelo, Antonio González-Casado, Luis Cuadros-Rodríguez
A new analytical method for the quantification of olive oil and palm oil in blends with other vegetable edible oils (canola, safflower, corn, peanut, seeds, grapeseed, linseed, sesame and soybean) using normal phase liquid chromatography, and applying chemometric tools was developed. The procedure for obtaining of chromatographic fingerprint from the methyl-transesterified fraction from each blend is described. The multivariate quantification methods used were Partial Least Square-Regression (PLS-R) and Support Vector Regression (SVR)...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28096971/carthamus-tinctorius-l-ameliorates-brain-injury-followed-by-cerebral-ischemia-reperfusion-in-rats-by-antioxidative-and-anti-inflammatory-mechanisms
#8
Pin-Kuei Fu, Tai-Long Pan, Chi-Yu Yang, Kee-Ching Jeng, Nou-Ying Tang, Ching-Liang Hsieh
OBJECTIVES: Carthamus tinctorius L. (CT) or safflower is widely used in traditional Chinese medicine. This study investigated the effects of CT extract (CTE) on ischemia-reperfusion (I/R) brain injury and elucidated the underlying mechanism. MATERIALS AND METHODS: The I/R model was conducted by occlusion of both common carotid arteries and right middle cerebral artery for 90 min followed by 24 hr reperfusion in Sprague-Dawley rats. CTE (0.2-0.6 g/kg) was administered intraperitoneally before and during ischemia, and during reperfusion period...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28074319/trans-fatty-acid-stimulated-mammary-gland-growth-in-ovariectomized-mice-is-fatty-acid-type-and-isomer-specific
#9
Grace E Berryhill, Susan G Miszewski, Josephine F Trott, Jana Kraft, Adam L Lock, Russell C Hovey
We previously reported that the trans-18:2 fatty acid trans-10, cis-12 conjugated linoleic acid (t10,c12-CLA) stimulates mammary gland development independent of estrogen and its receptor. Given the negative consequences of dietary trans-fatty acids on various aspects of human health, we sought to establish whether other trans-fatty acids could similarly induce ovary-independent mammary gland growth in mice. Prepubertal BALB/cJ mice were ovariectomized at 21 days of age then were fed diets enriched with cis-9, trans-11 CLA (c9,t11-CLA), or mixtures of trans-18:1 fatty acids supplied by partially hydrogenated sunflower, safflower, or linseed oil...
January 10, 2017: Lipids
https://www.readbyqxmd.com/read/28073976/effects-of-carriers-emulsifiers-and-biopesticides-for-direct-silk-treatments-on-caterpillar-feeding-damage-and-ear-development-in-sweet-corn
#10
P J Westgate, B B Schultz, R V Hazzard
In the northeastern United States, control of Lepidopteran pests of sweet corn, particularly corn earworm [Helicoverpa zea (Boddie)], is difficult using organic methods. The direct application of corn oil and Bacillus thuringiensis (Bt) to corn silk has been shown to reduce ear damage from corn earworm in past studies; these studies sought to optimize this method by evaluating additional carrier and biopesticide mixtures that comply with the United States Federal Insecticide, Fungicide, and Rodenticide Act and National Organic Standards...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28040655/hierarchical-identification-of-bioactive-components-in-a-medicinal-herb-by-preparative-high-performance-liquid-chromatography-and-selective-knock-out-strategy
#11
Cheng Qu, Lin-Yan Wang, Hang Lin, Er-Xin Shang, Yu-Ping Tang, Shi-Jun Yue, Yi Jin, Wei-Wei Tao, Shao-Ping Li, Yong-Qing Hua, Pei Liu, Shu-Lan Su, Huiping Zhou, Da-Wei Qian, Jin-Ao Duan
A novel and generally applicable approach was established to hierarchically identify the bioactive components of a medicinal herb by preparative high-performance liquid chromatography (prep-HPLC) and a selective knock-out strategy. In this study, the targeted components of an herbal medicine were separated and knocked out using prep-HPLC. Subsequently, the contributions of the different target components to the overall effect of the medicinal herb were comparatively evaluated and differentiated by a heat map and a 3D score plot...
December 23, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28040580/physiological-effects-of-%C3%AE-linolenic-acid-and-sesamin-on-hepatic-fatty-acid-synthesis-and-oxidation
#12
Takashi Ide, Haruka Iwase, Saaya Amano, Saki Sunahara, Ayuka Tachihara, Minako Yagi, Tsuyoshi Watanabe
Interrelated effects of γ-linolenic acid (GLA) and sesamin, a sesame lignan, on hepatic fatty acid synthesis and oxidation were examined. Rats were fed experimental diets supplemented with 0 or 2 g/kg sesamin (1:1 mixture of sesamin and episesamin) and containing 100 g/kg of palm oil (saturated fat), safflower oil rich in linoleic acid, or oil of evening primrose origin containing 43% GLA (GLA oil) for 18 days. In rats fed sesamin-free diets, GLA oil, compared with other oils, increased the activity and mRNA levels of various enzymes involved in fatty acid oxidation, except for some instances...
December 14, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28012235/a-safflower-oil-based-high-fat-high-sucrose-diet-modulates-the-gut-microbiota-and-liver-phospholipid-profiles-associated-with-early-glucose-intolerance-in-the-absence-of-tissue-inflammation
#13
Niels Banhos Danneskiold-Samsøe, Daniel Andersen, Ilinca Daria Radulescu, Ann Normann-Hansen, Asker Brejnrod, Marie Kragh, Tobias Madsen, Christian Nielsen, Knud Josefsen, Xavier Fretté, Even Fjaere, Lise Madsen, Lars I Hellgren, Susanne Brix, Karsten Kristiansen
SCOPE: n-6 PUFA-rich diets are generally considered obesogenic in rodents. Here we examined how long-term intake of a high fat/high sucrose (HF/HS) diet based on safflower oil affected metabolism, inflammation and gut microbiota composition. METHODS AND RESULTS: We fed male C57BL/6J mice a HF/HS diet based on safflower oil - rich in n-6 PUFAs - or low-fat/low-sucrose (LF/LS) diet for 40 weeks. Compared to the LF/LS diet, intake of the safflower-based HF/HS diet only led to moderate weight gain, while glucose intolerance developed at week 5 prior to signs of inflammation, but concurrent with increased levels of linoleic acid and arachidonic acid in hepatic phospholipids...
December 24, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27979162/one-input-class-and-two-input-class-classifications-for-differentiating-olive-oil-from-other-edible-vegetable-oils-by-use-of-the-normal-phase-liquid-chromatography-fingerprint-of-the-methyl-transesterified-fraction
#14
Ana M Jiménez-Carvelo, Estefanía Pérez-Castaño, Antonio González-Casado, Luis Cuadros-Rodríguez
A new method for differentiation of olive oil (independently of the quality category) from other vegetable oils (canola, safflower, corn, peanut, seeds, grapeseed, palm, linseed, sesame and soybean) has been developed. The analytical procedure for chromatographic fingerprinting of the methyl-transesterified fraction of each vegetable oil, using normal-phase liquid chromatography, is described and the chemometric strategies applied and discussed. Some chemometric methods, such as k-nearest neighbours (kNN), partial least squared-discriminant analysis (PLS-DA), support vector machine classification analysis (SVM-C), and soft independent modelling of class analogies (SIMCA), were applied to build classification models...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979055/barcode-dna-length-polymorphisms-vs-fatty-acid-profiling-for-adulteration-detection-in-olive-oil
#15
Ali Tevfik Uncu, Ayse Ozgur Uncu, Anne Frary, Sami Doganlar
The aim of this study was to compare the performance of a DNA-barcode assay with fatty acid profile analysis to authenticate the botanical origin of olive oil. To achieve this aim, we performed a PCR-capillary electrophoresis (PCR-CE) approach on olive oil: seed oil blends using the plastid trnL (UAA) intron barcode. In parallel to genomic analysis, we subjected the samples to gas chromatography analysis of fatty acid composition. While the PCR-CE assay proved equally efficient as gas chromatography analysis in detecting adulteration with soybean, palm, rapeseed, sunflower, sesame, cottonseed and peanut oils, it was superior to the widely utilized analytical chemistry approach in revealing the adulterant species and detecting small quantities of corn and safflower oils in olive oil...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27975647/comparison-of-oil-compositions-and-antioxidant-activities-in-safflower-germplasm-collected-from-east-asia
#16
J Sung, H Ko, O Hur, J Lee, B P Luitel, S Kim, J Rhee, H Baek, M Lee, K Ryu
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27941179/flaxseed-oil-supplementation-manipulates-correlations-between-serum-individual-mol-free-fatty-acid-levels-and-insulin-resistance-in-type-2-diabetics-insulin-resistance-and-percent-remaining-pancreatic-%C3%AE-cell-function-are-unaffected
#17
D E Barre, K A Mizier-Barre, O Griscti, K Hafez
OBJECTIVES: Elevated total serum free fatty acids (FFAs) concentrations have been suggested, controversially, to enhance insulin resistance and decrease percent remaining β-cell function. However, concentrations of individual serum FFAs have never been published in terms of their relationship (correlation) to homeostatic model assessment-insulin resistance (HOMA-IR) and percent remaining β-cell function (HOMA-%β) in the type 2 diabetics (T2Ds). Alpha-linolenic acid consumption has a negative correlation with the insulin resistance, which in turn is negatively correlated with the remaining β-cell function...
October 1, 2016: Endocrine Regulations
https://www.readbyqxmd.com/read/27926458/changes-in-relative-and-absolute-concentrations-of-plasma-phospholipid-fatty-acids-observed-in-a-randomized-trial-of-omega-3-fatty-acids-supplementation-in-uganda
#18
Xiaoling Song, Pho Diep, Jeannette M Schenk, Corey Casper, Jackson Orem, Zeina Makhoul, Johanna W Lampe, Marian L Neuhouser
Expressing circulating phospholipid fatty acids (PLFAs) in relative concentrations has some limitations: the total of all fatty acids are summed to 100%; therefore, the values of individual fatty acid are not independent. In this study we examined if both relative and absolute metrics could effectively measure changes in circulating PLFA concentrations in an intervention trial. 66 HIV and HHV8 infected patients in Uganda were randomized to take 3g/d of either long-chain omega-3 fatty acids (1856mg EPA and 1232mg DHA) or high-oleic safflower oil in a 12-week double-blind trial...
November 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
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
#19
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...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27863203/safflower-catharmus-tinctorius-l-oil-supplementation-in-overnourished-rats-during-early-neonatal-development-effects-on-heart-and-liver-function-in-the-adult
#20
COMPARATIVE STUDY
Laís Ribeiro Costa, Patrícia Cavalcanti Macêdo, Janatar Stella Vasconcelos de Melo, Cristiane Moura Freitas, Aiany Simoes Alves, Humberto de Moura Barbosa, Eduardo Lira, Mariana Pinheiro Fernandes, Manuella Batista-de-Oliveira-Hornsby, Claudia Lagranha
Carthamus tinctorius L. (common name: safflower) is an herb whose extracted oil (safflower oil) has been employed in both alternative and conventional medicine in the treatment of disease. Overnutrition during early postnatal life can increase the lifetime risk of obesity and metabolic syndrome. Here we investigate the effect of safflower oil supplementation given during a critical early developmental stage on the eventual occurrence of metabolic disease in overnourished rats. Groups of overnourished or adequately nourished rats were randomly assigned into 2 additional groups for supplementation with either safflower oil (SF) or vehicle for 7 to 30 days...
December 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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