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https://www.readbyqxmd.com/read/29754485/supersaturable-self-emulsifying-drug-delivery-system-of-krill-oil-with-improved-oral-absorption-and-hypotriglyceridemic-function
#1
Yoshiki Seto, Chikara Morizane, Kodai Ueno, Hideyuki Sato, Satomi Onoue
This study aimed to develop a supersaturable self-emulsifying drug delivery system (S-SEDDS) of krill oil (KO), a rich source of docosahexaenoic acid and eicosapentaenoic acid (EPA), to improve its hypotriglyceridemic function. S-SEDDS of KO (KO/S-SEDDS) was prepared by the addition of lysolecithin, glycerin, and hydroxypropyl methylcellulose (HPMC). SEDDS of KO (KO/SEDDS) and KO with HPMC (KO/HPMC) were also prepared for comparison purposes. The physicochemical and pharmacokinetic properties of KO samples were characterized, and the hypotriglyceridemic function of KO/S-SEDDS was evaluated...
May 14, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29744810/correction-to-intranasal-cotinine-plus-krill-oil-facilitates-fear-extinction-decreases-depressive-like-behavior-and-increases-hippocampal-calcineurin-a-levels-in-mice
#2
Nathalie Alvarez-Ricartes, Patricia Oliveros-Matus, Cristhian Mendoza, Nelson Perez-Urrutia, Florencia Echeverria, Alexandre Iarkov, George E Barreto, Valentina Echeverria
The original version of this article unfortunately contained mistake in its Funding inforation.
April 26, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29599972/effects-of-fish-and-krill-oil-on-gene-expression-in-peripheral-blood-mononuclear-cells-and-circulating-markers-of-inflammation-a-randomised-controlled-trial
#3
Amanda Rundblad, Kirsten B Holven, Inge Bruheim, Mari C Myhrstad, Stine M Ulven
Marine n -3 (omega-3) fatty acids alter gene expression by regulating the activity of transcription factors. Krill oil is a source of marine n -3 fatty acids that has been shown to modulate gene expression in animal studies; however, the effect in humans is not known. Hence, we aimed to compare the effect of intake of krill oil, lean and fatty fish with a similar content of n -3 fatty acids, and high-oleic sunflower oil (HOSO) with added astaxanthin on the expression of genes involved in glucose and lipid metabolism and inflammation in peripheral blood mononuclear cells (PBMC) as well as circulating inflammatory markers...
2018: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29549496/exploring-the-association-between-whole-blood-omega-3-index-dha-epa-dha-aa-and-n-6-dpa-and-depression-and-self-esteem-in-adolescents-of-lower-general-secondary-education
#4
I S M van der Wurff, C von Schacky, T Bergeland, R Leontjevas, M P Zeegers, P A Kirschner, R H M de Groot
PURPOSE: Depression is common in adolescents and long-chain polyunsaturated fatty acids (LCPUFA) are suggested to be associated with depression. However, research in adolescents is limited. Furthermore, self-esteem has never been studied in relation to LCPUFA. The objective here was to determine associations of depression and self-esteem with eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), Omega-3 Index (O3I), n-6 docosapentaenoic acid (n-6 DPA, also called Osbond acid, ObA), n-3 docosapentaenoic acid (DPA), and arachidonic acid (AA) concentrations in blood of adolescents attending lower general secondary education (LGSE)...
March 16, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29548449/examination-of-marine-and-vegetable-oil-oxidation-data-from-a-multi-year-third-party-database
#5
Anna A De Boer, Adam Ismail, Keri Marshall, Gerard Bannenberg, Kevin L Yan, William J Rowe
Fish oil (FO) products constitute good sources of omega-3 fats. Oxidation data from a large third-party database of 1900 + globally-sourced FO samples were assessed. In FO products, for peroxide value (PV), 13.9% exceeded 5 mEq O2 /kg (2.2% >10); for acid value (AcV) 2.1% exceeded 3 mg KOH/g, while for p-anisidine value (pAV) in unflavoured oils, 6.1% exceeded 20, (3.8% >30), and 8.8% exceeded TOTOX limits (26). Additionally, we compared FO with other dietary oils. The FO median PV was similar to those of algal and sunflower oils, 4...
July 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29534425/potentially-important-therapeutic-interactions-between-antibiotics-and-a-specially-engineered-emulsion-drug-vehicle-containing-krill-oil-based-phospholipids-and-omega-3-fatty-acids
#6
David F Driscoll
The incidence of antimicrobial resistance (AMR) worldwide is increasing as the pipeline for the development of new chemotherapeutic entities is decreasing. Clearly, overexposure to antibiotics, including excessive dosing, is a key factor that fuels AMR. In fact, most of the new antibacterial agents under development are derivatives of existing classes of antibiotics. Novel approaches involving unique antimicrobial combinations, targets, and/or delivery systems are under intense investigation. An innovative combination of active pharmaceutical ingredients (APIs) consisting of antimicrobial drug(s), krill-oil-based phospholipids, and omega-3 fatty acid triglycerides, that may extend the therapeutic viability of currently effective antibiotics, at least until new chemical entities are introduced, is described...
March 10, 2018: Antibiotics
https://www.readbyqxmd.com/read/29507352/modulation-of-mirna-expression-in-aged-rat-hippocampus-by-buttermilk-and-krill-oil
#7
M Carmen Crespo, Joao Tomé-Carneiro, Diego Gómez-Coronado, Emma Burgos-Ramos, Alba García-Serrano, Roberto Martín-Hernández, Shishir Baliyan, Javier Fontecha, César Venero, Alberto Dávalos, Francesco Visioli
The increasing incidence of age-induced cognitive decline justifies the search for complementary ways of prevention or delay. We studied the effects of concentrates of phospholipids, sphingolipids, and/or 3-n fatty acids on the expression of genes or miRNAs related to synaptic activity and/or neurodegeneration, in the hippocampus of aged Wistar rats following a 3-month supplementation. The combination of two phospholipidic concentrates of krill oil (KOC) and buttermilk (BMFC) origin modulated the hippocampal expression of 119 miRNAs (11 were common to both BMFC and BMFC + KOC groups)...
March 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29501159/a-novel-strategy-for-discriminating-marine-oils-by-using-the-positional-distribution-sn-1-sn-2-sn-3-of-omega-3-polyunsaturated-fatty-acids-in-triacylglycerols
#8
Pedro Araujo, Ephrem Tilahun, Yingxu Zeng
A novel strategy for discriminating genuine and adulterated marine oils is proposed. The strategy consists of i) determining the stereospecific distribution (sn-1, sn-2 and sn-3) of omega 3 polyunsaturated fatty acids (ω-3 PUFA) on the backbone of triacylglycerols by using liquid chromatography tandem mass spectrometry; ii) transforming the qualitative stereospecific information into quantitative data by means of a novel strategy; iii) analyzing the transformed data by principal component analysis. The proposed strategy was tested on pure oils (seal, salmon, cod liver, sandeel, blue whiting, herring), a mixture of blue whiting, herring, sandeel and Norway pout and some intentionally adulterated oils...
May 15, 2018: Talanta
https://www.readbyqxmd.com/read/29488138/intranasal-cotinine-plus-krill-oil-facilitates-fear-extinction-decreases-depressive-like-behavior-and-increases-hippocampal-calcineurin-a-levels-in-mice
#9
Nathalie Alvarez-Ricartes, Patricia Oliveros-Matus, Cristhian Mendoza, Nelson Perez-Urrutia, Florencia Echeverria, Alexandre Iarkov, George E Barreto, Valentina Echeverria
Failure in fear extinction is one of the more troublesome characteristics of posttraumatic stress disorder (PTSD). Cotinine facilitates fear memory extinction and reduces depressive-like behavior when administered 24 h after fear conditioning in mice. In this study, it was investigated the behavioral and molecular effects of cotinine, and other antidepressant preparations infused intranasally. Intranasal (IN) cotinine, IN krill oil, IN cotinine plus krill oil, and oral sertraline were evaluated on depressive-like behavior and fear retention and extinction after fear conditioning in C57BL/6 mice...
February 27, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29397560/buttermilk-and-krill-oil-phospholipids-improve-hippocampal-insulin-resistance-and-synaptic-signaling-in-aged-rats
#10
Joao Tomé-Carneiro, M Carmen Crespo, Emma Burgos-Ramos, Cristina Tomas-Zapico, Alba García-Serrano, Pilar Castro-Gómez, Cesar Venero, Inmaculada Pereda-Pérez, Shishir Baliyan, Azucena Valencia, Javier Fontecha, Alberto Dávalos, Francesco Visioli
Impaired glucose metabolism and mitochondrial decay greatly increase with age, when cognitive decline becomes rampant. No pharmacological or dietary intervention has proven effective, but proper diet and lifestyle do postpone the onset of neurodegeneration and some nutrients are being investigated. We studied insulin signaling, mitochondrial activity and biogenesis, and synaptic signaling in the hippocampus and cortex following dietary supplementation with bioactive phospholipid concentrates of krill oil (KOC), buttermilk fat globule membranes (BMFC), and a combination of both in aged rats...
February 3, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29372051/effects-of-krill-oil-and-lean-and-fatty-fish-on-cardiovascular-risk-markers-a-randomised-controlled-trial
#11
Amanda Rundblad, Kirsten B Holven, Inge Bruheim, Mari C Myhrstad, Stine M Ulven
Fish consumption and supplementation with n -3 fatty acids reduce CVD risk. Krill oil is an alternative source of marine n -3 fatty acids and few studies have investigated its health effects. Thus, we compared krill oil supplementation with the intake of fish with similar amounts of n -3 fatty acids on different cardiovascular risk markers. In an 8-week randomised parallel study, thirty-six healthy subjects aged 18-70 years with fasting serum TAG between 1·3 and 4·0 mmol/l were randomised to receive either fish, krill oil or control oil...
2018: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29350764/the-protective-effect-of-antarctic-krill-oil-on-cognitive-function-by-inhibiting-oxidative-stress-in-the-brain-of-senescence-accelerated-prone-mouse-strain-8-samp8-mice
#12
Qian Li, Fengjuan Wu, Min Wen, Teruyoshi Yanagita, Changhu Xue, Tiantian Zhang, Yuming Wang
Alzheimer's disease (AD) is a common neurodegenerative disorder, and oxidative stress plays a vital role in its progression. Antarctic krill oil (AKO) is rich in polyunsaturated fatty acids, which has various biological activities, such as improving insulin sensitivity, alleviating inflammation and ameliorating oxidative stress. In this study, the protective effect of AKO against AD were investigated in senescence-accelerated prone mouse strain 8 (SAMP8) mice. Results showed that treatment with AKO could effectively ameliorate learning and memory deficits and ease the anxiety in SAMP8 mice by Morris water maze, Barnes maze test and open-field test...
February 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29329855/production-of-three-types-of-krill-oils-from-krill-meal-by-a-three-step-solvent-extraction-procedure
#13
Dan Xie, Hongyan Mu, Tianpei Tang, Xiaosan Wang, Wei Wei, Jun Jin, Xingguo Wang, Qingzhe Jin
In this study, a three-step extraction method (separately use acetone, hexane, and ethanol as extraction solvent in each step) was conducted to selectively extract three types of krill oils with different compositions. The lipid yields were 5.08% in step 1, 4.80% in step 2, and 9.11% in step 3, with a total of 18.99%. The krill oil extracted with acetone in step 1 (A-KO) contained the lowest contents of phospholipids (PL) (2.32%) and n-3 polyunsaturated fatty acids (PUFA) (16.63%), but the highest levels of minor components (505...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29222893/postprandial-long-chain-n-3-polyunsaturated-fatty-acid-response-to-krill-oil-and-fish-oil-consumption-in-healthy-women-a-randomised-controlled-single-dose-crossover-study
#14
Hyunsin H Sung, Andrew J Sinclair, Paul A Lewandowski, Xiao Q Su
BACKGROUND AND OBJECTIVES: Krill oil (KO) and fish oil (FO) are good sources of health-benefiting long chain n- 3 polyunsaturated fatty acids (LC n-3 PUFA), EPA and DHA. There are conflicting outcomes on the bioavailability of LC n-3 PUFA from KO compared with FO. This study investigated the postprandial incorporation of LC n- 3 PUFA into plasma lipids following consumption of 5 capsules of KO or FO in comparison with olive oil (OO) control in healthy women. METHODS AND STUDY DESIGN: 10 women (aged 18-45 years) consumed a high-fat (15 g) breakfast, supplemented with 5 g of KO, FO, or OO in a random order with a minimum seven-day washout period between the supplementations...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29206479/microencapsulation-of-esterified-krill-oil-using-complex-coacervation
#15
Selim Kermasha, Sarya Aziz, Jagpreet Gill, Ronald Neufeld
The microencapsulation of the esterified krill oil (EKO), obtained from the transesterification of krill oil (KO) with 3,4-dihydroxyphenylacetic acid (DHPA), via complex coacervation and was investigated. The experimental findings showed that the DHPA and phenolic lipids (PLs) in the EKO affected the stability of the gelatine (GE)-EKO emulsion. To improve its stability, the effects of varying the pH of GE and the use of two emulsification devices, including the homogeniser and ultrasonic liquid processor were investigated, where the ultrasonic liquid processor was found to be a relatively more appropriate emulsification device...
January 2018: Journal of Microencapsulation
https://www.readbyqxmd.com/read/29182579/antarctic-krill-oil-diet-protects-against-lipopolysaccharide-induced-oxidative-stress-neuroinflammation-and-cognitive-impairment
#16
Ji Yeon Choi, Jun Sung Jang, Dong Ju Son, Hyung-Sik Im, Ji Yeong Kim, Joung Eun Park, Won Rak Choi, Sang-Bae Han, Jin Tae Hong
Oxidative stress and neuroinflammation are implicated in the development and pathogenesis of Alzheimer's disease (AD). Here, we investigated the anti-inflammatory and antioxidative effects of krill oil. Oil from Euphausia superba (Antarctic krill), an Antarctic marine species, is rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). We examined whether krill oil diet (80 mg/kg/day for one month) prevents amyloidogenesis and cognitive impairment induced by intraperitoneal lipopolysaccharide (LPS) (250 µg/kg, seven times daily) injections in AD mice model and found that krill oil treatment inhibited the LPS-induced memory loss...
November 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29157255/effects-of-antarctic-krill-oil-on-lipid-and-glucose-metabolism-in-c57bl-6j-mice-fed-with-high-fat-diet
#17
Dewei Sun, Liang Zhang, Hongjian Chen, Rong Feng, Peirang Cao, Yuanfa Liu
BACKGROUND: Obesity and other metabolic diseases have become epidemic which greatly affect human health. Diets with healthy nutrition are efficient means to prevent this epidemic occurrence. Novel food resources and process technology were needed for these purpose. In this study, Antarctic krill oil (KO) extracted from a dry krill by a procedure of hot pump dehydration in combined with freezing-drying was used to investigate health effect in animals including the growth, lipid and glucose metabolism...
November 21, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29120783/micro-emulsification-encapsulation-of-krill-oil-by-complex-coacervation-with-krill-protein-isolated-using-isoelectric-solubilization-precipitation
#18
Liu Shi, Sarah K Beamer, Hong Yang, Jacek Jaczynski
This study determined feasibility of krill protein isolated with isoelectric solubilization/precipitation (ISP) as wall material to microencapsulate krill oil by freeze-drying. Effects of krill oil/krill protein ratio on properties of microcapsules were investigated. With increased ratio, crude protein of microcapsules decreased, while total lipid increased. Although microcapsule oil loading capacity increased, loading and encapsulation efficiencies decreased. Thin layer chromatography (TLC) confirmed abundance of phospholipids, which are amphiphilic; and thus, resulted in stable emulsion (emulsion stability index)...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29113061/effects-of-marine-oils-digested-with-human-fluids-on-cellular-viability-and-stress-protein-expression-in-human-intestinal-caco-2-cells
#19
Cecilia Tullberg, Gerd Vegarud, Ingrid Undeland, Nathalie Scheers
In vitro digestion of marine oils has been reported to promote lipid oxidation, including the formation of reactive aldehydes (e.g., malondialdehyde (MDA) and 4-hydroxy-2-hexenal (HHE)). We aimed to investigate if human in vitro digestion of supplemental levels of oils from algae, cod liver, and krill, in addition to pure MDA and HHE, affect intestinal Caco-2 cell survival and oxidative stress. Cell viability was not significantly affected by the digests of marine oils or by pure MDA and HHE (0-90 μM). Cellular levels of HSP-70, a chaperone involved in the prevention of stress-induced protein unfolding was significantly decreased (14%, 28%, and 14% of control for algae, cod and krill oil, respectively; p ≤ 0...
November 4, 2017: Nutrients
https://www.readbyqxmd.com/read/29098414/microbial-diversity-and-composition-in-different-gut-locations-of-hyperlipidemic-mice-receiving-krill-oil
#20
Chenyang Lu, Tingting Sun, Yanyan Li, Dijun Zhang, Jun Zhou, Xiurong Su
Low-dose (LD, 100 mg kg-1  day-1 ), moderate-dose (MD, 200 mg kg-1  day-1 ), and high-dose (HD, 600 mg kg-1  day-1 ) krill oil treatments have a stepwise, enhanced effect on alleviating hyperlipidemia, and 16S rRNA sequencing of the fecal samples demonstrates that krill oil treatment alters microbial communities. Feces may not represent all microbial communities in the gastrointestinal (GI) tract. Therefore, in this study, the stored ileal and colon samples collected from LD and HD groups were sequenced, and the location-specific modulations of microbial communities were observed after krill oil treatments...
January 2018: Applied Microbiology and Biotechnology
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