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Lipid accumulation product

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https://www.readbyqxmd.com/read/28646459/silymarin-inhibits-adipogenesis-in-the-adipocytes-in-grass-carp-ctenopharyngodon-idellus-in-vitro-and-in-vivo
#1
Peizhen Xiao, Zhou Yang, Jian Sun, Jingjing Tian, Zhiguang Chang, Xuexian Li, Baotong Zhang, Yuantu Ye, Hong Ji, Ermeng Yu, Jun Xie
In this study, two experiments were performed to explore the function of silymarin in adipogenesis in grass carp (Ctenopharyngodon idellus) using in vitro and in vivo models. In experiment 1, differentiated grass carp pre-adipocytes were treated with silymarin for 6 days. Treatment with 100 μg mL(-1)silymarin (SM100 group) significantly reduced triglyceride accumulation at day 6. The adipogenic gene expression levels of PPARγ, C/EBPα, SREBP1c, FAS, SCD1, and LPL, and the protein expression level of PPARγ were significantly down-regulated in the SM100 group...
June 23, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28645566/using-straw-hydrolysate-to-cultivate-chlorella-pyrenoidosa-for-high-value-biomass-production-and-the-nitrogen-regulation-for-biomass-composition
#2
Tian-Yuan Zhang, Xiao-Xiong Wang, Yin-Hu Wu, Jing-Han Wang, Victor M Deantes-Espinosa, Lin-Lan Zhuang, Hong-Ying Hu, Guang-Xue Wu
Heterotrophic cultivation of Chlorella pyrenoidosa based on straw substrate was proposed as a promising approach in this research. The straw pre-treated by ammonium sulfite method was enzymatically hydrolyzed for medium preparation. The highest intrinsic growth rate of C. pyrenoidosa reached to 0.097h(-1) in hydrolysate medium, which was quicker than that in glucose medium. Rising nitrogen concentration could significantly increase protein content and decrease lipid content in biomass, meanwhile fatty acids composition kept stable...
May 17, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28639015/phytoextraction-of-pb-cr-ni-and-zn-using-the-aquatic-plant-limnobium-laevigatum-and-its-potential-use-in-the-treatment-of-wastewater
#3
Daniela Silvina Arán, Carlos Alfredo Harguinteguy, Alicia Fernandez-Cirelli, María Luisa Pignata
In order to study the bioaccumulation of Pb, Cr, Ni, and Zn and the stress response, the floating aquatic plant Limnobium laevigatum was exposed to increasing concentrations of a mixture of these metals for 28 days, and its potential use in the treatment of wastewater was evaluated. The metal concentrations of the treatment 1 (T1) were Pb 1 μg L(-1), Cr 4 μg L(-1), Ni 25 μg L(-1), and Zn 30 μg L(-1); of treatment 2 (T2) were Pb 70 μg L(-1), Cr 70 μg L(-1), Ni 70 μg L(-1), and Zn 70 μg L(-1); and of treatment 3 (T3) were Pb 1000 μg L(-1), Cr 1000 μg L(-1), Ni 500 μg L(-1), and Zn 100 μg L(-1), and there was also a control group (without added metal)...
June 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28638015/-microelemental-homeostasis-correction-of-and-oxidative-stress-in-patients-with-acute-intestinal-obstruction
#4
V D Scripko, A L Kovalenko, V A Zaplutonov
AIM: To improve the results of treatment of patients with acute small bowel obstruction. MATERIAL AND METHODS: The research is based on the results of a comprehensive survey 202 people with acute small bowel obstruction. Reamberin was used in 102 patients treatment. RESULTS: It was established that metalloenzymes take an active part in the formation of endotoxemia in people with acute small bowel obstruction. Also, in patients as a result of an imbalance between oxidant and antioxidant systems, accumulated a significant amount of lipid peroxidation products, along with it a decrease activity of enzymes of antioxidant system...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28634846/lipid-accumulation-and-metabolic-analysis-based-on-transcriptome-sequencing-of-filamentous-oleaginous-microalgae-tribonema-minus-at-different-growth-phases
#5
Hui Wang, Lili Gao, Huimin Shao, Wenjun Zhou, Tianzhong Liu
Filamentous oleaginous microalgae specie Tribonema minus is a promising feedstock for biodiesel production. However, the metabolic mechanism of lipid production in this filamentous microalgal specie remains unclear. Here, we compared the lipid accumulation of T. minus at different growth phases, and described the de novo transcriptome sequencing and assembly and identified important pathways and genes involved in TAG production. Total lipid increased by 2.5-fold and its TAG level in total lipid reached 81.1% at stationary phase...
June 20, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28632304/are-visceral-adiposity-index-and-lipid-accumulation-product-reliable-indices-for-metabolic-disturbances-in-patients-with-type-2-diabetes-mellitus
#6
Nebojsa Kavaric, Aleksandra Klisic, Ana Ninic
BACKGROUND: Visceral adiposity index (VAI) and Lipid accumulation product (LAP) are novel visceral adiposity indexes, proposed for the evaluation of cardiometabolic risk in adult population. Considering contradictory results obtained from many studies so far, we aimed to examine the potential benefit of applicability of VAI and LAP, over simple anthropometric indices and traditional lipid parameters in individuals with type 2 diabetes mellitus (DM2). METHODS: A total of 180 DM2 (of them 50% females) and 119 controls who volunteered to participate in this cross-sectional study were enrolled...
June 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28630637/evaluation-of-circulating-srage-in-osteoporosis-according-to-bmi-adipokines-and-fracture-risk-a-pilot-observational-study
#7
Emanuela Galliera, Monica Gioia Marazzi, Carmine Gazzaruso, Pietro Gallotti, Adriana Coppola, Tiziana Montalcini, Arturo Pujia, Massimiliano M Corsi Romanelli
BACKGROUND: Osteoporosis is a systemic metabolic disease based on age-dependent imbalance between the rates of bone formation and bone resorption. Recent studies on the pathogenesis of this disease identified that bone remodelling impairment, at the base of osteoporotic bone fragility, could be related to protein glycation, in association to oxidative stress. The glycation reactions lead to the generation of glycation end products (AGEs) which, in turn, accumulates into bone, where they binds to the receptor for AGE (RAGE)...
2017: Immunity & Ageing: I & A
https://www.readbyqxmd.com/read/28628130/lipid-production-in-nannochloropsis-gaditana-is-doubled-by-decreasing-expression-of-a-single-transcriptional-regulator
#8
Imad Ajjawi, John Verruto, Moena Aqui, Leah B Soriaga, Jennifer Coppersmith, Kathleen Kwok, Luke Peach, Elizabeth Orchard, Ryan Kalb, Weidong Xu, Tom J Carlson, Kristie Francis, Katie Konigsfeld, Judit Bartalis, Andrew Schultz, William Lambert, Ariel S Schwartz, Robert Brown, Eric R Moellering
Lipid production in the industrial microalga Nannochloropsis gaditana exceeds that of model algal species and can be maximized by nutrient starvation in batch culture. However, starvation halts growth, thereby decreasing productivity. Efforts to engineer N. gaditana strains that can accumulate biomass and overproduce lipids have previously met with little success. We identified 20 transcription factors as putative negative regulators of lipid production by using RNA-seq analysis of N. gaditana during nitrogen deprivation...
June 19, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28627710/oil-and-eicosapentaenoic-acid-production-by-the-diatom-phaeodactylum-tricornutum-cultivated-outdoors-in-green-wall-panel-gwp%C3%A2-reactors
#9
Liliana Rodolfi, Natascia Biondi, Alessia Guccione, Niccolò Bassi, Massimo D'Ottavio, Gimena Arganaraz, Mario R Tredici
Phaeodactylum tricornutum is a widely studied diatom and has been proposed as a source of oil and polyunsaturated fatty acids (PUFA), particularly eicosapentaenoic acid (EPA). Recent studies indicate that lipid accumulation occurs under nutritional stress. Aim of this research was to determine how changes in nitrogen availability affect productivity, oil yield and fatty acid (FA) composition of P. tricornutum UTEX 640. After preliminary laboratory trials, outdoor experiments were carried out in 40-L GWP® reactors under different nitrogen regimes in batch...
June 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28626640/accumulated-substancies-and-calorific-capacity-in-adipose-tissue-physical-and-chemical-clinical-trial
#10
Kuat Oshakbayev, Bibazhar Dukenbayeva, Gulnar Togizbayeva, Meruyert Gazaliyeva, Alma Syzdykova, Kanat Daurenbekov, Pernekul Issa
AIM: To study physical and chemical structures and properties including calorific value of human adipose tissue in different anatomical location in autopsy-assigned clinical trial. METHODS: A pilot physical and chemical descriptive randomized autopsy-assigned trial. Adipose tissue 252 sampled from 36 individuals at autopsy who between 36 and 63 years old died from road accidents. Interventions: Chemical functional groups and calorific value were studied using infrared and atomic adsorptive spectrometries, elemental chemical analysis and differential scanning calorimetry...
December 2017: BBA Clinical
https://www.readbyqxmd.com/read/28626604/seasonal-shifts-in-accumulation-of-glycerol-biosynthetic-gene-transcripts-in-mountain-pine-beetle-dendroctonus-ponderosae-hopkins-coleoptera-curculionidae-larvae
#11
Jordie D Fraser, Tiffany R Bonnett, Christopher I Keeling, Dezene P W Huber
Winter mortality is a major factor regulating population size of the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae). Glycerol is the major cryoprotectant in this freeze intolerant insect. We report findings from a gene expression study on an overwintering mountain pine beetle population over the course of 35 weeks. mRNA transcript levels suggest glycerol production in the mountain pine beetle occurs through glycogenolytic, gluconeogenic and potentially glyceroneogenic pathways, but not from metabolism of lipids...
2017: PeerJ
https://www.readbyqxmd.com/read/28626422/sphingosine-1-phosphate-receptors-do-they-have-a-therapeutic-potential-in-cardiac-fibrosis
#12
REVIEW
Ambra Vestri, Federica Pierucci, Alessia Frati, Lucia Monaco, Elisabetta Meacci
Sphingosine 1-phosphate (S1P) is a bioactive lipid that is characterized by a peculiar mechanism of action. In fact, S1P, which is produced inside the cell, can act as an intracellular mediator, whereas after its export outside the cell, it can act as ligand of specific G-protein coupled receptors, which were initially named endothelial differentiation gene (Edg) and eventually renamed sphingosine 1-phosphate receptors (S1PRs). Among the five S1PR subtypes, S1PR1, S1PR2 and S1PR3 isoforms show broad tissue gene expression, while S1PR4 is primarily expressed in immune system cells, and S1PR5 is expressed in the central nervous system...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28626214/growth-hormone-releasing-hormone-is-produced-by-adipocytes-and-regulates-lipolysis-through-growth-hormone-receptor
#13
F Rodríguez-Pacheco, C Gutierrez-Repiso, S García-Serrano, A Ho-Plagaro, J M Gómez-Zumaquero, S Valdes, M Gonzalo, J Rivas-Becerra, C Montiel-Casado, G Rojo-Martínez, E García-Escobar, E Garcia-Fuentes
BACKGROUND: Growth hormone-releasing hormone (GHRH) plays a crucial role in growth hormone (GH) secretion, but little is known about its production by adipocytes and its involvement in adipocyte metabolism. OBJECTIVES: To determine if GHRH and its receptor (GHRH-R) are present in human adipocytes and to study their levels in obesity. Also, to analize the effects of GHRH on human adipocyte differentiation and lipolysis. METHODS: GHRH/GHRH-R and GH/GH-R mRNA expression levels were analyzed in human mature adipocytes from non-obese and morbidly obese subjects...
June 19, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28625352/rna-seq-and-metabolic-flux-analysis-of-tetraselmis-sp-m8-during-nitrogen-starvation-reveals-a-two-stage-lipid-accumulation-mechanism
#14
David K Y Lim, Holger Schuhmann, Skye R Thomas-Hall, Kenneth C K Chan, Taylor J Wass, Felipe Aguilera, T Catalina Adarme-Vega, Cristiana G O Dal'Molin, Glen J Thorpe, Jacqueline Batley, David Edwards, Peer M Schenk
To map out key lipid-related pathways that lead to rapid triacylglyceride accumulation in oleaginous microalgae, RNA-Seq was performed with Tetraselmis sp. M8 at 24h after exhaustion of exogenous nitrogen to reveal molecular changes during early stationary phase. Further gene expression profiling by quantitative real-time PCR at 16-72h revealed a distinct shift in expression of the fatty acid/triacylglyceride biosynthesis and β-oxidation pathways, when cells transitioned from log-phase into early-stationary and stationary phase...
June 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28625124/occurrence-and-importance-of-plant-lipids-a-promising-insight-into-algae
#15
Nihed Ben Halima
BACKGROUND: Lipids are biomolecules with interesting structural variability. They are involved in many processes such as the storage of energy, in nutrition and are also of relevance for signal transduction processes, in apoptosis, cell differentiation and phagocytosis, etc. Algae and microalgae are a promising and very diverse group of organisms. These living arganisms inhabit a vaste range of ecosystems from the Antarctic to the Deserts. They account for above half the primary productivity at the base of the food chain because of their multiple nutritional products including, for instance, lipids...
June 19, 2017: Recent Patents on Food, Nutrition & Agriculture
https://www.readbyqxmd.com/read/28624998/efficient-conversion-of-fructose-based-biomass-into-lipids-with-trichosporon-fermentans-under-phosphate-limited-conditions
#16
Ruiqi Bao, Xiangying Wu, Sasa Liu, Tongzhou Xie, Chenxu Yu, Xinping Lin
Limiting nitrogen supply has been routinely used as the master regulator to direct lipid biosynthesis. However, this strategy does not work with nitrogen-rich substrates, such as Jerusalem artichoke (JA), a fructose-based biomass, while it is difficult to obtain a high carbon-to-nitrogen (C/N) molar ratio. In this study, an alternative strategy to promote lipid accumulation by the oleaginous yeast Trichosporon fermentans CICC 1368 was developed by limiting phosphorous supply, and this strategy was implemented with JA hydrolysate as substrate...
June 17, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28624246/uv-c-irradiation-accelerates-neutral-lipid-synthesis-in-the-marine-oleaginous-diatom-fistulifera-solaris
#17
Atsushi Arakaki, Takuya Matsumoto, Takuma Tateishi, Mitsufumi Matsumoto, Daisuke Nojima, Yoshino Tomoko, Tsuyoshi Tanaka
This study investigated the induction of oil synthesis in the oleaginous diatom, Fistulifera solaris, following irradiation with small doses of UV-C. A rapid induction of oil accumulation was confirmed within 6h following UV-C radiation of the diatom cells, with increases in cell oil body volumes after 24h of approximately 4- to 6-fold from the initial volume. Reactive oxygen species (ROS), which can be generated by a UV-C-mediated reaction, were detected in irradiated cells and the correlation between ROS generation and oil accumulation was confirmed...
June 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28624244/evolutionary-engineering-of-salt-resistant-chlamydomonas-sp-strains-reveals-salinity-stress-activated-starch-to-lipid-biosynthesis-switching
#18
Yuichi Kato, Shih-Hsin Ho, Christopher J Vavricka, Jo-Shu Chang, Tomohisa Hasunuma, Akihiko Kondo
The aim of this study was to improve biomass production of the green microalga Chlamydomonas sp. JSC4 under high salinity conditions. For this purpose, heavy ion beam-coupled mutagenesis and evolutionary engineering were performed using JSC4 as the parent strain. After long-term and continuous cultivation with high salinity, salt-resistant strains that grow well even in the presence of 7% sea salt were successfully obtained. Transcriptional analysis revealed inactivation of starch-to-lipid biosynthesis switching, which resulted in delayed starch degradation and decreased lipid content in the salt-resistant strains...
June 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28623565/the-novel-oleaginous-bacterium-sphingomonas-sp-egy1-dsm-29616-a-value-added-platform-for-renewable-biodiesel
#19
Nehad N Amer, Yasser Elbahloul, Amira M Embaby, Ahmed Hussein
Oleaginous microorganisms are regarded as efficient, renewable cell factories for lipid biosynthesis, a biodiesel precursor, to overwhelm the cosmopolitan energy crisis with affordable investment capital costs. Present research highlights production and characterization of lipids by a newly isolated oleaginous bacterium, Sphingomonas sp. EGY1 DSM 29616 through an eco-friendly approach. Only sweet whey [42.1% (v/v)] in tap water was efficiently used as a growth medium and lipid production medium to encourage cell growth and trigger lipid accumulation simultaneously...
July 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28620184/transcriptomic-analysis-of-the-regulation-of-lipid-fraction-migration-and-fatty-acid-biosynthesis-in-schizochytrium-sp
#20
Lujing Ren, Xuechao Hu, Xiaoyan Zhao, Shenglan Chen, Yi Wu, Dan Li, Yadong Yu, Lingjun Geng, Xiaojun Ji, He Huang
Schizochytrium sp. is the main source of docosahexaenoic acid-rich oil, which is widely used in food additive and pharmaceutical industry. In this study, using RNA-seq, comparative transcriptomic analyses were performed at four stages of DHA fermentation by Schizochytrium sp to get potential genes related to cell transition from cell growth to lipid accumulation and then to lipid turnover. 1406, 385, 1384 differently expressed genes were identified by comparisons in pairs of S2 vs S1, S3 vs S2 and S4 vs S3...
June 15, 2017: Scientific Reports
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