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Lipid metabolism

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https://www.readbyqxmd.com/read/28212448/hepatic-transcriptome-analysis-and-identification-of-differentially-expressed-genes-response-to-dietary-oxidized-fish-oil-in-loach-misgurnus-anguillicaudatus
#1
Yin Zhang, Yang Li, Xiao Liang, Xiaojuan Cao, Longfei Huang, Jie Yan, Yanxing Wei, Jian Gao
RNA sequencing and short-read assembly were utilized to produce a transcriptome of livers from loaches (Misgurnus anguillicaudatus) fed with three different diets respectively containing fresh fish oil (FO group), medium oxidized fish oil (MO group) and high oxidized fish oil (HO group). A total of 60,663 unigenes were obtained in this study, with mean length 848.74 bp. 50,814, 49,584 and 49,814 unigenes were respectively obtained from FO, MO and HO groups. There were 2,343 differentially expressed genes between FO and MO, with 855 down- and 1,488 up-regulated genes in the MO group...
2017: PloS One
https://www.readbyqxmd.com/read/28212433/elevated-gm3-plasma-concentration-in-idiopathic-parkinson-s-disease-a-lipidomic-analysis
#2
Robin B Chan, Adler J Perotte, Bowen Zhou, Christopher Liong, Evan J Shorr, Karen S Marder, Un J Kang, Cheryl H Waters, Oren A Levy, Yimeng Xu, Hong Bin Shim, Itsik Pe'er, Gilbert Di Paolo, Roy N Alcalay
Parkinson's disease (PD) is a common neurodegenerative disease whose pathological hallmark is the accumulation of intracellular α-synuclein aggregates in Lewy bodies. Lipid metabolism dysregulation may play a significant role in PD pathogenesis; however, large plasma lipidomic studies in PD are lacking. In the current study, we analyzed the lipidomic profile of plasma obtained from 150 idiopathic PD patients and 100 controls, taken from the 'Spot' study at Columbia University Medical Center in New York. Our mass spectrometry based analytical panel consisted of 520 lipid species from 39 lipid subclasses including all major classes of glycerophospholipids, sphingolipids, glycerolipids and sterols...
2017: PloS One
https://www.readbyqxmd.com/read/28212431/mediterranean-dietary-pattern-and-vegf-405-g-c-gene-polymorphisms-in-patients-with-metabolic-syndrome-an-aspect-of-gene-nutrient-interaction
#3
Ghazaleh Hajiluian, Mahdieh Abbasalizad Farhangi, Leila Jahangiry
AIMS: To evaluate the relationship between Mediterranean dietary pattern, anthropometric and metabolic biomarkers and vascular endothelial growth factor (VEGF) +405 G/C gene polymorphism in patient with metabolic syndrome (Mets). MATERIALS AND METHODS: In this study 150 patients with Mets and 50 healthy subjects were enrolled. Dietary intakes were evaluated with a semi-quantitative food-frequency questionnaire (FFQ) and Mediterranean dietary quality index (Med-DQI) was assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28212341/physicochemical-characterization-and-biological-activities-of-the-triterpenic-mixture-%C3%AE-%C3%AE-amyrenone
#4
Rosilene G S Ferreira, Walter F Silva Júnior, Valdir F Veiga Junior, Ádley A N Lima, Emerson S Lima
α-Amyrenone and β-amyrenone are triterpenoid isomers that occur naturally in very low concentrations in several oleoresins from Brazilian Amazon species of Protium (Burseraceae). This mixture can also be synthesized by oxidation of α,β-amyrins, obtained as major compounds from the same oleoresins. Using a very simple, high yield procedure, and using a readily commercially available mixture of α,β-amyrins as substrate, the binary compound α,β-amyrenone was synthesized and submitted to physico-chemical characterization using different techniques such as high-performance liquid chromatography, nuclear magnetic resonance (¹H and (13)C), mass spectrometry, scanning electron microscopy, differential scanning calorimetry, thermogravimetry and derivative thermogravimetry, and Fourier transform infrared spectroscopy (FTIR)...
February 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28212318/alcohol-%C3%A2-adipose%C3%A2-tissue%C3%A2-and%C3%A2-lipid%C3%A2-dysregulation
#5
Jennifer L Steiner, Charles H Lang
Chronic alcohol consumption perturbs lipid metabolism as it increases adipose tissue lipolysis and leads to ectopic fat deposition within the liver and the development of alcoholic fatty liver disease. In addition to the recognition of the role of adipose tissue derived fatty acids in liver steatosis, alcohol also impacts other functions of adipose tissue and lipid metabolism. Lipid balance in response to long-term alcohol intake favors adipose tissue loss and fatty acid efflux as lipolysis is upregulated and lipogenesis is either slightly decreased or unchanged...
February 16, 2017: Biomolecules
https://www.readbyqxmd.com/read/28211872/rictor-mtorc2-deficiency-enhances-keratinocyte-stress-tolerance-via-mitohormesis
#6
Beatrice Tassone, Stefania Saoncella, Francesco Neri, Ugo Ala, Davide Brusa, Mark A Magnuson, Paolo Provero, Salvatore Oliviero, Chiara Riganti, Enzo Calautti
How metabolic pathways required for epidermal tissue growth and remodeling influence the ability of keratinocytes to survive stressful conditions is still largely unknown. The mechanistic target of rapamycin complex 2 (mTORC2) regulates growth and metabolism of several tissues, but its functions in epidermal cells are poorly defined. Rictor is an adaptor protein essential for mTORC2 activity. To explore the roles of mTORC2 in the epidermis, we have conditionally deleted rictor in mice via K14-Cre-mediated homologous recombination and found that its deficiency causes moderate tissue hypoplasia, reduced keratinocyte proliferation and attenuated hyperplastic response to TPA...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28211812/recent-progress-in-alzheimer-s-disease-research-part-2-genetics-and-epidemiology
#7
Morgan Robinson, Brenda Y Lee, Francis T Hane
This is the second part of a three-part review series reviewing the most important advances in Alzheimer's disease (AD) research since 2010. This review covers the latest research on genetics and epidemiology. Epidemiological and genetic studies are revealing important insights into the etiology of, and factors that contribute to AD, as well as areas of priority for research into mechanisms and interventions. The widespread adoption of genome wide association studies has provided compelling evidence of the genetic complexity of AD with genes associated with such diverse physiological function as immunity and lipid metabolism being implicated in AD pathogenesis...
February 16, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28211464/molecular-basis-of-abhd5-lipolysis-activation
#8
Matthew A Sanders, Huamei Zhang, Ljiljana Mladenovic, Yan Yuan Tseng, James G Granneman
Alpha-beta hydrolase domain-containing 5 (ABHD5), the defective gene in human Chanarin-Dorfman syndrome, is a highly conserved regulator of adipose triglyceride lipase (ATGL)-mediated lipolysis that plays important roles in metabolism, tumor progression, viral replication, and skin barrier formation. The structural determinants of ABHD5 lipolysis activation, however, are unknown. We performed comparative evolutionary analysis and structural modeling of ABHD5 and ABHD4, a functionally distinct paralog that diverged from ABHD5 ~500 million years ago, to identify determinants of ABHD5 lipolysis activation...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211103/impaired-learning-and-memory-in-rats-induced-by-a-high-fat-diet-involvement-with-the-imbalance-of-nesfatin-1-abundance-and-copine-6-expression
#9
Zheng Chen, Ya-Yun Xu, Rui Wu, Yin-Xiu Han, Yue Yu, Jin-Fang Ge, Fei-Hu Chen
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease, resulting not only in liver dysfunction, glucose and lipid metabolism disorder, but also in neuropsychiatric damage. In the present study, a NAFLD rat model was established via feeding of a high-fat diet, and the behavior was observed via the open field test (OFT), the sucrose preference test (SPT), the elevated plus maze (EPM), the forced swimming test (FST), and the Morris water maze (MWM). The plasma concentrations of alanine aminotransferase (ALT), glucose, free fatty acid (FFA), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were detected using chemiluminescence technique...
February 17, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28210754/targeted-lipidomics-profiling-of-acute-arsenic-exposure-in-mice-serum-by-on-line-solid-phase-extraction-stable-isotope-dilution-liquid-chromatography-tandem-mass-spectrometry
#10
Chao-Yu Chen, Pinpin Lin, Ming-Hsien Tsai, Hui-Ling Lee
Lipidomics is the area of study dedicated to the comprehensive analysis and characterization of the functions and metabolism of lipids in biological samples. One of the most comprehensively studied classes of lipids is polyunsaturated fatty acids (PUFAs). Eicosanoids are a series of bioactive lipid mediators that are metabolized from PUFAs and generated majorly from the precursor arachidonic acid. This study identified the profiles of target eicosanoids after acute exposure to arsenic. The principle objective was to determine and validate 10 eicosanoids in mouse serum using on-line solid-phase extraction integrated with liquid chromatography-electrospray tandem mass spectrometry...
February 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28210565/label-free-proteome-analysis-of-plasma-from-patients-with-breast-cancer-stage-specific-protein-expression
#11
Marina Duarte Pinto Lobo, Frederico Bruno Mendes Batista Moreno, Gustavo Henrique Martins Ferreira Souza, Sara Maria Moreira Lima Verde, Renato de Azevedo Moreira, Ana Cristina de Oliveira Monteiro-Moreira
Breast cancer is one of the most commonly diagnosed types of cancer among women. Breast cancer mortality rates remain high probably because its diagnosis is hampered by inaccurate detection methods. Since changes in protein expression as well as modifications in protein glycosylation have been frequently reported in cancer development, the aim of this work was to study the differential expression as well as modifications of glycosylation of proteins from plasma of women with breast cancer at different stages of disease (n = 30) compared to healthy women (n = 10)...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28210262/morphoproteomic-guided-host-directed-therapy-for-tuberculosis
#12
Robert E Brown, Robert L Hunter, Shen-An Hwang
In an effort to develop more effective therapy for tuberculosis (TB), research efforts are looking toward host-directed therapy, reprograming the body's natural defenses to better control the infection. While significant progress is being made, the efforts are limited by lack of understanding of the pathology and pathogenesis of adult type TB disease. We have recently published evidence that the developing lesions in human lungs are focal endogenous lipid pneumonia that constitutes a region of local susceptibility in a person with strong systemic immunity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209760/glucoraphanin-ameliorates-obesity-and-insulin-resistance-through-adipose-tissue-browning-and-reduction-of-metabolic-endotoxemia-in-mice
#13
Naoto Nagata, Liang Xu, Susumu Kohno, Yusuke Ushida, Yudai Aoki, Ryohei Umeda, Nobuo Fuke, Fen Zhuge, Yinhua Ni, Mayumi Nagashimada, Chiaki Takahashi, Hiroyuki Suganuma, Shuichi Kaneko, Tsuguhito Ota
Low-grade sustained inflammation links obesity to insulin resistance and nonalcoholic fatty liver disease (NAFLD). However, therapeutic approaches to improve systemic energy balance and chronic inflammation in obesity are limited. Pharmacological activation of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) alleviates obesity and insulin resistance in mice; however, Nrf2 inducers are not clinically available owing to safety concerns. Thus, we examined whether dietary glucoraphanin, a stable precursor of the Nrf2 inducer sulforaphane, ameliorates systemic energy balance, chronic inflammation, insulin resistance, and NAFLD in high-fat diet (HFD)-fed mice...
February 16, 2017: Diabetes
https://www.readbyqxmd.com/read/28209494/effect-of-early-onset-preeclampsia-on-cardiovascular-risk-in-the-fifth-decade-of-life
#14
Anouk Bokslag, Pim W Teunissen, Constantijn Franssen, Floortje van Kesteren, Otto Kamp, Wessel Ganzevoort, Walter J Paulus, Christianne J M de Groot
BACKGROUND: Women with hypertensive disorders in pregnancy, in particular early-onset preeclampsia, are at increased risk of developing cardiovascular disease later in life. These women have a more than two-fold increased risk to die from cardiovascular diseases. Most studies focused on identification of risk factors shortly after pregnancy. Less is known on the prevalence of risk factors or actual signs of cardiovascular disease 5 - 20 years later. The presence of hypertension or metabolic syndrome can be seen as an opportunity for preventive interventions to reduce the development of severe cardiovascular diseases like myocardial infarction and stroke...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28209487/lipoxin-a4-suppresses-osteoclastogenesis-in-raw264-7-cells-and-prevents-ovariectomy-induced-bone-loss
#15
Changyu Liu, Hanfeng Guan, Cong Cai, Feng Li, Jun Xiao
Lipoxin A4 (LXA4; 5S, 6R, 15Strihydroxy- 7,9,13-trans-11-eicosatetraenoic acid) is a metabolic product of arachidonic acid under the action of lipoxidase. This lipid molecule plays important roles in several biological functions, especially inflammatory processes. In vivo, LXA4 regulates the inflammatory response through several signaling pathways. Its mechanism suggests that it might have an effect on osteoclastogenesis and bone loss. Using both in vitro and in vivo studies, it was here observed that LXA4 could significantly inhibit the formation and function of osteoclasts and these effects could be blocked by Boc-2, the specific inhibitor of FPR2/ALX (the receptor of LXA4)...
February 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28209485/effects-of-clozapine-on-adipokine-secretions-productions-and-lipid-droplets-in-3t3-l1-adipocytes
#16
Tomomi Tsubai, Akira Yoshimi, Yoji Hamada, Makoto Nakao, Hiroshi Arima, Yutaka Oiso, Yukihiro Noda
Clozapine, a second-generation antipsychotic (SGA), is a cause of side effects related to metabolic syndrome. The participation of serotonin 5-HT2C and histamine H1 receptors in the central nervous system has been reported as a mechanism of the weight gain caused by clozapine. In the present study, we investigated the direct pharmacological action of clozapine on the 3T3-L1 adipocytes and compared it to that of blonanserin, an SGA with low affinity for both receptors. Short-term exposure to clozapine decreased secretion and mRNA expression of leptin...
January 28, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28209457/metabolomic-approach-reveals-the-biochemical-mechanisms-underlying-drought-stress-tolerance-in-thyme
#17
Parviz Moradi, Brian Ford-Lloyd, Jeremy Pritchard
Thyme as a perennial herb has been recognized globally for its antimicrobial, antiseptic and spasmolytic effects. In this investigation, we have used non-targeted metabolite and volatile profiling combined with the morpho-physiological parameters in order to understand the responses at the metabolite and physiological level in drought sensitive and tolerant thyme plant populations. The results at the metabolic level identified the significantly affected metabolites. Significant metabolites belonging to different chemical classes consisting amino acids, carbohydrates, organic acids and lipids have been compared in tolerant and sensitive plants...
February 13, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28209386/dietary-therapy-in-heart-failure-with-preserved-ejection-fraction-and-or-left-ventricular-diastolic-dysfunction-in-patients-with-metabolic-syndrome
#18
REVIEW
Helene von Bibra, Alexander Ströhle, Martin St John Sutton, Nicolai Worm
BACKGROUND: Heart failure is an ongoing epidemic of left ventricular (LV) dilatation and/or dysfunction due to the increasing prevalence of predisposing risk factors such as age, physical inactivity, (abdominal) obesity, and type-2-diabetes. Approximately half of these patients have diastolic heart failure (HFpEF). The prognosis of HFpEF is comparable to that of systolic heart failure, but without any known effective treatment. DIASTOLIC DYSFUNCTION: A biomathematically corrected diagnostic approach is presented that quantifies diastolic dysfunction via the predominant age dependency of LV diastolic function and unmasks (metabolic) risk factors, that are independent of age and, therefore, potential targets for therapy...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28209220/very-low-density-lipoprotein-associated-apolipoproteins-predict-cardiovascular-events-and-are-lowered-by-inhibition%C3%A2-of%C3%A2-apoc-iii
#19
Raimund Pechlaner, Sotirios Tsimikas, Xiaoke Yin, Peter Willeit, Ferheen Baig, Peter Santer, Friedrich Oberhollenzer, Georg Egger, Joseph L Witztum, Veronica J Alexander, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: Routine apolipoprotein (apo) measurements for cardiovascular disease (CVD) are restricted to apoA-I and apoB. Here, the authors measured an unprecedented range of apolipoproteins in a prospective, population-based study and relate their plasma levels to risk of CVD. OBJECTIVES: This study sought to measure apolipoproteins directly by mass spectrometry and compare their associations with incident CVD and to obtain a system-level understanding of the correlations of apolipoproteins with the plasma lipidome and proteome...
February 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28209193/up601-a-standardized-botanical-composition-composed-of-morus-alba-yerba-mate-and-magnolia-officinalis-for-weight-loss
#20
Mesfin Yimam, Ping Jiao, Mei Hong, Lidia Brownell, Young-Chul Lee, Eu-Jin Hyun, Hyun-Jin Kim, Jeong-Bum Nam, Mi-Ran Kim, Qi Jia
BACKGROUND: The prevalence of obesity is surging in an alarming rate all over the world. Pharmaceutical drugs are considered potential adjunctive therapy to lifestyle modification. However, for most, besides being too expensive, their long term usages are hindered by their severe adverse effects. Here we describe the effect of UP601, a standardized blend of extracts from Morus alba, Yerba mate and Magnolia officinalis, in modulating a number of obesity-related phenotypic and biochemical markers in a high-fat high-fructose (HFF)-induced C57BL/6J mouse model of obesity...
February 16, 2017: BMC Complementary and Alternative Medicine
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