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Glycerophosphocholine

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https://www.readbyqxmd.com/read/29743863/metabolic-fingerprinting-of-joint-tissue-of-collagen-induced-arthritis-cia-rat-in-vitro-high-resolution-nmr-nuclear-magnetic-resonance-spectroscopy-based-analysis
#1
Niraj Kumar Srivastava, Shikha Sharma, Rajkumar Sharma, Neeraj Sinha, Sudhir Kumar Mandal, Deepak Sharma
Rheumatoid arthritis (RA) is a systemic autoimmune disease whose major characteristics persistent joint inflammation that results in joint destruction and failure of the function. Collagen-induced arthritis (CIA) rat is an autoimmune disease model and in many ways shares features with RA. The CIA is associated with systemic manifestations, including alterations in the metabolism. Nuclear magnetic resonance (NMR) spectroscopy-based metabolomics has been successfully applied to the perchloric acid extract of the joint tissue of CIA rat and control rat for the analysis of aqueous metabolites...
2018: EXCLI Journal
https://www.readbyqxmd.com/read/29694867/lipid-configurations-from-molecular-dynamics-simulations
#2
Weria Pezeshkian, Himanschu Khandelia, Derek Marsh
The extent to which current force fields faithfully reproduce conformational properties of lipids in bilayer membranes, and whether these reflect the structural principles established for phospholipids in bilayer crystals, are central to biomembrane simulations. We determine the distribution of dihedral angles in palmitoyl-oleoyl phosphatidylcholine from molecular dynamics simulations of hydrated fluid bilayer membranes. We compare results from the widely used lipid force field of Berger et al. with those from the most recent C36 release of the CHARMM force field for lipids...
April 24, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29666220/synergistic-anti-proliferative-effect-of-mtor-inhibitor-rad001-plus-gemcitabine-on-cholangiocarcinoma-by-decreasing-choline-kinase-activity
#3
Gigin Lin, Kun-Ju Lin, Frank Wang, Tse-Ching Chen, Tzu-Chen Yen, Ta-Sen Yeh
Although gemcitabine plus cisplatin is the gold standard chemotherapy regimen for advanced cholangiocarcinoma, the response rate has been disappointing. This study aims to investigate a novel therapeutic regimen (gemcitabine plus rad001, an mTOR inhibitor) for cholangiocarcinoma. Gemcitabine, oxaliplatin, cetuximab, and rad001 in various combinations were first evaluated in vitro using six cholangiocarcinoma cell lines. In vivo therapeutic efficacies of gemcitabine, rad001 alone and combination were further evaluated using a xenograft mouse model and a chemically induced orthotopic cholangiocarcinoma rat model...
April 12, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29560630/-effect-of-electroacupuncture-at-neiguan-pc-6-on-serum-and-myocardial-metabolites-in-rats-with-myocardial-ischemia-reperfusion-injury-based-on-nuclear-magnetic-resonance-spectroscopy
#4
Ya-Ni Tang, Cheng-Fu Tan, Wei-Wei Liu, Jie Yan, Chao Wang, Mi Liu, Dong-Hai Lin, Cai-Hua Huang, Lin Du, Mei-Lin Chen, Jiao-Lan Li, Ding-Ming Zhu
OBJECTIVE: We have repeatedly demonstrated that electroacupuncture (EA) of "Neiguan"(PC 6) can improve myocardial ischemia in rats. The present study was designed to investigate the metabolomic profile of peripheral blood se-rum and myocardium involving EA-induced improvement of myocardial ischemia-reperfusion injury (MIRI) in rats by using nuclear magnetic resonance spectroscopy. METHODS: Thirty male SD rats were equally randomized into blank control, model and EA groups...
March 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29558412/concentrations-of-water-soluble-forms-of-choline-in-human-milk-from-lactating-women-in-canada-and-cambodia
#5
Alejandra M Wiedeman, Kyly C Whitfield, Kaitlin M March, Nancy N Chen, Hou Kroeun, Ly Sokhoing, Prak Sophonneary, Roger A Dyer, Zhaoming Xu, David D Kitts, Timothy J Green, Sheila M Innis, Susan I Barr
Choline has critical roles during periods of rapid growth and development, such as infancy. In human milk, choline is mostly present in water-soluble forms (free choline, phosphocholine, and glycerophosphocholine). It is thought that milk choline concentration is influenced by maternal choline intake, and the richest food sources for choline are of animal origin. Scarce information exists on milk choline from countries differing in animal-source food availability. In this secondary analysis of samples from previous trials, the concentrations of the water-soluble forms of choline were quantified by liquid chromatography-tandem mass spectrometry in mature milk samples collected from lactating women in Canada ( n = 301) and in Cambodia ( n = 67)...
March 20, 2018: Nutrients
https://www.readbyqxmd.com/read/29508534/total-synthesis-and-biological-evaluation-of-siladenoserinol-a-and-its-analogues
#6
Masahito Yoshida, Koya Saito, Hikaru Kato, Sachiko Tsukamoto, Takayuki Doi
The total synthesis of siladenoserinol A, an inhibitor of the p53-Hdm2 interaction, has been achieved. AuCl3 -catalyzed hydroalkoxylation of an alkynoate derivative smoothly and regioselectively proceeded to afford a bicycloketal in excellent yield. A glycerophosphocholine moiety was successfully introduced through the Horner-Wadsworth-Emmons reaction using an originally developed phosphonoacetate derivative. Finally, removal of the acid-labile protecting groups, followed by regioselective sulfamate formation of the serinol moiety afforded the desired siladenoserinol A, and benzoyl and desulfamated analogues were also successfully synthesized...
April 23, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29471227/the-impact-of-acute-and-short-term-methamphetamine-abstinence-on-brain-metabolites-a-proton-magnetic-resonance-spectroscopy-chemical-shift-imaging-study
#7
Antoinette Burger, Samantha J Brooks, Dan J Stein, Fleur M Howells
BACKGROUND: Abuse of methamphetamine (MA) is a global health concern. Previous 1 H-MRS studies have found that, with methamphetamine abstinence (MAA), there are changes in n-acetyl-aspartate (NAA/Cr), myo-inositol (mI/Cr), choline (Cho/Cr and Cho/NAA), and glutamate with glutamine (Glx) metabolites. Limited studies have investigated the effect of acute MAA, and acute-to-short-term MAA on brain metabolites. METHODS: Adults with chronic MA dependence (n = 31) and healthy controls (n = 22) were recruited...
April 1, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29428958/down-regulation-of-neuropathy-target-esterase-in-preeclampsia-placenta-inhibits-human-trophoblast-cell-invasion-via-modulating-mmp-9-levels
#8
Ting Zhong, Jiaxiang Chen, Yan Ling, Bei Yang, Xingxing Xie, Dainan Yu, Dalei Zhang, Jiexiu Ouyang, Haibin Kuang
BACKGROUND/AIMS: Neuropathy target esterase (NTE, also known as neurotoxic esterase) is proven to deacylate phosphatidylcholine (PC) to glycerophosphocholine as a phospholipase B. Recently; studies showed that artificial phosphatidylserine/PC microvesicles can induce preeclampsia (PE)-like changes in pregnant mice. However, it is unclear whether NTE plays a key role in the pathology of PE, a pregnancy-related disease, which was characterized by deficient trophoblast invasion and reduced trophoblast-mediated remodeling of spiral arteries...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29426181/modeling-the-effects-of-irgarol-1051-on-coral-using-lipidomic-methodology-for-environmental-monitoring-and-assessment
#9
Chuan-Ho Tang, Ching-Yu Lin, Pei-Pei Sun, Shu-Hui Lee, Wei-Hsien Wang
Coral is commonly selected as a bioindicator of detecting a variety of adverse factors such as photosystem II herbicide Irgarol 1051, through measuring pan-type biomarkers. To improve the effectiveness of biomonitoring, omic technologies have recently been applied to model the systemic changes in an organism. Membrane lipids create a dynamic cell structure based on the physiological state, which offers a distinct lipid profile to specifically detect environmental threats and assess the associated health risk...
June 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29350007/-the-metabolic-profilings-study-of-serum-and-spinal-cord-from-acute-spinal-cord-injury-rats-%C3%A2-h-nmr-spectroscopy
#10
Hua-Hui Hu, Xiao-Long Huang, Ren-Fu Quan, Zong-Bao Yang, Jing-Jing Xu
OBJECTIVE: To establish the rat model of acute spinal cord injury, followed by aprimary study on this model with ¹H NMR based on metabonomics and to explore the metabonomics and biomarkers of spinal cord injury rat. METHODS: Twenty eight-week-old adult male SD rats of clean grade, with body weight of (200±10) g, were divided into sham operation group and model group in accordance with the law of random numbers, and every group had 10 rats. The rats of sham operation group were operated without damaging the spinal cord, and rats of model group were made an animal model of spinal cord incomplete injury according to the modified Allen's method...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29315663/circulating-25-hydroxyvitamin-d-nasopharyngeal-airway-metabolome-and-bronchiolitis-severity
#11
K Hasegawa, C J Stewart, J C Celedón, J M Mansbach, C Tierney, C A Camargo
Low circulating 25-hydroxyvitamin D (25OHD) levels are a risk factor for acute respiratory infection (eg, bronchiolitis) in children. However, little is known about the relation of circulating 25OHD with the many downstream functional molecules in target organs-such as the airway-and with clinical outcomes. In this prospective multicenter study of infants (age <1 year) hospitalized with bronchiolitis, we measured serum 25OHD levels and profiled the metabolome of 144 nasopharyngeal airway samples. Among 254 metabolites identified, we defined a set of 20 metabolites that are related to lower serum 25OHD and higher vitamin D-binding protein levels...
January 9, 2018: Allergy
https://www.readbyqxmd.com/read/29287405/direct-infusion-mass-spectrometric-identification-of-molecular-species-of-glycerophospholipid-in-three-species-of-edible-whelk-from-yellow-sea
#12
Kai-Qi Gang, Da-Yong Zhou, Ting Lu, Zhong-Yuan Liu, Qi Zhao, Hong-Kai Xie, Liang Song, Fereidoon Shahidi
Whelk has been exploited commercially as a delicacy for a long time. Although previous studies have suggested that whelk might serve as a potential rich source of long chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFA) enriched phospholipid (PL), the molecular species profile of the PL have not been reported yet. In this study, more than 220 molecular species of glycerophospholipid (GP) belonging to eight classes including glycerophosphocholine, glycerophosphoethanolamine, glycerophosphoserine, glycerophosphoinositol, lysoglycerophosphocholine, lysoglycerophosphoethanolamine, lysoglycerophosphoserine and lysoglycerophosphoinositol in three species of edible whelks (Buccinium yokomaruae, Neptunea arthritica cumingi Cosse and Volutharpa ampullaceal) were identified for the first time by using direct infusion tandem mass spectrometric method...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29215741/analysis-of-sensitive-skin-barrier-function-basic-indicators-and-sebum-composition
#13
L Fan, Y Jia, L Cui, X Li, C He
OBJECTIVES: Sensitive skin (SS) is a condition characterised by high reactivity, low tolerance, and susceptibility to allergies of the skin. Owing to changes in the environment and marketing strategies, as well as the increasing public awareness about skin care, attention to skin condition is gradually increasing. The aim of this study is to explore the differences in the skin barrier of SS and normal skin (NS). METHODS: A questionnaire survey was conducted and basic indicators of the skin barrier were analysed...
December 7, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/29215148/-31-p-t-2-s-of-phosphomonoesters-phosphodiesters-and-inorganic-phosphate-in-the-human-brain-at-7t
#14
Wybe J M van der Kemp, Dennis W J Klomp, Jannie P Wijnen
PURPOSE: To determine the phosphorus-31 T2 s of phosphomonoesters, phosphodiesters, and inorganic phosphate in the healthy human brain at 7T. METHODS: A 3D chemical shift imaging multi-echo sequence with composite block pulses for refocusing was used to measure one free induction decay (FID) and seven full echoes with an echo spacing of 45 ms on the brain of nine healthy volunteers (age range 22-45 years; average age 27 ± 8 years). Spectral fitting was used to determine the change in metabolic signal amplitude with echo time...
December 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29203059/increased-glutamate-glutamine-levels-in-the-thalamus-of-patients-with-essential-tremor-a-preliminary-proton-mr-spectroscopic-study
#15
Gaetano Barbagallo, Gennarina Arabia, Fabiana Novellino, Rita Nisticò, Maria Salsone, Maurizio Morelli, Federico Rocca, Andrea Quattrone, Manuela Caracciolo, Umberto Sabatini, Andrea Cherubini, Aldo Quattrone
INTRODUCTION: The aim of this study was to investigate the thalamic biochemical profile in patients with essential tremor (ET), using proton magnetic resonance spectroscopy (1 H-MRS), and to explore the correlations between clinical and biochemical data. METHODS: Sixteen patients with ET and 14 healthy controls participated in this study. After conventional MR imaging, single-voxel1 H-MRS (TR = 2000 ms; TE = 28 ms) was performed by using a PROBE-SV system implemented on a 3-T scanner...
February 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29200821/spectropathology-corroborated-multimodal-quantitative-imaging-biomarkers-for-neuroretinal-degeneration-in-diabetic-retinopathy
#16
Arpan Guha Mazumder, Swarnadip Chatterjee, Saunak Chatterjee, Juan Jose Gonzalez, Swarnendu Bag, Sambuddha Ghosh, Anirban Mukherjee, Jyotirmoy Chatterjee
Introduction: Image-based early detection for diabetic retinopathy (DR) needs value addition due to lack of well-defined disease-specific quantitative imaging biomarkers (QIBs) for neuroretinal degeneration and spectropathological information at the systemic level. Retinal neurodegeneration is an early event in the pathogenesis of DR. Therefore, development of an integrated assessment method for detecting neuroretinal degeneration using spectropathology and QIBs is necessary for the early diagnosis of DR...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29191459/impact-of-real-time-metabolomics-in-liver-transplantation-graft-evaluation-and-donor-recipient-matching
#17
Francois Faitot, Camille Besch, Stephanie Battini, Elisa Ruhland, Mihaela Onea, Pietro Addeo, Marie-Lorraine Woehl-Jaeglé, Bernard Ellero, Philippe Bachellier, Izzie-Jacques Namer
BACKGROUND & AIMS: There is an emerging need to assess the metabolic state of liver allografts especially in the novel setting of machine perfusion preservation and donor in cardiac death (DCD) grafts. High-resolution magic-angle-spinning nuclear magnetic resonance (HR-MAS-NMR) could be a useful tool in this setting as it can extemporaneously provide untargeted metabolic profiling. The purpose of this study was to evaluate the potential value of HR-MAS-NMR metabolomic analysis of back-table biopsies for the prediction of early allograft dysfunction (EAD) and donor-recipient matching...
December 2, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29191088/the-delaying-effect-of-alpha-glycerophosphocholine-on-senescence-transthyretin-deposition-and-osteoarthritis-in-senescence-accelerated-mouse-prone-8-mice
#18
Kiminori Matsubara, Mayumi Okuda, Sachi Shibata, Shigeru Miyaki, Takeshi Ohkubo, Hanae Izu, Tsutomu Fujii
Administration of alpha-glycerophosphocholine (GPC), a choline compound in food, is expected to contribute to human health. In this study, we evaluated its effect on aging in senescence-accelerated mouse prone 8 (SAMP8) mice. Male SAMP8 mice had free access to a commercial stock diet and drinking water with or without GPC (0.07 mg/ml). Mice in the GPC group had significantly lower total senescence grading score than that of the control group at 36 weeks of age. Administration of GPC decreased the deposition of transthyretin (TTR), an amyloidogenic protein, in the brain...
December 1, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29146344/lipid-profiles-in-different-parts-of-two-species-of-scallops-chlamys-farreri-and-patinopecten-yessoensis
#19
Xiao-Pei Hu, Qing-Da An, Da-Yong Zhou, Ting Lu, Fa-Wen Yin, Liang Song, Qi Zhao, Jiang-Hua Zhang, Lei Qin, Bei-Wei Zhu, Fereidoon Shahidi
Different classes of lipids and phospholipids (PL) as well as fatty acid (FA) compositions, and glycerophospholipid (GP) molecular species in edible parts (adductor muscles) and by-products (gonads and mantles) of scallops Patinopecten yessoensis and Chlamys farreri were characterized. The lipids contained high levels of polyunsaturated FA (PUFA) (20.44-58.81% of total FAs) and PL (54.99-78.26% of total lipids). Among PL, phosphatidylcholine (41.39-51.86 mol%) was dominant. More than 230 GP species belonging to glycerophosphocholine, glycerophosphoethanolamine, glycerophosphoserine, glycerophosphoinositol, lysoglycerophosphocholine, lysoglycerophosphoethanolamine and lysoglycerophosphoinositol were characterized...
March 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29103689/a-metabolomic-investigation-into-the-effects-of-temperature-on-streptococcus-agalactiae-from-nile-tilapia-oreochromis-niloticus-based-on-uplc-ms-ms
#20
Wen-Ting Hu, Wei-Liang Guo, Ai-Yun Meng, Yun Sun, Shi-Feng Wang, Zhen-Yu Xie, Yong-Can Zhou, Chaozu He
Streptococcosis caused by Streptococcus agalactiae is one of the most serious diseases in farmed tilapia, and temperature is one of the most important environmental factors related to its outbreak. To elucidate the influence of temperature variation on the pathogen from a metabolic perspective, the global metabolomics of 2 pathogenic strains of S. agalactiae from sick tilapia were analyzed at 35°C and 25°C using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) combined with pattern recognition approaches and pathway analysis...
October 2017: Veterinary Microbiology
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