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Glycerophosphocholine

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https://www.readbyqxmd.com/read/28069796/high-dietary-folate-in-pregnant-mice-leads-to-pseudo-mthfr-deficiency-and-altered-methyl-metabolism-with-embryonic-growth-delay-and-short-term-memory-impairment-in-offspring
#1
Renata H Bahous, Nafisa M Jadavji, Liyuan Deng, Marta Cosín-Tomás, Jessica Lu, Olga Malysheva, Kit-Yi Leung, Ming-Kai Ho, Mercè Pallàs, Perla Kaliman, Nicholas DE Greene, Barry J Bedell, Marie A Caudill, Rima Rozen
Methylenetetrahydrofolate reductase (MTHFR) generates methyltetrahydrofolate for methylation reactions. Severe MTHFR deficiency results in homocystinuria and neurologic impairment. Mild MTHFR deficiency (677C>T polymorphism) increases risk for complex traits, including neuropsychiatric disorders. Although low dietary folate impacts brain development, recent concerns have focused on high folate intake following food fortification and increased vitamin use. Our goal was to determine whether high dietary folate during pregnancy affects brain development in murine offspring...
January 9, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28050958/non-invasive-prediction-of-blastocyst-implantation-ongoing-pregnancy-and-live-birth-by-mass-spectrometry-lipid-fingerprinting
#2
Edson Borges, Daniela P A F Braga, Amanda Souza Setti, Daniela A Montanni, Elaine Cristina Cabral, Marcos N Eberlin, Edson G Lo Turco, Assumpto Iaconelli
OBJECTIVE: To identify lipid markers of blastocyst implantation and ongoing pregnancy by day three culture medium mass spectrometry (MS) fingerprinting. METHODS: For this study, 33 culture media samples were harvested on day three, from 22 patients undergoing day five embryo transfers. All embryos achieved the blastocyst stage and were split into groups based on their implantation (Negative Implantation, n= 14 and Positive Implantation, n= 19). The positive implantation cycles resulted in successful ongoing pregnancies...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28032377/proton-and-phosphorus-magnetic-resonance-spectroscopy-of-the-healthy-human-breast-at-7%C3%A2-t
#3
Wybe J M van der Kemp, Bertine L Stehouwer, Vincent O Boer, Peter R Luijten, Dennis W J Klomp, Jannie P Wijnen
In vivo water- and fat-suppressed (1) H magnetic resonance spectroscopy (MRS) and (31) P magnetic resonance adiabatic multi-echo spectroscopic imaging were performed at 7 T in duplicate in healthy fibroglandular breast tissue of a group of eight volunteers. The transverse relaxation times of (31) P metabolites were determined, and the reproducibility of (1) H and (31) P MRS was investigated. The transverse relaxation times for phosphoethanolamine (PE) and phosphocholine (PC) were fitted bi-exponentially, with an added short T2 component of 20 ms for adenosine monophosphate, resulting in values of 199 ± 8 and 239 ± 14 ms, respectively...
December 28, 2016: NMR in Biomedicine
https://www.readbyqxmd.com/read/27917121/neurochemical-and-neuroanatomical-plasticity-following-memory-training-and-yoga-interventions-in-older-adults-with-mild-cognitive-impairment
#4
Hongyu Yang, Amber M Leaver, Prabha Siddarth, Pattharee Paholpak, Linda Ercoli, Natalie M St Cyr, Harris A Eyre, Katherine L Narr, Dharma S Khalsa, Helen Lavretsky
Behavioral interventions are becoming increasingly popular approaches to ameliorate age-related cognitive decline, but their underlying neurobiological mechanisms and clinical efficiency have not been fully elucidated. The present study explored brain plasticity associated with two behavioral interventions, memory enhancement training (MET) and a mind-body practice (yogic meditation), in healthy seniors with mild cognitive impairment (MCI) using structural magnetic resonance imaging (s-MRI) and proton magnetic resonance spectroscopy ((1)H-MRS)...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27883027/disturbed-phospholipid-homeostasis-in-endoplasmic-reticulum-initiates-tri-o-cresyl-phosphate-induced-delayed-neurotoxicity
#5
Li Zhu, Pan Wang, Ying-Jian Sun, Ming-Yuan Xu, Yi-Jun Wu
Tri-o-cresyl phosphate (TOCP) is a widely used organophosphorus compound, which can cause a neurodegenerative disorder, i.e., organophosphate-induced delayed neurotoxicity (OPIDN). The biochemical events in the initiation of OPIDN were not fully understood except for the essential inhibition of neuropathy target esterase (NTE). NTE, located in endoplasmic reticulum (ER), catalyzes the deacylation of phosphatidylcholine (PC) and lysophosphatidylcholine (LPC) to glycerophosphocholine (GPC). The present study aims to study the changes of ER phospholipids profile as well as levels of important intermediates of phospholipid synthesis such as diacylglycerol (DAG) and phosphatidic acid (PA) at the initiation stage of OPIDN...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27870506/differential-neurometabolite-alterations-in-brains-of-medication-free-individuals-with-bipolar-disorder-and-those-with-unipolar-depression-a-two-dimensional-proton-magnetic-resonance-spectroscopy-study
#6
Hui Li, Haiyun Xu, Yinnan Zhang, Jitian Guan, Jie Zhang, Chongtao Xu, Zhiwei Shen, Bo Xiao, Chunlian Liang, Kaiyuan Chen, Jinling Zhang, Renhua Wu
OBJECTIVES: Bipolar disorder (BD) is a mental disorder characterized by periods of elevated mood and depression. Many individuals with BD are initially misdiagnosed and treated for unipolar depression (UD). In this study, we report direct comparisons between medication-free individuals with BD and those with UD in terms of the neurometabolites in the anterior cingulate cortex (ACC), medial prefrontal cortex (mPFC), parietal cortex (PC), and posterior cingulate cortex (PCC) of the brain...
November 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27814529/advances-in-understanding-the-mechanisms-of-mercury-toxicity-in%C3%A2-wild-golden-grey-mullet-liza-aurata-by-1-h-nmr-based-metabolomics
#7
Tiziana Cappello, Patrícia Pereira, Maria Maisano, Angela Mauceri, Mário Pacheco, Salvatore Fasulo
Mercury (Hg) is recognized as a dangerous contaminant due to its bioaccumulation and biomagnification within trophic levels, leading to serious health risks to aquatic biota. Therefore, there is an urgent need to unravel the mechanisms underlying the toxicity of Hg. To this aim, a metabolomics approach based on protonic nuclear magnetic resonance ((1)H NMR), coupled with chemometrics, was performed on the gills of wild golden grey mullets L. aurata living in an Hg-polluted area in Ria de Aveiro (Portugal)...
December 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27771079/choline-absorption-and-evaluation-of-bioavailability-markers-when-supplementing-choline-to-lactating-dairy-cows
#8
M J de Veth, V M Artegoitia, S R Campagna, H Lapierre, F Harte, C L Girard
The metabolites of choline have a central role in many mammalian biological processes, and choline supplementation to the periparturient dairy cow improves hepatic lipid metabolism. However, variability in responses to choline supplementation has highlighted a lack of understanding of choline absorption in the lactating dairy cow. Our objective was to determine net choline absorption by measuring net portal fluxes of choline and choline metabolites in cows receiving either dietary supplements of rumen-protected choline (RPC) or abomasal delivery of choline (ADC)...
October 19, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27765247/characterization-of-glycerophospholipid-molecular-species-in-six-species-of-edible-clams-by-high-performance-liquid-chromatography-electrospray-ionization-tandem-mass-spectrometry
#9
Zhong-Yuan Liu, Da-Yong Zhou, Qi Zhao, Fa-Wen Yin, Xiao-Pei Hu, Liang Song, Lei Qin, Jian-Run Zhang, Bei-Wei Zhu, Fereidoon Shahidi
The molecular species of glycerophosphocholine (GPCho), glycerophosphoethanolamine (GPEtn), glycerophosphoserine (GPSer), lysoglycerophosphocholine (LGPCho) and lysoglycerophosphoethanolamine (LGPEtn) from six species of edible clams were characterized by using high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry. At least 435, 453, 468, 443, 427 and 444 glycerophospholipid (GP) molecular species were characterized, respectively, from Cyclina sinensis, Mactra chinensis Philippi, Mactra veneriformis Reeve, Meretrix meretrix, Ruditapes philippinarum and Saxidomus purpurata...
March 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27758859/cloning-of-glycerophosphocholine-acyltransferase-gpcat-from-fungi-and-plants-a-novel-enzyme-in-phosphatidylcholine-synthesis
#10
Bartosz Głąb, Mirela Beganovic, Sanket Anaokar, Meng-Shu Hao, Allan G Rasmusson, Jana Patton-Vogt, Antoni Banaś, Sten Stymne, Ida Lager
Glycero-3-phosphocholine (GPC), the product of the complete deacylation of phosphatidylcholine (PC), was long thought to not be a substrate for reacylation. However, it was recently shown that cell-free extracts from yeast and plants could acylate GPC with acyl groups from acyl-CoA. By screening enzyme activities of extracts derived from a yeast knock-out collection, we were able to identify and clone the yeast gene (GPC1) encoding the enzyme, named glycerophosphocholine acyltransferase (GPCAT). By homology search, we also identified and cloned GPCAT genes from three plant species...
November 25, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27756781/glycerophosphocholine-metabolites-and-cardiovascular-disease-risk-factors-in-adolescents-a-cohort-study
#11
Catriona Syme, Simon Czajkowski, Jean Shin, Michal Abrahamowicz, Gabriel Leonard, Michel Perron, Louis Richer, Suzanne Veillette, Daniel Gaudet, Lisa Strug, Yun Wang, Hongbin Xu, Graeme Taylor, Tomas Paus, Steffany Bennett, Zdenka Pausova
BACKGROUND: Glycerophosphocholine (GPC) metabolites modulate atherosclerosis and thus risk for cardiovascular disease (CVD). Preclinical CVD may start during adolescence. Here, we used targeted serum lipidomics to identify a new panel of GPCs, and tested whether any of these GPCs are associated, in adolescence, with classical risk factors of CVD, namely excess visceral fat (VF), elevated blood pressure, insulin resistance, and atherogenic dyslipidemia. METHODS: We studied a population-based sample of 990 adolescents (12-18 years, 48% male), as part of the Saguenay Youth Study...
November 22, 2016: Circulation
https://www.readbyqxmd.com/read/27742491/altered-breast-milk-components-in-preeclampsia-an-in-vitro-proton-nmr-spectroscopy-study
#12
Kamini Dangat, Deepti Upadhyay, Anitha Kilari, Uma Sharma, Nisha Kemse, Savita Mehendale, Sanjay Lalwani, Girija Wagh, Sadhana Joshi, Naranamangalam R Jagannathan
OBJECTIVE: To investigate the metabolic profile of milk on day 3 and at the 6th month of lactation in mothers with preeclampsia (PE) and normotensive mothers. STUDY DESIGN: Women with PE (n=29) and control women (n=31) were recruited for this study. Milk was collected on day 3 and at the 6th month of lactation. Proton NMR spectroscopy was used to identify 25 milk metabolites (alpha-lactose, beta-lactose, oligosaccharides, myo-inositol, alanine, glutamate, glutamine, glycine, histidine, isoleucine, leucine, lysine, phenylalanine, tyrosine, valine, acetone, citrate, creatine, phosphocreatine, acetate, choline, lactate, lipid, phosphocholine and glycerophosphocholine)...
December 1, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27672632/comparison-of-brain-development-in-sow-reared-and-artificially-reared-piglets
#13
Reeba M Jacob, Austin T Mudd, Lindsey S Alexander, Chron-Si Lai, Ryan N Dilger
INTRODUCTION: Provision of adequate nutrients is critical for proper growth and development of the neonate, yet the impact of breastfeeding versus formula feeding on neural maturation has to be fully determined. Using the piglet as a model for the human infant, our objective was to compare neurodevelopment of piglets that were either sow-reared (SR) or artificially reared (AR) in an artificial setting. METHODS: Over a 25-day feeding study, piglets (1.5 ± 0...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27662572/trait-related-alterations-of-n-acetylaspartate-in-euthymic-bipolar-patients-a-longitudinal-proton-magnetic-resonance-spectroscopy-study
#14
Burç Aydin, Ayşegül Yurt, Necati Gökmen, Perry Renshaw, David Olson, Ayşegül Yildiz
BACKGROUND: Neurochemical changes are responsible for bipolar disorder (BD) pathophysiology. Despite current progress in BD research, mood- and trait-related alterations in BD continue to elicit further investigation. METHODS: In this study, we report a longitudinal proton magnetic resonance spectroscopy study evaluating dorsomedial prefrontal cortex (DMPFC) metabolites N-acetylaspartate (NAA), creatine plus phosphocreatine (total creatine [tCr]), phosphorylcholine plus glycerophosphocholine, myo-inositol, and glutamate plus glutamine levels of manic and euthymic adult BD type I patients (n=48) treated with standard antimanic medicines, compared to matching healthy controls (n=44)...
December 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27659543/non-invasive-detection-of-2-hydroxyglutarate-in-idh-mutated-gliomas-using-two-dimensional-localized-correlation-spectroscopy-2d-l-cosy-at-7-tesla
#15
Gaurav Verma, Suyash Mohan, MacLean P Nasrallah, Steven Brem, John Y K Lee, Sanjeev Chawla, Sumei Wang, Rajakumar Nagarajan, M Albert Thomas, Harish Poptani
BACKGROUND: Mutations in the isocitrate dehydrogenase enzyme are present in a majority of lower-grade gliomas and secondary glioblastomas. This mis-sense mutation results in the neomorphic reduction of isocitrate dehydrogenase resulting in an accumulation of the "oncometabolite" 2-hydroxyglutarate (2HG). Detection of 2HG can thus serve as a surrogate biomarker for these mutations, with significant translational implications including improved prognostication. Two dimensional localized correlated spectroscopy (2D L-COSY) at 7T is a highly-sensitive non-invasive technique for assessing brain metabolism...
September 22, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27618287/bioactive-4-oxoheptanedioic-monoamide-derivatives-of-proteins-and-ethanolaminephospholipids-products-of-docosahexaenoate-oxidation
#16
Junhong Guo, Li Hong, Xiaoxia Z West, Hua Wang, Robert G Salomon
Oxidative stress causes lipid-derived oxidative modification of biomolecules that has been implicated in many pathological states. Phospholipids containing polyunsaturated fatty acids are major targets of free radical-initiated oxidation. Phospholipids that incorporate docosahexaenoate (DHA) are highly enriched in important neural structures including the brain and retina, where DHA comprises 40% and 60% of total fatty acids, respectively. Oxidative fragmentation of 2-docosahexaenoyl-1-palmityl-sn-glycerophosphocholine generates esters of 4-hydroxy-7-oxohept-5-enoic acid (HOHA) and 4-keto-7-oxohept-5-enoic acid (KOHA) with 2-lysophosphatidylcholine, HOHA-PC, and KOHA-PC...
October 17, 2016: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/27592308/identification-analysis-and-interpretation-of-a-human-serum-metabolomics-causal-network-in-an-observational-study
#17
Azam Yazdani, Akram Yazdani, Ahmad Samiei, Eric Boerwinkle
Untargeted metabolomics, measurement of large numbers of metabolites irrespective of their chemical or biologic characteristics, has proven useful for identifying novel biomarkers of health and disease. Of particular importance is the analysis of networks of metabolites, as opposed to the level of an individual metabolite. The aim of this study is to achieve causal inference among serum metabolites in an observational setting. A metabolomics causal network is identified using the genome granularity directed acyclic graph (GDAG) algorithm where information across the genome in a deeper level of granularity is extracted to create strong instrumental variables and identify causal relationships among metabolites in an upper level of granularity...
August 31, 2016: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/27577538/metabolic-profiling-in-kidneys-of-atlantic-salmon-infected-with-aeromonas-salmonicida-based-on-1-h-nmr
#18
Peng-Fei Liu, Yishuai Du, Lingjie Meng, Xian Li, Ying Liu
Aeromonas salmonicida, an important pathogenic bacterium which induces furunculosis, is globally causing increased risks in Atlantic salmon (Salmo salar) farming. Although the kidney is the main target organ of A. salmonicida, the metabolic profiling of kidney in response to A. salmonicida in vivo remains unknown. Here, we used (1)H nuclear magnetic resonance (NMR) to comprehensively analyze the metabolic changes in the kidney of Atlantic salmon. Through the NOESYPR1D spectrum combined with multi-variate pattern recognition analysis, including principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) models, significant metabolic changes were observed seven and 14 days post-infection and in a control group...
November 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27562503/enhanced-lipidome-coverage-in-shotgun-analyses-by-using-gas-phase-fractionation
#19
Milad Nazari, David C Muddiman
A high resolving power shotgun lipidomics strategy using gas-phase fractionation and data-dependent acquisition (DDA) was applied toward comprehensive characterization of lipids in a hen ovarian tissue in an untargeted fashion. Using this approach, a total of 822 unique lipids across a diverse range of lipid categories and classes were identified based on their MS/MS fragmentation patterns. Classes of glycerophospholipids and glycerolipids, such as glycerophosphocholines (PC), glycerophosphoethanolamines (PE), and triglycerides (TG), are often the most abundant peaks observed in shotgun lipidomics analyses...
November 2016: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27560924/expression-of-cell-surface-marker-abcb5-causes-characteristic-modifications-of-glucose-amino-acid-and-phospholipid-metabolism-in-the-g3361-melanoma-initiating-cell-line
#20
Norbert W Lutz, Pallavi Banerjee, Brian J Wilson, Jie Ma, Patrick J Cozzone, Markus H Frank
We present a pilot study aimed at determining the effects of expression of ATP-binding cassette member B5 (ABCB5), a previously described marker for melanoma-initiating cells, on cellular metabolism. Metabolic profiles for two groups of human G3361 melanoma cells were compared, i.e. wildtype melanoma cells with intact ABCB5 expression (ABCB5-WT) and corresponding melanoma cell variants with inhibited ABCB5 expression, through shRNA-mediated gene knockdown (ABCB5-KD). A comprehensive metabolomic analysis was performed by using proton and phosphorus NMR spectroscopy of cell extracts to examine water-soluble metabolites and lipids...
2016: PloS One
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