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Journal articles on the topic 'Choline-containing phospholipids'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Smolders, Lotte, Nicole J. W. de Wit, Michiel G. J. Balvers, Rima Obeid, Marc M. M. Vissers, and Diederik Esser. "Natural Choline from Egg Yolk Phospholipids Is More Efficiently Absorbed Compared with Choline Bitartrate; Outcomes of A Randomized Trial in Healthy Adults." Nutrients 11, no. 11 (2019): 2758. http://dx.doi.org/10.3390/nu11112758.

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Choline is a vitamin-like essential nutrient, important throughout one’s lifespan. Therefore, choline salts are added to infant formula, supplements and functional foods. However, if choline is present in a natural form, e.g. bound to phospholipids, it may be more efficiently absorbed. The study’s aim was to evaluate if choline uptake is improved after consumption of an egg yolk phospholipid drink, containing 3 g of phospholipid bound choline, compared to a control drink with 3 g of choline bitartrate. We performed a randomized, double blind, cross-over trial with 18 participants. Plasma choli

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Beavis, Janine, John L. Harwood, Gerald A. Coles, and John D. Williams. "Synthesis of Phospholipids by Human Peritoneal Mesothelial Cells." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 14, no. 4 (1994): 348–55. http://dx.doi.org/10.1177/089686089401400407.

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Objective To assess the capacity of cultured human peritoneal mesothelial cells to synthesize choline-containing phospholipids. The study compares the phospholipids secreted from cultured cells with those which we, and others, have identified in the dialysate of patients treated by continuous ambulatory peritoneal dialysis (CAPD). Patients CAPD effluent was collected from 8 patients who had been receiving CAPD treatment for at least 11 months and who had normal ultrafiltration. Cell Cultures Using human omental tissue, homogeneous cultures of mesothelial cells were established. Methods Synthes

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Banerji, Benoy, and Carl R. Alving. "Antibodies to liposomal phosphatidylserine and phosphatidic acid." Biochemistry and Cell Biology 68, no. 1 (1990): 96–101. http://dx.doi.org/10.1139/o90-012.

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Polyclonal antisera to phosphatidylserine or phosphatidic acid were induced in rabbits by injecting liposomes containing phosphatidylserine or phosphatidic acid and lipid A. Adsorption of antisera with liposomes containing different phospholipids revealed that some degree of reactivity with one or more phospholipids other than the immunizing phospholipid was often observed. However, cross-reactivity with other phospholipids was not a universal phenomenon, and one antiserum to phosphatidylserine failed to cross-react (i.e., was not adsorbed) with liposomes containing other phospholipids. All of

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4

Gil-de-Gómez, Luis, Patricia Monge, Juan P. Rodríguez, Alma M. Astudillo, María A. Balboa, and Jesús Balsinde. "Phospholipid Arachidonic Acid Remodeling During Phagocytosis in Mouse Peritoneal Macrophages." Biomedicines 8, no. 8 (2020): 274. http://dx.doi.org/10.3390/biomedicines8080274.

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Macrophages contain large amounts of arachidonic acid (AA), which distributes differentially across membrane phospholipids. This is largely due to the action of coenzyme A-independent transacylase (CoA-IT), which transfers the AA primarily from diacyl choline-containing phospholipids to ethanolamine-containing phospholipids. In this work we have comparatively analyzed glycerophospholipid changes leading to AA mobilization in mouse peritoneal macrophages responding to either zymosan or serum-opsonized zymosan (OpZ). These two phagocytic stimuli promote the cytosolic phospholipase A2-dependent m

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5

Tomàs, Salvador, Rafel Prohens, Ghislain Deslongchamps, Pablo Ballester, and Antoni Costa. "An Effective Fluorescent Sensor for Choline-Containing Phospholipids." Angewandte Chemie International Edition 38, no. 15 (1999): 2208–11. http://dx.doi.org/10.1002/(sici)1521-3773(19990802)38:15<2208::aid-anie2208>3.0.co;2-9.

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6

Baptiste, Keith E., and Max H. Cake. "Lipid Analysis of Lavage Samples from the Equine Guttural Pouch (Auditory Tube Diverticulum)." Annals of Otology, Rhinology & Laryngology 103, no. 5 (1994): 383–88. http://dx.doi.org/10.1177/000348949410300508.

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The guttural pouch is a large, air-filled diverticulum of the auditory tube, present in the horse and other species. Lipid analysis of saline lavage from the equine guttural pouch has demonstrated the presence of phospholipids and neutral lipids in amounts that are variable but consistently greater than in any other species described. A stain specific for choline-containing phospholipids has demonstrated the presence of phospholipid-containing vesicles only within the cells of subepithelial, seromucoidlike glands, suggesting that these cells incorporate phospholipids in their secretions. The f

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7

Vance, J. E., D. Pan, D. E. Vance, and R. B. Campenot. "Biosynthesis of membrane lipids in rat axons." Journal of Cell Biology 115, no. 4 (1991): 1061–68. http://dx.doi.org/10.1083/jcb.115.4.1061.

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Compartmented cultures of sympathetic neurons from newborn rats were employed to test the hypothesis that the lipids required for maintenance and growth of axonal membranes must be synthesized in the cell body and transported to the axons. In compartmented cultures the distal axons grow into a compartment separate from that containing the cell bodies and proximal axons, in an environment free from other contaminating cells such as glial cells and fibroblasts. There is virtually no bulk flow of culture medium or small molecules between the cell body and axonal compartments. When [methyl-3H]chol

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8

Tayebati, S. K., G. Marucci, C. Santinelli, M. Buccioni, and F. Amenta. "Choline-Containing Phospholipids: Structure-Activity Relationships Versus Therapeutic Applications." Current Medicinal Chemistry 22, no. 38 (2015): 4328–40. http://dx.doi.org/10.2174/0929867322666151029104152.

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9

Dhand, Rajiv, Jared Young, Andelle Teng, Subbiah Krishnasamy, and Nicholas J. Gross. "Is dipalmitoylphosphatidylcholine a substrate for convertase?" American Journal of Physiology-Lung Cellular and Molecular Physiology 278, no. 1 (2000): L19—L24. http://dx.doi.org/10.1152/ajplung.2000.278.1.l19.

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Convertase has homology with carboxylesterases, but its substrate(s) is not known. Accordingly, we determined whether dipalmitoylphosphatidylcholine (DPPC), the major phospholipid in surfactant, was a substrate for convertase. We measured [3H]choline release during cycling of the heavy subtype containing [3H]choline-labeled DPPC with convertase, phospholipases A2, B, C, and D, liver esterase, and elastase. Cycling with liver esterase or peanut or cabbage phospholipase D produced the characteristic profile of heavy and light peaks observed on cycling with convertase. In contrast, phospholipases

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10

Tadolini, B. "Polyamine inhibition of lipoperoxidation. The influence of polyamines on iron oxidation in the presence of compounds mimicking phospholipid polar heads." Biochemical Journal 249, no. 1 (1988): 33–36. http://dx.doi.org/10.1042/bj2490033.

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Polyamines appear to inhibit peroxidation of vesicles containing acidic phospholipids. A correlation exists between polyamine binding to phospholipid vesicles and its protective effect. However, phosphatidylinositol-containing vesicles which bind spermine are not protected by the polyamine [Tadolini, Cabrini, Landi, Varani & Pasquali (1985) Biogenic Amines 3, 97-106]. In the present paper I tested the hypothesis that polyamines, in particular spermine, by forming a ternary complex with iron and the phospholipid polar head may change the susceptibility of Fe2+ to autoxidation and thus its a

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11

Comerci, Diego J., Silvia Altabe, Diego de Mendoza, and Rodolfo A. Ugalde. "Brucella abortus Synthesizes Phosphatidylcholine from Choline Provided by the Host." Journal of Bacteriology 188, no. 5 (2006): 1929–34. http://dx.doi.org/10.1128/jb.188.5.1929-1934.2006.

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ABSTRACT The Brucella cell envelope is characterized by the presence of phosphatidylcholine (PC), a common phospholipid in eukaryotes that is rare in prokaryotes. Studies on the composition of Brucella abortus 2308 phospholipids revealed that the synthesis of PC depends on the presence of choline in the culture medium, suggesting that the methylation biosynthetic pathway is not functional. Phospholipid composition of pmtA and pcs mutants indicated that in Brucella, PC synthesis occurs exclusively via the phosphatidylcholine synthase pathway. Transformation of Escherichia coli with an expressio

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12

Khan, Sultan M., Tariq M. Khan, Richard D. Wells, David J. Maslin, and Martin J. Connock. "A sensitive enzyme-based colorimetric assay for choline-containing phospholipids." Journal of the Science of Food and Agriculture 58, no. 3 (1992): 443–45. http://dx.doi.org/10.1002/jsfa.2740580322.

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13

Li, Song, Bin Guo, Jianwen Song, et al. "Plasma choline-containing phospholipids: potential biomarkers for colorectal cancer progression." Metabolomics 9, no. 1 (2012): 202–12. http://dx.doi.org/10.1007/s11306-012-0439-z.

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14

Dawson, R. M. C., N. Hemington, and R. F. Irvine. "The inhibition of diacylglycerol-stimulated intracellular phospholipases by phospholipids with a phosphocholine-containing polar group. A possible physiological role for sphingomyelin." Biochemical Journal 230, no. 1 (1985): 61–68. http://dx.doi.org/10.1042/bj2300061.

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Phosphatidylinositol phosphodiesterase activated by diacylglycerol is substantially inhibited by all phospholipids containing a phosphocholine head group, including phosphatidylcholine, hydrogenated phosphatidylcholine, choline plasmalogen, lysophosphatidylcholine, lysocholine plasmalogen, sphingomyelin and sphingosylphosphocholine. The sphingosine-containing phospholipids are the most inhibitory. Phosphatidic acid does not inhibit, and phosphatidylethanolamine activates the hydrolysis still further. Sphingomyelin is highly inhibitory to a diacylglycerol-stimulated intestinal mucosal phospholi

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15

Gordon, Philip R., Liebe K. Gelman, and Barbara A. Gilchrest. "Demonstration of a Choline Requirement for Optimal Keratinocyte Growth in a Defined Culture Medium." Journal of Nutrition 118, no. 12 (1988): 1487–94. http://dx.doi.org/10.1093/jn/118.12.1487.

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Abstract Nutrient requirements for proliferation and differentiated function of individual cell types can be determined using cell culture methodologies. Human epidermal keratinocytes are stimulated to grow by choline supplementation in the presence of myo-inositol when grown in a commercial nutrient medium containing six other defined supplements. The optimal range of choline concentrations varied among donor cell lines, but consistently fell between 36 µM and 180 µM. Addition of 72 µM choline increased cell yield to 250 ± 38% of that produced by myo-inositol supplementation alone and 92 ± 8%

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16

Khosrow Tayebati, Seyed, Daniele Tomassoni, Innocent Ejike Nwankwo, et al. "Modulation of Monoaminergic Transporters by Choline-Containing Phospholipids in Rat Brain." CNS & Neurological Disorders - Drug Targets 12, no. 1 (2013): 94–103. http://dx.doi.org/10.2174/1871527311312010015.

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17

Hernandez, Gabriella V., Victoria A. Smith, Megan Melnyk, et al. "Dysregulated FXR-FGF19 signaling and choline metabolism are associated with gut dysbiosis and hyperplasia in a novel pig model of pediatric NASH." American Journal of Physiology-Gastrointestinal and Liver Physiology 318, no. 3 (2020): G582—G609. http://dx.doi.org/10.1152/ajpgi.00344.2019.

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To investigate the role of bile acids (BAs) in the pathogenesis of diet-induced nonalcoholic steatohepatitis (NASH), we fed a “Western-style diet” [high fructose, high fat (HFF)] enriched with fructose, cholesterol, and saturated fat for 10 wk to juvenile Iberian pigs. We also supplemented probiotics with in vitro BA deconjugating activity to evaluate their potential therapeutic effect in NASH. Liver lipid and function, cytokines, and hormones were analyzed using commercially available kits. Metabolites, BAs, and fatty acids were measured by liquid chromatography-mass spectrometry. Histology a

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18

Hirsch, J. P., and S. A. Henry. "Expression of the Saccharomyces cerevisiae inositol-1-phosphate synthase (INO1) gene is regulated by factors that affect phospholipid synthesis." Molecular and Cellular Biology 6, no. 10 (1986): 3320–28. http://dx.doi.org/10.1128/mcb.6.10.3320.

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The INO1 gene of Saccharomyces cerevisiae encodes the regulated enzyme inositol-1-phosphate synthase, which catalyzes the first committed step in the synthesis of inositol-containing phospholipids. The expression of this gene was analyzed under conditions known to regulate phospholipid synthesis. RNA blot hybridization with a genomic clone for INO1 detected two RNA species of 1.8 and 0.6 kb. The abundance of the 1.8-kb RNA was greatly decreased when the cells were grown in the presence of the phospholipid precursor inositol, as was the enzyme activity of the synthase. Complementation analysis

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Hirsch, J. P., and S. A. Henry. "Expression of the Saccharomyces cerevisiae inositol-1-phosphate synthase (INO1) gene is regulated by factors that affect phospholipid synthesis." Molecular and Cellular Biology 6, no. 10 (1986): 3320–28. http://dx.doi.org/10.1128/mcb.6.10.3320-3328.1986.

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The INO1 gene of Saccharomyces cerevisiae encodes the regulated enzyme inositol-1-phosphate synthase, which catalyzes the first committed step in the synthesis of inositol-containing phospholipids. The expression of this gene was analyzed under conditions known to regulate phospholipid synthesis. RNA blot hybridization with a genomic clone for INO1 detected two RNA species of 1.8 and 0.6 kb. The abundance of the 1.8-kb RNA was greatly decreased when the cells were grown in the presence of the phospholipid precursor inositol, as was the enzyme activity of the synthase. Complementation analysis

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20

ENGELMANN, Bernd, Christine KÖGL, Robert KULSCHAR, and Barbara SCHAIPP. "Transfer of phosphatidylcholine, phosphatidylethanolamine and sphingomyelin from low- and high-density lipoprotein to human platelets." Biochemical Journal 315, no. 3 (1996): 781–89. http://dx.doi.org/10.1042/bj3150781.

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Following a 1 h incubation of human platelets with low-density lipoprotein (LDL) labelled in the apoprotein fraction (125I-apoB) or in phospholipid fractions [14C-labelled phosphatidylcholine (PC), phosphatidylethanolamine (PE) or sphingomyelin (SM)], the percentage of total 14C associated with the cells was about 3-fold higher than the percentage of 125I. Differences in temperature sensitivity also indicated differential interactions of phospholipids and apoprotein with platelets. In order to assess the amount of [14C]phospholipid transferred from LDL or high-density lipoprotein (HDL) to the

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21

Keelan, M., K. Walker, R. Rajotte, T. Clandinin, and A. B. R. Thomson. "Diets alter jejunal morphology and brush border membrane composition in streptozotocin-diabetic rats." Canadian Journal of Physiology and Pharmacology 65, no. 2 (1987): 210–18. http://dx.doi.org/10.1139/y87-038.

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Previous studies have demonstrated enhanced active and passive uptake of many nutrients in animals with experimental diabetes. These changes in absorption cannot be explained by differences in intestinal morphology, although the brush border membrance (BBM) phospholipids do change in diabetes. Manipulation of diet produces alterations in intestinal uptake of lipids and glucose. This study was undertaken to determine the effect of diet and diabetes on jejunal morphology and BBM lipid composition. Rats were rendered hyperglycemic with streptozotocin and were fed for 2 weeks on a diet that was hi

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22

ZLATKINE, Philippe, Christine LEROY, Gert MOLL, and Christian LE GRIMELLEC. "Tight connection between choline transport and phosphatidylcholine synthesis in MDCK cells." Biochemical Journal 315, no. 3 (1996): 983–87. http://dx.doi.org/10.1042/bj3150983.

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In MDCK cells, choline uptake, the first step in the CDP-choline pathway for the biosynthesis of choline-containing phospholipids and osmolytes, occurs via both a transport system highly specific for choline and a non-specific pathway. The specific choline carrier is present at the apical domain of cells grown on dishes and is sodium-independent. Growing the cells on a permeant support results in the preferential localization of the specific choline carrier at the basolateral domain. To characterize the relationships between the choline uptake sites and the synthesis of phosphatidylcholine, MD

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23

Göpel, Christoph, Martin H. Schmidt, Marianne Campanini, and Jochen Klein. "Breakdown of choline-containing phospholipids in rat brain during severe weight loss." Neuroscience Letters 326, no. 1 (2002): 21–24. http://dx.doi.org/10.1016/s0304-3940(02)00304-x.

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24

Marazuela, M. D., and M. C. Moreno-Bondi. "Determination of choline-containing phospholipids in serum with a fiber-optic biosensor." Analytica Chimica Acta 374, no. 1 (1998): 19–29. http://dx.doi.org/10.1016/s0003-2670(98)00413-9.

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25

Tayebati, Seyed Khosrow, Daniele Tomassoni, Antonio Di Stefano, Piera Sozio, Laura Serafina Cerasa, and Francesco Amenta. "Effect of choline-containing phospholipids on brain cholinergic transporters in the rat." Journal of the Neurological Sciences 302, no. 1-2 (2011): 49–57. http://dx.doi.org/10.1016/j.jns.2010.11.028.

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26

MATSUBARA, Chiyo, Kuniaki ISHII, and Kiyoko TAKAMURA. "Flow Injection Analysis for Determination of Choline-Containing Phospholipids by Luminol Chemiluminescence." YAKUGAKU ZASSHI 112, no. 1 (1992): 50–55. http://dx.doi.org/10.1248/yakushi1947.112.1_50.

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27

Klein, J. "Membrane breakdown in acute and chronic neurodegeneration: focus on choline-containing phospholipids." Journal of Neural Transmission 107, no. 8-9 (2000): 1027–63. http://dx.doi.org/10.1007/s007020070051.

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HENNEBERRY, Annette L., and Christopher R. McMASTER. "Cloning and expression of a human choline/ethanolaminephosphotransferase: synthesis of phosphatidylcholine and phosphatidylethanolamine." Biochemical Journal 339, no. 2 (1999): 291–98. http://dx.doi.org/10.1042/bj3390291.

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Cholinephosphotransferase catalyses the final step in the synthesis of phosphatidylcholine (PtdCho) via the Kennedy pathway by the transfer of phosphocholine from CDP-choline to diacylglycerol. Ethanolaminephosphotransferase catalyses an analogous reaction with CDP-ethanolamine as the phosphobase donor for the synthesis of phosphatidylethanolamine (PtdEtn). Together these two enzyme activities determine both the site of synthesis and the fatty acyl composition of PtdCho and PtdEtn synthesized de novo. A human choline/ethanolaminephosphotransferase cDNA (hCEPT1) was cloned, expressed and charac

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Wecker, Lynn. "Neurochemical effects of choline supplementation." Canadian Journal of Physiology and Pharmacology 64, no. 3 (1986): 329–33. http://dx.doi.org/10.1139/y86-054.

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Whether or not the brain can use supplemental choline to enhance the synthesis of acetylcholine (ACh) is an important consideration for assessing the merits of using choline or phosphatidylcholine (lecithin) for the treatment of neuropsychiatric disorders postulated to involve hypocholinergic activity. While it is well documented that administered choline is incorporated into ACh, the ability of supplemental choline to increase the synthesis and release of ACh has been questionable. Studies in my laboratory have demonstrated that acute or chronic choline supplementation does not, by itself, en

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Sanz-Vicente, Isabel, Andrés Domínguez, Carlos Ferrández, and Javier Galbán. "Enzymatic methods for choline-containing water soluble phospholipids based on fluorescence of choline oxidase: Application to lyso-PAF." Analytical Biochemistry 519 (February 2017): 30–37. http://dx.doi.org/10.1016/j.ab.2016.12.005.

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31

Gaudin, Mathieu, Maï Panchal, Nicolas Auzeil, et al. "Choline-containing phospholipids in microdissected human Alzheimer’s disease brain senile plaque versus neuropil." Bioanalysis 4, no. 17 (2012): 2153–59. http://dx.doi.org/10.4155/bio.12.189.

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Bramanti, V., D. Bronzi, D. Tomassoni, et al. "Effect of Choline-Containing Phospholipids on Transglutaminase Activity in Primary Astroglial Cell Cultures." Clinical and Experimental Hypertension 30, no. 8 (2008): 798–807. http://dx.doi.org/10.1080/10641960802563576.

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Campanella, Luigi, Mauro Tomassetti, and Maria Pia Sammartino. "Enzyme sensor for the determination of choline-containing phospholipids in some biological fluids." Analyst 113, no. 1 (1988): 77. http://dx.doi.org/10.1039/an9881300077.

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Bukata, Lucas, Silvia Altabe, Diego de Mendoza, Rodolfo A. Ugalde, and Diego J. Comerci. "Phosphatidylethanolamine Synthesis Is Required for Optimal Virulence of Brucella abortus." Journal of Bacteriology 190, no. 24 (2008): 8197–203. http://dx.doi.org/10.1128/jb.01069-08.

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ABSTRACT The Brucella cell envelope contains the zwitterionic phospholipids phosphatidylcholine (PC) and phosphatidylethanolamine (PE). Synthesis of PC occurs exclusively via the PC synthase pathway, implying that the pathogen depends on the choline synthesized by the host cell to form PC. Notably, PC is necessary to sustain a chronic infection process, which suggests that the membrane lipid content is relevant for Brucella virulence. In this study we investigated the first step of PE biosynthesis in B. abortus, which is catalyzed by phosphatidylserine synthase (PssA). Disruption of pssA abrog

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van Wijk, Nick, Carol J. Watkins, Mark Böhlke, et al. "Plasma choline concentration varies with different dietary levels of vitamins B6, B12and folic acid in rats maintained on choline-adequate diets." British Journal of Nutrition 107, no. 10 (2011): 1408–12. http://dx.doi.org/10.1017/s0007114511004570.

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Choline is an important component of the human diet and is required for the endogenous synthesis of choline-containing phospholipids, acetylcholine and betaine. Choline can also be synthesisedde novoby the sequential methylation of phosphatidylethanolamine to phosphatidylcholine. Vitamins B6, B12and folate can enhance methylation capacity and therefore could influence choline availability not only by increasing endogenous choline synthesis but also by reducing choline utilisation. In the present experiment, we determined whether combined supplementation of these B vitamins affects plasma choli

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Boumann, Henry A., Jacob Gubbens, Martijn C. Koorengevel, et al. "Depletion of Phosphatidylcholine in Yeast Induces Shortening and Increased Saturation of the Lipid Acyl Chains: Evidence for Regulation of Intrinsic Membrane Curvature in a Eukaryote." Molecular Biology of the Cell 17, no. 2 (2006): 1006–17. http://dx.doi.org/10.1091/mbc.e05-04-0344.

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To study the consequences of depleting the major membrane phospholipid phosphatidylcholine (PC), exponentially growing cells of a yeast cho2opi3 double deletion mutant were transferred from medium containing choline to choline-free medium. Cell growth did not cease until the PC level had dropped below 2% of total phospholipids after four to five generations. Increasing contents of phosphatidylethanolamine (PE) and phosphatidylinositol made up for the loss of PC. During PC depletion, the remaining PC was subject to acyl chain remodeling with monounsaturated species replacing diunsaturated speci

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Campanella, L., M. Tomassetti, G. De Angelis, M. P. Sammartino, and M. Cordatore. "A new assay for choline-containing phospholipids in amniotic fluid by an enzyme sensor." Clinica Chimica Acta 169, no. 2-3 (1987): 175–82. http://dx.doi.org/10.1016/0009-8981(87)90317-2.

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Yang, Kui, Zhongdan Zhao, Richard W. Gross, and Xianlin Han. "Systematic analysis of choline-containing phospholipids using multi-dimensional mass spectrometry-based shotgun lipidomics." Journal of Chromatography B 877, no. 26 (2009): 2924–36. http://dx.doi.org/10.1016/j.jchromb.2009.01.016.

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Wurtman, Richard J., Jan K. Blusztajn, and Jean-Claude Maire. "“Autocannibalism” of choline-containing membrane phospholipids in the pathogenesis of Alzheimer's disease—A hypothesis." Neurochemistry International 7, no. 2 (1985): 369–72. http://dx.doi.org/10.1016/0197-0186(85)90127-5.

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Baldi, A., and L. Pinotti. "Choline metabolism in high-producing dairy cows: Metabolic and nutritional basis." Canadian Journal of Animal Science 86, no. 2 (2006): 207–12. http://dx.doi.org/10.4141/a05-061.

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Choline, the beta-hydroxyethyltrimethylammonium ion, is a strong base containing a trimethylated quaternary nitrogen. Choline occurs widely in biological materials as the compound itself, as acetylcholine and as various phospholipids. In feed ingredients and crude unprocessed fat sources, most choline is present as phosphatidylcholine (lecithin). Although soybean, soybean meal, rapeseed meal, fish meal and dried yeast are relatively rich sources of choline, the bioavailability of choline in these feedstuffs is only moderate. In dairy ruminants, choline is extensively degraded in the rumen. For

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Campanella, Luigi, Marco Mascini, Giuseppe Palleschi, and Mauro Tomassetti. "Determination of choline-containing phospholipids in human bile and serum by a new enzyme sensor." Clinica Chimica Acta 151, no. 1 (1985): 71–83. http://dx.doi.org/10.1016/0009-8981(85)90236-0.

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Vial, H. J., M. L. Ancelin, M. J. Thuet, and J. R. Philippot. "Phospholipid metabolism in Plasmodium-infected erythrocytes: guidelines for further studies using radioactive precursor incorporation." Parasitology 98, no. 3 (1989): 351–57. http://dx.doi.org/10.1017/s0031182000061424.

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SUMMARYThe biosynthesis of phospholipids is extensive in Plasmodium knowlesi-infected simian erythrocytes due to the synthesis of membranes by this single-cell eukaryote in a host erythrocyte devoid of any pathway for lipid biosynthesis. In the present paper, we show that the incorporation of [3H]glycerol, which reflects de novo biosynthesis, is better studied at 300 μM−1 mM than at the trace doses, since this non-physiological precursor does not modify the amount of phosphatidylcholine biosynthesis from [3H]choline. Time-course incorporation of radioactive glycerol, oleate, lysophosphatidylch

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Ingvordsen Lindahl, Ida, Virginia Artegoitia, Eimear Downey, et al. "Quantification of Human Milk Phospholipids: the Effect of Gestational and Lactational Age on Phospholipid Composition." Nutrients 11, no. 2 (2019): 222. http://dx.doi.org/10.3390/nu11020222.

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Human milk (HM) provides infants with macro- and micronutrients needed for growth and development. Milk phospholipids are important sources of bioactive components, such as long-chain polyunsaturated fatty acids (LC-PUFA) and choline, crucial for neural and visual development. Milk from mothers who have delivered prematurely (<37 weeks) might not meet the nutritional requirements for optimal development and growth. Using liquid chromatography tandem-mass spectrometry, 31 phospholipid (PL) species were quantified for colostrum (<5 days postpartum), transitional (≥5 days and ≤2 weeks) and

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Hachem, Mayssa, Houda Nacir, Madeleine Picq, et al. "Docosahexaenoic Acid (DHA) Bioavailability in Humans after Oral Intake of DHA-Containing Triacylglycerol or the Structured Phospholipid AceDoPC®." Nutrients 12, no. 1 (2020): 251. http://dx.doi.org/10.3390/nu12010251.

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AceDoPC® is a structured glycerophospholipid that targets the brain with docosahexaenoic acid (DHA) and is neuroprotective in the experimental ischemic stroke. AceDoPC® is a stabilized form of the physiological 2-DHA-LysoPC with an acetyl group at the sn1 position; preventing the migration of DHA from the sn2 to sn1 position. In this study we aimed to know the bioavailability of 13C-labeled DHA after oral intake of a single dose of 13C-AceDoPC®, in comparison with 13C-DHA in triglycerides (TAG), using gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS) to assess the 13C e

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McGraw, P., and S. A. Henry. "Mutations in the Saccharomyces cerevisiae opi3 gene: effects on phospholipid methylation, growth and cross-pathway regulation of inositol synthesis." Genetics 122, no. 2 (1989): 317–30. http://dx.doi.org/10.1093/genetics/122.2.317.

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Abstract We report the isolation of two new opi3 mutants by EMS mutagenesis, and construction of an insertion allele in vitro using the cloned gene. We have demonstrated that the opi3 mutations cause a deficiency in the two terminal phospholipid N-methyltransferase (PLMT) activities required for the de novo synthesis of PC (phosphatidylcholine). The opi3 mutants, under certain growth conditions, produce membrane virtually devoid of PC although, surprisingly, none of the mutants displays a strict auxotrophic requirement for choline. Although the opi3 mutants grow without supplements, we have sh

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Weaver, B. J., and B. J. Holub. "The thrombin-dependent enrichment of alkenylacyl ethanolamine phosphoglyceride with [14C]eicosapentaenoic and [3H]arachidonic acids in prelabelled human platelets." Biochemistry and Cell Biology 65, no. 4 (1987): 405–8. http://dx.doi.org/10.1139/o87-051.

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The thrombin-dependent enrichment of alkenylacyl ethanolamine phosphoglyceride in [14C]eicosapentaenoic acid ([14C]EPA) was demonstrated and compared with [3H]arachidonic acid ([3H]AA) following the simultaneous prelabelling of individual human platelet phospholipids with these two fatty acids. The alkenylacyl, diacyl, and alkylacyl classes of ethanolamine phosphoglycerides (PE) were separated by thin-layer chromatography as their acetylated derivatives after hydrolysis of the parent phospholipid with phospholipase C. The ratios of [3H]/[14C] for the increased radioactivity appearing in alkeny

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Ikarashi, Yasushi, and Yuji Maruyama. "Liquid chromatography with electrochemical detection for quantitation of bound choline liberated by phospholipase D hydrolysis from phospholipids containing choline in rat plasma." Journal of Chromatography B: Biomedical Sciences and Applications 616, no. 2 (1993): 323–26. http://dx.doi.org/10.1016/0378-4347(93)80402-p.

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Fisher, A. B., C. Dodia, and A. Chander. "Secretagogues for lung surfactant increase lung uptake of alveolar phospholipids." American Journal of Physiology-Lung Cellular and Molecular Physiology 257, no. 4 (1989): L248—L252. http://dx.doi.org/10.1152/ajplung.1989.257.4.l248.

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This study evaluated the effect of known secretagogues for lung surfactant on the uptake of phospholipid from the aveolar space. Synthetic liposomes containing tracer [choline-methyl-3H]dipalmitoyl phosphatidylcholine (DPPC) were instilled endotracheally in anesthetized rats. Lungs were then isolated and perfused under control conditions or with addition of terbutaline (0.1 mM), ATP (1 mM), or a phorbol ester, tradecanoyl phorbol acetate (TPA, 30 ng/ml). Uptake of liposomes was defined as lavage-resistant accumulation of radioactivity in the lung. Uptake at 2 h was 18.2 +/- 0.93% of instilled

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Stamatatos, Leonidas, and John R. Silvius. "Effects of cholesterol on the divalent cation-mediated interactions of vesicles containing amino and choline phospholipids." Biochimica et Biophysica Acta (BBA) - Biomembranes 905, no. 1 (1987): 81–90. http://dx.doi.org/10.1016/0005-2736(87)90011-3.

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Nie, Ying, Jin Lin He, and S. L. Hsia. "A micro enzymic method for determination of choline-containing phospholipids in serum and high density lipoproteins." Lipids 28, no. 10 (1993): 949–51. http://dx.doi.org/10.1007/bf02537506.

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