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Articoli di riviste sul tema "Lipoproteins Analysis"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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1

Huang, Haibin, Mingqun Lin, Xueqi Wang, Takane Kikuchi, Heather Mottaz, Angela Norbeck, and Yasuko Rikihisa. "Proteomic Analysis of and Immune Responses to Ehrlichia chaffeensis Lipoproteins." Infection and Immunity 76, no. 8 (May 19, 2008): 3405–14. http://dx.doi.org/10.1128/iai.00056-08.

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ABSTRACT Ehrlichia chaffeensis is an obligately intracellular gram-negative bacterium and is the etiologic agent of human monocytic ehrlichiosis (HME). Although E. chaffeensis induces the generation of several cytokines and chemokines by leukocytes, E. chaffeensis lacks lipopolysaccharide and peptidoglycan. Bioinfomatic analysis of the E. chaffeensis genome, however, predicted genes encoding 15 lipoproteins and 3 posttranslational lipoprotein-processing enzymes. The present study showed that by use of multidimensional liquid chromatography followed by tandem mass spectrometry, all predicted li

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2

Polyakov, L. M., D. V. Sumenkova, R. A. Knyazev, and L. E. Panin. "The analysis of interaction between lipoproteins and steroid hormones." Biomeditsinskaya Khimiya 57, no. 3 (2011): 308–13. http://dx.doi.org/10.18097/pbmc20115703308.

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Using the methods of ultracentrifugation, gel-filtration and fluorescence quenching, we demonstrated, that plasma lipoproteins bind steroid hormones and can therefore play a role of their active transport form in an organism. High density lipoproteins have revealed the highest affinity to steroids for. It has been found, that protein component of lipoproteins takes part in the formation of lipoprotein-steroid complex. The apolipoprotein A-I, the main protein component of high density lipoproteins, is responsible for binding of steroid hormones. The calculated constants formation of the complex

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3

März, W., R. Siekmeier, H. Scharnagl, U. B. Seiffert, and W. Gross. "Fast lipoprotein chromatography: new method of analysis for plasma lipoproteins." Clinical Chemistry 39, no. 11 (November 1, 1993): 2276–81. http://dx.doi.org/10.1093/clinchem/39.11.2276.

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Abstract Fast lipoprotein chromatography (FLPC) is a novel method for quantifying lipoproteins. Plasma proteins are separated by fast-flow gel filtration. Lipoproteins are detected by post-column derivatization with an enzymatic cholesterol reagent. FLPC resolves very-low-, low-, and high-density lipoproteins (VLDL, LDL, and HDL, respectively) and completely separates apolipoprotein Al- and apolipoprotein B-containing lipoproteins. CVs for VLDL-cholesterol, LDL-cholesterol, and HDL-cholesterol are 5.8%, 2.0%, and 1.9%, respectively. We compared FLPC with a combined ultracentrifugation and prec

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4

Remans, Kim, Ken Vercammen, Josselin Bodilis, and Pierre Cornelis. "Genome-wide analysis and literature-based survey of lipoproteins in Pseudomonas aeruginosa." Microbiology 156, no. 9 (September 1, 2010): 2597–607. http://dx.doi.org/10.1099/mic.0.040659-0.

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Pseudomonas aeruginosa is a Gram-negative opportunistic pathogen able to cause acute or chronic infections. Like all other Pseudomonas species, P. aeruginosa has a large genome, >6 Mb, encoding more than 5000 proteins. Many proteins are localized in membranes, among them lipoproteins, which can be found tethered to the inner or the outer membrane. Lipoproteins are translocated from the cytoplasm and their N-terminal signal peptide is cleaved by the signal peptidase II, which recognizes a specific sequence called the lipobox just before the first cysteine of the mature lipoprotein. A majorit

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5

Storf, Stefanie, Friedhelm Pfeiffer, Kieran Dilks, Zhong Qiang Chen, Saheed Imam, and Mechthild Pohlschröder. "Mutational and Bioinformatic Analysis of Haloarchaeal Lipobox-Containing Proteins." Archaea 2010 (2010): 1–11. http://dx.doi.org/10.1155/2010/410975.

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A conserved lipid-modified cysteine found in a protein motif commonly referred to as a lipobox mediates the membrane anchoring of a subset of proteins transported across the bacterial cytoplasmic membrane via the Sec pathway. Sequenced haloarchaeal genomes encode many putative lipoproteins and recent studies have confirmed the importance of the conserved lipobox cysteine for signal peptide processing of three lipobox-containing proteins in the model archaeonHaloferax volcanii. We have extended thesein vivoanalyses to additionalHfx. volcaniisubstrates, supporting our previousin silicoprediction

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6

Mahmoodi, Bakhtawar, Ron Gansevoort, Friso Muntinghe, Robin Dullaart, Hanneke Kluin-Nelemans, Nic Veeger, Inge van Schouwenburg, and Karina Meijer. "Lipid levels do not influence the risk of venous thromboembolism." Thrombosis and Haemostasis 108, no. 11 (2012): 923–29. http://dx.doi.org/10.1160/th12-06-0426.

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SummaryStudies on the association between lipid profile and venous thromboembolism (VTE) are inconsistent. This could be caused by classical lipoproteins being inferior to apolipoproteins as markers for VTE risk. Therefore, we examined whether apolipoproteins are more strongly related to VTE than lipoproteins. For this analysis we used the PREVEND prospective community based observational cohort study. Levels of apolipoprotein A1 (ApoA1), apolipoprotein B (ApoB), total cholesterol (TC), high-density lipoprotein (HDL), non-HDL, low-density lipoprotein (LDL), triglycerides (TG), lipoprotein(a),

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7

Trentalance, A., G. Bruscalupi, L. Conti Devirgiliis, S. Leoni, M. T. Mangiantini, L. Rossini, S. Spagnuolo, and S. K. Erickson. "Changes in lipoprotein binding and uptake by hepatocytes during rat liver regeneration." Bioscience Reports 9, no. 2 (April 1, 1989): 231–41. http://dx.doi.org/10.1007/bf01116000.

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The binding and uptake of cholesterol enriched lipoproteins by isolated hepatocytes was decreased at 16 hours after partial hepatectomy, with a tendency to return to control values as the regeneration proceeds. The number of lipoprotein binding sites of total cellular membranes remained similar to control at 16 and 24 hours. The plasma lipoprotein pattern, determined by electrophoretic analysis, showed a lower per cent of very low density lipoproteins (VLDL) and a higher per cent of low density lipoproteins (LDL) at 16 and 24 hours post-partial hepatectomy. At these times, plasma lecithin: cho

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8

Edelberg, J. M., M. Weissler, and S. V. Pizzo. "Kinetic analysis of the effects of glycosaminoglycans and lipoproteins on urokinase-mediated plasminogen activation." Biochemical Journal 276, no. 3 (June 15, 1991): 785–91. http://dx.doi.org/10.1042/bj2760785.

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The glycosaminoglycans (GAGs) heparin, heparan sulphate and chondroitin 6-sulphate stimulate the rate of urokinase activation of human plasminogen. Kinetic analysis of plasminogen activation demonstrates that heparin, heparan sulphate and chondroitin 6-sulphate increased the catalytic rate (Kcat) by 5.3-, 3.5- and 2.5-fold respectively. These stimulatory GAGs had no effect on the affinity of urokinase for plasminogen, since the Km of the reaction is unaltered by the GAGs. The GAGs may enhance the rate of plasminogen activation through an interaction with the catalytic domain of the urokinase,

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9

Asmal, A. Cader. "Kinetic Analysis of Lipoproteins." JAMA: The Journal of the American Medical Association 253, no. 7 (February 15, 1985): 978. http://dx.doi.org/10.1001/jama.1985.03350310060015.

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Asmal, A. C. "Kinetic analysis of lipoproteins." JAMA: The Journal of the American Medical Association 253, no. 7 (February 15, 1985): 978–79. http://dx.doi.org/10.1001/jama.253.7.978.

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11

Levels, J. H. M., P. R. Abraham, A. van den Ende, and S. J. H. van Deventer. "Distribution and Kinetics of Lipoprotein-Bound Endotoxin." Infection and Immunity 69, no. 5 (May 1, 2001): 2821–28. http://dx.doi.org/10.1128/iai.69.5.2821-2828.2001.

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ABSTRACT Lipopolysaccharide (LPS), the major glycolipid component of gram-negative bacterial outer membranes, is a potent endotoxin responsible for pathophysiological symptoms characteristic of infection. The observation that the majority of LPS is found in association with plasma lipoproteins has prompted the suggestion that sequestering of LPS by lipid particles may form an integral part of a humoral detoxification mechanism. Previous studies on the biological properties of isolated lipoproteins used differential ultracentrifugation to separate the major subclasses. To preserve the integrity

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12

Virella, Gabriel, M. Brooks Derrick, Virginia Pate, Charlyne Chassereau, Suzanne R. Thorpe, and Maria F. Lopes-Virella. "Development of Capture Assays for Different Modifications of Human Low-Density Lipoprotein." Clinical Diagnostic Laboratory Immunology 12, no. 1 (January 2005): 68–75. http://dx.doi.org/10.1128/cdli.12.1.68-75.2005.

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ABSTRACT Antibodies to malondialdehyde (MDA)-modified low-density lipoprotein (LDL), copper-oxidized LDL (oxLDL), N ε(carboxymethyl) lysine (CML)-modified LDL, and advanced glycosylation end product (AGE)-modified LDL were obtained by immunization of rabbits with in vitro-modified human LDL preparations. After absorption of apolipoprotein B (ApoB) antibodies, we obtained antibodies specific for each modified lipoprotein with unique patterns of reactivity. MDA-LDL antibodies reacted strongly with MDA-LDL and also with oxLDL. CML-LDL antibodies reacted strongly with CML-LDL and also AGE-LDL. oxL

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13

Niu, You-Guo, and Rhys D. Evans. "Metabolism of very-low-density lipoprotein and chylomicrons by streptozotocin-induced diabetic rat heart: effects of diabetes and lipoprotein preference." American Journal of Physiology-Endocrinology and Metabolism 295, no. 5 (November 2008): E1106—E1116. http://dx.doi.org/10.1152/ajpendo.90260.2008.

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Very-low-density lipoprotein (VLDL) and chylomicrons (CM) are major sources of fatty acid supply to the heart, but little is known about their metabolism in diabetic myocardium. To investigate this, working hearts isolated from control rats and diabetic rats 2 wk following streptozotocin (STZ) injection were perfused with control and diabetic lipoproteins. Analysis of the diabetic lipoproteins showed that both VLDL and CM were altered compared with control lipoproteins; both were smaller and had different apolipoprotein composition. Heparin-releasable lipoprotein lipase (HR-LPL) activity was i

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14

Okazaki, Mitsuyo, Shinichi Usui, Akio Fukui, Isao Kubota, and Hitonobu Tomoike. "Component Analysis of HPLC Profiles of Unique Lipoprotein Subclass Cholesterols for Detection of Coronary Artery Disease." Clinical Chemistry 52, no. 11 (November 1, 2006): 2049–53. http://dx.doi.org/10.1373/clinchem.2006.070094.

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Abstract Background: Patients with coronary artery disease (CAD) are known to have several lipoprotein abnormalities. We examined plasma cholesterol concentrations of major lipoproteins and their subclasses, using a gel permeation HPLC, to establish an association between a lipoprotein subclass pattern and the presence of CAD. Methods: We performed a simple and fully automated HPLC, followed by mathematical treatment on chromatograms, for measuring cholesterol concentrations of major lipoproteins and their subclasses in 62 male patients (45 with CAD and 17 controls without CAD) who underwent c

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15

Collins, Lisamarie A., Shama P. Mirza, Ahmed H. Kissebah, and Michael Olivier. "Integrated approach for the comprehensive characterization of lipoproteins from human plasma using FPLC and nano-HPLC-tandem mass spectrometry." Physiological Genomics 40, no. 3 (February 2010): 208–15. http://dx.doi.org/10.1152/physiolgenomics.00136.2009.

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The implication of the various lipoprotein classes in the development of atherosclerotic cardiovascular disease has served to focus a great deal of attention on these particles over the past half-century. Using knowledge gained by the sequencing of the human genome, recent research efforts have been directed toward the elucidation of the proteomes of several lipoprotein subclasses. One of the challenges of such proteomic experimentation is the ability to initially isolate plasma lipoproteins subsequent to their analysis by mass spectrometry. Although several methods for the isolation of plasma

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16

Babu, M. Madan, M. Leena Priya, A. Tamil Selvan, Martin Madera, Julian Gough, L. Aravind, and K. Sankaran. "A Database of Bacterial Lipoproteins (DOLOP) with Functional Assignments to Predicted Lipoproteins." Journal of Bacteriology 188, no. 8 (April 15, 2006): 2761–73. http://dx.doi.org/10.1128/jb.188.8.2761-2773.2006.

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ABSTRACT Lipid modification of the N-terminal Cys residue (N-acyl-S-diacylglyceryl-Cys) has been found to be an essential, ubiquitous, and unique bacterial posttranslational modification. Such a modification allows anchoring of even highly hydrophilic proteins to the membrane which carry out a variety of functions important for bacteria, including pathogenesis. Hence, being able to identify such proteins is of great value. To this end, we have created a comprehensive database of bacterial lipoproteins, called DOLOP, which contains information and links to molecular details for about 278 distin

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17

Suomela, Jukka-Pekka, Markku Ahotupa, Olli Sjövall, Juha-Pekka Kurvinen, and Heikki Kallio. "Diet and lipoprotein oxidation: Analysis of oxidized triacylglycerols in pig lipoproteins." Lipids 39, no. 7 (July 2004): 639–47. http://dx.doi.org/10.1007/s11745-004-1277-4.

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Bourgeois, R., A. A. Després, J. Guertin, N. Perrot, P. Mitchell, C. Gotti, S. Bourassa, et al. "A Comparative Proteomic Analysis Of Lipoprotein(A) And Low-Density Lipoproteins." Atherosclerosis 287 (August 2019): e58. http://dx.doi.org/10.1016/j.atherosclerosis.2019.06.163.

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Otvos, J. D., E. J. Jeyarajah, L. W. Hayes, D. S. Freedman, N. A. Janjan, and T. Anderson. "Relationships between the proton nuclear magnetic resonance properties of plasma lipoproteins and cancer." Clinical Chemistry 37, no. 3 (March 1, 1991): 369–76. http://dx.doi.org/10.1093/clinchem/37.3.369.

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Abstract We conducted a comprehensive investigation of the origin of nuclear magnetic resonance (NMR) lineshape variability of plasma lipids among healthy individuals and those with cancer. The methyl and methylene resonances of lipid in human plasma, whose linewidths have been reported to correlate with the presence of malignancy, are composed of the overlapping resonances of "mobile" protons from the major lipoproteins (very-low-, low-, and high-density lipoproteins). We tested two hypotheses for the origin of the narrower plasma linewidths observed for cancer patients: (a) malignancy-associ

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20

Grundy, Scott M. "Kinetic Analysis of Lipoproteins-Reply." JAMA: The Journal of the American Medical Association 253, no. 7 (February 15, 1985): 978. http://dx.doi.org/10.1001/jama.1985.03350310060016.

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21

Otvos, J. D., E. J. Jeyarajah, and D. W. Bennett. "Quantification of plasma lipoproteins by proton nuclear magnetic resonance spectroscopy." Clinical Chemistry 37, no. 3 (March 1, 1991): 377–86. http://dx.doi.org/10.1093/clinchem/37.3.377.

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Abstract A new analytical procedure for quantifying plasma lipoproteins by proton nuclear magnetic resonance (NMR) spectroscopy has been developed that potentially offers significant advantages over existing clinical methods used for assessing risk of coronary heart disease. Analysis of a single spectrum of a nonfasting plasma sample, acquired simply and rapidly at moderate magnetic field strength (250 MHz), yields a complete profile of lipoprotein concentrations: chylomicrons and very-low-, low-, and high-density lipoproteins. The method is based on curve-fitting (spectral deconvolution) of t

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22

Rose, Jeffrey R., Maureen A. Mullarkey, William J. Christ, Lynn D. Hawkins, Melvyn Lynn, Yoshito Kishi, Kishor M. Wasan, Kathy Peteherych, and Daniel P. Rossignol. "Consequences of Interaction of a Lipophilic Endotoxin Antagonist with Plasma Lipoproteins." Antimicrobial Agents and Chemotherapy 44, no. 3 (March 1, 2000): 504–10. http://dx.doi.org/10.1128/aac.44.3.504-510.2000.

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ABSTRACT E5531, a novel synthetic lipid A analogue, antagonizes the toxic effects of lipopolysaccharide, making it a potential intravenously administered therapeutic agent for the treatment of sepsis. This report describes the distribution of E5531 in human blood and its activity when it is associated with different lipoprotein subclasses. After in vitro incubation of [14C]E5531 with blood, the great majority (>92%) of material was found in the plasma fraction. Analysis by size-exclusion and affinity chromatographies and density gradient centrifugation indicates that [14C]E5531 binds to lip

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23

Renee Ruhaak, L., Arnoud van der Laarse, and Christa M. Cobbaert. "Apolipoprotein profiling as a personalized approach to the diagnosis and treatment of dyslipidaemia." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 56, no. 3 (March 19, 2019): 338–56. http://dx.doi.org/10.1177/0004563219827620.

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An elevated low-density lipoprotein cholesterol concentration is a classical risk factor for cardiovascular disease. This has led to pharmacotherapy in patients with atherosclerotic heart disease or high heart disease risk with statins to reduce serum low-density lipoprotein cholesterol. Even in patients in whom the target levels of low-density lipoprotein cholesterol are reached, there remains a significant residual cardiovascular risk; this is due, in part, to a focus on low-density lipoprotein cholesterol alone and neglect of other important aspects of lipoprotein metabolism. A more refined

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Otvos, J. D., E. J. Jeyarajah, D. W. Bennett, and R. M. Krauss. "Development of a Proton Nuclear Magnetic Resonance Spectroscopic Method for Determining Plasma Lipoprotein Concentrations and Subspecies Distributions from a Single, Rapid Measurement." Clinical Chemistry 38, no. 9 (September 1, 1992): 1632–38. http://dx.doi.org/10.1093/clinchem/38.9.1632.

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Abstract We are developing a method for quantifying plasma lipoproteins by proton nuclear magnetic resonance (NMR) spectroscopy that offers advantages over existing clinical methods. We showed that the major lipoproteins have distinct NMR properties sufficient to permit their concentrations to be extracted from a computer lineshape analysis of the plasma lipid methyl resonance envelope (Clin Chem 1991; 37:377-86). We have now discovered that the spectra of the subspecies within each lipoprotein class are different enough to influence the composite spectrum of that class and hence the spectrum

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Takahashi, M., Y. Yui, H. Yasumoto, T. Aoyama, H. Morishita, R. Hattori, and C. Kawai. "Lipoproteins are inhibitors of endothelium-dependent relaxation of rabbit aorta." American Journal of Physiology-Heart and Circulatory Physiology 258, no. 1 (January 1, 1990): H1—H8. http://dx.doi.org/10.1152/ajpheart.1990.258.1.h1.

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The present study was performed to investigate plasma inhibitors of endothelium-dependent relaxation other than hemoglobin and low-density lipoprotein (LDL). We purified an inhibitor that contained a protein of 28,000 Da from human plasma by ammonium sulfate precipitation and serial chromatography. NH2-terminal sequence analysis revealed the protein to be homologous with human apolipoprotein A-I (Apo A-I), a major apolipoprotein of high-density lipoprotein (HDL). Very low-density lipoprotein (VLDL), LDL, and HDL obtained from rabbit plasma reversed endothelium-dependent relaxation of rabbit ao

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Adam, Lynda, and Louise Brissette. "Analysis of the lipoprotein binding site of rat liver membranes." Biochemistry and Cell Biology 72, no. 3-4 (March 1, 1994): 132–42. http://dx.doi.org/10.1139/o94-020.

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Intermediate density lipoproteins (IDL) were shown to bind to high- and low-affinity binding sites on rat liver membranes. The low-affinity sites were named lipoprotein binding sites (LBS), since they bind all classes of lipoproteins. This study was undertaken to further characterize the interaction of 125I-labelled IDL with the LBS of rat liver membranes to determine the chemical nature of the LBS. We found that the binding of IDL to the LBS is insensitive to EDTA and sensitive to heparin and that it is present on plasma membranes. Also, membranes were pretreated with various enzymes that hav

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Denham, E. L., P. N. Ward, and J. A. Leigh. "In the absence of Lgt, lipoproteins are shed from Streptococcus uberis independently of Lsp." Microbiology 155, no. 1 (January 1, 2009): 134–41. http://dx.doi.org/10.1099/mic.0.022061-0.

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The role of lipoprotein diacylglyceryl transferase (Lgt) and lipoprotein signal peptidase (Lsp) responsible for processing lipoproteins was investigated in Streptococcus uberis, a common cause of bovine mastitis. In the absence of Lgt, three lipoproteins [MtuA (SUB0473), Hap (SUB1625) and an extracellular solute-binding protein (SUB0365)] were detected in extracellular locations. All were shown by Edman degradation analysis to be cleaved on the carboxy side of the LXXC lipobox. Detection of MtuA, a lipoprotein shown previously to be essential for infectivity and virulence, was used as a surrog

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Fukushima, Keizo, Shinji Kobuchi, Masakazu Shibata, Kanji Takada, and Nobuyuki Sugioka. "Decrease in Brain Distribution of Fluvoxamine in Experimental Hyperlipidemic Rats." Journal of Pharmacy & Pharmaceutical Sciences 14, no. 3 (November 2, 2011): 414. http://dx.doi.org/10.18433/j3vg6t.

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ABSTRACT: Purpose. Many clinical reports and trials have suggested that fluvoxamine (FLV) reduces plasma lipoprotein levels. However, few studies have reported the effect of plasma lipoproteins on FLV pharmacokinetics. The aim of the present study was to investigate the affinities of FLV to plasma lipoproteins and the effect of plasma lipoproteins on the biodistribution of FLV using an experimental hyperlipidemic (HL) rat model. Methods. HL rats were prepared by intraperitoneal administration of Poloxamer-407 solution (1.0 g/kg). In vitro protein binding and distribution of FLV in plasma lipop

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Denham, E. L., P. N. Ward, and J. A. Leigh. "Lipoprotein Signal Peptides Are Processed by Lsp and Eep of Streptococcus uberis." Journal of Bacteriology 190, no. 13 (May 9, 2008): 4641–47. http://dx.doi.org/10.1128/jb.00287-08.

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ABSTRACT Lipoprotein signal peptidase (lsp) is responsible for cleaving the signal peptide sequence of lipoproteins in gram-positive bacteria. Investigation of the role of Lsp in Streptococcus uberis, a common cause of bovine mastitis, was undertaken using the lipoprotein MtuA (a protein essential for virulence) as a marker. The S. uberis lsp mutant phenotype displayed novel lipoprotein processing. Not only was full-length (uncleaved) MtuA detected by Western blotting, but during late log phase, a lower-molecular-weight derivative of MtuA was evident. Similar analysis of an S. uberis double mu

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Fernández-Cidón, Bárbara, Beatriz Candás-Estébanez, Miriam Gil-Serret, Núria Amigó, Emili Corbella, M. Ángeles Rodríguez-Sánchez, Ariadna Padró-Miquel, et al. "Physicochemical Properties of Lipoproteins Assessed by Nuclear Magnetic Resonance as a Predictor of Premature Cardiovascular Disease. PRESARV-SEA Study." Journal of Clinical Medicine 10, no. 7 (March 29, 2021): 1379. http://dx.doi.org/10.3390/jcm10071379.

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Some lipoprotein disorders related to the residual risk of premature cardiovascular disease (PCVD) are not detected by the conventional lipid profile. In this case-control study, the predictive power of PCVD of serum sdLDL-C, measured using a lipoprotein precipitation method, and of the physicochemical properties of serum lipoproteins, analyzed by nuclear magnetic resonance (NMR) techniques, were evaluated. We studied a group of patients with a first PCVD event (n = 125) and a group of control subjects (n = 190). Conventional lipid profile, the size and number of Very Low Density Lipoproteins

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Yamauchi, Kazuyoshi, Minoru Tozuka, Hiroya Hidaka, Eiko Hidaka, Yoshiyuki Kondo, and Tsutomu Katsuyama. "Characterization of Apolipoprotein E-containing Lipoproteins in Cerebrospinal Fluid: Effect of Phenotype on the Distribution of Apolipoprotein E." Clinical Chemistry 45, no. 9 (September 1, 1999): 1431–38. http://dx.doi.org/10.1093/clinchem/45.9.1431.

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Abstract Background: Apolipoprotein (apo) E, one of the main apolipoproteins in the central nervous system, may play an important role in lipid metabolism; however, the details of its function are poorly understood. In this study, we characterized apoE-containing lipoproteins in cerebrospinal fluid (CSF) and examined the effect of apoE phenotype on the distribution of apoE among the lipoprotein fractions. Methods: CSF lipoproteins were fractionated by gel filtration and ultracentrifugation, and then characterized by electrophoresis, immunoblot, electron microscopy, and analysis of apoE, total

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Papadopulo, I., F. de La Farge, J. P. Braun, P. Valdiguié, and A. G. Rico. "Analysis for lipoproteins in horse serum." Clinical Chemistry 33, no. 6 (June 1, 1987): 1081. http://dx.doi.org/10.1093/clinchem/33.6.1081.

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Barrie, J., A. S. Nash, and T. D. G. Watson. "Quantitative analysis of canine plasma lipoproteins." Journal of Small Animal Practice 34, no. 5 (May 1993): 226–31. http://dx.doi.org/10.1111/j.1748-5827.1993.tb02671.x.

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Fruchart, J. C. "Molecular analysis of lipoproteins ? clinical application." Fresenius' Journal of Analytical Chemistry 343, no. 1 (1992): 35. http://dx.doi.org/10.1007/bf00331974.

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Mešalić, Lejla, and Edhem Hasković. "Analysis of lipid status, body mass index and waist-hip ratio in post-menopausal women." Journal of Health Sciences 2, no. 2 (September 15, 2012): 122–26. http://dx.doi.org/10.17532/jhsci.2012.49.

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Introduction: Menopause is the absence of menses in the period longer that one year. It is widely accepted that menopause leads to changes in hormonal status, metabolism and lipid profi le. The aim of this study wasto analyze the infl uence of menopause on the concentrations of lipids, lipoproteins and also the influence of body mass index (BMI) and waist-hip ratio (WHR) on lipid profi le in post-menopausal women.Methods: Sixty post-menopausal women of average age of 52.82 years were compared to a group of 34 pre-menopausal women average age of 47.92 years.Results: Post-menopausal women had hi

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Rajalahti, Tarja, Eivind Aadland, Geir Kåre Resaland, Sigmund Alfred Anderssen, and Olav Martin Kvalheim. "Cardiometabolic Associations between Physical Activity, Adiposity, and Lipoprotein Subclasses in Prepubertal Norwegian Children." Nutrients 13, no. 6 (June 19, 2021): 2095. http://dx.doi.org/10.3390/nu13062095.

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Abstract (sommario):

Lipoprotein subclasses possess crucial cardiometabolic information. Due to strong multicollinearity among variables, little is known about the strength of influence of physical activity (PA) and adiposity upon this cardiometabolic pattern. Using a novel approach to adjust for covariates, we aimed at determining the “net” patterns and strength for PA and adiposity to the lipoprotein profile. Principal component and multivariate pattern analysis were used for the analysis of 841 prepubertal children characterized by 26 lipoprotein features determined by proton nuclear magnetic resonance spectros

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Novotny, WF, M. Palmier, TC Wun, GJ Jr Broze, and JP Miletich. "Purification and properties of heparin-releasable lipoprotein- associated coagulation inhibitor." Blood 78, no. 2 (July 15, 1991): 394–400. http://dx.doi.org/10.1182/blood.v78.2.394.394.

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Abstract The lipoprotein-associated coagulation inhibitor (LACI) is present in vivo in at least three different pools: sequestered in platelets, associated with plasma lipoproteins, and released into plasma by intravenous heparin, possibly from vascular endothelium. In this study we have purified the heparin-relesable form of LACI from post-heparin plasma and show that it is structurally different from lipoprotein LACI. The purification scheme uses heparin-agarose chromatography, immunoaffinity chromatography, and size-exclusion chromatography and results in a 185,000-fold purification with a

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Novotny, WF, M. Palmier, TC Wun, GJ Jr Broze, and JP Miletich. "Purification and properties of heparin-releasable lipoprotein- associated coagulation inhibitor." Blood 78, no. 2 (July 15, 1991): 394–400. http://dx.doi.org/10.1182/blood.v78.2.394.bloodjournal782394.

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Abstract (sommario):

The lipoprotein-associated coagulation inhibitor (LACI) is present in vivo in at least three different pools: sequestered in platelets, associated with plasma lipoproteins, and released into plasma by intravenous heparin, possibly from vascular endothelium. In this study we have purified the heparin-relesable form of LACI from post-heparin plasma and show that it is structurally different from lipoprotein LACI. The purification scheme uses heparin-agarose chromatography, immunoaffinity chromatography, and size-exclusion chromatography and results in a 185,000-fold purification with a 33% yield

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39

Caro, Florence, Nicole M. Place, and John J. Mekalanos. "Analysis of lipoprotein transport depletion in Vibrio cholerae using CRISPRi." Proceedings of the National Academy of Sciences 116, no. 34 (August 1, 2019): 17013–22. http://dx.doi.org/10.1073/pnas.1906158116.

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Genes necessary for the survival or reproduction of a cell are an attractive class of antibiotic targets. Studying essential genes by classical genetics, however, is inherently problematic because it is impossible to knock them out. Here, we screened a set of predicted essential genes for growth inhibition using CRISPR-interference (CRISPRi) knockdown in the human pathogen Vibrio cholerae. We demonstrate that CRISPRi knockdown of 37 predicted essential genes inhibits V. cholerae viability, thus validating the products of these genes as potential drug target candidates. V. cholerae was particul

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40

Yan, Haizhao, Manabu Niimi, Fumikazu Matsuhisa, Huanjin Zhou, Shuji Kitajima, Yajie Chen, Chuan Wang, et al. "Apolipoprotein CIII Deficiency Protects Against Atherosclerosis in Knockout Rabbits." Arteriosclerosis, Thrombosis, and Vascular Biology 40, no. 9 (September 2020): 2095–107. http://dx.doi.org/10.1161/atvbaha.120.314368.

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Abstract (sommario):

Objective: Apo (apolipoprotein) CIII mediates the metabolism of triglyceride (TG)-rich lipoproteins. High levels of plasma apoCIII are positively correlated with the plasma TG levels and increase the cardiovascular risk. However, whether apoCIII is directly involved in the development of atherosclerosis has not been fully elucidated. Approach and Results: To examine the possible roles of apoCIII in lipoprotein metabolism and atherosclerosis, we generated apoCIII KO (knockout) rabbits using ZFN (zinc finger nuclease) technique. On a normal standard diet, apoCIII KO rabbits exhibited significant

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41

Minamoto, Tomomi, Rosemary L. Walzem, Alexandra J. Hamilton, Steve L. Hill, Harold R. Payne, Jonathan A. Lidbury, Jan S. Suchodolski, and Jörg M. Steiner. "Altered lipoprotein profiles in cats with hepatic lipidosis." Journal of Feline Medicine and Surgery 21, no. 4 (June 4, 2018): 363–72. http://dx.doi.org/10.1177/1098612x18780060.

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Abstract (sommario):

Objectives The aim of this study was to assess serum lipoprotein profiles using rapid single-spin continuous lipoprotein density profiling (CLPDP) in healthy control cats and cats with hepatic lipidosis (HL). Methods Analysis of serum lipoprotein profiles using the CLPDP was performed in 23 cats with HL and 20 healthy control cats. The area under the curve for each lipoprotein fraction, triglyceride (TG)-rich lipoproteins (TRLs), low-density lipoproteins (LDLs) and high-density lipoproteins (HDLs), was calculated. Serum cholesterol and TG concentrations were measured using a clinical chemistry

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Szczepanek, S. M., S. Frasca, V. L. Schumacher, X. Liao, M. Padula, S. P. Djordjevic, and S. J. Geary. "Identification of Lipoprotein MslA as a Neoteric Virulence Factor of Mycoplasma gallisepticum." Infection and Immunity 78, no. 8 (June 1, 2010): 3475–83. http://dx.doi.org/10.1128/iai.00154-10.

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Abstract (sommario):

ABSTRACT Many lipoproteins are expressed on the surfaces of mycoplasmas, and some have been implicated as playing roles in pathogenesis. Family 2 lipoproteins of Mycoplasma pneumoniae have a conserved “mycoplasma lipoprotein X” central domain and a “mycoplasma lipoprotein 10” C-terminal domain and are differentially expressed in response to environmental conditions. Homologues of family 2 lipoproteins are Mycoplasma specific and include the lipoprotein of Mycoplasma gallisepticum, encoded by the MGA0674 gene. Comparative transcriptomic analysis of the M. gallisepticum live attenuated vaccine s

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Das, Sankar, Taisei Kanamoto, Xiuchun Ge, Ping Xu, Takeshi Unoki, Cindy L. Munro, and Todd Kitten. "Contribution of Lipoproteins and Lipoprotein Processing to Endocarditis Virulence in Streptococcus sanguinis." Journal of Bacteriology 191, no. 13 (April 24, 2009): 4166–79. http://dx.doi.org/10.1128/jb.01739-08.

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Abstract (sommario):

ABSTRACT Streptococcus sanguinis is an important cause of infective endocarditis. Previous studies have identified lipoproteins as virulence determinants in other streptococcal species. Using a bioinformatic approach, we identified 52 putative lipoprotein genes in S. sanguinis strain SK36 as well as genes encoding the lipoprotein-processing enzymes prolipoprotein diacylglyceryl transferase (lgt) and signal peptidase II (lspA). We employed a directed signature-tagged mutagenesis approach to systematically disrupt these genes and screen each mutant for the loss of virulence in an animal model of

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Reffuveille, Fany, Charlène Leneveu, Sylvie Chevalier, Yanick Auffray, and Alain Rincé. "Lipoproteins of Enterococcus faecalis: bioinformatic identification, expression analysis and relation to virulence." Microbiology 157, no. 11 (November 1, 2011): 3001–13. http://dx.doi.org/10.1099/mic.0.053314-0.

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Abstract (sommario):

Enterococcus faecalis is a ubiquitous bacterium that is capable of surviving in a broad range of natural environments, including the human host, as either a natural commensal or an opportunistic pathogen involved in severe hospital-acquired infections. How such opportunistic pathogens cause fatal infections is largely unknown but it is likely that they are equipped with sophisticated systems to perceive external signals and interact with eukaryotic cells. Accordingly, being partially exposed at the cell exterior, some surface-associated proteins are involved in several steps of the infection p

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Et al., Alkhafajy. "A Molecular and Biochemical Study for Cholesteryl Ester Transfer Protein (CETP) Taq1B in Iraqi Patients with Hyperlipidemia." Baghdad Science Journal 16, no. 3(Suppl.) (September 22, 2019): 0747. http://dx.doi.org/10.21123/bsj.2019.16.3(suppl.).0747.

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Abstract (sommario):

Cholesteryl ester transfer protein gene contains some single nucleotide polymorphisms, which have been associated with serum high-density lipoprotein concentration and other lipoproteins. This study is done for determining of cholesteryl ester transfer protein polymorphism and evaluate its effect on serum lipid profile concentrations in some hyperlipidemic patients compared with healthy subjects in Salah Al-din governorate-Iraq. Blood samples were taken from (90) patients suffering from hyperlipidemia, and (70) samples that were apparently healthy controls. Serum lipid concentrations were meas

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Arfuso, Francesca, Francesco Fazio, Michele Panzera, Claudia Giannetto, Simona Di Pietro, Elisabetta Giudice, and Giuseppe Piccione. "Lipid and lipoprotein profile changes in newborn calves in response to the perinatal period." Acta Veterinaria 67, no. 1 (March 1, 2017): 25–32. http://dx.doi.org/10.1515/acve-2017-0003.

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Abstract (sommario):

AbstractThe aim of this study was to evaluate the dynamic changes of serum lipid and lipoprotein profiles in 6 newborn calves during the first five days of life. From each calve blood sampling was performed daily starting from day 1 (after colostrum intake) until day 5 of life. Blood samples collected from each animal were tested for serum total lipids, phospholipids, non-esterified fatty acids (NEFAs), triglycerides, very low density lipoproteins (VLDLs), total cholesterol (Total-Chol), high density lipoproteins (HDLs) and low density lipoproteins (LDLs). One-way repeated measures analysis of

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47

Lewenza, Shawn, Musa M. Mhlanga, and Anthony P. Pugsley. "Novel Inner Membrane Retention Signals in Pseudomonas aeruginosa Lipoproteins." Journal of Bacteriology 190, no. 18 (July 18, 2008): 6119–25. http://dx.doi.org/10.1128/jb.00603-08.

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Abstract (sommario):

ABSTRACT The ultimate membrane localization and function of most of the 185 predicted Pseudomonas aeruginosa PAO1 lipoproteins remain unknown. We constructed a fluorescent lipoprotein, CSFPOmlA-ChFP, by fusing the signal peptide and the first four amino acids of the P. aeruginosa outer membrane lipoprotein OmlA to the monomeric red fluorescent protein mCherry (ChFP). When cells were plasmolyzed with 0.5 M NaCl, the inner membrane separated from the outer membrane and formed plasmolysis bays. This permits the direct observation of fluorescence in either the outer or inner membrane. CSFPOmlA-ChF

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48

Kuchenhoff, A., B. Harrach-Ruprecht, and H. Robenek. "Interaction of apo E-containing lipoproteins with the LDL receptor-related protein LRP." American Journal of Physiology-Cell Physiology 272, no. 2 (February 1, 1997): C369—C382. http://dx.doi.org/10.1152/ajpcell.1997.272.2.c369.

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Abstract (sommario):

The low-density lipoprotein (LDL) receptor-related protein (LRP) is a multifunctional cell surface receptor that interacts with apolipoprotein E (apo E)-rich lipoproteins, and alpha2-macroglobulin (alpha2-M) in the activated state (alpha2-M*). Whether LRP is a physiologically relevant lipoprotein receptor for naturally occurring apo E-rich lipoproteins, however, is still under discussion. To address this question, we isolated beta-migrating very low density lipoprotein (beta-VLDL) from rabbits by using gel filtration chromatography. Biochemical analysis of beta-VLDL subfractions demonstrated t

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49

Yao, Ji-Jin, Xiao-Jun He, Wayne R. Lawrence, Wang-Jian Zhang, Jia Kou, Fan Zhang, Guan-Qun Zhou, Si-Yang Wang, and Ying Sun. "Prognostic Value of Circulating Lipoprotein in Patients with Locoregionally Advanced Nasopharyngeal Carcinoma." Cellular Physiology and Biochemistry 48, no. 1 (2018): 285–92. http://dx.doi.org/10.1159/000491728.

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Abstract (sommario):

Background/Aims: Lipoproteins have been reported to be associated with prognosis in various cancers; however, the prognostic value of lipoproteins in patients with nasopharyngeal carcinoma (NPC) remains largely unknown. We aim to asses the role of circulating lipoproteins in locoregionally advanced NPC patients. Methods: Between October 2009 and August 2012, a total of 1,081 patients with stage III-IVB NPC were included in the analysis. Circulating high-density lipoprotein (HDL) and low-density lipoprotein (LDL) are the two key lipoproteins, which were measured at baseline. Receiver operating

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50

Roche, D., V. Atger, N. T. Le Quang, A. Girard, and O. G. Ekindjian. "Polyacrylamide gel electrophoresis in quantification of high-density lipoprotein cholesterol." Clinical Chemistry 31, no. 11 (November 1, 1985): 1893–95. http://dx.doi.org/10.1093/clinchem/31.11.1893.

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Abstract (sommario):

Abstract We evaluated a method for quantifying high-density lipoprotein cholesterol in plasma, based on electrophoretic migration of the prestained (with Sudan Black III) sample through a discontinuous polyacrylamide++ gel and densitometric integration of the stain associated with each class of lipoprotein. With this method, operations can be carried out on all types of lipoproteins over a broad range of concentrations. Overloading with very-low and low-density lipoproteins did not affect reliability within a wide range of HDL concentrations (0.45 to 16.60 mmol/L). Results for 22 individual pl

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