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  • Chemistry  (21)
  • Polymer and Materials Science  (14)
  • Cerebellum  (2)
  • adenylate cyclase  (2)
  • n-6 fatty acids  (2)
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Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Properties of adenylate cyclase from mouse thymus
    Amsterdam : Elsevier
    International Journal of Biochemistry 4 (1973), S. 79-88 
    Details
    ISSN: 0020-711X
    Schlagwort(e): Thymus ; adenylate cyclase ; catecholamines ; cyclic AMP ; hormone effects ; prostaglandin ; thymocytes
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0020-711X(73)90024-4
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  • 2
    Digitale Medien
    Digitale Medien
    A rare (arteriolo-)capillomedullary venous anomaly of the cerebellum (1996)
    Springer
    Neuroradiology 38 (1996), S. 91-95 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Venous angioma ; Cerebellum ; Developmental venous anomaly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A rare (arteriolo-)capillomedullary venous anomaly of the cerebellum was examined with CT, MRI, and angiography. Unlike the usual venous angioma, this case had such extraordinary features as: infratentorial location, involvement of the whole left cerebellum, an arteriolocapillary component and a history of progressive vomiting and chronic constipation in a 7-year-old boy. CT and MRI were consistent with an extensive vascular malformation, but the actual diagnosis was reached by angiography.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00593233
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  • 3
    Digitale Medien
    Digitale Medien
    A rare (arteriolo-)capillomedullary venous anomaly of the cerebellum (1995)
    Springer
    Neuroradiology 38 (1995), S. 91-95 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Key words Venous angioma ; Cerebellum ; Developmental venous anomaly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A rare (arteriolo-)capillo-medullary venous anomaly of the cerebellum was examined with CT, MRI, and angiography. Unlike the usual venous angioma, this case had such extraordinary features as: infratentorial location, involvement of the whole left cerebellum, an arteriolocapillary component and a history of progressive vomiting and chronic constipation in a 7-year-old boy. CT and MRI were consistent with an extensive vascular malformation, but the actual diagnosis was reached by angiography.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00593233
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  • 4
    Digitale Medien
    Digitale Medien
    Effect of n-3 and n-6 fatty acids on hepatic microsomal lipid metabolism: a time course study (1992)
    Springer
    Molecular and cellular biochemistry 116 (1992), S. 153-161 
    Details
    ISSN: 1573-4919
    Schlagwort(e): Delta 9 desaturase ; eicosapentaenoic acid ; gamma-linolenic acid ; octadecenoic acids ; n-3 fatty acids ; n-6 fatty acids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Notizen: Abstract The present study examines the time dependent effects of n-6 and n-3 polyunsaturated fatty acids on liver microsomal lipid metabolism in FVB mice fed a diet supplemented with a mixture of free fatty acids (mainly 18:3n-6 and 20:5n-3) at 25 mg/g diet. Significant changes in the fatty acid composition of total liver and microsomal lipids were observed after 7 days on the diets. Thereafter, some animals remained on the same diet while others were fed a diet supplemented with hydrogenated coconut oil (HCO). With the exception of 20:5n-3 which showed a slower recovery, establishment of the HCO pattern was rapid indicating that the diet-induced changes could be easily reversed. The unsaturation index, the cholesterol/phospholipid ratio and the microviscosity of the microsomal membranes were not affected by these dietary manipulations. Unsaturated fatty acid supplementation reduced the activity of Δ9 desaturase by 50%. Feeding the HCO diet to mice previously fed the EPA/GLA diet led to a progressive increase in Δ9 desaturase activity, reaching 80% of the day zero values after 14 days. The monoene content of hepatic total lipids reflected, in most cases, the changes in enzyme activity. This study shows that a low dose of a n-3 and n-6 free fatty acid mixture increases the quantities of members of the n-3 family, without loss of n-6 fatty acids in microsomal membranes and modifies the activity of Δ9 desaturase without altering the microsome physicochemical parameters.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00299394
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  • 5
    Digitale Medien
    Digitale Medien
    Effects of saturated fatty acids on n-6 fatty acid metabolism in cultured human monocyte-like cells (U937) (1993)
    Springer
    Molecular and cellular biochemistry 122 (1993), S. 49-58 
    Details
    ISSN: 1573-4919
    Schlagwort(e): n-6 fatty acids ; Δ5 desaturation ; incorporation ; peroxides ; cytotoxicity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Notizen: Abstract Effects of supplementation of saturated fatty acids (16:0 and 18:0) on metabolism of the cytotoxic n-6 fatty acids in cultured human monocyte-like cells (U937) have been examined. U937 cells were incubated in 5% delipidated fetal bovine serum containing 16:0 and 18:0. Supplementation of either 16:0 or 18:0 has no significant effect on the uptake of 18:2n-6 and 18:3n-6. However, addition of 16:0 to the medium increased whereas 18:0 suppressed the cytotoxic effects of 18:2n-6 and 18:3n-6. In addition, 16:0 supplementation reduced the incorporation of n-6 fatty acids in cellular phospholipid fraction, and enhanced the metabolism of n-6 fatty acids, particularly the conversion of 20:3n-6 to 20: 4n-6 in U937 cells. Results with microsomes prepared from U937 cells also showed that 16:0 supplementation increased the Δ5 desaturase activity. This may be related in part to an increase in the availability of 20:3n-6, since results obtained in a separate study have shown that 16:0 competed with 20:3n-6 for incorporaton into the phospholipid molecule at sn-2 position. Increasing the availability and formation of long chain n-6 fatty acids, which are cytotoxic, might also be responsible for increasing cytotoxicity of 16:0 supplementation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00925736
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  • 6
    Digitale Medien
    Digitale Medien
    Divalent cation and lipid-protein interactions of biomembranes (1993)
    Springer
    Bioscience reports 13 (1993), S. 143-157 
    Details
    ISSN: 1573-4935
    Schlagwort(e): divalent cation ; lipid-protein interaction ; H+-ATPase ; adenylate cyclase ; Sarcoplasmic reticulum Ca2+-ATPase
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Divalent cations play an important role in the functions of biomembranes. This review deals with three topics: (1) Mg2+-mediated change in physical state of phospholipid induces conformation and activity change of reconstituted mitochondrial H+-ATPase, (2) a proper transmembrane Ca2+ gradient is essential for the higher enzymatic activity of adenylate cyclase, and (3) role of transmembrane Ca2+ gradient in the modulation of reconstituted sarcoplasmic reticulm Ca2+-ATPase activity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01149959
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  • 7
    Digitale Medien
    Digitale Medien
    A free radical copolymerization model for simulating reactive processing of unsaturated polyester resins (1990)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 30 (1990), S. 684-692 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A free radical copolymerization model is proposed for simulating the reaction rates and conversions of styrene monomer and unsaturated polyester resins during curing. This model is based on film theory in which the rate constants reflect both reaction and diffusion resistances. Differential scanning calorimetry in combination with Fourier transform infrared spectroscopy is used to measure the overall and individual reactivities of reacting species. Model parameters are determined from experimental data. The applicability of this model is demonstrated in a cure simulation.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760301108
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  • 8
    Digitale Medien
    Digitale Medien
    Phosphorylation of yeast protein: Reduction of ribonucleic acid and isolation of yeast protein concentrate (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 28 (1986), S. 1690-1698 
    Details
    ISSN: 0006-3592
    Schlagwort(e): Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Yeast nucleoproteins were chemically phosphorylated with phosphorus oxychloride (POCL3). Studies using 31P nuclear magnetic resonance (NMR) spectroscopy, stability to pH and lysine estimation all indicated that the ∊-amino group of lysine was the principal functional group phosphorylated. Phosphorylation of ca. 30% of the lysine residues resulted in removal of more than 85% of contaminant ribonucleic acid from protein precipitated at pH 4.2. Phosphorylation did not alter the amino acid composition of yeast proteins and was reversible under acidic conditions. Based on the data, a method for the preparation of phosphorylated yeast protein with low levels of nucleic acid is proposed.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/bit.260281112
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  • 9
    Digitale Medien
    Digitale Medien
    Drop formation in air prior to jetting (1989)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 35 (1989), S. 1572-1574 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690350922
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  • 10
    Digitale Medien
    Digitale Medien
    Dispersed phase mass transfer during drop formation under jetting conditions (1977)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 23 (1977), S. 701-714 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A recent design procedure for perforated plate extraction columns requires extension to include jetting conditions at each perforation. For this purpose, correlations are obtained for jet length, jet contraction, drop size, and mass transfer coefficients in disperse phase controlled liquid-liquid systems. Experimental variables include nozzle size, flow velocity, and physical properties.
    Zusätzliches Material: 21 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690230512
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