51
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Ostermann G, Kertscher HP, Winkler L, Schlag B, Rühling K, Till U. The role of lipoproteins in the degradation of platelet-activating factor. Thromb Res 1986; 44:303-14. [PMID: 3798402 DOI: 10.1016/0049-3848(86)90005-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Measuring both platelet-stimulating activity and liberation of acetate, the capacity of serum and individual lipoproteins to degrade the platelet-activating factor (PAF) was studied. The highest degrading effect relative to the protein content was found in very low density lipoproteins (VLDL) and in low density lipoproteins (LDL). The effect is about 10- and 100-fold higher than that of high density lipoproteins (HDL) and serum, respectively. In lipoprotein deficient serum (LPDS) less than 5% of serum activity is detectable. Considerable individual variations are observed measuring the degradation of PAF under standard conditions in plasma from 37 healthy volunteers. Moreover, this activity is shown to correlate strongly with the plasma concentration of LDL. On the other hand, a significant negative correlation was found between the PAF-degrading capacity and the plasma concentration of HDL. In contrast, the PAF-degradation is unrelated to the concentration of plasma triglycerides. The results point to a possible role of plasma lipoproteins in regulating the degradation of PAF released into the circulation.
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52
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Beitz J, Block HU, Beitz A, Müller G, Winkler L, Dargel R, Mest HJ. Endogenous lipoproteins modify the thromboxane formation capacity of platelets. Atherosclerosis 1986; 60:95-9. [PMID: 3718615 DOI: 10.1016/0021-9150(86)90001-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A significantly negative correlation was demonstrated between HDL-cholesterol levels of serum and the thromboxane B2 (TXB2) formation in clotted whole blood, whereas a significantly positive correlation was estimated between the LDL cholesterol or apolipoprotein B (apo B) levels and the TXB2 formation in clotted whole blood. Similar relationships were observed between the HDL and apo B serum levels and the thrombin-induced malondialdehyde formation in platelet-rich plasma. The levels of HDL2 cholesterol, total cholesterol, apo A-I and of triglycerides were not significantly correlated with the TXB2 or malondialdehyde formation in both systems. The results in this study support the hypothesis that the TXB2 formation may be modulated by endogenous lipoproteins: high level of LDL stimulates and high level of HDL inhibits the TXB2 formation.
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53
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Rose JC, Kute TE, Winkler L. Glucocorticoid receptors in sheep brain tissues during development. THE AMERICAN JOURNAL OF PHYSIOLOGY 1985; 249:E345-9. [PMID: 4050987 DOI: 10.1152/ajpendo.1985.249.4.e345] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this study we describe changes in the number of glucocorticoid binding sites that occur in cytosols of pituitary, hypothalamic, and hippocampal tissue obtained from fetal, newborn, and adult sheep. We observed specific, saturable binding of [3H]triamcinolone acetonide by cytosols of all three tissues. There were both age-related and tissue-related differences in the number of binding sites observed. By midgestation (70 days) significant quantities of binding sites were present in pituitary and brain tissues, and the number remained relatively constant throughout gestation and in the neonatal period. The number of binding sites declined markedly in cytosols from adult tissues. At all ages there were more binding sites present in pituitary cytosols than in cytosols of hypothalamus and hippocampus. The sucrose density gradient profile of the radioactive ligand-binding site complex is characteristic of a glucocorticoid receptor. Thus, by midgestation at least a portion of the biochemical machinery mediating glucocorticoid effects is present in the fetal pituitary and in specific brain tissues considered important in the modulation of ACTH secretion by corticosteroids.
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54
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Winkler L, Schlag B, Zieger M, Rüger L, Dargel R. [A simple procedure for the immunoturbidimetric determination of apolipoprotein B]. ZEITSCHRIFT FUR MEDIZINISCHE LABORATORIUMSDIAGNOSTIK 1984; 25:307-312. [PMID: 6495813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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55
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Kiser J, Jungi E, Winkler L, Dubach C, Lampietti R, Salchli S, Heckendorn V. [Hypothermia: scalp cooling for the prevention of cytostatic-induced hair loss]. KRANKENPFLEGE. SOINS INFIRMIERS 1982:29-32. [PMID: 6312166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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56
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Winkler L, Fennel KA. Values and nursing ethics: a bibliography. JOURNAL OF PSYCHIATRIC NURSING AND MENTAL HEALTH SERVICES 1981; 19:19-20. [PMID: 6268778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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57
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Westphal P, Stenström A, Lundgren S, Bäckman B, Hultin M, Hallonsten AL, Nordin G, Winkler L, Eriksson SG. [Royal Assembly symposium 1979. Anesthesia, nitrous oxide or drugs?]. TANDLAKARTIDNINGEN 1980; 72:536-40, 546-51. [PMID: 6944877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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58
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Zimmermann T, Winkler L, Möller U, Schubert H, Goetze E. Synthesis of arachidonic acid in the human placenta in vitro. BIOLOGY OF THE NEONATE 1979; 35:209-12. [PMID: 435597 DOI: 10.1159/000241174] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The syntheses of arachidonic acid and total fatty acids were measured in human placentas at the end of the first trimester and at term using 14C-acetate in in vitro incorporation experiments. The rates of arachidonic acid synthesis were determined to be 0.70 (first trimester) and 0.64 (term) mumol/h/100 g of placental tissue. The calculated rates of total fatty acid synthesis amount to 0.5 (first trimester) and 0.6 (term) mumol palmitate-equivalents/h/100 g. The results suggest that the human placenta seems to be not dependent on maternal arachidonic acid. Near term the placenta even could be source of arachidonic acid.
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59
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Vargas R, Winkler L, Ruíz-Mojica O, Santos D. [Acute neprhotic syndrome in children]. GAC MED MEX 1977; 113:585-90. [PMID: 614151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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60
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Winkler L, Schlag B, Goetze E. Concentration and composition of the lipoprotein classes in human umbilical cord serum. Clin Chim Acta 1977; 76:187-91. [PMID: 193656 DOI: 10.1016/0009-8981(77)90095-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The concentration and composition of the lipoprotein density classes d less than 1.006 (VLDL), d = 1.006 - 1.064 (LDL), and d = 1.064 - 1.21 (HDL) of human umbilical cord serum were investigated by means of preparative ultracentrifugation. The concentrations of all the density classes, in particular that of the VLDL, are lower than in adults; the values correspond to 8.1 (VLDL), 59.2 (LDL), and 77.4 (HDL) mg/100 ml. About 15% of the total cholesterol and roughly 40% of the total lipid phosphorus did not float at the highest density of 1.21. The composition of the LDL and the HDL was principally in agreement with the pattern obtained in adults. The VLDL of the cord serum, however, showed a lower amount of triglycerides (45%) and a higher content of proteins (22%) than the VLDL from serum of adults. In cord serum only 25% of the total triglycerides are associated with the VLDL fraction, while more than 50% of the triglycerides circulate as a constituent of the LDL.
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61
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Heim T, Schenk H, Wagner H, Winkler L, Goetze E, Varga F. In vivo metabolism of 14C-labeled palmitic acid in serum and in brown and white adipose tissues of well-fed and starved newborn rabbits. I. Tracer kinetic analysis of free fatty acid metabolism in serum. BIOLOGY OF THE NEONATE 1974; 24:244-55. [PMID: 4844250 DOI: 10.1159/000240655] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
After i.v. injection of 20.10<sup>6</sup> cpm/100 g body weight <sup>14</sup>C-1-palmitic acid at a thermoneutral environment (Ta 35 °C) the primary FFA pool was in 7 days old well fed rabbits (Group I) 9,57 µmole and in rabbits of the same age but previously starved for 48 h at 20 °C (group II) 3.17 and in those starved 72 h at 35 °C (group II) 1.89. There was no significant difference in disappearance rate (λ) half time (t<sub>0.5</sub>) and turnover time (t<sub>t</sub>) indicating that the rate at which the label disappeared from the forerunner FFA pool was more dependent on the Ta maintained during the tracer kinetic experiment, than on the duration and the thermal conditions of the previous starvation. The absolute turnover rate of serum FFA (ms) was 9.38 µmole FFA/min in group I and 3.44 and 2.67 in group II and group III, respectively; pointing out that the transfer of FFA from the forerunner pool into the fatty acid compartments of various organs and tissues was significantly reduced by starvation.
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62
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Schenk H, Heim T, Wagner H, Winkler L, Varga F, Goetze E. In vivo metabolism of 14C-labeled palmitic acid in serum and in brown and white adipose tissue of well-fed and starved newborn rabbits. II. Tracer kinetic analysis of the incorporation rate of serum free fatty acids into the main lipid fractions of brown and white adipose tissues. BIOLOGY OF THE NEONATE 1974; 24:256-72. [PMID: 4367455 DOI: 10.1159/000240656] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Starvation at an ambient temperature (T<sub>a</sub>) of 35 °C for 72 h or at T<sub>a</sub> 20 °C for 48 h affected differently the free fatty acid (FFA), phospholipid and glyceride pools as well as the total flux of fatty acid (msf) between the intracellular and extracellular lipid compartments of brown (BAT) and white adipose tissues (WAT). Tracer kinetic studies with 20.10<sup>6</sup> cpm/100 g body weight <sup>14</sup>C-1-palmitic acid injected at T<sub>a</sub> 35 °C showed that BAT takes up a consistently higher proportion of the initial serum FFA pool (ms) than WAT in both fed (group I) and fasting newborn rabbits (group II at T<sub>a</sub> 20 °C; group III at T<sub>a</sub> 35 °C. BAT of animals starved in the cold prior to the tracer’s injection (group II) shared a considerably larger fraction of ms than that of fed littermates (group I). Fasting in a thermoneutral environment (T<sub>a</sub> 35 °C) consistently resulted in a very low absolute (msf) and relative (percentual msf) flow rates of FFA into BAT. In starving rabbits msF and percentual msF in WAT were consistently lower than in well-fed animals and were even more markedly reduced in animals previously starved in the cold (Ta 20 °C) than in a thermoneutral environment (T<sub>a</sub> 35 °C).
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63
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Schlag B, Winkler L, Grossklaus R. [A simple, easily reproducible process for lipoprotein electrophoresis on cellulose acetate foils]. DAS DEUTSCHE GESUNDHEITSWESEN 1972; 27:1868-70. [PMID: 4634402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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64
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Winkler L, Heim T, Schenk H, Schlag B, Goetze E. The separation of small amounts of free fatty acids from large amounts of neutral fats on Sephadex LH-20. J Chromatogr A 1972; 70:164-7. [PMID: 5050711 DOI: 10.1016/s0021-9673(01)91073-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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65
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Winkler L, Buanga NF, Goetze E. Gas-liquid chromatographic analysis of cardiolipin from fetal and maternal liver of the rat. BIOCHIMICA ET BIOPHYSICA ACTA 1971; 231:535-6. [PMID: 5089696 DOI: 10.1016/0005-2760(71)90122-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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66
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Calderón E, Albuerne A, González S, Winkler L. Cell wall deficient bacteria (L-forms) in meningitis. REVISTA LATINOAMERICANA DE MICROBIOLOGIA 1971; 13:95-100. [PMID: 5288200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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67
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Winkler L, Goetze E. [Influence of adrenaline on maternal and fetal lipid metabolism in pregnant rats]. ACTA BIOLOGICA ET MEDICA GERMANICA 1970; 25:337-342. [PMID: 5510498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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68
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Krebs H, Lazarev VB, Winkler L. �ber Struktur und Eigenschaften der Halbmetalle. XVIII. Die Atomverteilung im fl�ssigen Germanium bei 980 und 1270�C. Z Anorg Allg Chem 1967. [DOI: 10.1002/zaac.19673520510] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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69
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Winkler L. [Changes in free fatty acids in the amniotic fluid, fetal and maternal plasma of rats following total body x-irradiation with 800 R]. ACTA BIOLOGICA ET MEDICA GERMANICA 1966; 17:186-192. [PMID: 5983235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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70
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Winkler L. Die Aktivit�t der Phosphatidase A und der Lysophosphatidase in Placenta, m�tterlicher und foetaler Leber bei tr�chtigen Ratten. Naturwissenschaften 1964. [DOI: 10.1007/bf00625087] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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71
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Winkler L. Die Signaturlehre und deren Arzneimittel. Arch Pharm (Weinheim) 1924. [DOI: 10.1002/ardp.19242620509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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