Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 22 (1972), S. 183-189 
    ISSN: 1432-0533
    Keywords: β-β′-Iminodipropionitrile (IDPN) ; Axonal Balloons ; Protein Turnover Autoradiography ; H3-Leucine ; Spinal Motoneurons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Autoradiography was performed in order to envisage the turnover of H3-leucin labeled protein in the perikarya of spinal motoneurons and in the axonal balloons formed after repeated administrations of IDPN (β-β′-iminodiproprionitrile) in rats. These results suggested that (1) there was no significant, if any,in situ protein synthesis within the axon balloons, (2) the protein turnover was not appreciably altered in the perikarya of the control and IDPN-intoxicated rats, and (3) the labeled protein collected in the axon balloons seemed to be transported from the perikarya to which they were linked with short axonal segments (30 μ in average length).
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Les vésicules de la NA du nerf splénique de Bœuf ont été obtenues par gradient de centrifugation («sucrose-heavy water»), Le rapport NA/protéine observé est de 4 à 7 fois plus élevé que celui qui a été mentionné précédemment. L'examen préliminaire de cette fraction, par microscopie électronique, révèle une couche importante et pratiquement pure de vésicules à la surface du sédiment.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-1440
    Keywords: Polyacrylamide-gradient gels ; microelectrophoresis ; proteinuria ; glomerulonephritis ; Polyacrylamid-Gradientengele ; Mikroelektrophorese ; Proteinurie ; Glomerulonephritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über die Anwendung der Mikroelektrophorese in Polyacrylamid-Gradientengelen zur Differenzierung der Proteinurie bei Glomerulonephritis berichtet. Die zeitlichen und methodischen Vorteile dieser Elektrophorese erlauben eine routinemäßige Durchführung in der Klinik. Durch die Auftrennung der Urinproteine nach ihrer Molekulargröße und Form lassen sich vier Proteinuriemuster unterscheiden: kleinmolekular, mittelmolekular, intermediär und hochmolekular. Glomerulonephritisformen, die konstante morphologische und klinische Veränderungen zeigen (z.B. minimal proliferierende Glomerulonephritis, mesangioproliferative Glomerulonephritis mit diffuser Halbmondbildung), lassen eine Zuordnung ihrer Proteinurie zu einem der vier Proteinuriemuster zu, während bei den anderen Glomerulonephritisformen (z.B. perimembranöse Glomerulone-phritis, mesangioproliferative Glomerulonephritis) eine Abhängigkeit des Proteinuriemusters von der Glomerulonephritisphase vermutet wird.
    Notes: Summary It is possible to differentiate the proteinuria of glomerulonephritis by means of microelectrophoresis in polyacrylamide-gradient gels. The advantages of this method (quick, cheap, concentration of the urine not required) led to its introduction into clinical use. Upon separating the urinary proteins according to their molecular weight and form, four patterns of proteinuria may be differentiated: low molecular, middle molecular, intermediate and high molecular. Those forms of glomerulonephritis which show constant morphological and clinical findings (e.g. minimal proliferative glomerulonephritis, mesangioproliferative glomerulonephritis with crescents) can be related to one of the four patterns of proteinuria, whereas the pattern of proteinuria in other forms of glomerulone-phritis (e.g. (peri-)membranous glomerulonephritis, mesangioproliferative glomerulonephritis) are dependent on the phase of the disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 39 (1974), S. 483-486 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 248 (1974), S. 401-402 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have been investigating a number of organic compounds in which the e-e interaction is expected to be large. Here we wish to report one of a potentially large class of organic compounds which has 'metallic' electrical properties over a large temperature range. This compound, we believe, is an ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: —Dopamine β-hydroxylase was used as a marker enzyme for sympathetic nerve vesicles which were studied by density gradient technique in bovine splenic nerves. The enzyme analyses were complicated by the occurrence of inhibitors which had to be carefully neutralized with copper. The inhibitor was mainly found in the soluble fraction and no evidence for the occurrence of endogenous inhibitors in the nerve vesicles was obtained.A great variation in density of the dopamine β-hydroxylase containing particles was observed. This was probably mainly due to the variation in vesicle maturation since dopamine β-hydroxylase was distributed more towards the lighter gradient fractions in the proximal nerve segment preparations compared with intrasplenic nerve segment preparations. Noradrenaline/protein and noradrenaline/dopaminc β-hydroxylase ratios were found to be increased about 1·7-fold in the vesicle fraction isolated from the proximal nerve segments to those from the intrasplenic segments. A further increase of the noradrenaline/dopamine β-hydroxylase ratio was observed in a fraction with the same density isolated from the spleen. On the basis of these findings the noradrenaline/protein ratio was calculated to be about 500-600 nmol/mg in the nerve terminal vesicles.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 36 (1971), S. 4113-4116 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 35 (1970), S. 2330-2334 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 28 (1977), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The dopamine β-hydroxylase (DβH) content and activity of large dense-core noradrenergic vesicles purified from bovine splenic nerve were determined using two assay procedures : enzymic activity expressed in Units per mg protein and homospecific activity based on radioimmunoassay expressed in Units per mg DβH antigen. Approximately two-thirds of the total enzyme activity is latent in these vesicles, even after various treatments designed to compromise vesicle integrity. DβH can be completely unmasked by brief treatment with 0.01-0.05% Triton X-100 and activity increases from 0.20 to 0.64 Units per mg vesicle protein. Calculations based on both assay methods suggested that an average of 7% (range 3-15%) of the total vesicle protein was DβH and that the average vesicle contained about 4 molecules of enzyme (range 2-9 molecules). The estimated homospecific activities indicated an average of 25 and 50% (range 18-72%) of the vesicle enzyme was inactive in the various samples using the two antibodies. The vesicle can synthesize up to 30 molecules of noradrenaline/s per molecule of DβH at near optimal substrate concentration, and 60-270 molecules of norepinephrine/s per vesicle. The assumptions used in the various calculations were critically analyzed and, based on the methods employed, it is tentatively considered to be unlikely that there could be more than 5-12 molecules of DβH per vesicle. The possibility that circulating DβH originates primarily, if not exclusively, from the large dense-core vesicle type is considered and the functional implications of the data support the concept of vesicle reuse during several cycles of exocytosis involving a quantal size equal to a fraction of the vesicle transmitter content.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    facet.materialart.
    Unknown
    Baltimore : Periodicals Archive Online (PAO)
    Human Biology. 51:3 (1979:Sept.) 371 
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...