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
Filter
  • 1970-1974  (2)
  • 1973  (2)
Material
Years
  • 1970-1974  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 34 (1973), S. 73-77 
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary L-dopa or phenylalanine was injected intraperitoneally into immature rats. Brain samples fixed and embedded by conventional methods were sectioned for electron microscopic study. In contrast to chemical evidence in the literature for disaggregation of brain polysomes in fractions of whole brain from animals so treated, we found no ultrastructural evidence of disaggregation in either neurons or glial cells. The fact that we and others have observed polysome disaggregation in electron micrographs of sections from other types of animal experiments suggests that our observation of stable polysomes in the present work is not the result of technical artifact, and that the disaggregation observed in brain fractions by others had probably not occurred in their intact animals. It is unlikely that the behavioral and physiological changes occurring in patients treated with L-dopa can be correlated with the state of aggregation of brain polyribosomes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Protoplasts from cell suspension cultures of Vicia hajastana Grossh., soybean (Glycine max L.) and brome grass (Bromus inermis Leyss.) were tightly agglutinated by immune sera prepared against them in rabbits. After incubation, the aggregated protoplasts became adpressed over a considerable area of their surface. Antibody prepared against Vicia protoplasts agglutinated both Vicia and soybean protoplasts alone, as well as a mixture of the two. Soybean and bromegrass antibody likewise cross-reacted with and agglutinated Vicia protoplasts. The heterologous reactions were nearly as strong as, and in some cases stronger than, the homologous. When sheep anti-rabbit globulin was reacted with a mixture of the protoplasts previously coated with homologous antibody, agglutination occurred much more quickly and the aggregates could not be dispersed without physical damage. Carbol-fuchsin staining of nuclei showed that Vicia and soybean protoplasts were randomly mixed in the aggregate. The protoplasts were viable and underwent division after the antibody treatment. The immune serum, which presumably contained complement, lysed the protoplasts unless it was heat-treated prior to use.
    Type of Medium: Electronic Resource
    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...