Bibliothek

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • 1990-1994  (1)
  • 1975-1979  (3)
Materialart
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 32 (1979), S. 0 
    ISSN: 1471-4159
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The uptake of the neurotransmitter candidates glutamate and aspartate into synaptosomes and bulk-isolated glia was considerably more rapid than the uptake of the suspected transmitter-precursor glutamine at low concentrations (10 μM). Glial uptake in all cases was one-fifth to one-third of synaptosomal, whereas isolated neurons attained very low tissue: medium ratios, probably reflecting damage to the neurons sustained during isolation. The glial and synaptosomal uptakes of glutamate both obeyed dual high- and low-affinity kinetics and were negligible in the absence of external sodium, whereas glutamine was taken up in either case by an exclusively low-affinity transport system exhibiting no sodium-dependence. Glutamine was considerably metabolized to glutamate following transport by both glia and synaptosomes whereas glutamate remained unmetabolized
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 28 (1977), S. 0 
    ISSN: 1471-4159
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract— The enzyme in rat brain responsible for the de-acetylation of N-acetyl-aspartic acid has been partially purified. In contrast to the enzyme from hog kidney which is stable at 70°C, it rapidly denatures above 57°C. The rat brain enzyme has the same Km for its substrate and the same solubility in ammonium sulphate solution as the hog kidney enzyme. Results of migration on starch gel electro-phoreses and isoelectric focusing indicate a pI for the amidohydrolase of 5.1. A variety of potential substrates, modulators, and inhibitors have been examined.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Intensive care medicine 19 (1993), S. S40 
    ISSN: 1432-1238
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Surprisingly little is known about the use of neuromuscular blockers (NMBs) in intensive care units (ICUs) in the USA. Recently, Klessig et al. [1] surveyed anesthesiologists/intensivists in the USA and found that the 55% who responded used NMBs in the ICU in an average of 10 patients per ICU per month. Anxiolytics and analgesics were administered concomitantly with NMBs, but a majority of respondents did not use electrophysiologic measures of the degree of blockade. Another survey of predominantly medical ICUs also demonstrated widespread use of NMBs, but internists did not use sedation/analgesia as frequently as anesthesiologists for patients receiving NMBs, and infrequently monitored the degree of neuromuscular blockade [2]. Because these were retrospective surveys, we decided to monitor prospectively the use of NMBs in our ICUs. The use of NMBs was ascertained by daily review of pharmacy records and, when use was documented, the patients hospital records were reviewed. Where information was missing or not found, attending physicians were interviewed. On averages, one patient per month per ICU received NMBs. Approximately 5% of neonatal and pediatric, and 1% of adult, ICU patients received NMBs. Eighty-three percent of patients received NMBs to facilitate mechanical ventilation, and mortality was high (51%) in those critically ill patients. More than half the patients were treated for ≤24 h, the remainder for 2 days to 〉3 weeks. Twitch monitors were used for monitoring the degree of neuromuscular blockade in adult patients, and all patients received sedatives/analgesics. We estimated that the risk of clinically significant, prolonged neuromuscular blockade following the discontinuation of NMBs was 5% per year. Our data demonstrate that NMBs in our practice are used less frequently than previous surveys indicate, that it is possible to change behavior with respect to the use of monitors of neuromuscular treatment, and that clinically significant prolonged blockade was an infrequent but serious problem in this population of critically ill patients.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    ISSN: 1573-4927
    Schlagwort(e): evolution ; polyploidy ; ribosomal RNA genes ; Isospondyli
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Phylogenetically tetraploid species of the fish order Isospondyli generally have twice the mean ribosomal gene content as closely related species on the phylogenetically diploid level. Considerable intraspecific variation of rDNA amount was observed. These findings are discussed in view of the hypothesis that selective loss of ribosomal genes may account for diminishing genic activity in phylogenetically tetraploid organisms.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...