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
  • Akute und subchronische Vergiftung  (1)
  • Atomic absorption spectrophotometry  (1)
  • 1
    ISSN: 1432-0738
    Keywords: Diisopropylfluorophosphate ; Acute and Chronic Poisoning ; Therapy with Obidoxime ; Reactivation of Cholinesterase in Various Tissues ; Diisopropylphosphorofluoridat ; Akute und subchronische Vergiftung ; Therapie mit Obidoxim ; Reaktivierbarkeit der ChE verschiedener Gewebe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An Meerschweinchen wurde der zeitliche Verlauf der ChE-Hemmung in Erythrocyten, Ventrikelmuskulatur und Gehirn bei subchronischer und akuter DFP-Vergiftung untersucht und die Reaktivierbarkeit der ChE dieser Gewebe nach subcutaner Injektion von Obidoxim geprüft. Bei beiden Vergiftungsarten ergaben sich Unterschiede hinsichtlich des Ausma\es und des zeitlichen Verlaufes der ChE-Hemmung zwischen den drei Geweben. Während der subchronischen Vergiftung durchläuft die ChE-Hemmung bei den Erythrocyten ein Maximum, bei der Ventrikelmuskulatur und dem Gehirn hingegen stellt sie sich kumulativ auf einen Endwert ein. — Die ChE des Gehirns werden durch Obidoxim weder bei der subchronischen noch bei der akuten Vergiftung reaktiviert. Die Reaktivierbarkeit der Erythrocyten-ChE ist bei beiden Vergiftungsarten wesentlich besser als die der ChE in der Ventrikelmuskulatur. Letztere können durch Obidoxim nur innerhalb eines kürzeren Zeitraumes reaktiviert werden als die der Erythrocyten.
    Notes: Summary The time course of inhibition of cholinesterase (ChE) was studied in erythrocytes, ventricular muscle and brain of guinea pigs during chronic and acute poisoning with DFP. The reactivation of ChE in these tissues following subcutaneous injection of obidoxime was also tested. In both kinds of poisoning, considerable differences in degree and time course of ChE-inhibition were observed in the three types of tissue studied. Whereas the ChE-inhibition in erythrocytes achieved a maximum and then subsided, there was a cumulative increase of inhibition leading to a maximal value which was maintained in both ventricular muscle and brain. The ChE of the brain could not be reactivated by obidoxime in either chronic or acute poisoning. In both types of poisoning, the reactivation of ChE in erythrocytes was substantially better than in cardiac muscle. The reactivation by obidoxime in the latter tissue was of shorter duration than in erythrocytes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1076
    Keywords: Zinc ; Hair ; North Rhine-Westphalia ; Atomic absorption spectrophotometry ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hair zinc levels were estimated by atomic absorption spectrophotometry in 474 children, aged 3–7 years, from 11 kindergartens in a highly industrialized and polluted area (Duisburg) and 8 kindergartens in a rural area of North Rhine-Westphalia. The mean hair zinc level amounted to 118 μg/g, increasing between the 4th and 7th year of life. At all ages the values from the urban toddlers were lower than from rural toddlers, and in both regions they were higher in winter than in summer. Children with frequent upper respiratory tract infections (〉6 infections/year) showed significantly lower zinc hair values, independent of their age. Low hair zinc values (below 70 μg/g) were frequently found, raising the question as to whether this is a normal, age-related phenomenon, or whether it indicates a suboptimal zinc status of young children from North Rhine-Westphalia.
    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...