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
  • 1980-1984  (2)
  • 1975-1979  (1)
  • Electrically evoked response (e.e.r.)  (1)
  • Intrafusal fiber types  (1)
  • Meperidine  (1)
  • 1
    ISSN: 1432-2072
    Keywords: Intravenous infusion ; Body weight loss ; Morphine ; Meperidine ; Physical dependence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An intravenous infusion method is described for rapidly producing physical dependence in rats. Rats were infused with morphine or meperidine for 24 or 48 h at constant rates and the development of physical dependence was assessed by body weight loss after naloxone challenge. Naloxone challenge induced body weight losses that were dependent upon magnitude, rate and duration of infusion. The steady-state concentrations of morphine (4 mg/kg/h) in serum and meperidine (6 mg/kg/h) in plasma were 4 and 2.5 μg/ml, respectively. Morphine concentration in the brain in the steady-state (4 mg/kg/h) was 0.7 μg/g and in the serum was proportional to the infusion rate. Maximum body weight loss was significantly correlated with total amount of infused morphine, but not with the steady-state concentration of the drug in the serum. These results suggest that total doses of infused morphine, not steady-state concentrations, are critical in producing body weight loss.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 216 (1977), S. 79-89 
    ISSN: 1432-1459
    Keywords: Normal muscle spindle ; Histochemistry ; Intrafusal fiber types ; Fusimotor endings ; Fusisensory endings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wurden normale Skeletmuskelspindeln von Menschen histochemisch untersucht. 1. Histochemisch wurden vier Muskelfasertypen der intrafusalen Fasern — Bag I fiber, Bag II fiber, Chain I fiber und Chain II fiber — von ATPase-Aktivität klassifiziert. Bei der NADH-Tetrazolium-Reduktase wurden zwei Muskelfasertypen an intrafusalen Fasern — Bag I fiber und Bag II fiber — beobachtet. 2. Drei Typen der motorischen Endplatte — en plaque Endplatte, en grappe Endplatte und diffuse Endplatte — wurden an Muskelspindeln von Cholinesterase klassifiziert. 3. Zwei Typen der sensorischen Nervenenden — primär-sensorisches Nervenende und sekundärsensorisches Nervenende — wurden an Muskelspindeln mit NADH-Tetrazolium-Reduktase und elektronmiktroskopisch beobachtet.
    Notes: Summary Normal muscle spindles of human skeletal muscle were studied histochemically. 1) Four histochemical types of intrafusal muscle fibers were classified by ATPase stain: Bag I fiber, Bag II fiber, Chain I fiber and Chain II fiber. Moreover, two types of nuclear bag fibers were classified by NADH Tetrazolium Reductase stain and PAS stain: Bag I fiber and Bag II fiber. 2) Three kinds of fusimotor endings were verified by the cholinesterase technic: en plaque, en grappe and diffuse endings. 3) Two kinds of fusisensory endings were verified by NADH TR stain and also electron-microscopically: primary and secondary sensory endings.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 21 (1983), S. 47-50 
    ISSN: 1741-0444
    Keywords: Alternating current stimulation ; Diagnosis of eye diseases ; Electrically evoked response (e.e.r.) ; Electroretinogram (e.r.g.) ; Optimum stimulus frequency ; Pigmentary retinal dystrophy (retinal disease) ; Retinal dystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Alternating current stimulation of the eye generates an occipital electrically evoked response (a.c.-e.e.r.) of which the frequency characteristic shows a monophasic pattern for which the optimum stimulus frequency for evoking a maximum response is 18 Hz. A.C.-E.E.R. is a very useful tool for making a diagnosis of pigmentary retinal dystrophy and is different from the e.r.g. in that it is not affected by diseases of the optical system such as strong refractive anomalies or vitreous opacities.
    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...