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
    Naunyn-Schmiedeberg's archives of pharmacology 285 (1974), S. 175-184 
    ISSN: 1432-1912
    Keywords: Fenfluramine ; Rat ; Guinea Pig ; Phospholipidosis, drug-induced ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary After administration of the anorectic drug fenfluramine (40 mg/kg per day) to rats (s. c. or i. p.) and guinea pigs (p.o.) over periods of 2 to 11 weeks, electron microscopic examination was performed on lungs, liver, lymphatic tissues and peripheral blood of both species, and on adrenal glands and ovaries of rats. In rats, fenfluramine caused the following alterations (listed according to the duration of treatment): Formation of abnormal lamellated inclusions in lymphocytes and plasma cells of lymphatic tissues, appearance of “foam cells” in lung alveoli; formation of abnormal lamellated inclusions in corpus luteum, lymphocytes of peripheral blood, and in adrenal cortex. In guinea pigs, the same alterations were found in lymphocytes of spleen and peripheral blood, in hepatocytes and in lung. The present observations support the concept of a generalized phospholipidosis induced by amphiphilic compounds. The potency of fenfluramine to induce a lipidosis is, however, considerably less pronounced than that previously demonstrated for the anorectic drug chlorphentermine. This difference is suggested to be due mainly to the lower degree of amphiphilia of fenfluramine.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1433-8580
    Keywords: Chlorphentermine ; Foam cells ; Intracellular inclusion bodies ; Amphiphilic drugs ; Drug induced phospholipidosis ; Chlorphentermin ; Schaumzellen ; Intracelluläre Einschlußpartikel ; Amphiphile Pharmaka ; Pharmakoninduzierte Phospholipidosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In der vorliegenden Arbeit sollte geklärt werden, inwieweit die von Chlorphentermin bekannten morphologischen Veränderungen der Rattenlunge Tier- und Organspezifität besitzen. In einer lichtmikroskopischen Untersuchung an Versuchstieren (Ratten, Meerschweinchen, Mäusen und Kaninchen) konnten in Lunge, Leber, Milz und Nebenniere der einzelnen Species Schaumzellen und intracelluläre Einschlußkörper nachgewiesen werden, die ein allgemeines pathogenetisches Prinzip darstellen, das weder art- noch organspezifisch ist. Gleichartige Veränderungen sind auch nach Triparanol, Chloroquin und 4/4′-Diäthylaminoäthoxyhexöstrol beschrieben worden. Diese Befunde lassen an einen pathophysiologischen Mechanismus denken, der wahrscheinlich auf dem gemeinsamen amphiphilen Charakter dieser Substanzen beruht. Es ist denkbar, daß die amphiphilen Moleküle mit den Phospholipiden eine Bindung eingehen und dadurch deren enzymatischen Abbau behindern. Die durch Chlorphentermin induzierte Phospholipidose ist nicht an eine bestimmte Arzneimittelgruppe gebunden.
    Notes: Summary The present study was designed to investigate whether or not the well known morphological alterations produced by chlorphentermine are limited only to rat lung. By means of light microscopy the existence of foam cells and intracellular inclusion bodies could be demonstrated in several organs (lung, liver, spleen and adrenals) of different animals (rats, guinea-pigs, mice and rabbits). These findings suggest a chlorphentermine-induced general pathological phenomenon, neither limited to certain species nor to particular organs. Similar observations have been reported for chloroquine, triparanol and 4/4′-diethylaminoethoxyhexestrol. Therefore these results may indicate that the structural alterations are due to the common amphiphilic properties of chlorphentermine and the above drugs. These substances are proposed to interact with phospholipids thus protecting them against lipase degradation activity. This drug-induced phospholipidosis is not limited to a specific group of drugs.
    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...