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
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 10 (1983), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A rare case of cutaneous invasion of a malignant mesothelioma of the tunica vaginalis testis is described in a 86-year-old man. There was no anamnestic evidence of asbestos exposure.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In a multicentre double-blind trial the effect of three therapy regimens was studied for 6 weeks in ninety psoriasis patients:(1) aromatic retinoid (Ro 10-9359) orally (0.50-0.66 mg/kg body weight) and placebo cream topically;(2) aromatic retinoid (Ro 10-9359) (same dosage) with 0.1% triamcinolone acetonide and 5% salicylic acid in lanette wax cream;(3) placebo capsules with 0.1% triamcinolone acetonide and 5% salicylic acid in lanette wax cream.Regimen 1 had virtually no effect and regimen 2 gave better results than regimen 3 for almost ail parameters, although statistical significance was reached for only some of them.The 6 week double-blind period was followed by an open study in which all patients were treated according to regimen 2. The clinical result could be maintained up to the end of the study (18 weeks), when more than 60% of the patients showed good to excellent (80–100%) improvement. Most of the patients had dry lips, but generally without clinical symptoms of a cheilitis. The other well-known side-effects of retinoid were mild and relatively rare.It is concluded that the combination of the aromatic retinoid (Ro 10-9359) given in low dosage orally with corticosteroids topically is as effective as therapy with the retinoid in high dosage alone, but with markedly less side-effects.
    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
    Archives of dermatological research 263 (1978), S. 13-21 
    ISSN: 1432-069X
    Keywords: Subcutaneous ; Granulomas ; Langhans giant cells ; Foreignbody giant cells ; Subcutan ; Granulome ; Langhans-Riesenzellen ; Fremdkörper-Riesenzellen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Granulome wurden bei Ratten durch subcutane Einpflanzung von Melinex-Plastik-Plättchen im Rücken erregt. Die Melinex-Plättchen wurden mit Zwischenräumen, variierend von 16 h bis zu 14 Tagen, entfernt und die anhaftenden Zellen wurden sowohl morphologisch als quantitativ untersucht. Das Entstehen von Riesenzellen fing 32 h nach Einpflanzung an. Die zuerst erscheinenden Riesenzellen waren vom Langhans-Typus. 2 Tage nach Einpflanzung sind die meisten Riesenzellen noch Zellen vom Typus Langhans; einige wenige Riesenzellen vom Fremdkörper-Typus und Übergangsformen zwischen Langhans-und Fremdkörper-Typus sind auch anwesend. Vom 3. Tag an werden Riesenzellen vom Fremdkörper-Typus allmählich vorherrschend. Außerdem wurde festgestellt, daß, unabhängig von der Dauer der Einpflanzung, Riesenzellen mit 3, 4 oder 5 Kernen praktisch ohne Ausnahme vom Langhans-Typus sind. Je höher die Zahl der Kerne zwischen 6 und 30 ist, desto mehr Zellen Riesenzellen vom Fremdkörper-Typus sind. Riesenzellen mit 30 oder mehr Kernen sind alle Riesenzellen vom Fremdkörper-Typus. Die Resultate der Untersuchung sind besprochen worden im Lichte der heutigen Kenntnisse in bezug auf die Bildung von Riesenzellen. Die Schlußfolgerung wird gezogen, daß unter den gegebenen experimentellen Bedingungen Riesenzellen vom Langhans-Typus die Vorläufer von Riesenzellen vom Fremdkörper-Typus sind.
    Notes: Summary Granulomas were induced in rats by subcutaneous implantation of pieces of Melinex plastic into the dorsum. The pieces of Melinex were removed at intervals varying from 16 h to 14 days, and the adherent cells were studied morphologically and quantitatively. Giant cell formation started about 32 h after implantation. The first giant cells to appear were of the Langhans type. Two days after implantation, most of the giant cells are still Langhans-type cells. A few giant cells of the foreign-body type and transition forms between the Langhans and foreign-body types are also present. From the third day on, the foreign-body type gradually becomes predominant. Independent of the duration of implantation, giant cells with 3, 4, or 5 nuclei are virtually without exception of the Langhans type. The higher the number of nuclei between 6 and 30, the more cells are of the foreign-body type. Giant cells with 30 or more nuclei are all foreign-body type. The findings are discussed in the light of current knowledge concerning giant cell formation. It is concluded that under the present experimental conditions, Langhans-type giant cells are the precursors of foreign-body-type giant cells.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 185 (1977), S. 1-16 
    ISSN: 1432-0878
    Keywords: Monocyte (Rat) ; Type of granules ; Peroxidase ; Catalase ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Rat blood monocytes contain granules of two types, primary and secondary granules, which can be distinguished on morphological grounds. Secondary granules have a halo between the limiting membrane and the matrix; primary granules have no halo and are generally more elongate than the secondary granules. In addition, there are differences in the distribution of the diameters of these two types of granules. The cytochemical characteristics of the peroxidatic activity of these granules were investigated by using different prefixation conditions in combination with a number of DAB media differing in pH and H2O2 concentration. Prolongation of the prefixation and increasing the pH of the incubation medium increased the staining intensity of the secondary granules and decreased the staining intensity of the primary granules. In unfixed cells peroxidatic activity could be demonstrated only in the primary granules. It is concluded from the present findings that peroxidase occurs in primary granules and not in secondary granules, whereas catalase is present in secondary granules but probably not in primary granules. No evidence was found for the presence of microperoxisomes in rat blood monocytes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-0878
    Keywords: Peroxidatic activity ; Monocytes ; Macrophages ; Epithelioid cells ; Multinucleated giant cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The peroxidatic (PO) activity of monocytes differentiating into macrophages, epithelioid cells, and multinucleated giant cells in subcutaneous granulomas was investigated with three different media for the demonstration of PO activity. Irrespective of the stage of differentiation, these cells did not show PO activity in the rough endoplasmic reticulum (RER) or nuclear envelope. In addition, it was found that the morphologically characteristic types of granule of the various cells of the monocyte line (the primary granules and secondary granules of monocytes, the macrophage granules, and the epithelioid cell granules), all have distinct cytochemical characteristics. Monocytes lose their primary and secondary granules during differentiation into mature macrophages. Simultaneously, the granules of both types become elongated and the secondary granules lose their halo. In contrast to monocytes, mature macrophages may contain a few microperoxisomes. During the differentiation of macrophages into epithelioid cells or multinucleated giant cells there is an increase in the number of microperoxisomes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-0878
    Keywords: Monocytes ; Macrophages ; Epithelioid cells ; Multinucleated giant cells ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The morphological changes occurring in monocytes during their differentiation into macrophages, epithelioid cells, Langhans-type giant cells, and foreign-body-type giant cells were investigated in foreign-body granulomas induced by subcutaneous implantation of pieces of Melinex plastic. Analysis based on Adams's (1974) criteria for discrimination between the several types of cell of the monocyte line, showed that each type has a characteristic type of granule. Primary and secondary granules, numerous in the Golgi area of monocytes were generally found close to the cell membrane and decreased in number in maturing macrophages. This was accompanied by an increase in the number of microtubules. Mature macrophages show numerous characteristic macrophage granules, which are round (average diameter: 280 nm) and have a halo between the limiting membrane and granular matrix. Mature epithelioid cells have characteristic epithelioid cell granules, and multinucleated giant cells a heterogeneous population of granules. Fusing macrophages generally have their Golgi areas facing each other, and also show a reduced thickness of the cell coat. The morphology of the multinucleated giant cell is closely related to the number of nuclei present. In Langhans-type giant cells, which generally have two to ten nuclei, a giant centrosphere with numerous aggregated centrioles is found. In transition forms between Langhans-type and foreign-body-type giant cells, which generally contain 10–30 nuclei, the centrioles show less aggregation. In the foreign-body-type giant cells, which generally have more than 30 nuclei, centrioles are virtually absent and never aggregated. These differences between the Langhans-type giant cells, the foreign-body-type giant cells, and the transition forms, support our previous finding that Langhans-type giant cells are the precursors of foreign-body-type giant cells.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1432-0878
    Keywords: Peroxidatic activity ; Macrophages ; Multinucleated giant cells ; Skin ; Peritoneal cavity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Inflammatory reactions were evoked by simultaneous implantation of pieces of Melinex plastic in the subcutaneous tissues of the dorsum and in the peritoneal cavity of rats. The cellular composition of the Melinex-adherent cells and their peroxidatic (PO) activity were investigated in relation to the duration of implantation. Several striking differences were found between the subcutaneous and peritoneal implants. On the 7th and 14th days, multinucleated giant cells were abundantly present on the subcutaneous implants, whereas they were relatively rare on the peritoneal implants. The subcutaneous implants bore no mast cells and only a few eosinophilic granulocytes, but both types of cell were observed frequently on the peritoneal implants. Macrophages and multinucleated giant cells on the subcutaneous implants show PO activity only in the granules or are PO negative. On the peritoneal implants three types of macrophages can be distinguished: exudate macrophages which have PO activity restricted to granules or are PO-negative; macrophages with PO activity in granules and both the rough endoplasmic reticulum (RER) and nuclear envelope; and resident macrophages with PO activity only in the RER and nuclear envelope. In addition, two types of multinucleated giant cells are found, one with and the other without PO activity in the RER and nuclear envelope. Multinucleated giant cells with PO activity in the RER and nuclear envelope as well as exudate macrophages with PO activity in the RER and nuclear envelope were mainly found 32 h and 3 days after implantation of the Melinex in the peritoneal cavity. These findings are discussed in the light of current knowledge of the PO activity in macrophages and multinucleated giant cells. It is concluded that the appearance of PO activity in the RER and nuclear envelope of exudate macrophages and multinucleated giant cells is in all probability a transient phenomenon, and that there is no objective evidence to support the opinion that exudate macrophages with PO activity in the RER and nuclear envelope are transitional cells between exudate and resident macrophages.
    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...