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
  • 1,25-Dihydroxycholecalciferol  (1)
  • Adhesion molecules  (1)
  • Antikonvulsive Medikamente  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 278 (1973), S. 435-440 
    ISSN: 1432-1912
    Keywords: Diphosphanates ; Vitamin D Metabolism ; 25-Hydroxycholecalciferol ; 1,25-Dihydroxycholecalciferol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The application of disodium dichloromethylene diphosphonate (Cl2MDP), a diphosphonate which is known to inhibit bone formation and bone destruction leads to changes in the metabolism of 25-Hydroxycholecalciferol. The concentration of the tissue active form of vitamin D, i.e. 1,25-Dihydroxycholecalciferol, was found to be markedly diminished in blood serum, kidney and intestine. It is discussed whether this finding is due to a direct effect of Cl2MDP on 25-Hydroxycholecalciferol-1-hydroxylase in the kidney or indirectly caused by a disturbance of the regulation of 1,25-Dihydroxycholecalciferol production.
    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
    Research in experimental medicine 158 (1972), S. 194-204 
    ISSN: 1433-8580
    Keywords: Vitamin D ; Osteomalacia ; Anticonvulsant drugs ; Calcium retention ; Whole body counter ; Vitamin D-Stoffwechsel ; Osteomalacie ; Antikonvulsive Medikamente ; Calcium-Retention ; Ganzkörperzähler
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wurden der Stoffwechsel und die Organverteilung von doppelt-markiertem Vitamin D3 (1,2-3H-4-14C-Cholecalciferol) an Ratten untersucht, die entweder mit Phenobarbital (PB) oder Diphenylhydantoin (DPH) behandelt waren. Während die DPH-behandelten Ratten ein Stoffwechselmuster und eine Organverteilung ähnlich den Normaltieren aufwiesen, hatten die mit PB behandelten Ratten am 3. Untersuchungstag eine höhere Konzentration von 25-Hydroxycholecalciferol im Serum und am 10. Tag der Untersuchung eine im Vergleich zu den Normaltieren und DPH-Ratten erniedrigte Radioaktivität in der Leber und Niere. Da jedoch die Calcium-Retention nicht nur in der PB-Gruppe, sondern auch in den DPH-Tieren erniedrigt gefunden wurde, kann derzeit noch nicht entschieden werden, ob die bei Epilepsiekranken nachweisbaren vorwiegend osteomalacischen Knochenveränderungen durch eine Störung des Vitamin D-Stoffwechsels verursacht werden.
    Notes: Summary The metabolism and the organ distribution of double-labelled vitamin D3 (1,2-3H-4-14C-cholecalciferol) has been investigated in rats receiving either phenobarbital (PB) or diphenylhydantoin (DPH). Whereas the DPH-treated rats showed a metabolic pattern and organ distribution comparable to the control animals, the PB-treated rats had a greater amount of radioactivity (mainly as 25-Hydroxycholecalciferol) in their serum at 3 days, and at 10 days they showed a reduced concentration of radioactivity in their liver and kidney. As the retention of47calcium was not only decreased in the PB-group but as well in the DPH-group, which showed an almost normal handling of the injected vitamin D3, it remains speculative, as to whether or not the PB-induced alterations in the metabolism of vitamin D are responsible for the reported occurence of osteomalacic bone disease in patients treated by anticonvulsants.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1434-4726
    Keywords: Mononuclear cells ; Adhesion molecules ; Cellular distribution ; Squamous cell carcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The expressions and cellular distributions of two pairs of adhesion molecules CD2/LFA-3 (leukocyte function-associated antigen-3) and LFA-1/ICAM-1 (intercellular adhesion molecule-1) were examined in inflammatory cellular infiltrates of advanced squamous cell carcinomas of the head and neck by immunohistochemical techniques including double-staining methods. Thirteen patients were investigated using the following monoclonal antibodies (mAbs): CD2, LFA-3 (CD58), ICAM-1 (CD54), LFA-1 (CD11a), the alpha/beta and gamma/delta T-cell receptor, pan T cells and broadly distributed monocyte/macrophage (m/mø) [Fc gamma RII (CD32), 25F9, RM3/1]. LFA-3 staining was observed on a high number of cells (968 ± 112 cells/mm2), correlating to the number of Fe gamma RII (CD32; P 〈 0.01), 25F9 (P 〈 0.05) and RM3/1 (P 〈 0.05) positive m/mø. Its ligand CD2 was found on 365 ± 126 cells/mm2, representing about 50% of CD3+ cells (730 ± 286 cells/mm2). CD2 positivity correlated to CD3 and CD8 (P 〈 0.01) but not to CD4+ T cells. LFA-1 and ICAM-1 were expressed on lymphocytes as well as on m/mø. ICAM-1+ cells (902 ± 205 cells/mm2) correlated to CD3+, CD8+ and RM3/1+ cells (P 〈 0.01). LFA-1 positivity (803 ± 255 cells/mm2) showed correlations to nearly all investigated antigens, as well as to CD4+ T cells (P 〈 0.05). These results show that different m/mø subsets display distinct patterns of adhesion molecule expressions suggesting different pathways of regulation. The CD3+ lymphocyte population revealed a lack of CD2 expression that was more pronounced in the CD4+ subset and indicated impaired lmyphocyte function.
    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...