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
    Calcified tissue international 35 (1983), S. 294-297 
    ISSN: 1432-0827
    Keywords: Prostaglandins ; Osteoblasts ; Bone resorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary The metabolism of arachidonic acid to its cyclo-oxygenase products was studied in monolayer cultures of osteoblast-rich rat calvarial cells and of clonal cell lines from a rat osteogenic sarcoma, enriched in the osteoblast phenotype. Prostanoids were measured by radioimmunoassay after extraction of media and fractionation by high pressure liquid chromatography. In both normal and malignant osteoblasts the major cyclo-oxygenase product was 6-oxo-prostaglandin F1α, the hydration product of prostacyclin, with lesser amounts of prostaglandin E2 and prostaglandin F2α. No significant thromboxane B2 was detected. Prostaglandins are thought to have a local role in the regulation of bone resorption. These results point to the possible importance of prostacyclin either in bone resorption or in some other local function, e.g., regulation of bone blood flow.
    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
    Langenbeck's archives of surgery 349 (1979), S. 59-62 
    ISSN: 1435-2451
    Keywords: Chemotherapy ; Specific immune sera ; Immune stimulation ; Bacterial virulence ; R-factors ; Chemotherapie ; Spezifische Immunseren ; Immunstimulation ; Bakterielle Virulenzeigenschaften ; R-Faktoren
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die antibakterielle Chemotherapie befindet sich heute in einem Circulus vitiosus: Neue resistente Bakterien erscheinen fast so schnell wie neue Chemotherapeutica oder Antibiotica in die Chemotherapie eingeführt werden. Zur Lösung dieses Problems werden neue Konzepte benötigt, da bereits die ursprüngliche Idee der Chemotherapie mit dem Prinzip der Selektion resistenter Varianten verbunden ist. Eine durchgreifende Besserung der Situation in der antibakteriellen Chemotherapie ist deshalb nur von neuen Lösungen zu erwarten, von denen einige hier diskutiert werden: 1. Die Anwendung von Immunseren mit Antikörpern gegen rudimentäre LPS-Strukturen bei Gram-negativer Septikämie. 2. Die Entwicklung von Medikamenten, welche die Wirtsabwehr stimulieren. 3. Die Erfindung und Entwicklung pharmakologischer Methoden, mit denen man Virulenzeigenschaften von Bakterien abschwächen kann. 4. Die Entwicklung von Substanzen, die gegen die existierenden R-Faktoren selektieren.
    Notes: Summary Antibacterial therapy has today entered a vicious circle in which new resistant bacterial variants appear as rapidly as new substances are introduced for treatment. Since a strong selection element is inherent in the very concept of chemotherapy, the problems ahead will probably not be solved by enhancing the classical lines of chemotherapeutic research. Alternatives are, therefore, offered which avoid some disadvantages of classical chemotherapy. The most promising of these novel approaches are: 1. The use of immune sera with antibodies directed against LPS-“core” structures of gram-negative bacilli. 2. The development of drugs which stimulate host defenses. 3. The design and development of pharmacological methods to interfere with virulence properties of bacteria. 4. Pharmacological methods to discriminate against R-factor carrying bacteria.
    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...