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
    ISSN: 1434-4726
    Keywords: Key words Skin expansion ; Procollagen mRNA ; In ; situ hybridization ; Animal models
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To evaluate the transcriptional response of skin to tissue expansion in the dog, the expression of procollagen α1(I) mRNA and procollagen α1(III) mRNA were analyzed by in situ hybridization. This expression was evaluated in distinct skin areas (subepidermal zone, dermis, capsular zone) after 4–85 days of expansion. Within the first 4 days of expansion expression of procollagen α1(I) and α1(III) mRNA was not affected in the subepidermal and dermal zone. Only a slightly elevated level of type III procollagen mRNA was demonstrated in tissue surrounding the implanted silicone expander. After 7 days of expansion an enhanced level of procollagen α1(III) mRNA was observed in the dermis and capsular zone. A slightly enhanced type I collagen mRNA level occurred in all zones of the dermis that was even stronger in the capsular zone after 9 days of expansion. Concurrently, the number of transcriptionally active cells was significantly higher. Return to the basal level of procollagen α1(I) mRNA was attained after 40 days. At this time a significant expression of procollagenase mRNA was observed. Procollagen III mRNA expression reached its basal level on day 85.
    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
    European archives of oto-rhino-laryngology and head & neck 252 (1995), S. 475-477 
    ISSN: 1434-4726
    Keywords: Tissue expansion ; Skin ; Procollagen mRNA ; Northern blot analysis ; Canine animal model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Experimental tissue expansion was performed in nine dogs following placement of subcutaneous silicone balloons. The balloon expander was then filled with 300 ml saline immediately after implantation. Duration of expansion varied from 3 days to 124 days. Unaffected skin and skin over an empty expander served as control tissue. Dermal procollagen I and procollagen III gene expression in response to tissue expansion was investigated by dot-blot analysis using digoxigenin-labeled RNA probes complementary to either human procollagen-al (I) mRNA or procollagen-a1 (III) mRNA. Cross-hybridization of human probes with canine procollagen mRNA was demonstrated by Northern blot analysis. In response to the trauma of surgery, procollagen I and III mRNA transcriptions were found to be decreased significantly within the first few days after implantation. After 9 days of expansion, increased levels of procollagen I mRNA were found, while after 16 days increased levels of procollagen III mRNA were evident. The present study is the first to demonstrate changes in dermal collagen gene expression as a reaction to tissue expansion.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1435-1285
    Keywords: Key words Cardiac allograft vasculopathy – risk factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary For assessing clinical events associated with cardiac allograft vasculopathy, parameters relating to nonimmunological or immunological risk factors, epicardial coronary vessels, microvasculature, or left ventricular function may be utilized.
    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
    Zeitschrift für Kardiologie 86 (1997), S. 788-802 
    ISSN: 1435-1285
    Keywords: Key words Cardiac pump function – proinflammatory cytokines ; Schlüsselwörter Kardiale Pumpfunktion – proinflammatorische Zytokine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In situations of depressed myocardial function, the role of immunological mechanisms has been studied recently. In different pathophysiological situations, such as chronic heart failure, open heart surgery with extracorporal circulation, cardiac transplantation, myocardial infarction and angina pectoris, patterns have been described with elevation of proinflammatory cytokines, such as tumor necrosis factor-α, interleukin-1, interleukin-6, and reversible myocardial dysfunction, which may represent a final common pathway. The available data suggest a modulation of important determinants of pump function, i.e., contractility, preload, afterload, and heart rate, by cytokines. Potential mechanisms include the β-adrenoceptor- and nitric oxide pathway, as well as a direct impact on intracellular calcium homeostasis. Interventional strategies based on this understanding are beginning to emerge.
    Notes: Zusammenfassung Die Beteiligung immunologischer Mechanismen bei Krankheitsbildern mit Störung der kardialen Pumpfunktion ist in den letzten Jahren verstärkt in den Vordergrund gerückt. In verschiedenen pathophysiologischen Situationen wie Herzinsuffizienz, Herzoperation, Herztransplantation, Herzinfarkt und Angina pectoris wurden Muster mit Erhöhung von proinflammatorischen Zytokinen wie Tumor-Nekrose-Faktor-α, Interleukin-1 und Interleukin-6 und reversibler kardialer Dysfunktion beschrieben, die möglicherweise Ausdruck einer gemeinsamen biologischen Endstrecke sind. Dabei legen die verfügbaren Daten eine Beeinflussung wichtiger Determinanten der Pumpfunktion, d.h. von Kontraktilität, Vorlast, Nachlast und Herzfrequenz, durch Zytokine nahe. Mögliche Mechanismen schließen den β-Adrenozeptor-Weg, den Stickstoff-Monoxid-Weg sowie eine direkte Wirkung auf die Kalzium-Homoöstase ein. Therapeutische Konzepte, die auf diesem neuen Verständnis basieren, stehen am Anfang der Entwicklung.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 273 (1993), S. 381-389 
    ISSN: 1432-0878
    Keywords: Vigilin ; Cartilage ; Bone ; Differentiation ; In-situ hybridization ; Chicken
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The expression of vigilin was followed during chick embryonal development by in situ hybridization. Vigilin mRNA is abundantly expressed in tissues of mesenchymal and ectomesenchymal origin. The mesenchymal primordial cells of cartilage and bone did not show any significant, expression of vigilin. As tissue differentiation proceeded, vigilin mRNA levels increased in hyaline cartilage and in both endochondral as well as intramembranous bone. The results suggest that the expression of vigilin mRNA in cartilage- and bone-forming cells chondrocytes and osteobalsts, is dependent on the stage of development and cellular differentiation, although not a unique process of bone formation. Most striking is the correlation of the maximum vigilin mRNA expression in osteoblasts and hypertrophic chondrocytes to periods when cell-specific genes were highly transcribed and substantially translated, e.g., synthesis of procollagen and formation of extracellular matrix in bone and cartilage.
    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...