Bibliothek

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Materialart
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK; Malden, USA : Blackwell Science Inc
    Wound repair and regeneration 13 (2005), S. 0 
    ISSN: 1524-475X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Cutaneous wound healing is a complex process that leads to the formation of a permanent scar in adult skin. In contrast, early gestation fetal skin undergoes scarless repair. Normally, the repair process in the skin begins with an acute inflammatory response. However, one of the most important aspects of scarless fetal wound repair appears to be a lack of inflammation, suggesting that inflammation promotes scar formation in the skin. While it is well accepted that inflammation causes scar formation in the fetus, it is not known what specific factors produced during inflammation are responsible for these effects. Oxidants released by activated inflammatory cells have the potential to be involved, although this has never been examined. The present studies, using a murine fetal wound repair model, show that hydrogen peroxide interferes with scarless healing, possibly through the induction of transforming growth factor-β1. Hydrogen peroxide also increased the proliferation of fetal fibroblasts, which could contribute to an increase in the fibrosis seen with hydrogen peroxide. Defining the factors produced during the inflammatory response that contribute to scar formation could be important for the development of new therapies designed to minimize scarring.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Malden, USA : Blackwell Science Inc
    Wound repair and regeneration 11 (2003), S. 0 
    ISSN: 1524-475X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Adult wound repair occurs with an initial inflammatory response, reepithelialization, and the formation of a permanent scar. Although the inflammatory phase is often considered a necessity for successful adult wound healing, fetal healing studies have shown the ability to regenerate skin and to heal wounds in a scarless manner in the absence of inflammation. The cyclooxygenase-2 (COX-2) enzyme, a known mediator of inflammation, has been shown to contribute to a variety of inflammatory conditions and to the development of cancer in many organs. To examine the role of COX-2 in the wound healing process, incisional wounds were treated topically with the anti-inflammatory COX-2 inhibitor celecoxib. Acutely, celecoxib inhibited several parameters of inflammation in the wound site. This decrease in the early inflammatory phase of wound healing had a significant effect on later events in the wound healing process, namely a reduction in scar tissue formation, without disrupting reepithelialization or decreasing tensile strength. Our data suggest that in the absence of infection, adult wound healing is able to commence with decreased inflammation and that anti-inflammatory drugs may be used to improve the outcome of the repair process in the skin by limiting scar formation. (WOUND REP REG 2003;11:25–34)
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    ISSN: 1524-475X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Interleukin-1α is known to be constitutively produced by epidermal keratinocytes under normal conditions, and injection of this cytokine enhances wound reepithelialization. However, no studies have characterized the temporal sequence of interleukin-1α gene expression over the time course of wound healing, and the cellular sources of this cytokine have not been identified. In the present studies, levels of interleukin-1α messenger RNA in wound tissue isolated from SKH-1 hairless mice were characterized and the cells that produced interleukin-1α immunoreactive protein over a 10-day time course of wound healing were defined. A time-dependent upregulation in interleukin-1α gene expression occurred immediately (4 hours) after a full-thickness wound was made, which represented a four-fold increase over levels of cytokine gene expression detected in nonwounded skin. Upregulation of cytokine gene expression correlated with an immediate increase in plasma interleukin-1α levels and was followed by an increase in interleukin-1α immunoreactive protein localized to keratinocytes within the leading edge of the wound and epidermis, as well as to neutrophils within the dermis. The rapid increase in local and systemic interleukin-1α levels correlated with the infiltration of a significant number of neutrophils into the wound site and with the proliferation of both basal keratinocytes and dermal fibroblasts. Given the known ability of interleukin-1α to regulate proliferation and migration of epidermal keratinocytes and to indirectly induce leukocyte chemotaxis, the results of the present studies suggest that interleukin-1α may be an important cytokine with both local and systemic actions that are linked to the initiation of critical cellular events early in wound healing.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...