PMID- 10455895 OWN - NLM STAT- MEDLINE DCOM- 19990902 LR - 20171207 IS - 0039-6060 (Print) IS - 0039-6060 (Linking) VI - 126 IP - 2 DP - 1999 Aug TI - Trauma-hemorrhage delays wound healing potentially by increasing pro-inflammatory cytokines at the wound site. PG - 279-85 AB - BACKGROUND: Studies indicate impaired wound healing after trauma. The underlying mechanism remains unknown. METHODS: Mice were subjected to midline laparotomy, and polyvinyl alcohol sponges were implanted subcutaneously before hemorrhage (35 +/- 5 mmHg for 90 minutes, resuscitated) or sham operation. Wound exudate cells from the sponges were harvested on the first, third, and fifth postoperative day and cultured for 24 hours. Interleukin (IL)-1 beta, IL-6, monocyte chemotactic protein-1 (MCP-1), macrophage inflammatory protein-2 (MIP-2), and transforming growth factor (TGF)-beta were determined in the supernatants. IL-1 beta and IL-6 were measured in the wound fluid. RESULTS: Hemorrhage decreased collagen deposition in the wound. TGF-beta release was significantly decreased on the first and third postoperative days after hemorrhage, whereas IL-1 beta and IL-6 release was increased at 3 and 5 days after hemorrhage. Similarly, IL-1 beta and IL-6 in the wound fluid were significantly increased at 3 days after hemorrhage. CONCLUSIONS: Because increased levels of pro-inflammatory cytokines and decreased amounts of TGF-beta have been reported to impair the process of wound healing, the increased release of IL-1 beta and IL-6 and the decreased release of TGF-beta after hemorrhage might contribute to the decreased collagen production in those animals. Thus, attempts to locally change the ratio of those cytokines in trauma victims might be useful for improving wound healing in those patients. FAU - Angele, M K AU - Angele MK AD - Center for Surgical Research, Brown University School of Medicine, Providence, RI, USA. FAU - Knoferl, M W AU - Knoferl MW FAU - Ayala, A AU - Ayala A FAU - Albina, J E AU - Albina JE FAU - Cioffi, W G AU - Cioffi WG FAU - Bland, K I AU - Bland KI FAU - Chaudry, I H AU - Chaudry IH LA - eng GR - R01 GM 37127/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Surgery JT - Surgery JID - 0417347 RN - 0 (Chemokines) RN - 0 (Cytokines) SB - IM MH - Animals MH - Chemokines/biosynthesis MH - Cytokines/*biosynthesis MH - Hemorrhage/*metabolism MH - Macrophages/physiology MH - Male MH - Mice MH - Mice, Inbred C3H MH - Neutrophils/physiology MH - *Wound Healing MH - Wounds and Injuries/*metabolism EDAT- 1999/08/24 00:00 MHDA- 1999/08/24 00:01 CRDT- 1999/08/24 00:00 PHST- 1999/08/24 00:00 [pubmed] PHST- 1999/08/24 00:01 [medline] PHST- 1999/08/24 00:00 [entrez] AID - S0039-6060(99)70166-2 [pii] PST - ppublish SO - Surgery. 1999 Aug;126(2):279-85.