28 research outputs found
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Venipuncture-Induced Hematomas Alter Skin Barrier Function in the Elderly Patients
We aimed to compare the barrier function of the skin site with the color of hematoma induced by venipuncture and the area surrounding the skin site to help improve skin care for hospitalized elderly patients. There were 50 patients with a median age of 84 years who were included in the analysis. There was no significant difference between the hematoma site-induced venipuncture and the area surrounding the hematoma site in terms of transepidermal water loss and skin sebum level. The status of stratum corneum hydration and skin elasticity on the hematoma sites was significantly lower than that on nonhematoma sites. The median skin pH was significantly higher on hematoma sites than that on nonhematoma sites. The study variables did not reveal any significant correlation with the intensity of skin erythema. These findings showed that hematoma formation in the subcutaneous tissue affected the skin barrier function and that these sites need moisturizing skin care regardless of the intensity of skin erythema
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ããã¯ç 究ååã®æ¿è«ŸãåŸããåµã®å€åå¥ã«ãµã€ãã«ã€ã³ã®äžæããå²åãã¿ããšããã±ããã®æ¥çã¯ã±ã¢å€æŽ7æ¥åŸã®VEGFã6/7ãèèœå¢æ®ã¯ã±ã¢å€æŽ3æ¥åŸã®bFGFã8/8ãè¡šç®åã¯ã±ã¢å€æŽ3æ¥åŸã®bFGFã8/10ãšé«çã§ãã£ããããåºã«ã±ã¢è©äŸ¡åºæºãäœæãããã®éœæ§åå¿äžèŽçã¯bFGFã70.0%ãVEGFã¯66.7%ã§ãã£ãã以äžãããä»åéçºãã耥ç¡ã®ã±ã¢è©äŸ¡åºæºã¯æå¹ãšç€ºåããããThe purpose of this study was investigated the change in cytokines in refractory pressure ulcers and relationship between its changing and wound healing process. We investigated cytokines in pressure ulcers and wound change patterns in order to clarify cytokine behaviour at each status. After three days and seven days changing care measurements were performed of the levels in retained exudate of the cytokines; interleukin lα and 1β (IL-lα, 1β), basic fibroblast growth factor (bFGF), platelet-derived growth factor-AB (PDGF-AB), interleukin-4 (IL-4), transforming growth factor-β1 (TGF-β1) and vascular endothelial growth factor (VEGF). Wounds were observed weekly. All subjects had consented to participate in the study. Cytokines were increased at each wound change: for undermining adhesion, it was six out of seven (elevation in VEGF at seven three days); for increased granulation, eight out of eight (bFGF at after three days); and for epithelialization also eight out of ten (bFGF at after three days). Standard care evaluation of pressure ulcers was developed from these results. The results of our standard care evaluation were as follow: positive predictive value of bFGF 70.0% and positive predictive value of VEGF 66.7%. Therefore, it was suggested that our standard care evaluation of pressure ulcers was effective.ç 究課é¡/é åçªå·:17592200, ç 究æé(幎床):2005 â 2006åºå
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Relationship between the distribution of myofibroblasts, and stellar and circular scar formation due to the contraction of square and circular wound healing
é沢倧åŠå€§åŠé¢å»åŠç³»ç 究ç§èšåºå®è·µçè·åŠSquare skin wounds can heal to form a stellar scar with four protrusions at the four angles, whereas circular wounds can heal to form an ellipsoid scar. It is not clear why these differences occur and the aim of the present study was to clarify this phenomenon. Two square or circular full-thickness skin wounds were made on the dorsum of mice, and covered with hydrocolloid dressing. They were observed from day 0 to 15 after wounding, and used to prepare paraffin sections stained with anti-α-smooth muscle actin antibody to detect myofibroblasts. The square wound was transiently enlarged by edema and skin tension on day 3, at which time the angles became round, and thus the square form became more circular. Thereafter, the wound contracted rapidly and the circular form was maintained until day 11. On day 11 distinct angles appeared where the scar formation had progressed further, and there were fewer myofibroblasts than in any other section. A stellar scar with protrusions from the four angles was formed on day 15, when myofibroblasts almost disappeared in the protrusions. This indicates that due to the earlier disappearance of myofibroblasts and earlier scarring in the angles of the square wound, the scar angle cannot be pulled into the center of the wound but residual myofibroblasts on the side can pull the side into the center due to myofibroblastic contraction and consequently a stellar scar is formed. Thus, the earlier disappearance of myofibroblasts in the angles is very important for the formation of stellar scars. © 2007 The AuthorsJournal compilation © 2007 Japanese Association of Anatomists.å
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