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      Effects of Traditional Chinese Medicine Shuxuetong Injection on Random Skin Flap Survival in Rats

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      Author(s): 1 , 2 , 1 , *
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      Journal: The Scientific World Journal
      Publisher: Hindawi Publishing Corporation

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          Abstract

          Background. A Shuxuetong injection is traditionally used in Chinese medicine to treat “blood stasis and stagnation” (yu xue yu zhi). We investigated the effect of such injection on the survival of random skin flaps. Methods. McFarlane flaps were established in 60 rats divided into two groups. Postoperative celiac injections were given to both groups for 7 days. Shuxuetong was injected into the test group, and saline was injected into controls. On day 7, tissues were stained with H&E (hematoxylin-eosin) stain, immunohistochemically evaluated, and the expression levels of xanthine oxidase were determined. Result. The mean area of flap survival in the test group was significantly higher than in controls. Expression of vascular endothelial growth factor and superoxide dismutase, and microvessel development, were markedly increased in the test group, and the malondialdehyde level was reduced. Conclusion. Shuxuetong promotes random skin flap survival.

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          Improvement of the skin flap survival with the bone marrow-derived mononuclear cells transplantation in a rat model.

          Mei Yang, Lingling Sheng, Hua Li … (2010)
          Partial necrosis of skin flaps remains a significant problem in plastic and reconstructive surgery. In this study we attempted to evaluate the effect of bone marrow-derived mononuclear cells (BM-MNCs) transplantation on improvement of skin flap survival in a rat random pattern skin flap model. Thirty Wistar rats were divided into three groups with each consisting of 10 rats. BM-MNCs and the adipose-derived stem cells (ADSCs) were transplanted into the subcutaneous tissue in the area where the flap would be dissected. The flaps were then raised two days after cells transplantation. The animals receiving the preoperative Dulbecco's Modified Eagle Medium (DMEM) treatment were used as the controls. On the 7th postoperative day, the survival areas of flaps were measured and tissues were collected for examinations. The results showed that the mean survival areas were 46.33 +/- 13.46% in the ADSCs group and 50.06 +/- 13.82% in the BM-MNCs group as the percentages of the total skin flaps, which were significantly higher than that in the control group (26.33 +/- 7.14%) (P < 0.05). Histological analysis showed increased neovascularization in the flap treated with BM-MNCs when compared with ADSCs transplantation. Survival BM-MNCs and ADSCs were detected in the flap tissues. Higher levels of the basic fibroblast growth factor (bFGF) and vascular endothelium growth factor (VEGF) were found in the BM-MNCs transplantation group (P < 0.05). The findings from this study demonstrated that preoperative treatment with BM-MNCs transplantation could promote neovascularization and improve flap survival. These effects of BM-MNCs on flap survival were comparable with ADSCs transplantation, but without necessity of in vitro cells expansion.
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            Clinicopathological significance of non-small cell lung cancer with high prevalence of Oct-4 tumor cells

            Zhenguang Chen, Tao Wang, Lie Cai … (2012)
            Background Expression of the stem cell marker octamer 4 (Oct-4) in various neoplasms has been previously reported, but very little is currently known about the potential function of Oct-4 in this setting. The purpose of this study was to assess the prognostic value of Oct-4 expression after surgery in primary non-small cell lung cancer (NSCLC) and investigate its possible molecular mechanism. Methods We measured Oct-4 expression in 113 NSCLC tissue samples and three cell lines by immunohistochemical staining and RT-PCR. The association of Oct-4 expression with demographic characteristics, proliferative marker Ki67, microvessel density (MVD), and expression of vascular endothelial growth factor (VEGF) were assessed. Results Oct-4 expression was detected in 90.3% of samples and was positively correlated with poor differentiation and adenocarcinoma histology, and Oct-4 mRNA was found in each cell lines detected. Overexpression of Oct-4 had a strong association with cells proliferation in all cases, MVD-negative, and VEGF-negative subsets. A Kaplan-Meier analysis showed that overexpression of Oct-4 was associated with shorter overall survival in all cases, adenocarcinoma, squamous cell carcinoma, MVD-negative, and VEGF-negative subsets. A multivariate analysis demonstrated that Oct-4 level in tumor tissue was an independent prognostic factor for overall survival in all cases, MVD-negative, and VEGF-negative subsets. Conclusion Our findings suggest that, even in the context of vulnerable MVD status and VEGF expression, overexpression of Oct-4 in tumor tissue represents a prognostic factor in primary NSCLC patients. Oct-4 may maintain NSCLC cells in a poorly differentiated state through a mechanism that depends on promoting cell proliferation.
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              Protective effect of endogenous hydrogen sulfide against oxidative stress in gastric ischemia-reperfusion injury

              Jin-Jie Cui, Lei Liu, JIHE ZOU … (2012)
              Hydrogen sulfide (H2S) is a gaseous signaling molecule, which plays a critical role in a number of physiological and pathological progresses. In order to determine the effect of endogenous H2S on gastric ischemia-reperfusion (GI-R), we evaluated the gastric mucosal damage in rats intraperitoneally injected with DL-propargylglycine (PAG, 50 mg/kg/day) or L-cysteine (L-cys, 50 mg/kg/day) for 7 days before GI-R. GI-R injury was achieved by clamping the celiac artery for 30 min, followed by reperfusion for 60 min. Gastric mucosal damage was macroscopically assessed in the area of injury and deep damage was assessed by histopathological scoring. PAG increased the area of gastric mucosal injury and deep damage compared with that in untreated GI-R rats (P<0.05). While PAG decreased the H2S concentration and cystathionine γ-lyase (CSE) expression in the gastric mucosa, L-cys significantly attenuated the effects of GI-R. Western blot analysis revealed that the increases of malondialdehyde (MDA) and xanthine oxidase (XOD), and decreases of glutathione (GSH), superoxide dismutase (SOD) and the restriction of superoxide (O2 −) production in the PAG group were inhibited by L-cys (P<0.05). Endogenous H2S has a protective effect against GI-R in rats by inhibiting oxygen free radical overproduction.
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                Author and article information

                Journal
                Journal ID (nlm-ta): ScientificWorldJournal
                Journal ID (iso-abbrev): ScientificWorldJournal
                Journal ID (publisher-id): TSWJ
                Title: The Scientific World Journal
                Publisher: Hindawi Publishing Corporation
                ISSN (Electronic): 1537-744X
                Publication date Collection: 2014
                Publication date (Electronic): 26 February 2014
                Volume: 2014
                Electronic Location Identifier: 816545
                Affiliations
                1Department of Hand and Plastic Surgery, The Second Affiliated Hospital of Wenzhou Medical University, No. 109, XueYuan Road (West), Lucheng, Wenzhou, Zhejiang 325000, China
                2Department of Anesthesia, The Children's Hospital Zhejiang University School of Medicine, No. 57 Zhugan Lane, Hangzhou, Zhejiang 310006, China
                Author notes

                Academic Editors: H. Acker and N. C. Gorin

                Article
                DOI: 10.1155/2014/816545
                PMC ID: 3958672
                PubMed ID: 24723830
                SO-VID: 9c436de6-b472-41cc-851c-509451b8cfa1
                Copyright © Copyright © 2014 Leyi Cai et al.
                License:

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 12 December 2013
                Date accepted : 23 January 2014
                Categories
                Subject: Research Article

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