BACKGROUND: At the process of wound healing, the epithelial cells and epidermal stem cells interactions is complicated which promoting the mechanisms of wound healing. The abnormities of any fine phase can be result in delayed healing or scarring. OBJECTIVE: To summarize the characterization of epithelial cells and epidermal stem cells and their interaction in wound healing so that we can recognize the mechanisms of scarring from histomorphology, biochemistry and molecular variations. METHODS: A computer-based online search of Pubmed Database was undertaken to identify the relevant articles on epithelial cell and epidermal stem cells interactions in wound healing and results in scarring published from 1974 to 2009 with the key words of "epithelial cells, epithelial stem cells, wound healing, keratinocytes, fibroblasts, hypertrophic scar, keloid" in English. At the same time, Chinese relevant articles were searched in China Journal Full-text Database (CJFD) published between 1999 and 2009 with the same key words in Chinese. A total of 43 articles were collected about the cell structure (3 articles), the cell interactions in wound healing and scarring (16 articles), the relevant on epithelial stem cells (24 articles).RESULTS AND CONCLUSION: The effect of different cells in epithelial tissue is known to all. The keratinocytes and fibroblasts had been on studying frequently, and their closely correlated to scarring. At present, the epithelial stem cells has been confirmed, but the relevant on their location, quality and specific epidermal markers are unclear which need to study and explore. With the rapidly development of science and technology, we maybe control the expression of cells by genic regulation not only culture the cells of our need but to prevent the scarring.

Objective To explore the application value of the guide-wire for selective biliary cannulation of proximal biliary obstruction.Methods A total of 344 patients with proximal biliary obstruction were treated by endosocopic retrograde cholangio-pancreatography.Various guide-wire skills,were applied to pass through the stricture of bile duct,so as to reach the target bile duct,and analyzed for their therapeutic effects.Results Selective biliary cannulation of proximal biliary obstruction was completed in 336 patients,after successful cholangiography for therapeutic operation.The overall success rate was 97.67％.There was no procedure-related complications,such as hemobilia or perforation.Conclusion The guide-wire for selective biliary cannulation of proximal biliary obstruction not only improves the success rate of therapeutic endoscopy but also reduces the procedure time and the incidence of complications.

Objective To quantify the contents of baicalin, wogonoside, baicalein, wogonin, chrysim and oroxylinA in the Scutellaria baicalensis Georgi with different storage time by liquid chromatography-mass spectrometry( LC-MS) and determine the stability of Scutellaria baicalensis Georgi. Methods The LC system consisted of an Agilent Zorbax XDB-C18 column (2. 1 mm×150 mm,3. 5 μm) with acetonitrile and water (0. 1% formic acid) in linear gradient condition. The flow rate was 0. 2 mL·min-1 and the wavelength of detection was 276 nm. The mass spectrometer was operated under the positive ion mode with the ESI source. The precursor-to-product ion pair was 447/271 for baicalin,461/285 for wogonoside,271/123 for baicalein, 285/270 for wogonin, 255/153 for chrysim and 285/270 for oroxylinA, respectively. Results The contents of baicalin, wogonoside, baicalein, wogonin, chrysim and oroxylin A had a linear relationship with their peak areas within the ranges of 8. 86-177. 2, 2. 33-46. 5, 2. 6-52. 0, 0. 52-10. 4, 0. 04-0. 8 and 0. 04-0. 8 μg · mL-1 , respectively. The contents of baicalin, wogonoside, baicalein, wogonin, chrysim, and oroxylin A were overall decreased over the first 3 months of storage,but remained relatively stable between 0 and 18 months. Conclusion The results provides basis for the establishment of quality standard.

OBJECTIVE To carry out "Occupation Exposition Risk Guard" curriculum practice in high rank nursing and discuss the value of built this curriculum in senior professional school.METHODS The skin damage and after-damage processing were investigated by questionaire before and after this curriculum.RESULTS People not accepted this curriculum had skin damage of 96.25%,after-damage processing rate of 36.25%,and reporting rate of 20.00%,vs 70.00%,100.00% and 87.5% in but people who accepted this curriculum.CONCLUSIONS In the process of training the education of occupation exposition protection knowledge has important value.

Objective To evaluate the endoscopic precut sphincterotomy for malignant biliary obstruction. Methods Endoscopic precut sphincterotomy was performed in different ways for 46 patients with malignant biliary obstruction and difficult biliary cannulation according to the anatomic structure of the papilla and cannulation. Ways of precut were summarized and complications were analyzed. Results Precut sphincterotomy was performed with bow-like knife in 4 patients, with needle-knife in 24, with trans-pancreatic sphincterotomy in 12 and with combined ways in 6. The procedure succeeded in 35 cases (76. 1%, 35/46). Post-procedure complications included bleeding in 3 patients, pancreatitis in 1, hyper-amylasemia in 2and cholangitis in 1. No perforation was found. Conclusion Endoscopic precut sphincterotomy is not only able to improve the therapeutic endoscopy achievement rate in patients with malignant biliary obstruction, but also to lower the incidence of complications if used adequately.

This paper identified misunderstandings of the measures taken in China to overcome the problems incurred by off-label uses (namely reliance on drug makers to modify their medicine specifications,on medical institutions to enhance their regulation and management of off-label uses,and on informed consent to avoid risks).Based on such findings,the paper named defects found with such measures,and puts forward feasible ideas and methods to make such off-label uses legitimate and reasonable.These include clarification of the legal status of the medicine specifications,encouraging authoritative guidance for off-label uses,and determining the subject of evaluation to approve the off-label uses as reasonable.Such efforts aim at helping off-label uses out of the legal difficulties.

Objective To evaluate efficacy and safety of Iodine-125 seeds used in brachytherapy for cholangiocarcinoma.Methods A total of 65 cases of cholangiocarcinoma patients were diagnosed and treated with ERCP.The Iodine-125 seeds were implanted into bile duct cavity by self-made carrier (applicator) in various ways, and Iodine-125 seeds were replaced to improve the local irradiation dose.Follow-up was regularly made through endoscopy and ultrasonography to evaluate feasibility, efficacy and complications.Results Self-expanding metal stents, single or double plastic stents were successfully placed in 65 patients.At first , single row of Iodine-125 seeds were inserted to 59 patients, double row Iodine-125 were inserted to 6 patients , and the average activity of the first irradiation was 5.775 mCi.Iodine-125 were replaced in 4 patients after three months, in 41 patients after six months, in 5 patients after one year.The total dose was up to 14 mCi.In the follow-up of 6-35 months, the longest survival time was 35 months in two patients, where the Iodine-125 seeds were replaced 3 times as a whole and there was no serious complications.Conclusion Iodine-125 brachytherapy on cholangiocarcinoma by ERCP, where biliary stents and Iodine-125 seeds can be replaced at any time , is convenient, less invasive and can obviously prolong survival time.

Thyroid peroxidase(TPO) gene was detected in 20 patients with congenital hypothyroidism. An insertion c. 2268insT of TPO gene was found in one of them, and c. 2268insT combined with c. 1477G＞C mutation in another. TPO gene mutation may be related to pathogenesis of congenital hypothyroidism in Chinese.

OBJECTIVETo discuss the impact of huolong moxibustion on pain degree in the patients of discogenic low back pain and the effect mechanism.

METHODSSixty-five patients were randomized into an observation group (33 cases) and a control group (32 cases). In the observation group, huolong moxibustion was applied along the distribution of the Governor Vessel, once a day. In the control group, the routine traction combined with massage therapy was adopted, once a day. In the two groups, the treatment was given 6 times a week, at interval of 1 day. In 3 weeks of treatment, pain score and serum tumor necrosis factor α (TNF-α) level were compared with those before treatment in the two groups.

RESULTSCompared with those before treatment, pain score and TNF-α level were reduced significantly after treatment in the two groups (both P < 0.05). The results in the observation group were lower than those in the control group (pain score: 1.95 ± 0.61 vs 2.11 ± 0.61; TNF-α: (1.33 ± 0.30) nmol/L vs (1.55 ± 0.48) nmol/L, (both P < 0.05).

CONCLUSIONHuolong moxibustion significantly alleviates pain in the patients of discogenic low back pain and its effect mechanism is possibly relevant with TNF-α reducing.

Adult ; Female ; Humans ; Low Back Pain ; metabolism ; therapy ; Male ; Massage ; Middle Aged ; Moxibustion ; Pain Measurement ; Traction ; Tumor Necrosis Factor-alpha ; metabolism ; Young Adult

Objective:To study relationship between B10 cells and the incidence of autoimmune diabetes in nonobese diabetic mice. Methods:20 NOD/LT female mice of 6 week old were cultured in normal culture to 30 weeks,and the mice were divided into two groups according the mice’s blood glucose,serum creatinine and body weight detected at their 30 weeks old. IL-10 levels in spleen tissues of the two groups were detected by enzyme-linked immunosorbent assay. We used flow cytometry to detect the proportion of B10 cells in the spleen of mice in the two groups. NOD/LT mice were randomly divided into control group and B10 group. The B10 cells were inoculated in B10 groups,their blood glucose were detected when they were 10,15,20,25 and 30 weeks old. Results: The blood glucose and serum creatinine levels were significantly higher in the group than that in the autoimmune diabetes group (P< 0. 05),and the body weight was significantly lower than that in the autoimmune diabetes group (P<0. 05). The level of IL-10 in the spleen tissues of the autoimmune diabetes mice was significantly higher than that in the non autoimmune diabetes group. The content of B10 cells in the spleen of the mice with autoimmune diabetes mellitus was significantly higher than that in the non autoimmune diabetes group. When mice at the age of 10,15 weeks,the incidence of autoimmune diabetes in B10 group was significantly lower than that in the control group,but the incidence of autoimmune diabetes in B10 group was significantly higher than that in control group at 20,25 and 30 weeks. Conclusion:The over accumulation of B10 cells may be one of the reasons for the further development of autoimmune diabetes in NOD mice.