Objective:To carry out the service in the oncology by medical volunteers, provide more comprehen-sive and intimate quality nursing services guidance with nursing staff together for cancer patients. Methods:Making the medical volunteers service application system, service process and service standards. According to the patients to nursing job satisfaction questionaire by a third party, through telephone follow-up forms, carry out the satisfac-tion survey. Combined with their own advantages of TCM medical volunteers, to carry out the diet instruction, psy-chological counseling, massage, warm room service, telephone return services such as ward, score of life quality of tumor patients on admission and after the volunteer service. Results:Ward accompanying rate dropping, increasing patient satisfaction with nursing service, improving the degree of identification of volunteer service, tumor patients and improving the quality of life, and is conducive to building a perfect medical students social practice platform. Conclusion:Volunteer services improve the quality of nursing service, cultivating a correct outlook on life, values and morality of medical volunteers, strengthening medical volunteer service consciousness, achieving win-win for patients, departments, volunteers.

BACKGROUND:Transforming growth factor beta-1(TGF-β1)is a cytokine having variously biological effects in repair and renew of tissue injuries; meanwhile, tendon sheath fibroblasts and collagen Ⅰ play important roles in healing and desmoplasia of tendon.OBJECIVE:To study the effects of TGF-β1 on the proliferation and collagen production of tendon sheath fibroblasts.epitenon tenocytes and endotenon tenocytes in the three cell types of rabbit fexor tendon.DESIGN:Contrast observation study.SETTING:Department of Trauma Surgery,Affiliated Hospital of Medical College,Qingdao University.MATERIALS:The experiment was carried out in the Animal Laboratory,Affiliated Hospital of Medical College,Qingdao University from July 2004 to September 2005.A total of 6 adult New Zealand rabbits,of either gender,weighing 3.5-4.5 kg,were selected from Qingdao Experimental Animal Center.Collagenase was provided by Sigma Company;collagen Ⅰ,Ⅱand Ⅲ antibody by Sigma Company;TGF-β1 by Wuhan Boster Biology Company.METHODS: Three cell lines of tendon sheath,epitenon and endotenon were isolated from rabbit flexor tendon and cultured in serum culture media and then in serum-free culture media.In addition,the cells in the experimental group were added with 5 μg/L TGF-β1 in each well,but they were not added with any additive in the control group.MAIN OUTCOME MEASURES:①Proliferation in the two groups was measured with cytometry at 1,2,3 and 4 days after culture.②Preduction of collagens Ⅰ,Ⅱ and Ⅲ was measured with immunohistochemical staining at 4 days after culture.③Collagen contents of the three types were measured with enzyme linked immunosorbent assay(ELISA)in the two groups;expressJon of collagen Ⅰ gene was detected with reverse transcription polymerase chain reaction(RT-PCR).④Contents of collagen Ⅰ induced by TGF-β1 in various dosages of 0,5.10,15 and 20 μg/L were detected with ELISA technique.RESULTS:①Proliferated rates were similar in the two groups at 1 day after culture;however,proliferated rate of tendon sheath fibroblasts was rapidly increased, and there was significant difference as compared with that of epitenontenocytes and endotenon tenocytes(P＜0.05).②Expressions of collagens Ⅰ, Ⅱ and Ⅲ:Immunocytochemical stain demonstrated that three kinds of cells could produce collagens Ⅰ, Ⅱ and Ⅲ;while ELISA indicated that the contents of collagens in three types produced by tendon sheath fibroblasts were the most;in addition,content of collage Ⅰ was higher in the experimental group than that in the control group(P＜0.05-0.01).③Expression of collage Ⅰ gene of tendon sheath fibroblasts was increased as 1.3 times in the experimental group as that in the control group and there was signiflcant difierence(P＜0.01);meanwhile,expressions in epitenon tenocytes and endotenon tenocytes were also higher in the experimental group than those in the control group(P＜0.05).④TGF-β1 in the dosage of 5-10 μg/L had obvious effects on increasing production of collagen;however,production of collagen was not obviously changed when it was affeCted by TGF-β1 in the dosage of 10-20 μg/L.CONCLUSION: TGF-β1 can increase the production of collagen in tendon sheath fibroblasts,epitenon tenocytes and endotenon tenocytes and the expression of collagen Ⅰ gene. In addition, it is important for regulating level of TGF-β1 after tendon injury to prevent adhesion of tendon.

BACKGROUND: At present, many problems deserve to be solved before clinical utilization of adipose tissue-derived mesenchymal stem cells (ADMSCs) such as complete differentiation from ADMSCs into cardiomyocytes and ADMSCs with or without specific function of cardiomyocytes. It is of significance to solve the problems including how to elevate the differentiation rate of ADMSCs into cardiomyocytes and how to elevate the homing and survival rate after transplantation for clinical utilization of stem cells.OBJECTIVE: To observe the differentiation of ADMSCs into cardiomyocytes after in vitro culture and induction.DESIGN: Randomized controlled observation.SETTING: Laboratory of Cardiology, General Hospital of Chinese PLA.MATERIALS: Adipose tissue was collected from abdominal operative patients at Department of General Surgery of General Hospital of Chinese PLA with the agreement of patients. Iscove's Modified Dulbecco's Medium (IMDM), type Ⅰ collagenase, 5-azacytidine (5-aza) and polyclonal antibody of specific anti-myocardial Troponin T (TnT) were purchased from Hyclon company, Gibco company, Sigma and Fujian Maixin Biotechnology Company, respectively.Monoclone antibodies of CD44, CD45, CD34, HLA2DR and factor-Ⅷ, Desmin, anti-α-striated muscle actin and anti-myosin heavy chain (MHC) were bought from Beijing Zhongshan Golden Bridge Biotechnology Limited Corporation. DAB stain, reverse transcription-polymerase chain reaction (RT-PCR) kit and atrial natriuretic peptide (ANP) radioimmunity kit were purchased from Beijing Zhongshan Golden Bridge Biotechnology Limited Corporation,Invitrogen and Radioimmunity Research Institute of Science and Technology Development Center of General Hospital of Chinese PLA, respectively.METHODS: The experiment was performed at the Laboratory of Cardiology, General Hospital of Chinese PLA from March 2005 to April 2006. ADMSCs were isolated and cultured by digestion and attachment culture method. The third generation of cells were determined by immunocytochemical method for surface molecule CD44, CD13, CD105, CD45,CD34, HLA-DR, factor Ⅷ and induced by addition of 5-aza into culture medium. On the 7th, 14th, 21st and 28th days, gene of GATA4 and Nkx2.5 were tested by reverse transcription-polymerase chain reaction (RT-PCR), and the concentration of atrial natriuretic polypeptide (ANP) were also examined by radioimmunoassay.MAIN OUTCOME MEASURES: Determination of cell surface marker, gene of GATA4 and Nkx2.5, and ANP concentration.and factor Ⅷ negative for the cultured cells. After induction for 7 days with 5-aza, no cells expressed Desmin,α-Sarcomeric Actin, Myocin heavy chain (MHC) and TnT, most cells were positive stained for CD44. After induction for 14 days, small amounts of cells displayed positive for Desmin,α-Sarcomeric Actin and MHC but still negative for TnT,while partial cells expressed positive CD44. After induction for 21 days, most cells were positive for Desmin,α-Sarcomeric after induction and no significant difference was found compared with that at the 7th day [(0.022±0.01) ng/L (P＞0.05].ANP concentration was respectively (7.92±0.21) and (8.12±0.50) ng/L at the 21st day and the 28th day (P＞0.05), but there was significant difference compared with that at the 7th day (P＜0.05).

BACKGROUND: As a group of primary cells,stem cells have the potentials of self-renewal and multi-directional differentiation, and can replace the damaged cardiomyocytes to construct new vessels, and enable the asthenic heart to obtain the blood pumping function again.This study summarized the progress of stem cell transplantation in treating cardiovascular diseasesDATA SOURCES:A computer-based online search of Pubmed database was undertaken to identify English articles published from January 2000 to December 2005, the keywords were "stem cell transplantation, cardiovascular diseases".STUDY SELECTION: The articles were primarily checked, and the references of each literature were looked up. Inclusive criteria:articles correlated with the classification and the transplanted pathways of stem cells,the present status,problems and prospect of its basic and clinical application in treating cardiovascular diseases. Exclusive criteria: repetitive study or Meta analysis.DATA EXTRACTION:Totally 50 relative literatures were collected, and 31 of them accorded with the inclusive criteria,and the other 19 were excluded due to the old or repetitive contents. Of the 31 involved literatures, 19 were about the classification of stem cells used in cardiovascular system, 1 about the transplanted pathways of stem cells, 8 about the application of stem cells in treating cardiovascular diseases, and 3 about the existing problems and prospect.DATA SYNTHESIS:With the continuous improvement of living level and aging, cardiovascular diseases have become the main causes for death and disability in modern society.Stem cells have the potentials of multi-directional differentiation, and have become the main seed cells for cell replacement therapy, and provided important investigative and applicating field for the treatment of cardiovascular diseases. At present, there are many stem cells to be used in cardiovascular system, including embryonic stem cells, umbilical cord blood stem cells, peripheral blood stem cells, bone marrow stem cells, skeletal muscle satellite cells, myocardial stem cells, adipose tissue-derived stem cells, etc. The common pathways for stem cell transplantation are direct injection into myocardium,intracoronary artery injection and intravenous injection.Stem cell transplantation can treat cardiovascular diseases by promoting angiogenesis and myocardial regeneration, decreasing myocardial apoptosis and reducing myocardial collagen, then ameliorate the cardiac function, and breakthrough and progress have been made in both animal models and clinical studies. However, problems sill exist to be solved, and there is agreat distance to the routine clinical application.CONCLUSION: Stem cells are the important fields of the basic research and clinical application for preventing and treating cardiovascular diseases,thus it will provide powerful theoretical and practical supports for the more effective prevention and treatment of cardiovascular diseases to solving the key points and difficulties in cardiovascular diseases.

Objective To observe the treatment and prophylaxis of deep venous thrombosis(DVT) following fracture of lower limb and the hemorheological changes before and after treatment.Methods 26 patients underwent fracture of lower limb for study received thromholytic therapy,decreasing blood viscosity,promoting blood circulation by eliminating stasis.Before treatment and on the tenth day after treatment,the hemorheological parameters were tested.There existed a statistical analysis for the data processing.Results Among 26 patients,therapeutic evaluation:12 patients was superior,13 patients were favorable,only one patient was infective,and the total effective rate was 96.2%.Curative effect was satisfied.Conclusions The most important was prevention first for the patient with DVT following fracture of lower limb.The critical measure was early diagnosis and early treatment.

Objective To measure the range of motion (ROM) of the lumbar pedicle screw entrance point (LPSEP) in vivo during unrestricted motion under physiological weight bearing.Methods Eleven healthy volunteers aged 45-60 years underwent MRI scans in a supine position.Three-dimensional (3D) models of L2-5 were constructed.Next,each volunteer was asked to stand and was positioned in the following sequence:standing,45° flexion,maximal extension,maximal left-right twisting,while two orthogonal fluoroscopic images were taken simultaneously at each position.The MRI models were matched to the osseous outlines of the images from the two orthogonal views to determine the position of the vertebrae in 3D at each position.Coordinate systems were established to study the ROM of the LPSEP.Results The predominant translations were along anteroposterior and craniocaudal axis from supine to standing position (average,2.44mm and 2.35 mm).Rotation of the LPSEP occurred mainly around the mediolateral axis(average,3.91 °).During flexion-extension movements of the trunk,the predominant translation were along anteroposterior and craniocaudal axis and rotation were around mediolateral axis.During lateral bending and twisting,ROM of LPSEP did not rotate or translate in one dominant direction.Instead,the resulting motion represented a combination of rotation and translation in different directions.There was no significantly difference in translation and rotation between the three axis in L4,5segment (P＞0.05).Conclusion The kinematic behaviors of the LPSEP of the upper lumbar spine (L2,3 and L3,4) are similar which are different from that of the lower lumbar spine (L4,5).

Objective To investigate the efficacy of bend-assisted laparoseopie fight bemicolectomy for right colon carcinoma in elderly obesity patients. Methods 20 obesity eases undergoing hand-assisted laparoscopic right bemicolectomy were retrospectively reviewed, and compared with 25 obesity cases with transabdominal right hemicolectomy in the same period. The safety, recovery, eradication and stress reaction were compared. Results In hand-assisted laparoscopic group, there were less bleeding loss, rapid recovery to normal temperature and gastrointestinal function,ont of bed activity, short-time hospitalization compared with transabdominal group(P <0.01). There were no differences in operative time, numbers of lymph nodes removed, postoperative complications and length of specimen between two gronps(P > 0.05). CRP, IL-6, adrenocorticotrophic hormone (ACTH) and cortisol were more significantly increased in two groups after operation than before operation (P < 0. 05) , and this increase was moreprominent in transabdominal group than in hand-assisted laparoacopic group (P < 0.05). Conclusion Hand-assis-ted laparoscopic right hemicolectomy is a safe and effective way for elderly obesity patients,especially in postoperative recovery and physical stress reaction.

Purpose To investigate the research trends and focus in low-dose CT study at home and abroad in recent ten years according to literature distribution and growth law. Materials and Methods The papers on low-dose CT research published at home and abroad from 2003 to 2012 which were abstracted in Web of Science database were taken as study objects. Data filtering was performed by using the Thomson Data Analyzer (TDA) Version 2.1 analysis software for the trend of cooperation, institutional cooperation trends, national distribution of the papers trend, high-citations, subject distribution, hot topics and other aspects to do bibliometric analysis. Results A total number of 6725 papers on low-dose CT from 2003-2012 were abstracted by Web of Science. The average number of authors in single papers was 6.05 (cooperation rate, 95.7%), and the average number of institutions in single papers was 2.56 (cooperation rate, 73.9%), which both showed an increasing trend year by year. 318 Chinese papers were published, and the published literatures in 2012 were ranked third in the world. Papers on low-dose CT, which were published in Medical Physics, European Journal of Radiology and the American Journal of Roentgenology, had rapid growth. The research focus of low-dose CT study involved in lung cancer screening, coronary angiography, pulmonary embolism examination, CT radiation dose and so on. Conclusion CT low-dose studies involve in collaboration between multi-author, multi-institutional and multi-disciplinary. The trends and focus of low-dose CT study in China keep pace with the world, and the quality and quantity of paper need to be further improved.

The paper describes the organization framework,representation pattern,relation model and expression rule of SNOMED CT based on concept,and then explores the application of SNOMED CT in the expression of medical data and semantic retrieval.Thus,it can provide reference for the research and development of the terminology standard of clinical diagnosis and treatment,and promote the study of processing,mining and analysis of clinical medical data in China.

Objective To analyze the epidemic situation on schistosomiasis in five years after reaching the criteria of transmission control in 1995 in Dali City. . Methods. Epidemiological data of schistosomiasis during 1995-2000 were collected and analyzed. . Results . Stool positive rate in the population was increasing yearly, new cases of infection including cases under 14 years old were detected each year. Acute infection occurred during 1996-1998 consecutively. Stool positive rate in cattle was unstable. Snail-ridden area increased significantly in 1996 and spots with infected snails stayed at a higher level during 1997-2000. . Conclusion . Schistosomiasis in Dali city has been re-emerging though it was once deemed under transmission control. Possible reasons include a low drug-taking rate though distributed, frequent movement of cattle population, and less activity on snail control.