BACKGROUND: To understand mechanism, biological property and morphological component of nanometer bone material and discuss present status and applied prospect.DATA SOURCES: A computer-based online search of Medline database was undertaken to identify articles about mechanism, biological property and morphological component of nanometer bone material in English from January 1966 to February 2006, and the key works were novel bioactive materials and bone tissue engineering; meanwhile, Chinese relevant articles were retrieved in Chinese in Tsinghua database from January 2001 toOctober 2004, and the key words were nanometer bone and clinical application.STUDY SELECTION: Articles in disposal group and control group were retrieved firstly. Those obviously non-random and repetitive researches were excluded. Full text of the rest articles was looked up finally.DATA EXTRACTION: Tlere were 124 articles about mechanism, biological property and morphological component of nanometer bone material. Among them, 27 experiments or clinical researches were included.DATA SYNTHESIS: Nanometer bone has favorable conductibility and induction of bone; meanwhile, it is characterized by human-like grading structure and multi-well structure of rangu, favorable biocompatibility and stable biodegradation.Nanometer bone material also can be used in confluence of vertebral body, the buccal surgery fields, the gene therapy of uncompleted osteogenesis, rheumatic arthritis (RA) and malignant tumor. Nanometer bone material is tendency to perfection through improvement of technology.CONCLUSION: Nanometer bone material with many particular properties overcomes many difficulties and achieves a satisfactory effect at clinical pilot phase.

OBJECTIVE: The interrelationship between various growth factors and chondrocytic regeneration has drawn the attentions of scholars and the study on growth factors and repair of articular cartilage defects has been carried on to summarize the latest progression of transforming growth factor-β (TGF-β) in articular cartilage repair so as to provide theoretical evidence for its application in cartilage histoengineering.DATA SOURCES: The relevant papers about studies on mechanism and types of articular cartilage injury, TGF-β and interrelationship between TGF-β and articular cartilage repair were looked up on http:∥www.ncbi.nlm. nih.gov/PubMed from January 1995 to December 2004. The retrieval words were "TGF-β, articular cartilage" limited only in English version.The relevant papers about studies on TGF-β and articular cartilage repair were also looked up on http:∥www.zglckf. com and linked database from January 1999 to December 2004, with the retrieval words of "TGF-β, articular cartilage" limited only in English version.STUDY SELECTION: During the initial evaluation of data and after looking up the quotation of each paper, the inclusive criteria were determined as follows: the paper should be relevant with TGF-β repair of articular cartilage injury; and the exclusive criteria: repeated research and Meta analysis papers. The papers that had not been excluded applied randomized design, control and blind comparison.DATA EXTRACTION: Altogether 95 papers were collected on TGF-βand TGF-β repair of articular cartilage injury, of which, 15 papers were in conformity of inclusive criteria, 56 papers were excluded due to dated research and 24 papers were due to repeated research. Of 15 papers, 3 papers were on the mechanism and types of articular cartilage injury, 6 papers were on biological function of TGF-β and 6 papers were on TGF-βand TGF-β repair of articular cartilage injury.pact, cut, torsion and friction, which is beyond the physiological endurance of articular cartilage. Articular cartilage defects are divided into defects of partial thickness and entire layer of cartilage. The auto-repair growth factor with various functions, which is produced by either autocrine or paracrine. It starts transmitting information by integrating with lagen and stromatin by irritating osteocytes and chondrocytes to form rapidly extracellular matrix so as to promote repair of bone and cartilage injury.CONCLUSION: TGF-β plays the importance in histoengineering repair of articular cartilage injury. By bringing induction of cartilage into play,TGF-β promotes differentiation of stem cells into cartilage or enhances specific matrix synthesis of cartilage, such as collagen Ⅱ and proteoglycan. Due to the limitation of various repair methods of cartilage defects at present, being a cell factor with good cartilage induction, TGF-βwill present extensive prospects in the application of cartilage histoengineering.

Bone marrow stromal stem cells have been used in cartilage tissue engineering for nearly 20 years. This has been a key focus in stem cell research. This article serves to review application, progress and facing problems of bone marrow mesenchymal stem cells (BMSCs) in cartilage tissue engineering by retrieving publications. With the development of molecular biology, biomaterial, computer and nano-biotechnology, tissue-engineered cartilage constructed with BMSCs as seed cells combined with biomaterial stent has a widely application perspective in repairing articular cartilage defect.

To emphasize the great function of medical engineering science in the development of sanitarium through analyzing the actual status of medical engineering science in military sanitarium,especially the actual status of management for medical equipment. Starting from the overall management of medical equipment,the reinforcement of medical engineering construction in sanitarium shall ceaselessly develop the connotation of medical engineering and improve the professionalism of medical engineering staff through various ways,so that it can contribute to the healthy,stable and fast development of military sanitarium.

By analyzing the present medical metrology in army medical service units,the importance of medical metrology is emphasized in the development and construction of every unit.In particular,manifold methods should be used to unceasingly improve the professional quality of medical metrology personnel.The development and construction of this subject should be unceasingly expanded in its connotation.It is expected to promote the development of medical service units in a healthy,stable and rapid way by strengthening the construction of medical metrology.

OBJECTIVETo explore clinical curative effects of bilateral bone plate with autogenous iliac bone graft for the treatment of Schatzker IV-VI complex tibial plateau fractures.

METHODSFrom December 2011 to December 2013,32 patients with complex tibial plateau fractures (Schatzker IV-VI) were operated by bilateral bone plate with autogenous iliac bone graft. Among them,including 20 males and 12 females with an average age of 37.4 years old ranged from 19 to 54 years old; 14 cases on the left side and 18 cases on the right side; the time from injury to operation ranged from 5 h to 9 d with an average of 3.5 d. According to Schatzker classification, 8 cases were type IV, 16 cases were type V and 8 cases were type VI; according to Oestern closed fracture classification, 5 cases were type I , 19 cases were type II, 7 cases were type III and 1 case was type IV. Postoperative complications were observed and Lysholm scoring were used to evaluate functional assessment.

RESULTSThirty-two patients were followed up from 10 to 23 months with an average of 14 months. According to Lysholm scoring, totall score was 88.91 ± 8.41, 20 cases got excellent results, 9 moderate and 3 poor. One patient occurred postoperative wound infection and exposure of tibia,while healed after dressing changing and skin flap transplantation. All patients were removed internal fixation ranged from 12 to 18 months without fracture non-union.

CONCLUSIONBilateral bone plate with autogenous iliac bone graft for the treatment of Schatzker IV-VI complex tibial plateau fractures has advantages of clear exposure, stable fixation, less trauma to the intraoperative blood supply and good fracture healing.

Adult ; Bone Plates ; Female ; Humans ; Ilium ; transplantation ; Male ; Middle Aged ; Tibial Fractures ; surgery ; Transplantation, Autologous

Objective　To analyze the partial correlation problems by multilevel bivariate models.Methods　Multilevel bivariate models.Results　The results of correlation analysis with multilevel bivariate models is same with traditional methods,but the former is more quick and simple.Conclusion　Multilevel bivariate models are effective methods in analyzing the partial correlation problems.

Recent researches show that follicle stimulating hormone (FSH) plays an important regulatory role in the angiogenesis of ovarian cancer by influencing the level of some factors such as hypoxia inducefactor-1 ( HIF-1 ) ,vascular endothelial growth factor (VEGF). Meanwhile, recent studies report that FSH and FSH receptor(FSHR) may also participate in the angiogenesis of other solid tumors like lung cancer. FSH is closely related to the tumor angiogenesis, which provides a novel therapeutic target for anti-angiogenesis thera-py.

An artificial liver support system (ALSS) is a body circulatory system aims to blood purification, which consists of plasma exchange, hemodialysis, hemoperfusion, in combination with hemodiafiltration. The clinical application of non-biological artificial liver, especially plasma exchange technology, can solve the problem such as hyperbilirubinemia, endotoxemia, toxic substance accumulation and disorder of amino acid metabolism, which would save patients’ lives. ALSS can significantly improve the general physical condition, reduce operative risk, as well as relieve physiologic derangement after liver transplantation. Therefore, artificial liver serves as a bridge for liver transplantation. This paper analyzes the characteristics of ALSS, explores the methods of ALSS application in perioperative period of liver transplantation, and discusses its developing orientation.

Objective To study the efficacy of consecutive drugs in the treatment of chronic prostatitis. Methods 153 cases of moderate & severes chronic prostatitis were treated with consecutive drugs with sensitive antibiotics,? 1-blocker,inhibitor of cox-2 and traditional Chinese herb,20 cases being chronic bacterial and 133 nonbacterial. They were classified and evaluated according to the CPSI & EPS examinations as analyzed by T test. Results All cases were followed up for an average of 11.8 months(8～18 months).The average CPSI score was 32.6(32.7?5.3) before treatment and 13.4(12.8?7.3) after treatment (P