Objective:To determine the three-dimensional stability of atlantoaxial reconstruction with anterior approach screw fixation through C2 vertebral body to C1 lateral mass and Gallie’s technique for C1~2 instability.Methods:25 human cadaveric specimens were randomly divided into 5 groups.The three-dimensional range of motion C1 relatively C2 was measured under five different conditions,the intact state(intact group),odontoid tape Ⅱ fracture(group OTF),fixation with posterior C1~2 transar- ticular screw(group PTS),anterior approach screw fixation through C2 vertebral body to C1 lateral mass(group ASM),ASM and Gallie’s technique(group ASMG). The obtained data were statistically analyzed. Results:The range of motion in all directions group ASMG,ASM and PTS was significantly decreased.There was significant difference among group ASMG,ASM and PTS in flexion/extension and lateral bendings by statistical analysis(P0.05). Conclusion:In vivo biomechanics studies showed that ASMG had unique superiority in the reconstruction of the atlantoaxial stability,especially in controlling the instability of flexion/extension and lateral bendings.It was one kind of reli- able surgical choice for the treatment of the obsolete insta- bility or dislocation of C1~2 joint.

In this paper, we describe mismatch, chaos, and disorder behavior during healthcare seeking. Such structural imbalances, scarcity and surplus make healthcare services less efficient. We give reasons for such phenomena in terms of long-term effects of health resource allocation policy-making and implementation, inherent de-fects within healthcare insurance, incomplete market development, and cultural issues. We then propose four policy strategies, including rational price mechanism, strict referral healthcare system, confidence in basic healthcare facili-ties, and proper healthcare cultures. These will restore orderly healthcare behavior and help realize expectations for the current healthcare reform in China.

Objective To seek a operation method of quality control of biochemical tests in peacekeeping mission via perspective of evidence-based laboratory medicine .Methods Literatures related to quality control of biochemical tests in international peace-keeping were referred ,compared and discriminated .Combined with 5-year peacekeeping laboratory experience ,a set of feasible ap-proaches were worked out and a practice evaluation was performed in a task period .Results Under the supervision of the quality control system ,providing accurate and reliable test results to the clinical ,developing and implementing quality control of biochemical tests were economical ,practical and reliable ,and could guarantee the effectiveness of reports of biochemical test in peacekeeping medical institutions .Conclusion Evidence-based laboratory medicine is important for quality control of biochemical tests in peace-keeping medical institutions .

Animals ; Arbovirus Infections ; prevention & control ; virology ; Arboviruses ; growth & development ; Biomedical Research ; methods ; standards ; trends ; China ; Humans ; Insect Vectors ; virology

China ; Encephalitis Virus, Japanese ; genetics ; immunology ; isolation & purification ; Encephalitis, Japanese ; virology ; Humans ; Research ; trends

The paper introduces microcosmic control model for medical morals construction.The function of the model includes explanation,operation and evaluation.The author holds that the key to the morals construction is scientific management,and the decision maker should have the social responsibility and the love-patient consciousness.

AIM: To study the effects of arsenic trioxide (As_2O_3) on mouse airway fibroblast (FB) proliferation and expression of c-myc and c-sis in cultured FB. METHODS: The cultured FB was divided into seven groups. NS, dexamethasone (1.0 ?mol/L) and As_2O_3 at concentrations of 0.25, 0.5, 1.0, 2.0, 4.0 ?mol/L were instilled respectively into cultured FB. The effects of different concentration of As_2O_3 and dexamethasone on cell growth were observed at 1, 3, 5 and 7 day. The changes of cell cycle and the positive expression rate of c-myc and c-sis were examined by flow cytometry (FCM). RESULTS: Various concentrations of As_2O_3 significantly inhibited the proliferation of FB in vitro and showed a dose-dependent and time-dependent tendency. Data from FCM indicated that G_1-phase cell percentage increased and G_2/M-phase cell percentage decreased with the increase in As_2O_3 concentrations. The expression of c-myc and c-sis was significantly inhibited by As_2O_3 (2.0, 4.0 ?mol/L). CONCLUSION: As_2O_3 inhibits FB proliferation by downregulating the expression of c-myc and c-sis.

Objective To study the curative effects of fixation with absorbable screw and fixative stick to treat ankle joint fracture accompanied by ankle joint dislocation.Methods 27 Patients with ankle joint fracture accompanied with ankle joint dislocation were fixed with absorbable screw and fixative stick since 1995 in our hospital.Internal,outer,backankle with SR-PLLA fixation and the distal tibiofibular syndesmosis separation by SR-PGA with absortive screw and fixative stick.Results All 27 Patients were followed up.The fracture healed up in about 10 weeks.All fracture had no displacement during the course of the treatment and no influencing function after operation.They were evaluated with Sarkision criterion.The successful rate was 92 6%.Conclusion SR-PLLA fixation,PGA absorbable screw and fixative stick are ideal fixation in treating ankle joint fracture accompanied by dislocation.

Animals ; China ; Culex ; Insect Vectors ; Longitudinal Studies

Angioplasty, Balloon, Coronary ; Humans