Implant performance is closely related to the load transmission at the bone-to-implant interface where bone quality will be highly variable.It has been demonstrated that poor quality bone is associated with high failure rates.To date,Digital Radiography,Dual energy X-ray absorptiometry and Computed tomography scan technique have gained increasing popularity for precise evaluation of the dental implant field in clinic,which would enable the surgeons to predict implant properties and immediate loading capacity before surgery.Individual preoperative measurements of local bone mineral density could be used to determine the best suited implant sites and types and optimize the prosthetic plan accordingly,which has important significance in the prognosis of the dental implants.

Recent years have witnessed great development of TLA (Total Laboratory Automation) technology, however, its application hit the bottleneck of high cost and openess to other parties' instruments. Specifically speaking, the initial purchase of the medical devices requires large sum of money and the new system can hardly be compatible with existing equipment. This thesis proposes a new thought for system implementation that through incremental upgrade, the initial capital investment can be reduced and through open architecture and interfaces, the seamless connection of different devices can be achieved. This thesis elaborates on the standards that open architecture design should follow in aspect of mechanics, electro-communication and information interaction and the key technology points in system implementation.
Automation, Laboratory ; Computer Systems

[ABSTRACT]AIM:ToevaluatetheeffectsofantisenseTGF-β1oligodeoxynucleotide(ASTGF-β1)ontheex-pression of TGF-β1 , deposition of extracellular matrix ( ECM) and the neointima formation in the arteries after balloon inju-ry.METHODS:The unmodified and phosphorothioate-modified AS TGF-β1 which containing 15 bases and surrounding the initiation codon region (ATG) of rat TGF-β1 complementary DNA (cDNA) were designed.At the same time, sense TGF-β1 oligodeoxynucleotide ( S TGF-β1 ) with the base sequence complement to AS TGF-β1 was synthesized as a control . The oligodeoxynucleotides were introduced into in vivo and in vitro experiments , respectively .RESULTS:The AS TGF-β1 significantly inhibited the protein expression of TGF-β1 in a concentration-dependent manner , and S TGF-β1 did not have the same effect.Furthermore, no effect of the AS TGF-β1 on the mRNA expression of TGF-β1 in injured VSMCs was ob-served.Moreover, for the injured VSMCs, AS TGF-β1 significantly and concentration-dependently inhibited the basal DNA synthesis.Both AS TGF-β1 and S TGF-β1 did not exhibit dose-dependent effects on DNA synthesis in uninjured VSMCs . Fibronectin ( FN) mRNA expression in injured VSMCs was significantly decreased by AS TGF-β1 in a concentration (0.01~1 μmol/L)-dependent manner .AS TGF-β1 significantly increased the mRNA expression of contractile marker SM 22α, and decreased the mRNA expression of synthetic markers osteopontin and matrix Gla , especially at the concentration of 0.01μmol/L and 0.1 μmol/L.After treatment with AS TGF-β1 (90 μg· kg-1 · d-1 ) for 28 d, the neointima formation was significantly inhibited , and the area ratio of intima/media was markedly decreased by 68% compared with untreated group , but S TGF-β1 had no effect on neointimal formation .CONCLUSION:The AS TGF-β1 specifically inhibits the pro-tein expression of TGF-β1 in the VSMCs derived from injured arteries .Moreover , it significantly inhibits DNA synthesis and cell proliferation, and decreases the expression of FN .Therefore, AS TGF-β1 dramatically attenuates neointima formation after balloon njury .The effects of AS TGF-β1 on the injured VSMCs may be associated with its reverse effects on the altera-tion of VSMC phenotype after balloon injury .

Objective To observe the clinical efficacy of Huxinkang Pills in treating patients with unstable angina pectoris (UAP) and its effects on the tumor necrosis factor-α (TNF-α) and N-terminal pro-brain natriuretic peptide (NT-proBNP). Methods Sixty patients with UAP were randomly divided into the treatment group and the control group, 30 cases in each group. Patients in the treatment group were treated with Huxinkang Pills based on the basic western medicine, while the patients in the control group were treated with Tongxinluo Capsules based on the basic western medicine. The treatment course was 4 weeks. Clinical efficacy and the change of the TNF-α and NT-proBNP levels before and after treatment were observed. Results The general efficacy, electrocardiograph efficacy, angina pectoris efficacy, TCM syndrome efficacy and glonoine reduction of the two groups had statistically difference (P<0.05) respectively, and the efficacy of the treatment group was superior to that of the control group (P<0.05). The TNF-α and NT-proBNP levels in both groups before and after treatment had statistically difference (P<0.05) respectively. The differences in TNF-α and NT-proBNP levels between both groups after treatment were all statistically significant (P<0.05), and these indexes of treatment group were superior to those of the control group (P<0.05). Conclusion Huxinkang Pills are remarkable in treating patients with UAP, and able to restrain the levels of TNF-α and NT-proBNP.

Objective: To establish an optimal extraction process of the total glycoalkaloids in Solanum tuberosum L. and then study the anti-inflammatory activity. Methods:The extraction process of the total glycoalkaloids was optimized by orthogonal design. Compared with that of the total glycoalkaloids in Rhizoma Dioscoreae Melanophymatis and fresh potato pieces, the anti-inflammatory ac-tivity of the total glycoalkaloids in Solanum tuberosum L. was evaluated by mouse ear swelling model induced by xylene, rat paw swell-ing model induced by carrageenan, granuloma model caused by cotton and blood capillary permeability experiments. Results:The opti-mal extraction conditions were as follows:the extraction temperature was 65℃, 10-fold amount of methanol was used for twice extrac-tion with 45 min per time. The total glycoalkaloids from the optimal extraction had obvious anti-inflammatory activity,and the effect was related to the content ofα-chaconine. Conclusion:The results show that the order of different factors affecting the extraction rate is ex-traction temperature> extraction time, and the total glycoalkaloids in Solanum tuberosum L. has good anti-inflammatory effects in mice and rats.

Objective: To study the relationship between the individual psychological characteristic of medical students and the way parents bring up them. Methods: Data on SCL-90, 16PF,EMBU of 1550 medical students were analysed. Results: It is showed that girl students have experienced more of the parents' emotion, understanding and favouritism, while the boy students have experienced more of their parents' refusal, deny, punishment, severity and excessive interference. There are more only-one-children who experience parents' emotion, understanding, interference and excessive protection. Conclusions: Parents' bad breeding attitude and behavior influence children's psychological health and forming of the individual characteristic directly or indirectly

OBJECTIVE:To determine the plasma mycophenolic acid concentration by HPLC, and study the multidoses pharmacokinetics character of mycophenolic acid in Chinese kidney transplantation patients. METHODS: The samples were precipitated with acetonitrile before injection. Diamonsil C18 column was used. The mobile phase consisted of acetonitrile-10 mmol?L-1 KH2PO4 (5∶6) at a flow rate of 1.1 mL?min-1. The detection wavelength was 254 nm and the column temperature was 40 ℃. This method was used to determine the multidoses pharmacokinetics in 12 kidney transplantation patients. RESULTS: MPA was well-separated from internal standard in chromatography, and endogenous foreign substance in plasma had no interference on the determination. The liner range for MPA was 0.38～59.00 ?g?mL-1,and the lowest detectable concentration of MPA was 0.38 ?g?mL-1. The recovery rate stood at 89.32%～97.63%; Both intra-day and inter-day RSD were less than 8.00%. Significant individual difference was noted among the patients treated with MMF in pharmacokinetic results, which was in line with the literature. CONCLUSION: This method is accurate and simple and applicable for the pharmacokinetics study of mycophenolic acid.

OBJECTIVE:To determine the contents of cholalic acid and hyodeoxycholic acid in Qingkailing suppository by HPLC-ELSD(high performance liquid chromatography with evaporative light scattering detection). METHODS: The analytical column was Diamonsil C18(250 mm?4.6 mm, 5 ?m) and the mobile phase consisted of 0.1% formic acid-acetonitrile(gradient elution) with the temperature of the drift tube of the light scattering detector set at 110 ℃ and the flow rate of the nitrogen gas at 2.0 L?min-1. RESULTS: The linear ranges of cholalic acid and hyodeoxycholic acid were 0.59～7.4 ?g(r=0.999 6)and 0.38～4.8 ?g(r=0.999 7),respectively,with their average recoveries at 99.20%(RSD=1.4%,n=6)and 98.57%(RSD=1.8%,n=6), respectively. CONCLUSION: The method is simple, accurate and well-separated, and it is applicable for the quality control of Qingkailing suppository.

OBJECTIVE: To study the protective effect of astragaloside on nerve of in vitro and in vivo model of Parkinson disease (PD).METHODS: MPP+ induced PC12 cell injury to establish in vitro PD model.PD mice model was induced by MPTP.MTT assay was used to determine the effect of astragaloside on survival rate of PC12 cell induced by MPP+ and the content of LDH and MDA.The effect of astragaloside on spontaneous behavior and the content of striatal DA and HVA were also detected.RESULTS: 25 ?mol?L-1,50 ?mol?L-1,100 ?mol?L-1 dose of astragaloside inhibited the decrease of survival rate of PC12 cell induced by MPP+ in dose dependent manner.10 ?mol?L-1,20 ?mol?L-1,40 ?mol?L-1 dose of astragaloside can obviously enhanced spontaneous behavior of model mice,and reduced the content of striatal DA and HVA.CONCLUSION: Astragaloside can protect nerve of in vivo PD and in vitro PD model.

Objective To explore the clinical application for various radiographic body in patients with osteoarthritis of the knee.Methods The exact data of various image body for the joint cavity of knee and patella-femur was got by making use of radiographic body for double knee joint weight-bear AP & LAT and flexuosity weight-bear PA,flexuosity weight-bear axial position for double patella and weight-bear double total length lower extremities.Results Data of the knee joint exterior angle for 75 patients with osteoarthritis of the knee weight-bear AP and keep down AP was measure.Software of statistics for partnership t test was employed and that P