Depression ; classification ; diagnosis ; Diagnosis, Differential ; Humans ; Medicine, Chinese Traditional

Objective To investigate the influence of tooth preparation surface roughness and different dental ce-ments on adhesive strength, and provide some reference information on the selection of dental rotary instruments and dental cements. Methods Sixty dentin samples were prepared and randomly divided into 3 groups. Samples from group A, B and C were grinded by diamond burs with grit-sizes of 125μm, 60μm and 28μm respectively. Two samples selected randomly from each group were observed under scanning electron microscope (SEM) for the surface microprofile. The remaining 18 samples from each group were evenly divided into 3 subgroups. Each subgroup was teamed with one of 3 dental cements:zinc polycarboxylate cement (ZP), glass ionomer cement (GI) and resin-modified glass ionomer cement (RMGI). Co-Cr alloy casts were cemented onto the dentin samples, and the adhesive strength was tested. Meanwhile, the types of failure were re-corded for each sample. Results The surface roughness of tooth preparation samples showed a downward trend in group A, group B and group C. Among the involved 3 dental cements, RMGI exhibited the highest adhesive strength, and there was no significant difference in the adhesive strength between ZP and GI. Among different combination subgroups, A-RMGI had the highest adhesive strength, B-RMGI run the second place, while C-ZP and C-GI were proved the lowest. However, there was no interaction between the two factors. Furthermore, group A mainly showed failure typesⅠandⅡ, group B evenly showed all the failure types and group C mainly showed failure typesⅡandⅢ. Conclusion The adhesive strength is related to the surface roughness. RMGI exhibits the highest adhesive efficiency. There is no obvious compatibility in particular surface roughness and dental cements.

The effect of Hippophae rhamnoides L. juice (HRJ) on the immunologic function and the inhibition of tumor growth in mice were reported. Kunming mice were administered orally with HRJ for 7 days. The IL-2 produced by splenocytes, the reactivity of splenocytes to IL-2 were markedly stimulated (P

Objective To report the technique and outcome of combined transplantation of bilateral vascularized fibulas to repair the segmental femoral defect Method In the period from October 1984 to May 1992, bilateral vascularized fibula transfer was done to treat femoral defects in 9 cases, in which there were 5 cases of bone tumor, 3 cases of pathological fractures following chronic osteomyelitis and 1 case of posttraumatic bone defect The length of the transferred fibulas ranged from 12 cm to 22 cm and averaged 16.25 cm Result Except 1 case in which thigh amputation was done 6 months after operation because of local recurrence of the chondrosarcoma, all the transferred fibulas united solidly with the host bones 3-6 months after operation The repaired limbs started weight-bearing at the third to seventh postoperative month Conclusion To repair a femoral defect over 10 cm in length, combined transfer of bilateral vascularized fibulas is the treatment of choice with short therapeutic process and good results.

Objective:To observe the effects of real-time and retrospective analyze of cardiac remote monitoring based on differential threshold method.Methods: Xin An Bao XAB - M3AG ECG remote monitoring system which based on the differential threshold method of improvement being used to determine the parameters of electro cardio signal was installed in 8957 patients.Results: We had collected all 46967 ECG real-time data, including 9564 manual transmission, 25830 timing transmitting and 11573 automatically transmission. 5728 of automatically transmission was with arrhythmia (49.5%) and the others of automatically transmission was attribute to inference.Conclusion: The results showed that algorithm complexity based on the improved differential threshold method is low, the precision is high and it has a good real-time performance. It realized the real-time monitoring of ECG.

Hemodynamic effects of Laigechongji (LGCJ)were studied in anesthetized open-chest dogs. LGCJ(in doseof 8. 5 and 17.0g/kg,id. )decreased significantly SBP, DBP, MAP, HR, LVSP, +dp/dt max and TPVR, 30~45 mins after medication,and continued for about 90~ 150mins. However,they had no significant effects ondp/dt max,LVEDP,CO,CI,SV and SI. These results suggest that LGCJ may cause hypotension,and its hypotensive effects may be related to its bradycardiac,negative inotropic and vascular resistance reducing activities.

OBJECTIVE An understanding of the complex anatomy of the anterior skull base is crucial for the surgeon doing endoscopic surgery. The anatomic data of the olfactory sulcus and adjacent structures in Chinese patients were defined using 3-dimensional reconstruction images. The surgeon is encouraged to develop a detailed pre-operative surgical plan by utilizing these dynamic anatomical observations to avoid intracranial injury. METHODS The paranasal sinus CT scanning images of 100 adults were reconstructed for observation using EBW2.0 software and multiplanar reformation. All data obtained were in the coronal plane from the anterior point of the olfactory sulcus. The cribriform plate depth as compared to the ethmoid roof and adjacent structures, was measured bilaterally. Data obtained on adjacent structures include the vertical height of the lateral lamella of olfactory sulcus, the horizontal distance between the cribriform plate and the orbital lamella, the length of the middle turbinate, the height of the orbit, and the vertical distance between the cribriform plate and the nasal floor. RESULTS The olfactory sulcus was classified into three types: platform type (60 %), sloping type (17 %) and mixed type(23 %), as distinguished from Keros classification. In this study the vertical height of the lateral lamella of olfactory sulcus was (5.03 ± 0.17) mm (R) and (5.39 ± 0.19) mm (L) in platform type, and (2.79 ± 0.49) mm (R) and (4.72 ± 0.49) mm (L) in the mixed type. There were statistically significant differences between the right side and the left side in these two types (P＜0.01). The horizontal distance between the cribriform plate and the orbital lamella on the same side was significantly different between the platform type and the mixed type of olfactory sulcus. A similar result was observed for the vertical distance between the cribriform plate and the nasal floor. Gender differences exist in the horizontal distance between the cribriform plate and orbital lamella on the same side and the vertical distance between the cribriform plate and the nasal floor. CONCLUSION Different types of olfactory sulcus have distinct characteristics, hence care which must be taken into account when doing endoscopic surgery.

10.3969/j.issn.2095-4344.2013.26.006

OBJECTIVE　To study the effects of Panax quinquef olium 20S-protopanaxdiol saponins extracted from the leaves of panax qu inque-folium (PQDS) on the hemodynamics and cardial oxygen metabolism in dogs with acute myocardial infarction (AMI).METHODS　The paramete rs of hemodynamics and cardial oxygen metabolism were determined by using the mo del of ligation of LAD in the anaesthetized open-chest dogs.RESULTS 　In dogs treated with PQDS (in a dosage of 10 and 20 mg*kg-1 iv infusion),the myocardial blood flow (MBF) was increased and coronary vascular re sistance (CVR) was decreased significantly.The heart rate (HR) was slowed.The ar terial blood pressure (ABP),left ventricular pressure (LVP),the maximum rise rat e of left ventricular pressure(+dp/dtmax),left ventricular work index (LVW I) and total periphery resistance(TPR) were reduced,whereas the stroke index(SI) and cardiac index (CI) were increased.In addition,the decreasing range of the m aximum decline rate of left ventricular pressure(-dp/dtmax) and the rising range of left ventricular end diastolic pressure (LVEDP) were reduced.Meanwhile the cardiac oxygen consumption,myocardial oxygen utilization rate and cardiac o xygen consumption index were also decreased.CONCLUSION　PQDS had protective effects on acute myocardial ischemia including improving heart fu nction,decreasing cardiac oxygen consumption and increasing myocardial blood flo w,etc.

Objective To investigate the influence of Tanyu-Tongzhi (TYTZ)recipe on Rho/Rho kinase signal transduction pathway of myocardial ischemia-reperfusion injury in high fat-fed rats.Methods 60 SD rats were divided into 5 groups randomly,a sham-operated group,a model group,a western medicine control group,a high-dose group and a low-dose group of TYTZ recipe.The model of ischemia reperfusion of the myocardium was reproduced by ligation of left descending artery for 30 min followed by releasing the ligation for 2 hours in rats.The downstream substrates of ROCK myosin light chain (MLC) phosphorylation expression of myocardial tissues in rats were detected by Western blotting method.The levels of RhoA,ROCK Ⅱ mRNA were determined with RT-PCR.Results Compared with the model group,the expression of p-MLC and RhoA,ROCK Ⅱ mRNA were lower in low-dose group of TYTZ,there were significant differences between the two groups(P=0.004、0.003、0.018、0.004,P＜0.01).Conclusion The TYTZ Recipe can protect myocardium from MI/RI.The mechanism of action was related to its inhibiting the protein expression of RhoA,ROCK Ⅱ and p-MLC,restraining the activation of Rho/Rho kinase signal transduction pathway.