2.Hemodynamic Effects of Laigechongji(LGCJ)on Anesthetized Open-Chest Dog
Dayan SUI ; Zhongzhi LU ; Xiaofen YU
Chinese Traditional and Herbal Drugs 1994;0(04):-
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.
3.Repair of segmental femoral defect by combined transplantation of bilateral vascularized fibulas
Shuping SUI ; Bingfang ZENG ; Zhongjia YU
Chinese Journal of Microsurgery 2000;0(02):-
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.
4.EFFECTS OF HIPPOPHAE RHAMNOIDES L. JUICE ON IMMUNOLOGIC AND ANTITUMOR FUNCTIONS
Liping YU ; Zlliren SUI ; Hongxue FAN
Acta Nutrimenta Sinica 1956;0(03):-
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
5.The Influence of Surface Roughness of Tooth Preparation and Cement Compatibility on the Adhesive Strength
Lei SUI ; Huifeng ZHANG ; Pei YU
Tianjin Medical Journal 2014;(1):31-34
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.
6.Real-time and retrospective analyze of cardiac remote monitoring based on differential threshold method
Chuntao DONG ; Wei SUI ; Hongliu YU
China Medical Equipment 2014;(11):52-54
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.
7.Bone cement distribution patterns of osteoporotic vertebral fractures with intravertebral clefts after vertebroplasty
Liang LI ; Xuezhong YU ; Haitao SUI ; Yuebing REN ; Guangquan LIU
Chinese Journal of Tissue Engineering Research 2013;(26):4789-4796
10.3969/j.issn.2095-4344.2013.26.006
8.Influence of the Altered-Cast Impression Technique on Distal-Extension Alveolar Ridge Morphology and Restorative Result
Lei SUI ; Honghong LIU ; Pei YU ; Ping GAO
Tianjin Medical Journal 2014;(4):352-355
Objective To investigate the impact of the modified cast impression technique on distal-extension alve-olar ridge morphology of partially edentulous casts and the restoration outcome of removable partial dentures (PRDs). Meth-ods Fifty-four patients with mandibular free-end dentition defect were selected. Impressions were taken from each patient using both modified cast technique and conventional technique. Coronary cross-sections of the casts were scanned from dis-tal to mesial extension;the images were compared to reveal morphological differences. And the relationship between these differences and location of the cross-sections were analyzed. After the patients were evenly divided into two groups per paired design, the impressions were taken using the respective modified cast and conventional impression techniques to pre-pare RPDs. The subsequent comparisons between the two groups included frequency of adjustments during the adaptive phase, masticatory efficiency of the denture at ending of the adaptive phase and visible movement of the extension base dur-ing mastication. SPSS 16.0 software was used for statistical analysis. Results The number of pixels in the same cross-sec-tion was less in the impression taken with modified cast technique than that with conventional technique. And their differ-ence is of statistical significance (P < 0.01). The difference in the number of pixels (D) was negatively correlated with the number of cutting and grinding, and N (location of the cross-sections). In addition, there were statistically significant differ-ences in frequency of adjustments during the adaptive phase (times:1.12 ± 0.77 vs 3.41 ± 0.82), masticatory efficiency of the denture (0 vs 18.5%) and visible movement of the extension base during mastication (96.3%vs 74.1%) between the modified cast group and conventional group. Conclusion Morphology of distal-extension alveolar ridge of the casts differs signifi-cantly between the impressions obtained with modified cast technique and the impressions obtained with the conventional technique;the difference increases with greater distance to the distal surface of the terminal abutments. The restoration out-come of RPDs is significantly better with the modified cast impression technique than with the conventional impression tech-nique.
9.Effect of 20S-protopanaxadiol saponins on blood lipid metabolism and antioxidative activity in hyperlipidemia rats
Dayun SUI ; Xiaofeng YU ; Shaochun QU ; Huali XU
Chinese Traditional and Herbal Drugs 1994;0(04):-
Object To observe the effect of 20S-protopanaxadiol saponins from Panax quinquefolium (PPDS) on total cholesterol, lipoprotein cholesterol metabolism and antioxidative activity in experimental hyperlipidemia rats. Methods The total cholesterol (TC), lipoprotein cholesterol, and lipid peroxidation (LPO) contents, prostaglandin I 2 (PGI 2), thromboxane A 2 (TXA 2) levels, superoxide dismutase (SOD) activity and blood viscosity were measured in hyperlipidemia rats which have been given PPDS 25, 50, 100 mg/(kg?d) by ip, continuously for 12 days. In addition, fat accumulation in liver was observed. Results Triglyceride (TG), TC, low density lipoprotein cholesterol (LDL-c) in serum, TXA 2 in plasma, LPO in serum and liver, and blood viscosity were decreased significantly; and high density lipoprotein cholesterol (HDL-c) in serum, PGI 2 in plasma, and SOD in serum and liver were significantly increased by given PPDS [50, 100 mg/(kg?d)] in experimental hyperlipidemia rats. Moreover, PPDS can decrease TC/HDL-c and LDL-c/HDL-c ratio, increase PGI 2/TXA 2 ratio, and inhibit fat accumulation in liver. Conclusion PPDS could inhibit arteriosclerosis by improving cholesterol and lipoprotein-cholesterol metabolism, suppressing LPO, and increasing the activity of SOD.
10.Protection of Shexiang Antithrombosis Pill on experimental cerebral ischemia in rats
Hongmei ZHAO ; Xiaofeng YU ; Shaochun QU ; Huali XU ; Dayun SUI
Chinese Traditional and Herbal Drugs 1994;0(07):-
Object To observe the protective effect of Shexiang Antithrombosis Pill (SATP) on experimental cerebral ischemia in rats. Methods In cerebral ischemia model induced by bilateral common carotid artery clamping and controlled hemorrhage to a mean arterial pressure of 6.7 kPa (50 mmHg), cerebral water content, SOD activity, MDA, Ca 2+ , and LA contents were measured and the ischemic tissue pathology was observed. Results SATP can decrease cerebral water content, lessen pathological change, increase SOD activity and decrease MDA, Ca 2+ , and LA contents. Effect of water pill is better than that of honey pill. Conclusion SATP can protect the cerebral tissue from ischemia injury by suppressing lipid peroxidation. This effect may be related to increasing antioxidase activity and decreasing acidosis of LA and overload of calcium in cell.