Objective:To study the effect of quercetin given during pregnancy and lactation period of obese rats on weight and expression of insulin-like growth factors-1 ( IGF-1 ) mRNA of the offspring . Methods:In the study , 8 healthy weaning female SD rats were randomly selected to feed the basal diet and as blank control group , and the others were fed with high-fat diet.When the average weight of the high-fat diet rats was 20% as many as the average weight of the control group , we believed the model succeeded .Then the female SD rats were mated and the pregnant rats were randomly divided into 5 groups , 8 rats in each .They were fed with high fat diet during pregnancy and lactation , and the obese pregnant rats were respectively irrigated with 0 mg/kg body weight ( high-fat control ) , 50 mg/kg body weight,100 mg/kg body weight , and 200 mg/kg body weight quercetin .The blank control group was fed with basic diet throughout the experimental period .The birth weight , the weights during the development of d7, d21, d56, and d98, and the expressions of IGF-1 mRNA in livers tissue of the F1 generation were measured.Results:The average birth weight of the F1 generation of high fat diet (HFD) group was sig-nificantly higher than that of the blank control group .Decreased offspring birth weight was observed with the intervention of quercetin , which effect remained to the delectation .The quercetin also reduced the ex-pression of IGF-1 mRNA in livers of the F1 generation , and this effect remained to the adulthood .The 200 mg/kg body weight quercetin was most significantly effective .Conclusion:The averaged birth weight of the F1 generation of obese pregnant rats was significantly increased , and quercetin could effectively in-hibit the expression of IGF-1 mRNA in livers of F1 generation to decrease cell proliferation and cell differentiation.

anti p62 2 in patients with cancers All of them were lower than that of autoantibody against full length p62 The frequency of autoantibody to full length p62 was significantly higher than that of anti p62 2 and anti p62 3, but no difference with anti p62 1 Totally positive rates of autoantibody against the three fragments were lower than those of full length p62 in patients with hepatocellular cancer, gastric cancer, colorectal cancer, esophagus cancer and breast cancer but with lung cancer Conclusion:Antigenic sites in p62 were mainly located in p62 1 and the integrity of p62 structure is important for antigenic expression

Objective To evaluate the clinical diagnostic role of dental computed tomography (CT) and three-dimensional reconstruction (3DR) compared with conventional dental periapical radiography (DPR) in the diagnosis of molar furcation involvement (FI). Methods Dental CT and 3DR were performed about a maxillary first molar and its alveolar bone diagnosed as FI II? by conventional probe technique, and the images were compared with that of DPR. Results The images of dental CT scans and 3DR showed not only the area, type and quantity of periodontal destruction, but also the complex stereoscopic anatomical vision and ambient spatial relationship around the molar. Especially, the images displayed the alveolar destructions of the dental buccal and palate site that could not always be demonstrated by DPR. The degree of the molar FI was defined as III? in fact. Conclusion Dental CT and 3DR have many superiorities and value, which can not be replaced by DPR, in the clinical diagnosis and prognostic judgment of molar furcation involvement.

extensive injury group.The intelligence quotient level of left frontal lobe group was lower than that of the right;PIQ of right temporal lobe group was lower than that of the left,VIQ of right temporal lobe group was higher than that of the left(P

Objective To investigate the expression and its rule of transferrin (Tf) in brain tissue at different time after experimental intracerebral hemorrhage (ICH) in rats. Methods The fresh quantitative autologous blood was infused into the right caudate nucleus of rat sterotaxically to build up experimental ICH model. At 6h, 24h, 72h and 7d after operation, the rats were sacrificed and the brain tissues were made for immunohistochemistry analysis of Tf. The water content of the brains was also assayed.Results Compared with saline group, Tf-immunostaining positive cells in the tissue surrounding hematoma and in the ipsilateral pallium in ICH rats were increased significantly during 7 days, peaked at 72 hours ( P

Objective To investigate the expression of neuron nitric oxide synthase (nNOS) mRNA of brain tissue at early stage of intracerebral hemorrhage (ICH) in rats and the intervention effect of Didangtang.Methods 72 male Sprague-Dawley rats were randomly divided into four groups: intracerebral hemorrhage group, Didangtang treatment group, NOS inhibition group and normal saline group. Quantitate fresh autologous blood was infused into right caudate nucleus of rat sterotaxically to build up experimental ICH model and normal saline was instead in control group. The neurological function deficit scores were observed by Bederson method (3 grades) at 6 h, 24 h and 72 h after operation. At the same time points, the rats were sacrificed and the brain tissues were taken out for the measurement of nNOS mRNA by technique of hybridization in situ.Results Neurological function deficit scores of the rats were significantly improved both in intracerebral hemorrhage group and Didangtang treatment group at 72 h after operation(all P

Objective To evaluate the clinical effect of CYPHER TM (rapamycin) stent in treatment of left anterior descending (LAD) long lesion. Methods From October 2002 to April 2003, 65 patients with coronary heart disease (CAD) were treated with CYPHER TM (Cordis) stent and 65 stents were planted in 53 LAD lesions. Among the patients with LAD lesions, 42 cases were long lesions (≥20 mm). The length of lesion was from 20 mm to 50 mm (28.2?8.8 mm), the degree of stenosis before procedure was 88.9%?8.5%, and the vessel diameter before procedure was 3.0?0.9 mm. Three lesions were chronic total occlusion (CTO) lesion. Two lesions were in-stent restenosis. 12 lesions over 35 mm long were treated with two overlapped stents to cover the whole lesion. 30 lesions were treated with only one stent. We observed the procedure success and complication rates. The occurance of angina, myocardial infarction, sudden death, and the revascularization rate during the in-hospital and 6 months follow up. Results Immediate procedure success rate was 100% with residual stenosis of 5.0%?4.8%. All the lesions were covered fully by stents and the coronary flow reached TIMI grade three. No new dissection was observed in the optimal of stents. Only one patient was diagnosed as myocardial infarction after procedure and in-stent thrombolysis was proved by coronary artery angiography (CAG). During the 6 months follow-up, the symptom of angina was disappeared in 38 patients and alleviated in 4 patients. Eight patients received CAG in 3-6 months and no restenosis was observed. Conclusion Drug eluting stent (CYPHER TM) implantation is a safe and efficient therapy in treating patients with LAD long lesion, and short term follow-up results were better than the general coronary stents.

Objective To investigate effect of a new lumbar dynamic internal fixation system(DIFS)on the stability and intradiscal pressure of lumbar segment.Methods Eight fresh calf lumbar specimens were collected to build test models,which were loaded with pure moments of 8 N·m in flexion/extension,lateral bending,and rotation planes.The test states included intactness,destabilization,dynamic fixation,semi-rigid fixation,and solid fixation.The data were collected from the third loading cycle to determine range of motion and neutral zone of corresponding segments,and the intradiscal pressure.Results Destabilization significantly increased segmental range of motion and neutral zone in three motion planes without obvious influence on intradiscal pressure.The three fixation systems were all able to stabilize and load destabilizing segments.DIFS restored the range of motion of unstable segment to 77％,60％,61％ and 70％ of the intact level in anterior flexion,posterior extension,lateral bending and rotation planes.Meanwhile,DIFS bore 45％,29％ and 40％ of tbe intradiscal load in lateral bending,rotation and flexion directions,but 100％ of the intradiscal load in back extension.The stability and intradiscal pressure of adjacent segments were not affected by the test states.Conclusion DIFS can effectively restore range of motion of unstable segments and share appropriate intradiscal load in most directions.

Objective To create a new animal model which can preferably simulate the human's scoliosis. Methods Forty-five 4-week-old female Wistar rats were randomly divided into 3 groups. Group 1 underwent subcutaneous left scapula-to-contralateral ilium tethering procedure with a non-absorbable suture,which made the spine convex towards right side, and then removed forelimbs and tails of rats to create the bipedal rats. Tethering sutures were cut at postoperative 8th week, and the spines of rats were then observed during 2 weeks. Group 2 were the same as group 1 but in which scapula-to-ipsilateral ilium tethering procedure was performed. Group 3 were the same as group 1 except that the bipedal rats were not created. All postoperative rats were fed separately in special high cages for group 1 and group 2 or in standard cages for group 3. Operative duration, postoperative first food-taking duration, operative mortality, body weight, relative length of the spinal cord, Cobb angles in the coronal and sagittal planes, modeling mortality, the incidences of re-operation, scoliosis and vertebral rotation among the 3 groups were compared. Results There were no significant differences in the degree of scoliosis or kyphosis among the 3 groups at the time of initial tethering. At 2 weeks after tether release, the incidence of vertebral rotation was significantly higher in group 1 than group 2 (86.7% vs. 33.3%), and the degree of scoliosis or kyphosis was significantly larger in group 1 than group 3 (coronal plane: 30.2°±10.4° vs. 20.5°±7.7°; sagittal plane: 55.6°±10.0° vs. 43.8°±6.3°). There was no significant difference in postoperative first food-taking duration among the 3 groups, and no death of rats occurred in all groups during intraoperative and postoperative 6 hours, although operative duration was significantly longer in group 1 or group 2 than group 3. There were no significant differences in body weight,relative length of the spinal cord, modeling mortality, the incidences of re-operation and scoliosis among the 3 groups. Conclusion The bevel and axial loads of the vertebrae can significantly enhance the incidence of vertebral rotation and the degree of kyphoscoliosis, respectively. The scoliosis model created by scapula-to-contralateral ilium tethering procedure in bipedal rats can preferably simulate the human's scoliosis.

Objective To explore the theories of medical waste pyrolysis system composition, waste pyrolysis process, flue gas treatment process and etc.Methods The composition and process of pyrolysis treatment system and flue gas cleaning system were studied with the theories of configuration design, physico-chemical analysis, thermodynamics, fluid mechanics and etc.Results The schemes were put forward for on-board pyrolysis furnace and flue gas cleaning system.Conclusion On-board medical waste pyrolysis system can be used to treat the infectious waste in public medical emergencies, and thus is worth popularizing practically.