Acrylic Resins ; Dental Materials ; Dental Restoration, Permanent ; methods ; Denture, Partial, Fixed, Resin-Bonded

The effects of pretreatment methods of Jerusalem artichoke tubers on microbial lipids fermentation with an oleaginous yeast strain Rhodosporidium toruloides Y4 were investigated in shaking flask culture.The yeast strain accumulated substantial amount of lipids using either purple-or white-skinned Jerusalem artichoke tubers as sole carbon and energy source.When cells were cultured on the extracted juice or the acidhydrolysate,cellular lipid content reached 40%(w/w),while cultured on the pulp,the white-skinned tubershadhigher lipid productivity,yielding 12.1 g lipids per100 g dried tubers.Major fatty acid constituents of microbial lipids were those contained 16-and 18-carbon atoms based on GC analysis,which is quite similar to traditional vegetable oil.Microbial lipids prepared from Jerusalem artichoke can be applied to biodiesel production.

Objective To investigate the value of ultrasound integrated backscatter (IBS) in quantitative analysis of in-traluminal thrombus in abdominal aortic aneurysm (AAA).Methods IBS of intraluminal thrombus in 29 patients were measured,including All (average image intensity) and SDI (standard deviation of image intensity).Meanwhile,different echoes and characteristics of IBS in thrombus were compared and pathologic analysis was performed.Results ①Individual All value of homogenous thrombus differed remarkably,SDI value was low.There was no significant difference about All in homogeneous group and adjacent cavity group (P>0.05).All and SDI value in adjacent wall group were higher than those in other groups (P<0.01).②According to pathologic analysis,cellulose contents were abundant in adjacent wall group,but fewer in adjacent cavity group and homogeneous group.Conclusion IBS might be regarded as a sensitive and specific method and a quantitative basis for estimating and predicting the rupture risk of AAA.

Objective To evaluate the relationship between smoking and p53 gene mutation in the lung cancer patients with Meta-analysis.Methods PubMed,Web of Science,ProQest and Medline were used to search all the relevant studies about the association between smoking and p53 gene mutation in the patients with lung cancer. Based on reviewing full text,the studies were selected and evaluated and the data was extracted.Statistical analysis was performed with Stata 1 2.0 software including the heterogeneity inspection, publication bias assessment, sensitivity analysis,effect consolidating and cumulative Meta-analysis.Results Totally 15 articles with 1 770 lung cancer patients were identified. 69.6% of the patients were smokers,30.4% were non-smokers.Overall,the smokers with lung cancer had a 2.70-fold higher risk for p53 gene mutation than the non-smokers with lung cancer (OR=2.70,95%CI=2.04-3.59).Conclusion p53 gene mutation is associated with smoking in the patients with lung cancer.The smokers with lung cancer have higher risk for p53 mutation than non-smokers.

Objective To investigate the expression of Foxp3~+ lymphocytes in breast carcinoma tissues and their correlation with other pathological factors,and to investigate the mechanism of action of Treg cells.Methods The expression of Foxp3~+ lymphocytes in the breast cancer tissue and non-cancerous tissue was detected by flow cytometry (FCM) in 30 breast carcinoma patients, and its correlation with other pathological factors was statistically analyzed by multiple linear regression analysis.The expression of TGF-β and IL-10 in the lymphocytes infiltrated in breast cancer tissue and non-cancerous tissue was measured by immunohistochemistry, and their correlation with the expression of Foxp3~+ lymphocytes was statistically analyzed by linear correlation dependability analysis. Results There was significant difference in the expression of Foxp3~+ lymphocytes between the malignant and non-cancerous breast tissues(P<0.05),and it was positively correlated with the clinical stage,blood vessel invasion and the matter of axillary lymph node metastasis(P<0.05). The expression of IL-10 in the tumor infiltrating lymphocytes was positively correlated with the expression of Foxp3~+ lymphocytes(P<0.05).Conclusion The expression level of Foxp3~+ lymphocytes is correlated with invasion and metastasis of breast carcinoma, and the IL-10 secreted by Foxp3~+ lymphocytes may be involved in this effect.Foxp3~+ lymphocytes can be used as an assistant marker for prediction and new therpeutic target of breast cancer.

A white-rot fungi Rigidoporus sp.W-1 which could produce laccase was isolated. The fermentation conditions in shaking flasks were investigated. The optimal carbon source was wheat bran and (NH 4) 2SO 4 was the optimal nitrogen source. The components of the medium were optimized by orthogonal experiment. When W-1 was cultured under the optimum conditions, the activity of laccase could get to 7.1U/mL in 7 days.A great amount of crude laccase could be obtained by adding fresh medium to the 7 days old mycelium.

ObjectiveTo evaluate the efficacy of rehabilitation associated with local intramuscular injection of botulinum toxic A (BTX-A) on spastic cerebral palsy (CP).Methods60 children with spastic CP were divided into experimental group and control group with 30 cases in each group. Cases of experimental group were treated with rehabilitation associated with local intramuscular injection of BTX-A. Cases of control group were treated only with rehabilitation treatment. The therapeutic efficacies of two groups were evaluated with physician rating scale (PRS) and activities of daily living (ADL) evaluation systems.ResultsImprovement of clinical evaluations index-PRS and ADL in experimental group was much more significant than that of control group (P<0.05). ConclusionRehabilitation associated with local intramuscular injection of BTX-A can improve the efficacy of spastic CP.

The stability of microbial flocculant (MBF) produced by Aspergillus sojae and its application to municipal thickened sludge dewatering were studied. The results showed that the MBF had high heat and acid-base endurance with high flocculating activity in a wide range of pH from 1.5 to 12. The MBF retained 96% of flocculating activity after 35 days preservation at 4℃, but in different pH the flocculating activity difference was very apparent after 35 days store at room temperature. The experimental results also demon- strated that the MBF was better than PAM and PAC in reducing specific resistance filtration. The optimal dose of MBF used for intensifying thickened sludge dewatering is 7%(volume fraction). And the more the volume of sludge is treated, the less the cost of MBF for unit volume sludge treatment.

Objective To discuss the operative procedures and clinical result of posteromedial and posterolateral approaches in treatment of posterior condylar tibial plateau fractures. Methods From January 2006 to June 2008, 21 patients of posterior condylar tibial plateau fractures were treated by posteromedial and posterolateral knee approaches. There were 12 males and 9 females. The age ranged from 28 to 68 years, with a mean of 39.5 years. Of the patients, 13 had resulted from a traffic accident and 8 had caused by a fall. As for the state of posterior condylar tibial plateau fractures, 7 patients had a medial condylar.fracture, 8 patients had a lateral condylar fracture and 6 patients had a bilateral condylar fracture. Results A follow-up lasted 12-24 months (mean 16.2 months ) in 21 patients. There was no infection, no varus or valgus of the knee, no nerve injuries and loosening or breakage of the screw. All cases had attained bone union. According to the Rasmussen functional scoring, the results were excellent in 12, good in 7 and fair in 2. The excellent and good rate of clinical results was 90.5%. Radiologic results were graded with the Rasmussen score to evaluate the reduction of fracture. There were excellent in 13, good in 7 and fair in 1. The excellent and good rate of clinical results was 95.2%. Conclusion Posteromedial and posterolateral approaches can facilitate the reduction and fixation for posterior condylar tibial plateau fractures. It has many advantages such as good exposure, less invasion and the excellent clinical results.

OBJECTIVETo investigate the effect of total flavonoids of astragalus on the expression of endoplasmic reticulum chaperone, calumenin and connecxin 43 (CX43) in suckling mouse myocardium with myocarditis caused by coxsackievirus B3 (CVB3).

METHODSThe primary culture of suckling mouse myocardium cells were randomly divided into control group, CVB3 infected group and total flavonoids of astragalus group. Firstly, to confirm the identity of the suckling mouse myocardium, α-SMA was monitored by immunohistochemistry method. Then the protein expression changes of endoplasmic reticulum chaperone-glucose regulatory protein 78 ( GRP78), calumenin and CX43 were detected by Western blot.

RESULTS(1) Compared with that of the control group, the GRP78 expression level in CVB3 infected group was improved, the expression levels of calumenin and CX43 were all reduced. (2) Compared with that of CVB3 infected group, GRP78 expression level was decreased, and the expression levels of calumenin and CX43 were increased in total flavonoids of astragalus group.

CONCLUSIONCVB3 infection may cause endoplasmic reticulum stress of rat myocardium cells by increasing the expression of GRP78 and decreasing the expression of calumenin and CX43. On the other hand, total flavonoids of astragalus can reduce the expression of GRP78 and increase the expression of calumenin and CX43.The results of this experiment may be closely related to the effects of anti-arrhythmia with viral myocarditis caused by CVB3.

Animals ; Astragalus Plant ; chemistry ; Blotting, Western ; Calcium-Binding Proteins ; metabolism ; Cells, Cultured ; Connexin 43 ; metabolism ; Coxsackievirus Infections ; drug therapy ; Endoplasmic Reticulum ; metabolism ; Endoplasmic Reticulum Stress ; drug effects ; Flavonoids ; pharmacology ; Heat-Shock Proteins ; metabolism ; Mice ; Myocarditis ; drug therapy ; virology ; Myocardium ; cytology ; Myocytes, Cardiac ; drug effects ; virology ; Rats