This paper mainly discussed how Chinese archaic ideologist realize emotionality. The contents include five aspects: emotionality is related to human nature and morality; Chinese pay more attention to cultivate himself according to morality, control his emotion and need, keep harmonious relationship with others, emotionality is in association with or- gans. The author thought that the meaning of Chinese emotionality is not only the emotional reaction of oneself, but in- volves comprehensive features of individual emotional response, dealing with matters and behaviors, and it is closely relat- ed to the cultivation of morality and human nature and relative to human nature and morality. Chinese opinion is different from western psychologists’thoughts.

BACKGROUND:Compared with smooth titanium, titania nanotubes cannot only induce mesenchymal stem cels osteogenic differentiation and promote bone integration, but also be used as drug nanocarriers. OBJECTIVE:To prepare dexamethasone-loaded titania nanotube system and to test its drug release characteristics. METHODS:Titania nanotubes were prepared by electrochemical anodic oxidation, and dexamethasone was dripped onto the prepared titania nanotubes. Subsequently layer by layer self-assembly technology was employed to fabricate gelatin/chitosan multilayered structure on the prepared samples. Scanning electron microscope and contact angle test were carried out during the process of building the gelatin/chitosan multilayered structure. The drug release was measured by a ultraviolet spectrophotometer. RESULTS AND CONCLUSION:Under the scanning electron microscopy, the fabricated titania nanotubes had integral structure with even tube size of about 70 nm and arranged regularly, and the nanotubes were completely covered and sealed by the gelatin/chitosan multilayered membrane. Contact angle test results showed that ever since the fifth layer, contact angles changed alternately and displayed a zigzag profile. Ultraviolet spectrophotometer test results showed that when cultured for 3 hours, the cumulative drug release was about 32.7% and demonstrated an initial burst folowed by sustained release. When cultured for 24 hours, the cumulative drug release about 52.3%. However, after cultured for 7 days, little drug release was detected. And there was about 8.0%-10.0% dexamethasone of initial loading preserved in nanotubes.

Collagen triple helix repeat containing 1 (CTHRC1) can repair the injured vessel by limiting the deposition of collagen and promoting cell migration.CTHRC1 is mainly regulated by Wnt-PCP signaling pathway,transforming growth factor (TGF)-bone morphogenetic protein (BMP) signaling pathway and extracellular signal-regulated kinase (ERK)-matrix metalloproteinase 9 (MMP9) signaling pathway.Recent studies have identified that CTHRC1 is aberrantly expressed in gastrointestinal cancers and associated with the occurring and development of cancers.

OBJECTIVEThis study aims to construct a three-dimensional finite element model of a maxillary anterior teeth retraction force system in light wire technique and to investigate the difference of hydrostatic pressure and initial displacement of upper anterior teeth under different torque values of tip back bend.

METHODSA geometric three-dimensional model of the maxillary bone, including all the upper teeth, was achieved via CT scan. To construct the force model system, lingual brackets and wire were constructed by using the Solidworks. Brackets software, and wire were assembled to the teeth. ANASYS was used to calculate the hydrostatic pressure and the initial displacement of maxillary anterior teeth under different tip-back bend moments of 15, 30, 45, 60, and 75 Nmm when the class II elastic force was 0.556 N.

RESULTSHydrostatic pressure was concentrated in the root apices and cervical margin of upper anterior teeth. Distal tipping and relative intrusive displacement were observed. The hydrostatic pressure and initial displacement of upper canine were greater than in the central and lateral incisors. This hydrostatic pressure and initial intrusive displacement increased with an increase in tip-back bend moment.

CONCLUSIONLingual retraction force system of maxillary anterior teeth in light wire technique can be applied safely and controllably. The type and quantity of teeth movement can be controlled by the alteration of tip-back bend moment.

OBJECTIVETo study the influence of nasolabial angle alteration on facial profile attractiveness and investigate the perception differences in profile attractiveness among laypeople.

METHODSA young Chinese female with normal hard and soft tissue cephalometric values was chosen as a research object. Profile photograph was taken in a natural head position. Photoshop software was chosen to rotate the nose tip and upper lip, thus changing the degree and direction of nasolabial angle. A total of 33 different profile pictures were achieved. Thirty-three professional orthodontists and 64 non-professionals were chosen to score these 33 pictures.

RESULTSWhen the upper lip position was fixed, the profile was considerably attractive because the angle of nasal tip was not changed or altered. When the nasal tip rotation angle was fixed, profiles with a retroclined upper lip were considered significantly attractive by the layperson and professional groups. Regardless of the direction of the nasal tip rotation, the respondents considered the profile with a retroclined upper lip highly attractive.

CONCLUSIONThe soft tissue profile with a retroclined upper lip looks considerably attractive in Chinese female populations. Therefore, during an orthodontic treatment, appropriate retraction of the incisor is recommended to improve soft tissue profile attractiveness.

ObjectiveTo evaluate the theoretical knowledge level of Chinese students majoring in stomatology based on the problem-based learning (PBL).MethodsThe Cochrane reviewer's handbook was followed by.Domestic published articles from 1989 -2010 were selected by computer and handwork.All these retrieved studies were controlled clinical trials related to oral theoretical education and were conducted by PBL and the traditional teaching methods.The quality of included studies was critically evaluated and the data were analyzed by the RevMan 5.0.1 software.ResultsA total of 138 articles were selected,but only 8 were included.Significant differences were found when the data were pooled(P ＜ 0.01,I2 =80％ ) and random effect model was used for meta-analysis.The results showed that comparing with the traditional teaching methods,PBL can improve the theoretical score of dental students [ MD 5.39,95％ CI(2.20,8.58)],and sensitivity analysis showed that the result was stable.ConclusionPBL can improve the theoretical score of Chinese students majoring in stomatology.However,as part of the studies are not high quality literature,the above conclusion needs to be verified by more large sample-sized,rigorously designed randomized controlled clinical trials.

BACKGROUND: Ischemic preconditioning (IPC) can effectively improve the ischemic resistance of skeletal muscle and reduce the necrotic areas during ischemia-reperfusion; However, the impacts of IPC on contractile function of skeletal muscle during ischemia-reperfusion is unclear.OBJECTIVE: To investigate the effect of IPC on contractile function of skeletal muscle during ischemia-reperfusion.DESIGN: A randomized controlled study by employing experimental animals as subjects.SETTING: Tongji Medical College, Huazhong University of Science and Technology and the 252 Hospital of Chinese PLA.MATERIALS: The experiment was completed in the 252 hospital of Chinese PLA. Totally 14 healthy SD rats were involved.METHODS: A rat right hindlimb ischemic model was utilized, 14 SD rats were randomly divided into control group and experimental group. Control group: sustained ischemia for 4 hours and reperfusion of 1 hour. Experimental group: ischemia for 5 minutes and reperfusion for 5 minutes, after 3 cycles, ischemia for 4 hours and reperfusion for 1 hour continuously of IPC.The isometric twitch contractile force of the right gastrocnemius muscle was measured as a parameter indicating the muscle functional status during is chemia reperfusion. The changes of creatine kinase (CK), malondialdehyde (MDA) in blood sample and the uptake of 99Tcm-methylene diphosphonate (99TcmMDP) in skeletal muscle were measured after 1 hour of reperfusion.MAIN OUTCOME MEASURES: The impacts of IPC on contractile force of gastroenemius and serous CK, MDA and the uptake of 99TcmMDP.RESULTS: The muscle contractile force in the experimental group after four hours of ischemia was (14.32 ± 5.05) g or (25.71 ± 7.58) g after one-hour reperfusion, which was significantly higher than 0 g or (4. 73 ± 2.05) g of control group(P ＜0. 05). The serous levelsofCK [(104.85 ±9. 84) nkat/L], MDA [ (3 988.60 ± 455.92) nmol/L] and the uptake of 99TcmMDP [ (56.0± 8.1 ) mBq/g per minute] were significantly lower in the experimental group than control group [CK(136.36 ± 14.50) nkat/L, MDA (6 542.90±536.72)nmol/L, and 99TcmMDP (97.3 ±5.8) mBq/g per minute, P＜0.05, P ＜0.01].CONCLUSION: IPC can effectively ameliorate the contractile force of skeletal muscle and reduce the necrotic degree of skeletal muscle. Therefore, IPC has a protective effect on the contractile force of ischemic skeletal muscle.

Objective To explore the Chinese medical students′attitudes towards communication skills learning .And their communication skills are assessed by themselves in this study .Methods The cross-sectional survey of 127 undergraduates was completed in Sichuan University .Students were evaluated using Communication Skills Attitude Scale(CSAS) and Scale of medical student′s doctor-patient communication behavior which had been published at home or abroad .Results The mean PAS score of 127 students was 51 .43 ,which was 18 .50 points higher statistically significant than the mean NAS score 32 .94 .And there were no difference between undergraduates and eight-year medical students ,also between female and male .95 .28% students agree that“learning the doctor-patient communication skills and learning clinical skills are equally important” .Concerning Scale of medical student′s doctor-patient communication behavior ,the mean score for 127 students was 104 .93(total score is 150) .The mean scores for male was higher than male(P=0 .008) ,but the mean score for undergraduates and eight-year students had no statistic differ-ences .Conclusion Medical students have positive attitudes towards communication skills and have low self-assessments ,and we should enhance the communication skills training .

BACKGROUND:Whether the functional mandibular deviation wil cause osteal mandibular deviation and whether the mandibular growth pattern wil change are stil controversial. Vascular endothelial growth factor can increase the endothelial permeability, stimulate endothelial cel mitosis and promote angiogenesis and regulate the formation of bone. OBJECTIVE:To investigate the effect of functional mandibular deviation on the expression levels of vascular endothelial growth factor in condylar cartilage in growing rats. METHODS:Sixty four-week-old male Sprague-Dawley rats were randomly divided into control group (n=20) and experimental group (n=40). Each animal in experimental group received a nichrome appliance which was designed by our team. Lower mandible suffered from left functional deviation (2.1±0.3) mm to simulate functional mandibular asymmetry. RESULTS AND CONCLUSION:The number of vascular endothelial growth factor-positive cels in the sagittal posterior deviation region of rats with functional mandibular deviation was less than that in the non-deviation region at 7-28 days after model establishment. The number of vascular endothelial growth factor-positive cels was less in the sagittal central and coronal central deviation region than in the non-deviation region in rats with functional mandibular deviation at 14-28 days after model establishment, but was close to the control group. The number of vascular endothelial growth factor-positive cels was less in the coronal lateral deviation region than in the non-deviation region and control group in rats with functional mandibular deviation at 14-28 days after model establishment. These results indicated that after the mandible functional lateral deviation in adolescent rats, the expression of vascular endothelial growth factor was different in bilateral condylar cartilage, caused the alterations in osteoblast activity in cartilage, and possibly affected the normal growth and development of rat mandible, suggesting that functional mandibular deviation should be corrected as early as possible.

Objective To compare real-time fluorescence quantitative PCR with general PCR in detecting bovine and porcine derived materials in hydrolysate samples.Methods DNA were extracted from hydrolysate samples which prepared by different steps by real-time fluorescence quantitative PCR and general PCR.Results DNA of bovine and porcine could be detected by real-time fluorescence quantitative PCR and general PCR in samples prepared in the processes before enzymolysis solution, but not detected in samples from supermatant to the fourth ultrafiltrate.Conclusion Both real-time fluorescence quantitative PCR and general PCR can be applied to detect the fragments in hydrolysate samples.And real-time fluorescence quantitative PCR has the advantage such as rapid,convenient, non-environment-polluted, good repeatability, which improves the quality and efficiency.