Changhai hospital begins to practice resident standardization training.This article introduced the basic instance of it, analyzed and summarized the experiences and problems in the process.At last we give some advices to improve the job of resident standardization training.

Objective To observe the behavioral and the histopathology changes and expression of NR2B subunit in spinal dorsal horn in chronic constriction injury (CCI) rats after pulsed radiofrequency (PRF). Methods Forty-eight adult Sprague-Dawley rats were randomly divided into Sham-Sham (SS), Sham-PRF (SP), CCI-Sham (CS) and CCI-PRF (CP) groups. The right sciatic nerves (SNs) of the CS and CP groups were ligated to create the CCI model. For the SS and SP groups, the right SNs were separated without ligation. The CP and SP groups accepted PRF at the ligation site 15 days after modeling, while the electrode was placed in rats in the SS and CS groups without elec-tricity. The hindpaw withdrawal threshold (HWT) was measured before and 3, 7, 11, 15 days after modeling, and 1, 3, 7, 11, 15 days after treatment. The right SNs at ligation sites were assessed with optical microscopic score 15 days after treatment, and the NR2B expression in the L4-6 spinal dorsal horn were determined with Western blotting. Results HWT was significantly shorter in the CS and CP groups than in the SS and SP groups after modeling, and was more in the CP group than in the CS group. Under the optical microscope, the axonal diame-ter and myelin sheath thickness increased in the CP group compared to those in the CS group (P<0.01), the NR2B expression was less in the CP group than in the CS group after treatment (F=10.769, P<0.05). Conclusion PRF may reduce hyperalgesia and repair damaged SNs in CCI-induced neuropathic pain, which may associate with inhibition of the NR2B subunit expression in spinal dorsal horn.

Objective To reveal the nature of the outcome evaluation reflected by event-related potentials in evaluation process.Methods 16 College students were required to make attribution about their performance during a task,event-related potentials were recorded by NeuroScan ERP and dipole source location analyzed by Curry4.6.Results ①The feedback-related potential (FRN) was elicited by the negative outcomes.②The amplitude of the FRN was larger on the condition of fail to attribute the responsibility (-6.24μV) than the contribution (-4.67μV),there was significantly statistical meaning(F(1,15)=26.42,P<0.001).③The overall FRN magnitudes were more negative-going at Fz(+7.55μV) than Fcz(-6.54μV),Cz(-5.20μV),CPz(-4.16μV) and Pz(-3.83 μV),there was significantly statistical meaning(F(2,8)=8.12,P<0.01).④Dipole source location analysis showed that the neural generator of FRN may be the anterior cingulated cortex (ACC)(Talairach coordinates:-16.3,-73.1,13.3;residual variance:1.98%).Conclusion The feedback-related potential (FRN) is sensitive to the negative outcome, and affected by the intensity levels of the expectation for the outcome.FRN may reflect a evaluation process that the actual outcome is unexpected and worse than the expectation.

Objective To study the effect of the complexus of radix salviae miltiorrhizae and lignstrazin (DCs) on the learning and memory impairment in Alzheimer disease rats. Methods Rats were randomly divided in- to 5 groups(10 rats/group):normal eontrol group, Alzheimer disease model group toxified with AlCl3 and D-gal,3 groups toxified with AICl3 and D-gal,whieh were treated with the different drugs including piracetam and DCs1,2. After 80 days,step-through and morris water maze experiments were used to detect the learning and memory ability. Results Compared with Alzheimer disease model group,DCs obviously improved the learing and memory ability of Alzheimer disease rats,it is increased significantly that active reaction, and the number of active avoidance, improve achievement, evasion failed to reduce the number of passive evade significantly shorten the delay time in Des-treated group. Conclusion DCs markedly improved the learing and memory ability of Alzheimer disease rats.

Adult ; Aged ; Body Mass Index ; Case-Control Studies ; Humans ; Male ; Middle Aged ; Neck ; anatomy & histology ; Sleep Apnea, Obstructive ; pathology ; physiopathology ; Young Adult

Objective: To study the relationship between personality type and risky decision-making.Methods: By means of cluster sampling, 210 undergraduate students from military school were investigated with MBTI-G personality type scale and self-made decision-making scale. We randomly divided 210 undergraduate participants into two groups. The first group (N=109) received a positive format, the second (N=101) a negative format.Results:First, in positive framing, the results of analysis in dimensions of Sensing-Intuition and Thinking-Feeling revealed a significant relationship between option and personality types. In negative faming, the results of analysis in dimensions of personality types indicated that options appeared to be independent of the personality types. Second, the preferences for the risky option of the subjects scoring highly on Introversion, Sensing, Feeling and Perceiving were almost the same as that for the safe option in the positive framing, their preferences for the risky option were significantly more obvious than that for the safe option in the negative framing. Subjects scoring highly on Thinking and Judging were likely to prefer the risky option in both positive and negative framing, their preferences for the risky option were more distinct in the negative frame(?2=4.39,P=0.036;?2=10.47,P=0.001). The analyses in Extraversion and Intuition indicated that options appeared to be independent of the personality type. Conclusion: Personality type is related to decision-making behavior and is predictor of risk-taking.

Objective: To find out some clues in the personality types of Chinese dental school applicants and provide useful information in the cross-culture research between western and eastern countries, and supply guidance for Chinese educators.Methods:The Chinese version of MBTI (Form G) was used to test the personality styles of 332 dental school applicants from the mainland of China, and the personality styles of dental school applicants between Chinese and English were compared. Results:In mental aptitude, the percentage of introversion (I) type in Chinese samples (56.8)was higher than Extroversion (E) type(43.2), while it was contrary in English samples (15.7 vs. 84.3)and the difference was significant (?~2=111.49, P

AIM: To investigate the potential role of angiopoietin-2 in the rats model of lipopolysaccharide (LPS)-induced acute lung injury (ALI). METHODS: Wistar rats were randomly divided into four groups(n=10): control group; in LPS groups, rats were divided into three subgroups, treated with different dosage of LPS (2 mg/kg, 4 mg/kg and 8 mg/kg). ALI model was established by intravenous injection with LPS, while control group was with NS. The lung histopathology change was observed by HE stain. Western blot was used to measure the expression of Ang-2 in serum. RESULTS: Histologically, alveolar edema, hemorhag, and massive inflammatory cell, infiltration were observed in LPS groups, but not in control group. The pathological score in LPS groups were significantly higher than that in NS group. Compared with 2 mg/kg LPS group, the pathological score in 4 mg/kg LPS group was significantly higher. While the pathological score in 8 mg/kg LPS group was higher than those in other LPS groups. The expression of Ang-2 protein in plasma was significantly higher in LPS groups, but weak in control group. Compared with 2 mg/kg LPS group, the expression of Ang-2 protein in 4 mg/kg LPS group was significantly higher. While the expression of Ang-2 protein in 8 mg/kg LPS group was higher than those in other LPS groups.The expression of Ang-2 protein in plasma were significantly positively correlated with the pathological score (r=0.862, P<0.05). CONCLUSION: Ang-2 could participate the pathological course in the rats model of LPS-induced acute lung injury. The expression of Ang-2 protein in serum was significantly positively correlated with the extent lung injury.

Objective The purpose of present study was to compare the efficacy of topical dimethyl sulfoxide(DMSO),intralesional hyaluronidase(HAase)and intralesional HAase plus topical DMSO on skin damage caused by docetaxel extravasation in a rat model.Methods After the establishment of animal model of docetaxel extravasation on each hind limb in 30 SD rats,the animals were assigned randomly into 6 groups with 5 rats for each group:topical DMSO group(TD),intralesional HAase group(IH),IH plus TD group(IH+TD),topical normal saline group(tNS),intralesional NS group(iNS),and control group(C).The extent of skin damage and the healing time were observed and compared.Results The extent of skin damage was different among the 6 groups:severer skin damage was seen in tNS,iNS and C groups compared with TD,IH and IH+TD groups.The healing time was significantly shorter in TD group than in both tNS and C groups [(19.10?2.13)d vs(23.70?2.41)d and(25.70?2.26)d,P

0.05).[Conclusion]There are the same correct effectiveness and the biomechanical stability in the treatment with the slidable pedicle screw system and universal pedicle screw system,meanwhile there is no effect in the adolescent growth.