Objective To investigate the mental health status of patients with coronary artery stent implantation. Methods Symptom Checklist (SCL-90) was used to evaluate the mental health conditions of 218 patients after coronary artery stent implantation with man-machine conversation and computer evaluation. Results It was found that 48 cases in excellent mental health, accounting for 22.02%; 56 cases in good mental health condition, accounting for 25.69%; 82 cases in normal mental health condition, accounting for 37.61%; and 32 cases in poor mental health, accounting for 14.68%. In addition to the interpersonal factor, hostility and psychosis factors, the other six factors’overall average score was more than 2. More than 50% of the staff scored greater than 3, and their average positive factors were greater than 43 items in somatization, depression, anxiety and fear. Conclusion The patients after coronary artery stent implantation suffered from many psychological problems.

ObjectiveTo evaluate effect of music electrical stimulation on functional headache . Method78 patients were selected randomly from the patients who were cured after two years. Result46 patients are cured completely, 18 patients get better than before, accounting for 82.05%. Conclusion Music electrical stimulation is effective for functional headache.

Objective To investigate the blood-retinal barrier(BRB)function of porcine retinal pigment epithelial(RPE)cells cultured in vitro. Methods Primary porcine RPE cells were cultured,and the third generation were inoculated in a microporous filter with the filter membrane of polyvinylpyrrolidone(PVP)-free polycarbonate membrane.After 1,2,3 and 4 weeks of culture,the surface of filter membrane was observed by light microscope,and after 2 weeks of culture,the section of filter membrane was observed by light microscope and transmission electron microscope.Transepithelial electrical resistance(TER)was detected and the permeability was measured with fluorescein sodium(FS)and horseradish peroxidase(HRP). Results Primary porcine RPE cells were cultured successfully.RPE cells converged1week after inoculation; 2 and 3 weeks after inoculation,the density of RPE cells did not changed obviously; 4 weeks after inoculation,the density of RPE cells decreased.The characteristics of polarized growth of monolayer were found in RPE cells on the surface of filter membrane; 2 weeks after inoculation,the TER of RPE cells was(97.44?11.36)?/cm~2 which maintained till the 3rd week after inocubation.After incubated for 30 minutes,only 0.27% of FS and 0.17% HRP reached the inferior filter membrane,and the permeability rate of SF with low molecular weight was higher than which of HRP with high molecular weight. Conclusions The filter with PVP-free polycarbonate membrane may be used to set up the model of RPE cells with polarized growth of monolayer and investigate the barrier function of RPE cells.

Objective To observe the psychological state in patients accepting prosthesis and the effect of psychological intervention on them. Methods38 patients were assessed with Symptom Checklist 90 (SCL-90) before, after prosthesis fitting, and after rehabilitation training and psychological intervention. ResultsThere were 33 cases with somehow disorder in some factors of SCL-90 before prosthesis fitting. Except somatization, interpersonal and psychotic factors, all the other factors increased after fitting （P<0.05）. All the factors scored lower after rehabilitation and intervention （P<0.05）. ConclusionPatients accepting prosthesis appear with some psychological disorders, and get worst after prosthesis fitting. Rehabilitation training and psychological intervention can relieve these disorders.

Objective To study the effect of homeobox genes CDX1 and CDX2 on the phenotype of esophageal adenocarcinoma cells.Methods Esophageal adenocarcinoma cell line SEG-1 was transfected with CDX1 or CDX2 cDNA.The morphology,growth rate,division index and tumorigenicity were analyzed.Results The expression of CDX1 or CDX2 leaded to occurring adeniform-like manifestation.The growth rate,division index and tumorigenicity were reduced,especially by CDX2.Conclusion CDX1 and CDX2 all could increase differentiation of esophageal adenocarcinoma cells and reduction of its malignancy.

Objective Nerve growth factor (NGF) is thought to be one of regulating factors of cellular function during the visual plasticity period. Levodopa is a neurotransmitter in central nerve system. Its mechanism of improving the visual function in amblyopia is unclear. Present study was to observe the role of levodopa in treating monocular deprived amblyopia and explore the effects of levodopa on the expression of NGF in visual cortex. Methods The animal models of monocular form deprived amblyopia were established in the right eyes of 12 4-week-old domestic cats by suturing the eyelid for 2 weeks and then the left eyes were reverse sutured. The 6 cats from models received 20 mg/kg of levodopa by oral administration. Other 6 normal cats were as normal controls. Pattern VEP (P-VEP) was recorded to check the visual acuity of the cats. The cell number density of NGF expression in visual cortex area 17 was detected and calculated by immunochemistry and expressed as positive number/field. Results The amplitude of P_(100) of P-VEP was significantly declined in monocular deprived eyes compared with fellow eyes and normal eyes in 2 weeks after monocular deprivation (P ＜0. 01) . However, after administration of levodopa, the amplitude of P_(100) recovered to normal 2 weeks later, presenting a insignificant difference between levodopa treating group and normal group (P＞ 0. 05). The latency of P_(100) was followed the same pattern between two groups. The NGF positive cells were decreased in monocular deprived group compared with normal group and levodopa group (80. 23 ± 9. 54 vs 111. 83 ± 7. 49, 80. 23 ± 9. 54 vs 118. 06 ± 12. 37, P ＜ 0. 01), but no significant difference in NGF positive cells was found between normal group and levodopa group (111.83 ±7. 49 vs 118. 06 ± 12. 37, P = 0. 94). Conclusion Levodopa is supposed to accelerate the recovery of visual function in amblyopic cat by enhancing the NGF expression in visual cortex area 17 during the critical period of visual development.

OBJECTIVE To investigate DNA hypermethylation of human 8-hydroxyguanine glycosy-lase(hOGG1 )gene and and the level of oxidative stress and DNA oxidative damage relations with arse-nic poisoning.METHODS In ende mic coal-pollution-borne arsenism area,Xinren county,Guizhou Province,according to the diagnostic criteria of ende mic arsenism(WS /T21 1 -2001 ),207 people with ende mic arsenism were selected and divided into four groups(The arsenic exposure group:46 cases, mild arsenism group:46 cases,moderate arsenism group:60 cases and severe arsenism group:55 cases).64 residents were selected as controls in a village about 12 km away fro m the ende mic arsenism area.With the informed consent principle,peripheral blood of all respondents was collected in order to analyze DNA methylation.Methylation-specific poly merase chain reaction were respectively performed to analyze hOGG1 Hypermethylation in arsenism respondents.Che mical methods were performed on the activity of super oxide dis mutase (SOD)and glutathione peroxidase (GSH-Px),while the contents of malondialdehyde (MDA)in the blood of patients were measured,and the contents of 8-hydroxy-2′-deox-yguanine(8-OHdG)urine of patients were measured and analysed.On the basis of methylation status are divided into hOGG1 gene methylation group (34 cases)and hOGG1 gene no methylation group (237cases).Analysis was performd on hOGG1 gene DNA methylation and the relationship between oxi-dative stress and arsenic poisoning.RESULTS The positive rates of hypermethylation of hOGG1 were associated with the degree of arsenic poisonin (co mpared with control group,χ2 =23.916,P <0.05, Co mpared with the Ende mic area normal group,χ2 =12.039,P <0.05 ).Co mparing with negative group,SOD〔(85 ±25)kU·L -1 〕,GSH-Px〔(70 ±26)kU·L -1 〕activity and 8-OHdG 〔(22.5 ±6.8)μg·L -1 〕contents were lower〔(1 18 ±41 )kU·L -1 ,(171 ±56)kU·L -1 ,(28.4 ±6.5)μg·L -1 ,P <0.05)〕in positive group.There was no significant difference between the MDA content(P>0.05).CONCLUSION Coal arsenic exposure can cause hOGG1 gene high methylation and oxidation and anti-oxidation system imbalance,causing DNA oxidative damage,it is one of the reasons to pro mote the develop ment of arsenic poisoning occurred.

Objective To investigate the actuality of self-compassion and perceived social support among probationer nursing students, and to analyze the relationship between them. Methods 552 probationer nursing students from three tertiary hospitals in Suzhou were investigated by means of the Self-Compassion Scale (SCS) and Perceived Social Support Scale (PSSS). Results The probationer nursing students′ self-compassion and perceived social support was (3.20 ± 0.61) points and (5.81 ± 1.13) points, respectively. Scores of the total scale and the factors of self-compassion and perceived social support were positively correlated (r=0.485, P<0.01). Hierarchical regression analysis showed that perceived social support (family support and friend support) could be used to forecast the self-compassion of probationer nursing students and independently explain the variation of their self-compassion of 21.5%(△R2=0.215, P<0.01). Conclusions Self-compassion among probationer nursing students is in medium level, and perceived social support an important factor affecting their self-compassion.

目的调查特勤疗养人员社会适应的特点。方法以症状自评量表（SCL-90）中与社会适应有关的3个因子（人际关系、敌对、偏执）对558名特勤疗养人员进行测评。结果特勤疗养人员3个因子有阳性症状的百分比为人际关系7.2%、敌对9.3%、偏执6.5%；特勤疗养员的得分明显低于军人常模和地方常模（P<0.01）；海勤疗养员在人际关系、敌对因子上明显高于空勤疗养员（P<0.01），偏执因子无显著性差异（P>0.05）。结论特勤疗养员的社会适应状况良好。

Objective To investigate the relationship between genetic polymorphisms in nucleotide excision repair gene excision repair cross complementing group 6(ERCC6),xeroderma pigmentosum group A(XPA) and coal-burning-borne-arsenism in Guizhou Province.Method ERCC6 A3368G,ERCC6 C-6530G and XPA A23G gene polymorphisms were analyzed by polymerase chain reaction restriction fragment length polymorphism technique(PCR-RFLP) of 205 cases which were chosen as patients with arsenism and 187 residents as control group.Results The distributions of ERCC6 A3368G,ERCC6 C-6530G and XPA A23G in the case group were not statistically significant compared with those of the control group(x2 =3.209,2.963,3.335,all P ＞ 0.05); individuals carrying G allelomorphic gene(AG + GG) had a lower risk than individuals carring A allelomorphic gene(ORadj =0.282,95％CI:0.126-0.628,P =0.002); relationship was not found between single genetic polymorphisms of ERCC6 C-6530G,XPA A23G and coal-burning-borne-arsenism; the risk of arsenism was decreased for individuals carrying the following five genotypes combination:ERCC6 A3368G(AG + GG) genotype and ERCC6 C-6530G CC genotype(ORadj =0.287,95％CI:0.087-0.946,P=0.040); ERCC6 A3368G(AG + GG) genotype and ERCC6 C-6530G(CG + GG) genotype (ORadj =0.226,95％CI:0.077-0.661,P =0.007); ERCC6 A3368G(AG + GG) genotype and XPA A23G AA genotype (ORadj =0.150,95％CI:0.038-0.596,P =0.007); ERCC6 A3368G (AG + GG) genotype and XPA A23G(AG + GG) genotype(ORadj =0.325,95％CI:0.118-0.897,P =0.030) ; ERCC6 C6530G (CG + GG) genotype and XPA A23G AA genotype (ORadj =0.397,95％CI:0.162-0.975,P=0.036).Conclusions Individuals carring ERCC6 A3368G (AG + GG) genotype have a low risk of arsenism.There are five genotypes combination of three gene polymorphisms in two genes,ERCC6 and XPA,which may reduce the risk of coal-burning-borne-arsenism.