Objective To observe the therapeutic effects of Chinese traditional compound medicine on subcilincal hepatic encephalopathy(SHE).Methods 52 patients with liver cirrhosis complicated by SHE were randomly divided into treatment group and control group.The patients of control group received conventional hepatoprotection treatment,and the patients of treatment group were given conventional treatment and Chinese traditional compound medicines.Number connection test(NCT),electroencephalogram(EEG),liver function,blood ammonia were investigated after 2 weeks of treatment.Results The number connection test (NCT),electroencephalogram (EEG),liver function,blood ammonia were significantly improved in the treatment group than that in the control group(P

AIM　To study the inhibitory effects of indomethacin and meloxicam on NF-κB from lipopolysaccharide (LPS) stimulated peritoneal macrophages of mice. METHODS　NF-κB was measured with the method of electrophoretic mobility shift assay (EMSA). RESULTS　After induction by LPS at the concentrations of 1 and 3 μg.mL-1, the NF-κB content of the mouse peritoneal macrophages increased markedly. Indomethacin and meloxicam, at the concentrations of 10-7-10-5 mol.L-1, decreased the activation of NF-κB at the concentrations of 1 and 3 μg.mL-1 in activated mouse peritoneal macrophages induced with LPS at the concentrations of 1 and 3 μg.mL-1. CONCLUSION　The inhibitory effects of indomethacin and meloxicam on NF-κB activation may be one of their mechanisms of antiinflammatory actions.

Objective To study the preventive and therapeutic effects and the mechanism of Chinese traditional compound medicine to subcilincal hepatic encephalopathy(SHE)induced by endotoxin in liver cirrhotic rats.Methods The liver cirrhosis model of rats were made in subcutaneous injection of 40% carbon tetrachloride,the SHE model was made by infused with endotoxin into the tail vein.Treatment group was given low dose or moderate dose or high dose of Chinese traditional compound medicine,Control group was treated with lactulose.The morbidity of SHE,hepatic function,blood ammonium(BA),endotoxin,liver tissue pathology were observed.Results Above indexes were improved by every group of Chinese traditional compound medicine.The curative effect of moderate and high group of Chinese traditional compound medicine to the hepatic function,BA,endotoxin,liver tissue pathology were better than that of lactulose.Conclusions The effects of the Chinese traditional compound medicines(compose of Polygonum cuspidatum,raw hawthornfruit,seed of Zizyphus jujuba Mill,Mongolian Dandelion Herb and Rhizoma Acoori Graminei)in SHE prevention and treatment is significant.Its mechanism might be as follows:① recovering liver function,decreasing inflammatory changes of liver tissue;② preventing the absorption of BA,lowering the content of BA;③ reducing the sensitivity of the body to endotoxin.

Objective To explore the mechanism of intrauterine growth restriction (IUGR) via observing the change of mitochondria in IUGR placenta. Methods Placenta samples were collected from 30 singleton pregnancies at the time of elec-tive caesarean section. Fifteen of them were appropriate for gestational age and 15 were IUGR. Mitochondrial morphology was observed by transmission electron microscopy, DNA copies were analyzed by real-time quantitative PCR and membrane potential was assayed by lfow cytometry. Results Signiifcant morphological changes of placental mitochondria were observed under transmission electron microscopy in IUGR, mitochondrial DNA copies in IUGR placenta were signiifcantly increased (P<0.01) and membrane potential decreased dramatically (P<0.01). Conclusions It is suggest that impaired mitochondrial function in IUGR may involve in IUGR pathogenesis.

Objective To evaluate the effect of early rehabilitation and acupuncture on acute stroke. Methods125 cases stroke patients were divided into 4 groups: the early rehabilitation and acupuncture group, 34 cases(Group A); the early rehabilitation group, 39 cases(Group B); the early acupuncture group, 21 cases(Group C); and the control group, 31 cases. Bobath therapy and acupuncture were used. The CNS Damage Scale, Fugl Meyer Assessment(FMA), Modified Barthel Index(MBI), Clinical Therapeutic Effectiveness and Rehabilitation Efficiency were observed in all patients at the beginning, middle and end of the course. Results Rehabilitation Efficiency was the highest in Group A among all groups, and higher in Group B than in Group C and the control group, and higher in Group C than in the control group. The Clinical Therapeutic Effectiveness was better in Group A,B and C than in the control group, and better in Group C than in the control group. Conclusion It is a main and effective therapy to improve the patient\'s condition that early rehabilitation is combined with early acupuncture on acute stroke patients.

Objective:To explore the effects of eight-week group positive psychotherapy intervention on de-pression associated self-efficacy and subjective well-being in female nursing students.Methods:Totally 74 female nursing students with mild to moderate depression [the score of Beck Depression Inventory (BDI-Ⅱ)was 14 to 28]were selected from three nursing colleges of Changsha.They were randomly divided into two groups,40 in the control group and 34 in the intervention group.Samples in the intervention group were given the eight-week group positive psychotherapy,while the control group was given nothing (the control group could receive the intervention when the intervention was proved to be effective or the control group needed treatments).The General Self-efficacy Scale(GSES)and Index of Well-being(IWB)were used to get the outcome of female nursing students'self-effica-cy,subjective well-being at baseline,the time after the intervention,3 month follow-up,6 month follow-up.Results:The interactive effect between group and time of self-efficacy,subjective well-being were statistically significant (Ps<0.05).Separate analyses showed that at baseline,there was no significant difference between two groups in all variables (Ps >0.05).At the end of the intervention,3 month follow-up and 6 month follow-up,the GSES score and IWB score in the intervention group were higher than those in the control group (Ps <0.05).Conclusion:Eight-week group positive psychotherapy could improve self-efficacy and subjective well-being of female nursing students who have mild to moderate depressive symptom.This intervention also has a long-term effect.

BACKGROUND:YY1 is mainly expressed in the undifferentiated epidermic cells in mouse basal lamina, and the expression level is gradual y down-regulated as the differentiation towards suprabasal lamina. The differential expression indicates that, YY1 is one of the regulators in the process of epidermic cells differentiation.
OBJECTIVE:To observe the effects of YY1 over-expression on the differentiation of HaCaT cells infected with lentivirus.
METHODS:Lentivirus-YY1 was transferred into the HaCaT cells by using Lipofectamine 2000. After selection of the puromycin, monoclonal celllines were established, and the control group were lentivirus-infected HaCaT cells and uninfected HaCaT cells. The expression of YY1 was detected by using western blot analysis. cells in Lentivirus-YY1-HaCaT group and HaCaT-YY1 group were further divided into two subgroups according to the calcium concentration in culture medium, cells were either cultured in low-calcium medium (0.12 mmol/L) for 48 hours, or cultured in low-calcium medium (0.12 mmol/L) for 24 hours and in high-calcium medium (0.35 mmol/L) for additional 24 hours. Keratin K1, K10, K14, and involucrin, filaggrin and loricrin after over-expression of YY1 were detected with western blot analysis.
RESULTS AND CONCLUSION:The HaCaT cells were successful y infected with lentivirus-YY1, and we obtained over-expression of YY1 protein in monoclonal celllines under high-calcium concentrations, the over-expressed YY1 could decrease the expression of K1, involucrin and loricrin, thereby preventing the process of epidermal keratinocytes and maintaining the cells in an undifferentiated state. Lentivirus can efficiently infect human immortalized epidermal cellHaCaT, and YY1 may the important factor of inhibiting the differentiation of basal epidermal cells and maintaining the undifferentiated proliferation status.

Objective To explore the expression of 11-β hydroxysteroid dehydrogenase 2 (11-β HSD2) gene in placenta of pregnancy induced hypertension (PIH) complicated by intrauterine growth retardation (IUGR) and the relationship between different expression of 11-β HSD2 in placenta and newborn's birth weight or placental weight. Methods Thirteen cases of term pregnancy mothers with PIH complicated by IUGR were served as PIH complicated by IUGR group, 22 cases of term pregnancy mothers complicated by PHI with appropriate for gestational age (AGA) infant as PIH with AGA group and 36 cases of normal controls as control group. The mRNA expression level of 11-β HSD2 gene in placenta was evaluated by RT-PCR. The level of cord serum cortisol was detected by the method of chemiluminescence. Results The 11-β HSD2 gene mRNA was expressed in placenta. The mRNA expression level of 11-β HSD2 gene in PIH complicated by IUGR group's placenta was significantly lower (0.26±0.09) than that in PIH with AGA group (0.64±0.19) and control group (0.66±0.20). The level of cord serum cortisol in PIH complicated by IUGR group was significantly higher [(71.60±20.20)μg/L] than that in PIH with AGA group [(51.00±13.80)μg/L] and control group [(49.10±14.40)μg/L]. The newborn's birth weight and placental weight in PIH complicated by IUGR group was significantly lower than those in PIH with AGA group and control group. The mRNA expression level of 11-β HSD2 gene in placenta was positively correlated with the birth weight of their newborns and placental weight. Conclusion The lower mRNA expression level of 11-β HSD2 gene in placenta may contribute to the higher cortisol level in fetal of PIH complicated by IUGR and has a negative role on the fetal development.

Objective To investigate the value of cytokinesis-block micronuclei(CBMN)assay in estimation of the biological doses of the victims of radiation accident.Methods Samples of peripheral blood were collected from the 5 victims(Subjects 1-5)at 16 h after the radiation accident of Taiyuan,Shanxi Province.And the peripheral blood samples and bone marrow sample were collected from the victim No.1 at 23 and 24 h after the radiation.Eight days after the accident Subject 1 underwent allogeneic peripheral blood hematopoietic stem cell transplantation.At difierent time points in the period of 1 year after the accident.peripheral blood samples were collected from these 5 victims.CBMN assay was conducted on the peripheral blood lymphocytes on the samples,and the biological doses were estimated based on the micronuclei(MN)frequencies.The nuclear division index(NDI)obtained from in vitro irradiation experiment using high dose of 60Coγ-rays was used to estimate the exposed doses for Subject 1. Dynamic arialysis of the MN frequency for the 5 victims was performed in the period of 1 year after the accident.Results The MN frequency of Subject 1 surpassed the value corresponding to the upper limit of the MN dose.effective curve.The dose range estimated bv the combination of the CBMN and NDI (CBMN+NDl)assay was 10-20 Gy for Subject 1.The doses estimated by MN frequency for Subjects 2,3,4,and 5 were 3.6,2.9,2.3,and 2.9 Gy,respectively.The estimated doses were in accordance with those estimated by physicat method.chromosome aberration analysis.and clinical symptoms.Prominent decrease of the MN frequency was observed at 26 d after the accident(18 d after the transplantation)for Subject 1(u=3.295,P<0.05).Gradual decrease of MN frequency was observed after the accident for Subjects 2,3,4,and 5.The MN frequencies 1 month after the accident of Subjects 3,4,and 5 were all significantly lower than those 16 h later(u=6.874,4.526,and 7.811,P<0.05).Conclusions Quick and accurate.CBMN assay reinforces and verifies the result of chromosome aberration analysis.The new index CBMN+NDI assay is of reference valne for estimating higher dose of irradiation.