Effect of ion-exchange chromatography on removal of fibronectin in von Willebrand factor / 中国输血杂志

【Objective】 To study the removal effect of fibronectin(Fn) from von willebrand factor(vWF) by ion-exchange chromatography through processing human coagulation factor Ⅷ chromatographic washing products, in order to select a method that can effectively reduce Fn without compromising the activity yield. 【Methods】 In a multi-batch process development experiment, Fractogel® EMD TMAE(M) strong anion filler produced by Merck(Germany) was used to conduct chromatography to investigate vWF ristomycins titer (vWF: RCof), vWF recovery, protein content and Fn content. 【Results】 During the development of vWF pilot purification process, the content of Fn in the samples can be effectively reduced by ion-exchange chromatography, with removal rate more than 87%, titer recovery of vWF more than 80%, and no significant change in other quality indexes. 【Conclusion】 The use of ion-exchange chromatography to purify vWF can effectively reduce the content of Fn, which has positive significance for developing new product process and improving the product quality of blood products manufacturers.

Influence of abnormal blood pressure circadian rhythms and the morning surge on aortic stiffness in the elderly patients with isolated systolic hypertension / 中华老年医学杂志

Objective:To investigate the influence of abnormal blood pressure circadian rhythms and the morning surge on aortic stiffness in elderly patients with isolated systolic hypertension(ISH).Methods:A total of 300 untreated elderly(≥60 years)patients with ISH were enrolled.24-hour ambulatory blood pressure was measured by using a non-invasive portable ambulatory sphygmomanometer with an inflatable cuff.Brachial-ankle pulse wave velocity(baPWV)and the ankle-brachial pressure index(ABI)were measured by using an automated device.Patients were divided into the dipper(n=95), no-dipper(n=177)and extreme dipper(n=28)groups according to the rate of nocturnal blood pressure reduction.They were also divided into the morning surge(n=88)and no morning surge(n=212)groups according to the morning blood pressure surge(MBPS). Differences between the groups were compared.Correlations between the parameters were calculated by partial correlation analyses.The effects on baPWV and ABI were calculated by multiple linear regression analyses.Results:baPWV was higher in the extreme dipper group than in the dipper and no dipper groups[(1 402±234)cm/s vs.(1 467±114)cm/s vs.(1 538±140)cm/s, P<0.01], while ABI values were lower in the extreme dipper group than in the dipper group(0.98±0.10 vs.1.05±0.12, P<0.01)and the no dipper group(0.98±0.10 vs.1.03±0.12, P<0.05). Moreover, baPWV[(1 508±170)cm/s vs.(1 430±163)cm/s, P<0.01]was higher while ABI values(0.98±0.13 vs.1.06±0.11, P<0.01)were lower in the morning surge group than in the no morning surge group.baPWV was positively correlated with daytime Systolic blood pressure(dSBP)( r=0.169, P<0.01), 24 hSBPCV( r=0.143, P<0.05), and MBPS( r=0.157, P<0.01), while ABI was negatively correlated with dSBP( r=-0.146, P=0.011)and MBPS( r=-0.321, P<0.01). Age( P<0.01), dSBP( P<0.05)and 24 h systolic blood pressure variation coefficient( P<0.05)were independent factors for baPWV, while dSBP and MBPS were independent factors for ABI(all P<0.01). Conclusions:Abnormal blood pressure circadian rhythms and the morning surge are associated with increased aortic stiffness in elderly patients with ISH.

Innovation ability-driven optimization of the experimental teaching of human anatomy and animal physiology / 生物工程学报

Innovation and entrepreneurship training through higher education sector is an important way to foster innovative talents and enhance their social adaptation abilities. We reformed and optimized the experimental teaching of human anatomy and animal physiology with the aim to promote the integration of students' theory learning with practice, to promote students' ability to apply anatomical and physiological knowledge to medicine, pharmacy, and life practice. Last but not least, students' innovative consciousness of applying scientific research to serve the society could also be enhanced. These practices would enhance the practical ability of the students through integrating the innovation education and professional education.

Study on preparation and formation mechanism of danazol-sodium caseinate composite nanoparticles / 中国药房

OBJECTIVE To prepar e and characterize danazol （DAZ）-sodium caseinate （SC）composite nanoparticles ，and to study the mechanism of preparing nanoparticles in “bottom-up”technology. METHODS SC was used as a stabilizer for regulating nanoparticles，so that DAZ-SC composite nanoparticles were prepared by anti-solvent precipitation method. The particle size ， Zeta-potential，micro-morphology，stability，encapsulation efficiency ，drug loading and in vitro dissolution rate were characterized. Fluorescence spectra ，IR spectra ，FBRM and other methods were used to analyze the interaction mechanism between DAZ and SC. RESULTS The particle size of DAZ-SC composite nanoparticles was （223.7±12.5）nm，and the polydispersity index was 0.274± 0.012. Zeta-potential was －（17.81±1.63）mV（n＝3）. The stability of nano-suspension was good ，the solid properties of DAZ were greatly improved ，and the dissolution rate was significantly increased. SC was statically quenched under the action of DAZ and the secondary structures of SC were changed. The crystallization process of DAZ was controlled under the action of SC ，and the interaction between DAZ and SC was mainly hydrogen bond and van der Waals force. CONCLUSIONS In this study ，DAZ-SC composite nanoparticles are successfully prepared. In the “bottom-up”technology，the interaction between SC and DAZ caused by hydrogen bond and van der Waals force inhibits the growth and agglomeration of drug crystals .

Strengthening and application of science and education integration in experimental course of human anatomy and animal physiology / 生物工程学报

Institutions of higher learning undertake the important responsibility of personnel training. Teaching and scientific research are two indispensable functions of colleges and universities, and the relationship between them is unbalanced and low integration in the current education and teaching. According to the existing problems in the experimental course of human anatomy and animal physiology, we explored how to apply the ideological and political education of scientific research to improve students' cognitive ability, develop experimental projects combined with scientific research practice, and strengthen the combination of classroom teaching and scientific research practice, aiming to establish the basic concept of the integration of science and education. These are favorable for the realization of the training goal of high-quality innovative talents.

Clinical characteristics of 111 patients with chronic active Epstein-Barr virus infection / 中华传染病杂志

Objective:To analyze the clinical features of chronic active Epstein-Barr virus infection (CAEBV) in order to reduce the rates of underdiagnosis and misdiagnosis of this disease.Methods:The CAEBV related literatures of PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, WanFang Database and Chongqing VIP since the first literature published (May 1987) until August 29, 2020 were searched. The clinical characteristics, laboratory examinations, outcome and causes of death of CAEBV patients were retrospectively analyzed. Statistical analysis was performed by Mann-Whitney U test, chi-square test or Fisher′s exact probability test. Results:A total of 111 patients aged 22.0 (10.0, 39.0) years were included from 46 articles. There were 64 cases (57.7%) in the age ≥18 years group and 47 cases (42.3%) in the age <18 years group. Fever, splenomegaly, hepatomegaly, and lymph node enlargement were common clinical manifestations, with incidences of 95.5%(106/111), 84.7%(94/111), 57.7%(64/111) and 56.8%(63/111), respectively. The incidences of rash and hepatomegaly in the age ≥18 years group were 3.1%(2/64) and 45.3%(29/64), respectively, which were both lower than those in patients aged <18 years group (27.7%(13/47) and 74.5%(35/47), respectively), while the incidence of abnormal liver biochemical indexes was higher (45.3%(29/64) vs 23.4%(11/47)). The differences were all statistically significant ( χ2=13.957, 9.436 and 5.643, respectively, all P<0.05). Of the 70 patients with follow-up outcomes, 38(54.3%) died and 32(45.7%) survived. The causes of death included gastrointestinal bleeding, severe infection, respiratory failure, liver failure, etc. The incidences of splenomegaly in the death and survival groups were 92.1%(35/38) and 68.8%(22/32), respectively. The difference was statistically significant ( χ2=6.266, P<0.05). Of 21 death and 17 survival cases in the age <18 years group, 15(71.4%) and two cases were combined hemophagocytic lymphohistiocytosis (HLH), respectively, with statistical significance ( χ2=13.527, P<0.01). Of the 90 patients whose HLH-related information was available, 38(42.2%) combined HLH and 52(57.8%) without HLH, with 36.8%(14/38) and 65.4% (34/52) of males, respectively. The difference of gender distribution was statistically significant ( χ2=7.187, P=0.007). The treatment regimens of the 111 CAEBV patients during the course of disease were various, but the detailed information was lacking. Conclusions:The clinical manifestations of CAEBV are diverse. CAEBV can be complicated with fatal complications, lacks of effective treatment, and shows poor prognosis. It is necessary to actively carry out related research to improve the understanding of the disease, and explore effective treatment and reduce mortality.

Expression and significance of IL-37 and proinflammatory cytokines in peripheral blood of patients with moderate to severe psoriasis vulgaris before and after treatment / 实用医学杂志

Objective To explore the expression alteration and significance of inteleukin (IL)-37 in pso-riasis valguris (PV) patients. Methods Patients with PV had been treated with oral acitretin for 8 weeks. PASI score, ELISA and qRT-PCR were used to exam the data of 38 patients (PV group) and 32 controls (control group). Results IL-37 in PV group was significantly higher than that in control group (P 0.05) but decreased obviously after 8 weeks(P < 0.001). Signif-icant correlations existed among PASI scores, IL-37, IFN-γ and IL-17, as well as among IL-37 and IFN-γ, IL-17 (P < 0.05). Conclusions The increase of IL-37 is relevant to PV development and is associated with pa-tients’ conditions, IFN-γ and IL-17 but the alteration of IL-37 is not related with IL-4.

Expression andsignificance of miR-155 in psoriasis vulgaris / 实用医学杂志

Objective Toexplore the expression and significance of microRNA-155 (miR-155) in psoriasis vulgaris. Methods Areal-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) method with TaqMan probe technology was performed to detect miR-155 expression in skin lesion area and nonskinlesionalarea of 35 patients with psoriasis vulgaris , compared with that of 30 normal controls. The correlations among miR-155 expression, psoriasis area and severity index (PASI) score and Interleukin-17A(IL-17A)expression were studied. Results The expressions of miR-155 and IL-17A in lesional and non-lesionalgroups were higher than that of control group (all P < 0.01). Also expressions in lesional skin were higher than non-lesional skin (both P < 0.01). In skin lesion group, significant positive correlations existed betweenmiR-155 or IL-17A expression and PASI score as well as miR-155 and IL-17A expression (all P < 0.05). Conclusions Up-expression of miR-155 was relevant to psoriasis development , which is related withthe hyperfunctionof Th17 cells in psoriasis.

Validity and reliability of the Chinese Attention to Positive and Negative Inventory in college students / 中国心理卫生杂志

Objective:To translate the Attention to Positive and Negative Inventory(APNI)and analyze the validity and reliability in Chinese undergraduates sample,to offer a convenient and reliable tool of measuring the cognitive bias for national researchers. Methods:The English-version APNI went through translation into Chinese, retroversion into English,translation into Chinese again,and revision several stages. Two parts of samples (1450 Chinese college students)were surveyed. Sample one (n=1000)was used for item analysis,exploratory factor a-nalysis (EFA),concurrent validity and reliability analysis,while sample 2 (n=450)was used for confirmatory fac-tor analysis (CFA). Totally 68 subjects of sample 1 were randomly chosen and resurveyed with an interval of one week. Beck depression inventory (BDI-II)and patient health questionnaire (PHQ-9)was used for concurrent validi-ty. Results:Item analysis indicated that the 22 items of Chinese APNI had good discriminability. EFA focused onattention to positive information(API)and attention to negative information(ANI)two factors. CFA showed good model fit (χ2 =1376,RMESA=0. 09,CFI=0. 94). Concurrent validity result showed that the total scores of BDI-II and PHQ-9 was negatively correlated with total scores of API (r=-0. 24,-0. 29,Ps<0. 01 ),and posi-tively correlated with total scores of ANI (r=0. 36,0. 31,Ps<0. 01). The Cronbach'αcoefficients of API and ANI sub-scale were 0. 86 and 0. 82,while the retest reliability coefficients were 0. 79 and 0. 62. Conclusion:It suggests that the Chinese APNI has good validity and reliability in a sample of college students,which could be used to eval-uate the cognitive bias of Chinese college students.

Expressions and clinical significance of p33ING1b and p53 in psoriasis and basal cell carcinoma / 实用医学杂志

Objective To discuss the expressions and clinical significance of p53 and p33ING1b in human psoriasis and basal cell carcinoma (BCC). Methods Immunohistochemistry EnVision technique was used to detect the expressions of p53 and p33ING1b in samples of 36 psoriasis vulgaris, 28 BCC and 14 normal skins. Results The expression of p53 increased while p33ING1b had a degressive expression in the control group, the psoriasis group and the BCC group. It was found significant statistical difference between the two groups (all P < 0.05). Prominent positive correlation between p53 and p33ING1b were found in both psoriasis group and BCC group (all P<0.05). Conclusions p53 coacts with p33ING1b at local lesions of abnormal proliferative diseases . It′s one of the most prominent mechanisms contributing to deviant cell proliferation.

Effect of different methods of corneal curvature measurement on postoperative corneal astigmatism correction after implantation of TORIC artificial lens / 重庆医学

Objective To observe how different measuring methods of corneal curvature produce affect postoperative corneal a-stigmatism correction after implantation of TORIC artificial lens .Methods To measure 4 teams of age-related cataract patients complicated with regular astigmatism of more than 1 .0D by the procedure of manual keratometer ,IOL Master ,auto keratometer and Pentacam respectively .The Toric artificial lenses were precisely placed in appropriate position in phacoemulsification surgery .We observed the uncorrected visual acuity (UCVA) ,best corrected visual acuity (BCVA) in 1D ,1W ,1M ,3M before and after the sur-gery ,corneal astigmatism after the surgery ,as well as anticipated and consequent residual astigmatism .Results The variance analy-sis of absolute-value deviation between anticipated residual astigmatism (ARA) and best corrected visual acuity (BCVA) is P<0 .0001 ,the above difference was statistically significant ;we consider that the astigmatic deviation measured by the four methods is different ;besides the deviation of paired comparison results between Master-team (0 .322) and auto-team (0 .242) ,auto-team and manual-team (0 .218) ,manual-team and Pentacam-team(0 .107) is more than 0 .05 and not statistically significant ,all the remaining paired comparison results are statistically significant ,(P<0 .05) ,the Pentacam-team (0 .082) is the minimum deviation ,while the IOL Master-team (0 .422) is the maximum one .Conclusion The measuring result to estimate the exact value of Acrysof Toric IOL by Pentacam is more accurate than by other methods .

Study on the relationship between self-supporting personality and career maturity of medical students / 中华行为医学与脑科学杂志

ObjectiveTo investigate the developmental status and their relationship of self-supporting personality and career maturity of medical students.Methods450 medical students were surveyed by self-supporting personality scale and career maturity questionnaire.Descriptive statistical analysis,t-test,correlation analysis and regression analysis were used to do data analysis.Results ( 1 ) Most dimensions of self-supporting personality such as personal initiative,interpersonal initiative,interpersonal flexibility and personal responsibility were positively related to the career maturity ( r=0.53,P＜0.01 ; r=0.49,P＜0.01; r=0.46,P＜0.01 ; r=0.45,P＜ 0.01 ).(2)Career maturity of medical students can be positively predicted by several dimensions of self-supporting personality ( R2 =0.49,F=60.10,P＜ 0.01 ).ConclusionThe career maturity of medical students is closely associated with their self-supporting personality.

Quantification of CD123+ BDCA-2+ plasmacytoid dendritic cells in skin lesions and peripheral blood of patients with psoriasis vulgaris / 中华皮肤科杂志

[Objective] To quantify CD123+ BDCA-2+ plasmacywid dendritic cells (PDCs) in skin lesions and peripheral blood of patients with psoriasis vulgaris,and to investigate their significance.[Methods] Skin tissue samples were resected from the lesions of 22 patients with psoriasis vulgaris and normal skin of 15healthy controls,and peripheral blood samples were also obtained from these subjects.Immunohistochemical technique (SP) was used to quantify PDCs in skin tissue samples,and flow cytometry to determine the proportion of PDCs in peripheral blood samples.[Results] Immunohistochemical study showed that the density of PDCs in the psoriatic lesions was significantly higher than that in the healthy controls (( 10.1 ± 2.1 )/mm2 vs.(0.4 + 0.6)/mm2,t =17.34,P ＜ 0.01 ).On the contrast,the proportion of PDCs in peripheral blood was 0.17％ ±0.07％ in the patients with psoriasis vulgaris,significantly lower than that in the healthy controls (0.33％ ±0.20％,t =4.48,P ＜ 0.01 ).[Conclusion]s The proportion of PDCs is reduced in the peripheral blood of patients with psoriasis vulgaris,which may be related to the initiation and progression of psoriasis vulgaris.

Effects of a short hairpin RNA targeting STAT3 gene on the biological behavior of a human malignant melanoma cell line A375 / 中华皮肤科杂志

Objective To study the effects of short hairpin RNA (shRNA) targeting STAT3 gene on the proliferation and apoptosis of A375 human malignant melanoma cells.Methods Sense and antisense oligonucleotides with small hairpin structures targeting STAT3 gene were designed,synthesized and cloned into the plasmid vector psiRNA-hHlneo after annealing.Cultured A375 cells were divided into 3 groups: control group receiving no treatment,psiRNA-H1 group transfected with empty plasmid,and psiRNA-H1/STAT3 group transfected with the recombinant plasmid containing the shRNA.After additional culture for different durations,reverse transcription PCR and Western blot were performed to detect the expression of STAT3 mRNA and protein,methyl thiazolyl tetrazolium (MTT) assay to evaluate cell proliferation,flow cytometry to assess cell cycle and apoptosis.Results The expression level of STAT3 mRNA and protein in A375 cells in psiRNA-H1/STAT3 group (0.2136 ± 0.0626,0.8214 ± 0.043,respectively) were significantly lower than that in the control group (0.7826 ± 0.0701,3.1693 ± 0.0846,respectively,both P ＜ 0.01) and psiRNA-H1 group (0.8518 ± 0.0783,3.218 ± 0.078,respectively,both P ＜ 0.01 ).The inhibition rates of cell proliferation at 24,48 and 72 hours were 21.35％ ± 2.12％,32.52％ ± 2.64％ and 40.4％ ± 3.08％ respectively in psiRNA-H1/STAT3 group,statistically different from those in the control group (1.39％ ± 0.53％,3.05％ ± 1.16％,4.41％± 1.42％,respectively,all P ＜ 0.01) and psiRNA-H1 group (2.63％ ± 1.38％,5.84％ ± 2.47％,10.32％ ±2.48％,respectively,all P ＜ 0.01).Flow cytometry showed a statistical increase in cell apoptosis rate in psiRNA-H1/STAT3 group compared with the control and psiRNA-H1 group (81.06％ ± 2.10％ vs.26.28％ ±0.47％ and 27.31％ ± 1.05％,both P ＜ 0.01 ).The psiRNA-H1/STAT3 group exhibited a higher percentage of cells at G0/G1 phase (68.43％ ± 4.00％) but a lower percentage of cells at S phase (17.4％ ± 2.05％) compared with the control group (60.07％ ± 2.47％,P ＜ 0.05; 28.40％ ± 2.09％,P ＜ 0.01 ) and psiRNA-H1 group (60.29％ ± 2.26％,27.34％ ± 3.63％,both P ＜ 0.05 ).Conclusions The small interference RNA targeting STAT3 gene can specifically down-regulate the expressions of STAT3 mRNA and proteins in,inhibit cellular proliferation of,and induce apoptosis in,A375 cells.

Expression of IRF-4 and IBP in skin lesions of patients with psoriasis vulgaris / 华中科技大学学报（医学）（英德文版）

The expression of the interferon regulatory factor 4 (IRF-4) and the IRF-4-binding protein (IBP) in psoriatic skin lesions was investigated. The expression of IRF-4 and IBP in skin lesions of 20 patients with psoriasis vulgaris were immunohistochemically dectected. Normal skin from 10 healthy people was used as normal control. The study showed that expression of IRF-4 was increased significantly in keratinocytes and inflammatory cells in the lesions of psoriasis vulgaris than that in the normal control. The detection revealed that IBP expression in keratinocytes, lymphocytes, hair follicles, and sebaceous glands in normal skin was significantly lower than that in the lesions of psoriasis vulgaris (P<0.05). Both IRF-4 and IBP might be involved in the pathogenesis of psoriasis vulgaris.

Expression of angiotensin Ⅱ in A375 human malignant melanoma cells and its influence on angiogenesis / 中华皮肤科杂志

Objective To investigate the expression of angiotensin Ⅱ (Ang Ⅱ) in malignant melanoma cells and to explore the influence of Ang Ⅱ on angiogenesis. Methods The expression of Ang Ⅱ in the supernatant of A375 cells and primary human melanocytes was detected by radioimmunoassay.Human umbilical vein endothelial cells (HUVECs) were incubated with Ang Ⅱ of 1 μmol/L for 20 hours in an in vitro tube formation assay to observe the effects of Ang Ⅱ on tube formation.A375 cells were incubated with angiotensin Ⅱ of 1 μmol/L and losartan (an inhibitor of angiotensin Ⅱ type 1 receptor,AT1R) of 1 μmol/L,respectively for 24 hours; subsequently, reverse transcription PCR (RT-PCR) and enzyme-linked immunosorbent assay (ELISA)were carried out to measure the mRNA and protein expressions of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF),respectively.Results The level of Ang Ⅱ was 37.29 ± 0.27 pmol/L in the supernatant of A375 cells,significantly higher than that in the supernatant of normal human melanocytes (21.58 ± 0.32 pmol/L,P ＜ 0.05).Ang Ⅱ apparently promoted the tube formation by HUVECs.Intact tubiform structures were formed by HUVECs in two-dimension matrigel after being treated with Ang Ⅱ of 1 μmol/L,with the area of tubiform structures being 2.5 ± 0.3 times that in the HUVECs treated with phosphate buffered solution (PBS) (P ＜ 0.05).The protein expressions of VEGF and bFGF in the supernatant of A375 cells and their mRNA expressions in A375 cells were significantly increased by Ang Ⅱ,but suppressed by losartan (all P ＜ 0.05).Conclusions There is a local overexpression of Ang Ⅱ in malignant melanoma,which can markedly promote angiogenesis.This may be one of the mechanisms by which the local renin-angiotensin system affects the initiation of malignant melanoma.

Inhibition of melanoma cell proliferation by targeting Wnt/β-catenin pathway through Sox4 RNA interference / 华中科技大学学报（医学）（英德文版）

The effect of siRNA-mediated Sox4 gene silencing on Wnt/β-catenin signaling pathway of human malignant melanoma cell line A375 was investigated. Two types of dsRNA targeting Sox4 were constructed and transfected into A375 cells, and untreated cells and cells transfected with scramble RNA were used as blank control and negative control respectively. The expression levels of mRNA and protein of Sox4, Wnt3a, β-catenin and Wnt/β-catenin signaling target gene Survivin were detected after real-time PCR and Western blot respectively. MTT assay was used to measure cell proliferation after Sox4 knockdown. β-catenin/TCF transcription reporter assay was used for assessing Wnt/β-catenin signaling pathway activity. Our results showed that the two types of Sox4 siRNA were transfected into A375 cells successfully. As compared with untreated cells, Sox4 siRNAs had no significant influence on Wnt3a expression, and Sox4 siRNAs led to the decrease of β-catenin at protein level. Wnt/β-catenin signaling pathway activity was inhibited significantly. As a target of Wnt/β-catenin signaling, Survivin was decreased at both mRNA and protein levels, and cell proliferation was attenuated. Our study suggests that Sox4 may play an important role in Wnt/β-catenin signaling pathway in human malignant melanoma cells by regulating β-catenin protein level, indicating that Sox4 is involved in the progression of malignant melanoma through Wnt/β-catenin signaling pathway.

An investigation on freshmen's psychological trouble and needs for mental health services in in military medical university / 中华医学教育探索杂志

ObjectiveTo investigate psychological trouble of freshmen and their needs for mental health services in military medical university. MethodsAn half-open questionnaire was employed to evaluate 854 freshmen by group-style in military medical university.Results①Freshmen were most concemed about their training stress,soldier role adaptation and emotional trouble,etc.As compared with the male,the rate of emotional trouble and interpersonal conflict of female were increased obviously ( P＜0.05 ).②The most important factor resulting in psychological problems was poor self-control,learning and training stress,military management,and so on.③The most attracting style of mental health services was communication with psychological personnel,psychological manual and movie,psychological lectures,and so on.As compared with the male,the rate of female were increased in individual counseling obviously ( P＜0.01 ).④Freshmen most focused on education of general psychological knowledge,emotion and stress management,soldier role adaptation,and so on.As compared with the male,the rate of female were increased in emotion and stress management,decreased in service role adaptation obviously ( P＜0.05 ).⑤Freshmen were most interested in emotion management,self-awareness,soldier role adaptation,and so on.As compared with the male,the rate of female were increased in emotion management training and profession programming,decreased in soldier role adaptation obviously ( P＜0.05 ).Conclusion Freshmen's psychological problems and needs for mental health services showed obvious gender difference.Military mental health services should be focused on development objectives,specification of ser-vices ,andimprovement of the service availability in military medical university.

The implicit memory of individual depression in percept-driven process under the influence of sad mood induction / 中华行为医学与脑科学杂志

Objective To investigate the effect of sad mood to implicit memory of depressed individuals under the condition of percept-driven process. Methods Using the percept-driven implicit paradigm improved by Paller,26 depression subjects and 25 normal subjects completed study-test task and reported the gender of different emotional faces. Results ①There were main effects of time(F = 4.61, P<0.05)and mood state(F= 21.61, P <0.05) ,significant interaction of time and emotion(F = 4. 13, P<0. 05) ,no significant difference of group on visual analogue scale(VAS) mood ratings. ②Among the accuracy rate of subjects' gender judging to different emotional faces,there were significant main effects on time(F = 4.12, P<0.05)and experiment type (F = 20.55, P < 0.05) , and there was significant interaction of time and experiment type (F=31.72,P<0.05). ③Further simple effects analysis showed that the positive((80 ± 13)%vs(92 ± 10)% , F=65.06, P<0.05) ,negative((58 ± 12)%vs(91 ±10)%,F=10.00,P<0.05),neutral((84±16)%vs(88±9)%, F= 12.49, P < 0. 05) faces when the presentation time was 3600ms in experiment type had significant simple effects; the positive ((76 ± 12)%vs(85±10)%,F=54.72, P<0.05) ,neutral((82 ± 10)% vs(80 ± 10)% , F = 54.57, P<0.05)faces when the presentation time was 300 ms in experiment types had significant simple effects, while the accuracy of neutral faces had significant simple effect between the two groups. Conclusion Sad mood enhance the implicit memory of both depressed and normal subjects to positive and negative faces,and the accuracy rate in implicit processing to neutral faces of depressed group were lower than that of normal group.

Plumbagin enhances TRAIL-mediated apoptosis through up-regulation of death receptor in human melanoma A375 cells / 华中科技大学学报（医学）（英德文版）

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising anti-cancer agent. However, emergence of drug resistance limits its potential use. Plumbagin is a natural quinonoid compound isolated from plant. In this study, induced apoptosis effect of the combined treatment with plumbagin and TRAIL on human melanoma A375 cell line was examined and possible mechanism was investigated. The cells were divided into four groups: control group, plumbagin group (plumbagin, 5 or 10 mumol/L), TRAIL group (TRAIL, 30 ng/mL) and plumbagin+TRAIL group (combined treatment group). The apoptosis, and the expression of DR4 and DR5 were detected by flow cytometry. The activities of caspase-8 and caspase-3 were determined by colorimetric assay. The results showed that the apoptosis rate was 8.3% in TRAIL group, 10.35%-16.94% in plumbagin group and 52.39%-65.39% in combined treatment group, respectively, with the difference being significant between combined treatment group and plumbagin or TRAIL group (P<0.05 for each). Moreover, plumbagin alone could markedly up-regulate DR5 mRNA and protein expression, and slightly increase DR4 mRNA and protein expression. Treatment of human melanoma A375 cells with plumbagin resulted in the activation of Caspase-3, but not Caspase-8. These results suggest that plumbagin might be useful for TRAIL-based treatment for melanoma.