Objective To investigate the relationship between PCNA and nm23 expression in breast cancer tissue and its prognosis. Methods Detected the expression of PCNA and nm23 of 278 cases of breast cancer by immunohistochemical technique S-P and analyzed it combined with the clinicopathology. Results PCNA positive rate was 37.4%(104/278),nm23 positive rate was 59.7%(166/278).PCNA and nm23 genes expression had no obvious correlation with the breast cancer pathological type,patients age and clinical stage (P > 0.05). PCNA expression had the positive correlation with the axillary lymph nodes meta-sitasis but negative to 5-year survival rates(P < 0.01 ),nm23 expression had the negative correlation with the axillary lymph nodes metasitasis but positive to 5-year survival rates(P < 0.01 ). PCNA and nm23 expression had the obvious negative correlation between them(P < 0.01 ). Conclusion Combined detection the expres-sion of PCNA and nm23 in breast cancer tissue will be important reference to forcast and evaluate the prognosis of the breast cancer patients.

The central distribution of visceral primary afferent fibers from greater splanchnic nerve of the cat have been studied. Horseradish peroxidase (HRP) dissolved in distilled water was injected into the coeliac ganglion or greater splanchnic nerve unilaterally. The HRP was taken up by afferent fibers and transported across the spinal ganglia and then anterogradely as far as central terminals in the spinal cord and medulla. The HRP reaction-product within the central processes of the primary sensory neurons was detected ipsilaterally in the Lissauer's tract, dorsal funiculus and spinal gray matter. After entering the spinal cord via the spinal dorsal roots, the great majority of labeled fibers (viz. the central processes of primary sensory neurons) were found to run longitudinally within the zone of Lissauer, and only sparse fibers to ascend in the dorsal funiculus. The medial projection fibers (MPF) and lateral projection fibers (LPF) arose periodically from the labeled fiber bundle in the Lissauer's tract to form a thin shell surrounding both the medial and lateral sides of the dorsal horn. The terminal areas of the more prominent LPF were found at laminae I, V, VII and the region surrounding the central canal, whereas the MPF ended at the medial part of lamina V and lamina X. Some smaller fiber bundles from LPF were seen to enter the cell clusters of the intermediolateral nucleus, where these fibers divided rostrocaudally and ran parallel with the longitudinal dendritic branches of the intermediolateral cells. The few labeled fibers located at the dorsal funiculus were traced to the lower medulla and the distinct terminal area of them was situated in the ventrolateral part of the nucleus gracilis at the level below the obex.

Objective: To know the psychological health status of the college students with guarded experience and to supply reasonable suggestion for psychological health education and consultation.Methods: SCL-90 questionairs were applied to survey the psychological health status of the college students in grade 2 and 3.Results: The psychological characteristic of the students with guarded experience involve.(1) Compared with the national college students norm,the scores of interpersonal sensitivity,depression anxiety and horror are higher(.2) Compared with the college students without guarded experience,the scores of anxiety and horror are higher.(3) Inside the students with guarded experience,the scores of interpersonal sensitivity,depression,anxiety and horror in females are higher than those in males.The above outlined have statistical significance.Conclusion: The guarded experience has positive influence on college students,psychological health,especially on females,We should enforce psychological health education,improve the psychological quality and reduce the psychological disease.

Objective To investigate the consistency of fetal gallbladder volume (FGV) during middle-late pregnancy with three-dimensional ultrasonic virtual organ computer-aided analysis (VOCAL) technique at different rotation angles,and to analyze the correlation between FGV and gestation age.Methods A total of 157 healthy pregnant women underwent prenatal screening were included.The reference range of FGV was measured with three-dimensional ultrasonic VOCAL at 30°,18° and 12° rotation angle,respectively.The correlation between FGV and gestation age was observed,and the consistency of FGV values measured with VOCAL at different rotation step angles was compared.Results The correlations between FGV values measured with VOCAL at 30°,18°,12° rotation step angles and gestation age were all excellent (r=0.92,0.88,0.90;all P＜ 0.001).The consistency of FGV values measured with VOCAL at different rotation step angles was very good (30° and 18°,ICC=0.94;30° and 12°,ICC=0.97;18° and 12°,ICC=0.94).Conclusion Three-dimensional ultrasonic VOCAL can be used to establish the reference range of fetal gallbladder volume in middle-late pregnancy.The consistency of FGV values measured with VOCAL at different rotation step angles was very good,and the correlation between FGV and gestation age was excellent.

Functionalized graphene oxide is prepared based on graphene. It has attracted great interest from all over the world due to its good solubility, biocompatibility, high loading rate, and easy modification. This paper summarizes the surface modification of graphene oxide, and its applications on anti-tumor, antibacteria, anti-hypertension, gene therapy and biosafety as a drug carrier, providing new methods and ideas in the biomedical field.

Objective·To compare the clinical features between different subtype bipolar patients with first mania episode, and to contribute to early identification of bipolar disorder. Methods·This study was based on the database named as National Bipolar Mania Pathway Survey (BIPAS). From November 2012 to January 2013, bipolar patients from 26 mental health facilities in China were enrolled in current study. The clinical features were compared between mania patients of different subtypes, including hypomania (groupⅠ), mania without psychotic symptoms (groupⅡ), mania with psychotic symptoms (group Ⅲ) and mixed state (group Ⅳ). Results·There was significant difference in the percentage of clinical symptoms between different subtype bipolar patients with first mania episode, especially the mania and anxiety related symptoms. Group Ⅰ, Ⅲ , Ⅳ were further compared with groupⅡ, which was considered as the typical bipolar disorder. The results showed that the mania related symptoms was significantly higher in group Ⅱ, but anxiety related symptoms was significantly higher in group Ⅰ, Ⅲ, Ⅳ. Moreover, Logistic regression analysis revealed that more eloquent or humor and unusually restless could be in favor of the diagnosis of hypomania; younger and mania or hypomania as first episode might be in favor of the diagnosis of mania with psychotic symptoms; older, national minorities and unusually restless could be in favor of the diagnosis of mixed state. Conclusion·The clinical features between different subtype bipolar patients with first mania episode are various, and analysis of the clinical features can contribute to early identification of bipolar disorder.

Objective To self-design a small metal instrument sorting device for dental department and solve the problems of complex process, being easy to cause damage and loss by using manual sorting metal small apparatus. Methods We designed a metal instrument sorting device through its magnetic adsorption function which could pick up dental metal equipment at once. Results The sorting device owned good clinical effects. Application of the technology optimized the workflow, reduced the risks of needle stick injury occupational exposure and the device damage and loss, and improved work efficiency. Conclusions The medical application of metal instrument sorting devices for dental department can improve nursing′ work efficiency and mitigate the risk of infection.

Objective:To explore the relationship between the expression of neuropilin-1 (NRP-1) on Treg cells and its ligands semaphorins-3A (Sema3A) , transforming growth factor-β 1 (TGF-β 1) as well as the balance of type 1 helper T cells (Th 1) and type 2 helper T cells (Th 2) cells. Methods:This study enrolled 62 patients with immune thrombocytopenia (ITP; 33 and 29 newly diagnosed and chronic ITP, respectively) from March 2014 to May 2015. Consequently, 30 healthy people in the same period were selected as the normal control group. The expression of NRP-1 in Treg cells was detected via flow cytometry. The Sema3A, TGF-β 1, IFN-γ, and IL-4 levels in plasma were detected by enzyme-linked immunosorbent assay. The real-time polymerase chain reaction technique was used to detect the mRNA expression levels of NRP-1, Sema3A, and TGF-β 1. The one-way analysis of variance and independent sample t-test was used for comparison between three and two groups, respectively. Correlations among the mRNA expression levels of NRP-1, Sema3A, and TGF-β 1 were assessed via Spearman correlation coefficients. Results:Treg cells in the newly diagnosed ITP group significantly increased compared with those in the chronic ITP and normal control groups. The expression of NRP-1 decreased[ (0.15 ± 0.03) %, (0.33 ± 0.15) %, and (0.46 ± 0.06) %; P<0.01], the plasma Sema3A level increased[ (8.10 ± 1.32) μg/L, (7.41±1.30) μg/L, and (2.88±0.82) μg/L; P<0.01], and the plasma TGF-β 1 level decreased[ (16.50±3.36) μg/L, (35.17±10.26) μg/L, and (41.00±10.02) μg/L; P<0.01]. Moreover, the level of plasma IFN-γ increased[ (17.21+2.80) ng/L, (10.23+1.59) ng/L, and (8.18+3.27) ng/L; P<0.01], and the ratios of Th 1/Th 2 (IFN-γ/IL-4) increased (1.29±0.30, 0.72±0.16, and 0.61±0.27; P<0.01) . The mRNA expressions of NRP-1 and Sema3A in the newly diagnosed ITP and chronic ITP groups were lower than that in the normal control group ( P<0.01) . Consequently, the NRP-1 mRNA expression was positively correlated with Sema3A and TGF-β 1 mRNA expression in the newly diagnosed ITP group. Conclusion:NRP-1 played an essential role in the pathogenesis of ITP.

Objective:To investigate the pathogenesis and prognosis of transformation of primary myelofibrosis (PMF) to B-cell acute lymphoblastic leukemia (B-ALL).Methods:The diagnosis and treatment process of a patient transferred from PMF to B-ALL in Affiliated Tumor Hospital of Zhengzhou University in November 2018 were retrospectively analyzed, and the relevant literature was reviewed.Results:The patient was a 64-year-old female, she was initially diagnosed with PMF, and then she developed B-ALL 17 months later after receiving treatment of prednisone, danazole, levamisole, aspirin, thalidomide and jaktinib. After induction therapy, the patient received 8 months of continuous remission, and then the reexamination showed relapse. There was no remission after reinduction therapy. The patient gave up treatment and was discharged 2 months later. JAK2 V617F gene mutation was positive before and after leukemia transformation.Conclusions:The patients with transformation of PMF to B-ALL have poor clinical prognosis and short survival time. The possible mechanism of its transformation may be related to additional genetic events or certain high-risk genes. However, the specific mechanism is still unclear, and further investigation of the etiology is needed to seek targeted treatment.

Objective To explore the difference in efficacy between multiparametric MRI (Mp-MRI) based on prostate imaging reporting and data system version 2 (PI-RADS v2) and abbreviated biparametric MRI (Bp-MRI) in detecting prostate cancer (PCa) and clinically significant prostate cancer (csPCa), and to evaluate the consistency of image interpretation between different readers. Methods The imaging, pathological and clinical data of patients with prostatic Mp-MRI in our hospital from February 2015 to June 2018 were retrospectively analyzed. At the beginning, 250 patients were randomly selected. Two radiologists visually evaluated the images of those patients using two 5-point scoring schemes based on Mp-MRI and Bp-MRI. The remaining cases were independently proceeded by one of the radiologists using two schemes respectively. Weighted Kappa test was used to assess the consistency of the results interpreted by the two radiologists. The receiver operating characteristic (ROC) curve was used to evaluate the efficiency of the two scoring schemes in detecting PCa and csPCa, and with Z test to investigate whether there was any difference in detection efficiency between the two schemes. Results Nine hundred and seventy eight patients were eventually enrolled in the study. The results of the consistency assessment showed that there was good agreement between the two radiologists, whether using Mp-MRI or Bp-MRI, with the weighted Kappa coefficient of 0.800 and 0.812, respectively. The ROC curve analysis showed that the area under the curve (AUC) of PCa detected by Mp-MRI and Bp-MRI was 0.873 and 0.879, respectively, and the AUC of csPCa detected was 0.922 and 0.932, respectively. In addition, there was no statistically significant difference between the AUC of PCa and csPCa detected by the two schemes (P>0.05). Conclusion The Bp-MRI scoring scheme has good stability in the evaluation of benign and malignant prostate, and its detection efficiency of PCa or csPCa is not lower than that of standard Mp-MRI based on PI-RADS v2.