Objective To observe the neuroprotection of Baicalin on brain damage following experimental intracerebral hemorrhage in rats.Methods Rat model of intracerebral hemorrhage was induced by collagenase method.The rats were randomly divided into sham operation control group,model group,high-,middle-and low-dose drug group,treated with different dose of Baicalin.The brain water content and the level of SOD,MDA,NO and NOS were measured at the third and seventh day after modeling repectively.Results Compared with the sham operation control group,the brain water content and the level of MDA,NO and NOS were significantly higher,and the level of SOD was significantly lower in model group.The brain water content and the level of MDA,NO and NOS were significantly lower,and the level of SOD was obviously higher in high-,middle-and low-dose Baicalin group than that in model group.Conclusion Baicalin has evident protective effect on brain damage after experimental intracerebral hemorrhage in rats,which maybe related to the increase of SOD and decrease of MDA,NO and NOS.

In order to change the situations such as students’passivity and low enthusiasm in the traditional experimental teaching of Microbiology and improve students’comprehensive qualities,exploration and attempt on experimental teaching reforms including teaching contents,teaching modes,laboratory management and evaluation system of examination were done.Teaching practices showed that the normalized ex- periment syllabus based on the correct orientation of experimental teaching of Microbiology,the actualization of teaching mode of basic skill training-integrated experiment-designed experiment and the management of opening laboratory were effective measures in improving experimental teaching of Microbiology.

Objectives To explore the effects of the blood supply extent on the temperature of target site of tumor and volume of coagulation necrosis (V),and to provide experimental evidence for further precise control of dosage of high intensity focused ultrasound (HIFU) and improve the efficiency of HIFU in the treatment.Methods Twenty-four rabbit liver VX2 tumor models were established and were divided into four groups:10 d group,15 d group,20 d group,no blood supply group (rabbits were put to death in the 10 d after the models were established).The same irradiation parameters of HIFU were used to irradiate the hepatic tumor tissue of every group,the real-time temperature of target site of tumor were measured,the software from temperature controller was used to plot the time-temperature curve (TTC),V was measured after HIFU.Residual tumor tissue was resected for pathological observation and microvascular density (MVD) determination.Results (1) Histopathological analysis showed that the extent of a tumor's blood supply followed the order 10 d group ＞ 15 d group ＞ 20 d group (P ＜ 0.01).(2)Tmax,T1,k1:betweengroups had no statistical difference among 10 d group,15 d group,20 d group (P ＞0.05),T T1,and k1 between three groups with no blood supply group had statistical difference (P ＜ 0.05).(3) k2:10 d group ＞ 15d group ＞ 20d group ＞ no blood supply group;T2:10d group ＜ 15d group ＜ 20d group ＜ no blood supply group;(4)V:10 d group ＜ 15 d group ＜ 20 d group ＜ no blood supply group.Conclusions The extent of a tumor's blood supply had a significant effect on the temperature-decrease phase but not on the temperature-increase phase during HIFU treatment.The more abundant blood supply of the tumor was,the faster heat abstraction after HIFU was;and the easier the tissue return to normal temperature,the smaller the volume of coagulation necrosis tissue were.

Objective To analyse the problems presented in external quality assessment (EQA)for blood cytomorphology and propose measures for improvement.Methods Statistical analysis was performed on EQA results for blood cytomorphology from 2011 to 2013 in Shaanxi Province,including general information of participant laboratories,coincident rate,and reported incorrect results.EQA for blood cytomorphology was held two times every year in Shaanxi province,with ten pictures inclu-ding bone marrow and peripheral blood smear each time.The compact disc including twenty pictures was given to partici-pants by EMS.Participants reported two EQA results in April and September each year.The center statisticed the EQA re-sults and provided the EQA reports to every participants in June and November.Results Participating laboratories increased from 76 in 2011 to 163 in 2013.The ratio of laboratories with the coincidence rate≥80% was 80%,47%,44%,55%,77%and 96% respectively.The number for single cell with the coincidence rate≥80% was 38.The coincidence rate of peripheral blood cells was higher than that of the bone marrow on the whole.Causes of incorrect results included cell lines’misclassifi-cation,growth stage’s misclassification,insufficient identification of abnormal cytomorphology,and so on.Conclusion The identification of blood cytomorphology was unbalanced in different leveled hospitals in Shaanxi Province.To develop EQA of blood cytomorphology definitely has a positive role in improving the experimenters’skill of identifying cytomorphology.

Antibodies, Monoclonal ; administration & dosage ; Antibodies, Monoclonal, Humanized ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; metabolism ; Drug Administration Schedule ; Female ; Humans ; Neoadjuvant Therapy ; Paclitaxel ; administration & dosage ; Receptor, ErbB-2 ; metabolism ; Trastuzumab

Androstadienes ; therapeutic use ; Antineoplastic Agents, Hormonal ; administration & dosage ; Aromatase Inhibitors ; administration & dosage ; Breast Neoplasms ; drug therapy ; Drug Administration Schedule ; Female ; Humans ; Nitriles ; administration & dosage ; Postmenopause ; Triazoles ; administration & dosage

Objective To construct a luciferase reporter plasmid containing interferon regulatory factor 3(IRF-3)human gene promoter and to evaluate promoter activity in human embryonic kidney(HEK)-293 cells.Methods The 1 000 bp fragment was amplified by PCR with human genomic DNA as a template and was directionally cloned into pGL3-basic multiple cloning sites to construct the luciferase repor-ter plasmid pGL3-pIRF-3.Transfection of HEK-293 cells with the promoter-driven lucife-rase construct was performed to induce lucife-rase gene expression and calculate the relative luciferase activity unit(RLU).Promoter sequence of 1 000 bp upstream of transcription initiation site of IRF-3 was analyzed by using Promoter 2.0 Prediction software.Results DNA sequencing and restriction endonuclease analysis verified the successful construction of the plasmid pGL3-pIRF-3.This IRF-3 promoter exhibited a strong promoter activity with an increase of 42.2-fold of RLU in HEK-293 cells when compared with pGL-3 basic vector.The transfection experiment confirmed that the levels of its activation were significantly higher than that in controls in HEK-293 cells.Function analysis of IRF-3 promoter disclosed seve-ral GATA-1 and specific protein 1(Sp1) sites and E2F in minimal promoter region.Conclusion The plasmid pGL3-pIRF-3 promoter is successfully constructed and has a strong basal promoter activity in HEK-293 cells.

Optic neuritis is one of the most important neuro-ophthalmologic diseases which cause vision loss in young adults. There are obvious differences in the prevalence of optic neuritis in different countries and regions. Through the review of the related literature at home and abroad in recent years, this article summarizes the etiology and epidemiological characteristics of optic neuritis. lt is expected to provide reference and comparison for the epidemiological investigation of cross regional, multi-center cooperation.

Objective: To learn the influencing factors for self-violent thoughts and behaviors among the ninth-grade students in Jiangbei District of Ningbo, so as to provide the basis for carrying out psychological intervention. Methods: The ninth-grade students in a junior high school each of the six streets ( towns ) in Jiangbei District were recruited by multi-stage cluster sampling method from October to November 2018. A self-designed questionnaire was used to investigate the general information, life style, psychological condition, self-violent thoughts and behaviors in the latest year. Multivariate logistic regression model was used to analyze the influencing factors for self-violent thoughts and behaviors. Results: A total of 1 300 questionnaires were issued and 1 238 valid ones were recovered, with an effective rate of 95.23%. The prevalence rates of self-violent thoughts and behaviors among the ninth-grade students were 16.88% and 8.48%. TheResults of the multivariate logistic regression analysis showed that abnormal marital status of parents ( OR=2.074, 95%CI: 1.139-3.775 ) , no moderate physical activity ( OR=1.764, 95%CI: 1.101-2.826 ) , sleeping less than 8 hours ( OR=1.858, 95%CI: 1.273-2.712 ) , alcohol consumption ( OR=2.108, 95%CI: 1.448-3.070 ) , sense of despair ( OR=6.397, 95%CI: 4.195-9.757 ) , sense of anxiety ( OR=4.094, 95%CI: 2.725-6.151 ) , sense of loneliness ( OR=1.879, 95%CI: 1.241-2.854 ) , and cyber-bullying ( OR=5.155, 95%CI: 2.780-9.556 ) were risk factors for self-violent thoughts; not living with parents ( OR=2.057, 95%CI: 1.021-4.145 ) , alcohol consumption ( OR=1.756, 95%CI: 1.074-2.872 ) , sense of despair ( OR=7.197, 95%CI: 4.365-11.864 ) , sense of anxiety ( OR=5.832, 95%CI: 3.276-10.382 ) , fighting ( OR=2.272, 95%CI: 1.219-4.232 ) and physical bullying ( OR=3.462, 95%CI: 1.135-10.558 ) were risk factors for self-violent behaviors. Conclusion Drinking, family relationship, bullying, and mental health problems such as sense of despair and anxiety were associated with the self-violent thoughts and behaviors of ninth-grade students.

Objective To investigate the possible mechanism of curcumin inhibition to murine melanoma growth.Methods Melanoma cell line B16F10 was injected subcutaneously into the outer side of mouse right thigh to establish a melanoma-bearing mouse model.Seven days after the establishing the model, these mice were treated with intraperitoneal injection of curcumin at 50 and 100 mg/kg respectively or RPMI 1640 culture medium as control.Fourteen days later,the mice were killed,tumor weight was calculated;the tumor nuclear factor?B activity and survivin mRNA expression were measured by Western blot and RT-PCR,respectively.Results The tumor weight was significantly lower in the curcumin-treated mice than that in the controls (P