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Objective:To investigate the micro RNA (miR)-1182 expression in glioma, and explore the regulation role and mechanism of miR-1182 overexpression in malignant phenotype of glioma cells.Methods:(1) The data of miR-1182 expressions of 198 glioma samples and survival of these glioma patients were downloaded from the official website of Chinese Glioma Genome Atlas(CGGA), and the differences of miR-1182 expression levels among glioma tissues of different pathologic types and different WHO grades were compared. Kaplan-Meier survival curve was used to analyze the relation between miR-1182 expression level and patient survival. (2) Human glioma cell lines A172, LN229, T98G, U87, and U251, and human normal astrocyte cell line NHA were routinely cultured in vitro, and the miR-1182 expression levels in each group were detected by real-time quantitative PCR (qPCR). (3) U87 and U251 cells were divided into miR-1182 transfection group and negative control group; the miR-1182 mimics and miR-1182 negative control sequence were transfected, respectively. After 48 h of transfection, 5-ethynyl-2'-deoxyuridine (EdU) staining was used to detect the cell proliferation ability, flow cytometry was used to detect the cell apoptosis, Transwell assay was used to detect the cell migration ability, and Western blotting was used to detect the expression levels of cyclin (C-myC, C-Jun, CCND1, and P21), phosphatidylinositol 3 kinase/protein kinase B (PI3K/Akt), and epithelial-mesenchymal transformation (EMT) pathway related proteins (N-cadherin, β-catenin, and vimentin). Results:(1) The miR-1182 expressions in glioma tissues of WHO grading III and IV were significantly lower as compared with those in glioma tissues of WHO grading II ( P<0.05). The median survival time in patients from the low miR-1182 expression group ([701.00±11.14] d) was significantly shorter than that in the high miR-1182 expression group ([1812.00±23.21] d, P<0.05). (2) As compared with that in NHA cell group, the miR-1182 expression levels in A172, LN229, T98G, U87 and U251 cell groups were significantly decreased ( P<0.05), and the decrease was most significant in U87 and U251 cell groups. (3) As compared with the negative control group, the U87 and U251 cells in miR-1182 transfection group had significantly weaker proliferation ability, significantly higher apoptosis rate, significantly decreased number of transmembrane cells, significantly decreased protein expression levels of C-MyC, C-Jun and CCND1, significantly increased P21 protein expression level, significantly decreased expression levels of PI3K, phosphorylated (p)-PI3K, Akt and p-Akt, and significantly decreased expression levels of N-cadherin, β-catenin and vimentin ( P<0.05). Conclusions:Glioma patients with low miR-1182 expression have poor prognosis. Low miR-1182 expression is noted in glioma cells. Overexpression of miR-1182 can inhibit the malignant phenotype of glioma cells, which may be related to cell cycle-related proteins, PI3K/Akt, and EMT pathway ralated proteins.
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Objective To investigate the expressions of DEAD-box (DDX) 5 and hepatoma-derived growth factor (HDGF) in glioma samples and their relations with prognoses of the patients.Methods Seventy-eight samples from the lesions and 78 samples from the adjacent tissues of glioma patients,admitted to hospital from February 2013 to June 2017,were selected.The protein expressions of DDX5 and HDGF were detected by immunohistochemistry.The positive expression rates of DDX5 and HDGF in the glioma tissues of patients with different clinical characteristics were compared.Kaplan-Meier method was used to plot the survival curves of patients with DDX5 positive expression and DDX5 negative expression;Log-rank test was used to compare the survival rates of these patients.Results Among 78 patients,the positive expression rates of DDX5 and HDGF in the lesion group were 85.9％ and 80.8％,which were significantly higher than those in the paracancerous group (24.4％ and 28.2％,P＜0.05).There were no significant differences in the positive expression rates of DDX5 and HDGF in patients of different genders,ages,or body mass indexes (P＞0.05);patients with tumor size ＞ 3 cm had significantly higher positive expression rates of DDX5 and HDGF as compared with those with tumor size＜3 cm (P＜0.05);patients with WHO grading Ⅲ-Ⅳ had significantly higher positive expression rates of DDX5 and HDGF as compared with those with WHO grading Ⅰ-Ⅱ (P＜0.05);patients with intracranial cerebrospinal fluid metastasis had significantly higher positive expression rates of DDX5 and HDGF as compared with those without intracranial cerebrospinal fluid metastasis (P＜0.05).Log-rank analysis showed that the overall survival of patients from the DDX5 positive expression group was significantly lower than that of patients from the DDX5 negative expression group (P＜0.05).Conclusion DDX5 and HDGF are highly expressed in glioma tissues,and their expressions are related to tumor sizes,WHO grading and intracranial metastasis;patients with positive DDX5 expression have poor prognosis.
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Objective@#To evaluate adolescents’ self-esteem and explore its influencing factors in order to provide basic evidence for improving self-esteem level and mental health of adolescents.@*Methods@#A total of 5 709 adolescents of different characteristics from both urban and rural areas in six provinces were investigated anonymously with the method of computer-assisted self-interview (CASI). Self-esteem was evaluated by Self-Esteem Scale (SES, scored 10-40 points).@*Results@#The average score of self-esteem was 28.15,28.40, 28.97 and 27.45 point for junior high students, senior high students, college students and out-of-school adolescents, respectively. The difference of the scores among the four groups was statistically significant(F=27.64, 14.41, P<0.01). More than 80% adolescents felt they were people of worth, were able to do things as most other people, took a positive attitude toward themselves and were satisfied with themselves. About 50% of adolescents thought they were no good at all at times. Less than 20% adolescents thought they had enough respect for themselves. About 11.57% to 22.22% of adolescents felt sad about their own gender, about 37.56% to 61.49% of adolescents often or sometimes felt sad about their body image. The multiple linear regression analysis showed that those who had a good overall feeling of family, satisfied with their own gender, and less worried about their body image tended to have a higher self-esteem scores among 4 groups(P<0.01). Other related influencing factors included parental education level, family economic status, only-child or not, birth place and parental preference for gender of their child.@*Conclusion@#Adolescents’ self-esteem was fair, and many factors were associated with it. It is necessary to strengthen the education on gender equality among parents and adolescents and to pay more attention to mental health of the adolescents, who were in rural areas, with poor family atmosphere and economic status.
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Objective To investigate the effect of cyclooxygenase (COX)-2 inhibitor celecoxib on learning and memory capabilities of transgenic mice with five familial Alzheimer's disease (5×FAD) and its potential mechanism.Methods Totally 32 6-month male 5 ×FAD transgenic positive mice were selected and randomly divided into two equal groups (n=16):a model group (group AD) and a celecoxib treatment group (group S).The mice in group AD were fed with normal diet while those in group S took celecoxib in their diet.Another 16 wide-type (WT) gene mice,served as a normal control group (group WT),received normal diet.After treatment for 14 d,water maze test was arranged for the 3 groups to detect their learning capability.Thioflavin-S staining was conducted to detect the number and area of plaques in the cerebral cortex,hippocampus and thalamus of the mice,immunofluorescence staining was used to detect expressions of 4G8 and ion calcium junction protein molecule 1 (Iba-1) in the brain tissues,and quantitative real time-PCR (q-PCR) was used to detect expressions of markers of M1 and M2 microglia cells in the brain tissues.Results The latency periods in finding the platform in mice of group WT,group S and group AD successively increased on 24nd 3rd and 4th d of treatment,with significant differences among the 3 groups (P＜0.05).The ratio of time of staying in target quadrant to total time in mice from group AD was significantly lower than that in group WT and group S (P＜0.05).The average plaque number and volume per slice in group S were significantly reduced than those in group AD (P＜0.05).Immunofluorescence staining showed no plaque formation and a small number of activated microglia cells in group WT,but plaque formation and a large number of activated microglia cells in group AD and group S.The expression of M1 marker in brain tissues was significantly decreased and the expression of M2 marker was significantly increased in group S than those in group AD (P＜0.05).Conclusion COX-2 inhibitor celecoxib improves the learning and memory capabilities of 5×FAD mice,which is closely related to polarization of microglia cells.
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Objective To investigate the effect of micro RNA (miR)-122 on cerebral ischemia/reperfusion (I/R) injury and its mechanism in mice. Methods Thirty-six male C57BL mice were randomly divided into a sham-operated group, a model group, a miR-122 mimics group and a miR-122 inhibitor group (n=9). The miR-122 NCs, inhibitor fragments and overexpression fragments were injected into the lateral ventricles of mice from the later 3 groups; 10 min after that, middle cerebral artery I/R injury models were induced by reforming Longa method. Twenty-four h after model making, real-time fluorescent quantitative PCR (qRT-PCR) was used to detect the miR-122 and insulin like growth factor 1-receptor (IGF-1R) mRNA expressions; cell apoptosis in the peripheral region of cerebral infarction was detected by immunofluorescent staining; the volumes of cerebral infarction and brain edema were measured by TTC staining; and IGF-1R protein expression was detected by Western blotting. Results As compared with the sham-operated group, the model group had significantly increased miR-122 expression and significantly increased brain infarction volume and edema volume (P<0.05). As compared with the model group, miR-122 mimics group had significantly increased miR-122 expression and significantly increased brain infarction volume and edema volume (P<0.05), while miR-122 inhibitor group had statically decreased miR-122 expression and significantly decreased brain infarction volume and edema volume (P<0.05). The number of apoptosis of peripheral cells in the cortical infarction area of mice in the sham-operated group, model group and miR-122 mimic group became lager successively, while the number of apoptosis of peripheral cells in the cortical infarction area of mice in the miR-122 inhibitor group was smaller than that in the model group. The IGF-1R mRNA and protein expressions in the cortical infracted peripheral zone of model group were significantly decreased as compared with those in the sham-operated group (P<0.05); the IGF-1R mRNA and protein expressions in the miR-122 mimics group were significantly decreased as compared with those in the model group (P<0.05), while those in the miR-122 inhibitor group were significantly increased as compared with those in the model group (P<0.05). Conclusion MiR-122 may be involved in the regulation of cerebral I/R for brain injury by inhibition of IGF-1R pathway.
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Objective To investigate and study the relationship between abnormal monitoring and prognosis of long range video electroencephalogram(VEEG)in patients with intractable epilepsy. Methods 100 patients from March 2012 to May 2017 in our hospital whose diagnosis and treatment of refractory epilepsy were the research object,all patients were given VEEG monitoring records,epilepsy typing characteristics and antiepileptic drug(AEDs)use survey,prognosis of all patients and the correlation analysis. In 100 cases,GTCS 60 cases,CPS 30 cases,CPS-GTCS 10 cases;56 cases treated with sodium valproate,lamotrigine treatment in 44 cases. Results VEEG monitored 80 cases of epileptiform discharge in 100 patients and 20 cases without epileptiform discharge. There was no significant difference in the incidence of epileptiform discharges between different epileptic patients in VEEG monitoring(P > 0.05),and there was no significant difference in the incidence of epileptiform discharges between VEEG patients in different medication groups(P > 0.05). The total effective rate of treatment in the VEEG epileptiform discharge group was 91.3%,which was significantly lower than that of the VEEG non epileptic discharge group (100%,P < 0.05). The main adverse reactions during treatment were drowsiness , abnormal behavior, abnormal sensation and gastrointestinal reaction. There was no significant difference in monitoring epileptiform discharges between VEEG patients (P > 0.05). All adverse reactions were improved after symptomatic treatment. Conclusion The VEEG plays an important role in guiding the patients with refractory epilepsy for epilepsy typing characteristics and AEDs treatment ,so it has significant correlation to the prognosis , and it also has an important significance in assessing the prognosis.
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Objective To study the pathogenesis and the effect of early drugs therapy of symptoms after concussion.Methods One-hundred and thirteen patients with symptoms after suffered concussion enrolled in the study and divided randomly into three groups.The patients of different groups were treated respectively with drugs,i.e.erigeron breviscapus,nimodipine,energy mixture.Symptom Check-List 90 ( SCL-90 ) and electroencephalogram(EEG) and cerebral blood flow of trancranial Doppler(TCD) were examined in the early and late stage of post-concussion.Normal population were recruited as control.All examination results and the effect of treatment were compared between treatment group and control group.Results In the scores of SCL-90,the factor scores of somatization symptom,compulsion,depressive disorder,anxiety disorders,and hostile symptom in 113 post-concussion patients in early stage were all higher than those in the normal( t =10.78,2.08,9.53,11.09 and 2.52,P ＜0.01or P ＜0.05),and as well as that of somatization symptom,depressive disorder,anxiety disorders,terror and mental disorder symptom in 12 post-concussion patients in late stage compared to normal( t =3.21,6.85,3.07,3.14 and 4.73,Ps ＜ 0.01 ).The test of EEG was abnormal in 57.4 ％ of patients in early stage and in 33.3％ in the late stage.Of all TCD results,67.0 ％ was abnormal in the early stage and 25.0％ in the late stage,The disappearance rate of post-concussion symptoms in the 14th day was significantly higher in the erigeron breviscapus group ( 45.0％ ) than in the nimodipine group ( 23.7％ ) ( x2 =3.91,P ＜0.05 ) and in the energy mixture group ( 20.0％ ) ( x2 =5.25,P ＜ 0.05 ).The disappearance rate of postconcussion symptoms in the 30th day in the energy mixture group(40.0％ ) was significantly lower than those in nimodipine group( 68.4％ )( x2 =5.94,P ＜ 0.05 ) and in erigeron breviscapus group( 75.0％ )( x2 =9.43,P ＜ 0.01 ).The occurrence rate of post-concussion sequelae was higher in the energy mixture group ( 22.9％ )than in the nimodipine group ( 5.2％ ) ( x2 =4.77,P ＜ 0.05 ) and in the erigeron breviscapus group (5.0％ )( x2 =5.15,P ＜ 0.05 ) three month after injuries.Conclusion The occurrence of symptoms originated from the organic damage of brain tissue.However,its changes were influenced by psychologic factors after concussion.Early vasodilative drugs therapy could improve the recovery of patients with post-concussion symptoms in time and decrease the occurrence of post-concussion sequelae.
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Objective To observe the curative effects of malignant brain swelling after brain injury by using the operations of standard large Craniotomy decompression and removal of necrotic brain tissues. Methods 80 cases of malignant brain swelling after severe brain injury were observed. The standard decompression surgery of large era-niotomy routine were used in 40 cases,while the operations of standard large craniotomy decompression and removal of necrotic brain tissues were used in the other 40 cases. The curative effects of the results after 15 days and six mon-ths were analyzed. Results The incidence of intracranial hypertension (37.5%, 15/40 ) and brain tissue incisional hernia (32.5% ,13/40)of the group using standard large craniotomy decompression and removal of nee-rotic brain tissues treatment was significantly lower than that of simple standard large craniotomy decompression treat-ment group [15.0% (6/40) vs 10.0% (4/40)] after 15 days (P<0.05 ). The prognosis excellent rate ( good + re-sidual) of the group using standard large Craniotomy decompression and removal of necrotic brain tissues treatment was significantly higher (60.0%) than that of simple standard large craniotomy decompression treatment group (40.0%) after six months (P<0.05 ). Conclusion The operations of standard large craniotomy decompression and removal of necrotic brain tissues can effectively reduce the intracranial hypertension of malignant brain swelling after trauma injury,and reduce mortality and morbidity of severe brain injury.
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[Objective] Domestic literatures on misdiagnosis of osteonecrosis of femoral head(OFH)in the past 15 years are reviewed to distinguish OFH from other 9 similar diseases.The symptoms in early,middle and late stages of OFH are similar to other diseases,which is easy to be misdiagnosed as OFH.Pathological changes in different hip joint diseases have different specific performances.Careful and discriminative diagnosis is important in clinical practice.
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ve To explore the methods for sanitary safety test of water purifier. Methods The water purifiers using active carbon, KDF and molecular sieve as absorptive materials and hollow fibers as filter materials were collected for sanitary safety test. The water purifiers were irrigated by pure water continuously for 15, 30, 45 and 60 min respectively first, and then were immersed continuously for 24 h by pure water, the variations of turbid-ity, pH value, total dissolved solid and chemical oxygen demand (COD), etc, of the immersing water were observed. The water purifiers were also irrigated continuously for 1 h at first, and then were immersed continuously for 5, 15, 24, 48, 72 h and 1 week by pure water respectively, in the end, the variations of those 4 sanitary indexes mentioned above were also detected. Results Significant differences were observed in those 4 indexes between the immering water samples obtained after 15 min-irrigation and 30 min-irrigation, 30 min-irrigation and 45 min-irrigation (P