Objective To explore the roles of executive function deficits in adolescent violent behaviors. MethodsAccording to the findings of general state questionnaire,modified overt aggression scale and interview,93 male juvenile delinquents were randomly divided into violent antisocial group(n=47) and nonviolent antisocial group(n=46).Besides,50 male adolescents in vocational schools were served as normal controls.All the participants were subjected to Wechsler adult intelligence scale(WAIS) test,Wisconsin card sorting test(WCST),Stroop color-word test(CWT) and Tower of Hanoi(TOH) test. Results There was no significant difference in IQ between violent antisocial group and nonviolent antisocial group(P0.05).In CWT,violent antisocial group and nonviolent antisocial group had significant difference with normal control group in number of correct responses of Stroop interference effects(SIE)(P0.05).In TOH,the total time spent in violent antisocial group and nonviolent antisocial group was significantly longer than normal control group(P0.05). Conclusion There exists executive function deficits in male adolescents with unlawful acts,and violent behaviors may have a closer relationship with executive function deficits.

Objective The purpose of the present study was to examine the reliability and validity of the Chinese version of the impulsive-premeditated aggression scale (IPAS) in a sample of Chinese adolescents with aggression. Methods 126 adolescents completed the IPAS,Barratt impulsive scale and self-report questionnaires. In order to assess test-retest reliability, the IPAS was re-administered to 30 participants 3 weeks later.Results Item analysis showed that IPAS had satisfactory item discrimination, 6 items were excluded in the later analysis. The internal consistency of the IPAS Cronbach alpha was 0.77 and the test-retest reliability was 0.74.Exploratory factor analysis demonstrated two stable factors of aggression with good internal consistency and construct validity, the value of KMO was 0.646, the χ2 value of Bartlett test was 691.93 ( P <0.001). The confirmatory factor analysis showed that the value of χ2/df,GFI,AGFI,RMSEA were 1.42,0.874,0.837 and 0.058 respectively.The whole scale and the two secondly scales all correlated with BIS-11 and MOAS.Conclusion The results of the current study indicate that the Chinese version of the IPAS is a useful tool to subtyping aggressive behavior among adolescents, but it still need to be modified to apply in China.

To study the relation between drug release and the drug status within curcumin-loaded microsphere, SPG (shirasu porous glass) membrane emulsification was used to prepare the curcumin-PLGA (polylactic-co-glycolic acid) microspheres with three levels of drug loading respectively, and the in vitro release was studied with high-performance liquid chromatography (HPLC). The morphology of microspheres was observed with scanning electron microscopy (SEM), and the drug status was studied with X-ray diffraction (XRD), differential scanning calorimetry (DSC) and infrared analysis (IR). The drug loading of microspheres was (5.85 ± 0.21)%, (11.71 ± 0.39)%, (15.41 ± 0.40)%, respectively. No chemical connection was found between curcumin and PLGA. According to the results of XRD, curcumin dispersed in PLGA as amorphous form within the microspheres of the lowest drug loading, while (2.12 ± 0.64)% and (5.66 ± 0.07)% curcumin crystals was detected in the other two kinds of microspheres, respectively, indicating that the drug status was different within three kinds of microspheres. In the data analysis, we found that PLGA had a limited capacity of dissolving curcumin. When the drug loading exceeded the limit, the excess curcumin would exist in the form of crystals in microspheres independently. Meanwhile, this factor contributes to the difference in drug release behavior of the three groups of microspheres.
Calorimetry, Differential Scanning ; Curcumin ; chemistry ; Drug Liberation ; Lactic Acid ; Microscopy, Electron, Scanning ; Microspheres ; Polyglycolic Acid ; X-Ray Diffraction

OBJECTIVE To investigate the prevalence of nasal colonization among health care workers(HCWs).METHODS Nasal swabs from 93 ICU workers and 98 other clinical workers were cultured and isolated and the tests of antibiotic susceptibility were performed by using paper diffusion method.RESULTS In total,214 isolates of 8 species from 191 health care workers were recovered,of which 187 isolates were coagulase-negative Staphylococcus(CNS)(the carriage rate of 93.71%) and 8 isolates were Staphylococcus aureus(the carriage rate of 4.19%).While the total Gram-negative bacteria carriage rate was 14.14%(27 isolates).The most frequent CNS species were S.epidermidis and S.haemolyticus.The antibiotic susceptibility profiles of S.aureus and CNS differed sharply: all 8 S.aureus strains were resistant to penicillin but were fully susceptible to oxacillin,in contrast,most of CNS were resistant to both penicillin and oxacillin.The carriage rate of CNS(60.2%)and Gram-negative bacteria(26.9%)in HCWs of ICU were higher than other HCWs(P

Objective To re-evaluate the immunogenicity of meningococcal serogroups A and C polysaccharide vaccine among a healthy population of age 5 to 59.Methods Pre and post-vaccination ser-um samples were collected from the subjects involved in a randomized , controlled clinical trial conducted in 2005 at Hechi, Guangxi, China.Enzyme-linked immunosorbent assay (ELISA) was performed for the quan-titative detection of specific anti-capsule IgG antibody against meningococcal serogroups A and C in serum samples.Serum bactericidal assay ( SBA) was used to measure the bactericidal antibody activity against se-rougroups A and C bacterial strains .Results Geometric mean concentrations (GMCs) of specific anti-cap-sule IgG antibody were 23.66 μg/ml and 78.83 μg/ml for serogroup A (P<0.05), and 1.23 μg/ml and 51.25 μg/ml for serogroup C (P<0.05) in serum samples of pre and post-vaccination, respectively.Be-fore immunization , 99% of serum samples ( 97/98 ) showed serogroup A-specific IgG concentration ≥2μg/ml, which reached up to 100%(98/98) after vaccination (P>0.05).The percentage of serum sam-ples with serogroup C-specific IgG concentration ≥2 μg/ml rose from 20%to 99% after vaccination ( P<0.05).The ratio of positive serum samples with at least four times of increases in concentration of specific IgG against serogroup A and serogroup C after vaccine immunization were 34% and 100%, respectively . The rSBA geometric mean titers ( GMTs) for serogroups A and C in serum sample of post-vaccination were respectively elevated from 1164 to 5530 (P<0.05), and from 4 to 6225 (P<0.05).The percentage of se-rum samples with rSBA GMTs≥128 increased from 91% to 99% for serogroup A (P>0.05), and from 14%to 96%for serogroup C (P<0.05) after vaccination.The rSBA GMTs with at least four times of in-creases after vaccination were detected respectively in 53% and 100% of serogroups A and C vaccinated subjects.Pearson correlation coefficient between IgG concentration and rSBA GMTs was r=0.15 (pre) and r=0.23 (post) for serogroup A, and r=-0.14 (pre) and r=0.58 (post) for serogroup C (P<0.05). Conclusion This study has demonstrated an efficient and sustained immunogenicity with meningococcal sero -groups A and C polysaccharide vaccine as evidenced by the data from standardized assays of ELISA and SBA .

OBJECTIVEIn contrast to severe aplastic anemia (SAA), the appropriate management of patients with moderate aplastic anemia (MAA) is unclear. Recently, it was reported that when childhood MAA was treated with supportive care alone, 2/3 of patients progressed to SAA, and therefore patients with MAA should be treated with immunosuppressive (IS) therapy in time. The present study aimed to review the natural history, the rate of progression to SAA and outcome of children with MAA seen at our institution over the past 12 years and to explore the relationship between the effectiveness of IS therapy and the immune mediated pathological mechanism.

METHODSSeventy-one MAA patients were included in this study. At the first stage, thirty-six children with MAA were given IS therapy (IS group, antithymocyte globulin, ATG or cyclosporin-A, CSA). The therapeutic effects were evaluated and compared with those of 35 children with MAA who received the treatment of supportive care alone (androgens, control group). At the second stage, the patients with MAA progressed to SAA were given combined immunosuppressive (CIS) therapy (CIS group, a combination of ATG, CSA and high-dose immunoglobulin). Peripheral blood lymphocyte subsets levels were measured with a flow cytometer.

RESULTSAt the first stage, in the IS group, the percentage of overall and complete responders was 83.3% and 69.4%, respectively, which was significantly higher than that of the control group (34.3% and 17.1%). Twenty-three patients with MAA progressed to SAA. In the control group, 18 patients with MAA progressed to SAA. In the IS group, five patients with MAA progressed to SAA. The 17 patients with MAA who progressed to SAA were given combined immunosuppressive therapy. The percentage of overall and complete responders was 70.6% and 41.2%, respectively. The level of CD4(+), NK cell ratio decreased but the level of CD8(+) cell increased in MAA children before the treatment. The level of NK and CD4(+) cell was significantly higher in the IS group with the treatment than in the control group.

CONCLUSIONWhen childhood MAA is treated with supportive care alone, more than 50% of patients may progress to SAA. Immune mediated pathological mechanism of MAA might be the base of IS therapy. IS therapy is effective and safe for childhood MAA.CIS therapy given to patients with MAA that was progressed to SAA may also be effective.

Adolescent ; Anemia, Aplastic ; therapy ; Child ; Child, Preschool ; Female ; Humans ; Immunosuppression ; Immunosuppressive Agents ; therapeutic use ; Infant ; Male ; Treatment Outcome

To determine the optimal condition of pollen germination. The pollen of Prunella vulgaris was cultured in vitro. Pollen germination rates were recorded using 10% H3BO4, 30% Ca(NO3)2, 20% MgSO4 and 10% KNO3 as the basic mineral medium with PEG of different molecular weight, sucrose of various density and multiple pH value. The rates were also measured under different cultivation temperature and pollen acquisition time. The optimal condition of pollen germination is 10% H3 BO4, 30% Ca(NO3)2, 20% MgSO4, 10% KNO3, and 25% PEG-4000 as the medium, with pH about 6. 5 and pollen acquired at the beginning of blossom.
Flowers ; physiology ; Pollen ; physiology ; Prunella ; physiology

OBJECTIVETo study the progression of myopia in school-age children over the past 12 years and factors influencing myopia progression.

METHODSA total of 4569 cases of 5 to 12-year-old children who had refractive examinations in the Third Xiangya Hospital, Central South University between January 2000 and December 2011 were enrolled in this study. The children had no family history of congenital high myopia or other eye diseases. Myopia progression was evaluated when the children were re-examined. The refractive state of each child was measured with cyclopiegic retinoscopy.

RESULTSThe mean spherical equivalent (SE) myopia was-2.0±1.7 D between January 2000 and December 2011. There was no statistical difference in yearly myopia progression between different years. The average age of the myopic children decreased from 10.1 in 2000 to 8.9 years old in 2011 (P<0.05). Mean myopia progression was -0.6±0.7 D per year from 2000 to 2011. Myopia progression reduced gradually in 5 to 8-year-olds (P<0.05), however, it accelerated between ages 9 and 11 years. Myopia progression in 10- and 11-year-olds was significantly greater than in 7- and 8-year-olds (P<0.01). The multiple linear regression analysis demonstrated that age and baseline myopic refraction were positively related to myopia progression.

CONCLUSIONSThere was no obvious change in the yearly myopia progression of the children over the past 12 years. The mean age of myopia occurrence became younger with time. More preventive measures are needed to ward off high myopia in children with moderate myopia, especially those aged over 10 years.

Adolescent ; Child ; Child, Preschool ; Disease Progression ; Female ; Humans ; Linear Models ; Male ; Myopia ; etiology ; Retrospective Studies

Objective: To investigate the correlation between body composition and eating habits among medical students, and to provide evidence for health promotion. Methods: In December 2021, stratified cluster random sampling method was used to conduct a questionnaire survey and body composition assessment among 445 students in grade one to grade four in Jining Medical University. Results: There were 152 girls (53.3%) and 45 boys (28.1%) with low skeletal muscle mass. Totally 167 students ( 37.5% ) had lower muscle mass, including 115 females (40.4%) and 49 males (30.6%). High body fat percentage was found in 259 (58.2%) students, including 179 females (62.8%) and 80 males (50.0%). There were 192 students (43.1%) with abnormal waist to hip ratio, with 139 females (48.8%) and 53 males (33.1%). In addition, emotional eating score of female students was significantly higher than that of male students(6.85±2.24, 6.11±2.69, t =2.96, P <0.05). Cognitive restricted eating was positively correlated with skeletal muscle mass and musde mass( r=0.13, 0.13, P <0.05). Emotional eating was positively correlated with body fat percentage, body fat and waist hip ratio( r =0.20, 0.20, 0.16, P <0.05). Unrestricted eating was positively correlated with body fat percentage, body fat and waist hip ratio( r =0.15, 0.18, 0.15, P <0.05). Multiple linear regression analysis showed that gender, family residence, physical activity and cognitive eating were associated with skeletal muscle mass and muscle mass of medical students( P <0.05). Conclusion With low skeletal muscle mass, low muscle mass, body fat percentage and waist and hip high ratio, reasonable eating habits combined with resistance exercise should be adopted to improve their physical health.

Long chain non coding RNA (LncRNA) is widely involved in various biological processes such as intracellular chromatin modification, transcriptional regulation, nuclear transport, and protein function regulation, and is closely related to various key physiological functions such as immunity and metabolism in the body. NEAT1 (nuclear parapackle assembly transcript 1) is a newly discovered LncRNA, which is an important component of the nuclear substructural paraplaques. It has been proven to regulate downstream protein expression by binding to various miRNAs, thereby regulating the expression of inflammatory factors, epithelial mesenchymal transition, autophagy, apoptosis, proliferation, migration, and other biological processes, Its abnormal expression plays an important role in the pathogenesis of lung diseases such as asthma, chronic obstructive pulmonary disease, pneumonia, pulmonary fibrosis, and lung cancer, and is closely related to the prognosis of non-small cell lung cancer and the sensitivity of anti-tumor drugs. It is expected to become a new biological marker and therapeutic intervention target. This article mainly reviews the latest research progress on the role of NEAT1 in lung diseases.