Association of maternal emotional symptoms and childhood adverse experiences with children s emotional and behavioral problems / 中国学校卫生

Objective@#To explore the mediating effect of maternal emotional symptoms on maternal adverse experiences and children s emotional behavior problems, so as to provide a scientific basis for family intervention of children with emotional behavior problems.@*Methods@#A multi stage sampling method was used to select 12 kindergartens in 3 districts and counties of Wuhu City. The questionnaire star method was used to investigate the love of homosexuality in families and children, children s emotional behavior development questionnaire, mother s life experience questionnaire, mother s emotional symptoms questionnaire, etc. SPSS 23.0 software was used for general descriptive analysis and Spearman correlation analysis. GLS method was used to evaluate the mediating effect of maternal mental health level between maternal adverse experiences and childrens emotional and behavioral problems.@*Results@#The difficulty factor score in the Strength and Difficulty Questionnaire (SDQ) of preschool children in Wuhu City was (10.08±4.05) points, the abnormal detection rate of the total difficulty score was 6.6%, and the abnormal detection rate of prosocial behavior was 16.5%, the total score of mother s adverse experience was positively correlated with the total score of mother s SDQ difficulties and the scores of mother s depression, anxiety and stress symptoms. The total score of children s SDQ difficulties was positively correlated with the scores of mother s depression, anxiety and stress emotions( r=0.17-0.71, P < 0.01). The results of mediating effect analysis showed that the intermediate effect coefficients of maternal depression, anxiety, stress and other emotions between the total score of maternal adverse experience and the total score of children s SDQ difficulties were statistically significant( P <0.05), and the mediating effect accounted for 22.6%, 15.2% and 17.1% of the total effect, respectively.@*Conclusion@#The relationship between maternal adverse childhood experiences and children s emotional behavior problems was influenced by maternal emotional symptoms. Attention to mothers early life experience and mental health is beneficial to the prevention and control of children s emotional and behavioral problems.

Association between sleep disorders and behavioral problems in preschool children / 中国学校卫生

Objective@#To investigate the association between sleep with emotional and behavioral problems of preschool children in Wuhu City.@*Methods@#A cluster sampling survey was conducted among senior class of 12 kindergartens in Wuhu City, a total of 1 158 preschool children were investigated. The self designed questionnaire was used to investigate the general situation and sleep characteristics. Strengths and Difficulties Questionnaire (SDQ) and Sleeping Quality Questionnaire for Children Aged 2-5 years were used to investigate their emotional behavior and sleep disorders.@*Results@#About 44.21% of respondents had emotional and behavioral problems, among which peer interaction was the most prominent. There were gender differences in sleeping alone and the need of comforters for sleep. 41.97% of preschool children detected at least one type of sleep disorder, and the detection rate of disturbed sleep was 33.83% in girls, which was higher than that of boys(25.97%). Abnormal sleep and disturbed sleep increased the risk of emotional and behavioral problems in preschool girls( OR=2.33, 95%CI =1.25-4.34; OR=4.92, 95%CI =1.28-19.00), adequate sleep reduced the risk( OR=0.46, 95%CI =0.27-0.77). Abnormal sleep increased the risk of boys emotional and behavioral abnormalities( OR=1.86, 95%CI =1.08-3.19), while sleeping alone reduced the risk( OR=0.59, 95%CI =0.37-0.95).@*Conclusion@#Sleep behaviors are associated with the occurrence of emotional and behavioral problems in preschool children in a sex specific manner.

Quasispecies investigation on swine hepatitis E viruses / 病毒学报

The objective of current study was to investigate the quasispecies of hepatitis E virus in swine. The partial ORF2 region of HEV envelope gene from four swine HEV strains was amplified by RT-nested polymerase chain reaction (RT-nPCR). After cloning and transformation of PCR products, 20 positive clones of each HEV isolate were subject to sequencing and DNA analysis. The homology among the different clones of each isolates was 96.8%-99.7%, 98.8%-99.7%, 98.8%-99.7% and 100%, respectively, while there was 96.8%-100% sequence identity at the nucleotide level compared with HEV strains isolated in Shanghai (SAAS-JDY5). This study confirmed that there existed quasispecies of HEV in swine.

Genomic instability in nasopharyngeal carcinoma / 中南大学学报(医学版)

OBJECTIVE@#To evaluate the effect of genomic instability on prognostics in nasopharyngeal carcinoma.@*METHODS@#Genomic instability was assessed by inter-simple sequence repeats polymerase chain reaction (inter-SSR PCR) in 38 patients with nasopharyngeal carcinoma. Characterization and verification of band alterations shared in different tumors were carried out by sequencing and nest PCR.@*RESULTS@#Thirty-one (81.6%) of the 38 patients showed genomic altercations, and genomic instability index ranged 0 to 16.2 percent. A gain-based genomic damage shared in 6 tumors was identified on chromosome 6q27. Genomic alteration was significantly more in patients less than 5-year survival than those with more than 5-year survival (P<0.05).@*CONCLUSION@#Genomic instability can be an early event marker in carcinogenesis of nasopharyngeal carcinoma. Aggravation of genomic alterations is a poor prognosis for cancer recovery.