Job burnout and its correlation with self-efficacy and social support among policemen serving in female drug rehabilitation center / 中国职业医学

OBJECTIVE: To investigate the incidence of job burnout in policemen in female drug rehabilitation center and its correlation with self-efficacy and social support. METHODS: The General Condition Inventory,Maslach Burnout Inventory General Survey,Perceived Social Support Scale and General Self-Efficacy Scale were used to evaluate the mental health status of 254 policemen of female drug rehabilitation center. RESULTS: The scores of policewomen in emotional exhaustion dimension were higher than those of policemen( P < 0. 01). The policemen with length of service ≤15 years had the lower scores in emotional exhaustion and depersonalisation dimension than those with length of service > 15 years( P < 0. 05).The scores of ordinary policemen in emotional exhaustion dimension were hight than those of vice-officer level policemen( P < 0. 01). Policemen who were in contact with patients with acquired immune deficiency syndrome had higher scores in emotional exhaustion dimension than those who were not in contact with patients( P < 0. 05). Partial correlation analysis showed that the scores of 3 dimensions of job burnout( emotional exhaustion,depersonalization and lower sense of personal achievement) were negatively correlated with general self-efficacy( P < 0. 05). Emotional exhaustion was negatively correlated with social support and other related dimension scores( P < 0. 01). The depersonalization dimension score was negatively correlated with total score of social support,and the dimension scores of family support,friend support and other support( P < 0. 01). CONCLUSION: The job burnout of policemen working in female drug rehabilitation center are different by gender,length of service,position and different types of job. The correlation exists among job burnout,self-efficacy and social support in a certain degree.

Mannan-Binding Lectin Inhibits Candida Albicans-Induced DC Maturation and Cytokine Secretion / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the effects of mannan-binding lectin (MBL) on the maturation and cytokine secretion of human dendritic cells (DC) induced by Candida albicans (C. albicans).</p><p><b>METHODS</b>The plastic-adherent mononuclear cells were prepared from the blood of healthy adult volunteers. The human peripheral blood mononuclear cells-derived dendritic cells (MNC-DC) were induced by 5-day-culture in medium supplemented with rhGM-CSF and rhIL-4, and then cultured for 2 days in presence or absence of C. albicans at varying concentration of human MBL ranging from 1 to 20 mg/L. DC's shape and characters were observed under inverted microscopy, the expression of CD83 and CD86 on DC was analyzed by FACS. The levels of TNF-α and IL-6 were detected by ELISA. FACS also was used to investigate the interaction of MBL with immature DC(imDC) and C. albicans. Western blot was used to detect C. albicans-induced IκBα phosphorylation and p65/NF-κB translocation in DC.</p><p><b>RESULTS</b>MBL at higher concentrations (10-20 mg/L) down-regulated the expression of CD83 and CD86 on the monocyte-derived dentritic cells(MoDC) induced by C. albicans, and inhibited the production of TNF-α and IL-6 induced by C. albicans. FACS showed that MBL could not only bind to C. albicans but also bind to imDCs in a Ca2+-dependent manner. Western blot showed that MBL could decrease the phosphorylation of IκBα and the nuclear translocation of p65/ NF-κB.</p><p><b>CONCLUSION</b>MBL may inhibit TNF-α and IL-6 production induced by C. albicans in DC through NF-κB signaling pathways, suggesting that MBL can play some roles in the regulation of C. albicans-induced immune response.</p>

Association between polymorphism of IRF6 rs2235371 locus and nonsyndromic cleft lip with or without cleft palate / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To assess the association between polymorphism of interferon regulatory factor 6 (IRF6) gene rs2235371 locus and nonsyndromic cleft lip with or without cleft palate in Chinese population.</p><p><b>METHODS</b>Blood samples from 106 patients and their parents and 129 controls and their parents were collected. The polymorphism of IRF6 rs2235371 locus was determined with PCR-restriction fragment length polymorphism (PCR-RFLP) method. Case-control analysis, transmission disequilibrium test(TDT), haplotype-based haplotype relative risk analysis (HHRR) and family-based association test (FBAT) were carried out.</p><p><b>RESULTS</b>By case-control analysis, no significant difference was found in the frequencies of GG, GA and AA genotypes of rs2235371 locus between the patient group and control group (P> 0.05), but there was a significant difference in allelic frequencies (P< 0.05). There was also a significant difference in genotype and gene frequencies of rs2235371 variant between family members from cleft lip only group and control group. However, in cleft lip with cleft palate group, no such difference was observed. TDT analysis suggested a linkage in the presence of disequilibrium (chi-square=5.56, P=0.024). Results of HHRR analysis (chi-square=5.115, P=0.024) and FBAT (Z=2.218, P=0.027) also indicated an association between IRF6 rs2235371 variant and the risk of NSCL with or without cleft palate.</p><p><b>CONCLUSION</b>Genetic polymorphism of IRF6 gene rs2235371 locus is associated with NSCL with or without cleft palate.</p>