MicroRNAs ( miRNAs ) play important roles in the processes of the occurrence and development of cancers , through regulating tumor related gene expression at post-transcription.It has shown that the expression of miR-214 is aberrant in cervi-cal cancer.Also,miR-214 could affect the proliferation, migration, invasion and apoptosis of tumor cells by targeting various genes . This article focuses on the studies of miR-214 function in cervical cancer , and will provide a novel approach for the clinical diagnosis and the treatment of cervical cancer .

Objective To investigate the sleep quality of teachers from preschool institution and related factors.Methods Totally 220 teachers of various preschool institution in Shandong and Beijing were selected by cluster sampling and surveyed with questionnaire including Pittsburgh sleep quality index (PSQI).Results ①There were 27.7％ of the teachers having sleeping problems.②There was statistical significance by sleep disorder,using of sleep medications,daytime dysfunction,the PSQI scores of groups were significantly different (P ＜0.05).③Age of 36 ～ 40 years old (2.00 ± 0.71),married teachers (1.57 ± 0.72),seniority in 36 ～ 40 years,length of service in 13-17 years (1.75 ± 1.03) and ＞ 18 years (1.76 ± 0.66),form teacher(1.50 ± 0.71),formal staff teachers(1.63 ± 0.71)in sleep disorder were significantly higher than other teachers in their group and the difference was significant (P ＜ 0.05).College degree (0.22 ± 0.68),private kindergarden teachers (0.65 ± 0.90)in using of sleep medications were significantly higher than other teachers in their group,the difference was significant (P ＜ 0.05).formal staff teachers (1.33 ± 0.77) in daytime dysfunction were significantly higher than other teachers in their group and the difference was significant(P＜ 0.05).@The multiple factor logistic regression analysis demonstrated that sleeping quality of preschool institution ’s teachers were associated with having breakfast,regular diet,work breaks,insist on physical excise,Job burnout.Conclusion The sleep disorder is serious among teachers of preschool institution.

OBJECTIVETo assess the association of four single nucleotide polymorphisms (SNPs) (rs12190359C>T, rs562047C>G, rs1008438G>T, and rs1043618G>C) of HSPA1A gene with the development of cervical cancer among ethnic Han Chinese from Yunnan.

METHODSOne hundred and thirty patients with CIN III, 444 patients with cervical cancer, and 548 healthy individuals were recruited, and the genotypes of the above SNPs were determined with a Taqman assay. Haplotypes were constructed, and their association with the development of cervical cancer was analyzed.

RESULTSThe frequencies of G and T alleles of rs1008438G>T were significant different between the CIN III and control groups, as well as between the cancer and control groups (P=0.022 and P=0.030, respectively). There was a significant difference in genotypic frequency of rs1008438G>T between the CIN III and control groups (P=0.047). The allelic and genotypic frequencies of rs12190359C>T, rs562047C>G, and rs1043618G>C did not significantly differ between the CIN III, cervical cancer and control groups (P> 0.05). The frequencies of haplotypes formed by rs562047C>G, rs1008438G>T and rs1043618G>C also did not significantly differ between the CIN III, cancer and control groups (P> 0.05).

CONCLUSIONThe G allele of rs1008438G>T may be a protective factor for cervical cancer among ethnic Han Chinese from Yunnan.

China ; ethnology ; Female ; Genetic Predisposition to Disease ; Genotype ; HSP70 Heat-Shock Proteins ; genetics ; Haplotypes ; Humans ; Polymorphism, Single Nucleotide ; Uterine Cervical Neoplasms ; etiology ; genetics