Occupational chronic n-hexane poisoning incidents have been effectively curtailed in traditional printing and footwear industries, but its hazards are emerging in new industries. In recent years, two cluster incidents involving eight patients with occupational chronic n-hexane poisoning had occurred in Longgang District, Shenzhen City. Unlike the cleaning processes of electronic components in the electronics industry, these two incidents occurred during cleaning operations of non-electronic products. The rapid on-site detection tubes indicated the presence of n-hexane in the organic solvents used at the work site, and subsequent analysis of volatile components of the organic solvents further confirmed the involvement of n-hexane. Although the n-hexane exposure concentration of short term in the workplace air samples were below its occupational exposure limit, all eight cases were diagnosed as occupational chronic n-hexane poisoning, based on occupational exposure history, clinical manifestations, field investigations, and laboratory test results. These two poisoning incidents highlight that in air-conditioned or enclosed workshops with substandard occupational disease prevention facilities, the use of n-hexane containing organic solvents may result in occupational chronic n-hexane poisoning, even when the air monitoring results do not exceed the occupational exposure limits.

Objective The resting-state functional magnetic resonance imaging (rs-fMRI) method was used to observe brain activity and its functional connection upon electroacupuncture stimulation at bilateral uterine acupoints (EX-CA1), as well as to investigate the mechanism of acupuncture in the treatment of gynecological diseases. Methods Twenty-two healthy female subjects were stimulated by electroacupuncture at bilateral uterine acupoints; rs-fMRI data of the brain were acquired and standardized. Degree centrality (DC), amplitude of low-frequency fluctuation (ALFF), and regional homogeneity (ReHo) were used to analyze local spontaneous brain activity via acupuncture. An independent component analysis was used to evaluate the functional connectivity of the resting brain networks after acupuncture. Results Analytical results showed that the neural activity intensity of the precuneus lobe, orbitofrontal cortex, lingual gyrus, amygdala, and posterior central gyrus decreased after acupuncture (voxel P < 0.001, cluster P < 0.05). Functional connectivity analysis revealed weakened auditory and right frontal-parietal networks (voxel P < 0.001, cluster P < 0.05), enhanced visual network (voxel P < 0.001, cluster P < 0.05), and synergistic auditory network and hypothalamic-pituitary system. Conclusion Significant differences in neural activity and functional connectivity in specific brain regions were observed after acupuncture intervention at uterine acupoints; the hypothalamic-pituitary system also showed various active states in different brain regions. It is speculated that the effective mechanism of acupuncture at uterine acupoints is related to the regulation of reproductive hormones, emotional changes, and somatic sensations. Therefore, the methods used in this study could clarify the neural mechanism of uterine-point acupuncture in the treatment of gynecological diseases and may serve as a reference for other studies pertaining to acupuncture.

Objective To analyze the genotypes distribution and clinical significance of human papillomavir-us(HPV) infection in atypical squamous cells of undetermined significance (ASC-US) ,low squamous intraepi-thelial lesion (LSIL) and high squamous intraepithelial lesion (HSIL) of uterine cervix ,meanwhile to conduct the cervical histopathological diagnostic analysis in the patients with ASC-US、LSIL and HSIL .Methods The gene amplification technique (PCR) combined with gene-chips technology were adopted to conduct the 23 kinds of HPV genotype detection on 236 cases of cervical ASC-US ,36 cases of cervical LSIL and 61 cases of cervical HSIL specimens .All cases of ASC-US ,LSIL and HSIL were performed the cervical biopsy his-topathological diagnosis .And then the subjects related data were analyzed .Results Among 236 cases of cervi-cal ASC-US specimens ,139 cases of HPV infection were detected with the total HPV infection rate 58 .90％(139/236) ,in which the single genotypes infection rate was 38 .14％ (90/236)and the multiple genotypes infec-tion rate was 20 .76％ (49/236);26 cases of HPV infection were detected from 36 cases of cervical LSIL speci-mens with the total HPV infection rate of 72 .22％ (26/36) ,in which the single genotypes infection rate was 52 .78％ (19/36) and the multiple genotypes infection rate was 19 .44％ (7/36);61 cases of HPV infection were detected from 58 cases of cervical HSIL specimens with the total HPV infection rate of 95 .08％ (58/61) , in which the single genotypes infection rate was 68 .85％ (42/61)and the multiple genotypes infection rate was 26 .23％ (16/61) .The total infection rates had statistically significantly differences among the cervical ASC-US group ,LSIL group and HSIL group (P<0 .05) .Conclusion HPV16 ,52 ,58 are the main types in the patients with cervical ASC-US ,LSIL and HSIL .The gene-chip technology can be used in the HPV genotypes detection of cervical cells ,which has an important clinical significance for further distribution management on ASC-US patients and should draw great attention of gynecologist .

Objective To develop the Chinese version of modified body image scale(MBIS) questionnaires, and to validate them in Chinese population. Methods The original English MBIS questionnaire was translated into Chinese, following the WHO cross-cultural adaptation of health-related quality of life measures. The reliability and validity of the Chinese version of MBIS questionnaires were evaluated in Chinese population, MRKH syndrome patients. Results Totally 50 patients with MRKH syndrome completed the MBIS and short-form 12-item health survey(SF-12)questionnaires.The Cronbach′s alpha of MBIS was 0.741,intraclass correlation coefficients were 0.472-0.815(P<0.01).MBIS scores were positively correlated with SF-12 scores(Spearman correlation coefficient was-0.409, P<0.01). Factor analysis showed that MBIS had one common factor. Conclusion Chinese version of MBIS has high reliability and validity in Chinese population,therefore is suitable for clinic and research.

Objective To observe the clinical effect of temozolomide combined with radiotherapy in the treatment of malignant gliomas. Methods A total of 64 patients with pathologically confirmed glioblastoma received radiotherapy combined with chemotherapy in our hospital from January 2008 to January 2014, radiotherapy synchronized with TMZ chemotherapy were used in 39 patients (synchronized group) and radiotherapy sequential with TMZ chemotherapy in 25 patients (sequential group).1 year and 3 year survival rates, response rate and drug safety were compared between the two groups. Results The patients were followed up for 6 months to 3 years, the synchronous group of patients 1 years and 3 years survival rates (74.4%, 38.5%) were higher than the sequential group(64.0%, 28.0%) (P<0.05), objective re-sponse rate of two groups were 64.1%and 44.0%, the difference was statistically significant(P<0.05), gastrointestinal re-action rates of two groups were 23.1% and 20.0%, the difference was not statistically significant (P>0.05). Adverse re-actions were statistically significant (P<0.05). Conclusion The effect of radiotherapy synchronized combined with TMZ chemotherapy is better than radiotherapy sequential with TMZ chemotherapy for glioblastoma, it is still the first choice for the treatment of glioblastoma although the clinical manifestations of toxicity increased than the sequential group.

Objective To investigate the effect of neuronavigation assisted microscopic transsphenoidal resection of non-invasived pituitary tumor. Methods Retrospective analysis of clinical data of 72 cases of transsphenoidal operation for non-invasived pituitary tumor from January 2012 to January 2014. Results All patients were successfully completed the surgery, total resection in 65 cases, subtotal resection in 4 cases, partial resection in 3 cases, 7 cases in subtotal resection were treated with gamma knife radiotherapy after operation, hyperprolactin were given bromocriptine treatment after surgery. Patients were followed up for 6 months to 3 years, the remission rate was 89.2% in the postoperative headache, visual disorder remission rate 68.6%, endocrine disorders and the remission rate was 57.6%. 5 cases of post-operative cerebrospinal fluid rhinorrhea underwent repair, 8 cases had diabetes insipidus, 1 case of partial resection progressed to suprasellar and parasellar after 1.5 years, underwent craniotomy operation again. Conclusion For non-in-vasived pituitary tumor, microscopic transsphenoidal sugery is safe, convenient, and has no significant difference com-pared with the effect of endoscopic endonasal transsphenoidal approach.

Objective To study reliability and validity of incontinence impact questionnaire short form (IIQ-7) in the Chinese population. Methods IIQ-7 form was translated into Chinese; 74 patients with urinary incontinence completed the IIQ-7 simplified Chinese version and short-form 12-item health survey (SF-12) questionnaires. The urinary incontinence patient also ran a 1 hour pad test. Then, reliability and validity of those forms were analyzed. Results The Cronbach's alpha of IIQ-7 simplified Chinese version was 0. 824 (P <0. 01). The intra-class correlation coefficient of IIQ-7 simplified Chinese version was 0. 749 (P < 0.01) . IIQ-7 simplified Chinese version scores were negatively correlated with SF-12 scores (Spearman correlation coefficient: - 0. 570, P < 0. 01) , IIQ-7 simplified Chinese version scores were positively correlated with 1 hour pad test (Spearman correlation coefficient: 0.461, P < 0. 01) , IIQ-7 simplified Chinese version scores were also positively correlated with the course of disease (Spearman correlation coefficient: 0. 235 , P < 0. 05) . Factor analysis of IIQ-7 simplified Chinese version showed good construct validity. Conclusions The simplified Chinese version of IIQ-7 has higher reliability and validity in the Chinese population. They are highly recommended for clinical treatment and research.