Objective To explore the changes of the peak pressure of tympanogrom in the first year before and after radiotherapy for Nasopharyngeal Carcinoma (NPC) and observe its effect to audition.Methods Acoustic immittance and audiometry were used to detect 64 ears of NPC patients at regular intervals (before, during,at the end of rediotherapy and 6,12 months after radiotherapy). The data were collected and analyzed with statistic methods. Results There were 9 ears with secretory otitis media after radiotherapy. The peak pressure of tympanogrom of other 55 ears was negative at the beginning of radiation, reached highest at the end of radiotherapy,the average was -30(-100, 5.0) daPa.Compared with the peak pressure of tympanogrom before radiation, there was significant statistic difference ( P =0.001). The peak pressure reached to the level of pre-radiation 12 months after radiation, 5.0(-2.5,10.0) daPa. The 2.0 kHz audiometric threshold of bone conduction was 21.4?5.7 dB in 55 ears, compared with the audiometric threshold before radiation, there was evident statistic difference (P

ObjectiveTo explore the relationships among psychological capital,social support and mental health of medical staffs.MethodsAccording to convenience sampling principle,101 medical staffs from one three-grade class A hospital in Hebei participated in the study.They were investigated with questionnaires such as Psychological Capital Questionnaire ( PCQ-24),Social Support Rating Scale (SSRS) and Symptom Checklist 90(SCL-90).Results①The scores of self-efficacy,hope,resilience and optimism were(3.73 ±0.58 ),(3.59 ±0.60),(3.81±0.49),(3.70 ± 0.32),all of which are higher than middle points.There were statistic difference in four subscales of psychological capital(P ＜ 0.05 ).Compared with nurses,doctors scored higher in self-efficacy ( (3.92 ±0.66),(3.59 ±0.48) ).The difference was significant(P＜0.05).Among different educational background there were also statistic differences(P ＜ 0.05 ).②Psychological capital was negatively related to the whole factors of SCL-90(P＜0.0l,or P ＜ 0.05 ),however,social support was negatively related to only part of it(P ＜0.05 ).③Psychological capital could negatively predict mental health(P ＜ 0.01 or P ＜ 0.05 ).ConclusionThis research outlines a strong relationship between psychological capital and mental health of medical staffs.But social support has no a significant impact on mental health.

Objective To investigate the relationships between the severity of non-alcoholic fatty liver disease (NAFLD) and metabolic syndrome (MS).Methods One hundred and twenty-seven cases of NAFLD patients were selected from March 2011 to August 2012 in the First Hospital Affiliated to Fujian Medical University,of them,61 patients with mild NAFLD,45 patients with moderate and 21 patients with severe.And 21 cases without NAFLD were selected as control group during the same hospitalized period.All objects received the measures of height,body weight,waist circumference (WC),blood pressure; Liver ultrasonic examination,the examination of fasting plasma glucose,blood fat and hepatic function detections were also handed by special people.Results The proportion of overweight in the control group and the three NAFLD subgroups were 57.1％ (12/21),88.5％ (54/61),95.6％ (43/45) and 100％ (21/21) respectively (x2 =18.376,P ＜0.001) ;The proportion of the obesity in control group and the three NAFLD subgroups were 19.0％ (4/21),44.3％ (27/61),64.4％ (29/45) and 71.4％ (15/21) respectively(x2 =16.440,P =0.001).The proportion of the metabolic syndrome of the control group and the three NAFLD subgroups were 14.3％ (3/21),45.9％(28/61),71.1％ (32/45) and 71.4％ (15/21) respectively (x2 =22.637,P ＜ 0.05).All three subgroups of NAFLD were higher than the control group (x2 =6.641,P ＜ 0.05 ; x2 =18.562,P ＜ 0.05 ; x2 =14.000,P ＜0.05,respectively).The severity of NAFLD was positively correlated with BMI,WC,TG,FBG,SBP,and DBP (r =0.467,0.503,0.386,0.369,0.279,0.295,P ＜ 0.01),and negatively correlated with HDL-C (r =-0.209,P ＜0.05).Conclusion The severity of NAFLD had significant correlations with metabolic syndrome's components.

Objective To investigate relationship between obstructive sleep apnea hypoventilation syndrome(OSAHS) and hypertension.Methods Questionnaire survey was conducted among 1573 local permanent residents in Guangzhou during March and June 2006 to understand prevalence of hypertension and snoring,and polysomnography monitoring was performed for 347 of them with moderate and severe snoring to estimate prevalence of OSAHS.Risk factors for hypertension was screened with multivariate logistic regression analysis.Results In total,1547 copies of valid questionnaires were collected,and 184 cases (11.9%) of hypertension were found with a prevalence of 10Department of Endocrinology,Shanxi Provincial People's Hospital,Taiyuan 030012,China 0%,49 of diabetes with a prevalence of 2.7%,and 212 of dyslipidemia with a prevalence of 10.4%.Prevalence of OSAHS was found in 34 of them (2.2% ) with Epworth sleepiness scale (ESS) score equal to or greater than nine.Prevalence of hypertension in OSAHS group was 32.5%,much higher than that in non-snoring group (8.3% ) and snoring group ( 17.1% ).Results of logistic regression analysis showed that age,gender,OSAHS,diabetes and dyslipidemia all were high-risk factors for hypertension,with OSAHS ranking the third.Conclusion OSAHS is one of high-risk factors for hypertension.

0.05). CONCLUSION Obesity was an influential factor of snoring. The PS and OSAHS have the same effect on children growth and their clinical features.

BACKGROUND: Auditory steady-state responses (ASSR) is an objective method of hearing examination in clinic in recent years. ASSR has the frequency specificity as compared with previous auditory brainstem responses (ABR).OBJECTIVE: To investigate the accuracy of ASSR in objective hearing assessment.DESIGN: A case-control observation.SETTING: Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University.PARTICIPANTS: The subjects in the normal hearing group were the 21 undergraduates (42 ears) were enrolled, they all had not any symptoms of ear disease, without history of noise exposure and disease of vestibule system, and they were normal in otoscopy. The outpatients and inpatients with neurosensory deafness were selected from the Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University. All the children cases worn hearing aids, and had the speech ability, and cooperated in the examination. The main types included 6 ears of sudden deafness,8 ears of presbycusis, and 20 ears of neurosensory deafness due to other unknown causes. Central lesions were excluded by MR examination, and all the patients agreed with the enrollment. The results of pure-tone audiometry were all flat or descending audiogram. According to the severity of hearing damage, the patients were divided into mild deafness group (13ears), moderate deafness group (9 ears) and moderate-to-severe deafness group (12 ears).METHODS: ① The pure-tone audiometry was performed at the frequencies of 0.125-8 000 Hz in a sound insulation room. The auditory threshold grades of the subjects with normal hearing all accorded with the standards of GB-7583-87 expected value distribution. The average value of air-conduction auditory thresholds of pure-tone audiometry at the frequencies of 0.5, 1, 2 and 4 kHz was calculated. ② ASSR measurement was performed with the synchronous stimulation pattern in a sound and electromagnetic shielding room, including 8 points for both ears of the same stimulation intensity and the carrier frequency tones of 0.5, 1, 2 and 4 kHz respectively.③ ABR examination was performed by click sounds with sparse waves in a sound and electromagnetic shielding room, and insert earphones were used.The threshold results were judged according to the minimal stimulation sound intensity of the distinguishable Ⅴ wave. ③ The results of pure-tone audiometry were compared with those of ABR examination, and the results of ASSR measurement in different hearing groups were processed with analysis of variance, multi-classification discrimination based Bayes standard and q test.MAIN OUTCOME MEASURES: The thresholds of pure-tone audiometry, ASSR measurement and ABR examination, and the correct rate analyzed by the multi-classification discrimination based Bayes standard were mainly observed.RESULTS: The indexes of the 42 ears in the normal hearing group, 13, 9 and 12 ears in the mild, moderate and moderate-to-severe deafness groups were all involved in the analysis of results. ① The ABR values were accorded with the actual hearing levels, and the closest to the ASSR thresholds at 1-2 kHz; ASSR reflected induction rates at different frequencies were gradually decreased with the aggravation of hearing damage, and that at each frequency varied with the changes of hearing level, the induction rates of ASSR responses were all 100% for the subjects with normal hearing and patients with mild deafness, but those for the patients with moderate and moderate-to-severe deafness were decreased (0.5 kHz: 77.8%,92.8%; 4 kHz: 88.9%, 85.7%). At different frequencies, the ASSR thresholds in the moderate-to-severe deafness group were significantly higher than those in the normal hearing group (P ＜ 0.05). The ASSR thresholds at 0.5 and 4 kHz in the moderate-to-severe deafness group were significantly higher than those in the mild deafness group (P ＜ 0.05). The ASSR threshold at 2 kHz in the mild deafness group was significantly higher than that in the normal hearing group (P ＜ 0.05). The ASSR thresholds at 4 kHz in the everedeafness group were significantly higher than those in the normal hearing group and mild deafness group. ② The incorrect discriminations of actual pure-tone audiometry were analyzed with the interactive clustering discriminant analysis of ASSR measurement and actual pure-tone audiometry, and the results showed that the correct rate of discrimination was 100% in the normal hearing group; Only 1 of the 12 cases in the mild deafness group was incorrectly judged, and the correct rate was 92%; Only 1 of the 19 cases in the moderate deafness group was incorrectly judged, and the correct rate was 89%; the correct rate in the moderateto-severe deafness group was 83%.CONCLUSION: The results of ASSR measurement can detect the incorrect discrimination of objective hearing condition by taking the results of pure-tone audiometry as the standards. ASSR has an acceptable accuracy for deafness higher than mild level in estimating objective hearing, and it has a better prospect of application in practice.

Objective To investigate the relationship between waist-to-height ratio and metabolic syndrome,in order to identify the optimal cut-off point of waist-to-height ratio for predicting metabolic syndrome.Methods In this cross-sectional study,we recruited 343 people who received physical examination in First Hospital of Quanzhou between January 2012 and June 2014,and collected the information of their waist circumference,height,weight,blood pressure,laboratory test results (including fasting blood glucose,2-hour glucose after oral glucose tolerance test,triglyceride,high-density lipoprotein cholesterol) and visceral fat area assessed by computed tomography.Then a receiver operating characteristic (ROC) curve analysis was used to estimate the optimal cut-off points of waist-to-height ratio for the prediction of metabolic syndrome.Results Among the 343 people,there were 195 metabolic syndrome patients,the prevalence rate was 56.8％,which was 70.2％ in men (127/181) and 42.0％ in women (68/162).In ROC curve analysis,the area under the curve of waist-to-height ratio for the prediction of metabolic syndrome was 0.664 for men,and 0.673 for women.The optimal cut-off point of waist-to-height ratio for predicting metabolic syndrome was 0.543 0 (sensitivity 88.2％,specificity 44.4％) for men,and 0.568 3 (sensitivity 86.8％,specificity 46.8％).Conclusion The optimal cut-off point of waist-to-height ratio for predicting metabolic syndrome in Quanzhou population is 0.543 0 for men and 0.568 3 for women.

This study was aimed to investigate the effects of high-dose strictosamide injection on cardiovascular sys-tem of anesthetized beagle dogs and to examine the inhibition of strictosamide on ion channels in vitro. Indexes such as changes of systolic blood pressure (Sys), diastolic blood pressure (Dia), mean blood pressure (MBP), heart rate (HR), PR, QRS, QT, QTcb and QTcv at different time points before and after strictosamide injection in dogs were monitored by the polygraph system. The inhibition of strictosamide at different concentrations on hERG potassium channel in CHO-hERG cells and Nav1.5 sodium channel in HEK-293-Nav1.5 cells were measured by whole-cell patch-clamp method. The results showed that compared with the blank control group, Sys, Dia, MBP and HR were obviously declined 15 min after medication in the strictosamide (60, 18 mg·kg-1) group and the vehicle-control group (containing tween-80) (P < 0.05). After medication, all indexes were recovered. Compared to the vehicle-control group, there were no significant differences at different time points in each medication groups. Compared with the blank control group and before medication, the QT interval, QTcb and QTcv were significantly prolonged 15 min af-ter medication in the strictosamide (60, 18, 6 mg·kg-1) group and the vehicle-control group (P< 0.05). When medi-cation stopped, indexes were recovered at certain level. Compared with the vehicle-control group, there were no sig-nificant differences of QT interval, QTcb and QTcv of each medication group at different time points (P> 0.05). The inhibition of strictosamide on hERG potassium channel and Nav1.5 sodium channel were weak with IC50 values of 560.8 μM and > 900 μM, respectively, which were far greater than the positive controls. It was concluded that sin-gle, high-dose intravenous injection of strictosamide may lead to a lower blood pressure, a slower heart rate and a prolongation on the QT interval in beagle dogs, which returned to basal levels when medication stopped. It was spec-ulated that the reduction of blood pressure and the slowing of heart rate were related to tween-80 contained in the vehicle control group. No significant inhibitory effects were detected on hERG potassium channel and Nav1.5 sodium channel in vitro, which suggested that other mechanisms may be involved in strictosamide-induced QT interval pro-longation in animals.

Objective:To investigate the relationship between Ku70 mRNA expression in non-neoplasm,in normal appearing pulmonary tissues,and in lung cancer tissue of pre-or post-chemotherapy and drug resistance.Methods:Ku70 mRNA in the lung tissues was measured by reverse transcription polymerase chain reaction (RT-PCR).The samples were extracted form 26 non-neoplasm, normal appearing pulmonary tissues and 56 lung cancer tissues.Results:Non-neoplasm, normal appearing pulmonary tissue group expressed Ku70 mRNA lower than lung cancer tissue group(P

Objective:To study the different Ku80 mRNA expression in normal lung tissue group, lung cancer group(non small cell lung cancer) without chemotherapy, lung cancer group with multiple chemotherapy(n≥2),to evaluate the relationship of tumor drug resistance with Ku80 mRNA expression in human lung cancer.Methods:The lung tissue gene level of Ku80 mRNA was measured by reverse transcription polymerase chain reaction(RT-PCR) in 25 normal lung tissues, 51 lung cancer tissue,taking ?-actin as inner reference.The data were analyzed by SPSS software.Results:Ku80 mRNA expression in normal lung tissue compared to lung cancer group without chemotherapy, lung cancer group with multiple chemotherapy(n≥2) had statistic significant meaning,respectively P