Objective To understand the current situation of iodine deficiency disorders (IDD),iodine nutritional status and implementation situation of the prevention and control measures before and after the adjustment of edible salt iodine level in Xi'an City,and to provide a basis for scientific prevention and control of IDD.Methods In 2011,seven counties (areas) of Xi'an City were selected,including Lintong,Weiyang,Chang'an,Lantian,Gaoling,Zhouzhi and Huxian,and five subareas were selected according to the five directions as east,west,south,north and centre in each county (area),one township was selected in the centre subarea and two townships were selected in other subareas,four villages were selected in every township,edible salt samples of eight households were selected in every village to detect salt iodine.Six areas of Xi'an City were selected,including Yanta,Beilin,Yanliang,Lianhu,Xincheng and Baqiao,one township was selected according to the five directions as east,west,south,north and centre in each county,four villages were selected in every township,edible salt samples of 15 households were selected in every village to detect salt iodine.One school was respectively selected according to the five directions as east,west,south,north and centre in 13 counties,42 children aged 8-10 were selected in every school to detect goiter.Two schools were selected in Beilin,Lianhu and Xincheng,respectively,30 children aged 8-10 were selected in every school to detect urine iodine.The remaining 10 counties were respectively divided according to the five directions as east,west,south,north and centre,two schools were selected in the centre subarea,30 children aged 8-10 were selected in every school to test urine iodine,one school was selected in other subareas,15 children aged 8-10 were selected in every school to detect urine iodine.In 2015,13 counties were selected,one township was selected according to the five directions as east,west,south,north and centre in each county,four villages were selected in every township,and edible salt samples of 15 households were selected in every village to detect salt iodine.One school was selected in every township,42 children aged 8-10 were selected in every school to detect goiter.Meanwhile,40 children aged 8-10 were selected in every school to detect urine iodine.Results The median of salt iodine was 33.70 mg/kg in 2011,which was higher than that in 2015 (24.96 mg/kg),the difference was statistically significant (Z =31.059,P ＜ 0.05).In 2012 and 2015,the coverage rates of iodized salt were 99.79％ (3 808/3 816) and 99.90％ (3 896/3 900),consumption rates of qualified iodized salt were 99.32％ (3 791/3 816) and 97.64％ (3 808/3 900).The rate of weighted goiter in 2011 was 2.76％,which was higher than that in 2015 (1.17％),the difference was statistically significant (X2 =15.11,P ＜ 0.01).The median of urinary iodine was 292.5 μg/L in 2011,which was higher than that in 2015 (259.0 μg/L),the difference was statistically significant (Z =2.862,P ＜ 0.05).Conclusion The population iodine nutritional status is more than sufficient in Xi'an City after adjustment of edible salt iodine level,there is still a space for lowering the iodine level in edible salt.

To discuss the course of implementing tutorial system as well as the effect on medical students,and to point out that implementing teacher system is a kind of pattern of training innovation type of medical talents.

Objective:To probe essence of TCM syndrome of gastric carcinoma from gene protein expression.Methods:Based on the collected data from pre-operative patients of gastric carcinoma,their TCM syndromes were determined by means of TCM syndrome classification criteria.E-cadherin gene protein expressions in tumor tissue after operation of gastric cancer were detected with EnVision two step immunohistochemical method.Results:The expression rate of E-cadherin was 90% in 100 cases of gastric carcinoma,with significant difference among different syndrome types(P

In order to make good use of laboratory opening,the way,method together with the effect of laboratory opening in our college were analyzed and discussed in this paper. The perfect practice effect shows that laboratory opening plays an important role in cultivation for independent research abilities and scientific innovative abilities of undergraduates.

OBJECTIVEThis review aims to identify the dimensional structure of the shortened dentine hypersensitivity experience questionnaire (DHEQ-15) using confirmatory factor analysis (CFA).

METHODSThe Chinese language version of DHEQ-15 was applied to 210 patients with dentine hypersensitivity aged 18-70 years old. The three-dimensional construct was confirmed by CFA.

RESULTSAll the questionnaires were fully completed. The item "Because of the sensations, I take longer to finish a meal than others" was the most frequently reported by the parents. The modified three-factor model is suitable for the data. The chi-square fit statistics/degree of freedom was 2.213, the goodness-of-fit index was 0.905, the adjusted goodness-of-fit index was 0.872, the normed fit index was 0.845, the incremental fit index was 0.962, the Tucker-Lewis index was 0.969, the comparative fit index was 0.977, and the root mean square error of approximation was 0.068.

CONCLUSIONSOur findings generally support the three-dimensional construct of the DHEQ-15. Thus, DHEQ-15 can be used as a valid instrument in patients with dentine hypersensitivity in China.

Objective To evaluate the function of peripheral vessels, the change of ankle-brachial Index (ABI) and toe-brachial Index (TBI), and its related risk factors in elderly type 2 diabetic patients were observed. Methods Doppler frequency spectrum was used on lower limb of 128 type 2 diabetic patients and 103 non-diabetic people. ABI and TBI were calculated, other indexes including body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), hypersensitivity C-reactive protein(hs-CRP), triglyceride (TG), total cholesterol (TC), high density lipopretein (HDL), low density lipoprotein (LDL), fasting blood glucose(FBG), postprandial blood glucose (PPBG) and glycosylated hemoglobin (HbAlC) were measured. Results ABI and TBI were decreased in T2DM group as compared with control group (P<0.05), and hs-CRP was increased in T2DM group. With multiple stepwise regression, it showed that ABI and TBI was negatively related with age, SBP and T2DM duration, while ABI was positively correlated with HDL. In multiple logistic regression, cigarette, age, high blood pressure(HBP) and T2DM duration were independent risk factors with respective odds ratios of 1.94 (P<0.05), 2.12(P<0.01), 2.74(P<0.05) and 1.59(P<0.05), respectively. Conclusion Older age, T2DM duration, ciga-rette, hyperglycosema, HBP, low HDL and high bs-CRP play important roles in the occurrence and development of peripheral vascular dis-ease (PVD) in elderly type 2 diabetic patients. PVD of type 2 diabetic patients can be found earlier with Doppler diagnostic instrument.

Head and Neck Neoplasms ; genetics ; MicroRNAs

Background Both functional and morphological changes in amblyopic development are known to occur at various levels in the central visual pathway.However,whether the retina is involved or not during amblyopic progression remains controversial.Objective This study was designed to compare the thicknesses of the fovea and retinal nerve fiber layer (RNFL) of the normal fellow eye of amblyopic eye using optical coherence tomography (OCT) in children with myopic anisometropia.Methods Twenty-two patients with unilateral myopic anisometropic amblyopia were included as the anisometropia amblyopia group.Ten unilateral myopic anisometropic amblyopia subjects received treatment and recovered were used as the amblyopic cure group,and 11 individuals with simple myopic anisometropia without amblyopia were enrolled as the control group.OCT was performed on both eyes of all the subjects with informed consent.Fovea retinal thickness and RNFL thickness from the superior,inferior,nasal and temporal quadrants in the peripapillary region were evaluated.The measurement parameters were bilaterally compared in all the individuals by paired t test.The multiple regression model was used to analyze the correlation of retinal thickness with amblyopia patients.This study was approved by the Ethic Committee of this hospital.Written informed consent was obtain from each subject prior to the eye examination.Results Fovea retinal thickness increased in the amblyopic eyes compared with the fellow eyes,showing a statistically significant difference between them (P =0.001).However,no significant differences were found in the fovea retinal thickness between both eyes in the amblyopic cure group and simple myopic anisometropia without amblyopia group (P =0.778,0.943).Among the anisometropia amblyopia group,amblyopia cure group and simple myopic anisometropia without amblyopia group,the RNFL thicknesses of the temporal quadrant was significantly thicker in the higher myopic lateral eyes than those of the fellow eyes (P＜0.001,P =0.003,P =0.046).However,the differences in the superior,inferior,nasal and the average RNFL thickness were not statistically significant between the two eyes (P＞0.05).A negative correlation was found between the inferior retinal thickness with age (r=-0.559,P=0.016).Conclusions The fovea may be affected in unilateral myopic anisometropic amblyopia.There is no significant difference in the RNFL thickness between simple myopic eye and unilateral myopic anisometropia amblyopic eye.Improvement in amblyopia is coming along with the reduction of the thickness of the fovea.

0.05).Compared with the CSS,GMFM and WV before treatment,there were statistically difference after 6 and 12 weeks treatment in two groups(Pa

Objective 99Tcm-ciprofloxacin(Infecton)and 99Tcm-HIgG are both radiopharmaceuticals for inflammation and infectious disease imaging.It was reported that99Tcm-ciprofloxacin (Infecton)Was able to distinguish inflammation from infection.while 99Tcm-HIgG was a nonspecific agent.The study Was designed to compare the in vivo characteristics between 99Tcm-ciprofloxacin(Infecton)and 99Tcm-HIgG in rabbit model of inflammation.Methods Eight rabbits were grouped as inflammation model(the first group).infection model(the second group),concomitant inflammation and infection model(the third group),and control(the fourth group)groups.A total of 185 MBq(0.5 m1)99Tcm-ciprofloxacin(Infecton)Was administered intravenously to each rabbit.a serious dynamic images were acquired till 24 h post-injection.Repeated examination with99Tcm-HIgG was carried out 2 d later.Resuits 99Tcm-ciprofloxacin(Infecton)scan was negative in the inflammation models and controls.and was positive in the infection models.In the third group99Tcmciprofloxacin(Infecton)showed infection focus in the left thigh but negative uptake at inflammation focus in the right thigh.99Tcm-HIgG scan were positive in all models.The optimal image time for99Tcm-ciprofloxacin(Infecton)was 3 h after administration.but positive image could still be observed 24 h later.Conclusion 99Tcm-ciprofloxacin(Infecton)appears to specifically accumulate in the infective lesion.