Objective To study the impact of the number of functional natural teeth (FNT) and different oral restoration behaviors on well-being of the elderly.Methods The elderly residents of Guangzhou Haizhu District were acted as respondent,WHO-5 Scale was the measurement instrument of well-being.Analysis of covariance was used to correct confounding factors and analyze the corrected data,and then it was compared by LSD Test.Resuits (1) The results of analysis of covariance showed that,average scores on WHO-5 Scale were not all the same among different groups which were divided by different number of FNT or different oral restoration behaviors (Respectively:F=21.547,P＜0.001 ; F=141.219,P＜0.001).(2) The results of LSD Test showed that,although there were no statistical differences in corrected average scores between group with 5-9 FNT and group with 10-14 FNT (LSD-t=-0.536,P=0.593),differences had statistical senses between other groups(P＜0.01).All scores were ordered from the least to the most number of FNT,and they were (11.786±5.270),(15.724±4.036),(15.934±3.957),(18.941±2.616) and (23.390±6.951) respectively.It also showed that,there were no statistical differences in corrected average scores between the perfect oral restoration behavior group,the imperfect oral restoration behavior group and the no oral restoration behavior group(respectively:(23.056±4.772),(20.647±2.660),(14.872±7.313) ; P＜0.01).Statistical differences were also found in corrected average scores between the imperfect oral restoration behavior group and the abnormal oral restoration behavior group (respectively:(20.647 ±2.660),(14.565±2.914);LSD-t=13.108,P＜0.01).No statistical differences were found in corrected average scores between the no oral restoration behavior group and the abnormal oral restoration behavior group(respectively:(14.872±7.313),(14.565±2.914) ; LSD-t=-0.696,P＜0.01).The differences in corrected average scores between the needless oral restoration behavior group and the perfect oral restoration behavior group also showed no statistical significance (respectively:(22.848± 8.068),(23.056± 4.772) ; LSD-t =-0.340,P =0.734).Conclusion Well-being of the elderly may be associated with number of FNT and oral restoration behaviors.

BACKGROUND:Standard artificial prosthesis does not well match to patients' skeleton due to absolute individuation,while the difference between them does not keep the stabilization of artificial joint for a long term.OBJECTIVE:To construct three-dimensional models of custom-made femoral prosthesis by using computer-aided design and to verify whether custom-made femoral prosthesis is superior to popular femoral prosthesis via simulating and contrasting mechanical study.DESIGN,TIME AND SETTING:Opening study was performed in the Orthopaedics Institute of the First Clinical Hospital and the Biomechanics Institute,Jilin University between September 2006 and May 2007.MATERIALS:One fresh femur was derived from adult corps.METHODS:Two-dimensional images of the fresh femur was obtained by using total-length CT scanning and processed with computer edge recognition and three-dimensional contour extraction software to identify outer and inner contour of bone cavity,extract contour data of bone cavity and prosthesis,and construct three-dimensional models of femur and custom-rhade femoral prosthesis.SolidWorks software was used to establish three-dimensional prosthetic models in common biological and bone cement types; moreover,bone-cement,biological,and custom-made femoral prosthesis were replaced via simulating clinical surgery.MAIN OUTCOME MEASURES:Standing on single or double feet was simulated to measure stress distribution,interface stress,and primary micromotion of femoral prosthesis in the three types.RESULTS:Edge extracting was replaced by Canny calculator,characterizing by stable running,credible outcome,and consistent with the primary request.Stress,femoral stress,interface stress,and primary micromotion of custom-made femoral prosthesis were significantly lower than biological and'bone-cement femoral prosthesis (P ＜ 0.01).CONCLUSION:The computer-aided design is reliable to perform the assistant design of prosthesis; furthermore,biomechanical properties of the custom-made femoral prosthesis are superior to those of popular femoral prosthesis.

OBJECTIVETo explore the clinical value of the neonatal hearing combined with deafness gene screening.METHODSFrom February 2014 to August 2015, 1933 newborns were included in the study. We analyzed the effects of combined screening of hearing and deafness gene.RESULTSAmong all the 1933 neonates, 71.34% (1379/1933) passed and 28.66% (554/1933) failed the initial hearing screening.The hearing impairment rate was 4.14‰ (8/1933). Genetic screening mutation rate was counted. GJB2 mutation rate was 28.97‰ (56/1933). SLC26A4 mutation rate was 13.97‰ (27/1933). GJB3 mutation rate was 6.21‰ (12/1933). Mitochondrial 12 S rRNA gene mutation rate was 1.03‰ (2/1933). 1 case of 235 delc homozygous mutation did not pass the initial hearing screening and lost to follow-up rescreening. 2 cases of 12 S rRNA 1555A>G homogeneous mutations passed early hearing screening. 8 cases of auditory handicaps were all normal.CONCLUSIONDeafness gene screening can make up for the deficiencies of the universal newborn hearing screening. Joint use of both of them should complement each other and play the biggest role.

Objective To study the efficacy and toxicity of gensenoside-Rg3 (Rg3) combined with radiotherapy on non-small cell lung cancer ( NSCLC ) at advanced stages (Ⅲ and Ⅴ ).Methods Sixty-three patients with stage Ⅲ or Ⅳ NSCLC were divided randomly into two groups:treatment group ( n =35 ) treated with Rg3 combined with radiotherapy and control group ( n =28 ) treated with radiotherapy alone.The efficacy and side effects were compared after the treatment.Results The response rate ( CR + PR) of the treatment group was 57.14％,significantly higher than that of the control group (32.14％,x2 =3.91,P ＜ 0.05).The median survival time of the treatment group was 14.2 months,significantly longer than that of the control group ( 11.2 months,x2 =2.07,P ＜ 0.05 ).The one-year survival rate of the treatment group was 62.86％,significantly higher than that of the control group (39.29％,x2 =4.40,P ＜0.05).The incidence rates of side effects of the treatment group were all lower than those of the control group,but there were not significant difference. Conclusions Gensenoside-Rg3 combined with radiotherapy is effective for advanced stage NSCLC,with attenuation and synergistic effects.

2cm~2.Conclusions The auto-cranial pedicle flap via endonasal repairing blow-out fractures of or- bital inferior wails is an effective technique.The results are good for improving eye movement especially for fracture ranged≤2cm~2. (Ophthalmol CHN,2007,16:388-390)

Objective To understand the level of urinary iodine of schoolchildren and salt iodine content of their families in a primary school and to analysis influence between salt iodine content and urinary iodine level in Haimen City,Jiangsu Province.Methods A cross-sectional study was conducted in a primary school of Haimen City in 2012.With the method of stratified cluster sampling,all students aged 9 ～ 12 were extracted in grades 3-5,urine samples and salt samples of their family were collected.Urinary iodine and salt iodine were determined according to Method for Determination of Iodine in Urine by As3+-Ce4+ Catalytic Spectrophotometry (WS/T 107-2006) and Direct Titration of Universal Test method in Salt Industry (GB/T 13025.7-1999).Results Totally,452 students from grades 3-5,including 233 boys and 219 girls were selected by cluster-stratified sampling.The median of children's urinary iodine was 231.90 μg/L,while the median of boys and girls was 235.40 and 222.60 μg/L,respectively.The median of urinary iodine of 9,10,11 and 12 year old students was 253.65,195.70,236.40 and 241.70 μg/L,respectively.The proportion of less than 100 μg/L and ≥300 μg/L was 7.7％ (35/452) and 27.7％ (125/452),respectively.There were no significant differences between different gender and age students.Among the 452 salt samples collected the median of salt iodine was 27.50 mg/kg.The coverage rate of iodized salt,the qualified rate of iodized salt and the intake rate of qualified iodized salt were 98.9％ (447/452),95.1％ (425/447) and 94.0％ (425/452),respectively.After consumptionn of non-iodized salt (＜ 5 mg/kg),unqualified iodized salt(5 ～ ＜ 20 mg/kg or ＞ 50 mg/kg) or qualified iodized salt [(35 ± 15)mg/kg],the median of urinary iodine of children was 177.30,211.95 and 232.90 μg/L,respectively.Correlation analysis showed that there was no relationship between iodine content of salt and urinary iodine level of schoolchildren (r =0.085,P ＞ 0.05).Conclusions Current nutritional level of schoolchildren in Haimen City is higher than the appropriate amount.Household salt iodine content of edible salt does not affect urinary iodine level of the children significantly.

AIMTo investigate the extent of systemic absorption and uptake of meptazinol (MEP) hydrochloride in cerebrospinal fluid (CSF) after intranasal administration on rats and compare with oral administration.

METHODSCSF samples were collected by a serial sampling method. The concentration of MEP in the biological samples was measured by HPLC with fluorescence detector.

RESULTSRapid and significant levels of MEP in plasma and CSF can be achieved after nasal administration whereas the oral administration resulted in considerably lower drug concentrations. AUC in plasma and CSF from the nasal route are 7.375 and 15.6 folds compared with those of the oral route, respectively.

CONCLUSIONIntranasal MEP is able to show quick absorption and improve the bioavailability, which could be a promising alternative to oral administration.

Administration, Intranasal ; Administration, Oral ; Analgesics, Opioid ; administration & dosage ; blood ; cerebrospinal fluid ; pharmacokinetics ; Animals ; Area Under Curve ; Biological Availability ; Chromatography, High Pressure Liquid ; methods ; Male ; Meptazinol ; administration & dosage ; blood ; cerebrospinal fluid ; pharmacokinetics ; Rats ; Rats, Sprague-Dawley

ObjectiveTo investigate the type,characteristics and development trend of prehospital medical care of sudden mass incident from 2001 to 2010 in Guangzhou.MethodsThe data of prehospital medical care of sudden mass incident in Guangzhou from 2001 to 2010 were come from the database of 120 Emergency Center.ResultsTotal 6 807 events of Sudden mass incident were recorded from 2001 to 2010,resulting in 26 749 injuries and 917 deaths.In all kinds of sudden mass incident,traffic accident was primary cause ( the number of cases,injuries and deaths accounted for 49.80％,55.29％ and 61.72％,respectively),followed by fighting,fire and poisoning.Over the past decade,the number of occurrence of traffic accidents and the number of injuries were increasing.The large sudden mass incident was 76.65％ in all levels of sudden mass incident happened from 2008 to 2010.Conclusions Traffic accident is an important cause of sudden mass incident in Guangzhou from 2001 to 2010.The number of the traffic accident cases and injuries were increasing.The large sudden mass incident was the main type in all levels of sudden mass incident.It is important to improve the emergency plan,strengthen the training of medical staff and organize the medical rescue drill of sudden mass incident regularly.

Objective To observethe efficacy of mice infected with Sparganum mansoni by using different dosages of praziquantel.Methods A total of 156 Kunming mice were divided into 2 batches.each of them wag orally infted with 5 spargana.Thirty-six mice in the first batch were equally divided into 6 groups.the mice in group 1-5 were inoculated with spargana cultured in different concentrations of praziquantel for 3 days,the group 6 served as a control.One hundred and twenty mice in the second batch were equally divided into 12 groups,each mouse was inoculated with spargana obtained from frogs or tadpoles,group 1-9 were treated by different desages of praziquantel 1 or5 weeks post infection.group 10-12 served as controls.All of the mice wore sacriftced and dissectedl or 2 weeks after the treatment.the mean number of worms recovered was cmculated and worm reduction rates were determined.Results The number of worm recovered from mice infected with spargana cultured in 10-40 μg/ml of praziquantel had no significant difference with that of the control(P>0.05).The worm reduction rate wag 16.60%while the spargana beins cultured in 50 μg/ml of praziquantel.The worm reduction rates of the mice that sacrificed 1 week or 2 weeks after being treated by the same dosage of praziquantel had no significant difference(P>0.05).When being treated with 200.400 or 800 mg/kg of praziquantel 1 week post infection,the number of worm recovered from mice infected with spargana from frogs had no significant difference with those of the control 1 and 2 weeks after the treatment(P>0.05).The worm reduction rates between the groups with the same dosage 1 week and 2 weeks post treatment had no significant difference(P>0.05).When being treated with 200 or 400 mg/kg of praziquantel 1 week post infection,the number of worm recovered from mice infected with spargana from tadpoles had no statistically difference with that of the control 1 week after treatment (P>0. 05). The worm reduction rate of mice was only 17.02% while being treated with 800 mg/kg of praziquantel. The worm reduction rates among groups with different dosages had no significant difference (P>0.05). Compared with the mice infected with spargana from frogs treated with 1 200 or 1 800 mg/kg of praziquantel 5 weeks post infection, the difference between the numbers of worm recovered from mice 1 week and 2 weeks after treatment had no statistically significance (P > 0.05), but they were significantly higher than those of the controls (P<0.05 ). The worm reduction rates among the groups with the same dosage had no significant difference (P>0.05). ConclusionsPraziquantel (10-50 μg/ml) has no evident killing effect on spargnna in vitro, but when the dosage is higher(1 800 mg/kg), it has certain efficacy for treating the mice infected with spargana by oral inoculation.

Objective To investigate the value of contrast-enhanced ultrasound(CEUS) to diagnose thyroid nodules with different calcifications,and analyze its correlation with age and gender.Methods The image characteristics of high frequency ultrasound and pathological results of 522 patients with calcified thyroid nodules were analyzed retrospectively.CEUS enhancement patterns of different age and gender were observed and compared.Results There were no malignant nodules in patients under the age of 10.In the group of male and female,malignant nodules patients constituted the highest proportion between 40-49years old and a minimal proportion between 10-19 years old.The CEUS for weak enhancement with micro calcifications were mostly malignant nodules;the high or equal enhancement with macrocalcifications were mostly benign nodules.But a part of micro calcifications in young women patients (20 to 29 years old) with high or equal enhancement were mostly malignant nodules.Conclusions The CEUS for weak enhancement with microcalcifications are mostly malignant nodules,but a part of microcalcifications in young women patients (20 to 29 years old) with high or equal enhancement are mostly malignant nodules.