To study effects of 9 cis retinoic acid (9 cisRA) on biological characteristics of lung squamous cancer cells, cell growth, cell differentiation and apoptotic indexes were observed in 9 cisRA treated L 78 and A 2 lung squamous cancer cells with flow cytometry. The results showed that 9 cisRA exerted marked inhibitory effect on the growth of two lung squamous cancer cell lines, 9 cisRA also had significant inducing effect on the differentiation of L 78 and A 2 cell lines, whereas the percentages of apoptosis of two cell lines in the treatment group were significantly higher than the control group. We conclude that 9 cisRA could inhibit growth inhibition, induce cell differentiation and apoptosis of L 78 and A 2 lung squamous cancer cells

Objective To compare the effica cy of three N,N-diethyl-m-toluamide (DEET) formulations against Schistosoma japonicum infection in mice. Methods Three 10% DEET formulations (DEET isopropanol solution,DEET cr eam and DEET vaseline ointment)were prepared and two experiments, no-dipping or dipping after applying DEET preparation ,were designed. In each experiment, mice were randomly divided into three experiment groups and three control groups . D ifferent DEET preparations were applied in the experiment groups and isopropanol solution, “yumeijing” cream , vaseline ointment were applied in the control g roups, respectively. At different time points after skin application (0.5, 1, 2 , 4 h and 8 h),the mice were infected with (50?5) Schistosoma j apon icum cercariae on the abdominal skin in no dipping experiment. I n dipping experiment,after mice skin were applied and were dipped for 10,30 min, 1 ,2 h and 4 h, respectively, the mice were infected with (50?5) cercariae. Af ter 6-7 weeks ,all the mice were sacrificed and the worms were collected by hea rt perfusion and counted.Worm reduction rates were calculated and rank sum tests w ere carried out. Results In no-dipping experim ent,three DEET formulations provided 100.0% protection in mice at least for 1 h .A t 2 ,4 h and 8 h ,the worm reduction rates were 94.8%,89.9% and 13.3% for DE ET isopropanol solution, 100.0%,97.8% and 50.7% for DEET cream and 100.0%,9 9.0% and 9 8.0% for DEET vaseline oinment, respectively. In dipping experi-ment, given 50.0% wor m reduction rate as efficient in preventing penetration by the cercariae, the e ffective times were 10 min for DEET isopropanol solution,30 min for DEET cream a nd 2 h for DEET vaseline oinment,respectively. Conclusion Three DEET formulations are effectiv e in preventing Schistosoma japonicum infection in mice.DEET vaseline oinment can provide better protection than the other two D EET formulations.

ObjectiveTo explore the efficiency of N,N-diethyl-m-toluamide (DEET) with different concentrations in prevention of Schistosoma japonicum infection in mice.MethodsKunming-mice were randomly divided into four groups for the application of the vaseline ointment with different DEET concentrations (0,10%,20% and 30%). After the abdominal skin of the mice were smeared with those DEETs above mentioned and dipped into water for 10,30 min,1,2 h and 4 h, the mice were infected with (505) cercariae respectively. After infected for 6-7 weeks, all of the mice were sacrificed,and by perfusing heart the worms were collected and counted.Worm reduction rates were calculated and the rank sum tests were carried out. ResultsAt the time points of 1,2 and 4 h , the worm reduction rates were 78.34%,63.15% and 40.23% for 10% DEET vaseline ointment, 98.61%,93.37% and 75.74% for 20% DEET vaseline ointment and 100.00%,98.61% and 93.07% for 30% DEET vaseline oinment respectively(H =10.06,10.84,10.80,all P

Objective To evaluate the clinical efficacy of intracavitary holmium laser for ureter calculi combined with distal ureteral stricture.Methods Sixty-nine patients with ureteral calculi combined with distal ureteral stricture were selected.Nineteen patients with ureteral calculi above third lumbar vertebra inferior margin combined with distal ureteral stricture were given microchannel percutaneous nephroscope holmium laser lithotripsy + ureteral stricture dilatation and holmium laser incision,and 50 patients with ureteral calculi below third lumbar vertebra inferior margin combined with distal ureteral stricture were given ureteroscope holmium laser lithotripsy + ureteral stricture dilatation and holmium laser incision.The type-B ultrasonic,kidney-ureter-bladder plain film (KUB) + intravenous urography (IVU) were performed before operative and 3 months after removal of double J tube,and the degree of hydronephrosis and calculi removal condition were observed.Results The operations of all the patients were successful,and operation time was 42-85 (58 ± 13) min.Intraoperative hemorrhoea,ureteral rupture,ureteral avulsion,false passage formation did not occur.All patients had varying degrees of gross hematuria after operation,and 68 cases disappeared after 2-3 d.Thirteen cases had postoperative fever,and these patients were alleviated after the anti-infection and symptomatic treatment.The success rate of gravel was 95.7％ (66/69),and the success rate of ureteral stricture was 97.1％ (67/69).Three months after removal of double J tube,calculi had been discharged,with no residual calculi.The patients' hydronephrosis was obviously alleviated.The extension of renal collecting system was (22.0 ± 8.2) mm before operation,and was (12.0 ± 6.1) mm 3 months after extraction double J tube,and there was statistical difference (t =8.52,P ＜ 0.01).Conclusions The nicrochannel percutaneous nephroscope holmium laser lithotripsy or ureteroscope holmium laser lithotripsy + ureteral stricture dilatation and holmium laser incision for ureteral calculi combined with distal ureteral stricture patients has no serious intraoperative and postoperative complications,shorter operation time,low cost,operation safety,and satisfactory effect.It is a good method for ureteral calculi combined with distal ureteral stricture.

Objective To summarize the experience of minimally invasive treatment in upper ureteral calculi complicated with urinary tract infection.Methods Retrospectively analyzed the clinical data of 40 cases with upper ureteral calculi complicated with urinary tract infection who were treated from December 2009 to December 2013.Results Twenty-one cases were performed with retrograde catheterization at cystoscopy and 11 cases were performed with percutaneous nephrostomy directed by B-ultrasound in the stage Ⅰ,the infection were controlled after operation 2-6 d.These patients were successfully cured by extracorporeal shock-wave lithotripsy (ESWL),ureterorenoscope lithotripsy (URL) or percutaneous nephrolithotomy (PCNL) in the stage Ⅱ].The remaining 8 cases were successfully cured by URL with antiinfection therapy in the stage Ⅰ.All patients had no ureteral perforation,laceration,urine derived sepsis and severe bleeding complications.All of ureteral calculi were drained after 2-10 weeks.The average hospital stay was 13.4 d.Patients were followed up for 1-12 months after the stone expulsion,the average was 6 months.There was 3 patients who with preoperative renal dysfunction had been improved after URL,and other patients' renal function returned to normal.Conclusions The therapy of retrograde catheterization at cystoscopy and percutaneous nephrostomy directed by B-ultrasound in the stage Ⅰ,combined with ESWL,URL or PCNL in the stage Ⅱ in treating upper ureteral calculi complicated with urinary tract infection have more advantage such as less complication,rapid control of infection and complete removal of stones.It is an ideal method.

Objective This paper attempts to explore the application of dizziness handicap inventory (DHI) in evaluation of health -related quality of life (QOL ) changes of patients with benign paroxysmal positional vertigo (BPPV) before and after the treatment with canalith repositioning procedure (CRP) .Methods The DHI was em-ployed to investigate and evaluate the dizziness handicap of 120 patients with BPPV before and after 3 months of CRP treatment (treatment group) and 60 healthy controls (control group) ,while the DHI scoring results were com-pared .Results As indicated by DHI evaluation ,the scoring of each DHI items of patients with BPPV before treatment was higher than that of control group ,treatment group before treatment :functional score 22 .60 ± 6 .54 ,emotional score 18 .50 ± 8 .28 ,physical score 17 .90 ± 5 .05 ,total composite score 59 .00 ± 14 .32 .For the control group:functional score 1 .35 ± 1 .74 ,emotional score 1 .00 ± 1 .01 ,physical score 1 .37 ± 1 .86 ,total composite score 3 .72 ± 3 .46 ,with the differ-ence statistically significant (P<0 .05) .The DHI scoring of treatment group of patients with BPPV after 3 months of CRP treatment was lower than that before the treatment (treatment group after 3 months CRP treatment :functional score 1 .10 ± 1 .42 ,emotional score 1 .50 ± 1 .70 ,physical score 1 .45 ± 1 .46 ,total composite score 4 .05 ± 3 .66) ,and the difference was statistically significant (P<0 .05) .There was no statistically significant difference comparing to the control group (P>0 .05) .Conclusion CRP is effective to treat BPPV .The DHI is available for the evaluation of QOL of BPPV patients .

Objective To investigate whether polymorphism of 102 T/C in 5-HTR2A (serotonin receptor 2A) are associated with Tourette syndrome (TS) in Chinese Han population or none.Methods A total of 101 TS patients and their parents were recruited for the study.The genetic contributions of the 5-HTR-2A 102 T/C polymorphism in 5HTR2A were evaluated using polymerase chain reaction and restriction enzyme digestion (PCRRFLP) and haplotype relative risk (HRR) and transmission disequilibrium test (TDT) statistics.Results The results revealed no significant associations between the 5-HTR-2A 102 T/C polymorphism and TS (HTR-2A 102T/C,TDT =0.353,df=1,P =0.621 ;HRR =1.127,x2 =0.358,P =0.550,95％ CI:0.762-1.666).Conclusion The data suggest that the HTR-2A 102 T/C polymorphism may not be associated with susceptibility to TS in the Chinese Han population.However,these results need to be replicated using larger datasets collected from different populations.

Objective To study features of the MRI and clinic in a family with pure hereditary spastic paraplegia (PHSPG) type 6.Methods Target loci (SPG3, 4, 6, 8 10 and 12) linkage analysis was performed in a SPG pedigree having 6 affected individuals using microsatellite markers and NIPA1 gene was screened for mutation by PCR-amplification and sequencing. MRI of brain and cervical and thoracic spinal cord were examined in these 6 patients and 6 normal controls matched for age and sex by two independent radiologists blinded to the clinical diagnosis. Cross-sectional areas and anteroposterior and transverse diameters of the spinal cord at the levels of C2～3, C7, T1～4, T9 were measured and data was statistically analyzed using the student's t test. Results A missense mutation of 316g→c in NIPA1 was identified in the affected subjects, presumably resulting in substitution of glutamic acid for arginine in residue 106. Evaluation of the brain MRI images revealed non-specific brain abnormalities. All patients presented thinning of cervical and upper thoracic spine with atrophy in both gray and white matter and enlarged subarachnoid cavity. In severe atrophic segments, a distinct boundary between grey and white matter was observed and the lesions in grey matter presented literal high intensity spots or patches with clear boundary on transaxial T2-weighted images (T2WI) and high signal intensity longitudinal strip on the sagittal T2WI. Cross-sectional areas and anteroposterior and transverse diameters of the spinal cord at C2～3, C7, T1～4 were significantly smaller in patients than in controls, while at the T9 level only transverse diameter showed significant difference (7.22±0.08 vs 8.17±0.41, t=2.870, P=0.046). Conclusions These findings indicate that the disease process in patients with SPG6 might be confined to the cervical and thoracic spinal cord, with atrophy in both white and grey matter having a distinct boundary.

This study was aimed to investigate the efficacy, acceptance, complications / adverse events treated with traditional manipulation and bed rest for patients with acute nonspecific low back pain (ANLBP). A total of 60 ANLBP patients were distributed into the Group A/B randomly and equally. Patients in Group A were treated by bed rest absolutely for one week; meanwhile patients in Group B were treated by traditional manipulation for one week. IBM SPSS20.0 was used to analyze the Visual Analogue Scale (VAS), Chinese Oswestry Disability Index (ODI), acceptance, complications / adverse events and others. The results showed that VAS and ODI reduced after one-week treatment in Group A and B (t = 14.67, 11.55, allP < 0.001 andt = 24.80, 15.35, allP <0.001). Differences of VAS and ODI were with significant difference between Group A and B (t = 3.24, 2.75,P =0.002, 0.009). Scores of acceptance and complications / adverse events were with significant difference between Group A and B (t = 2.65,P = 0.01 andχ2= 10.00,P = 0.002). It was concluded that both manipulation and bed rest can alleviatepain due to ANLBP, promote functional recovery. However, traditional manipulation can better improve symptoms, easier to be accepted by patients with less complications / adverse events.

Objective By analyzing the urinary calculi ingredient and 24-hour urinary stone risk factors of urolithiasis patients in Hengyang area,to investigate the effects of diet intervention on recurrence rate in urolithiasis patients,and provide the measures for prevention and treatment.Methods Prospectively collected 692 patients that permanent residents in Hengyang area from September 2008 to September 2012,who had implementation of minimally invasive operation and taken stone specimens to analyze composition,and also collected 24 hours urine to analyze the urinary stone risk factors.They were divided into test group and control group by random number table method,346 cases in each,control group without diet intervention,and test group was given diet intervention according to the stone composition and urinary stonerisk factors.All patients were followed up for 1 year,the urinary stone recurrence rate in Hengyang area was observed.Results Among 692 urolithiasis patients,663 patients completed the study (test group of 341 cases and control group of 322 cases),the expulsion rate was 4.19％(29/692).The 24-hour urinary stone risk factors in control group before and after diet intervention had no significant difference(P ＞ 0.05).In test group after diet intervention,the excretion of ingredients in urine such as dietary calcium (t =3.412,P ＜ 0.05),oxalate(t =3.018,P ＜ 0.05) and uric acid(t =1.990,P ＜ 0.05) was obviously decreased,and urinary citrate (t =3.174,P ＜ 0.05) was increased,but the excretion of ingredients such as magnesium and phosphorus had no significant difference (P ＞ 0.05).After 1 year after diet intervention,the recurrence rate in test group was lower than that in control group [0.88％ (3/341) vs.7.76％ (25/322)],there was significant difference (P ＜ 0.01).Conclusion Diet intervention can effectively reduce the risk of urinary stone according to the stone composition and the 24 hours urine stone risk factors,plays an important role on reducing urinary stone recurrence,which is worth clinical promotion.