coarse polished rice for lead respectively. Positive correlations were observed in contents of cadmium and lead between soil and rice (r=0.942～0.994, P

BACKGROUND:More and more elderly patients have hip fractures because of diverse reasons, and most of the fractures are unstable fractures combined with the displacement of the lesser trochanter. At present, there are stil many reports about using dynamic hip screw to repair unstable intertrochanteric fractures, and the effect is obvious. However, there are stil great controversies regarding whether lesser trochanter fixation is performed during the repair process. OBJECTIVE:To evaluate the effect of using dynamic hip screw combined with the lesser trochanter fixation to repair intertrochanteric fractures and the occurrence of hip coxa vara after repair through a meta-analysis. METHODS:The PubMed, EMCC, CBM, CNKI, VIP and Wanfang databases were retrieved by computer for randomized controled trials on whether lesser trochanter reduction fixation was performed during the process of dynamic hip screw internal fixation for repair of intertrochanteric fractures. The quality of the included studies was evaluated according to the pre-designated inclusion and exclusion criteria. The available data were extracted and analyzed using the RevMan5.2 software. RESULTS AND CONCLUSION:A total of 10 randomized controled trials involving 604 patients were included. Among them, 298 cases were assigned to the dynamic hip screw combined with lesser trochanter fixation group, and 306 cases to the lesser trochanter unfixed group. The meta-analysis results indicated that hip coxa vara, other postoperative complications, the excelent and good rate of efficacy in the dynamic hip screw combined with lesser trochanter fixation group were al superior to those in the lesser trochanter unfixed group (alP < 0.000 1), and for hip coxa vara, the parameters were odds ratio=0.17, 95% confidence interval (0.07, 0.41),Z=3.99,P< 0.000 1. The operation time and the amount of blood loss in the lesser trochanter unfixed group were superior to those in the dynamic hip screw combined with lesser trochanter fixation group (alP < 0.000 1). These results suggest that the lesser trochanter unfixed therapy has the advantages of relatively simple operation, shorter operative time and less blood loss during the process of dynamic hip screw internal fixation for repair of unstable intertrochanteric fractures. However, the excelent and good rates of efficacy, hip coxa vara and other postoperative complications were superior in patients with intertrochanteric fracture above the Tronzo-Evans III type who received dynamic hip screw combined with lesser trochanter fixation to those who received lesser trochanter unfixed therapy. The results indicate that dynamic hip screw combined with lesser trochanter fixation for repair of intertrochanteric fracture is beneficial to prevent hip coxa vara and other complications.

Objective To determine whether isometric handgrip exercise can increase collateral flow to the ischemic myocardium in acute coronary occlusion patients with coronary artery disease (CAD).Methods Sixty-five patients with one-vessel CAD were randomly assigned to either an isometric exercise (IME) group or no-exercise (NE) group.Patients in the IME group performed isometric handgrip exercises (50％ of the maximum voluntary contraction) during 1 min of coronary balloon occlusion.Patients in the NE group remained sedentary during the procedure.The collateral flow index (CFI),heart rare (HR),systolic blood pressure (SBP) and diastolic blood pressure (DBP) were determined prior to and at the end of 1 min of coronary occlusion.Results In the IME group the average CFI improved significantly more during the occlusion than in the NE group.The differences in HR,SBP and DBP were also significantly grcatcr in the CFI group than in the NE group controls.Conclusion Isometric exercise can induce significantly increased coronary collateral flow in CAD patients during acute vessel occlusion.

BacKground:The mechanism of diabetic gastrointestinaI dysmotiIity is stiII uncIear. More and more studies showed that gastrointestinaI smooth muscIe derived factors pIay an important roIe in gastrointestinaI dysmotiIity. RecentIy,the roIe of RhoA/ROCK signaIing pathway in diabetic compIications become a research hotspot. Aims:To investigate the possibIe roIe of RhoA/ROCK signaIing pathway in diabetic coIon dysmotiIity by examining the expressions of major signaIing moIecuIes in diabetic coIon muscIe. Methods:NormaI coIon tissue sampIes taken from patients undergoing radicaI surgery for coIonic cancer from Sept. 2012 to Dec. 2013 at the First AffiIiated HospitaI of Nanjing MedicaI University were coIIected. According to gIycated hemogIobin IeveI,the patients were divided into diabetes meIIitus( DM)group and controI group. The expressions of major signaIing moIecuIes in RhoA/ROCK1 signaIing pathway incIuding RhoA,ROCK1,MYPT1 and p-MYPT1 were determined by immunohistochemistry or Western bIotting. Results:Immunohistochemistry showed that expression of RhoA protein in DM group was significantIy Iower than that in controI group(P<0. 05). Western bIotting showed that expression IeveIs of RhoA,ROCK1 and p-MYPT1 proteins were significantIy Iower in DM group than in controI group(0. 62 ± 0. 42 vs. 1. 15 ± 0. 69,0. 54 ± 0. 09 vs. 0. 75 ± 0. 05,0. 70 ± 0. 28 vs. 1. 04 ± 0. 47;P<0. 05),whereas no significant difference in expression IeveI of MYPT1 protein was found between DM group and controI group(0. 94 ± 0. 50 vs. 1. 21 ± 0. 80,P>0. 05). Conclusions:The inhibition of RhoA/ROCK signaIing pathway in diabetic coIon muscIe may have some correIation with diabetic coIon dysmotiIity.

Objective To explore the effectiveness of the timed up and go test (TUGT) and the maximum walking speed test (MWST) in evaluating stroke patients' motor function.Methods Twenty-two stroke patients were assessed using the TUGT and MWST,and the temporal-spatial parameters of their gait were also assessed.The correlations among the TUGT times,walking speed and the gait parameters were quantified using Pearson correlation coefficients.Results The TUGT time was (18.57±7.41) s,significantly correlated with step length and velocity (P＜0.05).Walking speed showed a significant positive correlation with step length,velocity and step length (P＜ 0.05).The TUGT times were negatively correlated with walking speed (r=-0.712,P=0.000).Conclusion The MWST and TUGT both can assess stroke patients' motor function effectively.

Objective To study the application of super-selective external carotid artery embolization in head and neck diseases. Methods DSA and super-selective external carotid artery embolization were carried out in 41 cases of head and neck diseases including 12 cases of epistaxis,7 nasopharyngeal fibroangioma,1 traumatic arterial bleeding,14 vascular malformation,and 7 malignancies. Results No recurrence of nose bleeding after embolization of epistaxis was seen within 6 - 12-month follow up. The operative bleeding was reduced significantly by preoperative embolization in nasopharyngeal fibroangioma. No recurrence of bleeding was achieved after embolization of traumatic artery. Among the cases of vascular malformation,3 were proven to be significantly effcient,6 effcient,and 5 inefficent in the 6 - 12-month follow up. Among the 7 malignant cases,3 survived more than 2 years. Conclusion Super-selective external carotid artery embolization is safe and effective in the treatment of head and neck diseases. (J Intervent Radiol,2006,15: 330-332)

Objective:To observe the hypoglycemic effects of Cortex Lycii Radicis (CLR) on alloxan induced diabetic mice.Methods:The alloxan induced diabetic mice were given drug decoction of CLR[2.5g/(kg?d) -1 , or 5.0g/(kg?d) -1 )] for successive 2 weeks, The blood sugar level was determined with GOD method.Results:There were remarkedly differences in the levels of blood sugar between before and after treatment of various groups. ( P

Objective: To explore the effect of the new vaginal douche device on vaginal irrigation before ovulation extraction in vitro fertilization-embryo transfer. Methods: From August 2017 to April 2018, 100 cases of infertility patients admitted to the first hospital of reproductive and gynecology of Jilin University who had to undergo ovulectomy were selected and divided into 50 cases in the experimental group and 50 cases in the control group according to the random number table. In the test group, a new type of vaginal irrigator was used for vaginal irrigation one day before the operation, while in the control group, a disposable enema was used for vaginal irrigation. The vaginal cleanliness and comfort of the two groups were compared after washing. Results: Vaginal cleanliness was compared between the two groups. Bacterial culture of vaginal secretions was positive in 2 patients in the experimental group, with a positive rate of 4%. In the control group, bacterial culture of vaginal secretions was positive in 14 patients, with a positive rate of 28%. Vaginal cleanliness was better in the experimental group than in the control group (χ²=10.714, P=0.001). In the experimental group, there were 2 cases of discomfort, 10 cases of discomfort, 29 cases of comfort, and 9 cases of comfort. In the control group, there were 8 cases of discomfort and 17 cases of discomfort. The comfort level of the experimental group was higher than that of the control group, and the difference was statistically significant (Z=-2.271, P=0.023). Conclusions The operation method of the new vaginal douche is simple and soft, which can not only effectively and thoroughly clean the vagina, reduce the incidence of infection, but also increase the comfort level of patients, alleviate psychological fear and improve patient satisfaction.

In order to assess the thermal effect of different holmium laser fiber during lithotripsy with WOLF F4.5/6.5 pediatric ureteroscope, we established an impacted ureter calculi model. Under 100mmHg irrigation pressure, regional temperature of different holmium laser fiber with varied working time and power were recorded. We found that the regional temperature was related with laser fiber diameters, power and working time settings. With 550 μm laser fiber, laser firing time longer than 3 s or 365 μm laser fiber firing more than 6 s, regional temperature exceeded 42℃, which would bring thermal injury towards ureter and subsequently cause ureter stricture.

Objective:To explore the treatment options for patients with osteoporotic thoracolumbar injury classification and severity score (OTLICS) of 4 points following acute symptomatic osteoporotic vertebral compression fracture (OVCF) .Methods:A retrospective case-control study was conducted to analyze the clinical data of 108 patients with acute symptomatic OVCF admitted to Honghui Hospital, Xi'an Jiaotong University Faculty of Medicine from February 2016 to February 2018. There were 21 males and 87 females, aged 55-92 years [(71.6±5.3)years]. All patients had OTLICS score of 4 points. Of all, 76 patients were treated operatively (surgery group) and 32 patients were treated non-operatively (non-surgery group). The visual analogue scale (VAS), Oswestry disability index (ODI) and quality of life score (SF-36) were compared between the two groups before treatment, at 1 week, 3 months, 6 months after treatment, and at the last follow-up. The recovery of the injured vertebrae before and after treatment (Cobb angle of the injured vertebra, relative height of the anterior edge of the injured vertebrae), adjacent vertebral body fractures, and complications were compared between the two groups.Results:All patients were followed up for 12-18 months [(13.4±4.2)months]. At 1 week, 3 months and 6 months after treatment, the VAS in surgery group [(3.5±1.0)points, (2.1±0.6)points, (2.0±0.4)points] was better than that in non-surgery group [(6.4±1.7)points, (5.3±1.5)points, (3.3±0.6)points] ( P<0.05), the ODI in surgery group [(45.8±10.3)points, (35.3±8.6)points, (26.5±7.1)points] was better than that in non-surgery group [(65.7±12.1)points, (58.3±10.7)points, (45.6±9.3)points] ( P<0.05), the SF-36 in surgery group [(82.8±1.4)points, (85.0±1.5)points, (88.0±1.3)points] was better than that in non-surgery group [(80.4±1.3)points, (81.5±1.4)points, (85.6±1.1)points] ( P<0.05). At the last follow-up, there were no significant differences in VAS, ODI and SF-36 between the two groups ( P>0.05). At 3 months, 6 months and the last follow-up, the Cobb angle in surgery group [(18.3±3.9)°, (17.5±3.0)°, (17.8±1.6)°] was better than that in non-surgery group [(22.4±2.2)°, (22.5±1.7)°, (22.1±1.3)°] ( P<0.05), and the relative height of the anterior edge of the injured vertebra in surgery group [(75.4±8.6)%, (76.6±8.6)%, (75.2±8.3)%] was better than that in non-surgery group [(63.5±7.6)%, (65.2±7.4)%, (62.8±7.2)%] ( P<0.05). The adjacent vertebral fractures occurred in 6 patients (8%) in surgery group, and in 2 patients (6%)in non-surgey group ( P>0.05). Postoperative complications occurred in 8 patients (11%) in surgery group, and occurred in 6 patients (19%) in non-surgery group ( P>0.05). Conclusion:When applying the OTLICS scoring system to treat acute symptomatic OVCF, patients with OTLICS score of 4 points should be promptly treated with operatively, which can quick relieve pain, correct deformities promote functional recovery, and improve quality of life.