A comprehensive strategy for snail control, including environmental modification and mollusciciding, was implemented in Ya-he River, Changsha County of Hunan Province from 2003 to 2004. The snail status declined significantly in 2005 and 2006, and no snailswere found since 2007. It is indicated that the environmental modification combined with mollusciciding is an effective approach for snailcontrol so as to control the transmission of schistosomiasis.

These methods that how to meet the standards of electrical power supply,power waveform distortion to what extent and whether or not contaminated are discussed.On the basis of national standards-The Quality of Public Power Grid Harmonic,disposal measures,methods and installation modality of medical electric equipment on dealing with harmonic pollution are explained.

Amniotic fluid-derived mesenchymal stem cells(AF-MSCs)are multipotential,nonhemato-poietic progenitor cells that have an inherent ability to self -renew and to differentiate into many cell types ,inclu-ding osteoblasts,chondrocytes and adipocytes.Despite their high proliferation rate,no in vivo tumorigenicity has been reported and their karyotype was normal even after extensive expansion in culture .Several studies have dem-onstrated the inherent tumortropic properties of MSCs and their successful use as cellular vehicles of therapeutic agents for the treatment of several types of cancer .This article reviews recent articles on studying the role of amni-otic fluid-derived mesenchymal stem cells in cancer therapy .

Objective To explore the efficacy and safety of mosapride combined withpancreatic kallikrein in the treatment of diabetic neurogenic bladder(DNB).Methods According to the digital table,120 patients with DNB were randomly divided into the control group and the observation group,each group 60 cases,All patients received basic treatment,including reducing blood glucose,reducing blood pressure,nutrition nerve and regulating blood lipids,and the observation group was accepted the treatment of original enzyme plus mosapride pancreatic kinin on basis of the above treatment.The treatment time of the two groups was both 3 weeks,The effect,blood sugar,blood hpids,urodynamic,quality of life,and the incidence of adverse reactions were observed.Results The total effective rate of the observation group was 93.33％,which was significantly higher than that of the control group (65.00％) (χ2 =14.602,P ＜ 0.01) ；the adverse reaction rate of the observation group was 8,33％,which was significantly lower than that of the control group(20.00％)(χ2 =11.368,P ＜ 0.01),Conclusion Mosapride combined with pancreatic kallikrein in thetreatment of DNB has better effect,and could significantly improve the clinical symptoms and quality of life of patients.So it should be promoted and applied.

Objective To study clinical value of blood glucose, AFP and cholinesterase levels on the diagnosis and prognosis of severe hepatitis. Methods Retrospective analysis of chronic hepatitis B, cirrhosis, chronic severe hepatitis, subacute severe hepatitis was carried out. In severe hepatitis patients, between the improved group and death group, blood glucose, AFP, cholinesterase differences, evaluate blood glucose, alpha-fetoprotein, cholinesterase levels on the diagnosis and prognosis of severe hepatitis value were compared. Results Subacute severe hepatitis, chronic severe hepatitis patients and blood cholinesterase levels were significantly lower than that in patients with chronic hepatitis B and liver cirrhosis(all P ＜ 0.05) ;and alpha-fetoprotein level was significantly higher than the level of chronic hepatitis B patients(P ＜ 0. 01) ;improved levels of blood glucose in patients with severe hepatitis, AFP, cholinesterase levels were significantly higher than the level of death group (all P ＜ 0.05). Conclusion Blood glucose, AFP, cholinesterase levels of liver disease progression and prognosis were important to determine the value.

Objective To evaluate the clinical result and feasibility of anterior approach with posterior vertebral wall preserved in the treatment of thoracolumbar burst fracture with or without paraplegia. Methods From 2005 to 2010, 68 patients with thoracolumbar burst fracture were treated by corpectomy, strut graft and instrumentation with preserved posterior vertebral wall. There were 49 males and 19 females at average age of 39.8 years (16-62 years). Kyphotic Cobb' s angle and spinal stenotic rate was measured preoperatively and postoperatively. The neurological status was evaluated with Frankel impairment scale. Results All patients were successfully managed with this technique, with no neurological deteriorations, cerebrospinal fluid leakage or incision infections except for the pneumothorax in three patients who were then cured through expectant treatment. Screw distraction was performed for restoration of the disc height and kyphosis in 68 patients. After the fractured fragment became loose and was removed, the dura matter was exposed in 19 patients including the eerebrospinal fluid leakage in three patients. Retrograde lumbar myelography was applied in eight patients, of whom there found the blocked spinal canal in three patients and excision of the posterior vertebral wall was performed. Lack of vertebral distraction was found in two patients and extraction of the reversed bone fracture behind the posterior longitudinal ligament was performed in one. The preservation rate of the posterior vertebral wall was 95% (65/68). Fifty-two patients were followed up for mean 2.2 years (from 3 months to 4.5 years) ,which showed no lower back kyphosis. There showed 1-3 Frankel grades of improvement in spinal cord function except for five patients at Frankel grade A. The Cobb angle was average 18.2° in 68 patients preoperatively and was corrected to 9.7°in 52 patients at last follow-up. CT scan showed that the stenotic rate was 42% preoperatively and 9% at final follow up in 68 patients,with no breakage of the screw and plate. Conclusion In the management of thoracolumbar burst fractures,anterior approach is helpful for preservation of the posterior vertebral wall.

Objective To observe the clinical feature of postural hypotension (PH) in in-hospital elderly patients. Methods Measure the supine and orthostatic blood pressure in patients were measured, and the clinical characteristics of PH and clinical incident during hospital stay were analyzed. Results (1)The PH incidence in elderly patients was 24. 11% ; (2)The incidence of systolic blood pressure PH was higher in patients with concomitant hypertension and diabetes ( P ＜ 0.05 & P ＜0.01), especially in those with relatively higher basal systolic blood pressure and diastolic blood pressure ( P ＜ 0.001); the percentage of patients taking diuretics ( P ＜ 0. 05) and calcium antagonists ( P ＜ 0. 01) were relatively higher in patients with diastolic blood pressure PH; (3)Systolic blood pressure in patients from the group with PH lowered (31 ±25) mmHg, while diastolic blood pressure lowered (11 ±15) mmHg; (4)The incidence of clinical events, including dizziness or vertigo, syncope or pre-syncope, angina pectoris or new-onset myocardial infarction, and new-onset stroke, in PH patients was distinctly higher than that in patients from the group without PH ( P ＜0. 01).Conclusion PH is a kind of common clinical manifestations in elderly patients, which tends to induce tumbling, angina pectoris, stroke, etc, and ought to be paid great attention to and taken preventive measures.

Objective To evaluate the effects of focal vibration on the physical properties and surface electroyograms of persons with neck-shoulder pain.Methods Thirty-four patients with neck-shoulder pain received 3 to 5 applications of vibratory stimulation of the inner side of the trapezius and scapula for 30 s each time.They reported their pain level using a visual analogue scale.Muscle tone and the elasticity and stiffness of the trapezius muscle were measured bilaterally using a MyotonPRO Muscular Function Evaluation System.Surface electromyography (sEMG) was performed bilaterally during arm extension while standing.The testing was repeated four times:before treatment (baseline),immediately after treatment (IAT),2 hours after treatment (2AT) and 6 hours after treatment (6AT).Results There was a significant reduction in reported pain at IAT and 2AT compared to baseline,but no significant difference was found between the perceived pain at baseline and at 6AT.The values of oscillation frequency,logarithmic decrement and dynamic stiffness had decreased significantly at IAT and 2AT compared to baseline.The average AEMG during upper-arm flexion of the trapezius on the painful side had increased significantly at IAT comparcd to that before the treatment,while the average IEMG and MF were both significantly higher than before the treatment.At 2AT the average AEMG and IEMG were both still significantly higher than at the baseline,but there was no longer a significant difference in the average MF.By 6AT none of the three indicators differed significantly from those before the treatment.Conclusions A single session of focal vibration can relieve pain,increase muscle activation as well as decrease muscle stiffness for people with neck-shoulder pain within 2 hours.

Background and purpose:Radiofrequency ablation (RFA) was one of the best combined treatments for hepatocarcinoma. CT was commonly used to evaluate treatment response and recurrent disease. However it was diffi cult to evaluate treatment effectiveness of RFA and to detect recurrent nodule especially the size below 1cm. Digital subtraction arteriography(DSA) may provide fi nal diagnosis of recurrent nodule after RFA for hepatocarcinoma. Our purpose was to analyze the signs of DSA after RFA for hepatocarcinoma in order to provide possible reference for treatment effectiveness and the imaging follow-up methods. Methods:17 patients with primary liver cancer (n=15) or hepatic metastasis(n=2) were enrolled in this study. Common hepatic arteriography or super-selective angiography of suspicious tumor area were performed on all patients. Results:On DSA, most ablated regions presented as round or ovoid low density areas with no stain. At the peripheral zone of the lesion, fi ve signs after RFA could be found: Stain of localized granulation tissue, arterio-portal fi stula, hemorrhage, recurrence and no abnormal fi ndings. Local or intrahepatic recurrence occurred in 9 cases. Conclusion:Hepatic DSA has great value in detecting local recurrence of hepatic tumor after RFA treatment. DSA is superior to CT in detecting marginal or intrahepatic recurrent nodule below 1 cm.

Objective To investigate the clinical value of radioactive seed 125Ⅰ implantation combined with gemcitabine(GEM)in treatment for peripheral non-small cell lung cancer(NSCLC).Methods 60 patients(male 35,female 27,mean age 73.3)with peripheral lung carcinoma were confirmed under CT-guided biopsy including 8 bronchoalveolar caicinomas and 17 squamous carcinomas,6 in the stage I,14 in the stage II,34 in the stage III and 6 in the stage IV were designated under clinical staging.All patients were devided into two groups as GEM group and GEM-125Ⅰ group.GEM group underwent chemotherapy with GEM only and GEM-125Ⅰ group was treated under CT guided radioactive seed 125Ⅰ implantation combined with gemcitabine.Results GEM group showed tumors under controlling as PR in 5,SD in 14,PD in 11 cases;the total effective rate was 16% and the total control rate was 63%.The median survival time was 7 months and one years survival rate was 26%.GEM-125Ⅰ group revealed CR in 5,PR in 11,SD in 8,PD in 6 cases and the total effective rate reached 36% with total control rate as 80%.The median survival time was 12.3 months and one year survival rate was 50%.There was a significant difference(P