Tandem-pore-domain potassium channels are a diverse and highly regulated superfamily of channels that are thought to provide baseline regulation of membrane excitability. Of these, TREK are highly expressed in human CNS. TREK can be regulated by both physical and chemical factors. Lately, study on knockout animals suggested that TREK-1 might participate in the process of general anesthesia of some anesthetics.

Objective To analyze the reasons for in-hospital mortality after a surgical resection for esophageal and cardial cancer and countermeasures.Methods From 1999.1 to 2010.12,7,225 patients with esophageal and cardial cancer were performed surgery in Cancer Institute and Hospital.Retrospectively analyzing the clinical datas of patients in-hospital mortality of these patients.Results 71 cases of 7,225 patients with a surgical resection for esophageal and cardial cancer died in-hospital after surgery.Conclusion Strictly mastering the operative indications,treating the acompaning diseases actively,choose the appropriate surgical approach,careful operation in surgery,reducing surgical time,intensice care after surgery and timely treatment of postoperative complications correctly may play a significant role in the decrease of in-hospital mortality after surgery.

Objective To investigate the mechanism of acute patella bone cartilage fracture,and further study its diagnosis and treatment of clinical significance.Methods Collecting 21 cases of the acute patella bone cartilage fracture from July 2005 to December 2007.Eleven patients were male and ten were female,with the mean age of 31.6 (16～46) years.All the patients were treated using the arthroseopic microfracture technique after MR examination.Results All patients were followed up 6 to 18 months,did not show patellofemoral joint pain. Evaluated by Tagner rating,excellent outcomes were found in 17 cases,good in 4 cases,satisfactory results in 100% cases.Conclusion The arthroscopic microfracture technique in treatment of the patella cartilage fracture method is simple,easy to operate,can significantly improve knee function and pain,as well as the quality of life.

The Fukushima nuclear accident happened in 2011.This article introduced the recent studies about thyroid dose estimation,incidence of thyroid nodule,thyroid cyst and thyroid cancer in the children in Fukushima prefecture after the accident.The results suggested that the incidence of thyroid nodule and thyroid cyst had no significant increase.Nevertheless,the present research noted that the incidence of thyroid cancer was obviously higher than that in other areas in Japan,but high incidence may be due to the choice of the control group or the screening effect.Meanwhile,the contribution of 132Te to the thyroid dose and the incidence of thyroid cancer might not be ignored.The continuous monitoring before and after the operation of the nuclear power plant and the health evaculation after the accident are of importance.

Objective To investigate how to prevent deep-vein thrombosis(DVT) after total knee replace-ment(TKR).Methods Deep vein thrombosis in 87 patients after TKR from 2004 to 2007 in the Third Hospital Affiliated to Suzhou University was retrospectively analyzed.Results Amony the 87 patients,13 were found having deep vein thrombosis,5 of 38 using low-molecular-weight beparin after TKR having deep vein thrombosis,6 of 35 cases using aspirin after TKR having deep vein thrombosis,5 of the 10 eases using mechanical preventive measures having deep vein thrombosis.The difference between low-molecular-weight heparin and aspirin group was not statistically significant.Conclusion Using low-molecular-weight heparin before TKR can prevent the occurrence of deep-vein thrombosis.Using epidural anesthesia,and a low-molee-ular-weight heparin drugs or aspirin after TKR can better prevent the formation of deep-vein thrombosis.

Objective To investigate the effects of valsartan on experimental left cardiac function and the vasoactive substance in rats with acute myocardial infarction (AMI).Methods Seventy Wistar rats were randomly divided into 6 group:①Sham groups: including Sham 1(n=5) and Sham 4(n=5).The pericardium of rats in Sham groups were cut open and sutured immediately.The rats were routinely breeded for 1 week and 4 weeks,1.5 mL saline was poured into stomach once a day.②Control groups: AMI 1 (n=10) and AMI 4 (n=10).Anterior descending branches of coronary artery of Wistar rats were ligated to establish models of AMI.The rats with AMI were poured into stomach with 1.5 mL saline once a day after AMI for 1 week and 4 weeks.③Valsartan groups: VAS 1 (n=10) and VAS 4 (n=10).The rats with AMI were poured into stomach with valsartan 10 mg?kg-1 and 1.5 mL saline for 1 week and 4 weeks(once a day).Cardiac function was assayed by arterial cannulatio.Angiotensin Ⅱ(Ang Ⅱ),aldosterone (ALD),endothelin (ET),thromboxane A2(TXA2) and prostacyclin I2 (PGI2) in serum were measured by radioimmunoassay.Results ① Valsartan could evidently improve cardiac function on the 1st and 4th week after experimental AMI.+dp/dtmax and-dp/dtmax were both increased on the 1st and 4th week and more evidently on the 4 week.②Compared with control groups,valsartan decreased the levels of ALD,ET and TXA2 in plasma and increased the levels of AngⅡ and PGI2 in plasma.Conclusion Valsartan could improve left cardiac function on late stage of infarction,the effect improve not only systolic function,but also diastolic function.

[Objective]Through the analysis of 82 cases of spondylolisthesis treated with surgery,the different types of surgical procedures were evaluated.[Method]Patients with spondylolisthesis were divided into 4 groups based on their pathology and different surgical procedures were used accordingly.Group Ⅰ consisted of 18 patients with degenerative spondylolisthesis with back pain(3 cases)and isthmic spondylolisthesis(13 cases)and traumatic spondylolisthesis(2 cases)of Ⅰ degree;They were treated with posterior interlaminar and interspinous process fusion;Group Ⅱ consisted of 31 cases with degenerative spondylolisthesis(2 cases)and isthmic spondylolisthesis(23 patients)and traumatic spondylolisthesis(6 cases)of Ⅰ degree(11 cases)and Ⅱ degree(20 cases);They were treated with reduction of sliding vertebra and posterior interlaminar and interspinous process fusion;Group Ⅲ consisted of 19 cases with degenerative spondylolisthesis(2 cases)and isthmic spondylolistbesis(17 cases)of Ⅰ degree(2 cases),Ⅱ degree(13 cases)and Ⅲ degree(4 cases);They were treated with laminectomy and decompression,with reduction of sliding vertebra and transverse process fusion;Group Ⅳ consisted of 14 cases with isthmic spondylolisthesis of Ⅰ degree(1 case),Ⅱ degree(10 cases)and Ⅲ degree(3 cases);They were treated with laminectomy and decompression,with intervertebral body fusion,with reduction of sliding vertebra and transverse process fusion.[Result]In group Ⅰ,solid fusion were in 15 cases giving a fusion rate of 83%,0.03% rate of reduction,52.69% rate of improvement;In group Ⅱ,solid fusion were in 30 cases giving a fusion rate of 96%,56.20% rate of improvement,83% rate of reduction;In group Ⅲ,fusion rate,reduction rate and improvement rate reached 89%,90%,59.85% respectively;In group Ⅳ,the fusion rate,reduction rate and improvement rate were as high as 100%,92%,61.08% respectively.[Conclusion]Different operative methods have different operative indications.Operative methods differ from different patients.

Objective To evaluate the efficacy of anterolateral decompression and internal fixation on the treatment of old thoracolumbar vertebrae fracture with associated incomplete paraplegia. Method the clinical findings of 26 cases with old thoracolumber vertebrae fracture with associated incomplete paraplegia treated by anterolateral decompression and internal fixing were reviewed retrospectively. Results All cases were followed up for 6 months through 2.5 years. The angle of kyphosis was 23?preoperatively and 6?postoperatively. According to Frankel's grading, there were two cases at grade A, three at grade B, five at grade C, seven at grade D, nine at grade E before operation and one at grade A, three at grade B, four at grade C, six at grade D and 12 at grade E after operation. Conclusion Anterolateral decompression and internal fixation is the treatment of choice for the old thoracolumber vertebrae fracture associated with incomplete paraplegia, especially for spinal deficit generated by displacement of the middle column.

Objective:We estimated the effect of Xinxuetong on the left ventricular function in hyperten-sion. Methods :Transaortic and transmitral flow velocity was studied by pulsed Doppler echo cardiographybefore and after vein administration of Xinxuetong. Results: It was shown that Peak A, IRP andPeak A/Peak E decreased after administration of Xinxuetong. Conclusion:This study suggests that Xinx-uetong can significantly improve the diastolic function and the treatment of hypertension.

Objective To introduce the general international method for estimation of lifetime risk of developed cancer,and to estimate the lifetime risk baseline values of several kinds of cancers related to radiation exposures in China.Methods The risk estimation was based on the data from Chinese Cancer Registry Annual Report (2010) and China Population & Employment Statistics Yearbook (2009),and made according to the method previously published by National Cancer Institute (NCI) in USA.Results The lifetime risk of all cancer in China in 2007 was estimated to be 27.77％,that of lung cancer 5.96％,that of breast cancer for female 3.34％,that of all leukemia 0.14％,that of thyroid cancer 0.37％.The lifetime risks of all cancer were estimated to be 32.74％ for males and 24.73％ for females,and that was 36.47％ for urban residents and 26.79％ for rural people.Conclusions The lifetime risk of all cancer for males in 2007 was about 1.25 times as much as that for females.The value of all cancer for urban residents was about 1.35 times as much as that for rural residents.The lifetime risk of developed cancers in 2007 in China is lower than that in the developed countries,such as Japan.