The potassium ion channels have been found to be the most widely distributed proteins,with the largest variety of subtypes and the most complicated functions so far.The potassium ion channels play important role in cell physiological activities.As one member of potassium ion channel family,TASK-3 not only transports ions,maintains cell membrane potentials,transfers intercellular signals,but also closely relates to numerous diseases,including tumors.

Objective: To investigate the effects of Interlukin- 4(IL-4) on the invasiveness and the expression of several cell surface antigens related to invasive and metastatic potentials of human hepatocellular carcinoma QGY-7701 cell line in vitro. Methods: QGY-7701 cells were incubated with high concentration of IL-4 or low concentration of IL-4 in different time. The expression of ICAM-1, CD44 and HLA-I was determined by fluorescence-activated cell sorter (FACS) analysis, the tumor cell binding affinity to extracellular matrix (ECM) components was measured by cell attachment assay, the degree of homotypic aggregation was quantified by cell aggregation assay. Results: IL-4 pretreatment can enhance the expression of ICAM-1 and HLA-I, suppress the expression of CD44 on hepatocellular carcinoma cell line and decrease the binding affinity to ECM components and the degree of homotypic aggregation of hepatocellular carcinoma cells. Conclusoin: IL-4 can inhibit the invasive and metastatic potentials of hepatocellular carcinoma cells.

Objective To investigate the imaging and clinical characteristics of reversible posterior leukoencephalopathy syndrome (RPLS). Method The imaging and clinical data of 6 patients with RPLS were analyzed retrospectively. Results CT and MRI examination in 6 patients revealed symmetry white matter lesions of occipital lobe in 4 patients, widely white matter edema of fronto-parietal subcortieal white matter in 4 patients, mesencephal and thalamencephal involved in 1 patient, caudate nucleus involved in 1patient. Venous sinus thrombosis was not found in 2 patients of pregnancy-induced hypertension syndrome with magnetic resonance intravenous angiography.All patients were given active treatment,including controlling blood pressure and seizure disorder,dehydration and supporting therapy.The symptom of 5 patients disappeared. One patient left with hemiparesis of right body.Nobody died. Condusion Diagnosis of RPLS isn't difficult as long as clinical history,imaging characteristics and clinical tetrad in the patients of hyperten-sion,eclamptism or renal inadequacy is combined to consider.

0.05)indicating no significant loss of correction.The length of the growth of instrumented spine was 13.3 mm.No sever complications in the series. Conclusion The PRSS which dispenses without bony fusion is a safe and an effective instrumen for management of juvenile scoliosis.It provides and maintains desirable scoliosis correction in one stage procedure,while allowing spinal growth.

BACKGROUND: α-lipoic acid is named as “nature antioxidant” and “mitochondrial nutrition”. But it is unclear whether α-lipoic acid can be used to protect skeletal muscle with chronic hypoxia exposure, as wel as the relative mechanism. OBJECTIVE: To observe the effect of α-lipoic acid on the antioxidant enzymes and oxidative stress in rat skeletal muscle with chronic hypoxia exposure, and to investigate the relative signaling pathway of α-lipoic acid. METHODS: Thirty-six Sprague Dawley rats were randomly divided into three groups: normoxia control group, hypoxia control group, and hypoxia+α-lipoic acid group. Rats in the hypoxia control group were subjected to hypoxia exposure in normobaric hypoxic tent with 11.3% oxygen concentration. Rats in the hypoxia+α-lipoic acid group were induced by adding α-lipoic acid (0.25%) in the normal diet. Al the interventions were lasted for 4 weeks. RESULTS AND CONCLUSION: α-lipoic acid in hypoxia could markedly enhance the mitochondrial Sirtuin-3 expression, improve the mitochondrial adenosine triphosphate synthesis activity and membrane potential, up-regulate the mitochondrial state 3 respiratory rate, respiratory control ratio and ratio of phosphorus to oxygen, down-regulate the mitochondrial state 4 respiratory rate and promote and up-regulate the activity of mitochondrial antioxidant enzymes such as manganese superoxide dismutase, glutathione peroxidase and catalase, thus inhibiting mitochondrial H2O2 generation rate and reducing mitochondrial malondialdehyde level. The results indicated that α-lipoic acid could improve the efficiency of energy metabolism of chronic hypoxia skeletal muscle mitochondria and inhibit reactive oxygen generation, and it could inhibit the oxidative stress through improving antioxidant enzyme activity of mitochondria. The protection mechanism of α-lipoic acid on hypoxia skeletal muscle mitochondria may be related to the increasing of mitochondrial state 3 respiratory rate.

Objective To study the consistency in the diagnosis of preoperative TNM rectal cancer staging using high resolution magnetic resonance imaging (MRI) and transrectal ultrasound (TRUS) combined with carcinoembryonic antigen (CEA) and postoperative pathological TNM.Methods 156 cases pathologically proven were retrospectively analyzed and divided into 4 groups including preoperative MRI group (39 cases),TRUS group (39 cases),MRI and TRUS group (39 cases),MRI and TRUS combined with CEA group (39 cases).The differences between preoperative T,N staging and postoperative pathologic T,N staging were analyzed.Results There were statistically significant differences in the diagnosis of preoperative T and postoperative pathological T in 4 groups (T: Kappa =0.685,P =0.000; N: Kappa =0.544,P =0.000),but there were no significant differences in preoperative N and postoperative pathological N staging in preoperative MRI group,TRUS group,MRI and TRUS group (Kappa =0.142,P =0.329; Kappa =0.154,P =0.645; Kappa =0.154,P=0.229),and significant difference was observed in MRI and TRUS combined with CEA group (Kappa =0.544,P =0.000).There were no significant differences in the accuracy of T staging among the 4 groups (x2 =0.326,P =0.574; x2 =0.562,P =0.719; x2 =0.287,P =0.986),but significant difference in the accuracy of N staging were showed among the 4 groups (x2 =4.643,P =0.026; x2 =6.643,P =0.026; x2 =5.243,P =0.019).Conclusion Preoperative evaluation by the MRI add TRUS combined with CEA can improve the accuracy of preoperative staging,which can provide more reliable basis for decision-making and improve the coincidence rate of operative procedures in line with the estimate.It also provides the basis fur the accurate preoperative diagnosis and individualized treatment.

Malignant tumors are highly heterogeneous in terms of molecular phenotypes such that personalized therapy will be-come the standard for tumor therapy. Molecular classifications of cancer based on differences in biological behavior are important for selecting treatment strategies and prognostication. The unique optical and chemical properties of quantum dots have been widely used in biomedical applications such as tumor diagnosis, monitoring, pathogenesis, treatment, molecular pathology, and heterogeneity based on biological markers. In this study, we discuss the application of quantum dot-based nanotechnology and the molecular classification of cancer in personalized oncology.

Objective To analysis the difference of lymph node cleaning and operative complication rate between thoracoscope surgery and routine thoracotomy on patients with thoracic segment esophageal cancer.Methods A summary of 62 patients with thoracic segment esophageal cancer in Xiaogan Hospital Affiliated to Wuhan University of Science and Technology from August 2012 to August 2014,who were carried with thoracoscope surgery,were randomly chosed and designed as the thoracosc0Pe group,and 62 patients with thoracic segment esophageal cancer over the same period,carried out with routine thoracotomy,were designed as the control group.All the clinical data of the two groups were collected.The total of thoracic lymph node cleaned and the group of thoracic lymph node cleaned were compared between the two groups.The operation time,intraoperative blood loss,chest tube placement time and postoperative hospital duration were collected and compared.All the patients were followed up at least for one year.The incidence of postoperative complications such as pulmonary infection,pneumothorax,atelectasis,recurrent laryngeal nerve injury and anastomotic leakage in the follow-up period were compared.The follow-up time,mortality and recurrence rate were compared.Results The total of thoracic lymph node cleaned(13.36±3.28) and the group of thoracic lymph node cleaned(3.35±0.84) in the thoracoscope group were lower then these of the control group ((14.22± 2.78) and (3.58±0.75)),but with no statistical difference (t =1.57,1.61,P＞ 0.05).The operation time of the thoracoscope group((314.63±38.72) min) were higher then that of the control((217.46±41.54) min),and the intraoperative blood loss ((205.73 ± 114.38) ml),chest tube placement time ((6.83 ± 1.92) d) and postoperative hospital duration((18.47±5.36) d) of the thoracoscope group were remarkably lower then these of the control ((345.72 ±175.62) m1,(10.04±2.41) d,(22.65±6.84) d,t=13.47,5.26,8.20,3.79,P＜0.05).The incidence of pulmonary infection (4.8％ (3/62)) and atelectasis (1.6％ (1/62)) of the thoracoscope group,were evidently lower then these of the control (17.7％ (11/62),1.3％ (7/62),x2 =5.15,4.81,P＜0.05).There was no significant difference in mortality and recurrence ratebetween the two groups during the follow-up period (3.2％ (2/62) vs.8.1％ (5/62),11.3％ (7/62) vs.14.5％ (9/62),x2 =1.36,0.29,P＞0.05).Conclusion There are no significant difference inlymph node cleaning between thoracoscope surgery and routine thoracotomy on patients with thoracic segment esophageal cancer,but thoracoscope surgery can shorten the length of hospital duration,reduce the intraoperative blood loss,chest tube placement time and postoperative complications.So the thoracoscope surgery is a safe and feasible operation for patients with thoracic segment esophageal cancer.

BACKGROUND:Bone loss to different degrees may appear within 1 year after hip replacement in the femoral or acetabular sides, and severely affect long-term stability of the prosthesis and bone strength. Thus, to reduce bone loss around the prosthesis stem after total hip replacement is significant to prolong the use time of the prosthesis and to prevent fractures surrounding the prosthesis.
OBJECTIVE:To observe the preventive effect of zoledronic acid on bone loss surrounding the prosthesis stem after hip replacement.
METHODS:A total of 80 patients after total hip replacement in the People’s Hospital of Shenxian from February 2011 to September 2014 were enrol ed in this study. They were divided into two groups (n=40). At 4 days after replacement, patients in the observation group received treatment with zoledronic acid, but those in the control group did not give zoledronic acid. The rest medication was identical between the two groups. Bone mineral density in the hip was measured before replacement and at 1 year after replacement in both groups. Serum calcium and
phosphorus levels and alkaline phosphatase activities were observed before replacement, 3 days and 1 year after medication in the two groups. Adverse reaction during medication was recorded in the observation group.
RESULTS AND CONCLUSION:The average bone mineral density was significantly decreased in both groups at 1 year after replacement, and significant differences were found as compared with before replacement (P<0.05). The average bone mineral density was significantly higher in the observation group than in the control group at 1 year after
replacement (P<0.05). Calcium and phosphorus levels were significantly diminished at 3 days after medication as compared with that before replacement (P<0.05). Calcium and phosphorus levels maintained at the level before replacement at 1 year after medication. Alkaline phosphatase activities were slightly reduced within a short time after replacement in both groups, but no significant difference was found as compared with before replacement (P>0.05). Alkaline phosphatase activities were low in the observation group at 1 year after medication, and significant difference was detected as compared with the control group and that before replacement (P<0.05). No significant difference in alkaline phosphatase activities was detectable in the control group between 1-year post medication and pre-replacement (P>0.05). Within two or three days after medication, nine patients suffered from varying degrees of muscle aches and fever in the observation group, and above symptoms were lessened after taking acetaminophen. These results verify that after total hip replacement, zoledronic acid injection can effectively prevent bone loss around the prosthesis in early stage after replacement, but fever symptoms may occur within a week after replacement. Thus, it is recommended that zoledronic acid injection can be given at 1 week after replacement. If fever and other symptoms appear, acetaminophen can be given.

Objective: To observe the clinical efficacy of combined electroacupuncture and nerve growth factor (NGF) injection at acupoints in the treatment of common fibular nerve paralysis and provide evidences for integrative Chinese & western medicine against diabetic peripheral neuropathy (DPN). Methods: Forty subjects were randomized into two groups and NGF injection; and control group was given herbal suffocation, oral Dibazol and compound vitamin B and Mecobalamin Injection. The clinical symptoms and nerve conduction velocity were observed and compared. Results: The cure rate was higher in treatment group than in control group (P<0.05); after treatment, the nerve conduction velocity was improved in both groups (P<0.01), with a significant improvement in treatment group than in control group (P<0.01). Conclusion: Combined electro-acupuncture and NGF injection at acupoints is quite effective in the treatment of common fibular nerve paralysis.