ABSTRACT:Objective To study the BDNF/TrkB signaling pathway in the epilepsy model of hippocampal neurons and the regulatory effect of on it.Methods The primary hippocampal neurons cultured in vitro for 7 days were randomly divided into seven groups:control group,epilepsy group,control+BDNF group,epilepsy+BDNF group,control + miR-185 ? group,epilepsy + miR-185 ? group,and epilepsy + miR-185 ? + BDNF group.We constructed miR-185 ? lentivirus vector and observed the changes of BDNF/TrkB pathway expression after transfaction of miR-185 ? by immunohistochemistry,patch clamp technique and Western blot technique.Results Compared with the control+BDNF group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly lower in epilepsy+BDNF group (P < 0.05 )and control group (P < 0.001 ).Compared with the epilepsy group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly higher in epilepsy+BDNF group (P <0.05).Compared with the epilepsy+miR-185 ? +BDNF group,the phosphorylated TrkB (pTrkB)/TrkB value was significantly lower in epilepsy + BDNF group and epilepsy + miR-185 ? group (P < 0.001 ).BDNF could promote the signaling conduction and miR-185 ? could remove the inhibition of BDNF/TrkB signaling.Conclusion BDNF can activate the BDNF/TrkB signaling pathway and transfection with miR-185 ? can relieve the inhibition of BDNF/TrkB signaling pathway of epileptic state by up-regulating the expression of TrkB.

Objective To explore the construction and application of cloud-based healthcare information system (CHIS).Methods The process of CHIS employment and implementation for primary-level medical and healthcare institutions was elaborated by the example of a city after the analysis and comparison of mode difference between traditional and cloud construction.Results CHIS integrated regional medical resources and realized integrated application of medical and public healthcare resources,mobile integration of regional operation and continuous innovation in construction mode,and facilitated uniformed management,high-efficiency running and maintenance as well as business development.Conclusion CHIS contributes to enhancing medical inforrnatization in primary institutions,promoting continuous medical innovation and innovating medical informatization mode.

Objective To investigate the mechanism of brain derived neurotrophic factor (BDNF) regulated by differ-ent isoforms of tyrosine kinase receptor B (TrkB) in epileptic hippocampal neurons. Methods Primary hippocampal neu-rons were cultured in vitro for 7 days, and divided into two groups, ALLN (calcineurin inhibitor) group and Anisomycin (trans-lation inhibitor) group. ALLN group included control group, control+BDNF group, epilepsy group, epilepsy+BDNF group, control+ALLN group, epilepsy+ALLN group and epilepsy+ALLN+BDNF group. Anisomycin group was sub-divided into con-trol group, control+BDNF group, epilepsy group, epilepsy+BDNF group, control+Anisomycin group, epilepsy+Anisomycin group and epilepsy+Anisomycin+BDNF group. The immunofluorescent technique was used to identificate the hippocampal neurons. Epileptiform discharges were detected by electrophysiological techniques. Western blot assay was used to deter-mine the protein expression of TrkB and phosphorylated TrkB (p-TrkB) in all cell groups. Results (1) In ALLN group, the gray value of p-TrkB/TrkB was higher in control+BDNF group compared with that of control group, the value was higher in epilepsy+BDNF group than that of epilepsy group but was lower than that of control+BDNF group. The gray value of p-TrkB/TrkB was lower in epilepsy+ALLN+BDNF group than that of epilepsy+BDNF group, but no significant difference compared with that of epilepsy+ALLN group. (2) In Anisomycin group:the gray value of p-TrkB/TrkB was higher in control+BDNF group than that of control group. The gray value of p-TrkB/TrkB was higher in epilepsy+BDNF group than that of epilepsy group, but which was lower than that of control+BDNF group. The gray value of p-TrkB/TrkB was higher in epilepsy+Aniso-mycin+BDNF group than that of epilepsy+BDNF group and epilepsy+Anisomycin group. Conclusion The decreased ex-pression of TrkB.T can improve the inhibition of BDNF/TrkB signaling, and BDNF can activate BDNF/TrkB signal pathway in epileptic hippocampal neurons. The increased TrkB.FL protein level by ALLN can’t improve the inhibition of BDNF/TrkB signal pathway.

Objective To study the effect of miR-204 on BDNF/TrkB signaling and pathogenesis on the neuron model of epilepsy. Methods Primary hippocampal neurons were cultured in vitro for 7 days, and were divided into control group, control+BDNF group, epilepsy group, epilepsy+BDNF group , control+miR204 group, epilepsy+miR204 group and ep-ilepsy+miR204+BDNF group. The epilepsy model of hippocampal neurons was established by being exposed to Mg2+free me-dia for 3 hours. The miR-204 lentivirus vector was constructed. The effect of miR-204 on BDNF/TrkB expression was detect-ed by immunohistochemistry, patch clamp and Western blot technique. Results Compared with the control group, the TrkB phosphorylation level was higher in control+BDNF group. The TrkB phosphorylation level was lower in epilepsy+BDNF group than that of control+BDNF group, but it was higher than that of epilepsy group. The TrkB phosphorylation level was higher in epilepsy+miR204+BDNF group than that of epilepsy+BDNF group and epilepsy+ miR204 group. Conclusion BDNF and miR-204 can improve the inhibitory condition of BDNF/TrkB signaling and may play an important role in alleviat-ing epilepsy disease.

Skull bore device has an important role in neurosurgery.This review is a summary of the development,current research status and advances of skull bore.The electrical operation power device is the emphasis in the review.It is important to develop newly operation power devices for human health.

AIM: To study the differentiation of rat bone mesenchymal stem cells (MSCs) into cardiomyocytes in vitro. METHODS: MSCs were isolated and purified from the bone marrow of rats by density gradient centrifugation and adhering to the plastic culture. The third passage MSCs were treated by 5-azacytidine (5-aza). The induced cells were evaluated by immunocytochemistry staining and RT-PCR analysis. RESULTS: After being induced by 5-aza, some MSCs became bigger and longer. The connection of the cells were formed on day 14.The direction of the cells arraying was similar gradually. The induced cells were stained positively for desmin, ?-actin and troponin I. RT-PCR showed that these cells expressed ? myosin heavy chain. CONCLUSION: 5-aza can induce MSCs to differentiate into cardiomyocytes in vitro.

OBJECTIVE: To study a surgical and repairing method for defects after the resection of basal cell carcinoma of external nose. METHOD: There are 26 cases of basal cell carcinoma that tumors have been resected completely after operation. For defect repairing in those 26 cases, 2 cases adopt direct suture method; 2 cases use skin graft repairing methods; 18 cases employ naselabial skin flap repairing method; 4 cases choose forehead pedicle skin flap repairing methods. RESULT: the wound of all the 26 cases was primary healed. Additionally, skin flap and skin graft were all survived. Follow-up studied in patients 1 to 3 years after the surgery showed that the local scar was not obvious and no tumor recurred or transferred. CONCLUSION Different surgical and repairing methods are performed to obtain a satisfactory results based on the area of defect and its location in nose. Naselabial skin flap is especially an ideal method to repair defects.
Carcinoma, Basal Cell ; surgery ; Cicatrix ; Forehead ; Humans ; Neoplasm Recurrence, Local ; Nose ; Nose Neoplasms ; surgery ; Reconstructive Surgical Procedures ; Skin ; Skin Neoplasms ; surgery ; Skin Transplantation ; Surgical Flaps ; Wound Healing

Objective To evaluate the clinical effect of lung transplantation for pediatric pulmonary artery hypertension (PAH).Methods The recepter 1 and 2 with idiopathic pulmonary artery hypertension (IPAH) were diagnosed by right catheterization.The heart fuction was NYHA IV.The pulmonary artery pressure and mean pulmonary artery pressure were 110/70mmHg and 148/72 mmHg respectively.They underwent bilateral sequential lung transplantation with extracorporeal membrane oxygenation (ECMO) support.During operation,the ECMO support time was 550 min and 450 min and the blood loss was 3000 ml and 1200 ml respectively.The recepter 3 with end-stage congenital ventricular septal defect with Eisenmenger syndrome (ES) who had received open heart exploration underwent right single lung transplantation and ventricular septal defect repair under cardiopulmoanry bypass(CPB).There were ventricular septal defect and bidirectional shunt through UCG assessment The pulmonary artery pressure and mean pulmonary artery pressure were 110/60 mmHg.CPB time was 244 min.The three recepters had the same ABO blood group and the similar body type with the three donors.Results The recepter 1 and 2 was sustained by ECMO after operation for 16 h and 13h respectively.But unstable hemadynamics and acute left heart failure occured on 3rd and 4th day after the operation respectively.We treated them with ventilate support and tracheotomy on 3rd and 6th day respectively.They were also treated with cardiotonic; dieresis and the patients were weaned away from the ventilation on 33rd and 12ed day after the operation respectively.The transplanted lung of the receptor 3 had pneumochysis in the first 3 days.The patient was treated with ventilate support and tracheotomy on 7th day and was weaned from the ventilation on 12ed day after the operation.An acute rejection episode occurred on 14th day.The cordioform and heart function of the three cases improved and especially the receptor 3 had intact repaired of ventricular septal defect.They were discharged from the hospital on 93rd,32ed and 62ed day afer the operation.The heart function all reached NYHA I and the pulmonary artery pressure and mean pulmonary artery pressure was reduced to 54/32 mmHg,60/36 mmHg and 53/39 mmHg respectively.The three cases have been followed up for 41 months,21 months,and 82 months.They are having an excellent quality life.Conclusion Lung transplantation is effective to improve the quality of life for end-stage pediatric pulmonary artery hypertension even with slight right ventricular dysfunction with satisfying short-term results.

Objective To explore the effect of whole renal perfusion imaging removal of arterial phase data on perfusion parameters of renal clear cell carcinoma using Revolution CT.Methods Perfusion imaging with Revolution CT was retrospectively analyzed in 10 patients with pathologically proven clear cell renal cell carcinoma.The z-direction coverage model was used in perfusion imaging,and the images were analyzed with CT Perfusion 4D software.All images were analyzed twice.All 23 phases data was included in group A and only 16 phases except arterial data (9-15 phases) were selected in group B.The abdominal aorta on the level of right hilus was chosen to be the input artery,and the perfusion parameter maps were obtained,including blood flow (BF),blood volume (BV),mean transit time (MTT),permeability of surface (PS).Every perfusion parameters of lesions and contralateral normal cortex,lesions and normal cortex in both groups were compared.Results The BF and PS of lesions were lower than those of normal cortex in both groups (both P＜0.05).There was no statistical difference in BV and MTT between lesions and normal cortex in both groups (all P＞0.05).There was no statistical difference in all perfusion parameters of renal clear cell carcinoma between group A and group B (all P＞0.05).The difference of BF in normal cortex between the two groups was statistically significant (P 0.009),and the difference of the PS,BV,MTT had no statistically significant (all P＞0.05).Conclusion When the duration time of renal CTP is 600 s,there is no difference between including and excluding arterial phase in all perfusion parameters of renal clear cell carcinoma.

Objective To explore the relationship between blood glucose level and blood pressure variability in hypertensive patients. Methods A total of 125 hypertensive patients hospitalized in the department of cardiology in our hospital during May 2015 to October 2016 were retrospectively analyzed. Patients were divided into hypertension with diabetes mellitus group (n=59) and hypertension without diabetes mellitus groups (n=66). Data of blood pressure, blood pressure variability and blood glucose levels were analyzed in the two groups. Results (1) Hyperlipidemia, low density lipoprotein and cholesterol levels were significantly lower in the hypertension with diabetes mellitus group than those of hypertension without diabetes mellitus group. Level of glycosylated hemoglobin (HbA1c), 24 h diastolic pressure variability coefficient (24 hDBPCV), daytime systolic blood pressure variability coefficient (dSBPCV), and daytime diastolic pressure variability coefficient (dDBPCV) were significantly higher in the hypertension with diabetes mellitus group than those of hypertension without diabetes mellitus group (P<0.05). (2) Spearman correlation analysis showed that hypertension with diabetes mellitus was positively correlated with 24 hDBPCV, dSBPCV and dDBPCV. (3) ROC curves of HbA1c for diagnosis of non-dipper blood pressure in hypertensive patients showed that the cut-off value of HbA1c was 5.85%and the area under curve was 0.692 (P<0.05). The sensitivity was 71.1% and the specificity was 63.7%. Conclusion The present results demonstrate that blood pressure variability is increased in hypertension patients with higher blood glucose. HbA 1c level has potential clinical value for diagnosis of non-dipper blood pressure in hypertensive patients.