Objective To explore the effect of let-7c-1 on the learning and memory of PTZ-induced epileptic rats and its relevant mechanism.Methods A model of temporal lobe epilepsy (TLE) was induced via PTZ kindling in SD male rats.The epileptic rats were divided into epilepsy group,agomir-control group,let-7c-1 agomir group (12 rats for each).Twelve rats were served as a negative control group.The behavior and the expression levesl of let-7c-1,Bcl-2 protein and Caspase3 were evaluated at 28 days following PTZ.Results Compared to the negative group,the escape latency of epilepsy group was prolonged and the crossing times as well as the quadrant total distance in the target were reduced (P＜0.05).However,those parameters were not significantly different between the epilepsy group and the agmoir-control group (P＞0.05).Compared to the agmoir-control group,the escape latency of let-7c-1 agomir group was prolonged and the crossing times as well as the quadrant total distance in the target were reduced (P＜ 0.05).The expression levels of let-7c-1 and let-7c-1 were 1.35±0.32 in agmoir-control group and 62.53±21.01 in agomir group (F=50.97,P＜0.05).The expression levels of let-7c-1 were higher in let-7c-1 agomir group than in other groups (P＜0.05).Compared to the negative group,the expressions of Bcl-2 protein in other groups were decreased (P＜0.05) and the Caspase3 protein were increased (P＜0.05).Compared to the agomir-control group,the expression of Bcl-2 protein was significantly decreased and the expression of Caspase3 protein was significantly increased in let-7c-1 agomir group (P＜0.05).Conclusions The present study shows that let-7c-1 may impair the learning and memory of PTZ-induced epileptic rats through decreasing the Bcl-2 protein and increasing Caspase3 protein in the hippocampus.

Objective To investigate the vascular architecture of subdermal vascular network in antebrachial region, and provide anatomic basis for designing the subdermal vascular network skin flap in the antebrachial region. Methods Anatomical observation and measurement of the blood supply, arterial architecture and venous return of the subdermal vascular network skin flap in anterior antebrachial region were performed on 8 fresh adult specimens perfused with latex and black ink. Results It was found that 4～15 or more fine perforators derived from each the terminal end of the brachial artery and radial or ulnar arteries in anterior antebrachial region, and their diameters were between 0.2～0.9 mm. The anatomical studies showed that the fasciocutaneous perforators supplying the in anterior antebrachial region were found to form rich "spider nevus"arterial networks on the subdermal layer. Moreover, the subdermal vascular networks were also found to give off fine arterial branches into papillary and superficial fascia layers, respectively, to form papillary vascular plexus and superficial fascia vascular network, and all of the vascular networks were anastomosed densely each other. The subdermal venous networks were also anastomosized in plexus and drained into the deep vein. Conclusion Either a random or an axial subdermal vascular network skin flap of the anterior arm can be designed according to the need of recipient defect, and the latter may also be designed as a transfer or a free subdermal vascular network skin flap according to the size of the arterial diameter in the pedicle of skin flap.

10.3969/j.issn.2095-4344.2013.26.019

To study the antidepressant effects of piperine in chronic unpredictable mild stress (CUMS) rats and to explore the underlying mechanisms in the hypothalamic-pituitary-adrenal (HPA) axis.

Objective To evaluate the guiding effect of CT software to reduce the postoperative syndrome and surgery risk in patients with sinus disease performed the functional endoscopic sinus surgery (FESS). Methods Fifty patients of accessory sinus disease were scanned by spinal CT, and then three dimensions reconstruction made in workstation. Under center of ethmoid sinus ,the five groups of anatomy data measured were obtained , used to guide surgery and contrasted with result of no used to guide surgery in 68 patients in FESS. The data were performed the statistical management and compared with results of FESS. Results Under guided by five groups of anatomy data measured ,the postoperative syndrome was reduced by 16.0 percent; the curative effect went up by 15.0 percent; the pay for hospital was reduced 31.0 percent and the recurrence rate was reduced 8.6 percent. Conclusion Used the technic in FESS, the surgery risk, the recurrence rate and pay for hospital are reduced, but the curative effect go up. The technic is much adapt to be used in village and towns hospital where there aren′t navigation equipment.

Objective:To construct a nomogram model for spontaneous respiratory arrest prediction in nerocritical patients within 72 hours after brain injury for early identification of potential brain death organ donors.Methods:From October 2017 to May 2019, 127 hospitalized neurocritical patients (including traumatic brain injury and spontaneous cerebral hemorrhage) were prospectively enrolled and the parameters related to brain injury were dynamically recorded. Among them, the data from October 1, 2017 to May 31, 2018 were used for constructing the training set and the data from June 1, 2018 to January 31, 2019 for constructing the validation set. The occurrence of spontaneous respiratory arrest within 72 h after brain injury was regarded as the time interest point and grouping factor. The factors associated with spontaneous respiratory arrest were screened by univariate and multivariate analyses. Then the Nomogarm prediction model was developed and tested in the validation set.Results:Sixty-five patients entered the training set and another 62 cases were enrolled into the validation set. In training set, univariate and multivariate analyses indicated that midline shift ( OR=4.56, 95%CI: 1.87~19.21), absent of ambient cistern ( OR=4.83, 95%CI: 1.35~16.34), cough reflex ( OR=3.82, 95%CI: 1.15~12.42), intraventricular hemorrhage ( OR=3.16, 95%CI: 1.53~14.52) and serum Na + <125 mmol/L ( OR=3.06, 95%CI: 1.53~13.44) were associated with spontaneous respiratory within 72 h. In both sets, the predicted C index of spontaneous respiratory arrest rate within 72 h was 0.81 (95%CI: 0.76~0.85) and 0.80 (95%CI 0.75~0.83) respectively. Further statistical analysis implied that 140, 160 and 170 points were the dangerous dividing points and these three points were 30.1%, 65.6% and 93.4% associated with spontaneous respiratory arrest within 72 h respectively. Conclusions:Nomogram model based upon assessment parameters of brain injury may predict the time of spontaneous respiratory arrest in neurocritical patients. It can be used for early identification of potential brain death organ donors. The results require further external data validation.

BACKGROUND: Recent researches demonstrate that transplantation of bone marrow stem cells in the area of myocardial infarction can directionally differentiate into myocardial cells having normal physiological function and can promote newborn vascularization so as to repair infarction myocardium and improve injured cardiac function.OBJECTIVE: To observe short-term clinical effect of autologous bone marrow stem cell transplantation (ABMSCT) in percutaneous coronary artery on the treatment of acute myocardial infarction.DESIGN: Self-control study.SETTING: Department of Cardiology, Xiangtan Central Hospital.PARTICIPANTS: A total of 27 patients with acute myocardial infarction, including 16 males and 11 females, were selected from Department of Cardiology, Xiangtan Central Hospital from June 2004 to December 2006. Their ages coronary artery was finished after onset emergently; in addition, blood flow of infraction related vessels recovered to grade TIMI3. All patients provided the confirmed consent.METHODS: Operative procedure: All patients were performed with emergently interventional therapy of coronary artery after onset of acute myocardial infarction. One week later, percutaneous cavity tube technique was used to establish infarction related arterial pathway, and guiding filament was used to send micro-perfusion tube into stents. And then,separated bone marrow stem cell suspension was poured through central cavity of micro-tube into the distal end of infarction vessels. Operative evaluation: Dynamic electrocardiogram was evaluated for 24 hours before and after transplantation; in addition, left ventricular ejection fraction and myocardial perfusion defect scores were detected before and at 6 and 12 months after transplantation; otherwise, recovery state and complication were observed in follow up at 6 and 12 months after operation.defect scores: At 6 and 12 months after operation, left ventricular ejection fraction was higher than that before transplantation, and there was significant difference before and after transplantation (P＜0.05). While, myocardial perfusion defect scores were lower than those before transplantation, and there was significant difference before and arrhythmia were not found out, cardiac arrhythmia was not increased, and cardiac arrhythmia combining with malignancy not have any complications and in-stent constriction after operation.

Objective To analyzed the expression and clinical characteristics of CD 20 marker in children with B-lineage acute lymphoblastic leukemia ( B-ALL) and evaluated its medical significance in assessing the prognosis of disease.Methods From November 2008 to July 2012,125 cases of children with B-lineage acute lymphoblastic leukemia were collected from Shanghai Children ′s Hospital,including 79 males and 46 females, aged between 2 months to 14 years old.Flow cytometry based immunophenotyping and Minimal Residual Disease ( MRD) screening were applied to these children when newly diagnosed ,and MRD monitoring was again carried out after 35 days of induction remission therapy to those bears the MRD markers.These 125 patients were divided into CD20-positive group and CD20-negative group, and the corresponding clinical characteristics ,stage of immunophenotype ,MRD,risk stratification,and overall survival rates were recorded and compared.Data were statistically analyzed by using SPSS 16.0 software including χ2 test,t-test,standard deviation test and survival test.Results A total of 125 children with ALL-B,the group of CD20-positive were 48 while CD20-negative groups were 77,with a median age of 6 years old,and the median follow-up time of 30 months.Multivariate Cox regression Analysis showed that there was no clear correlation between CD20 expression level with age ,sex,white blood cell count at diagnosis ,fusion-gene,the stage of immunophenotype as well as risk stratification.The MRD-positive incidence at 35 days in the CD20 positive group was 35.4%,much higher than that of the CD20-negative group (16.9%),which is statistical significance (χ2 =5.236,P<0.05),while the overall survival rate (OS) for the CD20 positive group is 75.0%,much lower than that of the CD20 negative group (84.4%,χ2 =4.160,P<0.05).Conclusions CD20 positive expression level in children with B-lineage acute lymphoblastic leukemia at diagnosis demonstrates negative correlation with the overall survival rate of the patient ,indicating its usefulness as an additional joint marker for the current regimens to incorporate CD 20-targeted monoclonal therapy.

Objective To explore the status of nuclear power plant operators in mental health and its correlation with emotional stability,liveliness,anxiety and urgency.Methods 255 male operators were randomly selected from three nuclear power bases,meanwhile 61 undergraduates were used as control group.The mental health and neurobehavioral evaluation system of Chinese nuclear power plant operators was developed by Second Affiliated Hospital of Soochow University,which was used to assess mental health of the subjects.The scores of mental health personality factors were recorded,together with four main personality factors including emotional stability,liveliness,anxiety and urgency.Results The score of lie was lower than 8 which showed all inspected groups were normal. 1.57％ (4/255) operators had psychological disorders,3.92％ ( 10/255 ) had poor mental health,27.84％ ( 71/255 ) had general mental health,66.7％ (170/255) had excellent mental health,whereas 9.84％ (6/61)for control group had psychological disorders.Obvious difference was observed in the final scores between the nuclear power plant operators and control group.The former gained higher scores on mental health,emotional stability,and lower scores on anxiety and urgency ( t =3.437,4.423,- 2.493,- 2.093,P ＜ 0.05 ).Both groups aged over 27 years and with length of service over 5 years were awarded higher scores on mental health,emotional stability( t =2.585,2.349 ; t =2.606,2.947,P ＜ 0.05 ),lower scores on anxiety and urgency (t =- 3.407,- 2.138 ; t =- 2.941,- 2.256,P ＜ 0.05).The mental health was positively correlated with emotional stability and liveliness ( r =0.721,0.650,P ＜ 0.05),but negatively correlated with anxiety and urgency(r =- 0.809,- 0.693,P ＜ 0.05 ).Conclusions The majority of nuclear power plant operators had excellent psychological quality,but some factors should be paid more attention,such as different ages and length of service time.

Objective To explore the correlation of the anti-stress ability of nuclear power plant operators with their heart rate,blood pressure and mental health.Methods A total of 136 male nuclear power plant operators received the continuous performance test (CPT) and mental health test (MHT),while 37 male senior students were used as the control group.Heart rate and blood pressure were recorded before and after the test.The nuclear power plant operators were divided to high score group and low score group by CPT scores.The correlation of the anti-stress ability and blood pressure,heart rate and their mental health was analyzedd.Results The scores of CPT and MHT test with the operators were significantly higher than those of the control group(t =- 1.25,6.25,P ＜ 0.05).After the test,the heart rate,systolic pressure and diastolic pressure of the operators were all significantly lower than those of the control group ( t =- 2.07,3.28,2.74,P ＜ 0.05 ).The CPT score of the high score group was lower in the heart rate,systolic pressure and diastolic pressure than the low score group(t=-3.15, -2.78, -2.54,P ＜0.05),while the scores of CPT and MHT were better(t =0.63,6.90,P ＜ 0.05).CPT scores were negatively correlated with the increasing range of the heart rate,systolic pressure and diastolic pressure( r =- 0.69,- 0.94,and - 0.62,P ＜ 0.05 ),and positively correlated with the MHT scores ( r =0.54,P ＜ 0.05 ).Conclusions To a certain extent,CPT and MHT test can reflect the anti-stress ability and be used as one of the bases to select nuclear power plant operators and to assess their competence.