BACKGROUND: Vagus nerve stimulation (VNS) is a neurophysiological therapy (NPT) of refractory epilepsy, which can control the seizure by stimulating the vagus nerve stem in cervical part.OBJECTIVE: To study the effect of intermittent left-side VNS on seizure of epileptic animals, and provide theoretic basis for the interaction of somatic information and that of internal organs.DESIGN: Observation study.SETTING: Department of Neurobiology, Capital University of Medical Science.MATERIALS: The experiment was performed in the Laboratory of Electrophysiology in Department of Neurobiology, Capital University of Medical Science from March 2000 to September 2002. Thirty-four healthy adult SD rats and 8 rabbits, weighting (220-250) g and (2.2-2.5) kg respectively were selected.METHODS: ①Ten rats were intramuscularly injected with (150 000-160 000) U of penicillin (PCN). VNS effects on epileptiform activities of rats were studied by observing the changes in electrocorticogram (ECoG)and behavior of rats before and after VNS.②(0.24-0.48) mg of PCN was injected into the hippocampus of another 8 rabbits to induce epilepsy, and VNS effects on ECoG of epileptic rats were observed. ③Seizures of 16 rats were induced by Kainic acid, and changes in discharge activity of hippocampal neuron, ECoG and behavior of epileptic rats were observed after VNS. ④Seizures of 8 rabbits were induced by cortical injection of strychnine with microinjector, and VNS effects on ECoG of rabbits with epilepsy induced by acute cortical injury were observed.MAIN OUTCOME MEASURES: ①VNS effects on seizure of rats with epilepsy induced by PCN. ②VNS effects on seizure of rats with epilepsy induced by Kainic acid. ③VNS effects on epileptiform ECoG of rabbits with epilepsy induced by strychnine.RESULTS: A total of 34 rats and 8 rabbits were involved in the analysis of results. VNS could remarkably suppress the seizure of epileptic animals,and epileptiform ECoG, epileptiform discharges of hippocampal neuron and behavior significantly changed with the total effective rate greater than 50%. The total effective rate of VNS before seizure was greater than 80%.In epilepsy group indoeed by intramuscular injection of PCN, ECoG and behavior were markedlly aneliorated respectively for 40% and 50% of rats.In epilepsy group induced by injection of PCN in hippocampus, the ECoG was siguificantly ameliorated in 50% rats. In epileptic rabbit group induced by partial injection of strychnine via cerebral cortex, the epilepti form wave iu ECoG was controlled by VNS in 50 % of animals.CONCLUSION: VNS can effectively suppress seizure of epileptic animals. The antiepileptic effect of VNS is associated with cerebral cortical aud hippcampal neurons. Somatic epileptiform activity could be effectively inhibited by the integration of visceral afferent information in cortical and hippocampal parts.

Objective　To study the roles of P-selectin and nitric oxide (NO) on the etiology of pregnancy induced hypertension (PIH). Methods　The levels of plasma P-selectin and nitrite and nitrate (NO2-/NO3-) were determined in 36 patients with PIH. The data were compared with those of normal pregnant group (n=18) and healthy non-pregnant group (n=19). The levels of plasma P-selectin were measured by means of enzyme-linked immunosorbent assay (ELISA) and levels of plasma NO2-/NO3- were measured by Griess reaction after the nitrate was reduced by a Cadmium-reduction method. Results　 The results showed: （1）The level of P-selectin in the normal pregnant group (48.92±15.16) μg/L was higher than that in non-pregnant group ［(30.16±8.42) μg/L, P<0.001］. There was no significantly statistical difference in the levels of P-selectin between the normal pregnant group and the mild PIH group (P>0.05). The levels of P-selectin in the moderate and severe PIH group (70.11±17.65) μg/L were higher than those in the mild PIH group ［(47.33±17.95) μg/L, P<0.01］ and the normal pregnant group (P<0.001). （2）The concentration of NO2-/NO3- in normal pregnant group was higher than that in non-pregnant group (P<0.01). The concentration of NO2-/NO3- in PIH group were lower than was in normal pregnant group (P<0.001). The NO2-/NO3- in mild group was lower than that in normal pregnant group (P<0.001). The Plasma concentration of NO2-/NO3- in moderate and severe PIH group was lower than that of mild group (P<0.05). （3） There was a negative correlation between the plasma concentration of P-selectin and NO2-/NO3- in the PIH group. Conclusion　The changes of plasma levels of P-selectin and NO are related to the occurrence and development of PIH.

Objective To compare the clinical effect of povidone-iedine cream plus vagina scrubbing with traditional preoperative vaginal preparation method in order to seek a more safe,effective,convenient and efficient method to prepare the vagina.Methods 100 cases of married patients undergoing elective gynecological surgery were divided into the observation group and the control group with 50 patients in each.The observation group adopted povidone-iodine cream plus vagina scrubbing and the control group used traditional method.Two groups were prepared in the vagina before and after taking cervical swabs for bacterial culture to compare the positive rate of bacterial culture.Results Intra-group comparison of vaginal bacterial culture before and after vaginal preparation was significantly different,but no statistical significance was seen between the two groups.Conclusions Vagina preparation with povidoneiodine cream plus vagina scrubbing can not only reduce the workload of nurses but also improve patient comfort degree.

Objective To investigate the clinical effect of calcium hydroxide in the treatment of dental pulp diseases. Methods The control group in the treatment of the conventional mummification agent, the study group used calcium hydroxide in the treatment process, compared the two groups of clinical curative effect, dental pulp disease patients the incidence of adverse reactions. Results The study group of dental pulp disease in patients with clinical total efficiency up to 92.00％, the control group of dental pulp disease in patients with clinical total effective rate was only 72.00％, the difference between the two groups was statistically significant(P<0.05).After the treatment of different measures, the incidence of adverse reactions in the study group (8.00％) was significantly lower than that in the control group(28.00％), the difference between the two groups was statistically significant (P<0.05). Conclusion The use of calcium hydroxide in the treatment of patients with dental pulp disease can significantly improve the clinical efficacy, and help to protect the quality of life of patients, physical and mental health.

Objective To analyze the clinical characteristics of single renal transplantation from infant kidney donation after death (DCD) and summarize the nursing measures for nursing the infants. Method The clinical data of 36 cases of single kidney transplantation from 18 infant donors from January 2014 to June 2016 in our centre were reviewed and summarize the nursing experience. Results Pulmonary infection occurred in 3 cases, incision infection occurred in 2 cases and graft vascular complication occurred in 2 cases. Urinary fistula occurred in 2 cases, ureteral obstruction occurred in 1 case, delayed graft function (DGF) occurred in 16. Postoperative follow-ups for 1 to 20 months showed all the grafted kidneys survived and 34 of them were well recovery in view of renal function of grafted kidney and the rest two had the grafted kidneys resected because of arterial and venous thrombus in them. Conclusions The renal transplantation from infant DCD is difficult. The nurses should handle postoperative care to the patients, paying attention to the complications. On the other hand, intra-and post-operative monitoring of blood pressure, control of input and output and early observation of complications and treatment is of value for the improvement of survival rate of grafted kidneys, reduction of complication incidence and propelled recovery of the patients.

The gene encoding the VP28 envelope protein of White spot syndrome virus (WSSV)was cloned into expression vector pET-30a and transformed into the Escherichia coli strain BL21.After induction,the recombinant VP28 (rVP28) protein was purified and then used to immunize Balb/c mice for monoclonal antibody (MAb) production.It was observed by immuno-electron microscopy the MAbs specific to rVP28 could recognize native VP28 target epitopes of WSSV and dot-blot analysis was used to detect natural WSSV infection.Competitive PCR showed that the viral level was approximately 104 copies/mg tissue in the dilution of gill homogenate of WSSV-infected crayfish at the detection limit of dot-blot assay.Our results suggest that dot-blot analysis with anti-rVP28 MAb could rapidly and sensitively detect WSSV at the early stages of WSSV infection.

BACKGROUND:Non-operation therapies are commonly used in the treatment of cervical spondylopathy. All of these therapies involve biological mechanics; especially for traction and massage of the cervical vertebrae, they have an obvious property of biological mechanics in rehabilitation of the cervical vertebrae. OBJECTIVE: To probe into the biological mechanics of different rehabilitation methods through comparing the intervention effects between traction and traction combined with massage on cervical spondylopathy.DESIGN: A case-controlled observation. SETTING: Rehabilitation Center of West China Hospital of Sichuan University. PARTICIPANTS: Among the patients who came to the Rehabilitation Center of West China Hospital of Sichuan University between October 2002 and July 2003 for the treatment of spondylopathy, totally 52 patientsmet the criteria for non-operation therapy. They participated in the experiment voluntarily and were randomly divided into 2 groups: the experimental group and the control group, with 26 patients for each. METHODS: ①The patients in the experimental group were treated by traction in combination with massage. Traction was performed once a day,30 minutes each time, 5 times as a course of treatment, and one or two courses of treatment in total. Massage was performed for 8 to 10 minutes each time, once a day, 5 times as a course of treatment, and one or two courses in total. ② The patients in the control group were treated with traction only. Cervical Spondylopathy Therapeutic Effect Rating Scale was adopted to evaluate the effects, three items were selected to set as our scoring criterion, which included clinical symptoms, physical examinations and activities of the daily life (ADL). The improvement index was figured out on the basis of the pre-treatment score and post-treatment score. The improvement index is worked out by the following equation: improvement index = (The post-treatment score-pre-treatment score) / the post-treatment score. The improvement index was evaluated by physicians after the treat ment. Effectual: Clinical symptoms and body symptoms were obviously improved; work, learning, and daily life are not affected. Effective: Clinical symptoms and body symptoms have improved , and work, learning, and the daily life are partially affected. In-effective: There was no improvement in clinical symptoms and body symptoms and showed no effect on the work ,learning, and the daily life. MAIN OUTCOME MEASURES: ① Score of the treatment of cervical spondylopathy of the patients before and after the treatment. ② Intervention effect on the patients after the treatment RESULTS: Totally 52 patients with cervical spondylopathy entered the stage of result analysis with none missing in the midway. ① Comparison of the scores of the treatment of cervical spondylopathy of the patients before and after the treatment: After the treatment, the score in the experimental group was significantly higher than that in the control group [ 16.431 ±3.212,13.147 ±3.036 ( t =4.676, P ＜ 0.01 )], and the improvement index of the patients in the experimental group was significantly higher than that in the control group [0.505±0.163,0.368±0.145 (t=3.860, P ＜ 0.01 )]. ② Comparison of the intervention effects on the patients after the treatment: The effectual rate of the experimental group was higher than that of the control group (80.8%,46.2%).CONCLUSION: The approach of traction combined with massage is superior to simple traction. Different rehabilitation approaches have different properties in biological mechanics. It has showed that the force change is important to therapeutic effectiveness on cervical spondylopathy.

Objective To evaluate the long-term results of partial internal sphincterectomy for the treatment of internal anal sphincter achalasia in childhood. Methods The clinical,radiographic,manometrical and histochemical data of 6 cases were reviewed retrospectively. All patients had received partial internal sphincterectomy and were followed-up for 2 to 8 years. Results All patients presented with severe constipation with or without soiling. No stenosis zone of intestine could be noted in 3 patients by barium enema examination. The rectoanal inhibition reflex on rectal balloon inflation was absent in all patients. The normal acetylcholinesterase activity on rectal biopsies was demonstrated by histochemical staining. Ganglion cells within internal anal sphincter was noted in all cases. On follow-up,all patients regained regular bowel habits and are not on any laxatives. Conclusion The long term results of partial internal sphincterectomy for the treatment of internal anal sphincter achalasia in childhood are satisfactory.

In order to identify family factors obviously relevant to aggression, and offer a theoretical foundation for the prevention of aggression, 4010 students from primary and secondary schools in 5 different areas in Hubei province were surveyed. The Child Behavior Checklist " parents' form" (Chinese version) and the four scales of Family Environment Scale were used. A multiple logistic regression was used to identify risk factors of children's and adolescents' aggressive behavior. The results showed that maternal education, paternal occupation, family type, parental child-rearing attitude and patterns, students' interpersonal relationship were significantly associated with the children's and adolescents' aggression. The risk factors of aggression were parental child-rearing patterns, peer relationship, teacher-student relationship, and family conflicts.

ObjectiveTo study the effect and mechanism of vagus nerve stimulation(VNS) on seizure in animal with epilepsy.MethodsSeizures of 34 rats and 8 rabbits were induced by Penicillin, Kainic acid(KA) and Strychnice respectively. Electrocorticographic(ECoG), electrical activition of hippocampal neurons and behaviour were observed to evidence the effects of left intermittent VNS .ResultsVNS could suppress seizures in animal models with epilepsy. There were significant changes in epileptiform ECoG, discharges of hippcampal neuron and behaviour. ConclusionSomatic seizure can be effectively inhibited by visceral afferent inputs through integration in cortical and hippocampal parts.