Objective To explore the method for establish the temporal lobe epilepsy model in SD rats with stereotactic technique and to study the characteristic of electroencephalography (EEG) after epileptic seizure. Methods Kainic acid was injected into right hippocampus via stereotactic technique in 20 rats, and the behavior of rat was recorded by a video camera. The electrical activity changes of brain were recorded by EEG in bilateral hippocampus, amygdala and frontal lobe. Results According to Racine's scale, 6 rats were typeⅤ,10 rats were type Ⅳ,3 rats were type Ⅲ,1 rat was type Ⅱ. The spike wave was originated from hippocampus and spread to amygdala and frontal lobe. Pathologic changes showed that prolonged seizures induced pyramidal cell loss and death in hippocampus. Conclusions The method to establish kainic acid induced temporal lobe epilepsy model with stereotactic technique was credible, economical and useful. The spike wave originated from hippocampus was the basic feature of EEG of temporal lobe epilepsy model in rats.

Objective To explore the effect of breast-conserving operation for the treatment of early-stage breast cancer. Methods From November 1999 to Octorber 2001, the patients with early-stage breast cancer were treated with breast-conserving surgery followed by radical irradiation according to the patients' will. The cosmetic results and quality of life were analyzed after surgery and radiation. Results In all the patients received operation treatment from 1999 to 2001, eighteen patients were treated with breast-conserving surgery with breast conservation rate of 10.2%, of which 7 cases with quadrantetomy plus axillary lymph node dissection (ALND), 8 cases with lumpectomy plus ALND and 3 cases with lumpectomy. Pathological staging was as follow: 4 cases in stage 0, 12 cases in stage Ⅰ, and 2 cases in stage Ⅱ. All cases were followed-up. The cosmetic results were good in 94%(17/18) and fair in 6%(1/18). All the patients had not local recurrence and distant metastasis. Conclusions Breast-conserving surgery followed by radiation therapy is superior to mastectomy in terms of improving breast cosmesis and quality of life. Postoperative radiation therapy does not affect the cosmetic result.

Objective] To analyze the effect of acupuncture treatment on regulating patients’spirits who accepted IVF-ET surgery, in order to provide a new train of thought for clinical treatment. [Methods] Based on emotional factors, analyze the condition of patients accepting IVF-ET surgery. Explaining that spirit is also an important factor, can not be ignored during pregnancy and expounding the theory and prescription of acupuncture treatment on regulating spirits in patients with infertility, and in the clinical cases, patients undergoing IVF-ET can get active treatment by regulating spirits.[Results] Acupuncture treatment on regulating spirits to remove patients’depression and anxiety by regulating qi and blood, also nourishing heart and tranquilizing mind, so, this treatment can create conditions for conception. The clinical case cited also achieved good results. [Conclusions] This treatment,as a natural non-drug therapy,can be considered as a new train of thought in clinical treatment of patients with infertility after IVF-ET surgery and is worthy of research.

Objective To study the changes of amplitude of low-frequency fluctuation (ALFF) of the resting state fMRI in heroin abuser (HD), and discussed its underlying neurophysiological mechanism.Methods The resting state fMRI data of 15 heroin abusers and 15 normal volunteers were analyzed by ALFF.The amplitude of the blood oxygenation level dependent activation of the resting state brain was investigated.The brain structures showing increased and decreased ALFF in TLE patients were demonstrated by comparing to normal subjects with 2-sample t -test with threshold of P＜0.05.Results Compared with normal subjects,the regions showing decreased ALFF in HD patients were distributed in right temporal lobe(45, - 30, -21 ) ,left hippocampus( - 36,- 33, - 6), right thalamus ( 24, - 12,27 ), left posterior cingulum gyrus ( - 15, - 54,24 ), right parietal lobe /precuneus ( 21, - 51,36 ), right inferior parietal lobule ( 21, - 48,78 ) and dorsal lateral aspect of the right frontal lobe(21, - 48,78) ,while ALLF of left(45, - 42,63 ) lateral frontal cortex(0 ,39,72) in HD patients was significantly higher.Conclusion HD shows abnormal brain functional organization in resting state, which may play an important role in the production, maintenance and relapse after withdrawal of heroin abuse.

Objective To evaluate endovascular embolization with Onyx in treating brain arteriovenous malformations(AVM) located in the centre-encephalic region.Methods Eighteen patients with AVM in the brain centre-encephalic region were treated with embolization by using Onyx.According to Drake criteria of the AVM type,small type was seen in 10,medium type in 6 and large type in 2 cases.By using Onyx as embolization material,a total of 24 endovascular procedures were carried out.Results After treatment,complete obliteration was obtained in 12 cases(66.7%),disability(symptoms worsened) resulted in 2 cases(11.2%) and no death occurred.In the medium type group and the small type group complete obliteration was seen in 3(50%) and 9(90%) cases respectively,the difference between the two groups was significant(P 2 cm and the patients with the feeding artery

Revascularization technique is a favorable approach to solve the insufficient compensation of cerebral blood flow for intractable intracranial aneurysms that needed to occlude parent arteries.With the development microsurgical technique and the improving of patency rate of vasotransplantation,the efficacy of revascularization for the treatment of intractable intracranial aneurysms is also improving constantly.

Objective To discuss the clinical features and prognostic factors of primary testicular lymphoma (PTL). Methods A retrospective review was performed based on the clinical records of 33 PTL cases treated at Tianjin Medical University Cancer Hospital from June 1977 to May 2009.Drawing survival curves by Kaplan-Meier method, using Log-rank test to the univariate analysis, and multivariate analysis by COX regression model to evaluate independent prognostic factors. Results The median age of patients was 62 years at presentation(range 33-81 years). Painless testicular swelling was the initial symptom. The majority of histological subtype was B cell lymphoma, 48% of which was diffuse large B-cell non-Hodgkin's lymphoma. By postoperative chemotherapy and/or radiotherapy, 23 patients achieved complete remission and 7 achieved partial remission, with a median follow-up of 23 months (4-231 months). The 5 years and 10 years of overall survival was 39.1% and 19.5%. The effect of patients who received chemotherapy≥4 cycles and B cell lymphoma patients combination with Rituximab were better. In multivariate analysis, Ann Arbor stage, B symptoms, age of patient and number of extranode site were independent prognostic factors of survival. Conclusions Primary non-Hodgkin lymphoma should be treated with multi-modality strategies. Treatment with doxorubicin-based chemotherapy after orchiectomy should be recommended. Ann Arbor stage, B symptoms, age of patient and number of extranode site were independent prognostic factors of survival in PTL.

Objective To investigate the characteristic of P30o event-related potentials(ERP) of impulsive behavior in heroin addicts.Methods The Iowa gambling task (IGT) were performed by using the paradigm for psychological experiment both in heroin addiction group (HA group) and health control group (HC group),the inspection of electroencephalography were underwent in all the subjects concurrently.Following the collection of data of ERP,amplitude and latency of P300 were compared between the two groups,and then the relationship betweenamplitude or latency of P300 and the results of Barratt impulsiveness scale were analyzed separately.Results Compared to HC group,BIS score as well as the numbers of high frequency loss cards were significantly higher in HA group ( HA:75.12 ± 12.49,91.14 ± 21.35 ; HC:66.54 ± 8.61,73.71 ± 18.91 ; P ＜ 0.05 ),while the both two groups had visible waveforms of P30o,and the amplitude and latency were markedly lower ( HA:4.92 ± 1.14,293.43 ± 36.21 ; HC:7.65 ± 1.59,332.68 ± 40.15 ; P ＜ 0.05 ) and were negatively associated with BIS score in HA group( r =-0.76,-0.52,P＜ 0.05).Logistic regression results showed that the scores of BIS-11 were related to amplitude of P30o merely( P ＜ 0.05 ).Conclusion Impulsive behavior can be observed from the abnormal characteristic of the P300 event-related potential of impulsive behavior in heroin addicts,which may partly contribute to both addiction and relapse of heroin addict.

Objective To explore surgical techniques and curative effects of microsurgical treatment for neurilemmoma in upper cervical spinal canal. Methods From Jan. 2004 to Nov. 2007, 59 cases of schwannoma was resected through microoperation, the operation was conducted through a posteromedial approach, using German Laika microscope resection of the tumor, large tumors cannot complete resection,block or sac, resection postoperative neck activity conventional neck restrictions, with following observation of 6 months-2 years. Results A complete recovery was achieved in 54 cases, an improvement of symptoms was achieved in 5 cases, no death was encountered. Follow-up observations were carried out in 55 cases from 3 months-2 years (6.5 ± 1.5 months). MRI examinations 3-12 months after operation in 35 cases found no residual or recurrent tumor. X-ray radiography under anteroposterior, lateral, and open-mouth view 6 months after operation in 42 cases showed no spinal deformation and good vertebral stability. Conclusions As long as neurilemmoma in upper cervical spinal canal are diagnosed, a microsurgical treatment should be given as early as possible. Appropriate selection of surgical approach, skillful microsurgical techniques in accordance with pathological types of lesions, and principles of minimal invasion are critical for the operation safety.

Objective To explore the abnormalities in the posterior cingulated cortex structure by voxel based morphometry(VBM)and changes of functional connectivity by resting-state functional magnetic resonance imaging(fMRI)in long-term heroin addictions.Methods High-resolution volumetric T1-weighted images and resting state fMRI examination were performed on 13 long-term heroin addicts and 14 matched healthy volunteers.The T1-weighted images were processed using optimized voxel-based morphometry to investigate abnormalities in the gray matter,at the sarne time,the posterior cingulated cortex was setted as the region-of-interest(ROI)seed,with which a whole-brain voxel temporal correlation in low frequency fMRI fluctuations was calculated,to find changes of the posterior cingulated cortex functional connectivity.Results Compared with the control group,gray matter concentration significantly decreased in the posterior cingnlated cortex,at the same time,the functional connectivity between the left posterior cingulated cortex and the right temporal lobe was increased,but the functional connectivity between the left posterior eingulated cortex and the left thalamus,the left parietal lobe,the left cerebrum were all decreased in heroin addicts.At the same time,the functional connectivity between the fight posterior cingulated cortex and the left thalamus,the left parietal lobe,the left frontal lobe were decreased in heroin addicts(t testing,P<0.01).Conclusion The structure and the functional connectivity in posterior cingulated cortex in long-term heroin addicts are changed,which may affect the dysfunction of the addictive brain and the function of reward mechanism.