Objective To study the influence of valproate sodium(VPA)on neuroprotective effects of topiramate(TPM).Methods For-ty-eight 3-4 week-old male Wistar rats were randomly divided into 4 groups of 12 rats each.Group A was negative control rats,and groups B-D were rat model of epilepsy,induced by pentylenetetrazol(PTZ).The rats in 2 experimental groups were adminstered intragastrically with TPM 40 mg/kg and TPM 40 mg/kg+ VPA 200 mg/kg;2 control groups(groups A and B)with the equal amount of distilled water administration.After 2-month administration,changes of the behavior,levels of serum neuron-specific enolase(NSE)and the pathological in hippocampus were examined.Results The level of NSE in the group of TPM were significantly lower than that in masculine group,but no difference between masculine group and the TPM plus VPA.The pathological change in hippocampus were abatement in the group of TPM.Conclusion TPM plus high dosage of VPA will impaire the neuroprotective effects of TPM.

OTX1 gene is one of the pivotal transcriptional factors involved in the neurogenesis.In order to overexpress the OTX1 gene in distinct cell types and find out its contribution to the proliferation and differentiation of stem cells in vitro,OTX1 cDNA was subcloned into lentiviral vectors.The resulting constructions pDUETOTX1,pDUETGFPOTX1 and pDUETGFP were packaged in 293 cells producing viral particles to transduce 293T cells,SY5Y cells,mouse embryonic stem cells and E15 neural stem cells.It was proved that the transferred OTX1 gene was located in the nuclei of the transduced cells in stead of plasma.Lentivirus is an ideal vector delivering gene to different cells.The overexpression of OTX1 in transduced 293T cells were validated by Western blot and immunofluorescence.

OBJECTIVE To investigate the HIV infections states in tumor patients for clinical diagnosis,treatment and to prevent HIV infection in the tumor hospital.METHODS The result of HIV detection in tumor patients from Dec 2000 to Aug 2006 was analyzed by the review statistics analysis.RESULTS Totally 48 101 tumor paients were detected,and the number of tumor patients with positive HIV antibody result was 51(0.106%).Among the positive patients there were 21 cases with blood transfusion history,14 cases with blood donating experience,2 cases with both these two kinds of experiences and 14 cases without the two kinds of experiences.Their rate was separately 41.0%,27.5%,4.0% and 27.5%.Most of the HIV positive patients had no clinical synptoms.CONCLUSIONS The HIV positive rate of patients with blood transfusion or blood donating is significantly higher than the patients without these experiences.The routine detection for the HIV before the operation,blood transfusion or other traumatic detection is very necessary.

AIM: To investigate the affected proteins by tumor necrosis factor (TNF)-? in endothelial cells, and further explore the potential molecular mechanism of TNF-? on endothelial cells. METHODS: Nitric oxide (NO) production in the cultured human umbilical vein endothelial cells (HUVECs) was measured by a NO assay kit. Proteomic alterations were analyzed using two-dimensional electrophoresis, and peptide mass fingerprinting with matrix-assisted laser desorption/ionization-time of flight mass spectrometry. RESULTS: NO production in HUVECs decreased significantly after TNF-? treatement. Proteomics analysis showed 21 protein spots were changed including 9 spots that were increased and 11 spots that were decreased after TNF-? stimulation, and 1 spot was only detected in TNF-? activated cell gels. CONCLUSIONS: The decreased expression of ecNOS by TNF-? might result in decrease in NO production. Up-regulated MAP/ERK kinase 3 expression might imply that TNF-? activates the expression of adhesion molecules. Cytoskeletal protein actin is also involved in TNF-? injuried HUVECs. Proteomic analysis can find some clues for identifying new potential target of TNF-?. [

With more and more attention and investment on acupuncture scientific researches, considerable outcomes and achievements has been acquired, but the shortcoming of low transformation rate of acupuncture research achievements is gradually exposed. Nowadays there is no related report on this problem, so based on achievement translational research in other areas and practical situation of acupuncture, the existing problems and solutions are analyzed. As a result, the existing problems include (1) the research content is mainly basic research and clinical research but less acupuncture device research, leading to limited transformation efficiency; (2) the evaluation system and transformation pattern are still needed to be perfect. The solutions are (1) to properly evaluate the research achievements of acupuncture, (2) to advocate the concept and method of translational medicine, (3) to reform the policy and system, and (4) to establish valid platforms covering research, outcomes and transformation.
Acupuncture ; economics ; legislation & jurisprudence ; manpower ; Biomedical Research ; Biotechnology ; economics ; legislation & jurisprudence ; manpower ; China ; Humans ; Technology Transfer

Aluminum ; toxicity ; Animals ; Animals, Newborn ; Calcium ; metabolism ; Cerebral Cortex ; drug effects ; metabolism ; Dose-Response Relationship, Drug ; Female ; Male ; Rats ; Rats, Wistar

Objective To explore the problems in the introducing of complementary food in infants and provide a guidance for cli nical practice.Methods The questionnaire survey was carried out by childhood health doctors in mothers or caregivers on fixed outpatient health care day. The data of survey was entered into computer and analyzed with SPSS 11.5 software.Results 1.Earlier (

Objective To explore protective effect of topiramate (TPM) and folic acid (FA) on mitochondrial damage in hippocampal CA3 neurons during pentylenetetrazol- induced kindling in immature rats.Methods Pentylenetetrazol (PTZ) - induced kindling in rats was used to establish rat models of epilepsy.Forty-eight 3-week-old male Wistar rats were randomly divided into 4 groups: two therapy groups with TPM 40 mg/(kg?d) or TPM 40 mg/(kg?d) and FA 5 mg/(kg?d) administration, 2 control groups (positive control group and negative control group) with the equal amount of distilled water administration. The seizure behaviors of rats were evaluated. Two months later, the rats were killed and the brain sections were made. The mitochondrial ultrastructures of neurons in hippocampal CA3 region were observed with transmission electron microscope.Results In the positive control group, the frequency of seizure was (48.4 ? 3.7)times, while in TPM group (44.3 ? 3.1)times and in TPM and FA group(40.8 ? 3 .7)times.The differences were significant among three groups (Pa

Objective To investigate the clinical,neuroimaging and myopathological features of mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes(MELAS).Methods The clinical manifestations,neuroimaging and myopathological features of 31 patients with MELAS diagnosed in our Neuromuscular Center in the recent 7 years were retrospectively analyzed.A3243G point mutations were analyzed by RFLP method in 10 patients.Results ①Clinical features:There were 18 male patients and 13 female patients.The age of onset ranged from 3 to 43 years,averaging 21.9 years.The averaged duration was 4.9 years.Thirteen patients in this group had family history of maternal inheritance pattern.The main clinical manifestations included short stature(26 patients),recurrent headache and vomiting(24 patients), muscle weakness(22 patients),epileptic seizure(21 patients),cognitive decline(19 patients),visual disturbance(17 patients),sensorineural deafness(16 patients),ataxia(6 patients),psychiatric symptom (8 patients),external ophathalmoplegia(2 patients)and diabetes mellitus(9 patients).The serum CK level was slightly elevated in 6 patients,and the fasting blood lactic acid was increased in 15 of the 18 detected patients.②Neuroimaging features:The stroke-like lesions were mostly confined to cerebral cortex, including temporal lobe(24 patients),occipital lobe(21 patients),parietal lobe(12 patients)and frontal lobe(4 patients).Three patients had deep white matter involvement.Migrating stroke-like lesions were confirmed in 4 patients by repeated cranial CT/MRI examination.In addition,cerebral atrophy(17 patients)and bilateral basilar ganglion calcification(11 patients)were found.③Myopathological features: Scattered ragged red fibers(RRF)in various number were found in all the patients by MGT staining.Other founding included strongly SDH-reactive blood vessel(27 patients),COX enzyme deficiency(19 patients), and mild to moderate lipid storage in RRF(20 patients).④MtDNA analysis showed 9 patients with A3243G point mutation in all the detected 13 patients.Conclusion The clinical and neuroimaging features may offer important clue to the diagnosis of MELAS,but a definite diagnosis of MELAS relies on the myopathology and mtDNA mutation analysis.

0.05)between the two groups.Conclu- sion The long-term outcomes of e-CHB is not markedly different compared with that of e+CHB.