Objective To study over expression of VMAT_(2) in CHO cells resisted toxicity of MPP~(+) and rotenone.Methods MTT assay was used to detect the viability of wild type china hamster ovary(WT-CHO) and over expression of VMAT_(2) cells(VMAT_(2)-CHO) with different concentrations of MPP~(+)and Rotenone,meanwhile the change of morphology was observed.Results Indicated that acted by MPP~(+) with the scope of 0.2～(2.0 mmol/L)(P

Objective:To establish the method for the determination of five anthraquinones constituents including aloe-emodin , rhein, emodin , chrysophanol and physcion in Yanxiaodinaer syrups. Methods: An HPLC method was used with a DIONEX Acclaim 120A C18 (250 mm × 4. 6 mm,5 μm) column. The mobile phase was acetonitrile-0. 1% phosphoric acid with gradient elution at flow rate of 1. 0 ml·min-1 . The detection wavelength was 254nm,the column temperature was 30℃and the injection volume was 10 μl. Results:The linear ranges of the five anthraquinones were 0. 018 7-0. 467 0 μg(r=0. 999 8),0. 020 2-0. 504 0 μg(r=0. 999 9), 0.013 0-0.390 6 μg(r=0.999 9),0.013 3-0.399 9 μg(r=0.999 9)and 0.009 3-0.277 8 μg(r=0.999 9), and the recoveries were 94. 30%(RSD=2. 68%,n=6),95. 49%(RSD=2. 50%,n=6),93. 70%(RSD=2. 42%,n=6),92. 52%(RSD=2. 40%,n=6) and 93. 72%(RSD=2. 54%,n=6), respectively. Conclusion:The method is accurate , sensitive and reproducible, which can be used as the basis for the quality control of Yanxiaodinaer syrups.

Cerebral small vessel disease refers to the diseases that affects intracranial small arteries,arterioles,precapillaries,and venules.The image-based types mainly include white matter lesion,lacunar infarction,and cerebral microbleeds.It is believed to be the independent risk factors of cognitive impairment or vascular dementia.The location,number and volume of the small vessel diseases may all influence the degree of cognitive impairment and manifestation.

Objective To study MRI characteristics and value in the diagnosis of nasopharyngeal carcinoma with skull base erosion. Methods 86 cases of nasopharygeal carcinoma with positive nasopharyngeal pathology and symptoms of skull base erosion were selected. Axial T1WI, T2WI and coronal, sagital T1WI were performed. 47 cases had axial, coronal and sagital T1WI examination post Gd-DTPA injection. Results Areas of skull base involvement were as follow: 56 cases with pterygoid process, 54 with clivus, 28 with foramen ovale (including sphenoid wing), 27 with petrous apex, 1 with occiptal bone. 71 cases had more than one area involvement. There are four patterns in our group: ①Defect in the signal avoid cortex of skull base; ②High signal intensity of marrow was replaced by tumor; ③Contrast enhancement in abnormal bone; ④String like enhancement passing nerve foramen in skull base. 44 cases included intracranial abnormal. Conclusion MRI is the preferred technique in dementstrating skull base involvemetn of nasopharyngeal carcinoman.

Objective To research the clinical efficacy of alprostadil injection in treatment of patients with emergency percutaneous coronary intervention (PCI).Methods Eighty-five patients with acute myocardial infarction(AMI) were enrolled in this study,and they were randomly divided into treatment group (45 patients) and control group (40 patients).All patients were given 300 mg aspirin and 300 mg clopidogrel before operation,anti-platelet aggregation and long-term hpid regulation were given.On the basisof conventional treatment,0.9％ sodium chloride (NaCl) 100 ml and alprostadil injection 10 μ g were given in treatment group,2 times one day,a total of 14 d.After treatment for 1,6 months,the heart function and systohc function were assessed by echocardiography.High sensitive C reactive protein (hs-CRP),endothehn (ET)-1 and interleukin (IL)-6 were measured with ELISA,nitric oxide (NO) was measured with chromatometry.The basic clinical characteristic,inflammatory markers and major adverse cardiac events (MACE) were analyzed during in-hospital and follow-up period between two groups.Results The level of IL-6,hs-CRP,ET-1,NO in two groups had no significant difference before treatment and after treatment for 1 month (P ＞ 0.05).After treatment for 6 months,the level of IL-6,hs-CRP,ET-1,NO in treatment group had significant difference compared with that in control group [(1.04 ± 1.10) ng/L vs.(3.82 ± 1.34) ng/L,(1.5 ±1.2)mg/Lvs.(3.5 ±0.8) mg/L,(62.18 ± 20.22) ng/L vs.(85.56± 16.55) ng/L,(55.25 ± 8.25) μmol/L vs.(46.16 ±9.20) μ mol/L] (P ＜0.05).The level of left ventricular end-systolic volume (LVESV),left ventricular end-diastolic volume (LVEDV),left ventricular ejection fraction (LVEF) in two groups before treatment and after treatment for 1 month had no significant difference (P ＞ 0.05).After treatment for 6months,the level of LVESV,LVEDV in treatment group were significandy lower than those in control group [(82.5 ± 20.6) ml vs.(90.5 ± 20.1) ml,(130.5 ± 33.8) ml vs.(144.3 ± 28.6) ml],the level of LVEF was significantly higher than that in control group [(57.8 ±6.3)％ vs.(48.5 ±6.5)％],there was significant difference (P ＜ 0.05).The mortality rate and the incidence of MACE was 7.5％ (3/40),25.0％ (10/40)in control group,which were significantly higher than those in treatment group [4.4％ (2/45),13.3％ (6/45)],there were significant differences (P ＜0.05).The incidence of heart failure in control group was 22.5％(9/40),which was significantly higher than that in treatment group [11.1％(5/45)],there was significant difference (P ＜ 0.05).Conclusions Using alprostadil injection for patients with AMI after emergency PCI can prevent left ventricular remodeling,improve left ventricular function,and can reduce the incidence of MACE.Alprostadil injection can reduce the inflammatory reaction in patients with AMI,inhibit catecholamine release,inhibit platelet adhesion and aggregation,and stable plaques,reduce the incidence of MACE.

Objective To study the neurotoxicity induced by rotenone to the primary cultured ventral mesencephalic dopaminergic neurons. Methods SD rat ventral mesencephalic neurocytes were cultured and identified by tyrosine hydroxylase (TH) and glial fibrillary acid protein (GFAP). Immunohistochemistry and morphological observation were used to evaluate the toxicity of rotenone to the dopaminergic neurons and astroglia. Results After 24 h of exposure to rotenone at 0.10 and 1.00 ?mol/L, the number of surviving dopaminergic neurons significantly decreased. The number of surviving astrocytes significantly decreased treated with 1.00 ?mol/L. Exposed to 0.10 ?mol/L rotenone, the morphological change of the dopaminergic neurons was seen, the area of cell body decreased significantly. Conclusion The dopaminergic neurons is more susceptible to the neurotoxicity of rotenone.

Parkinson’s disease (PD)is one of familiar neurodegenerative disorder. The pathogenesis of PD,up to now,has not been fully understood. Although heredity,aging and environmental factors were involved,the combination effects of these factors were much concerned. PD animal model is an indispensable tool for exploring the mechanism,neuro-protective drugs and therapy strategies. Some kinds of animal models were introduced in this paper. MPTP mouse model is the most important and most universal use.The consideration of the effect of multiple risk factors may be the start of new era in the research field of PD animal models.

Objective To improve the diagnostic level of on pelvic nodal metastases of prostate cancer. Methods Thirty-three cases of prostate cancer underwent instep lymphangiography to find out if there were pelvic nodal metastases.The results of lymphangiography were compared with the pathologic results of fine needle aspiration biopsy of lymph nodes. Results In the 9 cases testing positive for nodal metastases 7 were identified by cytology of fine needle aspiration biopsy and 6 were confirmed by pathology;while in the 24 cases with negative results,4 were false negative(17%). Conclusions The lymphangiography plays an important role in diagnosis of nodal metastases of prostate cancer.Fine needle aspiration for suspected lymph nodes can minimize false positive result,nevertheless there is still false negative result in lymphangiography.

Objective To explore the effects of electroacupuncture combined with enriched rehabilitation training on the expression of brain-derived neurotrophic factor (BDNF) in the cerebral cortex of neonatal rats with brain injury. Methods Lipopolysaccharide (LPS, 450 μg/kg∙d) was injected to pregnant rats on the 17th and 18th days intraperitoneally. The control group was injected with equal sterile normal saline. The neonatal rats injected with LPS were randomly divided into non-intervention group and intervention group. The intervention group received intervention once a day until the 28th day. The control group and the non-intervention groups were fed regularly. Immunohistochemistry (SABC) was used to detect the expression of BDNF on the 1st, 14th, 21st and 28th days. Results The expression of BDNF was higher in the non-intervention group than in the control group (P<0.01) on the 1st day, but there was no significant difference on the 14th, 21st and 28th days. And it was higher in the intervention group than in the other 2 groups (P<0.01). Conclusion Electroacupuncture combined with enriched rehabilitation training can significantly improve the expression of BDNF in cerebral cortex of neonatal rats with brain injury

OBJECTIVE: To summarize and analyze the characters, pathogenesis and influencing factors of various tremors, so as to provide evidence for the identification, prevention and treatment of various tremors in clinic.DATA SOURCES: A computer-based online search of Medline database was undertaken to identify articles about tremor published in English between January 1998 and May 2005 with the keyword of "tremor". Meanwhile, Chinese relevant articles published between January 1998 and May 2005 were searched with computer in Chinese full-text journal net by using the keyword of "tremor" in Chinese. STUDY SELECTION: The data were primarily checked. Inclusive criteria: ① articles about the classification, etiological factors and influencing factors of tremor; ② retrospective investigation on specific events. Exclusive criteria: repetitive studies.DATA EXTRACTION: Totally 48 articles were collected, and 31 repetitive studies were excluded. Of the other 17 ones accorded with the inclusive criteria, 9 were the investigations about tremor, and 8 were the specific cases of tremor.DATA SYNTHESIS: Tremor is classified mainly according to its manifestations and the etiological factors of basic disease. Mechanical tremor,reflexion of central nervous system and central oscillator are the pathogenesis of tremor. According to the manifestations, tremor canbe classified into static tremor, kinetic tremor, essential tremor, postural tremor, unfixed tremor. According to the different etiological factors, tremor can be classified into enhanced physiological tremor, essential tremor syndrome (classical essential tremor, orthostatic tremor, task-specific tremor, undetermined tremor), dystonic tremor, cerebellar tremor, Holmes tremor, peripheral neuropathic tremor, drug-induced and toxic tremor and psychogenic tremor,and different treatments should be adopted according to different etiological factors in clinic.CONCLUSION: Tremor has similar manifestations, but the pathogenesis are different, so different treatments should be adopted according to different etiological factors in clinic.