Parkinson's disease (PD) is one of the most frequent neurodegenerative disorders. ?-Synuclein was the first"PD gene"to be discovered. The involvement of ?-synuclein in PD was first suspected after two different ?-synuclein mutations were identified in two kindreds with autosomal-dominant PD. However,the discovery that ?-synuclein is the major component of Lewy bodies-pathological hallmarks of PD, confirmed its role in PD pathogenesis. Pathological aggregation of ?-synuclein might be responsible for neurodegeneration. Multiple factors have been shown to affect ?-synuclein aggregation in vitro or in vivo. In addition, soluble oligomers of ?-synuclein might be even more toxic than the insoluble fibrils found in degenerative diseases. So it is significant to investigate factors affecting ?-synuclein aggregation, especially their accurate effects on the aggregation process.

Objective To explore therapeutic effects and indications of stereotatic puncture and drainage under multi-parameter orientation in the treatment of hypertensive intracerebral hemorrhage(HICH).Methods A total of 56 patients with HICH underwent stereotatic puncture and drainage from October 2003 to May 2005.The entrance position,the puncture plane,the puncture angle and depth,and the length of side hole of drainage tube were accurately designed before operation,and,if necessary,multiple drainage tubes were introduced via one hole.Results According to the Glasgow Outcome Scale(GOS) scores,12 patients recovered well(21.4%),29 patients were moderate disability(51.8%),and 12 patients were severe disability(21.4%).No longstanding coma was noted.Three patients died(5.4%). Conclusions Stereotatic puncture and drainage under multi-parameter orientation has better therapeutic effects and less damages than open operation.The procedure is suitable for 10~60 ml hematoma,especially in elderly patients and deep-located hematoma.The best operation timing is 3~6 hours after the onset of hemorrhage.

Objective To explore the clinical value of CT-guided selective radiofrequency thermocoagulation of the semilunar ganglion for the treatment of primary trigeminal neuralgia(PTN).Methods A total of 24 patients with PTN were included.Under local anesthesia and CT guidance,the semilunar ganglion was punctured by way of the oval foramen via the anterior approach using the Hartel's technique.Selective radiofrequency thermocoagulation was performed after the targets were confirmed by electrical stimulation. Results The pain was completely relieved in 18 patients,partially relieved in 5 patients,and unchanged in 1 patient,the total effective rate being 95.8%(23/24).Follow-up observations for 3~18 months(mean,12 months) in the 24 patients showed recurrence in 2 patients(8.3%).Conclusions CT-guided selective radiofrequency thermocoagulation is a safe,simple,and effective option for the treatment of PTN,especially suitable for the elderly and high-risk patients.

Objective To explore the clinical significance of detection of IL-17 and peripheral blood eosinophil(EOS) count in whee-zing children under 5 years old.Methods Fifty-three children with recurrent wheezing under 5 years old had been randomly enrolled including 43 boys and 10 girls.They were divided into 2 groups :wheezing group Ⅰ,in which,the patients with atopic high risks(n=27);whee-zing group Ⅱ,in which,the patients without atopic high risks(n=26).Children without infectious diseases such as hernia and renal calculus had been enrolled randomly as control group(n=20),including 11 boys and 9 girls.After taking 3 mL venous blood and centrifuging of patients in 3 groups,the level of IL-17 in the serum was measured by double-antibody sandwich enzyme-linked immunosorbent assay,peripheral blood EOS count was performed in the meantime by means of eosine staining.Results The serum levels of IL-17 in wheezing groups [(1 469.315?978.300) ng?L-1,(263.340?131.800) ng?L-1]were significantly higher than that of control group[(36.478?2.000) ng?L-1](Pa0.05);serum IL-17 and peripheral blood EOS count had positive correlation(r=0.933,P

Acute Disease ; Adolescent ; Adult ; Aged ; Child ; Female ; HLA-G Antigens ; metabolism ; Humans ; Interleukin-10 ; metabolism ; Leukemia ; metabolism ; Male ; Middle Aged ; Young Adult

Adult ; Dimethylformamide ; analysis ; toxicity ; Dose-Response Relationship, Drug ; Humans ; Liver ; drug effects ; Male ; Middle Aged ; Occupational Exposure ; statistics & numerical data ; Physical Examination ; statistics & numerical data

Breast Neoplasms ; metabolism ; pathology ; Cell Polarity ; Epithelial Cells ; metabolism ; pathology ; Epithelial-Mesenchymal Transition ; Eye Proteins ; metabolism ; Female ; Humans ; Membrane Proteins ; metabolism ; Nerve Tissue Proteins ; metabolism ; Receptors, Proteinase-Activated ; metabolism ; Tumor Suppressor Proteins ; metabolism

Objective To investigate the clinical efficacy and safety of radiofrequency ablation (RFA)combined with low frequency ultrasound radiation with microbubble for the treatment of malignant liver neoplasms.Methods The clinical data of 25 patients with malignant liver neoplasms who received RFA combined with low frequency ultrasound radiation with microbubble at the Kunming General Hospital from January 2010 to June 2011 were retrospectively analyzed.RFA was firstly performed with ultrasonic guidance,and then low frequency ultrasound radiation with microbubble was performed according to the results of ultrasound contrast examination 1 week after RFA.Ultrasound contrast examination was performed and the hepatic function and serum alpha fetoprotein (AFP) were assayed before operation,3 and 6 months after operation,respectively.All data were analyzed using the t test or chi-square test.Results The gross tumor volumes of 16 patients reduced by 30％ at 3 months after operation when compared with that before operation.The gross tumor volumes of 17 patients reduced by 50％ at 6 months after operation when compared with that before operation.The gross tumor volume of 7 patients reduced,but tissues surrounding tumors showed the signal of bloodstream.The gross tumor volume of 1 patient did not reduce.The levels of aspartate aminotransferase (AST),total bilirubin (TBil) and alpha fetoprotein (AFP) at 3 months after operation were significantly lower than those before operation (t =23.51,13.79,257.07,P ＜0.05).The levels of alanine aminotransferase (ALT),AST,TBil and AFP at 6 months after operation were significantly lower than those before operation (t =5.67,27.19,21.02,333.46,P ＜ 0.05).No local recurrence was detected during a follow-up of 6 months.The scores of quality of life (QOL) were very good in 21 (84.0％) patients,good in 2 (8.0％) patients,fair in 1 (4.0％) patient and poor in 1 (4.0％) patient.The scores of Karnofsky (KPS)were improved in 19 (76.0％) patients,stable in 5 (20.0％) patients and aggravated in 1 (4.0％) patient.There were significant differences in QOL and KPS between pre-and postoperation (x2=41.600,18.960,P ＜0.05).Conclusion RFA combined with low frequency ultrasound radiation with microbubble is effective in reducing the tumor size and protect the hepatic function for patients with malignant liver neoplasms.

Objective:To observe the expression of cell adhesion molecule CD44 in lung tissue of rats with asthma.Methods:32 SD rats were randomly divided into 4 groups:the normal group and the model group,8 rats in each group.The asthmatic model was established by repeated inhalation of ovalbulium.The expression of CD44 in lung tissue of rats was detected by semi-quantitatively reverse transcription-polymerase chain reaction(RT-PCR) and by means of immuno-histochemical staining.Differential leukocytes counts(neutrophils,eosinophils,and lymphocytes) in bronchoalveolar lavage fluid(BALF) were performed after staining with wright staining.Results:The expressions of CD44 increased one week after OVA challenge(P

Objective: To establish an HPLC method for the fingerprint analysis of Aquilariae Resinatum Lignum (ARL), so as to provide evidence for the identification and quality control of ARL. Methods: The analysis was carried out on a Dionex-Acclaim 120 C18 column (250 mm × 4.6 mm, 5 μm). The mobile phase consisted of acetonitrile and water-acetic acid (99.5:0.5) with the flow rate of 0.4 mL/min at 254 nm and the separation was performed at 26℃. The similarity was analyzed with "Similarity Evaluation System for Chromatographic Fingerprint of Chinese Materia Medica 2004A" and the cluster analysis was performed by SPSS software. Results: The HPLC characteristic fingerprint of ARL has been established. A total of 24 common peaks were characterized, and nine of them were identified by comparing their retention time with reference subslances. The values of similarity evaluation mostly agreed with the result of cluster analysis. Conclusion: It is the first time to establish the HPLC fingerprint of ARL. The method is simple and quick, and reflects the information of chemical composition of ARL comprehensively, which provides the scientific basis for the identification and quality evaluation of ARL.