Atherectomy, Coronary ; methods ; Drug-Eluting Stents ; Humans

Objective:To observe the inhibitory effect of disodium cantharidinate on human hepatoma cell line HepG2 and investi-gate its possible mechanisms. Methods:HepG2 cells were treated with different concentration of disodium cantharidinate,The in- hibiton of cell proliferation,cell cycle distribution,expression of Survivin and activity of Caspase-3 were respectively evaluated by MTT assay,flow cytometry,immunocytochemistry,and chromatometry. Results:Disodium cantharidinate could inhibit the proliferation of HepG2 cells. The IC50 at 24,48,72 h after intervention were 2.41?0.48,0.72?0.08,and 0.39?0.04 ug/ml,The cells of G2/M phase and activity of Caspase-3 were increased.the expression respectively of Survivin were inhibited after the intervention of disodium cantharidinate. Conclusion:The inhibitory effect of disodium cantharidinate on HepG2 cells may be mediated by the block of cellcycle,enhancement of Caspase-3,and inhibition of Survivin.

Objective To observe the clinical efficacy of Yang Xin Huo Xue(nourishing the heart and activating blood flow) needling method plus Western medication in treating chronic heart failure due to coronary heart disease (CHD).Method Eighty patients with CHD-induced chronic heart failure were randomized into a treatment group and a control group, to respectively receiveYang Xin Huo Xueneedling method plus Western medicationor Western medication alone for intervention. The heart function was estimated and brain natriuretic peptide (BNP) was detected before and after the intervention in both groups, and the change of heart function was observed.Result Yang Xin Huo Xueneedling method plus Western medication achieved a satisfactory therapeutic efficacy in treating chronic heart failure, and its total effective rate was significantly different from the rate in the control group (P<0.05); compared with the control group, the BNP value declined more significantly in the treatment group, and the difference was statistically significant (P<0.05).Conclusion Yang Xin Huo Xueneedling method plus Western medication can produce a satisfactory efficacy in treating CHD-induced chronicheart failure.

A L-serine producing facuhative methylotroph mutant (Mth~H、Gly~R)was derived from Pseudomonas flava A3 by combination treatment with ultraviolet(UV)and diethylsulfate(DES).It could accumulate 6.2g/L L-serine in the medium containing 30g/L glycine and 1% methanol as carbon source when it was cultured for 3 days,and it has an improvement about 67.6% compared with the origin.The mutant also has a good stability of descendiblity of L-serine producing.

Fracture Fixation ; instrumentation ; methods ; Fractures, Bone ; surgery ; Humans ; Scaphoid Bone ; injuries ; surgery ; Wrist Injuries ; surgery ; Wrist Joint ; surgery

Objective: To explore rational drug usage for periodontitis treatment through a comparative study of the efficacy of four kinds of drugs on the experimental periodontitis. Methods: 126 Wistar rats,10 randomly selected as normal control group, the other 116 were modeled by using local wire ligation and systemic prednisolone acetate injection. Successful animal models were randomly divided into model control group and berberine hydrochloride, minocycline hydrochloride, ginsenoside Rg-1 and transforming growth factor-β1 treatment groups, which were treated with each kind of medicine separately and were killed at the end of 1, 2, 4 weekend. Detected IL-1β, TNF-α, IL-6, BGP levels by immunohistochemical SABC assay. Results: IL-1β, TNF-α, IL-6 of the treatment groups were lower and BGP was higher than model control group(P<0.05).Among them, the role of berberine hydrochloride to reduce IL-1β and TNF-α was the best. The role of minocycline hydrochloride to reduce IL-6 was the fastest. The role of transforming growth factor-β1 to increase BGP was the fastest. The role of ginsenoside Rg-1 to increase BGP was more lasting and better follow-up. Berberine and ginsenoside Rg-1 reduced IL-1β, TNF-α, IL-6 and increased BGP at the same time. Conclusion: The treatment of minocycline hydrochloride and transforming growth factor-β1 are quick. Berberine and ginsenoside Rg-1, particularly berberine have the advantage of multi-targets' role.

Objective To analyze the morphologic characteristics of the single infarct in the territory of perforating arteries which arise from the middle cerebral artery (MCA),and further to investigate the association between the type of cerebral infarction and the isolated stenotic disease of the ipsilateral MCA.Methods Fifty-five patients with acute ischemic stroke who were admitted to the Department of Neurology,Peking Union Medical College Hospital,Beijing,China during January 1,2005 and December 31,2006 were identified.All of the patients had a single acute infarction in the territory of the MCA perforating arteries revealed on diffusion weighted imaging (DWI).Transcranial Doppler (TCD) and magnetic resonance angiography (MRA) were performed for all patients.Patients with stenesis >50% of proximal internal carotid artery and potential cardiac sources of embolism were excluded from the study.Patients were classified into 2 groups according to the presence of the atberosclerotic stenosis of the ipsilateral MCA: patients with or without MCA stenosis.Size of the lesions was measured including the diameter,area and volume.The infarcts with a diameter less than 2 cm were classified as lacunar infarcts; those bigger than 2 cm were classified as the striatocapsular infarcts.The infarcts on DWI was seen in basal ganglia,the body of lateral ventricle and beth.The concomitance of subcortical multiple small old infarcts or leucoariosis on T2>WI-MRI between the two groups was assessed.Results Among these 55 patients,14 (25.5%) had stenosis of the ipsilateral MCA and 41 (74.5%) had a normal MCA.In the group of MCA stenosis,71.4% patients were lacunar infarcts; 67.3% patients were also lacunar infarcts in the normal MCA group.There was no significant difference between the two groups (χ2=0.147,P=0.701).No significant difference in the diameter,area and vo|ume of the infarcts was found between the two groups.The basal ganglia,the body of lateral ventricle and both of these places involvement accounted for 31.7% ,17.1%,51.2% in the normal MCA group; 35.7%,28.6%,35.7% in the stenotic MCA group.No significant difference was found (χ2=1.272,P=0.529).Twenty-three (56.1%) patients had concomitant of small old subcortical multiple infarcts or leucoariosis in the normal MCA group and 3 (21.4%) in the MCA stenosis group,and there was a significant difference between the two groups(χ2=5.033,P=0.025).Conclusions A series of pathologic mechanisms are supposed to cause the single infarction in the territory of MCA perforating arteries.Stenosis of MCA is an underlying cause in addition to perforating artery diseases.There is no significant difference in the size,volume or distribution of the lesions between the two groups.The concomitant of subcortical multiple small old infarcts or leucoariosis may demonstrate the perforating artery disease.

Exploring the functional network during the interaction between emotion and cognition is an important way to reveal the underlying neural connections in the brain. Sparse Bayesian network (SBN) has been used to analyze causal characteristics of brain regions and has gradually been applied to the research of brain network. In this study, we got theta band and alpha band from emotion electroencephalogram (EEG) of 22 subjects, constructed effective networks of different arousal, and analyzed measurements of complex network including degree, average clustering coefficient and characteristic path length. We found that: (1) compared with EEG signal of low arousal, left middle temporal extensively interacted with other regions in high arousal, while right superior frontal interacted less; (2) average clustering coefficient was higher in high arousal and characteristic path length was shorter in low arousal.
Arousal ; Bayes Theorem ; Brain ; physiology ; Brain Mapping ; Cluster Analysis ; Cognition ; Electroencephalography ; Emotions ; Humans

Objective　To study the factors effecting the formation of the ventricular aneurysm post myocardial infarction (MI) and evaluate the diagnostic methods.Methods　23 MI patients with ventricular aneurysm confirmed by left ventricular angiography were observed for electrocardiogram (ECG), echocardiogram (ECHO), coronary disease and collateral vessels formation. Results　All patients had LAD disease, 65.2% patients had three coronary disease, and those with class Ⅲ collateral vessels circulation only 17.4%. Compared to ECHO by which only 4 patients were found aneurysm, the positive rate by ECG was 82.6%. Conclusion　Patients with multiple coronary disease and without enough collateral vessels are expected to form ventricular aneurysm. ECG is more sensitive than ECHO for diagnosis of ventricular aneurysm post MI

There are 10％-25％ inherited breast cancer patients among all breast cancer patients.Hereditary factors play an important role in the occurrence and development of inherited breast cancer.There are three kinds of susceptibility genes of inherited breast cancer including high penetrance susceptibility genes,middle penetrance susceptibility genes and low penetrance susceptibility genes.Various susceptibility genes are closely related to inherited breast cancer.