No abstract available.

Acute Disease ; Adolescent ; Adult ; Aged ; Cyclophosphamide ; administration & dosage ; therapeutic use ; Female ; Hemoperfusion ; Humans ; Male ; Methylprednisolone ; administration & dosage ; therapeutic use ; Middle Aged ; Paraquat ; poisoning ; Renal Dialysis ; Retrospective Studies ; Young Adult

Vertebral artery hypoplasia is a congenital vessel variation. Its incidence is from 1. 9 to 26. 5% . In recent years, studies have shown that vertebral artery hypoplasia may be a potential risk factor for posterior circulation infarction, especialy when it coexists with other cerebrovascular risk factors. Vertebral artery hypoplasia may also cause regional hypoperfusion and complex neurovascular regulation, and it also has a certaln link with migralne.

Arteriovenous Malformations ; therapy ; Child ; Female ; Humans ; Pulmonary Artery ; abnormalities ; Pulmonary Veins ; abnormalities ; Septal Occluder Device

Objective To evaluate Feridex(superparamagnetic iron oxide,SPIO)enhanced MRI in the diagnosis of hepatic lesions.Methods Feridex-enhanced MRI was performed in 31 patients with CT,or MRI proved or suspected hepatic lesions.T 2WI signal intensity of hepatic parenchyma,lesion and background noise was measured before and after enhancement separately.SNR and CNR of parenchyma and lesion before and after enhancement were calculated.The number of lesions on plain and enhanced scans were observed and alalyzed.Results Post-enhancement SNR of liver significantly decreased (?0.05).Post-enhancement lesion-liver CNR increased significantly (?

Objective To establish a drug-resistance cell line of human glioma with temozolomide ( TMZ) ,investigate its resistance mechanisms, and provide experimental evidence for optimal TMZ therapy. Methods A TMZ-resistant human glioma cell line,U251/TR,was established by stepwise exposure of human parental U251 cells to TMZ. Resistance index and cell viability were accessed by MTT assay. Western-Blot,RT-PCR,immunohistochemistry and immunofluorescence were used to detect MGMT expression for the analysis of resistance mechanism. Results A TMZ-resistant human glioma cell line,U251/TR,was developed after 8 months of stepwise induction with 0. 25-16. 00 μg·mL-1 TMZ. IC50 in U251/TR cells was approximately 7 times higher compared with that in U251 cells (P=0. 00 ). The MGMT expression was significantly increased in U251/TR cells compared with that in parental U251 cells (P=0. 00) . Conclusion A TMZ-resistant human glioma cell line,U251/TR,was established by stepwise exposure of human parental U251 cells to TMZ. The primary mechanism of TMZ resistance is associated with increased activity of MGMT.

Objective To detect content of 4-hydroxy-3-methoxy benzoic acid by RP-HPLC and observe the inhibitory effect of phloroglucinol on catecholamine-O-methyl transferase (COMT). Methods This study used the principle of 3,4-dihydroxy benzoic acid transforming to 4-hydroxy-3-methoxy benzoic acid under COMT’ s catalytic action. COMT (20 μL) was extracted from mouse liver homogenate. In a reaction system,10 μL catecol (1í10-3 mol·L-1 ) and 10 μL phloroglucinol (5í10-3 , 1í10-3 and 2í10-4 mol·L-1 ,respectively) were added. Products were determined by RP-HPLC to analyze effects of 4-hydroxy-3-methoxy benzoic acid on COMT. Results Phloroglucinol had inhibitory effect on COMT activity at concentrations of 5í10-3 mol·L-1 ,1í10-3 mol·L-1 and 2 í10-4 mol ·L-1 ,with the inhibition rate being 25. 3% ,17. 6% and 8. 9% ,respectively. Conclusion Phloroglucinol has an inhibitory effect on COMT activity,which is weaker than the effect of catechol of the same concentration.

This study aims to evaluate the bioactivity of five components of the traditional Chinese medicine complex prescription Jiangzhi granules against hepatocellular steatosis.

Objective To determine ferulate acid in the compound angelica scinensis particle by RP-HPLC method.Methods The liquid chromatography was carried out using Zorbax C_ 18 (5?m,4.6mm?250mm),with detection wavelength at 320nm.The flow rate of mobile phase[5% acetic acid-methanol(75∶25)] was 1ml/min.Results The calibration curve was linear in the range of 0.0141～0.450mg/ml(r=0.9997,n=5).The average recoveries was 94.87%(RSD=0.5%).Conclusion The method establishied in this paper can be adopt for the compound angelica scinensis particle.This method is simple,accurate,reliable and reproducible.

Objective To observe the changes and relationships of glucose (Glu),insulin(Ins) ,insulin-like growth factor-1 (IGF-1) in newborn infant with hypixic-ischemic encephalopathy (HIE) and the protective role which Ins,IGF-1 worked on neuron.Methods HIE 50 cases,the quantity of IGF-1 in serum was detected by radioimmunoassay,the quantity of Ins in serum was detected by chemiluminescent immunoassay,the quantity of glucose in serum was detected by the instrument with type of Rokangquan TM accutive.The umbilical vein blood 2 mL were drawn from 20 cases of controls after birth.The indexes were detected by the same methods.Results 1.In acute period,the level of serum IGF-1 reduced obviously in newborn infants with HIE,and Glu increased obviously.There was a negative correlation between IGF-1 and Glu.The changes related with neonate complications.In rehabilited pe riod,the Glu get to normal,the IGF-1 was a little higher than that in acute period.but it still was lower than that of control group.There was negative correlation between IGF-1 and Glu.2.The level of Ins in serum of newborn infants with HIE had no obvious changes compairing with control group in acute period and rehabilited period.It had no relations with Glu,Ins.Conclusions It approves that IGF-1 and Glu in serum of newborn infants with HIE have obviously changed.This result will provide an academic base on treatment of HIE.