Astrocytoma ; metabolism ; pathology ; surgery ; Brain Neoplasms ; metabolism ; pathology ; surgery ; Child, Preschool ; Diagnosis, Differential ; Ependymoma ; metabolism ; pathology ; Female ; Follow-Up Studies ; Glial Fibrillary Acidic Protein ; metabolism ; Humans ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Neurofibroma, Plexiform ; metabolism ; pathology ; S100 Proteins ; metabolism ; Vimentin ; metabolism

Objective:To explore the effect of autoimmune regulator to TLRs expressions on peripheral antigen presenting cells(APC).Methods:①pEGFPC3-AIRE plasmid was transfected with liposome.②Confocal microscopy was used to observe the effect of transfection.③RT-PCR assay was used to detect the expressions of AIRE and TLR1-9 in RAW264.7cells at 36,48,72,96 h after transfection.Results:①The plasmid was transfected into RAW264.7 cells successfully,and the efficiency of transfection was 60~70%.②AIRE transfected RAW264.7 cells were achieved,and the best time was 72 h.③At 72 h after transfection,the expressions of TLR1,4,5,9 increased,and TLR3,7,8 reduced.The expression of TLR2,6 increased at 96 h.Conclusion:AIRE may regulate the immune response by control TLR expression in APC.It maintain the effective response to pathogen and tolerance state to self tissues through the effects to different TLRs.

Objective To investigate the effects of adenosine preconditioning on the expression of myocardial tumor necrosis factor-alpha (TNF-α) mRNA and intercellular adhesion molecule-1 (ICAM-1) mRNA in patients undergoing off-pump coronary artery bypass graft (OPCABG).Methods Forty patients, aged 44-68 yr, with more than three coronary artery obstructions and the ejection fraction≥40%,undergoing elective OPCABG, were randomly divided into 2 groups (n=20 each): control group and adenosine group. Adenosine group received adenosine preconditioning, with the initial infusion rate of 50 μg. kg-1.min-1, then increasing to 100μg.kg-1.min-1after 1 min, finally increasing to 150 μg. kg-1 . min-1 after 2 min and maintaining for 7 min. Vascular anastomosis was started at 5 min after preconditioning. While the control group received normal saline instead of adenosine. Tissue samples of the right auricle were taken before preconditioning (baseline) and at 15 min after blood current retum to measure the expression of myocardial TNF-α mRNA and ICAM-1 mRNA. The myocardial ultrastructure was observed and hemodynamic parameters were monitored.Results The myocardial damage was milder in the adenosine group than in the control group. The expression of myocardial TNF-α mRNA and ICAM-1 mRNA was significantly lower in the adenosine group than in the control group ( P＜0.05).Conclusion Adenosine preconditioning can attenuate myocardial ischemia-reperfusion injury in patients undergoing OPCABG through down-regulating the expression of myocardial TNF- mRNA and ICAM-1 mRNA.

Objective To explore liver protective effects of the stems and leaves and roots of Scutellariae Radix from different areas of Gansu Province;To discuss differences in liver protection of the stems and leaves and roots of Scutellariae Radix. Methods All Kunming mice were randomly divided into 11 groups:normal group, model group, positive control group, Scutellariae Radix root groups and Scutellariae Radix stem-leaf groups of Longxi, Minxian, Weiyuan, Zhangxian. The mice received gavage with relevant medicine once a day for 7 days. 2 hours after the last medication, the mice were given peritoneal injection with 0.1%CCl4 and olive oil to establish the models with liver injury. Hepatic index, the activity of serum ALT and AST, the levels of T-AOC in the liver tissue were calculated in 18 hours after establishing the models. Results Compared with the model group, hepatic index, the activity of serum ALT and AST in the mice of Scutellariae Radix root groups from difference producing areas decreased significantly (P<0.05);the levels of T-AOC in the liver tissue was raised notably (P<0.05). Compared with stem-leaf groups from the same producing area, hepatic index, the activity of ALT and AST in the mice of Scutellariae Radix root groups were remarkably lower than these of Scutellariae Radix stem-leaf groups (P<0.05);the levels of T-AOC in the liver tissue was evidently higher than that of Scutellariae Radix stem-leaf group (P<0.05). Conclusion Scutellariae Radix root water decoction can prevent and protect CCl4-induced acute liver injury to a certain degree, while Scutellariae Radix stem-leaf water decoction shows no significant protective effect on acute liver injury.

Background Clinical studies indicated that the pathogenesis of most corneal dystrophy is associated with the mutation of the transforming growth factor beta-induced (TGFBI) gene.However,the molecular mechanism of mutated TGFBI gene in corneal dystrophy is unclear. Objective The present study was to investigate the expression of the TGFBI gene in human corneal tissue and cells in vitro.MethodsHuman corneal epithelial cells and keratocytes were cultured and passaged,and donor corneal tissue was obtained for the section preparation.RT-PCR was used to detect the expression of TGFBI mRNA in human corneal tissue and cells.Immunofluorescence was used to test the expression of the TGFBI protein in the human corneal tissue,and immunohistochemistry was used to test the expression of the TGFBI protein in human corneal epithelial cells and corneal stromal cells.ResultsRT-PCR analysis showed that TGFBI mRNA could be detected as a 1274 bp band in human corneal tissue and corneal stromal cells,but no TGFBI mRNA was observed in corneal epithelial cells.Immunofluorescence assay revealed that corneal stromal cells were positive ly expressed for the TGFBI protein,but the corneal epithelial cells did not express the TGFBI protein.Immunohistochemistry indicated that the expression of TGFBI was detected the red fluoressence in the cytoplasm of corneal stromal cells;however,no positive response was found in corneal epithelial cells.ConclusionsThe expression of the TGFBI gene occurs in human corneal stromal cells but not in the corneal epithelial cells.This result might be of helpful for studying the function and role of TGFBI gene in pathogenesis of corneal dystrophy.

Pharmacokinetic analysis has attracted more and more attentions in the research field of bioactive natural product. However, there is limited study on the pharmacokinetics of polysaccharides. This paper focused on the research progresses of pharmacokinetics of polysaccharide, summarized the applications of chromatography, isotope labeling method, spectrophotometry, fluorospectrophotometry and biological assay in the analysis of polysaccharide pharmacokinetics, elucidated the behaviors of absorption, distribution, degradation and excretion of polysaccharide in experimental animals, and revealed the effects of physicochemical characteristic, administration dose and route on the pharmacokinetic properties of polysaccharide, which could be served as a reference for the related works.
Administration, Oral ; Animals ; Injections ; Intestinal Absorption ; Metabolic Clearance Rate ; Molecular Weight ; Polysaccharides ; administration & dosage ; analysis ; pharmacokinetics ; urine ; Tissue Distribution

Neuroglobin(Ngb)is one of the members of oxygen-carrying globin family.It mainly exists in neurons in a monomeric form,which is closely correlated the oxygen supply to brain.Brain hypoxia/ischemia can induce the high expression of Ngb,and as an endogenous neuroprotective factor,it protects ischemic neurons from ischemia/hypoxia injury.This article reviews the distribution,structure and function of Ngb,and its potential protective effects and mechanisms in cerebral ischemia/hypoxia cerebral injury.

Adolescent ; Adult ; Carbon Monoxide Poisoning ; epidemiology ; China ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Young Adult

Objective To investigate the value of high-frequency ultrasound in diagnosis of thyroid carcinoma by comparative analysis of high-frequency ultrasound and spiral CT imaging results. Methods The imaging results of patients with thyroid carcinoma proved by postoperative pathology or biopsy results were reviewed.High-frequency ultrasound and spiral CT were used to examine the 35 patients in The Tumor Hospital of Harbin Medical University between 2007 and 2009. Results Diagnosis of thyroid carcinoma by application of Highfrequency ultrasound were 27 cases, diagnosis rate was 77.1%(27/35);by spiral CT were 25 cases, diagnosis rate was 71.4% (25/35);comparison of the two methods showed no significant difference (x2= 0.3, P ＞ 0.05). Combined application of high-frequency ultrasound and spiral CT diagnosed 33 patients with thyroid carcinoma, diagnosis rate was 94.3%(33/35), which was significantly higher than that of high-frequency ultrasound alone or that of spiral CT alone(compared with high-frequency ultrasound, x2 = 4.2, P ＜ 0.05;and spiral CT, x2 = 6.4, P ＜ 0.05). Conclusion Combined application of high-frequency ultrasound and spiral CT can improve the diagnosis rate of thyroid carcinoma.

Objective To investigate quality of life and its influencing factors among elderly women with urinary incontinence(UI) living at nursing homes in Beijing. Method A randomized method was used to select six districts in Beijing. All the nursing homes in these 6 districts were included in our study,642 eligible elderly women participated in the survey. Quality of life of 244 women who were identified with different type UI were assessed. Bivariate analysis and multiple analysis were performed. Results The average score of quality of life was 8.5 ± 6.6. Scores of social embarrassment, activity & limiting behavior, psychosocial impacts were 1.8 ± 1.4,4.0 ± 3.5 and 3.3 ± 2.7 respectively. In bivariate analysis, significant differences were found by type of UI, severity of UI,course of UI, health condition, income level and self-care ability. In multiple analysis after adjustment of other variables, UI course≥5 years and inability to take care of herself were risk factors of quality of life.Conclusion Quality of life of elderly women with UI is poor, specific nursing and treatment should be conducted.