Cytomegalovirus Infections ; complications ; Female ; Humans ; Infant ; Male ; Nephrotic Syndrome ; etiology

OBJECTIVE:To develop a HPLC method for simultaneous determinatio n of ofloxacin and dexamethasone ac?etate in compound ofloxacin ear drops.METHODS:The analysis was carried on a XDB-C 8 ,the mobile phase was composed of methanol-potassium dihydrogen phosphate(0.02mol/L)by gradient elution,the flow rate was1.0ml/min,the column tem?perature was30℃and the detection wavelength was at240nm.RESULTS:The detectable concentrations of ofloxacin and dexamethasone acetate showed good linear correlation in the ranges of100～500?g/ml and10～30?g/ml respectively,the av?erage recoveries of ofloxacin and dexamethasone acetate were100.6%(RSD=0.46%,n=9)and101.3%(RSD=0.72%,n=9)respectively.CONCLUSION:The method is accurate and reproducible and can be used for determination of ofloxacin and dexamethasone acetate in compound ofloxacin ear drops.

Objective To design and synthesize targeting nuclear factor-?B (NF-?B) decoy-oligodeoxynucleotides (ODNs) and measure their anti-inflammatory actions. Methods Peritoneal macrophages ? (pM?) cells extracted from rats were randomly divided into normal control group, lipopolysaccharides (LPS)-stimulated group (Group A), decoy-ODNs treated group (Group B), non-decoy-ODNstreated group (Group C) and cationic liposome treated group (Group D). Supernatants and cells in the control group and the Group A were collected 1,2,6,12,18 and 24 hours after LPS stimulation. By using cationic liposomes in a ratio of 4:1 in quantity, pM? cells were transfected by decoy-ODNs at concentrations of 2 mg/L,4 mg/L and 8 mg/L respectively and stimulated with LPS 6 hours later. Then, supernatants and cells were collected 8, 12 and 18 hours after transfection. The expression changes and the distribution of p65 were analyzed by immunocytohistochemical method, the protein expressions of tumor necrosis factor ? (TNF?), interleukin-6 (IL-6) and interleukin-10 (IL-10) in the supernatants by enzyme-linked immunosorbent assay (ELISA) and mRNA transcriptions of TNF?,IL-6 and IL-10 by reverse transcriptase polymerase chain reaction (RT-PCR). Results Decoy-ODNs at concentration of 4 mg/L and 8 mg/L could markedly inhibit the expression and transcription of TNF? and IL-6 of pM? cells in a dose-dependent fashion but had a weak inhibitive effect on the expression and transcription of IL-10. Conclusions The targeting NF-?B Decoy-ODNs can suppress the expressions of inflammatory mediators in pM? cells.

Aged ; Alzheimer Disease ; drug therapy ; physiopathology ; Brain ; physiopathology ; Chitosan ; pharmacology ; therapeutic use ; Electroencephalography ; Female ; Humans ; Male ; Phospholipids ; pharmacology ; therapeutic use

Objective To investigate the effect of physical training on plasma N-terminal pro-brain natri- uretic peptide(NT-proBNP)levels in patients with chronic heart failure(CHF).Methods Eighty NYHAⅡ-ⅢCHF patients were randomly divided into a training group(n=42)and a control group(n=38).A 6-minute walk- ing test was performed within 24 hours after the patients were admitted.The 6-minute walking distance and plasma NT-proBNP levels were determined before and after 8 weeks of programmed physical training.The patients of both groups were treated with routine drugs for heart failure.6-minute walk training was only performed in the training group twice a day for 8 weeks.Results Physical training could significantly reduce plasma NT-proBNP levels and improve performance on the 6-minute walking test.Conclusions Physical training could significantly reduce plas- ma NT-proBNP levels and improve the motor function of patients with CHF,and could be helpful in delaying the de- velopment of CHF.

Objective To investigate the roles of adrenomedullin(ADM) and endothelin-1(ET-1) in left-to-right shunt congenital heart disease(CHD) complicated with congestive heart failure(CHF).Methods Plasma ADM and ET-1 concentrations were measured by radioimmunoassay in heart failure stage and recovery period of 18 infants with left-to-right shunt CHD.Also 20 healthy infants acted as control group were measured.Results Plasma concentrations of ADM and EF-1 were significantly higher in heart failure stage of left-to-right CHD infants than those in their recovery period,and both in their heart failure stage and in their recovery period were higher than that in control group(P

Objective To construct a luciferase reporter plasmid containing interferon regulatory factor 3(IRF-3)human gene promoter and to evaluate promoter activity in human embryonic kidney(HEK)-293 cells.Methods The 1 000 bp fragment was amplified by PCR with human genomic DNA as a template and was directionally cloned into pGL3-basic multiple cloning sites to construct the luciferase repor-ter plasmid pGL3-pIRF-3.Transfection of HEK-293 cells with the promoter-driven lucife-rase construct was performed to induce lucife-rase gene expression and calculate the relative luciferase activity unit(RLU).Promoter sequence of 1 000 bp upstream of transcription initiation site of IRF-3 was analyzed by using Promoter 2.0 Prediction software.Results DNA sequencing and restriction endonuclease analysis verified the successful construction of the plasmid pGL3-pIRF-3.This IRF-3 promoter exhibited a strong promoter activity with an increase of 42.2-fold of RLU in HEK-293 cells when compared with pGL-3 basic vector.The transfection experiment confirmed that the levels of its activation were significantly higher than that in controls in HEK-293 cells.Function analysis of IRF-3 promoter disclosed seve-ral GATA-1 and specific protein 1(Sp1) sites and E2F in minimal promoter region.Conclusion The plasmid pGL3-pIRF-3 promoter is successfully constructed and has a strong basal promoter activity in HEK-293 cells.

DNA methylation is closely related to the genesis and development of glioma.The CpG islands hypermethylation in promoter region of DNA repair genes,cell cycle controlling genes,apoptosis related genes,tumor suppressor genes and invasion related genes are found in glioma.Finding the specific methylation profile and molecular marker of glioma is helpful for the pathology class,early diagnosis and prognostic evalua-tion.Meanwhile,DNA methylation has the characteristic of reversibility,which may provide new ways for the treatment of glioma.

Atherosclerosis is the most important cause of ischemic stroke. microRNAs can play an important role in the lipid metabolism, vascular inflammatory response, angiogenesis, as wel as smooth muscle cel proliferation and phenotypic conversion, etc. by regulating the functions of vascular endothelial cel s, vascular smooth muscle cel s, and mononuclear macrophages. It is closely associated with the occurrence and development of atherosclerosis. This article mainly reviews the regulatory effect of microRNAs on lipid metabolism and vascular inflammatory response in pathogenesis of atherosclerosis.

The paper introduced the general picture of Xiangya Hospital in the past five years in its development of ahigh-level research hospital of international influence.Aiming at this strategic goal, the hospital proceeds by means of discipline development,talent training,research platform building, international academic exchange,performance appraisal and incentive,budget guarantee and system development.All these efforts contribute to the building of a mutual-supportive,efficient and sustainable medical science innovation system tailored to large hospitals.