Acute Coronary Syndrome ; blood ; Aged ; Cell Membrane ; metabolism ; Female ; Humans ; Male ; Middle Aged ; Thromboplastin ; metabolism

Objective:The time-dependent changes of hypoxia-inducible factor-1? (HIF-1?) expression induced by CoCl_(2 ) treatment and the effects of genistein on the level of HIF-1? expression in human retinal pigment epithelium cells were studied. Methods:Using a confocal scanning laser microscope coupled to a computer, HIF-1? expression was determined. Results:CoCl_(2 ) treatment could significantly elevate the level of HIF-1? expression. At 0.5 hour after CoCl_(2 ) treatment, the highest level was observed. Genistein 50 ?mol/L, 100 ?mol/L, 200 ?mol/L could suppress HIF-1? expression in a concentration-dependent manner. Conclusions:These results suggested that genistein could inhibit HIF-1? expression induced by CoCl_(2).

NSP4, as the diarrhea-related protein of rotavirus, is becoming an attractive candidate for vaccine development. To compare the immunogenicity of NSP4 from different genetic groups, we constructed eukaryotic expression plasmids comprising the NSP4 genes from four different genetic types using the pCI vector. The recombinant vectors were designated as pCI-97B6, pCI-97S36, pCI-97S34 and pCI-97SZ8, respectively. Following the conformation of the transient expression of the constructs in 293 cells, the plasmids were respectively subjected to the 5 round i. m. inoculation of BALB/c mice. The specific antibodies against NSP4 as well as the IgG1/IgG2a subclasses of immunoglobulin in mice sera were examined with indirect ELJSA after each immunization. The results showed that the immunization of plasmids expression NSP4s could elicit not only humoral but also cellular immunity, but the humoral immune response is dominant. There is a difference of immunogenecity among the NSP4 of different genetic type. Further studies were needed to focus on the relationship between the immunogenicity and protection effect.

Oleanolic acid-precipitated calcium carbonate solid dispersion was prepared by using solvent evaporation method. The microscopic structure and physicochemical properties of solid dispersion were analyzed using differential scanning calorimetry and scanning electron microscopy (SEM). And its in vitro release also was investigated. The properties of the precipitated calcium carbonate was studied which was as a carrier of oleanolic acid solid dispersion. Differential scanning calorimetry analysis suggested that oleanolic acid may be present in solid dispersion as amorphous substance. The in vitro release determination results of oleanolic acid-precipitated calcium carbonate (1: 5) solid dispersion showed accumulated dissolution rate of.oleanolic acid was up to 90% at 45 min. Accelerating experiment showed that content and in vitro dissolution of oleanolic acid solid dispersion did not change after storing over 6 months. The results indicated that in vitro dissolution of oleanolic acid was improved greatly by the solid dispersion with precipitated calcium carbonate as a carrier. The solid dispersion is a stabilizing system which has actual applied value.
Calcium Carbonate ; chemistry ; Calorimetry, Differential Scanning ; Chemistry, Pharmaceutical ; Drug Carriers ; chemistry ; Drug Stability ; Microscopy, Electron, Scanning ; Oleanolic Acid ; chemistry ; Plant Extracts ; chemistry ; Solubility

Objective To demonstrate the diffusion tensor imaging(DTI)characteristics of multiple sclerosis(MS)plaques,periplaque white matter regions and normal appearing white matter (NAWM)regions in patients with MS,and to evaluate the clinical values of DTI and three-dimensional brain fiber tracking for the diagnosis of MS.Methods Conventional MRI and DTI were performed in 32 patients with MS and 32 age-matched control subjects.Fractional anisotropy(FA)and apparent diffusion coefficient(ADC)maps were generated and coregistered with T_2-weighted MR images,FA and ADC values were calculated in regions of interest in plaques,periplaque white matter regions,NAWM regions and white matter regions in control subjects.And three-dimensional brain fiber tracking maps were generated by using the DTI.Results TheADCwas(1.233?0.119)?10~(-3)mm~2/s in MS plaques,(0.973?0.098)?10~(-3) mm~2/s in periplaque white matter regions,(0.748?0.089)?10~(-3)mm~2/s in NAWM,and(0.620? 0.094)?10~(-3)mm~2/s in control subjects.The FA was 0.225?0.052 in MS plaques,0.311?0.050 in perip]aque white matter regions,0.421?0.070 in NAWM,and 0.476?0.069 in control subjects. Significant differences in FA and ADC values were observed among all white matter regions(P

The paper is to evaluate the efficacy and safety of Shenmai injection for chronic heart failure, retrieving the Pubmed, CBM, CNKI, Wanfang database and VIP database to comprehensively collect all types research report of Shenmai injection for chronic heart failure (CHF). Particularly wishing to point out, randomized controlled trials are include for the evaluation of effectiveness, which are statistically analyzed and evaluated by Rev-Man 5. 2. The current studies show that the improvement rate of NYHA classification of cardiac function of CHF patients and their related indexes figure such as LVEF, SV, CO, BNP, 6 min walking test value are all improved by the combination of Shenmai injection and foundation treatment. However, HR is almost no improvement. Meanwhile, serious ADR/AE of Shenmai injection for CHF isn't appear.
Drug Combinations ; Drugs, Chinese Herbal ; administration & dosage ; adverse effects ; therapeutic use ; Heart Failure ; drug therapy ; Humans

A lactoferrin-containing PEGylated liposome system (Lf-PLS) was developed and tested in vitro as a hepatoma-targeting drug delivery system. PEGylated liposomes (PLS) were successfully prepared using the thin film hydration method with peglipid post insertion. Lf was covalently conjugated onto the carboxyl terminal of DSPE-PEG2000-COOH on liposomes. Coumarin-6 was used to trace Lf-PLS with fluorescence. The cellular uptake of this system was carried out in asialoglycoprotein receptor (ASGPR) positive HepG2 cells via confocal microscopy and flow cytometry. The Lf-PLS liposome was observed as spherical or oval vesicles with the particle size around 130 nm, zeta potential about -30 mV and encapsulation efficiency more than 80%. The confocal microscopy images and flow cytometry data demonstrated that Lf-PLS resulted in significantly higher cell association by ASGPR positive HepG2 cells compared to PLS. The association between Lf-PLS and cells were dependent on the concentration, time and temperature, which was inhibited by pre-incubation with excessive free Lf. The results suggest that Lf-PLS has a good targeting effect on HepG2 cells in vitro. The targeting mechanism may be related to the specific binding of Lf and ASGPR on HepG2 cells, which guides Lf-PLS to the cell surface to induce an active endocytosis process. All these results demonstrated that Lf-PLS might be a potential drug delivery system in targeting hepatocellular carcinoma, which deserves more research on its targeting ability, antitumor efficiency, and metabolism in vivo for treatment of hepatomacellular carcinoma.
Asialoglycoprotein Receptor ; metabolism ; Carcinoma, Hepatocellular ; pathology ; Coumarins ; Drug Delivery Systems ; Endocytosis ; Hep G2 Cells ; drug effects ; Humans ; Lactoferrin ; pharmacology ; Liposomes ; Liver Neoplasms ; pathology ; Particle Size ; Phosphatidylethanolamines ; Polyethylene Glycols ; Thiazoles

To evaluate the properties of solidifying volatile oil with graphene oxide, clove oil and zedoary turmeric oil were solidified by graphene oxide. The amount of graphene oxide was optimized with the eugenol yield and curcumol yield as criteria. Curing powder was characterized by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The effects of graphene oxide on dissolution in vitro and thermal stability of active components were studied. The optimum solidification ratio of graphene oxide to volatile oil was 1:1. Dissolution rate of active components had rare influence while their thermal stability improved after volatile oil was solidified. Solidifying herbal volatile oil with graphene oxide deserves further study.
Calorimetry, Differential Scanning ; Clove Oil ; chemistry ; Curcuma ; chemistry ; Eugenol ; Graphite ; chemistry ; Microscopy, Electron, Scanning ; Oils, Volatile ; chemistry ; Oxides ; chemistry ; Plant Extracts ; chemistry ; Powders ; Sesquiterpenes

In order to evaluate the characteristics of the spray drying of total flavonoids of Epimedium extracts assisted with soybean polysaccharide, a certain percentage of soybean polysaccharide or polyvidone were added to the total flavonoids of Epimedium extract to conduct the spray drying. The effect of soybean polysaccharides against the wall sticking effect of the spray drying was detected, as well as the powder property of total flavonoids of Epimedium spray drying powder and the dissolution in vitro behavior of the effective component. Compared with the total flavonoids of Epimedium spray drying powder, soybean polysaccharide revealed a significant anti-wall sticking effect. The spray drying power which had no notable change in the grain size made a increase in the fluidity, improvement in the moisture absorption and remarkable rise in the dissolution in vitro behavior. It was worth further studying the application of soybean polysaccharide in spray drying power of traditional Chinese medicine.
Epimedium ; chemistry ; Flavonoids ; analysis ; Particle Size ; Polysaccharides ; chemistry ; Powders ; Soybeans ; chemistry

Clove oil and turmeric oil were absorbed by mesoporous carbon. The absorption ratio of mesoporous carbon to volatile oil was optimized with the eugenol yield and curcumol yield as criteria Curing powder was characterized by scanning electron microscopy (SEM) and differential scanning calorietry (DSC). The effects of mesoporous carbon on dissolution in vitro and thermal stability of active components were studied. They reached high adsorption rate when the absorption ratio of mesoporous carbon to volatile oil was 1:1. When volatile oil was absorbed, dissolution rate of active components had a little improvement and their thermal stability improved after volatile oil was absorbed by the loss rate decreasing more than 50%. Absorbing herbal volatile oil with mesoporous carbon deserves further studying.
Adsorption ; Carbon ; chemistry ; Drug Stability ; Microscopy, Electron, Scanning ; methods ; Oils, Volatile ; chemistry ; Sesquiterpenes ; chemistry