Artemisinin extracted from Artemisia annua L. is the best medicine with the highest efficiency, the most effective and the lowest toxicity in treating ague nowadays. At present, most studies focus on artemisinin and its derivatives, while the study and report about the other active components are rare. This paper purposed to further discover new indication of Artemisia annua L. connecting with ...

Investigation to know the hemorrhagic and clotting mechanisms in very virulent (vv) infectious bursal disease virus (IBDV) infection of Malaysian isolate was carried out in chicks. One-hundred-ten, 32-dayold Specific-pathogen-free chicks were divided into IBD and control groups, each consisting 55 chicks. The IBD group was inoculated orally with 0.1 mL/chick of inoculums containing vvIBDV isola...

Involvement of platelet membrane glycoproteins (GP) in interactions between platelets and tumor cells was studied by using two human tumor cell lines and two monoclonal antibodies against platelet membrane GP. HMV-I cells derived from vaginal melanoma induced platelet aggregation in heparinized plasma, which was not followed by coagulation. M7609 cells derived from colon adenocarcinoma also ind...

Polymeric hollow spheres can be tailored as efficient carriers of various therapeutic molecules due to their tunable properties. However, the entry of these synthetic vehicles into cells, their cell viability and blood compatibility depend on their physical and chemical properties e.g. size, surface charge. Herein, we report the effect of size and surface charge on cell viability and cellular i...

The role of cadherins and the cadherin-binding cytosolic protein plakoglobin in intercellular adhesion was studied in cultured human umbilical venous endothelial cells exposed to fluid shear stress. Extracellular Ca2+depletion (<10-7 M) caused the disappearance of both cadherins and plakoglobin from junctions, whereas the distribution of platelet endothelial cell adhesion molecule 1 (PECAM-1) r...

This study provides a method to assess the impact of circulating plasma factors on microvascular integrity by using recently developed microvessel-on-a-chip platform featuring human endothelium that is partly surrounded extracellular matrix. The system high-throughput, which allows parallel analysis organ-level microvessel pathophysiology, including vascular leakage. Ethylenediaminetetraacetic ...

Feeding a butter-rich diet to rats induced a "hypercoagulable state," since multiple large thrombi were observed in response to injection of S. typhosa endotoxin but the same stimulus was ineffective in rats fed a corn oil-rich diet or laboratory chow. In vitro hypercoagulability was noted in blood from the butter-fed rats, the recalcification plasma clotting time (PCT) being reduced by 34 to 4...

A tri-block-coupling polymer, "PEO-MDI-PEO" ["poly(ethylene oxide)-4,4'-methylene diphenyl diisocyanate-poly(ethylene oxide)", abbreviated "MPEO"], was used to react with a triazine dye, Cibacron Blue F3G-A (ciba), in an alkaline environment. The product of this nucleophilic reaction was a penta-block-coupling polymer, "ciba-PEO-MDI-PEO-ciba" (abbreviated "cibaMPEO"). The cibaMPEO-modified poly...

Haliclona tubifera, marine sponge species abundant in Brazilian coastline, presents only a few papers published in the literature. Recently, we have reported the isolation of two modified C18 sphingoid bases: (2R,3R,6R,7Z)-2-aminooctadec-7-ene-1,3, 6-triol and and (2R,3R,6R)-2-aminooctadec-1,3,6-triol. In order to continue our research, in this work aimed at the biological investigation of frac...

In patients with lupus anticoagulants (LA), acquired resistance to activated protein C (APC) is difficult to demonstrate with clot-based assays due to the presence of the anticoagulant. Via the conversion of a fluorogenic substrate (thrombinography), we monitored the complete process of thrombin formation and decay and its delimitation by the protein C system in eight consecutive LA-patients wi...