Age dependent changes in phosphatidylserine (PS) externalization were studied in mouse erythrocytes of different age groups (range 1-55 days) by using a newly developed double in vivo biotinylation (DIB) technique. Around 3-4% of the erythrocytes freshly released in the circulation were PS(+) but this proportion fell rapidly to 1% or less and did not increase at later time points. Blocking eryt...

erythrocytes has been illustrated in some studies. Nikinmaa and Jensen (1986) observed a complete lack of β-adrenergic responses in erythrocytes of rainbow trout acclimated to winter conditions. Cossins and Kilbey (1989) observed that the adrenergic response of rainbow trout erythrocytes was reduced in winter fish. Similarly, our recent studies have shown that adrenergic activation of the Na+/H...

Filterability (deformability) of erythrocytes of patients with Raynaud's phenomenon together with progressive systemic sclerosis (PSS) was decreased compared with the filtration of erythrocytes from normal subjects. PSS erythrocytes showed lower electrophoretic velocity and about 23% less neuraminidase-removable sialic acid density on their surface than the normal erythrocytes. PSS erythrocytes...

Erythrocytes, also known as red blood cells, and have been extensively studied for their potential carrier capabilities for the delivery of drugs. Such drug-loaded carrier erythrocytes are prepared simply by collecting blood samples from the organism of interest, separating erythrocytes from plasma, entrapping drug in the erythrocytes, and resealing the resultant cellular carriers, these carrie...

Decay-accelerating factor (DAF) and complement receptor 1-related gene/protein y (Crry) are two membrane-bound complement regulators on murine erythrocytes that inhibit C3/C5 convertases. Previously, we found that Crry- but not DAF-deficient erythrocytes were susceptible to alternative pathway complement-mediated elimination in vivo. To determine whether it is a unique activity or a higher leve...

Plasmodium falciparum gametocytes modify the mechanical properties of their erythrocyte host to persist for several weeks in blood circulation and be available mosquitoes. These changes are tightly regulated by plasmodial phosphodiesterase delta that decreases both stiffness permeability infected cell. Here, we address effect inhibitor tadalafil on deformability gametocyte-infected erythrocytes...

Streptococcus pneumoniae, a Gram-positive bacterium, is a major cause of invasive infection-related diseases such as pneumonia and sepsis. In blood, erythrocytes are considered to be an important factor for bacterial growth, as they contain abundant nutrients. However, the relationship between S. pneumoniae and erythrocytes remains unclear. We analyzed interactions between S. pneumoniae and ery...

The present study investigated the antioxidant activity of ethanol extracts leaves Satureja montana and their influence on membrane stability erythrocytes ex vivo. showed a very potent EC50 = 0.055mg/ml. Rat blood samples were treated with 96% in different concentrations 100 ?g/ml, 200 300 morphological analyses carried out. results significant differences shape incubated higher extract concent...

Wallace, W. R. (Louisiana State University, Baton Rouge), and G. T. Dimopoullos. Catalase activity in Anaplasma marginale. J. Bacteriol. 91:309-311. 1965.-Extracts of erythrocytes infected with Anaplasma marginale were found to contain more catalase activity than normal erythrocytic preparations. The increase in catalase activity appeared concurrently with increases in the number of erythrocyte...

The interaction of static magnetic field (SMF) with living organisms is a rapidly growing field of investigation. Recently, exposure to moderate intensity SMFs (1 mT – 1 T) has attracted much attention for its various medical applications. This study was designed to show the microscopic effect of SMF on erythrocytes in vitro. For this purpose SMF system was constructed in my lab on basis of the...