breakthrough bleeding (btb) is the cause of 50% of discontinuations of use by long-acting progestogen-only contraceptive users. btb appears to be associated with capillaries of abnormal morphology and fragility. disturbances in vessels integrity, intercellular junctions or alteration of the basement membrane (bm) composition has been proposed to contribute toward the fragility of these capillar...

This paper presents an exact analytical solution for two-dimensional conductive heat transfer in spherical composite pressure vessels .The vessels are in spherical shape and fibers are winded in circumferential direction. The analytical solution is obtained under the general boundary conditions which consist of convection, conduction and radiation inside/outside of vessel. The heat transfer equ...

introduction:adenosine as a potent vasodilator has physiological role in regulation of regional cerebral blood flow (rcbf). metod: laser-dِoppler flowmetry technique was used to study pial vessels blood flow responses to adenosine receptors agonists and antagonist. male sprague dawley rats (250-350g) that were housed in standard conditions, were anesthetized with urethane (1.5g/kg). adenosine (g...

conclusions the data indicated that co-administration of grape seed extract and exercise training had more significant effects than exercise training or grape seed extract alone; this may constitute a convenient and inexpensive therapeutic approach to diabetic vascular complications. results the endothelium dependent vasorelaxation to acetylcholine was reduced significantly in diabetic animals;...