BACKGROUND Progestins in combination with estrogen are believed to have different effects on the cardiovascular system. The aim of this study was to investigate the influence of different oral contraceptive formulations on the development of experimental atherosclerosis and vascular reactivity. METHODS A total of 160 sexually mature rabbits were ovariectomized and randomly assigned to equally...

Background: Angiogenesis, which is the development of new capillaries from existing blood vessels, occurs in both developing embryo and postnatal life. The growth solid tumours requires micro vessels; therefore, tumour expansion correlates with extent angiogenesis.Methods: A prospective study was conducted on bone marrow trephine biopsies 40 cases acute leukaemia diagnosed complete count, aspir...

The ability to form anastomoses with the host circulation is essential for vascular networks incorporated within cell-seeded bioengineered tissues. Here, we tested whether and how rapidly human endothelial colony forming cell (ECFC)/mesenchymal progenitor cell (MPC)-derived bioengineered vessels, originally perfused in one mouse, could become reperfused in a secondary mouse. Using in vivo label...

To facilitate the cell based robot research, we presented a micro-mechanical force measurement system for the biological muscle actuators, which utilize glucose as a power source for potential application in a human body or blood vessels. The system is composed of a micro-manipulator, a force transducer with a glass probe, a signal processor, an inverted microscope and video recoding system. Us...

BACKGROUND: There is an urgent need for better detection and understanding of vascular abnormalities at the micro-level, where critical nourishment cellular metabolic changes occur. This especially case structures such as midbrain hippocampus, both feeding draining vessels are quite small. The hippocampus a complex grey matter structure that plays important role in spatial episodic memory. It c...

Jaspreet Kaur, Dr. H.P.Sinha 1 Student, ECE, MMU, mullana University , Haryana, India, [email protected] 2 Associate Professor, ECE, MMU, mullana University , Haryana, India, [email protected] Abstract Ocular fundus image can provide information on pathological changes caused by local ocular diseases and early signs of certain systemic diseases. Automated analysis and interpretation of fund...

Introduction Vasculitis is a well recognized complication of rheumatoid arthritis tending to occur in individuals with severe seropositive nodular disease. It commonly affects small vessels, particularly the digital arteries where the lesion is usually intimal proliferation without significant arterial wall necrosis. Focal ischaemic micro-infarction often occurs, occasionally leading to localiz...

Regulation of water flow in an interconnected xylem vessel network enables plants to survive despite challenging environment changes that can cause xylem embolism. In this study, vulnerability to embolisms of xylem vessels and their water-refilling patterns in vascular bundles of maize leaves were experimentally investigated by employing synchrotron X-ray micro-imaging technique. A vascular bun...

The present study tested the hypothesis that angiotensin II plays a role in the regulation of placental vascular tone, which contributes to hypertension in preeclampsia. Functional and molecular assays were performed in large and micro placental and non-placental vessels from humans and animals. In human placental vessels, angiotensin II induced vasoconstrictions in 78.7% vessels in 155 tests, ...