Jean-Louis Bény

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Many experimental studies have shown that arterial smooth muscle cells respond with cytosolic calcium rises to vasoconstrictor stimulation. A low vasoconstrictor concentration gives rise to asynchronous spikes in the calcium concentration in a few cells (asynchronous flashing). With a greater vasoconstrictor concentration, the number of smooth muscle cells(More)
Upon agonist stimulation, endothelial cells trigger smooth muscle relaxation through the release of relaxing factors such as nitric oxide (NO). Endothelial cells of mouse aorta are interconnected by gap junctions made of connexin40 (Cx40) and connexin37 (Cx37), allowing the exchange of signaling molecules to coordinate their activity. Wild-type (Cx40(+/+))(More)
Soy and soy-based products are widely consumed by infants and adult individuals. There has been speculation that the presence of isoflavone phytoestrogens in soybean cause adverse effects on the development and function of the male reproductive system. The purpose of this study was to examine the influence of dietary soy and phytoestrogens on testicular and(More)
Adenosine 5'-triphosphate (ATP) activated two sequential responses in freshly isolated mouse aortic smooth muscle cells. In the first phase, ATP activated Ca(2+)-dependent K(+) or Cl(-) currents and the second phase was the activation of a delayed outward current with a reversal potential of -75.9 +/- 1.4 mV. A high concentration of extracellular K(+) (130(More)
The goal of the present study is to construct a biophysical model of the coronary artery endothelial cell response to bradykinin. This model takes into account intracellular Ca2+ dynamics, membrane potential, a non-selective cation channel, and two Ca(2+)-dependent K+ channels, as well as intra- and extracellular Ca2+ sources. The model reproduces the(More)
Smooth muscle contraction is regulated by changes in cytosolic Ca(2+) concentration ([Ca(2+)](i)). In response to stimulation, Ca(2+) increase in a single cell can propagate to neighbouring cells through gap junctions, as intercellular Ca(2+) waves. To investigate the mechanisms underlying Ca(2+) wave propagation between smooth muscle cells, we used primary(More)
© 201 This research work describes the design and simulation of hexapod robot which is under construction for The robo was chosen because of its incredible running and hiking capabilities. The robot is considered with six legs. The fr back legs, five, four, and three degree of DOF correspondingly, to allow it to a brain onto which additional sensory(More)
Securing information from obtrudes is the miscellaneous process in communication, cryptography is an effective manner of securing the information. New architecture is designed in this paper based on Fisher Yates Shuffle algorithm to maintain secrecy of data. A newly modified magic rectangle (NMMR) is constructed based few constrains, like sum of row and(More)
THE ARTERIAL SYSTEM secures an adequate supply of blood to organs. In many vessels, cyclic variations of the arterial diameter, a phenomenon called vasomotion, may contribute to the regulation of blood flow. Vasomotion is generated by synchronous oscillations in the cytosolic calcium concentration of adjacent smooth muscle cells (SMCs). Gap junctions(More)
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