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We have investigated the hypotheses that 1) bombesin activation of protein kinase C (PKC) results in the hydrolysis of sphingolipids and the production of ceramide and that 2) ceramide produced on activation by bombesin mediates sustained contraction of smooth muscle cells by activation of PKC and mitogen-activated protein (MAP) kinase. Ceramide production(More)
This research extends a method previously applied to music and philosophy [1], representing the evolution of art as a time-series where relations like dialectics are measured quantitatively. For that, a corpus of paintings of 12 well-known artists from baroque and modern art is analyzed. A set of 93 features is extracted and the features which most(More)
The source of early production of sn-1,2-diacylglycerol (DAG) has for a long time been exclusively linked to hydrolysis of phosphatidylinositol 4,5-diphosphate, which on receptor activation is hydrolyzed into DAG and inositol 1,4,5-trisphosphate. We have investigated the origin of lipid sources of DAG production in smooth muscle cells, in response to(More)
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