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  • Title: Segmental differences in morphogenetic activity of arterial smooth muscle cells. Histochemical and radioautographic studies.
    Author: Hadjiisky P, Jurukova Z, Renais J, Scebat L.
    Journal: Connect Tissue Res; 1978; 6(2):73-81. PubMed ID: 152689.
    Abstract:
    Differences in morphogenetic and metabolic activities of the arterial smooth muscle cells (s.m.c.) of the young rat's aorta and femoral artery were studied by histochemical, radiochemical and quantitative radioautographic methods. 3H-proline was found to be incorporated into the medial myocyte of both vessels and released into the extracellular connective tissue matrix during the first 6 hours. The intracellular and extracellular phases of this process were similar to those of other scleroprotein-synthesizing cells. The 3H-proline incorporation, the metachromasia (GAG) and the activities of acetyl-cholinesterase, beta-glucuronidase, aryl-sulfatase and 5'-nucleotidase were more intense in the aortic media. On the other hand, some oxido-reductases linked with cellular respiration, glycogenolysis and energy production as well as the myosin-ATPase and MAO activities are more intense in the femoral artery. These differences suggest the morpho-functional diversity of the arterial s.m.c.: greater morphogenetic activity of the aortic myocyte; earlier and higher contractile differentiation of the femoral one.
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