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    C. Lugnier

    ... Handbook of ELISPOT: Methods and Protocols, edited by Alexander E. Kalyuzhny, 2005 301. ... 239 19. Analysis of Dimerization Determinants of the PDE6 Catalytic Subunits Khakim G. Muradov, Kimberly K. Boyd, and Nikolai O. Artemyev........ more
    ... Handbook of ELISPOT: Methods and Protocols, edited by Alexander E. Kalyuzhny, 2005 301. ... 239 19. Analysis of Dimerization Determinants of the PDE6 Catalytic Subunits Khakim G. Muradov, Kimberly K. Boyd, and Nikolai O. Artemyev..... ...
    The distribution of phosphodiesterase (PDE) activities was studied in canine cardiac microsomal fractions separated by sucrose density gradient (fractions F1 to Fv1). These fractions were characterized by their 45Ca2+ uptake and release... more
    The distribution of phosphodiesterase (PDE) activities was studied in canine cardiac microsomal fractions separated by sucrose density gradient (fractions F1 to Fv1). These fractions were characterized by their 45Ca2+ uptake and release properties, [3H] ryanodine binding [used as sarcoplasmic reticulum (SR) markers] and their [3H]nitrendipine binding (as a T-system marker). The solubilized canine and human SR-enriched membranes were subjected to high performance liquid chromatography and the PDE forms were then analyzed for their kinetic properties and drug sensitivies. In human SR, a notable amount of PDE I hydrolyzing both cAMP and cGMP was characterized; however, its stimulation by calmodulin was reduced. Two selective cAMP-PDE forms were identified in the canine and human cardiac SR-enriched fractions. The major form presents the characteristics of PDE III: an apparent Km value of 0.29 and 0.35 microM in canine and human cardiac SR, respectively, potent inhibition by cGMP and AA...
    The linear and proximal benzo-separated analogues of 7-benzyl-3-isobutyl-1-methylxanthine, 3-isobutyl-1,8-dimethylxanthine, 3-isobutyl-8-tert-butyl-1-methylxanthine, 3-isobutyl-8-(methoxymethyl)-1-methylxanthine , and... more
    The linear and proximal benzo-separated analogues of 7-benzyl-3-isobutyl-1-methylxanthine, 3-isobutyl-1,8-dimethylxanthine, 3-isobutyl-8-tert-butyl-1-methylxanthine, 3-isobutyl-8-(methoxymethyl)-1-methylxanthine , and 1-isoamyl-3-isobutylxanthine have been prepared and assayed as inhibitors of the peak I and peak II forms of cyclic nucleotide phosphodiesterase from pig coronary artery. Most of the benzo analogues were less effective inhibitors of these phosphodiesterases when compared to 3-isobutyl-1-methylxanthine (IBMX) even though the active sites of both enzyme forms tolerated the stretched-out xanthines. Indeed, the linear benzo-separated analogue of 7-benzyl-IBMX was a more potent inhibitor of peak I activity than was IBMX.
    ... Permissions & Reprints. Separation of three cyclic-nucleotide-phosphodiesterases from bovine aorta. B. Ilien , A. Stierlé , C. Lugnier , JC Stoclet and Y. Landry. ... 3. Chasin, M. and Harris, DN (1976) in Advances in cyclic... more
    ... Permissions & Reprints. Separation of three cyclic-nucleotide-phosphodiesterases from bovine aorta. B. Ilien , A. Stierlé , C. Lugnier , JC Stoclet and Y. Landry. ... 3. Chasin, M. and Harris, DN (1976) in Advances in cyclic nucleotide research, vol 7, pp 225264. ...