Nitric oxide synthase activity in molluscan hemocytes

Nitric oxide synthase activity in the molluscan CNS.

Putative nitric oxide synthase (NOS) activity was assayed in molluscan CNS through histochemical localization of NADPH-diaphorase and through measurement of L-arginine/L-citrulline conversion. Several hundreds of NADPH-dependent diaphorase-positive neurons stained consistently darkly in the nervous system of the predatory opisthobranch Pleurobranchaea californica, whereas stained neurons were r...

Nitric oxide and nitric oxide synthase activity in plants.

Research on NO in plants has gained considerable attention in recent years mainly due to its function in plant growth and development and as a key signalling molecule in different intracellular processes in plants. The NO emission from plants is known since the 1970s, and now there is abundant information on the multiple effects of exogenously applied NO on different physiological and biochemic...

Comparison of inducible nitric oxide synthase activity in pancreatic islets of young and aged rats

Objective(s):Some pathologic situations such as diabetes and metabolic syndrome are associated with alternation in nitric oxide level. Incidence of these condition increases with aging. On the other hand, insulin secretion is modulated by nitric oxide, and nitric oxide synthase (NOS) activity is also altered in diabetes. In this study, modification in the enzyme activity associated with aging a...

Nitric Oxide Synthase Activity and Tumor Progression

1 The Role of Nitric Oxide Synthase Uncoupling in Tumor Progression Christopher S. Rabender, Asim Alam, Gobalakrishnan Sundaresan, Robert J. Cardnell, Vasily A. Yakovlev, Nitai D. Mukhopadhyay, Paul Graves, Jamal Zweit, Ross B. Mikkelsen Department of Radiation Oncology, Department of Radiology and Center for Molecular Imaging, Department of Biostatistics, Virginia Commonwealth University, Rich...

Tetrahydrobiopterin and endothelial nitric oxide synthase activity.