Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Robert M. Grossfeld"'
Autor:
J.A Engler, J.C Harkins, J.M Gottesman, Robert M. Grossfeld, A.K Urazaev, Edward M. Lieberman
Publikováno v:
Neuroscience. 114:699-705
Glutaminase of crayfish axons is believed to participate in recycling of axon-glia signaling agent(s). We measured the activity and properties of glutaminase in crude homogenates of crayfish CNS, using ion exchange chromatography to separate radiolab
Publikováno v:
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology. 133:209-220
We have proposed that N-acetylaspartylglutamate (NAAG) or its hydrolytic product glutamate, is a chemical signaling agent between axons and periaxonal glia at non-synaptic sites in crayfish nerves, and that glutamine is a probable precursor for reple
Publikováno v:
Glia. 38:80-86
Electrical stimulation of crayfish giant axons at high frequency activates group II metabotropic and NMDA glutamate receptors on adjacent glial cells via release of N-acetylaspartylglutamate and glutamate formed upon its hydrolysis. This produces a t
Autor:
J.G Buttram, Robert M. Grossfeld, Edward M. Lieberman, J.P Deen, A. Kh. Urazaev, B Sh Gafurov, B.S Slusher
Publikováno v:
Neuroscience. 107:697-703
Crayfish nerve fibers incubated with radiolabeled glutamate or glutamine accumulate these substrates and synthesize radioactive N -acetylaspartylglutamate (NAAG). Upon stimulation of the medial giant nerve fiber, NAAG is the primary radioactive metab
Publikováno v:
Neuroscience. 106:227-235
Glial cell hyperpolarization previously has been reported to be induced by high frequency stimulation or glutamate. We now report that it also is produced by the glutamate-containing dipeptide N-acetylaspartylglutamate (NAAG), by its non-hydrolyzable
Autor:
Robert M. Grossfeld
Publikováno v:
Integrative and Comparative Biology. 48:439-441
Autor:
Rebecca A. Sheller, Martis L. Ballinger, George D. Bittner, Robert M. Grossfeld, Mark E. Smyers
Publikováno v:
The Journal of Comparative Neurology. 396:1-11
To characterize heat-shock proteins (HSPs) of the 70-kDa family in the crayfish medial giant axon (MGA), we analyzed axoplasmic proteins separately from proteins of the glial sheath. Several different molecular weight isoforms of constitutive HSP 70s
Publikováno v:
Environmental Toxicology and Chemistry. 16:1755-1760
Sago pondweed (Potamogeton pectinatus L.) was exposed to CdCl{sub 2} to evaluate peroxidase (POD) activity and stress protein (SP) synthesis as potential biomarkers of contaminant stress in an aquatic plant. Peroxidase activity did not increase in sa
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 116:43-49
Because marine bivalves are osmoconformers, their cells may be exposed to widely fluctuating osmolality in some habitats. In vitro studies were conducted to evaluate the effect of changes in salinity on protein synthesis of oyster hemocytes. Increasi
Publikováno v:
Glia. 14:198-208
Two of the key enzymes involved in glutamate metabolism, glutaminase and glutamine synthetase, were quantitatively localized to axons and glia of the crayfish giant nerve fiber by immunocytochemistry and electron microscopy of antibody-linked gold mi