| Publication |
Sentence |
Publish Date |
Extraction Date |
Species |
| R Rodnight, C A Gonçalves, S T Wofchuk, R Lea. Control of the phosphorylation of the astrocyte marker glial fibrillary acidic protein (GFAP) in the immature rat hippocampus by glutamate and calcium ions: possible key factor in astrocytic plasticity. Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas. vol 30. issue 3. 1997-11-13. PMID:9246230. |
control of the phosphorylation of the astrocyte marker glial fibrillary acidic protein (gfap) in the immature rat hippocampus by glutamate and calcium ions: possible key factor in astrocytic plasticity. |
1997-11-13 |
2023-08-12 |
rat |
| R A Swanson, K Farrell, B A Stei. Astrocyte energetics, function, and death under conditions of incomplete ischemia: a mechanism of glial death in the penumbra. Glia. vol 21. issue 1. 1997-10-23. PMID:9298857. |
glutamate uptake was reduced during hypoxia and further reduced during hypoxia with acidosis, consistent with the changes in astrocyte atp. |
1997-10-23 |
2023-08-12 |
Not clear |
| O Sorg, T F Horn, N Yu, D L Gruol, F E Bloo. Inhibition of astrocyte glutamate uptake by reactive oxygen species: role of antioxidant enzymes. Molecular medicine (Cambridge, Mass.). vol 3. issue 7. 1997-09-22. PMID:9260155. |
inhibition of astrocyte glutamate uptake by reactive oxygen species: role of antioxidant enzymes. |
1997-09-22 |
2023-08-12 |
Not clear |
| S Vesce, P Bezzi, D Rossi, J Meldolesi, A Volterr. HIV-1 gp120 glycoprotein affects the astrocyte control of extracellular glutamate by both inhibiting the uptake and stimulating the release of the amino acid. FEBS letters. vol 411. issue 1. 1997-09-11. PMID:9247152. |
hiv-1 gp120 glycoprotein affects the astrocyte control of extracellular glutamate by both inhibiting the uptake and stimulating the release of the amino acid. |
1997-09-11 |
2023-08-12 |
Not clear |
| S Vesce, P Bezzi, D Rossi, J Meldolesi, A Volterr. HIV-1 gp120 glycoprotein affects the astrocyte control of extracellular glutamate by both inhibiting the uptake and stimulating the release of the amino acid. FEBS letters. vol 411. issue 1. 1997-09-11. PMID:9247152. |
here we demonstrate that the levels at which the viral glycoprotein affects glutamate homeostasis of astrocyte cultures are at least two: not only the inhibition of uptake, due to an effect at site(s) away from the transporters of the amino acid but also a slow stimulation of release. |
1997-09-11 |
2023-08-12 |
Not clear |
| H L Lin, S Murph. Regulation of astrocyte nitric oxide synthase type II expression by ATP and glutamate involves loss of transcription factor binding to DNA. Journal of neurochemistry. vol 69. issue 2. 1997-08-12. PMID:9231718. |
regulation of astrocyte nitric oxide synthase type ii expression by atp and glutamate involves loss of transcription factor binding to dna. |
1997-08-12 |
2023-08-12 |
Not clear |
| M C Longuemare, R A Swanso. Net glutamate release from astrocytes is not induced by extracellular potassium concentrations attainable in brain. Journal of neurochemistry. vol 69. issue 2. 1997-08-12. PMID:9231751. |
to answer this question, astrocyte cultures prepared from rat and mouse cortices were incubated in medium with elevated [k+]e (by equimolar substitution of k+ for na+), and glutamate accumulation was measured by hplc. |
1997-08-12 |
2023-08-12 |
mouse |
| K Biber, K N Klotz, M Berger, P J Gebicke-Härter, D van Calke. Adenosine A1 receptor-mediated activation of phospholipase C in cultured astrocytes depends on the level of receptor expression. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 17. issue 13. 1997-07-17. PMID:9185533. |
however, an a1 receptor-mediated increase in extracellular glutamate was suggested to be responsible for the potentiating effect in mouse astrocyte cultures. |
1997-07-17 |
2023-08-12 |
mouse |
| K Biber, K N Klotz, M Berger, P J Gebicke-Härter, D van Calke. Adenosine A1 receptor-mediated activation of phospholipase C in cultured astrocytes depends on the level of receptor expression. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 17. issue 13. 1997-07-17. PMID:9185533. |
it is reported here that (1) adenosine a1 receptor mrna as well as receptor protein is present in astrocytes from all brain regions, (2) a1 receptor-mediated inhibition of adenylyl cyclase is of similar extent in all astrocyte cultures, (3) the a1 receptor-mediated potentiation of plc activity requires higher concentrations of agonist than adenylyl cyclase inhibition and is dependent on the expression level of a1 receptor, and (4) the potentiating effect on plc activity is unrelated to extracellular glutamate. |
1997-07-17 |
2023-08-12 |
mouse |
| K A Rudolphi, P Schuber. Modulation of neuronal and glial cell function by adenosine and neuroprotection in vascular dementia. Behavioural brain research. vol 83. issue 1-2. 1997-07-09. PMID:9062670. |
when this threshold is overcome, adenosine seems to stimulate astrocyte differentiation and reinforce important protective astrocyte functions, e.g., synthesis and release of neurotrophic factors such as ngf and the clearance of abnormal neurotoxic levels of k+ and glutamate from the extracellular space. |
1997-07-09 |
2023-08-12 |
Not clear |
| Y Watanabe, I Hara, J Li, T Matsumiy. [Interaction between neurons and astrocytes involved in brain regulatory function as assessed by in vitro brain ischemia models]. Nihon yakurigaku zasshi. Folia pharmacologica Japonica. vol 109. issue 3. 1997-05-30. PMID:9108560. |
in our research using the in vitro brain ischemia model, it was demonstrated that the neuronal death induced by excessive amounts of glutamate (glu) under low energy conditions (hypoglycemia, hypoxia, particularly acidosis) is caused by dysfunctions of astrocyte glu uptake and glutamine (gln) output systems, and neural death can be modulated by the number of surrounding astrocytes in the cultured brain cells. |
1997-05-30 |
2023-08-12 |
Not clear |
| R K Lee, R J Wurtma. Metabotropic glutamate receptors increase amyloid precursor protein processing in astrocytes: inhibition by cyclic AMP. Journal of neurochemistry. vol 68. issue 5. 1997-05-15. PMID:9109507. |
neurotransmitter receptors that increase phosphatidylinositol hydrolysis generate second messengers that activate protein kinase c. here, we used metabotropic glutamate receptor agonists to increase both phosphatidylinositol hydrolysis and secretion of the soluble extracellular fragment of amyloid precursor protein (apps) from cortical astrocyte cultures. |
1997-05-15 |
2023-08-12 |
Not clear |
| D B Stanimirovic, R Ball, J P Durki. Stimulation of glutamate uptake and Na,K-ATPase activity in rat astrocytes exposed to ischemia-like insults. Glia. vol 19. issue 2. 1997-04-28. PMID:9034829. |
in this study we demonstrate the stimulation of both glutamate uptake and na,k-atpase activity in rat astrocyte cultures in response to sublethal ischemia-like insults. |
1997-04-28 |
2023-08-12 |
rat |
| R A Swanson, J Liu, J W Miller, J D Rothstein, K Farrell, B A Stein, M C Longuemar. Neuronal regulation of glutamate transporter subtype expression in astrocytes. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 17. issue 3. 1997-03-17. PMID:8994048. |
these studies show that astrocyte expression of glutamate transporter subtypes is influenced by neurons, and that dbcamp can partially mimic this influence. |
1997-03-17 |
2023-08-12 |
rat |
| B Chisamore, M Solc, K Do. Excitatory amino acid regulation of astrocyte proteoglycans. Brain research. Developmental brain research. vol 97. issue 1. 1997-02-27. PMID:8946051. |
glutamate exposure did not regulate the release of a specific family of pg, but glutamate inhibited the synthesis of heparan sulfate (hs) pgs that appeared within the extracellular environment of the astrocyte. |
1997-02-27 |
2023-08-12 |
Not clear |
| G Chen, P Q Trombley, A N van den Po. GABA receptors precede glutamate receptors in hypothalamic development; differential regulation by astrocytes. Journal of neurophysiology. vol 74. issue 4. 1997-02-04. PMID:8989386. |
both the amplitude of the responses to glutamate and the percentage of cells responding to glutamate were increased by growing neurons either on an astrocyte substrate or in high-density cultures. |
1997-02-04 |
2023-08-12 |
rat |
| G Chen, P Q Trombley, A N van den Po. GABA receptors precede glutamate receptors in hypothalamic development; differential regulation by astrocytes. Journal of neurophysiology. vol 74. issue 4. 1997-02-04. PMID:8989386. |
after 3 days in vitro, gaba (30 microm) elicited a mean current of 1,648 pa, whereas glutamate (500 microm) only elicited a 266-pa current, and glycine (500 microm) elicited a 278-pa current from neurons growing on an astrocyte layer. |
1997-02-04 |
2023-08-12 |
rat |
| G Chen, P Q Trombley, A N van den Po. GABA receptors precede glutamate receptors in hypothalamic development; differential regulation by astrocytes. Journal of neurophysiology. vol 74. issue 4. 1997-02-04. PMID:8989386. |
however, glutamate and glycine receptors appear more sensitive to regulation by the local environment than gaba receptors because culture density and the astrocyte substrate have greater inductive effects on glutamate and glycine receptors than on gaba receptors. |
1997-02-04 |
2023-08-12 |
rat |
| J J Jensen, U H Winzer-Serhan, F M Lesli. Glial regulation of alpha 7-type nicotinic acetylcholine receptor expression in cultured rat cortical neurons. Journal of neurochemistry. vol 68. issue 1. 1997-01-27. PMID:8978716. |
an additional mechanism of glial regulation may involve removal of glutamate from the surrounding medium, as added glutamate (200 microm) increased 125i-alpha-bungarotoxin binding in astrocyte-poor cultures but not in those that were astrocyte enriched. |
1997-01-27 |
2023-08-12 |
rat |
| H Akaoka, H Hardin-Pouzet, A Bernard, B Verrier, M F Belin, P Giraudo. Imbalanced expression of glutamate-glutamine cycle enzymes induced by human T-cell lymphotropic virus type 1 Tax protein in cultivated astrocytes. Journal of virology. vol 70. issue 12. 1997-01-23. PMID:8971000. |
in both human astrocyte precursors and rat glial cells, the levels of expression of glutamine synthetase (gs) and glutamate dehydrogenase (gdh) were increased and decreased, respectively, after coculture with htlv-1 t cells. |
1997-01-23 |
2023-08-12 |
human |