kn-62 and 3-4-dihydroxyphenylglycol

kn-62 has been researched along with 3-4-dihydroxyphenylglycol* in 2 studies

Other Studies

2 other study(ies) available for kn-62 and 3-4-dihydroxyphenylglycol

Article	Year
Effects of 17beta-estradiol on chemically induced long-term depression. Neuropharmacology, 2005, Volume: 49, Issue:1 In this study, we have investigated the effects of 17beta-estradiol (E2) on chemically induced long-term depression (LTD). LTD was induced by a brief application of N-methyl-D-aspartate (NMDA) or (R,S)-3,5-dihydroxyphenylglycine (DHPG), a group I metabotropic glutamate receptor agonist. Bath application of E2 alone potentiated population excitatory postsynaptic potentials. This potentiation was readily reversed by washing with control saline. The effect of E2 on NMDA-induced LTD was a conversion of LTD to long-term potentiation (LTP). An application of NMDA in the presence of E2 induced LTP. The induction of LTP was inhibited by an inhibitor of calcium/calmodulin dependent protein kinase (CaMKII). The results suggest that E2 potentiates NMDA receptor function and induces an increase in postsynaptic Ca2+ concentration. An increase in postsynaptic Ca2+ concentration activates CaMKII, leading to LTP. In contrast to NMDA-induced LTD, an application of DHPG in the presence of E2 induced significantly larger LTD. The results suggest that E2 potentiates an as yet unidentified process(es) in inducing LTD by an application of DHPG. The effects of E2 both on NMDA-induced and DHPG-induced LTD were suppressed by an estrogen receptor antagonist. Topics: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; Animals; Drug Interactions; Electrophysiology; Enzyme Inhibitors; Estradiol; Estrogen Antagonists; Excitatory Amino Acid Agonists; Excitatory Postsynaptic Potentials; Fulvestrant; Hippocampus; In Vitro Techniques; Long-Term Synaptic Depression; Male; Methoxyhydroxyphenylglycol; N-Methylaspartate; Rats; Rats, Sprague-Dawley	2005
A CaMKII inhibitor, KN-62, facilitates DHPG-induced LTD in the CA1 region of the hippocampus. Neuropharmacology, 1999, Volume: 38, Issue:4 We have shown previously that activation of mGlu receptors using a group I specific mGlu receptor agonist, (R,S)-3,5-dihydroxyphenylglycine (DHPG), can induce long-term depression (LTD) in the CA1 region of the hippocampus (Palmer et al., 1997). We now report that DHPG-induced LTD is facilitated by treatment with KN-62, an inhibitor of certain Ca2+/calmodulin-dependent protein kinases (CaMKs), including CaMKII. Topics: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; Animals; Benzoates; Calcium-Calmodulin-Dependent Protein Kinase Type 2; Calcium-Calmodulin-Dependent Protein Kinases; Depression, Chemical; Enzyme Inhibitors; Excitatory Amino Acid Antagonists; Female; Glycine; Hippocampus; In Vitro Techniques; Methoxyhydroxyphenylglycol; Neuronal Plasticity; Rats; Rats, Wistar; Signal Transduction; Synaptic Transmission	1999

Article

Year

Effects of 17beta-estradiol on chemically induced long-term depression.

Neuropharmacology, 2005, Volume: 49, Issue:1

In this study, we have investigated the effects of 17beta-estradiol (E2) on chemically induced long-term depression (LTD). LTD was induced by a brief application of N-methyl-D-aspartate (NMDA) or (R,S)-3,5-dihydroxyphenylglycine (DHPG), a group I metabotropic glutamate receptor agonist. Bath application of E2 alone potentiated population excitatory postsynaptic potentials. This potentiation was readily reversed by washing with control saline. The effect of E2 on NMDA-induced LTD was a conversion of LTD to long-term potentiation (LTP). An application of NMDA in the presence of E2 induced LTP. The induction of LTP was inhibited by an inhibitor of calcium/calmodulin dependent protein kinase (CaMKII). The results suggest that E2 potentiates NMDA receptor function and induces an increase in postsynaptic Ca2+ concentration. An increase in postsynaptic Ca2+ concentration activates CaMKII, leading to LTP. In contrast to NMDA-induced LTD, an application of DHPG in the presence of E2 induced significantly larger LTD. The results suggest that E2 potentiates an as yet unidentified process(es) in inducing LTD by an application of DHPG. The effects of E2 both on NMDA-induced and DHPG-induced LTD were suppressed by an estrogen receptor antagonist.

Topics: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; Animals; Drug Interactions; Electrophysiology; Enzyme Inhibitors; Estradiol; Estrogen Antagonists; Excitatory Amino Acid Agonists; Excitatory Postsynaptic Potentials; Fulvestrant; Hippocampus; In Vitro Techniques; Long-Term Synaptic Depression; Male; Methoxyhydroxyphenylglycol; N-Methylaspartate; Rats; Rats, Sprague-Dawley

2005

A CaMKII inhibitor, KN-62, facilitates DHPG-induced LTD in the CA1 region of the hippocampus.

Neuropharmacology, 1999, Volume: 38, Issue:4

We have shown previously that activation of mGlu receptors using a group I specific mGlu receptor agonist, (R,S)-3,5-dihydroxyphenylglycine (DHPG), can induce long-term depression (LTD) in the CA1 region of the hippocampus (Palmer et al., 1997). We now report that DHPG-induced LTD is facilitated by treatment with KN-62, an inhibitor of certain Ca2+/calmodulin-dependent protein kinases (CaMKs), including CaMKII.

Topics: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; Animals; Benzoates; Calcium-Calmodulin-Dependent Protein Kinase Type 2; Calcium-Calmodulin-Dependent Protein Kinases; Depression, Chemical; Enzyme Inhibitors; Excitatory Amino Acid Antagonists; Female; Glycine; Hippocampus; In Vitro Techniques; Methoxyhydroxyphenylglycol; Neuronal Plasticity; Rats; Rats, Wistar; Signal Transduction; Synaptic Transmission

1999