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| Content Provider | PubMed Central |
|---|---|
| Author | Wang, Kang Mateos Aparicio, Pedro Christoph, Hönigsperger Raghuram, Vijeta Wu, Wendy W. Ridder, Margreet C. Sah, Pankaj Jim, Maylie Storm, Johan F. Adelman, John P. |
| Editor | Nelson, Sacha B. |
| Abstract | In pyramidal neurons such as hippocampal area CA1 and basolateral amygdala, a slow afterhyperpolarization (sAHP) follows a burst of action potentials, which is a powerful regulator of neuronal excitability. The sAHP amplitude increases with aging and may underlie age related memory decline. The sAHP is due to a Ca2+-dependent, voltage-independent K+ conductance, the molecular identity of which has remained elusive until a recent report suggested the Ca2+-activated K+ channel, IK1 (KCNN4) as the sAHP channel in CA1 pyramidal neurons. The signature pharmacology of IK1, blockade by TRAM-34, was reported for the sAHP and underlying current. We have examined the sAHP and find no evidence that TRAM-34 affects either the current underling the sAHP or excitability of CA1 or basolateral amygdala pyramidal neurons. In addition, CA1 pyramidal neurons from IK1 null mice exhibit a characteristic sAHP current. Our results indicate that IK1 channels do not mediate the sAHP in pyramidal neurons. |
| Related Links | http://dx.doi.org/10.7554/elife.11206 |
| Starting Page | 11206 |
| File Format | |
| ISSN | 2050084X |
| e-ISSN | 2050084X |
| Journal | eLife |
| Volume Number | 5 |
| Language | English |
| Publisher | eLife Sciences Publications, Ltd |
| Publisher Date | 2016-01-01 |
| Access Restriction | Open |
| Rights Holder | eLife Sciences Publications, Ltd |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Neuroscience Immunology and Microbiology Medicine Biochemistry, Genetics and Molecular Biology |
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