REVERSAL OF PRIMED BURST-INDUCED POTENTIATION BY THETA PULSE STIMULATION IN THE CA1 REGION OF RAT HIPPOCAMPAL SLICES

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OMRANI A.; FATH ELAHI Y.; SEMNANIAN S.; ASGARI A.R.

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Journal: Physiology and Pharmacology Year:2003 | Volume:6 | Issue:2 Page(s): 163-172

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Title

REVERSAL OF PRIMED BURST-INDUCED POTENTIATION BY THETA PULSE STIMULATION IN THE CA1 REGION OF RAT HIPPOCAMPAL SLICES

Author(s)

OMRANI A. | FATH ELAHI Y. | SEMNANIAN S. | ASGARI A.R. | Issue Writer Certificate

Keywords

PRIMED BURST POTENTIATIONQ4

LTP REVERSALQ4

THETA PULSE STIMULATIONQ4

HIPPOCAMPAL SLICESQ4

FIELD POTENTIALSQ4

Abstract

Time-dependent reversal of primed burst-induced long-term potentiation (LTP) was investigated in the CA1 region of rat hippocampus following THETA PULSE STIMULATION (TPS) of Schaffer collaterals. The effect of TPS (5Hz, 900 pulses) on primed burst potentiatin was evaluated through the analysis of the slope of population excitatory post-synaptic potentials (pEPSPs) and amplitude of population spikes (PSs). TPS had no lasting effect on baseline synaptic responses, while produced a lasting depression of previously potentiated responses when delivered 3 mm after LTP induction. TPS produced progressively lower depotentiation at longer delays, until it had no effect 20 min after LTP induction. These results suggest that the hippocarnpal theta rhythm promotes the induction of LTP as well as its subsequent reversal. Reversal of LTP may function to refine memories and prevent saturation of the storage capacity of the neural network.

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APA: Copy

OMRANI, A., FATH ELAHI, Y., SEMNANIAN, S., & ASGARI, A.R.. (2003). REVERSAL OF PRIMED BURST-INDUCED POTENTIATION BY THETA PULSE STIMULATION IN THE CA1 REGION OF RAT HIPPOCAMPAL SLICES. PHYSIOLOGY AND PHARMACOLOGY, 6(2), 163-172. SID. https://sid.ir/paper/75099/en

Vancouver: Copy

OMRANI A., FATH ELAHI Y., SEMNANIAN S., ASGARI A.R.. REVERSAL OF PRIMED BURST-INDUCED POTENTIATION BY THETA PULSE STIMULATION IN THE CA1 REGION OF RAT HIPPOCAMPAL SLICES. PHYSIOLOGY AND PHARMACOLOGY[Internet]. 2003;6(2):163-172. Available from: https://sid.ir/paper/75099/en

IEEE: Copy

A. OMRANI, Y. FATH ELAHI, S. SEMNANIAN, and A.R. ASGARI, “REVERSAL OF PRIMED BURST-INDUCED POTENTIATION BY THETA PULSE STIMULATION IN THE CA1 REGION OF RAT HIPPOCAMPAL SLICES,” PHYSIOLOGY AND PHARMACOLOGY, vol. 6, no. 2, pp. 163–172, 2003, [Online]. Available: https://sid.ir/paper/75099/en

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