PERFORM Publications

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Title		Authors	PubMed ID
1	Dopamine inhibits excitatory synaptic responses in layer I of the rat parasubiculum	Carter F; Hobishi H; Chapman CA;	40818632 PSYCHOLOGY
2	Progesterone and allopregnanolone facilitate excitatory synaptic transmission in the infralimbic cortex via activation of membrane progesterone receptors	Rahaei N; Buynack LM; Kires L; Movasseghi Y; Chapman CA;	39722289 PSYCHOLOGY
3	Reduced 17β-estradiol following ovariectomy induces mitochondrial dysfunction and degradation of synaptic proteins in the entorhinal cortex	Olajide OJ; Batallán Burrowes AA; da Silva IF; Bergdahl A; Chapman CA;	39617168 HKAP
4	17β-Estradiol reduces inhibitory synaptic currents in entorhinal cortex neurons through G protein-coupled estrogen receptor-1 activation of extracellular signal-regulated kinase	Batallán Burrowes AA; Moisan É; Garrone A; Buynack LM; Chapman CA;	39150316 PSYCHOLOGY
5	Inhibiting amyloid beta (1-42) peptide-induced mitochondrial dysfunction prevents the degradation of synaptic proteins in the entorhinal cortex	Olajide OJ; La Rue C; Bergdahl A; Chapman CA;	36275011 HKAP
6	Ovariectomy reduces cholinergic modulation of excitatory synaptic transmission in the rat entorhinal cortex	Batallán Burrowes AA; Olajide OJ; Iasenza IA; Shams WM; Carter F; Chapman CA;	35939438 CSBN
7	G protein-coupled estrogen receptor-1 enhances excitatory synaptic responses in the entorhinal cortex	Batallán Burrowes AA; Sundarakrishnan A; Bouhour C; Chapman CA;	34399010 PSYCHOLOGY
8	Amyloid-β (1-42) peptide induces rapid NMDA receptor-dependent alterations at glutamatergic synapses in the entorhinal cortex	Olajide OJ; Chapman CA;	34144329 PSYCHOLOGY
9	Molecular mechanisms of neurodegeneration in the entorhinal cortex that underlie its selective vulnerability during the pathogenesis of Alzheimer's disease.	Olajide OJ, Suvanto ME, Chapman CA	33495355 PSYCHOLOGY
10	State-Dependent Entrainment of Prefrontal Cortex Local Field Potential Activity Following Patterned Stimulation of the Cerebellar Vermis.	Tremblay SA, Chapman CA, Courtemanche R	31736718 HKAP
11	Heterosynaptic modulation of evoked synaptic potentials in layer II of the entorhinal cortex by activation of the parasubiculum.	Sparks DW, Chapman CA	27146979 PSYCHOLOGY
12	Gap Junction Modulation of Low-Frequency Oscillations in the Cerebellar Granule Cell Layer.	Robinson JC, Chapman CA, Courtemanche R	28421552 HKAP
13	Exposure to cues associated with palatable food reward results in a dopamine D₂ receptor-dependent suppression of evoked synaptic responses in the entorhinal cortex.	Hutter JA, Chapman CA	24093833 CSBN
14	Dopaminergic enhancement of excitatory synaptic transmission in layer II entorhinal neurons is dependent on D₁-like receptor-mediated signaling.	Glovaci I, Caruana DA, Chapman CA	24220689 PSYCHOLOGY
15	Diurnal influences on electrophysiological oscillations and coupling in the dorsal striatum and cerebellar cortex of the anesthetized rat.	Frederick A, Bourget-Murray J, Chapman CA, Amir S, Courtemanche R	25309348 BIOLOGY
16	Activation of Phosphatidylinositol-Linked Dopamine Receptors Induces a Facilitation of Glutamate-Mediated Synaptic Transmission in the Lateral Entorhinal Cortex.	Glovaci I, Chapman CA	26133167 PSYCHOLOGY
17	Optogenetic Activation of the Infralimbic Cortex Suppresses the Return of Appetitive Pavlovian-Conditioned Responding Following Extinction.	Villaruel FR, Lacroix F, Sanio C, Sparks DW, Chapman CA, Chaudhri N	29045570 PSYCHOLOGY
18	Dopamine suppresses persistent firing in layer III lateral entorhinal cortex neurons.	Batallán-Burrowes AA, Chapman CA	29524644 PSYCHOLOGY
19	The role of the paraventricular nucleus of the thalamus in the augmentation of heroin seeking induced by chronic food restriction.	Chisholm A, Iannuzzi J, Rizzo D, Gonzalez N, Fortin É, Bumbu A, Batallán Burrowes AA, Chapman CA, Shalev U	30623532 CSBN
20	Serotonin 5-HT1A Receptor-Mediated Reduction of Excitatory Synaptic Transmission in Layers II/III of the Parasubiculum.	Carter F, Chapman CA	30902681 PSYCHOLOGY
21	Dopamine induces release of calcium from internal stores in layer II lateral entorhinal cortex fan cells.	Glovaci I, Chapman CA	30999216 PSYCHOLOGY

Title:	Heterosynaptic modulation of evoked synaptic potentials in layer II of the entorhinal cortex by activation of the parasubiculum.
Authors:	Sparks DW, Chapman CA
Link:	https://www.ncbi.nlm.nih.gov/pubmed/27146979?dopt=Abstract
DOI:	10.1152/jn.00095.2016
Publication:	Journal of neurophysiology
Keywords:	Ih; entorhinal cortex; heterosynaptic; parasubiculum; plasticity;
PMID:	27146979	Category:	J Neurophysiol	Date Added:	2019-06-20
Dept Affiliation:	PSYCHOLOGY 1 Centre for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montréal, Québec, Canada. 2 Centre for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montréal, Québec, Canada andrew.chapman@concordia.ca.

Description:

Heterosynaptic modulation of evoked synaptic potentials in layer II of the entorhinal cortex by activation of the parasubiculum.

J Neurophysiol. 2016 08 01;116(2):658-70

Authors: Sparks DW, Chapman CA

Abstract

The superficial layers of the entorhinal cortex receive sensory and associational cortical inputs and provide the hippocampus with the majority of its cortical sensory input. The parasubiculum, which receives input from multiple hippocampal subfields, sends its single major output projection to layer II of the entorhinal cortex, suggesting that it may modulate processing of synaptic inputs to the entorhinal cortex. Indeed, stimulation of the parasubiculum can enhance entorhinal responses to synaptic input from the piriform cortex in vivo. Theta EEG activity contributes to spatial and mnemonic processes in this region, and the current study assessed how stimulation of the parasubiculum with either single pulses or short, five-pulse, theta-frequency trains may modulate synaptic responses in layer II entorhinal stellate neurons evoked by stimulation of layer I afferents in vitro. Parasubicular stimulation pulses or trains suppressed responses to layer I stimulation at intervals of 5 ms, and parasubicular stimulation trains facilitated layer I responses at a train-pulse interval of 25 ms. This suggests that firing of parasubicular neurons during theta activity may heterosynaptically enhance incoming sensory inputs to the entorhinal cortex. Bath application of the hyperpolarization-activated cation current (Ih) blocker ZD7288 enhanced the facilitation effect, suggesting that cholinergic inhibition of Ih may contribute. In addition, repetitive pairing of parasubicular trains and layer I stimulation induced a lasting depression of entorhinal responses to layer I stimulation. These findings provide evidence that theta activity in the parasubiculum may promote heterosynaptic modulation effects that may alter sensory processing in the entorhinal cortex.

PMID: 27146979 [PubMed - indexed for MEDLINE]

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