Topic: post-tetanic potentiation

Neuromorphic electronics, inspired by the functions of neurons, have the potential to enable biomimetic communication with cells. Such systems require operation in aqueous environments, generation of sufficient levels of ionic currents for neurostimulation, and plasticity. However, their implementation requires a combination of separate devices, such as sensors, organic synaptic transistors, and stimulation electrodes. Here, we present a compact neuromorphic synapse that combines photodetection, memory, and neurostimulation functionalities all-in-one. The artificial photoreception is facilitat

The full-length amyloid precursor protein (APP), a key player in Alzheimer’s disease (AD), is ubiquitously expressed throughout the brain. It is known to be abundantly expressed in presynaptic compartments where it interacts with proteins of the presynaptic release machinery. However, the physiological functions of APP in the CNS still remain to be investigated. Here we study the physiological role of APP in presynaptic plasticity and information transfer within the hippocampus. We deleted APP and the related protein APLP2 in dentate gyrus granular cells (GCs) using a viral gene transfer strat

Hippocampal mossy fiber boutons are giant, very plastic synapses that provide a strong and sparse input onto CA3 that is thought to be important for learning and memory. These synapses have a low basal release probability and display various forms of plasticity: frequency facilitation, post-tetanic potentiation (PTP), and a cAMP-dependent presynaptic form of long-term potentiation (LTP).Synapsins are the most abundant neuronal phosphoproteins. Due to their phosphorylation-dependent association with synaptic vesicles they play an important role in synaptic transmission and plasticity.Differentl