GABA

Psicobiologia dello stress

Psicobiologia dello stress

Nel nostro laboratorio siamo interessanti a comprendere come i microRNA regolano la neurotrasmissione in specifici circuiti cerebrali nella regolazione di comportamenti difensivi innati. Per i nostri studi utilizziamo approcci in-vivo (fiber photometry, in-vivo microdialysis, optogenetics) e ex-vivo su modelli murini geneticamente modificati.

The glutaminase-dependent acid resistance system. Qualitative and quantitative assays and analysis of its distribution in enteric bacteria

Neutralophilic bacteria have developed several strategies to overcome the deleterious effects of acid stress. In particular, the amino acid-dependent systems are widespread, with their activities overlapping, covering a rather large pH range, from 6 to

Short-latency afferent inhibition and somato-sensory evoked potentials during the migraine cycle: Surrogate markers of a cycling cholinergic thalamo-cortical drive?

Background: Short-latency afferent inhibition (SAI) consists of motor cortex inhibition induced by sensory afferents and depends on the excitatory effect of cholinergic thalamocortical projections on inhibitory GABAergic cortical networks. Given the electrophysiological evidence for thalamo-cortical dysrhythmia in migraine, we studied SAI in migraineurs during and between attacks and searched for correlations with somatosensory habituation, thalamocortical activation, and clinical features.

Editorial: epilepsy and neurodevelopmental diseases

The association between epilepsy and neurodevelopmental diseases is well-recognized and has gained significant attention in the field of neuroscience in recent years. One of the main reasons for this interest is the need for a better understanding of the events that lead to the development and maturation of the CNS. This is a fundamental and necessary basis for potential breakthrough strategies that could guide novel and more effective disease-modifying therapeutic approaches to neurodevelopmental syndromes that are frequently characterized by severe and

Microglial expression of GAT-1 in the cerebral cortex

Microglial cells are the immune cells of the brain that, by sensing the microenvironment, permit a correct brain development and function. They communicate with other glial cells and with neurons, releasing and responding to a number of molecules that exert effects on surrounding cells. Among these, neurotransmitters and, in particular, gamma-aminobutyric acid (GABA) has recently gained interest in this context. We demonstrated the expression of GABA transporter 1 (GAT-1) in microglial cells both in soma and cell processes.

Old neurochemical markers, new functional directions?: an editorial for ‘Distinct gradients of various neurotransmitter markers in caudate nucleus and putamen of the human brain’ on page 650

The dorsal striatum coordinates input-output processing of numerous functions including those related to motor activity, motivation, and learning. Considerable anatomical and biochemical heterogeneity across striatal subregions has long been known to result in distinct functional outcomes, and for imbalances in these pathways to contribute to many complex disorders.

Dystroglycan mediates clustering of essential GABAergic components in cerebellar Purkinje cells

Muscle dystrophin–glycoprotein complex (DGC) links the intracellular cytoskeleton to the extracellular matrix. In neurons, dystroglycan and dystrophin, two major components of the DGC, localize in a subset of GABAergic synapses, where their function is unclear. Here we used mouse models to analyze the specific role of the DGC in the organization and function of inhibitory synapses. Loss of full-length dystrophin in mdx mice resulted in a selective depletion of the transmembrane β-dystroglycan isoform from inhibitory post-synaptic sites in cerebellar Purkinje cells.

Dystrophin is required for the proper timing in retinal histogenesis: a thorough investigation on the mdx mouse model of Duchenne muscular dystrophy

Duchenne muscular dystrophy (DMD) is a lethal X-linked muscular disease caused by
defective expression of the cytoskeletal protein dystrophin (Dp427). Selected autonomic
and central neurons, including retinal neurons, express Dp427 and/or dystrophin shorter
isoforms. Because of this, DMD patients may also experience different forms of cognitive
impairment, neurological and autonomic disorders, and specific visual defects. DMDrelated
damages to the nervous system are established during development, suggesting

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