Pathophysiology ePosters

Burst-suppression (BS) is a highly structured electroencephalogram (EEG) pattern characterized by alternating periods of high-voltage activity (bursts) and low or flatline activity (suppression). In non-anesthetized adults, BS indicates severe brain pathology, e.g. due to oxygen and glucose deprivation [1]. There are…

Modeling brain dynamics requires addressing processes that span different temporal and spatial scales [1]. This is crucial, when studying phenomena at the circuit level that are consequences of pharmacological or pathological alterations occurring at the single-cell level, such as changes in ionic or synaptic…

Familial hemiplegic migraine type 3 (FHM-3) is a type of migraine with aura, caused by gain-of-function mutations of NaV1.1 [1,2]. This voltage-gated channel is mainly expressed in fast-spiking inhibitory neurons as their dominant Na+ channel. Cortical spreading depolarization, a wave of hyperexcitability followed by…

Among the brain structures affected in Schizophrenia is the hippocampus. In addition to structural changes [1], dysfunctions of the synaptic plasticity have also been observed supporting cognitive impairment [2]. To study these phenomena in depth, we aim to develop and match two models of the pathology, computational…

White matter (WM) tracts shape the brain’s dynamical activity, and their damage (e.g., disconnections) results in functional alterations and cognitive symptoms [1]. Here, we use neural mass modeling to test the in-vivo effects of WM disconnections [2]. We create models of local versus global, and edge versus nodal…

The hippocampus (HC) plays a pivotal role in spatial navigation and memory in the human brain. Place cells, specialised neurons residing within the hippocampus, exhibit selective firing patterns corresponding to specific spatial locations, collectively contributing to the cognitive mapping of the environment. In…

Parkinson's disease (PD), characterized by the absence of dopamine in the striatum[1], is caused by the death of the substantia nigra pars compacta dopamine (SNcDA) neurons in the midbrain. The loss of these autonomously pacemaking[2] neurons is attributed to irreparable damage due to a dysregulation cascade starting…

Excessive capillary flow heterogeneity results in a microcirculatory dysfunction and hinders optimal oxygen delivery into central nervous system (CNS). Irregularities in cellular flow, like dynamic stalls in capillaries is a potential origin of this heterogeneity. Because under systemic inflammatory conditions…

Migraine is a recurrent headache disorder characterized by episodes of acute pain. The overall objective of this work, was to test the hypothesis that the NLRP3 inflammasome is involved in the pathophysiology of migraine and that NLRP3 blockade may represent a novel strategy for migraine management through the design…

Metabolic Syndrome (MetS) and obesity correlate with cognitive impairment, heightening the susceptibility to cognitive decline and dementia. Noteworthy, cognitive impairment exacerbates weight management challenges in MetS, giving rise to a "cognitive decline-MetS" loop. Indeed, various cognitive and affective…

The proportion of aged individuals in the general population is increasing, and non-communicable diseases like obesity are major contributors to mortality in older individuals. The WNIN/Ob obese rat exhibits a significantly reduced average lifespan of 15 months. Exploring molecular and biochemical characteristics of…

Acute Ischemic Stroke (AIS) is a major cause of death and disability worldwide. Mechanical thrombectomy to remove clots from cerebral vasculature represents a unique opportunity to study characteristics and biological patterns of stroke pathophysiology. There is marked heterogeneity in clots and great interest in…

The striatum is densely innervated by midbrain dopamine (DA) neurons but also receives a further sparse monoaminergic innervation by raphe serotonin (5-HT) neurons. Striatal 5-HT has been suggested to have some opposing functions to DA but also to regulate DA release which might support (or counteract) this functional…

Dementia, a complex, incurable clinical syndrome marked by progressive cognitive decline, encompasses various types, with Alzheimer's disease (AD) being the most prevalent. The annual increase in AD cases underscores the urgency for innovative antidementia treatments. Mansorin A (MA) and mansonone G (MG) exhibit…

The role of dysregulated gut microbiota (GM) is widely recognized as relevant to the pathogenesis of Parkinson's disease (PD), particularly in case of non-motor symptoms such as depression and anhedonia. Most transgenic mouse models of PD, however, don’t exhibit clinically relevant dysbiosis. Here, for the first time,…

Objectives: We aim to investigate the impact of acute stroke on delta oscillation in STN and to explore the correlation between motor disability and the altered delta oscillation in STN following stroke. Methods: 10 Sprague-Dawley rat were included in this study. They were trained in single pellet reaching task before…

Oxidative stress and neuroinflammation are crucial phenomena in the pathogenesis of Alzheimer disease (AD). Oxotremorine-M (Oxo), a non-selective muscarinic acetylcholine receptors agonist, exerts neurotrophic functions in primary neurons and modulates oxidative stress and neuroinflammation phenomena in rat brain.…

OBJECTIVE: Alzheimer's disease (AD) stands as the prevalent neurodegenerative condition globally, characterized by symptoms such as memory loss, language difficulties, disorientation, diminished motivation, self-neglect, mood fluctuations, and behavioral challenges. Despite its widespread impact, the precise cellular…

Arginase 2 (Arg2), an arginine-metabolizing, mitochondrial enzyme, has been recently found to be enriched in the striatum, and progressive loss of Arg2 has been proposed as a potential factor contributing to the pathogenesis of Huntington’s disease (HD), a disorder primarily involving this region of the brain.…

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease, defined by motor neuron loss, muscle paralysis, and death. ALS individuals often present alterations in cardiovascular function that may evolve into heart failure and death. Mitochondrial dysfunction and oxidative stress are key players in ALS…

Sepsis is a life-threatening organ dysfunction caused by an exacerbated inflammatory response to an infection. This multifactorial syndrome includes loss of hemodynamic coherence, increasing permeability and blood-brain-barrier breakdown, neuronal death, etc. The presence of cognitive deficits increases mortality. It…

Primary mitochondrial diseases (PMDs) associate with pediatric neurological disorders and are traditionally related to oxidative phosphorylation system (OXPHOS) defects in neurons. Interestingly, both PMD mouse models and patients also show gliosis, and pharmacologic depletion of microglia, the brain resident innate…

Multiple Sclerosis (MS) is a chronic inflammatory disorder of the central nervous system. Despite advancements in diagnostic methods, early detection remains challenging. Metabolomic analysis offers a promising, non-invasive approach to identify potential biomarkers for improved diagnostic precision.Cerebrospinal…

A link between type 2 diabetes mellitus and neurodegeneration has been suggested for decades. Diabetes-associated cognitive dysfunction has been linked to chronic hyperglycemia, oxidative stress, neuroinflammation, cholinergic dysfunction, and neuronal degeneration. We investigated the neuroprotective activity of a…