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Topic: Prenatal alcohol exposure

ePoster
5 ePosters

In Neuroscience

Differential neuroinflammatory responses to immune challenges in male and female rats prenatally exposed to alcohol

Carolina Luft, Kingston Wong, Victoria Vella, Parker Holman, Tamara Bodnar, Charlis Raineki · FENS Forum 2024

Prenatal alcohol exposure (PAE) leads to immune system dysfunction and increased susceptibility to autoimmune diseases. To explore potential mechanisms by which PAE induces neuroimmune dysfunction, the current study examined the impact of PAE on toll-like receptor 4 (TLR4) and TLR7/8 activation. Pregnant rats were divided into two groups: PAE - liquid ethanol diet ad libitum, and CON - pelleted control diet ad libitum. Male and female offspring were challenged in adulthood with LPS (40 µg/kg; activates TLR4), R848 (1 mg/kg; activates TLR7/8), or DMSO (vehicle), followed by brain sample collect

ePoster · Neuroscience

Impaired expression of the placental angiogenic factor CD146 by prenatal alcohol exposure results in disorganized foetal brain vasculature and neurodevelopmental defects

Maryline Lecointre, Camille Sautreuil, Jessica Dalmasso, Alexis Lebon, Matthieu Leuillier, François Janin, Mathieu Lecuyer, Soumeya Bekri, Stéphane Marret, Annie Laquerrière, Carole Brasse-Lagnel, Sophie Gil, Bruno Gonzalez · FENS Forum 2024

Prenatal alcohol exposure (PAE) impairs the “placenta–brain” axis that controls foetal brain angiogenesis. Placental growth factor (PlGF) has been identified as a proangiogenic messenger between these two organs. CD146, a partner of the VEGFR-1/2 signalosome, is involved in placental angiogenesis and exists as a soluble circulating form. The aim of the study was to investigate whether placental CD146 may contribute to brain vascular defects described in foetal alcohol spectrum disorder. In human placenta, the CD146 is expressed in developing villi and membrane and soluble CD146 forms are diffe

ePoster · Neuroscience

Impairment of the placenta–cortex transcriptomic signature following prenatal alcohol exposure, leading to dysregulation of angiogenic pathways

Anthony Falluel-Morel, Camille Sautreuil, Maryline Lecointre, Céline Derambure, Carole Brasse-Lagnel, Philippe Leroux, Annie Laquerrière, Gaël Nicolas, Sophie Gil, Daniel D. Savage, Stéphane Marret, Florent Marguet, Bruno J. Gonzalez · FENS Forum 2024

Although alcohol consumption during pregnancy is a major cause of behavioral and learning disabilities, most FASD infants remain late- or even misdiagnosed. Neuroplacentology has emerged as a new field of research focusing on the role of the placenta in fetal brain development. Several studies focusing on the pro-angiogenic factor PlGF have reported that prenatal alcohol exposure (PAE) dysregulates a functional placenta–cortex axis, leading to neurovascular-related defects. Here, we provide the first transcriptomic “placenta–cortex” signature of the effects of PAE on fetal angiogenesis. Whole

ePoster · Neuroscience

Prenatal alcohol exposure (PAE) leads to dysfunctional formation of excitatory synapses and social impairments in adolescent mice

Elisabetta Gerace, Lucia Caffino, Francesco Resta, Francesca Mottarlini, Beatrice Rizzi, Lorenzo Curti, Alessia Costa, Virginia Sordi, Alessandro Scaglione, Fabio Fumagalli, Francesco S. Pavone*, Guido Mannaioni* · FENS Forum 2024

Background: Prenatal alcohol exposure (PAE) induces a wide range of neurodevelopmental disabilities grouped under the term fetal alcohol spectrum disorders (FASD). The effects of PAE on brain development are dependent on complex long-lasting neurochemical events, including modification of glutamate receptors. Here, we explored whether PAE may affect the functional connectivity and, further, the molecular composition of the glutamatergic synapses in the prefrontal cortex (PFC) of adolescent mice and its effect on social behaviors.Methods: We generated an in vivo model of PAE, by exposing C57Bl/

ePoster · Neuroscience

Prenatal ethanol exposure induces long-term hippocampal AMPAergic dysfunction

Lorenzo Curti, Lucia Caffino, Francesca Mottarlini, Beatrice Rizzi, Fernando Castillo Díaz, Alessia Costa, Virginia Sordi, Fabio Fumagalli, Alessio Masi, Guido Mannaioni, Elisabetta Gerace · FENS Forum 2024

Ethanol (EtOH) exposure during pregnancy can induce a range of physical, learning, and behavioral disorders in the newborn clinically referred as Fetal Alcohol Spectrum Disorder (FASD). Unfortunately, FASD is poorly understood, and the underlying mechanisms are not fully known. Here, we studied the role of AMPA receptors (AMPARs) in in vitro and in vivo models of prenatal alcohol exposure (PAE). For the in vitro study, immature rat organotypic hippocampal slices were exposed to EtOH (150 mM) for 7 days followed by 24 hours of withdrawal. For the in vivo study, female C57/Bl6 mice were exposed

ePoster · Neuroscience