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Maria del Carmen Sandi Perez

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Related publications (188)

Page 3 of 10

Chronic stress-induced alterations in amygdala responsiveness and behavior - modulation by trait anxiety and corticotropin-releasing factor systems

Maria del Carmen Sandi Perez, Maria Isabel Cordero Campana

The basolateral nucleus of the amygdala (BLA) plays a key role in emotional arousal and anxiety, and expresses high levels of corticotropin-releasing factor receptor (CRFR)1. In rat brain slices, we have recently shown that afferent activation of the BLA i ...

Wiley-Blackwell2008

Stress-induced cognitive and psychopathological alterations : functional involvement of the neural cell adhesion molecule (NCAM)

Maria del Carmen Sandi Perez

Intensive research over the past few years has provided evidence, that stress is a potent modulator of brain function and cognition. In particular cognitive and emotional processes have been shown to be susceptible to modulation by stress. Whereas acute st ...

EPFL2009

Stress and memory: behavioral effects and neurobiological mechanisms

Maria del Carmen Sandi Perez

Stress is a potent modulator of learning and memory processes. Although there have been a few attempts in the literature to explain the diversity of effects (including facilitating, impairing, and lack of effects) described for the impact of stress on memo ...

2007

The antidepressant agomelatine blocks the adverse effects of stress on memory and enables spatial learning to rapidly increase neural cell adhesion molecule (NCAM) expression in the hippocampus of rats

Maria del Carmen Sandi Perez

Agomelatine, a novel antidepressant with established clinical efficacy, acts as a melatonin receptor agonist and 5-HT(2C) receptor antagonist. As stress is a significant risk factor in the development of depression, we sought to determine if chronic agomel ...

Cambridge University Press2009

Pathogen-free husbandry conditions alleviate behavioral deficits and neurodegeneration in AD10 anti-NGF mice

Maria del Carmen Sandi Perez, Daniel Constam, Stamatina Tzanoulinou

It has been suggested that systemic infection, occurring during aging and chronic neurodegenerative diseases, can evoke an immune response that aggravates the progression of neurodegeneration and cognitive decline. It has been shown that the AD11 neurodege ...

2014

Stress, noradrenaline, and realistic prediction of mouse behaviour using reinforcement learning

Wulfram Gerstner, Maria del Carmen Sandi Perez, Gediminas Luksys

Suppose we train an animal in a conditioning experiment. Can one predict how a given animal, under given experimental conditions, would perform the task? Since various factors such as stress, motivation, genetic background, and previous errors in task perf ...

Curran Associates, Inc.2009

The role of the amygdala in emotional memories : a multidisciplinary approach

Maria del Carmen Sandi Perez, Kamila Markram

This thesis investigates the role of the amygdala for the establishment of fear memories with a multidisciplinary approach, including behavioural, psychopharmacological, genetic, molecular, and electrophysiological techniques in rats or mice, under healthy ...

EPFL2007

Long term programming of psychopathology-like behaviors in male rats by peripubertal stress depends on individual’s glucocorticoid responsiveness to stress

Maria del Carmen Sandi Perez, Sophie Elizabeth Walker

Experience of adversity early in life and dysregulation of hypothalamus–pituitary–adrenocortical (HPA) axis activity are risk factors often independently associated with the development of psychopathological disorders, including depression, PTSD and pathol ...

2018

Urolithin A induces mitophagy and prolongs lifespan in C. elegans and increases muscle function in rodents

Johan Auwerx, Maria del Carmen Sandi Perez, Patrick Aebischer, Laurent Mouchiroud, Evan Graehl Williams, Dongryeol Ryu, Pénélope Andreux, Elena Katsyuba, Pooja Jha, Damien Sébastien Huzard, Giuseppe Lo Sasso, Norman Lionel Moullan

The biological effects of urolithins remain poorly characterized, despite wide-spread human exposure via the dietary consumption of their metabolic precursors, the ellagitannins, which are found in the pomegranate fruit, as well as in nuts and berries. We ...

2016

Exploring associations between diurnal cortisol, stress, coping and psychopathology in adolescents and young adults with 22q11.2 deletion syndrome

Maria del Carmen Sandi Perez, Olivia Zanoletti, Farnaz Delavari, Maude Schneider

Background: 22q11.2 deletion syndrome (22q11DS) is a neurogenetic condition associated to a high risk for psychiatric disorders, including psychosis. Individuals with 22q11DS are thought to experience increased levels of chronic stress, which could lead to ...

2022

Stress at learning facilitates memory formation by regulating AMPA receptor trafficking through a glucocorticoid action

Maria del Carmen Sandi Perez

Stress and glucocorticoids (GCs) can facilitate memory formation. However, the molecular mechanisms mediating their effects are largely unknown. alpha-Amino-3-hydroxy-5- methyl-4-isoxazolepropionic acid (AMPA) receptor (AMPAR) trafficking has been implicat ...

Nature Publishing Group2010

Emergence in extinction of enhanced and persistent responding to ambiguous aversive cues is associated with high MAOA activity in the prelimbic cortex

Maria del Carmen Sandi Perez, Guillaume Poirier

There is a great deal of individual variability in the emotional outcomes of potentially traumatic events, and the underlying mechanisms are only beginning to be understood. In order to further our understanding of individual trajectories to trauma, its vu ...

2016

An energetic view of stress: Focus on mitochondria

Maria del Carmen Sandi Perez

Energy is required to sustain life and enable stress adaptation. At the cellular level, energy is largely derived from mitochondria – unique multifunctional organelles with their own genome. Four main elements connect mitochondria to stress: 1) Energy is r ...

2018

Cellular mechanisms regulating adult neurogenesis and olfactory perception in mice

Thomas Brionne, Maria del Carmen Sandi Perez

In the adult mammalian brain, neural stem cells persist in the subventricular zone and the hippocampus, producing new functional neurons throughout life. Whether and how adult neurogenesis maintains brain function remains highly debated. This question is o ...

EPFL2007

Psychobiological Vulnerability to Stress : Behavioral Traits and Neurobiological Mechanisms

Maria del Carmen Sandi Perez, Jorge Eduardo Castro Cifuentes

Several psychobiological factors are associated with vulnerability/resilience to stress-induced depression. Emerging evidence indicates behavioral traits, such as anxiety, can be related to depression-like symptoms after exposure to chronic stress. However ...

EPFL2012

The Emerging Role of Brain Mitochondria in Fear and Anxiety

Maria del Carmen Sandi Perez, Alessandro Chioino

The functional complexity of brain circuits underlies the broad spectrum of behaviors, cognitive functions, and their associated disorders. Mitochondria, traditionally known for their role in cellular energy metabolism, are increasingly recognized as centr ...

Springer Nature2024

Age-related cognitive impairments in mice with a conditional ablation of the neural cell adhesion molecule

Maria del Carmen Sandi Perez, David Genoux

Most of the mechanisms involved in neural plasticity support cognition, and aging has a considerable effect on some of these processes. The neural cell adhesion molecule (NCAM) of the immunoglobulin superfamily plays a pivotal role in structural and functi ...

Cold Spring Harbor Lab Press, Publications Dept2013

Brain mitochondrial diversity and network organization predict anxiety-like behavior in male mice

Maria del Carmen Sandi Perez

The brain and behavior are under energetic constraints, limited by mitochondrial energy transformation capacity. However, the mitochondria-behavior relationship has not been systematically studied at a brain-wide scale. Here we examined the association bet ...

Nature Research2023

Stress, genotype and norepinephrine in the prediction of mouse behavior using reinforcement learning

Maria del Carmen Sandi Perez, Wulfram Gerstner, Gediminas Luksys

Individual behavioral performance during learning is known to be affected by modulatory factors, such as stress and motivation, and by genetic predispositions that influence sensitivity to these factors. Despite numerous studies, no integrative framework i ...

Nature Publishing Group2009

Neuroligin-2 expression in the prefrontal cortex is involved in attention deficits induced by peripubertal stress

Maria del Carmen Sandi Perez, Jocelin Grosse, Olivia Zanoletti, Stamatina Tzanoulinou, Orbicia Riccio Wicht

Emerging evidence indicates that attention deficits, which are frequently observed as core symptoms of neuropsychiatric disorders, may be elicited by early life stress. However, the mechanisms mediating these stress effects remain unknown. The prefrontal c ...

2016