Helena Brentani helena.brentani@gmail · 22schools in Porto Alegre 35schools in São Paulo São...
Transcript of Helena Brentani helena.brentani@gmail · 22schools in Porto Alegre 35schools in São Paulo São...
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Helena [email protected]
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Fetal origins of mental health: Evidence and mechanisms
Wolff Schlotz a,*, David I.W. Phillips
Brain, Behavior, and Immunity 23 (2009) 905–916
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GestationBirth
ProdromicBeginningChronicityDeterioration
10 20 30 40 50Years
Puberty
Premorbid
Brain abnormal development Neurochemistryimba
lance
Irreversiblemodifications
Mediatorsofneurotoxicity:
•Neurotrophins
•Inflammation
•Oxidative stress
Liebermanet al., BiolPsychiatry2001
Developmental trajectories of mental disorders
1. Introdução
Intervention
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Learning, memory,
impulse
control
Enviroment
Perception, cognition
Genes, cells, imaging studies
Biological MarkersBiological Markers
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Searching for early diagnosisSearching for early diagnosis
① Is it possible to predict who will develop neurodevelopmentdisorders ?
① Is it possible to predict who will develop neurodevelopmentdisorders ?
② Is genomic instability different betweenneurodevelopment disorders cases vs controls?
② Is genomic instability different betweenneurodevelopment disorders cases vs controls?
③ Is the neuron diferentiation transcriptome fromcases different from controls?
③ Is the neuron diferentiation transcriptome fromcases different from controls?
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Schizophrenia is a neurodevelopment disorder
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Yamanaka, 2009.
The best way to study neurodevelopment disordersis with Induced Pluripotent Stem Cells ‐ iPS
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Using skin fibroblast from cases and controls we recapituledthe neuron diferentiation
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Neurons from schizophrenic presented more ROS and
extramitochondrial O2 consumption
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Using microarrays to compare NPCcontrol X ips control
and NPCschizo X ipsschizo
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Down-regulated genesVenn-diagram
Up-regulated genes
741957 77 6011057 151
228 genes differentially expressed
in schizophrenia during neuro diferentiation
Control Schizophrenic Control Schizophrenic
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Comparing one region of the frontal lobe from brain tissue from Stanley
Foundation (25 schizo X 25 controls) we found 637 genes differentially
expressed
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We searched the 228 differentially expressed genes in schizophrenia during
neuron diferentiation (ips-NPC) in the Stanley arrays. We could observe that the
coexpression of some gene pairs has changed from controls to cases
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Node Class Degree in_list
RB1 HubBroker 155Yes
JUN Hub 55 No
B2M HubBroker 58 Yes
FOS HubBroker 126Yes
CREBBP Hub 50 No
BRCA1 Hub 51 No
EP300 Hub 56 No
ESR1 HubBroker 79 No
TP53 HubBroker 65 No
RELA Hub 51 No
MYC Hub 60 No
SP1 Hub 50 No
Comparing 228 genes from ips/NPC with 637 genes differentially expressed
in stanley frontal lobe from casesxcontrols we found 33 comonly differentially
expressed= Using the human interactome we can found brokers and hubs in
the network: tumor supressors and oncogenes
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22schools in Porto Alegre
35schools in São Paulo
São Paulo andPorto Alegre
Screeningof9.937Childrenform6 to 12 yearsold
To detect predictors of normal and abnormal mental and behavior development in a scholar sample of 6 to 12 years old children.
To refine the concept of “at‐risk” for mental disorders from clinical, neuropsychological, genetic and neuroimaging perspectives.
Scholar High risk cohort study – PREVENTION Study fromNational Institute of Development Psychiatry (INPD)
Scholar High risk cohort study – PREVENTION Study fromNational Institute of Development Psychiatry (INPD)
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Parental interviews
Scholar evaluations
Samples colected
2 500
INPD
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USP: EuripedesConstantino Miguel, RoseliShavitt, SilvanaChiavegatto, BacyBylik
UFRGS: Luis Augusto Rohde, Gisele Manfro
UNIFESP: Marcos Mercadantes, Rodrigo Bressan, Maria Conceição do Rosário
UFPE: MagdalaNovaes
kkkk
UFBA: Irismar Oliveira, AlineSampaio
INPD Team
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Dr Stevens Reins CNPQ