UNDURRAGA FOURCADE, JUAN PABLO

Preferred name

Main Affiliation

Facultad de Medicina Clínica Alemana Universidad del Desarrollo

jundurraga@udd.cl

ORCID

0000-0001-6958-2369

Scopus Author ID

33568392600

Now showing 1 - 10 of 64

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Dataset - Country-level gender inequality is associated with structural differences in the brains of women and men
(OSF, 2023)
BILLEKE BOBADILLA, PABLO ERNESTO
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UNDURRAGA FOURCADE, JUAN PABLO
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Dataset - Intra and inter-individual variability in functional connectomes of patients with First Episode of Psychosis
(ZENODO, 2023)
UNDURRAGA FOURCADE, JUAN PABLO
1
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Correction: Obesity and brain structure in schizophrenia – ENIGMA study in 3021 individuals
(2023)
Sean R. McWhinney
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Katharina Brosch
;
Vince D. Calhoun
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Benedicto Crespo-Facorro
;
Nicolas A. Crossley
1Scopus© Citations 1
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The enduring gap in educational attainment in schizophrenia according to the past 50 years of published research: a systematic review and meta-analysis
(2022)
Barbara Iruretagoyena
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UNDURRAGA FOURCADE, JUAN PABLO
14
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The Implementation of Psychological Interventions in First Episode of Psychosis Services in Chile
(2018)
UNDURRAGA FOURCADE, JUAN PABLO
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Castaneda, CP
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Mena, C; Gonzalez
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A; Nachar
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R; Monje, M
4
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Psychoeducation in bipolar disorder with a SIMPLe smartphone application: Feasibility, acceptability and satisfaction
(2016)
Diego Hidalgo-Mazzei
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Ainoa Mateu
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María Reinares
;
Andrea Murru
;
Caterina del Mar Bonnín
16Scopus© Citations 101
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Functional Dysconnectivity in Ventral Striatocortical Systems in 22q11.2 Deletion Syndrome
(2021)
Ángeles Tepper
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Analía Cuiza
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Luz María Alliende
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Carlos Mena
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Juan Pablo Ramirez-Mahaluf
<jats:title>Abstract</jats:title> <jats:p>22q11.2 deletion syndrome (22q11.2DS) is a genetic neurodevelopmental disorder that represents one of the greatest known risk factors for psychosis. Previous studies in psychotic subjects without the deletion have identified a dopaminergic dysfunction in striatal regions, and dysconnectivity of striatocortical systems, as an important mechanism in the emergence of psychosis. Here, we used resting-state functional MRI to examine striatocortical functional connectivity in 22q11.2DS patients. We used a 2 × 2 factorial design including 125 subjects (55 healthy controls, 28 22q11.2DS patients without a history of psychosis, 10 22q11.2DS patients with a history of psychosis, and 32 subjects with a history of psychosis without the deletion), allowing us to identify network effects related to the deletion and to the presence of psychosis. In line with previous results from psychotic patients without 22q11.2DS, we found that there was a dorsal to ventral gradient of hypo- to hyperstriatocortical connectivity related to psychosis across both patient groups. The 22q11.2DS was additionally associated with abnormal functional connectivity in ventral striatocortical networks, with no significant differences identified in the dorsal system. Abnormalities in the ventral striatocortical system observed in these individuals with high genetic risk to psychosis may thus reflect a marker of illness risk.</jats:p>
1Scopus© Citations 6
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Brain Network Architecture Intricately Linked to Morphological Abnormalities in Major Psychiatric Disorders
(2021)
Foivos Georgiadis
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Lariviere, Sara
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Vaughan Carr
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Stanley Catts
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Green, Melissa
1
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Prodromal phase: Differences in prodromal symptoms, risk factors and markers of vulnerability in first episode mania versus first episode psychosis with onset in late adolescence or adulthood
(2022)
Norma Verdolini
;
Roger Borràs
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Giulio Sparacino
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Marina Garriga
;
Maria Sagué‐Vilavella
2Scopus© Citations 9
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The incidence of non-affective psychotic disorders in Chile between 2005 and 2018: results from a national register of over 30 000 cases
(2020)
Alfonso González-Valderrama
;
Hannah E. Jongsma
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Cristián Mena
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Carmen Paz Castañeda
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Rubén Nachar
<jats:title>Abstract</jats:title><jats:sec id="S0033291720002664_sec_a1"><jats:title>Background</jats:title><jats:p>Evidence suggests the incidence of non-affective psychotic disorders (NAPDs) varies across persons and places, but data from the Global South is scarce. We aimed to estimate the treated incidence of NAPD in Chile, and variance by person, place and time.</jats:p></jats:sec><jats:sec id="S0033291720002664_sec_a2" sec-type="methods"><jats:title>Methods</jats:title><jats:p>We used national register data from Chile including all people, 10–65 years, with the first episode of NAPD (<jats:italic>International Classification of Diseases, Tenth Revision:</jats:italic> F20–F29) between 1 January 2005 and 29 August 2018. Denominators were estimated from Chilean National Census data. Our main outcome was treated incidence of NAPD and age group, sex, calendar year and regional-level population density, multidimensional poverty and latitude were exposures of interest.</jats:p></jats:sec><jats:sec id="S0033291720002664_sec_a3" sec-type="results"><jats:title>Results</jats:title><jats:p>We identified 32 358 NAPD cases [12 136 (39.5%) women; median age-at-first-contact: 24 years (interquartile range 18–39 years)] during 171.1 million person-years [crude incidence: 18.9 per 100 000 person-years; 95% confidence interval (CI) 18.7–19.1]. Multilevel Poisson regression identified a strong age–sex interaction in incidence, with rates peaking in men (57.6 per 100 000 person-years; 95% CI 56.0–59.2) and women (29.5 per 100 000 person-years; 95% CI 28.4–30.7) between 15 and 19 years old. Rates also decreased (non-linearly) over time for women, but not men. We observed a non-linear association with multidimensional poverty and latitude, with the highest rates in the poorest regions and those immediately south of Santiago; no association with regional population density was observed.</jats:p></jats:sec><jats:sec id="S0033291720002664_sec_a4" sec-type="conclusions"><jats:title>Conclusion</jats:title><jats:p>Our findings inform the aetiology of NAPDs, replicating typical associations with age, sex and multidimensional poverty in a Global South context. The absence of association with population density suggests this risk may be context-dependent.</jats:p></jats:sec>
1Scopus© Citations 16

UNDURRAGA FOURCADE, JUAN PABLO

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