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Heritability of Age of Onset of Psychosis in Schizophrenia
(AMERICAN JOURNAL OF MEDICAL GENETICS PART B, 2009-04)
Schizophrenia is a genetically complex illness with heterogeneous clinical presentation, including variable age ofonset. In this study, the heritability, or proportion of variation in age of onset of psychotic symptoms due ...
High mitochondrial mutation rates estimated from deep-rooting Costa Rican pedigrees
(American Journal of Physical Anthropology 2012 July ; 148(3): 327–333., 2012-07)
Estimates of mutation rates for the noncoding hypervariable Region I (HVR-I) of mitochondrial
DNA (mtDNA) vary widely, depending on whether they are inferred from phylogenies (assuming
that molecular evolution is clock-like) ...
The gene for an inherited form of deafness maps to chromosome 5q31
(1992-06-01)
Primary-i.e., nonsyndromal-postlingual deafness is inherited as an autosomal dominant phenotype in a large kindred in Costa Rica. Genetically susceptible individuals begin to lose hearing at low frequencies at about age ...
A schizophrenia gene locus on chromosome 17q21 in a new set of families of mexican and central american ancestry: evidence from the NIMH genetics of schizophrenia in latino populations study
(Am J Psychiatry 2009;166:442-449, 2009-02-02)
The present study investigated a new set of families of Latin American ancestry in order to detect the location of genes predisposing to schizophrenia and related psychotic disorders. Method: A genome-wide scan was performed ...
In vivo and in vitro genetic evidence of involvement of neuregulin 1 in immune system dysregulation
(J Mol Med (Berl). 2010 November ; 88(11): 1133–1141, 2010-11)
Neuregulin 1 (NRG1) has been implicated in several disorders including breast cancer, multiple sclerosis, and schizophrenia. Also, recent evidence suggests that NRG1 may play a role in regulation of inflammation and immune ...
The epsin 4 gene is associated with psychotic disorders in families of Latin American origin
(Schizophrenia Research vol. 106, num 2 (2008) 253–257, 2008-10-20)
This study attempted to replicate evidence for association of the Epsin 4 gene (which encodes
enthoprotin, a protein involved in vesicular transport) to schizophrenia in a new sample of
families segregating schizophrenia ...
Heritability of Cognitive Functions in Families of Successful Cognitive Aging Probands from the Central Valley of Costa Rica
(J Alzheimers Dis. 2011 ; 27(4): 897–907. doi:10.3233/JAD-2011-110782., 2011)
We sought to identify cognitive phenotypes for family/genetic studies of successful cognitive
aging (SCA; maintaining intact cognitive functioning while living to late old age).We
administered a battery of neuropsychological ...
Resultados de la categorización de una muestra de pacientes con diagnóstico de egreso de esquizofrenia
(Acta Médica Costarricense, abril-junio 2002, vol 44 (2), 2002-04)
La esquizofrenia es una enfermedad que afecta aproximadamente al 1% de la población mundial. Es
una de las enfermedades psiquiátricas más debilitantes con un alto costo económico, social, familiar y personal.
En Costa ...
Papel del estrés oxidativo en la esquizofrenia
The role of oxidative stress in schizophrenia
(2008)
La esquizofrenia es una enfermedad mental severa que se presenta en alrededor del 1% de la
población mundial. Para que se manifieste son necesarios tanto factores genéticos como
ambientales, por lo que el genotipo de ...
Meta-analysis of 32 genome-wide linkage studies of schizophrenia
(Molecular Psychiatry (2008), 1–12, Nature Publishing Group, 2008-12-30)
A genome scan meta analysis (GSMA) was carried out on 32 independent genome-wide linkage scan analyses that included 3255 pedigrees with 7413 genotyped cases affected with schizophrenia (SCZ) or related disorders. The ...