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Perrier S, Gauquelin L, Wambach JA, Bernard G. Distinguishing severe phenotypes associated with pathogenic variants in POLR3A. Am J Med Genet A 2022; 188:708-712. [PMID: 34773388 PMCID: PMC8758552 DOI: 10.1002/ajmg.a.62553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/15/2021] [Accepted: 10/23/2021] [Indexed: 02/03/2023]
Abstract
A recent report by Majethia and Girisha described a patient with
biallelic pathogenic variants in POLR3A and
Wiedemann-Rautenstrauch syndrome. In this correspondence, we compare the
features of this patient to that of a cohort of patients with severe
POLR3-related leukodystrophy and a similar genotype and clinical course. We
comment on the phenotyping and classification of POLR3-related disorders.
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Affiliation(s)
- Stefanie Perrier
- Department of Neurology and Neurosurgery, McGill
University, Montréal, Québec, Canada.,Child Health and Human Development Program, Research
Institute of the McGill University Health Centre, Montréal, Québec,
Canada
| | - Laurence Gauquelin
- Division of Pediatric Neurology, Department of Pediatrics,
CHUL et Centre mère-enfant Soleil du CHU de Québec - Université
Laval, Québec City, Québec, Canada
| | - Jennifer A. Wambach
- Division of Newborn Medicine, Edward Mallinckrodt
Department of Pediatrics, Washington University School of Medicine, Saint Louis
Children’s Hospital, Saint Louis, Missouri, USA
| | - Geneviève Bernard
- Department of Neurology and Neurosurgery, McGill
University, Montréal, Québec, Canada.,Child Health and Human Development Program, Research
Institute of the McGill University Health Centre, Montréal, Québec,
Canada.,Department of Pediatrics and Department of Human Genetics,
McGill University, Montréal, Québec, Canada.,Department of Specialized Medicine, Division of Medical
Genetics, Montreal Children’s Hospital and McGill University Health Centre,
Montréal, Québec, Canada
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2
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Báez-Becerra CT, Valencia-Rincón E, Velásquez-Méndez K, Ramírez-Suárez NJ, Guevara C, Sandoval-Hernandez A, Arboleda-Bustos CE, Olivos-Cisneros L, Gutiérrez-Ospina G, Arboleda H, Arboleda G. Nucleolar disruption, activation of P53 and premature senescence in POLR3A-mutated Wiedemann-Rautenstrauch syndrome fibroblasts. Mech Ageing Dev 2020; 192:111360. [PMID: 32976914 DOI: 10.1016/j.mad.2020.111360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 01/01/2023]
Abstract
Recently, mutations in the RNA polymerase III subunit A (POLR3A) have been described as the cause of the neonatal progeria or Wiedemann-Rautenstrauch syndrome (WRS). POLR3A has important roles in transcription regulation of small RNAs, including tRNA, 5S rRNA, and 7SK rRNA. We aim to describe the cellular and molecular features of WRS fibroblasts. Cultures of primary fibroblasts from one WRS patient [monoallelic POLR3A variant c.3772_3773delCT (p.Leu1258Glyfs*12)] and one control patient were cultured in vitro. The mutation caused a decrease in the expression of wildtype POLR3A mRNA and POLR3A protein and a sharp increase in mutant protein expression. In addition, there was an increase in the nuclear localization of the mutant protein. These changes were associated with an increase in the number and area of nucleoli and to a high increase in the expression of pP53 and pH2AX. All these changes were associated with premature senescence. The present observations add to our understanding of the differences between Hutchinson-Gilford progeria syndrome and WRS and opens new alternatives to study cell senesce and human aging.
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Affiliation(s)
- Cindy Tatiana Báez-Becerra
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Estefania Valencia-Rincón
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Karen Velásquez-Méndez
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Nelson J Ramírez-Suárez
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Claudia Guevara
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Adrian Sandoval-Hernandez
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Carlos E Arboleda-Bustos
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Leonora Olivos-Cisneros
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Gabriel Gutiérrez-Ospina
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Humberto Arboleda
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Pediatría, Facultad de Medicina, Universidad Nacional de Colombia Bogotá, Colombia
| | - Gonzalo Arboleda
- Grupo de Neurociencias y Muerte Celular, Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Patología, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia.
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3
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A functional SNP in MIR124-1, a brain expressed miRNA gene, is associated with aggressiveness in a Colombian sample. Eur Psychiatry 2020; 30:499-503. [DOI: 10.1016/j.eurpsy.2015.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/02/2015] [Accepted: 03/04/2015] [Indexed: 12/12/2022] Open
Abstract
AbstractBackground:Interpersonal violence and suicide are among the main causes of mortality and morbidity around the world. In several developing countries, such as Colombia, they are among the first five entities of public health concern. Aggressiveness is an important endophenotype for aggression and suicidal behavior, having a heritability of around 50%. Exploration of classical candidate genes, involved in serotoninergic and dopaminergic neurotransmission, has identified few consistent risk factors for aggressiveness. miRNAs are a novel class of molecules with a growing role in normal neural function and neuropsychiatric disorders; of special interest, miR-124 is a brain-specific miRNA that is key for neuronal plasticity. We evaluated the hypothesis that a functional polymorphism in MIR124-1 gene might be associated with aggressiveness in a Colombian sample.Methods:The Spanish adaptation of the refined version of the Aggression Questionnaire and the abbreviated Barratt Impulsiveness Scale were applied to 170 young subjects. The functional SNP in MIR124-1 (rs531564) was genotyped by a TaqMan assay.Results:We found a significant association between the MIR124-1 and aggressiveness in our sample, with G/G carriers having lower scores (P = 0.01). This association seemed to be specific for aggressiveness, as it was not significant for impulsiveness.Conclusions:We showed for the first time the association of a functional polymorphism in MIR124-1 and aggressiveness. Known targets of miR-124 (such as BDNF and DRD4 genes) could explain the effect of this miRNA on behavior. A future analysis of additional novel functional polymorphisms in other brain expressed miRNAs could be useful for a deeper understanding of aggression in humans.
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Jiménez KM, Pereira-Morales AJ, Adan A, Lopez-Leon S, Forero DA. Anxiety-related Endophenotypes and Hazardous Alcohol Use in Young Adults are Associated with a Functional Polymorphism in the SLC6A4 Gene. Open Neurol J 2019. [DOI: 10.2174/1874205x01913010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
A functional polymorphism (5-HTTLPR, rs4795541) in the serotonin transporter (SLC6A4) gene has been shown as an important candidate for several psychiatric and behavioral traits.
Objective:
The objective of this study was to examine the possible interaction of this polymorphism with physical neglect in childhood on the presentation of anxiety traits and hazardous alcohol consumption in young Colombian subjects.
Methods:
272 young adults (mean age: 21.3 years) were evaluated with the Childhood Trauma Questionnaire, the Zung Self-rating Anxiety Scale, the Big Five Inventory, the Cohen’s Perceived Stress Scale, the Alcohol, Smoking, Substance Involvement Screening Test and the Alcohol Use Disorders Identification Test. Genotyping for the 5-HTTLPR polymorphism was carried out using conventional PCR. A linear regression model, corrected by age and gender, was used.
Results:
We found that individuals with the L/L genotype showed higher scores on physical neglect (p=0.0047), anxiety symptoms (p=0.028), neuroticism (p=0.019) and perceived stress (p=0.035). L/L genotype was a risk factor for hazardous alcohol use in young adults (OR=3.06, p=0.0003). No GxE interactions were observed in our data.
Conclusion:
Our results provide novel evidence for the role of a functional polymorphism in the SLC6A4 gene on the relationship of childhood trauma, anxiety-related traits and risky consumption of alcohol.
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Paolacci S, Li Y, Agolini E, Bellacchio E, Arboleda-Bustos CE, Carrero D, Bertola D, Al-Gazali L, Alders M, Altmüller J, Arboleda G, Beleggia F, Bruselles A, Ciolfi A, Gillessen-Kaesbach G, Krieg T, Mohammed S, Müller C, Novelli A, Ortega J, Sandoval A, Velasco G, Yigit G, Arboleda H, Lopez-Otin C, Wollnik B, Tartaglia M, Hennekam RC. Specific combinations of biallelic POLR3A variants cause Wiedemann-Rautenstrauch syndrome. J Med Genet 2018; 55:837-846. [PMID: 30323018 DOI: 10.1136/jmedgenet-2018-105528] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/28/2018] [Accepted: 09/09/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Wiedemann-Rautenstrauch syndrome (WRS) is a form of segmental progeria presenting neonatally, characterised by growth retardation, sparse scalp hair, generalised lipodystrophy with characteristic local fatty tissue accumulations and unusual face. We aimed to understand its molecular cause. METHODS We performed exome sequencing in two families, targeted sequencing in 10 other families and performed in silico modelling studies and transcript processing analyses to explore the structural and functional consequences of the identified variants. RESULTS Biallelic POLR3A variants were identified in eight affected individuals and monoallelic variants of the same gene in four other individuals. In the latter, lack of genetic material precluded further analyses. Multiple variants were found to affect POLR3A transcript processing and were mostly located in deep intronic regions, making clinical suspicion fundamental to detection. While biallelic POLR3A variants have been previously reported in 4H syndrome and adolescent-onset progressive spastic ataxia, recurrent haplotypes specifically occurring in individuals with WRS were detected. All WRS-associated POLR3A amino acid changes were predicted to perturb substantially POLR3A structure/function. CONCLUSION Biallelic mutations in POLR3A, which encodes for the largest subunit of the DNA-dependent RNA polymerase III, underlie WRS. No isolated functional sites in POLR3A explain the phenotype variability in POLR3A-related disorders. We suggest that specific combinations of compound heterozygous variants must be present to cause the WRS phenotype. Our findings expand the molecular mechanisms contributing to progeroid disorders.
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Affiliation(s)
- Stefano Paolacci
- Department of Experimental Medicine, Sapienza "University of Rome", Rome, Italy
| | - Yun Li
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Emanuele Agolini
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Emanuele Bellacchio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Carlos E Arboleda-Bustos
- Neuroscience and Cell Death Group, Faculty of Medicine and Institute of Genetics, Universidad Nacional de Colombia, Bogota, Colombia
| | - Dido Carrero
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, and Centro de Investigación Biomédica en Red de Cáncer, Oviedo, Spain
| | - Debora Bertola
- Unidade de Genética do Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, e Centro de Estudos sobre o Genoma Humano e Células-Tronco do Instituto de Biociências da Universidade de São Paulo, São Paulo, Brazil
| | - Lihadh Al-Gazali
- Department of Paediatric, College of Medicine and Health Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mariel Alders
- Department of Clinical Genetics, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Janine Altmüller
- Cologne Centre for Genomics and Centre for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Gonzalo Arboleda
- Neuroscience and Cell Death Group, Faculty of Medicine and Institute of Genetics, Universidad Nacional de Colombia, Bogota, Colombia
| | - Filippo Beleggia
- Department of Internal Medicine I, University Hospital Cologne, Cologne, Germany
| | - Alessandro Bruselles
- Dipartimento di Oncologia e Medicina Molecolare, Istituto Superiore di Sanità, Rome, Italy
| | - Andrea Ciolfi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | | | - Thomas Krieg
- Department of Dermatology, University Hospital Cologne, Cologne, Germany
| | | | - Christian Müller
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Antonio Novelli
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Jenny Ortega
- Neuroscience and Cell Death Group, Faculty of Medicine and Institute of Genetics, Universidad Nacional de Colombia, Bogota, Colombia
| | - Adrian Sandoval
- Neuroscience and Cell Death Group, Faculty of Medicine and Institute of Genetics, Universidad Nacional de Colombia, Bogota, Colombia
| | - Gloria Velasco
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, and Centro de Investigación Biomédica en Red de Cáncer, Oviedo, Spain
| | - Gökhan Yigit
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Humberto Arboleda
- Neuroscience and Cell Death Group, Faculty of Medicine and Institute of Genetics, Universidad Nacional de Colombia, Bogota, Colombia
| | - Carlos Lopez-Otin
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, and Centro de Investigación Biomédica en Red de Cáncer, Oviedo, Spain
| | - Bernd Wollnik
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Raoul C Hennekam
- Department of Paediatrics, Amsterdam UMC - location AMC, University of Amsterdam, Amsterdam, The Netherlands
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González-Giraldo Y, González-Reyes RE, Mueller ST, Piper BJ, Adan A, Forero DA. Situation Awareness Performance in Healthy Young Adults Is Associated With a Serotonin Transporter Gene Polymorphism. Psychol Rep 2018; 121:877-891. [PMID: 29298559 DOI: 10.1177/0033294117740136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Situation awareness (SA) is defined in three levels: SA1 is the perception of the elements in a specific context, SA2 is the comprehension of their meaning, and SA3 is the projection of their status. Purpose To analyze the possible association of a genetic polymorphism in the serotonin transporter ( SLC6A4) gene and performance on the Situational Awareness test (SAtest). Methods SAtest was applied to a sample of 230 healthy Colombian subjects, using the Psychology Experiment Building Language platform and a functional polymorphism in the SLC6A4 gene was genotyped by polymerase chain reaction. Results In the SA1 level, s/s genotype carriers had worse accuracy, in comparison with s/l and l/l genotypes. At SA2 level, l/l genotype carriers had better accuracy than s/s and s/l individuals and that in the SA3 level, l/l carriers also had better accuracy. These associations were significant after correction for multiple testing. Conclusions It is possible that l/l carriers have a better ability to perceive and focus their attention on the elements of their environment and to have the capacity to understand and predict what will happen with those elements. This is the first genetic study of SA performance in healthy participants. Additional investigations of other genes could contribute to the understanding of the molecular correlates of SA in healthy subjects and in neuropsychiatric patients.
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Affiliation(s)
- Yeimy González-Giraldo
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Rodrigo E González-Reyes
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Shane T Mueller
- Department of Cognitive and Learning Sciences, Michigan Technological University, Houghton, MI, USA
| | | | - Ana Adan
- Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain; Institute for Brain, Cognition and Behavior (IR3C), Barcelona, Spain
| | - Diego A Forero
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
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Paolacci S, Bertola D, Franco J, Mohammed S, Tartaglia M, Wollnik B, Hennekam RC. Wiedemann-Rautenstrauch syndrome: A phenotype analysis. Am J Med Genet A 2017; 173:1763-1772. [DOI: 10.1002/ajmg.a.38246] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 03/13/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Stefano Paolacci
- Department of Experimental Medicine; “Sapienza” University of Rome; Rome Italy
| | - Debora Bertola
- Unidade de Genética do Instituto da Criança; Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; São Paulo Brazil
| | - José Franco
- Unidade de Genética do Instituto da Criança; Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; São Paulo Brazil
| | - Shehla Mohammed
- Department of Clinical Genetics; Guy's Hospital; London United Kingdom
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division; Ospedale Pediatrico Bambino Gesù; Rome Italy
| | - Bernd Wollnik
- Institute of Human Genetics; University Medical Center Göttingen; Göttingen Germany
| | - Raoul C. Hennekam
- Department of Pediatrics; Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
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8
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González-Giraldo Y, Rodríguez-Dueñas M, Forero DA. Development of Novel High-Resolution Melting-Based Assays for Genotyping Two Alu Insertion Polymorphisms (FXIIIB and PV92). Mol Biotechnol 2016; 58:197-201. [PMID: 26843017 DOI: 10.1007/s12033-016-9915-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Insertion/Deletion polymorphisms (InDels) are a common type of genetic variation, with a growing role in population genetics and applied genomics. There is the need for the development of novel cost-effective assays for genotyping InDels of high importance. The main objective of this study was to develop high-resolution melting-based assays for genotyping two commonly studied Alu insertion polymorphisms: FXIIIB and PV92 (rs70942849 and rs3138523). Three primers (two forward and one reverse) were designed for each marker, and high-resolution melting (HRM) analyses in a qPCR platform were performed, using EvaGreen fluorescent dye. For each one of the two Alu insertion polymorphisms, HRM analyses identified distinguishable peaks for the three genotypes, allowing a robust genotyping. Results were validated using 96 DNA samples previously genotyped and the assays worked with different DNA concentrations. In this study, we developed novel cost-effective assays, using qPCR, for genotyping two Alu insertion polymorphisms (widely used as ancestry markers). Our results highlight the feasibility of using HRM analyses for genotyping InDel polymorphisms of medical and biotechnological importance.
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Affiliation(s)
- Yeimy González-Giraldo
- Department of Nutrition and Biochemistry, School of Sciences, Pontificia Universidad Javeriana, Bogotá, Colombia.,Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Marisol Rodríguez-Dueñas
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia.,Faculty of Science, Universidad Antonio Nariño, Bogotá, Colombia
| | - Diego A Forero
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia.
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González-Giraldo Y, Rojas J, Novoa P, Mueller ST, Piper BJ, Adan A, Forero DA. Functional polymorphisms in BDNF and COMT genes are associated with objective differences in arithmetical functioning in a sample of young adults. Neuropsychobiology 2015; 70:152-7. [PMID: 25358337 DOI: 10.1159/000366483] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 08/05/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Understanding the molecular genetics of complex human behaviors and functions remains a substantial challenge for the neurosciences. Previous studies have shown a genetic basis for individual differences in mathematical functioning; however, the specific genes remain to be completely identified. In the present study, we explored the possibility that 2 functional polymorphisms in candidate genes could be associated with differences in arithmetical performance. METHODS A computerized test to analyze performance in basic arithmetical calculations (additions and subtractions) was applied to 168 healthy young Colombian participants using the PEBL (Psychology Experiment Building Language) battery. DNA samples were genotyped for 2 functional SNPs in candidate genes: brain-derived neurotrophic factor (BDNF)-Val66Met and catechol-O-methyltransferase (COMT)-Val158Met. RESULTS We found significant differences for arithmetical processing scores between genotypes. For BDNF, Val/Val subjects had a worse performance (p value: 0.025) and for COMT, Val/Val carriers had a better performance (p value: 0.006). A multivariate model, including both BDNF and COMT genes, accounted for 7.1% of the variance in math processing scores. DISCUSSION To our knowledge, this is the first study finding associations of polymorphisms in BDNF and COMT genes with quantitative measures of numerical aptitude in healthy young participants. A future study of other genes involved in neural plasticity could be helpful to identify genetic correlates of arithmetical functioning, which will be important for the understanding of normal human behaviors and related neuropsychiatric disorders.
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Affiliation(s)
- Yeimy González-Giraldo
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
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10
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SPECK-HERNÁNDEZ CÉSARA, OJEDA DIEGOA, CASTRO-VEGA LUISJ, FORERO DIEGOA. Relative telomere length is associated with a functional polymorphism in the monoamine oxidase A gene in a South American sample. J Genet 2015; 94:305-8. [DOI: 10.1007/s12041-015-0513-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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González-Giraldo Y, González-Reyes RE, Mueller ST, Piper BJ, Adan A, Forero DA. Differences in planning performance, a neurocognitive endophenotype, are associated with a functional variant in PER3 gene. Chronobiol Int 2015; 32:591-5. [PMID: 25798540 DOI: 10.3109/07420528.2015.1014096] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Performance alterations in executive function have been studied as potential endophenotypes for several neuropsychiatric diseases. Planning is an important component of executive function and has been shown to be affected in diseases such as attention deficit hyperactivity disorder, schizophrenia, obsessive-compulsive disorder and Parkinson's disease. Several genes related to dopaminergic systems, such as COMT, have been explored as candidates for influencing planning performance. The circadian clock gene PERIOD3 (PER3) has been shown to be associated with several complex behaviors in humans and could be involved in different signaling mechanisms. In this study, we evaluated the possible association between a functional polymorphism in the PER3 gene (PER3-VNTR, rs57875989) and performance in a commonly used test of planning (Tower of London, TOL) in 229 healthy subjects from Bogotá, Colombia. PER3-VNTR genotyping was carried out with conventional PCR and all participants completed the TOL test using the computerized Psychology Experiment Building Language (PEBL) battery. A linear regression model was used for the analysis of association with the SNPStats program. We found that 4/4 genotype carriers showed a better performance and made fewer moves, in comparison to 4/5 and 5/5 genotype carriers (p = 0.003). These results appear to be independent from effects of this polymorphism on self-reported average hours of sleep during work days in our sample. This is the first evidence of an association between PER3-VNTR and planning performance in a sample of healthy subjects and our results are consistent from previous findings for alterations in other cognitive domains. Future studies examining additional genes could lead to the identification of novel molecular underpinnings of planning in healthy subjects and in patients with neuropsychiatric disorders.
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Affiliation(s)
- Yeimy González-Giraldo
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño , Bogotá , Colombia
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No Association of BDNF, COMT, MAOA, SLC6A3, and SLC6A4 Genes and Depressive Symptoms in a Sample of Healthy Colombian Subjects. DEPRESSION RESEARCH AND TREATMENT 2015; 2015:145483. [PMID: 26557993 PMCID: PMC4618323 DOI: 10.1155/2015/145483] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/10/2015] [Accepted: 09/20/2015] [Indexed: 01/09/2023]
Abstract
Background. Major depressive disorder (MDD) is the second cause of years lived with disability around the world. A large number of studies have been carried out to identify genetic risk factors for MDD and related endophenotypes, mainly in populations of European and Asian descent, with conflicting results. The main aim of the current study was to analyze the possible association of five candidate genes and depressive symptoms in a Colombian sample of healthy subjects. Methods and Materials. The Spanish adaptation of the Hospital Anxiety and Depression Scale (HADS) was applied to one hundred eighty-eight healthy Colombian subjects. Five functional polymorphisms were genotyped using PCR-based assays: BDNF-Val66Met (rs6265), COMT-Val158Met (rs4680), SLC6A4-HTTLPR (rs4795541), MAOA-uVNTR, and SLC6A3-VNTR (rs28363170). Result. We did not find significant associations with scores of depressive symptoms, derived from the HADS, for any of the five candidate genes (nominal p values >0.05). In addition, we did not find evidence of significant gene-gene interactions. Conclusion. This work is one of the first studies of candidate genes for depressive symptoms in a Latin American sample. Study of additional genetic and epigenetic variants, taking into account other pathophysiological theories, will help to identify novel candidates for MDD in populations around the world.
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13
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Becerra CH, Contreras-García GA, Perez Vera LA, Díaz-Martínez LA, Beltran Avendaño MA, Salazar Martínez HA. Wiedemann-Rautenstrauch syndrome prenatal diagnosis. J Perinatol 2014; 34:954-6. [PMID: 25421132 DOI: 10.1038/jp.2014.156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 06/30/2014] [Accepted: 07/07/2014] [Indexed: 11/09/2022]
Affiliation(s)
- C H Becerra
- Maternal-Fetal Unit, Department of Obstetrics and Gynecology, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - G A Contreras-García
- 1] Maternal-Fetal Unit, Department of Obstetrics and Gynecology, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia [2] Department of Pediatrics, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - L A Perez Vera
- Department of Pediatrics, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - L A Díaz-Martínez
- 1] Maternal-Fetal Unit, Department of Obstetrics and Gynecology, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia [2] Department of Pediatrics, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - M A Beltran Avendaño
- Maternal-Fetal Unit, Department of Obstetrics and Gynecology, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - H A Salazar Martínez
- Maternal-Fetal Unit, Department of Obstetrics and Gynecology, Medicine School, Health Faculty, Universidad Industrial de Santander, Bucaramanga, Colombia
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14
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Ojeda DA, López-León S, Forero DA. A novel cost-effective assay based on real-time PCR for COMT Val158Met genotyping. Biomarkers 2014; 19:567-70. [DOI: 10.3109/1354750x.2014.948069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Diego A. Ojeda
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño
BogotáColombia
- School of Sciences, Universidad Antonio Nariño
BogotáColombia
| | | | - Diego A. Forero
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño
BogotáColombia
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15
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Shawky RM, Abd-Elkhalek HS, Gad S, Seifeldin NS. Neonatal progeroid syndrome (Wiedemann-Rautenstrauch syndrome) in an Egyptian child with premature loss of teeth, and café au lait skin patches. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2012. [DOI: 10.1016/j.ejmhg.2012.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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16
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Arboleda G, Morales LC, Quintero L, Arboleda H. Neonatal progeroid syndrome (Wiedemann-Rautenstrauch syndrome): Report of three affected sibs. Am J Med Genet A 2011; 155A:1712-5. [DOI: 10.1002/ajmg.a.34019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Accepted: 03/03/2011] [Indexed: 12/27/2022]
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