51
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Franzmeier N, Ren J, Damm A, Monté-Rubio G, Boada M, Ruiz A, Ramirez A, Jessen F, Düzel E, Rodríguez Gómez O, Benzinger T, Goate A, Karch CM, Fagan AM, McDade E, Buerger K, Levin J, Duering M, Dichgans M, Suárez-Calvet M, Haass C, Gordon BA, Lim YY, Masters CL, Janowitz D, Catak C, Wolfsgruber S, Wagner M, Milz E, Moreno-Grau S, Teipel S, Grothe MJ, Kilimann I, Rossor M, Fox N, Laske C, Chhatwal J, Falkai P, Perneczky R, Lee JH, Spottke A, Boecker H, Brosseron F, Fliessbach K, Heneka MT, Nestor P, Peters O, Fuentes M, Menne F, Priller J, Spruth EJ, Franke C, Schneider A, Westerteicher C, Speck O, Wiltfang J, Bartels C, Araque Caballero MÁ, Metzger C, Bittner D, Salloway S, Danek A, Hassenstab J, Yakushev I, Schofield PR, Morris JC, Bateman RJ, Ewers M. The BDNF Val66Met SNP modulates the association between beta-amyloid and hippocampal disconnection in Alzheimer's disease. Mol Psychiatry 2021; 26:614-628. [PMID: 30899092 PMCID: PMC6754794 DOI: 10.1038/s41380-019-0404-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/19/2019] [Accepted: 02/14/2019] [Indexed: 01/29/2023]
Abstract
In Alzheimer's disease (AD), a single-nucleotide polymorphism in the gene encoding brain-derived neurotrophic factor (BDNFVal66Met) is associated with worse impact of primary AD pathology (beta-amyloid, Aβ) on neurodegeneration and cognitive decline, rendering BDNFVal66Met an important modulating factor of cognitive impairment in AD. However, the effect of BDNFVal66Met on functional networks that may underlie cognitive impairment in AD is poorly understood. Using a cross-validation approach, we first explored in subjects with autosomal dominant AD (ADAD) from the Dominantly Inherited Alzheimer Network (DIAN) the effect of BDNFVal66Met on resting-state fMRI assessed functional networks. In seed-based connectivity analysis of six major large-scale networks, we found a stronger decrease of hippocampus (seed) to medial-frontal connectivity in the BDNFVal66Met carriers compared to BDNFVal homozogytes. BDNFVal66Met was not associated with connectivity in any other networks. Next, we tested whether the finding of more pronounced decrease in hippocampal-medial-frontal connectivity in BDNFVal66Met could be also found in elderly subjects with sporadically occurring Aβ, including a group with subjective cognitive decline (N = 149, FACEHBI study) and a group ranging from preclinical to AD dementia (N = 114, DELCODE study). In both of these independently recruited groups, BDNFVal66Met was associated with a stronger effect of more abnormal Aβ-levels (assessed by biofluid-assay or amyloid-PET) on hippocampal-medial-frontal connectivity decreases, controlled for hippocampus volume and other confounds. Lower hippocampal-medial-frontal connectivity was associated with lower global cognitive performance in the DIAN and DELCODE studies. Together these results suggest that BDNFVal66Met is selectively associated with a higher vulnerability of hippocampus-frontal connectivity to primary AD pathology, resulting in greater AD-related cognitive impairment.
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Affiliation(s)
- Nicolai Franzmeier
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Jinyi Ren
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Alexander Damm
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Gemma Monté-Rubio
- grid.477255.60000 0004 1765 5601Fundació ACE, Alzheimer Treatment and Research Center, Barcelona, Spain
| | - Mercè Boada
- grid.477255.60000 0004 1765 5601Fundació ACE, Alzheimer Treatment and Research Center, Barcelona, Spain ,grid.451322.30000 0004 1770 9462CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, National Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
| | - Agustín Ruiz
- grid.477255.60000 0004 1765 5601Fundació ACE, Alzheimer Treatment and Research Center, Barcelona, Spain ,grid.451322.30000 0004 1770 9462CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, National Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
| | - Alfredo Ramirez
- grid.6190.e0000 0000 8580 3777Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany ,grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany
| | - Frank Jessen
- grid.6190.e0000 0000 8580 3777Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Emrah Düzel
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Octavio Rodríguez Gómez
- grid.477255.60000 0004 1765 5601Fundació ACE, Alzheimer Treatment and Research Center, Barcelona, Spain ,grid.451322.30000 0004 1770 9462CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, National Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
| | - Tammie Benzinger
- grid.4367.60000 0001 2355 7002Department of Radiology, Washington University in St Louis, St Louis, MO USA ,grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA
| | - Alison Goate
- grid.59734.3c0000 0001 0670 2351Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.59734.3c0000 0001 0670 2351Ronald M. Loeb Center for Alzheimer’s Disease, Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Celeste M. Karch
- grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Hope Center for Neurological Disorders, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Psychiatry, Washington University in St Louis, St Louis, MO USA
| | - Anne M. Fagan
- grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Hope Center for Neurological Disorders, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Neurology, Washington University in St. Louis, St. Louis, MO USA
| | - Eric McDade
- grid.4367.60000 0001 2355 7002Department of Neurology, Washington University in St. Louis, St. Louis, MO USA
| | - Katharina Buerger
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Johannes Levin
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.5252.00000 0004 1936 973XDepartment of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Marco Duering
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Martin Dichgans
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.452617.3Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Marc Suárez-Calvet
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.430077.7Barcelonabeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Catalonia Spain ,grid.5252.00000 0004 1936 973XFaculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christian Haass
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.5252.00000 0004 1936 973XFaculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Brian A. Gordon
- grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Psychological and Brain Sciences, Washington University, St. Louis, MO USA
| | - Yen Ying Lim
- grid.1008.90000 0001 2179 088XThe Florey Institute, The University of Melbourne, Parkville, VIC Australia
| | - Colin L. Masters
- grid.1008.90000 0001 2179 088XThe Florey Institute, The University of Melbourne, Parkville, VIC Australia
| | - Daniel Janowitz
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Cihan Catak
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany
| | - Steffen Wolfsgruber
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Michael Wagner
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Esther Milz
- grid.6190.e0000 0000 8580 3777Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany
| | - Sonia Moreno-Grau
- grid.477255.60000 0004 1765 5601Fundació ACE, Alzheimer Treatment and Research Center, Barcelona, Spain ,grid.451322.30000 0004 1770 9462CIBERNED, Center for Networked Biomedical Research on Neurodegenerative Diseases, National Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
| | - Stefan Teipel
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany ,grid.413108.f0000 0000 9737 0454Department of Psychosomatic Medicine, University Hospital Rostock, Rostock, Germany
| | - Michel J Grothe
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
| | - Ingo Kilimann
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
| | - Martin Rossor
- grid.83440.3b0000000121901201Dementia Research Centre, University College London, Queen Square, London, UK
| | - Nick Fox
- grid.83440.3b0000000121901201Dementia Research Centre, University College London, Queen Square, London, UK
| | - Christoph Laske
- grid.428620.aHertie Institute for Clinical Brain Research, Tübingen, Germany ,grid.424247.30000 0004 0438 0426Germany and German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Jasmeer Chhatwal
- grid.38142.3c000000041936754XMassachusetts General Hospital, Department of Neurology, Harvard Medical School, Boston, MA USA
| | - Peter Falkai
- grid.5252.00000 0004 1936 973XDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Robert Perneczky
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.452617.3Munich Cluster for Systems Neurology (SyNergy), Munich, Germany ,grid.5252.00000 0004 1936 973XDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilians-Universität München, Munich, Germany ,grid.7445.20000 0001 2113 8111Neuroepidemiology and Ageing Research Unit, School of Public Health, The Imperial College of Science, Technology and Medicine, London, UK
| | - Jae-Hong Lee
- grid.413967.e0000 0001 0842 2126Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Annika Spottke
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany ,grid.10388.320000 0001 2240 3300Department of Neurology, University of Bonn, Bonn, Germany
| | - Henning Boecker
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany ,grid.10388.320000 0001 2240 3300Department of Radiology, University of Bonn, Bonn, Germany
| | - Frederic Brosseron
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Klaus Fliessbach
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Michael T. Heneka
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Peter Nestor
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany ,grid.1003.20000 0000 9320 7537Queensland Brain Institute, University of Queensland, Brisbane, QLD Australia
| | - Oliver Peters
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Manuel Fuentes
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Felix Menne
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Psychiatry and Psychotherapy, Charité, Berlin, Germany
| | - Josef Priller
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Neuropsychiatry, Charité, Berlin, Germany
| | - Eike J. Spruth
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Neuropsychiatry, Charité, Berlin, Germany
| | - Christiana Franke
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany ,grid.6363.00000 0001 2218 4662Department of Neuropsychiatry, Charité, Berlin, Germany
| | - Anja Schneider
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Christine Westerteicher
- grid.10388.320000 0001 2240 3300Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Oliver Speck
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany ,grid.418723.b0000 0001 2109 6265Leibniz Institute for Neurobiology, Magdeburg, Germany ,grid.452320.20000 0004 0404 7236Center for Behavioral Brain Sciences, Magdeburg, Germany ,grid.5807.a0000 0001 1018 4307Department for Biomedical Magnetic Resonance, Institute for Physics, Otto-von-Guericke University, Magdeburg, Germany
| | - Jens Wiltfang
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany ,grid.7450.60000 0001 2364 4210Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Goettingen, Germany ,grid.7311.40000000123236065iBiMED, Medical Sciences Department, University of Aveiro, Aveiro, Portugal
| | - Claudia Bartels
- grid.7450.60000 0001 2364 4210Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Goettingen, Germany
| | - Miguel Ángel Araque Caballero
- grid.5252.00000 0004 1936 973XInstitute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany ,grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Coraline Metzger
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Daniel Bittner
- grid.424247.30000 0004 0438 0426German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Stephen Salloway
- grid.40263.330000 0004 1936 9094Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI USA
| | - Adrian Danek
- grid.5252.00000 0004 1936 973XDepartment of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jason Hassenstab
- grid.4367.60000 0001 2355 7002Department of Neurology, Washington University in St. Louis, St. Louis, MO USA
| | - Igor Yakushev
- grid.6936.a0000000123222966Department of Nuclear Medicine, Technical University of Munich, Munich, Germany
| | - Peter R. Schofield
- grid.250407.40000 0000 8900 8842Neuroscience Research Australia, Barker Street Randwick, Sydney, NSW 2031 Australia ,grid.1005.40000 0004 4902 0432School of Medical Sciences, University of New South Wales, Sydney, NSW 2052 Australia
| | - John C. Morris
- grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Psychiatry, Washington University in St Louis, St Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Neurology, Washington University in St. Louis, St. Louis, MO USA
| | - Randall J. Bateman
- grid.4367.60000 0001 2355 7002Knight Alzheimer’s Disease Research Center, Washington University in St. Louis, St. Louis, MO USA ,grid.4367.60000 0001 2355 7002Department of Neurology, Washington University in St. Louis, St. Louis, MO USA
| | - Michael Ewers
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität LMU, Munich, Germany.
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Halloway S, Jung M, Yeh AY, Liu J, McAdams E, Barley M, Dorsey SG, Pressler SJ. An Integrative Review of Brain-Derived Neurotrophic Factor and Serious Cardiovascular Conditions. Nurs Res 2020; 69:376-390. [PMID: 32555009 DOI: 10.1097/nnr.0000000000000454] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND There is emerging evidence that supports a role for brain-derived neurotrophic factor (BDNF) in the risk and presence of serious cardiovascular conditions. However, few existing literature reviews methodically describe empirical findings regarding this relationship. OBJECTIVES The purpose of this integrative review was to (a) evaluate BDNF (serum/plasma BDNF levels, BDNF Val66Met genotype) among humans at risk for or with serious cardiovascular conditions and (b) investigate the relationship between BDNF and risk/presence of serious cardiovascular conditions in humans. METHODS An integrative review was conducted. Articles in English included human subjects, a measure of BDNF levels or BDNF gene, serious cardiovascular conditions, and quantitative data analyses. The search resulted in 475 unique titles, with the final sample including 35 articles representing 30 studies. Articles that received "good" or "fair" ratings (n = 31) using the National Heart, Lung, and Blood Institute Study Quality Assessment Tools were included for synthesis. RESULTS The retrieved articles were largely nonexperimental, with sample sizes ranging from 20 to 5,510 participants. Overall, BDNF levels were lower in patients with chronic heart failure and stroke, but higher in patients with unstable angina and recent myocardial infarction. Lower BDNF levels were associated with higher incidence of cardiovascular events in patients with a prior history of serious cardiovascular conditions and decreased cardiovascular risk in healthy samples. For BDNF genotype, on average, 36.3% of participants had Met alleles. The frequency of the BDNF Met allele varied across race/ethnicity and cardiovascular conditions and in terms of association with serious cardiovascular condition incidence/risk. DISCUSSION These findings indicate an emerging area of science. Future investigation is needed on serious cardiovascular condition phenotypes in relationship to BDNF in the same study conditions. Results also suggest for use of standardized BDNF measurement across studies and additional investigation in cardiovascular inflammatory processes that affect BDNF. Moreover, within specific populations, the frequency of Met alleles may be too low to be detected in sample sizes normally found in these types of studies.
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Affiliation(s)
- Shannon Halloway
- Shannon Halloway, PhD, RN, is Assistant Professor, College of Nursing, Rush University, Chicago, Illinois. Miyeon Jung, PhD, RN, is Assistant Professor, School of Nursing, Indiana University, Indianapolis. An-Yun Yeh, PhD, RN, is Assistant Professor, Hunter-Bellevue School of Nursing, New York, New York. Jia Liu, PhD, RN, is Visiting Research Associate, School of Nursing, Indiana University, Indianapolis Ellen McAdams, BSW, Student, Indiana University-Purdue University Indianapolis. She is now an Industrial/Organizational Psychology Student, East Carolina University Department of Psychology, Greenville, North Carolina. Maddison Barley, is Nursing Student, Indiana University-Purdue University Indianapolis. Susan G. Dorsey, PhD, RN, FAAN, is Professor and Chair, Department of Pain and Translational Symptom Science, School of Nursing, University of Maryland, Baltimore. Susan J. Pressler, PhD, RN, FAAN, FAHA, is Professor, Sally Reahard Chair, and the Director of the Center for Enhancing Quality of Life in Chronic Illness, School of Nursing, Indiana University, Indianapolis
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Chen MH, Kao CF, Tsai SJ, Li CT, Lin WC, Hong CJ, Bai YM, Tu PC, Su TP. Treatment response to low-dose ketamine infusion for treatment-resistant depression: A gene-based genome-wide association study. Genomics 2020; 113:507-514. [PMID: 33370585 DOI: 10.1016/j.ygeno.2020.12.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/20/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUNDS Evidence suggested the crucial roles of brain-derived neurotrophic factor (BDNF) and glutamate system functioning in the antidepressant mechanisms of low-dose ketamine infusion in treatment-resistant depression (TRD). METHODS 65 patients with TRD were genotyped for 684,616 single nucleotide polymorphisms (SNPs). Twelve ketamine-related genes were selected for the gene-based genome-wide association study on the antidepressant effect of ketamine infusion and the resulting serum ketamine and norketamine levels. RESULTS Specific SNPs and whole genes involved in BDNF-TrkB signaling (i.e., rs2049048 in BDNF and rs10217777 in NTRK2) and the glutamatergic and GABAergic systems (i.e., rs16966731 in GRIN2A) were associated with the rapid (within 240 min) and persistent (up to 2 weeks) antidepressant effect of low-dose ketamine infusion and with serum ketamine and norketamine levels. DISCUSSION Our findings confirmed the predictive roles of BDNF-TrkB signaling and glutamatergic and GABAergic systems in the underlying mechanisms of low-dose ketamine infusion for TRD treatment.
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Affiliation(s)
- Mu-Hong Chen
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Chung-Feng Kao
- Department of Agronomy, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan; Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.
| | - Shih-Jen Tsai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.
| | - Cheng-Ta Li
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Wei-Chen Lin
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Chen-Jee Hong
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Ya-Mei Bai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Pei-Chi Tu
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tung-Ping Su
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan.
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de Las Heras B, Rodrigues L, Cristini J, Weiss M, Prats-Puig A, Roig M. Does the Brain-Derived Neurotrophic Factor Val66Met Polymorphism Modulate the Effects of Physical Activity and Exercise on Cognition? Neuroscientist 2020; 28:69-86. [PMID: 33300425 DOI: 10.1177/1073858420975712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Val66Met is a polymorphism of the brain-derived neurotrophic factor (BDNF) gene that encodes a substitution of a valine (Val) to methionine (Met) amino acid. Carrying this polymorphism reduces the activity-dependent secretion of the BDNF protein, which can potentially affect brain plasticity and cognition. We reviewed the biology of Val66Met and surveyed 26 studies (11,417 participants) that examined the role of this polymorphism in moderating the cognitive response to physical activity (PA) and exercise. Nine observational studies confirmed a moderating effect of Val66Met on the cognitive response to PA but differences between Val and Met carriers were inconsistent and only significant in some cognitive domains. Only five interventional studies found a moderating effect of Val66Met on the cognitive response to exercise, which was also inconsistent in its direction. Two studies showed a superior cognitive response in Val carriers and three studies showed a better response in Met carriers. These results do not support a general and consistent effect of Val66Met in moderating the cognitive response to PA or exercise. Both Val and Met carriers can improve specific aspects of cognition by increasing PA and engaging in exercise. Causes for discrepancies among studies, effect moderators, and future directions are discussed.
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Affiliation(s)
- Bernat de Las Heras
- Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Quebec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Lynden Rodrigues
- Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Quebec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Jacopo Cristini
- Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Quebec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Maxana Weiss
- Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Quebec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Anna Prats-Puig
- University School of Health and Sport (EUSES), University of Girona, Girona, Catalunya, Spain
| | - Marc Roig
- Memory and Motor Rehabilitation Laboratory (MEMORY-LAB), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation (CRIR), Laval, Quebec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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The BDNF Val66Met polymorphism (rs6265) enhances dopamine neuron graft efficacy and side-effect liability in rs6265 knock-in rats. Neurobiol Dis 2020; 148:105175. [PMID: 33188920 PMCID: PMC7855552 DOI: 10.1016/j.nbd.2020.105175] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 01/10/2023] Open
Abstract
Prevalent in approximately 20% of the worldwide human population, the
rs6265 (also called ‘Val66Met’) single nucleotide polymorphism
(SNP) in the gene for brain-derived neurotrophic factor (BDNF)
is a common genetic variant that can alter therapeutic responses in individuals
with Parkinson’s disease (PD). Possession of the variant Met allele
results in decreased activity-dependent release of BDNF. Given the resurgent
worldwide interest in neural transplantation for PD and the biological relevance
of BDNF, the current studies examined the effects of the rs6265 SNP on
therapeutic efficacy and side-effect development following primary dopamine (DA)
neuron transplantation. Considering the significant reduction in BDNF release
associated with rs6265, we hypothesized that rs6265-mediated dysfunctional BDNF
signaling contributes to the limited clinical benefit observed in a
subpopulation of PD patients despite robust survival of grafted DA neurons, and
further, that this mutation contributes to the development of aberrant
graft-induced dyskinesias (GID). To this end, we generated a CRISPR knock-in rat
model of the rs6265 BDNF SNP to examine for the first time the
influence of a common genetic polymorphism on graft survival, functional
efficacy, and side-effect liability, comparing these parameters between
wild-type (Val/Val) rats and those homozygous for the variant Met allele
(Met/Met). Counter to our hypothesis, the current research indicates that
Met/Met rats show enhanced graft-associated therapeutic efficacy and a
paradoxical enhancement of graft-derived neurite outgrowth compared to wild-type
rats. However, consistent with our hypothesis, we demonstrate that the rs6265
genotype in the host rat is strongly linked to development of GID, and that this
behavioral phenotype is significantly correlated with neurochemical signatures
of atypical glutamatergic neurotransmission by grafted DA neurons.
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Brain-derived neurotrophic factor Val66Met polymorphism affects cortical thickness of rostral anterior cingulate in patients with major depressive disorder. Neuroreport 2020; 31:1146-1153. [PMID: 32991522 DOI: 10.1097/wnr.0000000000001528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE The neuro-anatomical substrates of major depressive disorder (MDD) remain poorly understood. Brain-derived neurotrophic factor (BDNF) gene polymorphism (Val66Met/rs6265) is associated with neuro-plasticity and development. In the present study, we explore the influence of BDNF gene polymorphism on cortical thickness in nonelderly, first episode, drug-naive patients with MDD. METHODS Two hundred and sixteen participants (105 MDD patients and 111 healthy controls) were divided into subgroups based on the BDNF genotype. High-resolution MRI was obtained in all participants. A relationship of BDNF Val66Met gene polymorphism and cortical thickness was investigated. RESULTS The significant main effect of diagnosis was identified in the left rostal anterior cingulate (rACC), right inferior temporal and right lateral orbitofrontal (lOFC). The main effect of the genotype was observed in the left posterior cingulate cortex. The diagnosis-by-genotype interaction effect was found located in the left rACC. MDD patients who were Met-carriers exhibited thinner cortical thickness in the left rACC than healthy controls Met-carriers. Neither the symptom severity nor the illness duration was correlated significantly with cortical thickness. CONCLUSION Our findings suggested that the BDNF gene polymorphism was associated with cortical thickness alterations of the left rACC in MDD patients, and genotype that carries Met may serve as a vulnerability factor in MDD regarding the cortical thickness loss in the left rACC. This finding can be considered as a supportive evidence for the neurotrophic factor hypothesis of depression.
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Neurotrophic Factor BDNF, Physiological Functions and Therapeutic Potential in Depression, Neurodegeneration and Brain Cancer. Int J Mol Sci 2020; 21:ijms21207777. [PMID: 33096634 PMCID: PMC7589016 DOI: 10.3390/ijms21207777] [Citation(s) in RCA: 344] [Impact Index Per Article: 86.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 01/10/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is one of the most distributed and extensively studied neurotrophins in the mammalian brain. BDNF signals through the tropomycin receptor kinase B (TrkB) and the low affinity p75 neurotrophin receptor (p75NTR). BDNF plays an important role in proper growth, development, and plasticity of glutamatergic and GABAergic synapses and through modulation of neuronal differentiation, it influences serotonergic and dopaminergic neurotransmission. BDNF acts as paracrine and autocrine factor, on both pre-synaptic and post-synaptic target sites. It is crucial in the transformation of synaptic activity into long-term synaptic memories. BDNF is considered an instructive mediator of functional and structural plasticity in the central nervous system (CNS), influencing dendritic spines and, at least in the hippocampus, the adult neurogenesis. Changes in the rate of adult neurogenesis and in spine density can influence several forms of learning and memory and can contribute to depression-like behaviors. The possible roles of BDNF in neuronal plasticity highlighted in this review focus on the effect of antidepressant therapies on BDNF-mediated plasticity. Moreover, we will review data that illustrate the role of BDNF as a potent protective factor that is able to confer protection against neurodegeneration, in particular in Alzheimer’s disease. Finally, we will give evidence of how the involvement of BDNF in the pathogenesis of brain glioblastoma has emerged, thus opening new avenues for the treatment of this deadly cancer.
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Raucci FJ, Singh AP, Soslow J, Markham LW, Zhong L, Aljafar W, Lessiohadi N, Awgulewitsch CP, Umbarkar P, Zhang Q, Cannon PL, Buchowski M, Roland JT, Carrier EJ, Burnette WB, Hatzopoulos AK, Lal H, Galindo CL. The BDNF rs6265 Polymorphism is a Modifier of Cardiomyocyte Contractility and Dilated Cardiomyopathy. Int J Mol Sci 2020; 21:ijms21207466. [PMID: 33050457 PMCID: PMC7593910 DOI: 10.3390/ijms21207466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/25/2020] [Accepted: 10/08/2020] [Indexed: 12/22/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a neuronal growth and survival factor that harbors cardioprotective qualities that may attenuate dilated cardiomyopathy. In ~30% of the population, BDNF has a common, nonsynonymous single nucleotide polymorphism rs6265 (Val66Met), which might be correlated with increased risk of cardiovascular events. We previously showed that BDNF correlates with better cardiac function in Duchenne muscular dystrophy (DMD) patients. However, the effect of the Val66Met polymorphism on cardiac function has not been determined. The goal of the current study was to determine the effects of rs6265 on BDNF biomarker suitability and DMD cardiac functions more generally. We assessed cardiovascular and skeletal muscle function in human DMD patients segregated by polymorphic allele. We also compared echocardiographic, electrophysiologic, and cardiomyocyte contractility in C57/BL-6 wild-type mice with rs6265 polymorphism and in mdx/mTR (mDMD) mouse model of DMD. In human DMD patients, plasma BDNF levels had a positive correlation with left ventricular function, opposite to that seen in rs6265 carriers. There was also a substantial decrease in skeletal muscle function in carriers compared to the Val homozygotes. Surprisingly, the opposite was true when cardiac function of DMD carriers and non-carriers were compared. On the other hand, Val66Met wild-type mice had only subtle functional differences at baseline but significantly decreased cardiomyocyte contractility. Our results indicate that the Val66Met polymorphism alters myocyte contractility, conferring worse skeletal muscle function but better cardiac function in DMD patients. Moreover, these results suggest a mechanism for the relative preservation of cardiac tissues compared to skeletal muscle in DMD patients and underscores the complexity of BDNF signaling in response to mechanical workload.
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Affiliation(s)
- Frank J. Raucci
- Thomas P. Graham Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (F.J.R.J.); (J.S.)
- Division of Pediatric Cardiology, Department of Pediatrics, Children’s Hospital of Richmond at Virginia Commonwealth University, Richmond, VA 23219, USA
| | - Anand Prakash Singh
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama Birmingham School of Medicine, Birmingham, AL 35233, USA; (A.P.S.); (P.U.); (Q.Z.); (H.L.)
| | - Jonathan Soslow
- Thomas P. Graham Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (F.J.R.J.); (J.S.)
| | - Larry W. Markham
- Division of Cardiology, Department of Pediatrics, Riley Hospital for Children at Indiana University Health, Indianapolis, IN 46202, USA;
| | - Lin Zhong
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Wejdan Aljafar
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Natasja Lessiohadi
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Cassandra P. Awgulewitsch
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Prachi Umbarkar
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama Birmingham School of Medicine, Birmingham, AL 35233, USA; (A.P.S.); (P.U.); (Q.Z.); (H.L.)
| | - Qinkun Zhang
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama Birmingham School of Medicine, Birmingham, AL 35233, USA; (A.P.S.); (P.U.); (Q.Z.); (H.L.)
| | - Presley L. Cannon
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Maciej Buchowski
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
| | - Joseph T. Roland
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Erica J. Carrier
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - William B. Burnette
- Division of Pediatric Neurology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
| | - Antonis K. Hatzopoulos
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
| | - Hind Lal
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama Birmingham School of Medicine, Birmingham, AL 35233, USA; (A.P.S.); (P.U.); (Q.Z.); (H.L.)
| | - Cristi L. Galindo
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.Z.); (W.A.); (N.L.); (C.P.A.); (P.L.C.); (J.T.R.); (E.J.C.); (A.K.H.)
- Department of Biology, Western Kentucky University, Bowling Green, KY 42101, USA
- Correspondence: ; Tel.: +1-270-745-3696
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Notaras M, van den Buuse M. Neurobiology of BDNF in fear memory, sensitivity to stress, and stress-related disorders. Mol Psychiatry 2020; 25:2251-2274. [PMID: 31900428 DOI: 10.1038/s41380-019-0639-2] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 12/01/2019] [Accepted: 12/12/2019] [Indexed: 01/17/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) is widely accepted for its involvement in resilience and antidepressant drug action, is a common genetic locus of risk for mental illnesses, and remains one of the most prominently studied molecules within psychiatry. Stress, which arguably remains the "lowest common denominator" risk factor for several mental illnesses, targets BDNF in disease-implicated brain regions and circuits. Altered stress-related responses have also been observed in animal models of BDNF deficiency in vivo, and BDNF is a common downstream intermediary for environmental factors that potentiate anxiety- and depressive-like behavior. However, BDNF's broad functionality has manifested a heterogeneous literature; likely reflecting that BDNF plays a hitherto under-recognized multifactorial role as both a regulator and target of stress hormone signaling within the brain. The role of BDNF in vulnerability to stress and stress-related disorders, such as posttraumatic stress disorder (PTSD), is a prominent example where inconsistent effects have emerged across numerous models, labs, and disciplines. In the current review we provide a contemporary update on the neurobiology of BDNF including new data from the behavioral neuroscience and neuropsychiatry literature on fear memory consolidation and extinction, stress, and PTSD. First we present an overview of recent advances in knowledge on the role of BDNF within the fear circuitry, as well as address mounting evidence whereby stress hormones interact with endogenous BDNF-TrkB signaling to alter brain homeostasis. Glucocorticoid signaling also acutely recruits BDNF to enhance the expression of fear memory. We then include observations that the functional common BDNF Val66Met polymorphism modulates stress susceptibility as well as stress-related and stress-inducible neuropsychiatric endophenotypes in both man and mouse. We conclude by proposing a BDNF stress-sensitivity hypothesis, which posits that disruption of endogenous BDNF activity by common factors (such as the BDNF Val66Met variant) potentiates sensitivity to stress and, by extension, vulnerability to stress-inducible illnesses. Thus, BDNF may induce plasticity to deleteriously promote the encoding of fear and trauma but, conversely, also enable adaptive plasticity during extinction learning to suppress PTSD-like fear responses. Ergo regulators of BDNF availability, such as the Val66Met polymorphism, may orchestrate sensitivity to stress, trauma, and risk of stress-induced disorders such as PTSD. Given an increasing interest in personalized psychiatry and clinically complex cases, this model provides a framework from which to experimentally disentangle the causal actions of BDNF in stress responses, which likely interact to potentiate, produce, and impair treatment of, stress-related psychiatric disorders.
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Affiliation(s)
- Michael Notaras
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA.
| | - Maarten van den Buuse
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia. .,College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia. .,Department of Pharmacology, University of Melbourne, Melbourne, VIC, Australia.
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Brain-derived neurotrophic factor polymorphism Val66Met protects against cancer-related fatigue. Transl Psychiatry 2020; 10:302. [PMID: 32848137 PMCID: PMC7450091 DOI: 10.1038/s41398-020-00990-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 12/26/2022] Open
Abstract
Cancer-related fatigue is an extremely common and debilitating psychiatric symptom that affects up to 80% of cancer patients. Despite its negative impact on the patient's quality of life, there is no well-established biomarker or mechanisms associated with this debilitating condition. The functional brain-derived neurotrophic factor (BDNF) Val66Met single nucleotide polymorphism (SNP) has been associated with a variety of psychiatric illnesses. We hypothesized that Val66Met may influence the risk for developing cancer-related fatigue. BDNF Val66Met was analyzed by polymerase chain reaction in 180 patients with confirmed cancer diagnoses. Fatigue was measured using the Functional Assessment of Cancer Therapy-Fatigue (FACIT-Fatigue) questionnaire. Depression was measured using the Hamilton Depression Scale (HAM-D). Data were transformed when necessary and regression models were constructed to access the association between genotype and symptom severity. Participants carrying the Met allele reported significantly less fatigue compared to the Val/Val genotype group. The presence of the Met allele did not influence depression levels. The results suggest that the BDNF Val66Met polymorphism confers protective advantage against cancer-related fatigue; whereas having the Val/Val genotype may be a genetic risk factor. Findings from this study not only provide clues to the neural basis of cancer-related fatigue, but also allow for symptom severity prediction and patient education with the goal to improve symptom management.
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da Silveira Alves CF, Caumo W, Silvestri JM, Zortea M, Dos Santos VS, Cardoso DF, Regner A, de Souza AH, Simon D. Pain catastrophizing is associated with the Val66Met polymorphism of the brain-derived neurotrophic factor in fibromyalgia. Adv Rheumatol 2020; 60:39. [PMID: 32736598 DOI: 10.1186/s42358-020-00141-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/20/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Fibromyalgia (FM) is a musculoskeletal chronic pain syndrome that impacts negatively patient's daily lives. Its pathogenesis is characterized by a complex relationship between biological and psychosocial factors not fully understood yet. Pain catastrophizing is associated with FM and is an important predictor of outcomes. This study aimed to answer two questions: (i) whether the allele and genotype frequencies of BDNF Val66Met (rs6265) polymorphism differs between FM patients and healthy controls (HC); and (ii) if the BDNF Val66Met polymorphism is a factor that predicts pain catastrophizing in FM. METHODS In a cross-sectional design, 108 FM patients and 108 HC were included. FM patients responded to the Brazilian Portuguese version of the Pain Catastrophizing Scale (BP-PCS) to assess pain catastrophizing, as well as other validated tools for anxiety (The State-Trait Anxiety Inventory - STAI), depression (Beck Depression Inventory II - BDI-II) and functional aspects (Fibromyalgia Impact Questionnaire - FIQ; Central Sensitization Inventory validated and adapted for Brazilian population - CSI-BP; Pittsburgh Sleep Quality Index - PSQI; and Resilience Scale). All subjects were genotyped for the BDNF Val66Met polymorphism. RESULTS Val allele was significantly more frequent in FM patients compared to the control group (p < 0.05). Also, FM patients with Val/Val genotype showed more pain catastrophizing thoughts, and this genotype was significantly associated with magnification and rumination dimensions of BP-PCS (p < 0.05). Furthermore, there were significant differences in levels of anxiety and symptoms of depression, years of education, and the functional situation between the FM and control groups. CONCLUSIONS The findings show an association of BDNF Val66Met polymorphism with pain catastrophizing in FM, which opens new avenues to comprehend the interplay between molecular genetic characteristics and neuroplasticity mechanisms underpinning FM.
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Affiliation(s)
- Camila Fernanda da Silveira Alves
- Graduate Program in Cellular and Molecular Biology Applied to Health, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001 - Prédio 22 - 5° andar, Canoas, RS, 92425-900, Brazil.,Human Molecular Genetics Laboratory, Universidade Luterana do Brasil (ULBRA), Canoas, Brazil.,Laboratory of Pain and Neuromodulation at Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Graduate Program in Medical Sciences at Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Wolnei Caumo
- Laboratory of Pain and Neuromodulation at Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Graduate Program in Medical Sciences at Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Pain and Palliative Care Service, Hospital de Clínicas de Porto Alegre (HCPA); Department of Surgery, School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Joana Morez Silvestri
- Human Molecular Genetics Laboratory, Universidade Luterana do Brasil (ULBRA), Canoas, Brazil
| | - Maxciel Zortea
- Laboratory of Pain and Neuromodulation at Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Graduate Program in Medical Sciences at Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Vinicius Souza Dos Santos
- Laboratory of Pain and Neuromodulation at Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Graduate Program in Medical Sciences at Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Dayane Favarin Cardoso
- Human Molecular Genetics Laboratory, Universidade Luterana do Brasil (ULBRA), Canoas, Brazil
| | - Andrea Regner
- Graduate Program in Cellular and Molecular Biology Applied to Health, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001 - Prédio 22 - 5° andar, Canoas, RS, 92425-900, Brazil
| | - Alessandra Hübner de Souza
- Graduate Program in Cellular and Molecular Biology Applied to Health, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001 - Prédio 22 - 5° andar, Canoas, RS, 92425-900, Brazil
| | - Daniel Simon
- Graduate Program in Cellular and Molecular Biology Applied to Health, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001 - Prédio 22 - 5° andar, Canoas, RS, 92425-900, Brazil. .,Human Molecular Genetics Laboratory, Universidade Luterana do Brasil (ULBRA), Canoas, Brazil.
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Nassan M, Veldic M, Winham S, Frye MA, Larrabee B, Colby C, Biernacka J, Bellia F, Pucci M, Terenius L, Vukojevic V, D'Addario C. Methylation of Brain Derived Neurotrophic Factor (BDNF) Val66Met CpG site is associated with early onset bipolar disorder. J Affect Disord 2020; 267:96-102. [PMID: 32063579 DOI: 10.1016/j.jad.2020.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/21/2020] [Accepted: 02/01/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The brain-derived neurotrophic factor (BDNF) rs6265 (Val66Met) Met allele is associated with early onset (≤ 19 years old) bipolar disorder (BD). Val66Met (G196A) creates a CpG site when the Val/G allele is present. We sought to study the methylation of the BDNF promoter and its interaction with Val66Met genotype in BD. METHODS Sex/age-matched previously genotyped DNA samples from BD-Type 1 cases [N = 166: early onset (≤ 19 years old) n = 79, late onset (> 20 years old) n = 87] and controls (N = 162) were studied. Pyrosequencing of four CpGs in Promoter-I, four CpGs in promoter-IV, and two CpGs in Promoter-IX (CpG2 includes G= Val allele) was performed. Logistic regression adjusting for batch effect was used to compare cases vs. controls. Analyses also included stratification by disease onset and adjustment for Val66Met genotype. Secondary exploratory analyses for the association of life stressors, comorbid substance abuse, and psychotropic use with methylation patterns were performed. RESULTS Comparing all BD cases vs. controls and adjusting for Val66Met genotype, BD cases had significantly higher methylation in promoter -IX/CPG-2 (p = 0.0074). This was driven by early onset cases vs. controls (p = 0.00039) and not late onset cases vs. controls (p = 0.2). LIMITATION Relatively small sample size. CONCLUSION Early onset BD is associated with increased methylation of CpG site created by Val=G allele of the Val66Met variance. Further studies could include larger sample size and postmortem brain samples in an attempt to replicate these findings.
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Affiliation(s)
- Malik Nassan
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | - Marin Veldic
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | - Stacey Winham
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | - Mark A Frye
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | - Beth Larrabee
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | - Colin Colby
- Mayo Clinic, Psychiatry & Psychology, Rochester, MN, USA
| | | | | | | | - Lars Terenius
- Karolinska Institute, Clinical Neuroscience, Solna, Sweden
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The BDNF Val66Met Polymorphism Modulates Resilience of Neurological Functioning to Brain Ageing and Dementia: A Narrative Review. Brain Sci 2020; 10:brainsci10040195. [PMID: 32218234 PMCID: PMC7226504 DOI: 10.3390/brainsci10040195] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/19/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023] Open
Abstract
Brain-derived neurotropic factor (BDNF) is an abundant and multi-function neurotrophin in the brain. It is released following neuronal activity and is believed to be particularly important in strengthening neural networks. A common variation in the BDNF gene, a valine to methionine substitution at codon 66 (Val66Met), has been linked to differential expression of BDNF associated with experience-dependent plasticity. The Met allele has been associated with reduced production of BDNF following neuronal stimulation, which suggests a potential role of this variation with respect to how the nervous system may respond to challenges, such as brain ageing and related neurodegenerative conditions (e.g., dementia and Alzheimer’s disease). The current review examines the potential of the BDNF Val66Met variation to modulate an individual’s susceptibility and trajectory through cognitive changes associated with ageing and dementia. On balance, research to date indicates that the BDNF Met allele at this codon is potentially associated with a detrimental influence on the level of cognitive functioning in older adults and may also impart increased risk of progression to dementia. Furthermore, recent studies also show that this genetic variation may modulate an individual’s response to interventions targeted at building cognitive resilience to conditions that cause dementia.
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Ghosh M, Ali A, Joshi S, Srivastava AS, Tapadia MG. SLC1A3 C3590T but not BDNF G196A is a predisposition factor for stress as well as depression, in an adolescent eastern Indian population. BMC MEDICAL GENETICS 2020; 21:53. [PMID: 32171272 PMCID: PMC7071583 DOI: 10.1186/s12881-020-0993-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 03/04/2020] [Indexed: 01/19/2023]
Abstract
Background Adolescence is a distinctive stage of various changes and is noted as peak age for onset of many psychiatric disorders, especially linked to stress and depression. Several genetic variations are being increasingly known to be linked with stress and depression. The polymorphisms in two such genes, the BDNF and SLC1A3, have been reported to be linked with either depression/stress or with suicidal behaviour. These genes have not been validated in Indian population, and therefore there is a need to investigate these genes in Indian population. The present study was undertaken to test whether the known polymorphisms SLC1A3 C3590T, SLC1A3 C869G and BDNF G196A are associated or not with stress or depression in an eastern Indian population. Methods A case-control association study was performed with 108 cases having variable levels of stress and depression and 205 matched controls. Detection of stress and depression was done by using standard instruments as PSS and CES-D, respectively and demographic profile was obtained for each individual on the basis of personal data sheet. Genotyping for the selected polymorphisms was performed by PCR followed by restriction digestion. Results The SNP SLC1A3 C3590T was found to be associated with stress and depression (p = 0.0042, OR = 2.072). Therefore, the T allele increases the risk by more than two folds for stress and depression in the present population. The other allele of SLC1A3, G869C, as well as BDNF G196A were not associated with stress or depression in the population studied. Conclusion SLC1A3 C3590T is a predisposition factor for stress and depression in an eastern Indian population, whereas SLC1A3 G869C and BDNF G196A were not found to be a risk factor. Therefore, presence of T allele of SLC1A3 C3590T, may predict the development of stress and depression in an individual. This may also help in the understanding of pathophysiology of the disease. However, these findings warrant a wider study in Indian populations and would be of significance in understanding the predisposition of stress and depression in this population.
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Affiliation(s)
- Madhumita Ghosh
- Cytogenetics Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, 221005, India
| | - Akhtar Ali
- Centre for Genetic Disorders, Faculty of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Shobhna Joshi
- Department of Psychology, Faculty of Arts, Banaras Hindu University, Varanasi, 221005, India
| | - Adya Shankar Srivastava
- Department of Psychiatry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Madhu G Tapadia
- Cytogenetics Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, 221005, India.
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Halonen R, Kuula L, Lahti J, Makkonen T, Räikkönen K, Pesonen AK. BDNF Val66Met polymorphism moderates the association between sleep spindles and overnight visual recognition. Behav Brain Res 2019; 375:112157. [DOI: 10.1016/j.bbr.2019.112157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/16/2019] [Accepted: 08/17/2019] [Indexed: 10/26/2022]
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Kristinsson S, Yourganov G, Xiao F, Bonilha L, Stark BC, Rorden C, Basilakos A, Fridriksson J. Brain-Derived Neurotrophic Factor Genotype-Specific Differences in Cortical Activation in Chronic Aphasia. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2019; 62:3923-3936. [PMID: 31756156 PMCID: PMC7203521 DOI: 10.1044/2019_jslhr-l-rsnp-19-0021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 06/02/2019] [Accepted: 07/29/2019] [Indexed: 05/04/2023]
Abstract
Purpose The brain-derived neurotrophic factor (BDNF) gene has been shown to be important for synaptic plasticity in animal models. Human research has suggested that BDNF genotype may influence stroke recovery. Some studies have suggested a genotype-specific motor-related brain activation in stroke recovery. However, recovery from aphasia in relation to BDNF genotype and language-related brain activation has received limited attention. We aimed to explore functional brain activation by BDNF genotype in individuals with chronic aphasia. Consistent with findings in healthy individuals and individuals with poststroke motor impairment, we hypothesized that, among individuals with aphasia, the presence of the Met allele of the BDNF gene is associated with reduced functional brain activation compared to noncarriers of the Met allele. Method Eighty-seven individuals with chronic stroke-induced aphasia performed a naming task during functional magnetic resonance imaging scanning and submitted blood or saliva samples for BDNF genotyping. The mean number of activated voxels was compared between groups, and group-based activation maps were directly compared. Neuropsychological testing was conducted to compare language impairment between BDNF genotype groups. The Western Aphasia Battery Aphasia Quotient (Kertesz, 2007) was included as a covariate in all analyses. Results While lesion size was comparable between groups, the amount of activation, quantified as the number of activated voxels, was significantly greater in noncarriers of the Met allele (whole brain: 98,500 vs. 28,630, p < .001; left hemisphere only: 37,209 vs. 7,000, p < .001; right hemisphere only: 74,830 vs. 30,630, p < .001). This difference was most strongly expressed in the right hemisphere posterior temporal area, pre- and postcentral gyrus, and frontal lobe, extending into the white matter. Correspondingly, the atypical BDNF genotype group was found to have significantly less severe aphasia (Western Aphasia Battery Aphasia Quotient of 64.2 vs. 54.3, p = .033) and performed better on a naming task (Philadelphia Naming Test [Roach, Schwartz, Martin, Grewal, & Brecher, 1996] score of 74.7 vs. 52.8, p = .047). A region of interest analysis of intensity of activation revealed no group differences, and a direct comparison of average activation maps across groups similarly yielded null results. Conclusion BDNF genotype mediates cortical brain activation in individuals with chronic aphasia. Correspondingly, individuals carrying the Met allele present with more severe aphasia compared to noncarriers. These findings warrant further study into the effects of BDNF genotype in aphasia. Supplemental Material https://doi.org/10.23641/asha.10073147 Presentation Video https://doi.org/10.23641/asha.10257581.
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Affiliation(s)
- Sigfus Kristinsson
- Department of Communication Sciences & Disorders, University of South Carolina, Columbia
| | | | - Feifei Xiao
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia
| | - Leonardo Bonilha
- Department of Neurology, Medical University of South Carolina, Charleston
| | - Brielle C. Stark
- Department of Speech and Hearing Sciences, Indiana University, Bloomington
| | - Chris Rorden
- Department of Psychology, University of South Carolina, Columbia
| | - Alexandra Basilakos
- Department of Communication Sciences & Disorders, University of South Carolina, Columbia
| | - Julius Fridriksson
- Department of Communication Sciences & Disorders, University of South Carolina, Columbia
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Al-Hatamleh MA, Hussin TM, Taib WR, Ismail I. The Brain-Derived Neurotrophic Factor (BDNF) gene Val66Met (rs6265) polymorphism and stress among preclinical medical students in Malaysia. J Taibah Univ Med Sci 2019; 14:431-438. [PMID: 31728141 PMCID: PMC6838909 DOI: 10.1016/j.jtumed.2019.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 09/10/2019] [Accepted: 09/15/2019] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE This study aimed to determine the allelic and genotypic association of the Val66Met (rs6265) polymorphism in the BDNF gene with stress levels in preclinical medical students of Universiti Sultan Zainal Abidin (UniSZA), Terengganu, Malaysia. METHODS In this cross-sectional study, we recruited all 122 preclinical medical students. The validated depression anxiety stress scales-21 (DASS-21) questionnaire was distributed and blood samples were collected from each subject for DNA extraction. Genotyping analysis of the BDNF gene (Val66Met) polymorphism was performed via an optimised polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. RESULTS A total of 105 subjects agreed to participate in this study. Indian students were found to more likely have the Val/Val genotype, whereas Malay students were more likely to have the Met/Met genotype (p = 0.027). Individuals carrying any one of the three BDNF genotypes (Val/Val, Val/Met and Met/Met) differed significantly from each other in terms of their perception of stress (p = 0.010); students carrying the Val/Val genotype (M = 10.6) perceived significantly lower stress than students carrying the Val/Met (M = 14) and Met/Met (M = 15.1) genotypes. CONCLUSION In our study, the Met-allele was associated with higher stress levels. To the best of our knowledge, this is the first study investigating this stress-related gene in medical students. The findings from this study should trigger more investigators to focus on the impact of stress on genetically predisposed medical students.
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Affiliation(s)
- Mohammad A.I. Al-Hatamleh
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Jalan Sultan Mahmud, Kuala Terengganu, Terengganu, Malaysia
| | - Tengku M.A.R. Hussin
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Jalan Sultan Mahmud, Kuala Terengganu, Terengganu, Malaysia
| | - Wan R.W. Taib
- School of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Kuala Nerus, Malaysia
| | - Imilia Ismail
- School of Biomedicine, Faculty of Health Sciences, Universiti Sultan Zainal Abidin, Kuala Nerus, Malaysia
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Finan JD, Udani SV, Patel V, Bailes JE. The Influence of the Val66Met Polymorphism of Brain-Derived Neurotrophic Factor on Neurological Function after Traumatic Brain Injury. J Alzheimers Dis 2019; 65:1055-1064. [PMID: 30149456 DOI: 10.3233/jad-180585] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Functional outcomes after traumatic brain injury (TBI) vary widely across patients with apparently similar injuries. This variability hinders prognosis, therapy, and clinical innovation. Recently, single nucleotide polymorphism (SNPs) that influence outcome after TBI have been identified. These discoveries create opportunities to personalize therapy and stratify clinical trials. Both of these changes would propel clinical innovation in the field. This review focuses on one of most well-characterized of these SNPs, the Val66Met SNP in the brain-derived neurotrophic factor (BDNF) gene. This SNP influences neurological function in healthy subjects as well as TBI patients and patients with similar acute insults to the central nervous system. A host of other patient-specific factors including ethnicity, age, gender, injury severity, and post-injury time point modulate this influence. These interactions confound efforts to define a simple relationship between this SNP and TBI outcomes. The opportunities and challenges associated with personalizing TBI therapy around this SNP and other similar SNPs are discussed in light of these results.
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Affiliation(s)
- John D Finan
- Department of Neurosurgery, NorthShore University Health System, Evanston, IL, USA
| | - Shreya V Udani
- Department of Neurosurgery, NorthShore University Health System, Evanston, IL, USA
| | - Vimal Patel
- Department of Neurosurgery, NorthShore University Health System, Evanston, IL, USA
| | - Julian E Bailes
- Department of Neurosurgery, NorthShore University Health System, Evanston, IL, USA
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Wheeler AL, Felsky D, Viviano JD, Stojanovski S, Ameis SH, Szatmari P, Lerch JP, Chakravarty MM, Voineskos AN. BDNF-Dependent Effects on Amygdala-Cortical Circuitry and Depression Risk in Children and Youth. Cereb Cortex 2019; 28:1760-1770. [PMID: 28387866 DOI: 10.1093/cercor/bhx086] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 03/24/2017] [Indexed: 01/03/2023] Open
Abstract
The brain-derived neurotrophic factor (BDNF) is critical for brain development, and the functional BDNF Val66Met polymorphism is implicated in risk for mood disorders. The objective of this study was to determine how the Val66Met polymorphism influences amygdala-cortical connectivity during neurodevelopment and assess the relevance for mood disorders. Age- and sex-specific effects of the BDNF Val66Met polymorphism on amygdala-cortical connectivity were assessed by examining covariance of amygdala volumes with thickness throughout the cortex in a sample of Caucasian youths ages 8-22 that were part of the Philadelphia Neurodevelopmental Cohort (n = 339). Follow-up analyses assessed corresponding BDNF genotype effects on resting-state functional connectivity (n = 186) and the association between BDNF genotype and major depressive disorder (MDD) (n = 2749). In adolescents, amygdala-cortical covariance was significantly stronger in Met allele carriers compared with Val/Val homozygotes in amygdala-cortical networks implicated in depression; these differences were driven by females. In follow-up analyses, the Met allele was also associated with stronger resting-state functional connectivity in adolescents and increased likelihood of MDD in adolescent females. The BDNF Val66Met polymorphism may confer risk for mood disorders in females through effects on amygdala-cortical connectivity during adolescence, coinciding with a period in the lifespan when onset of depression often occurs, more commonly in females.
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Affiliation(s)
- Anne L Wheeler
- Research Imaging Centre, Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada M5T 1R8.,Program in Neuroscience and Mental Health, Hospital for Sick Children, Toronto, Ontario, Canada M5G 0A4
| | - Daniel Felsky
- Research Imaging Centre, Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada M5T 1R8
| | - Joseph D Viviano
- Research Imaging Centre, Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8
| | - Sonja Stojanovski
- Program in Neuroscience and Mental Health, Hospital for Sick Children, Toronto, Ontario, Canada M5G 0A4
| | - Stephanie H Ameis
- Research Imaging Centre, Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada M5T 1R8.,Program in Neuroscience and Mental Health, Hospital for Sick Children, Toronto, Ontario, Canada M5G 0A4.,Child Youth and Emerging Adult Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8
| | - Peter Szatmari
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada M5T 1R8.,Program in Neuroscience and Mental Health, Hospital for Sick Children, Toronto, Ontario, Canada M5G 0A4.,Child Youth and Emerging Adult Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8
| | - Jason P Lerch
- Program in Neuroscience and Mental Health, Hospital for Sick Children, Toronto, Ontario, Canada M5G 0A4.,Medical Biophysics, University of Toronto, Toronto, Ontario, Canada M5G 1L7
| | - M Mallar Chakravarty
- Cerebral Imaging Centre, Douglas Institute, Montreal, Quebec, Canada H4H 1R3.,Department of Biomedical Engineering, McGill University, 3775 rue University Montreal, Quebec, Canada H3A 2B4
| | - Aristotle N Voineskos
- Research Imaging Centre, Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada M5T 1R8.,Child Youth and Emerging Adult Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada M5T 1R8
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Antisuicidal effect, BDNF Val66Met polymorphism, and low-dose ketamine infusion: Reanalysis of adjunctive ketamine study of Taiwanese patients with treatment-resistant depression (AKSTP-TRD). J Affect Disord 2019; 251:162-169. [PMID: 30925267 DOI: 10.1016/j.jad.2019.03.075] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 03/19/2019] [Accepted: 03/21/2019] [Indexed: 01/12/2023]
Abstract
BACKGROUND Growing evidence suggests a rapid antisuicidal effect of low-dose ketamine infusion in Caucasian patients with treatment-resistant depression (TRD). However, the antisuicidal effects of ketamine on Taiwanese patients with TRD remains unknown. METHODS Seventy-one patients with TRD were randomly classified into three treatment groups: 0.5 mg/kg ketamine, 0.2 mg/kg ketamine, or normal saline (placebo) infusion. The Hamilton Depression Rating Scale (HAMD) and Montgomery-Åsberg Depression Rating Scale (MADRS) were applied prior to initiation of test infusions, at 40, 80, 120, and 240 min postinfusion, and sequentially on Days 2, 3, 4, 5, 6, 7, and 14 after ketamine or placebo infusion. Item 3 (suicide) of the HAMD and item 10 (suicidal thoughts) of the MADRS were extracted for generalized estimating equation (GEE) model analyses to investigate the antisuicidal effects of ketamine infusion. Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism was genotyped. RESULTS The GEE model revealed significant group (p = 0.007) and time (p = 0.004) effects on suicidal symptoms over times (prior to infusion to day 14 postinfusion). The group that received 0.5 mg/kg ketamine infusion exhibited a significantly lower score in item 3 of the HAMD and item 10 of the MADRS compared with the groups that received 0.2 mg/kg ketamine or placebo infusion. Among those carrying any Val allele of BDNF, both 0.5 and 0.2 mg/kg ketamine infusions were effective in reducing suicidal thoughts; however, among those with Met/Met of BDNF, only 0.5 mg/kg ketamine infusion was effective in reducing suicidal thoughts. DISCUSSION A single low-dose ketamine infusion was effective in reducing suicidal ideation among Taiwanese patients with TRD. BDNF Val66Met polymorphism may play a crucial role in the antisuicidal effects of ketamine infusion.
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McKay NS, Moreau D, Henare DT, Kirk IJ. The brain-derived neurotrophic factor Val66Met genotype does not influence the grey or white matter structures underlying recognition memory. Neuroimage 2019; 197:1-12. [PMID: 30954706 DOI: 10.1016/j.neuroimage.2019.03.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/01/2019] [Accepted: 03/30/2019] [Indexed: 10/27/2022] Open
Abstract
A single nucleotide polymorphism (SNP) in the gene coding for brain-derived neurotrophic factor (BDNF) has previously been associated with a reduction in recognition memory performance. While previous findings have highlighted that this SNP contributes to recognition memory, little is known about its influence on subprocesses of recognition, familiarity and recollection. Previous research has reported reduced hippocampal volume and decreased fractional anisotropy in carriers of the Met allele across a range of white matter tracts, including those networks that may support recognition memory. Here, in a sample of 61 healthy young adults, we used a source memory task to measure accuracy on each recognition subprocess, in order to determine whether the Val66Met SNP (rs6265) influences these equally. Additionally, we compared grey matter volume between these groups for structures that underpin familiarity and recollection separately. Finally, we used probabilistic tractography to reconstruct tracts that subserve each of these two recognition systems. Behaviourally, we found group differences on the familiarity measure, but not on recollection. However, we did not find any group difference on grey- or white-matter structures. Together, these results suggest a functional influence of the Val66Met SNP that is independent of coarse structural changes, and nuance previous research highlighting the relationship between BDNF, brain structure, and behaviour.
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Affiliation(s)
- Nicole S McKay
- School of Psychology, University of Auckland, New Zealand.
| | - David Moreau
- School of Psychology, University of Auckland, New Zealand
| | - Dion T Henare
- School of Psychology, University of Auckland, New Zealand
| | - Ian J Kirk
- School of Psychology, University of Auckland, New Zealand; Brain Research New Zealand, New Zealand
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Lauriola M, Mangiacotti A, D'Onofrio G, Cascavilla L, Paris F, Ciccone F, Greco M, Paroni G, Seripa D, Greco A. Late-Life Depression versus Amnestic Mild Cognitive Impairment: Alzheimer's Disease Incidence in 4 Years of Follow-Up. Dement Geriatr Cogn Disord 2019; 46:140-153. [PMID: 30199883 DOI: 10.1159/000492489] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 07/26/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIM The aim of the study was to evaluate the prognostic power of late-life depression (LLD) compared with amnestic mild cognitive impairment (aMCI) for the onset of Alzheimer's disease (AD) within 4 years of follow-up. METHODS We estimated the incidence of AD in 60 patients presenting with aMCI, 115 patients suffering of LLD treated with antidepressants with good compliance, and 66 healthy control (HC) patients, followed for 4 years. RESULTS The risk to develop AD, within 4 years, was 68.33% for aMCI and 49.57% for LLD. In AD patients 5.60% deteriorated without depression, and 72.20% deteriorated with depression after 4 years of follow-up (p < 0.0001). No HC patients deteriorated to AD or any other dementia type. CONCLUSION In our results, aMCI was the first predictive condition that increased the risk to develop AD. Depression is a potentially preventable medical condition across the lifespan and may be a modifiable risk factor.
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Affiliation(s)
- Michele Lauriola
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Antonio Mangiacotti
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Grazia D'Onofrio
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo,
| | - Leandro Cascavilla
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Francesco Paris
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Filomena Ciccone
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Monica Greco
- Clinical Unit of Internal Medicine, IRCCS Azienda Ospedaliera Universitaria San Martino, Genova, Italy
| | - Giulia Paroni
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Davide Seripa
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Antonio Greco
- Complex Unit of Geriatrics, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
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Mandolini GM, Lazzaretti M, Pigoni A, Delvecchio G, Soares JC, Brambilla P. The impact of BDNF Val66Met polymorphism on cognition in Bipolar Disorder: A review: Special Section on "Translational and Neuroscience Studies in Affective Disorders" Section Editor, Maria Nobile MD, PhD. This Section of JAD focuses on the relevance of translational and neuroscience studies in providing a better understanding of the neural basis of affective disorders. The main aim is to briefly summaries relevant research findings in clinical neuroscience with particular regards to specific innovative topics in mood and anxiety disorders. J Affect Disord 2019; 243:552-558. [PMID: 30078664 DOI: 10.1016/j.jad.2018.07.054] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Converging lines of evidence suggest that Brain-Derived Neurotrophic Factor (BDNF) may play a central role in the pathogenesis of Bipolar Disorder (BD), thus representing a valid biomarker of the disease. A common genetic variation in the BDNF gene, the Val66Met, is associated with reduced maturation and secretion of BDNF and therefore it has been related to specific mood, cognitive and neuroanatomical alterations in BD. However, so far, only a handful of studies have investigated the association between Val66Met polymorphism and cognitive functioning in BD. METHODS We performed a bibliographic search on PUBMED of all genetic studies investigating Val66Met modulation on cognitive performances in BD subjects. The inclusion criteria were met by nine studies, including a total amount of 897 BD subjects and 803 healthy controls. RESULTS From the analysis of the existing literature emerged that a) Val allele in BD adults, but not in BD adolescents, was associated with better performances in selective cognitive domains including executive functions, verbal learning and memory; b) Met allele may negatively modulate the association between childhood trauma and performances in memory, verbal ability and verbal fluency tasks; c) Met allele may also negatively regulate structural abnormalities in cognitive cerebral structures; d) Val/Met carriers showed greater improvements in cognitive functions compared to Val/Val and Met/Met carriers. LIMITATIONS Few genetic studies exploring the impact of Val66Met on cognition in BD. CONCLUSIONS Val66Met polymorphism likely modulates cognitive functions in BD patients with complex gene-environment interactions and through potential modulations of cerebral structures. Further and larger genetic studies are required in order to detect association between BDNF polymorphism, BDNF levels, brain abnormalities and cognition in BD.
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Affiliation(s)
- G M Mandolini
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy.
| | - M Lazzaretti
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - A Pigoni
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - G Delvecchio
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - J C Soares
- Department of Psychiatry and Behavioural Neurosciences, University of Texas, Houston, TX, USA
| | - P Brambilla
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Scientific Institute IRCCS "E. Medea", Bosisio Parini (Lc), Italy.
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Pharmacogenetic Correlates of Antipsychotic-Induced Weight Gain in the Chinese Population. Neurosci Bull 2019; 35:561-580. [PMID: 30607769 DOI: 10.1007/s12264-018-0323-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 09/15/2018] [Indexed: 12/11/2022] Open
Abstract
Antipsychotic-induced weight gain (AIWG) is a common adverse effect of this treatment, particularly with second-generation antipsychotics, and it is a major health problem around the world. We aimed to review the progress of pharmacogenetic studies on AIWG in the Chinese population to compare the results for Chinese with other ethnic populations, identify the limitations and problems of current studies, and provide future research directions in China. Both English and Chinese electronic databases were searched to identify eligible studies. We determined that > 25 single-nucleotide polymorphisms in 19 genes have been investigated in association with AIWG in Chinese patients over the past few decades. HTR2C rs3813929 is the most frequently studied single-nucleotide polymorphism, and it seems to be the most strongly associated with AIWG in the Chinese population. However, many genes that have been reported to be associated with AIWG in other ethnic populations have not been included in Chinese studies. To explain the pharmacogenetic reasons for AIWG in the Chinese population, genome-wide association studies and multiple-center, standard, unified, and large samples are needed.
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Hill T, Polk JD. BDNF, endurance activity, and mechanisms underlying the evolution of hominin brains. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2018; 168 Suppl 67:47-62. [PMID: 30575024 DOI: 10.1002/ajpa.23762] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 10/21/2018] [Accepted: 11/05/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVES As a complex, polygenic trait, brain size has likely been influenced by a range of direct and indirect selection pressures for both cognitive and non-cognitive functions and capabilities. It has been hypothesized that hominin brain expansion was, in part, a correlated response to selection acting on aerobic capacity (Raichlen & Polk, 2013). According to this hypothesis, selection for aerobic capacity increased the activity of various signaling molecules, including those involved in brain growth. One key molecule is brain-derived neurotrophic factor (BDNF), a protein that regulates neuronal development, survival, and plasticity in mammals. This review updates, partially tests, and expands Raichlen and Polk's (2013) hypothesis by evaluating evidence for BDNF as a mediator of brain size. DISCUSSION We contend that selection for endurance capabilities in a hot climate favored changes to muscle composition, mitochondrial dynamics and increased energy budget through pathways involving regulation of PGC-1α and MEF2 genes, both of which promote BDNF activity. In addition, the evolution of hairlessness and the skin's thermoregulatory response provide other molecular pathways that promote both BDNF activity and neurotransmitter synthesis. We discuss how these pathways contributed to the evolution of brain size and function in human evolution and propose avenues for future research. Our results support Raichlen and Polk's contention that selection for non-cognitive functions has direct mechanistic linkages to the evolution of brain size in hominins.
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Affiliation(s)
- Tyler Hill
- Department of Anthropology, University of Illinois Urbana-Champaign, Urbana, Illinois
| | - John D Polk
- Department of Anthropology, University of Illinois Urbana-Champaign, Urbana, Illinois.,Department of Biomedical and Translational Sciences, Carle-Illinois College of Medicine, Urbana, Illinois
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76
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Hassan TM, Yarube IU. Peripheral brain-derived neurotrophic factor is reduced in stroke survivors with cognitive impairment. PATHOPHYSIOLOGY 2018; 25:405-410. [DOI: 10.1016/j.pathophys.2018.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 07/09/2018] [Accepted: 08/10/2018] [Indexed: 11/25/2022] Open
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77
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Low I, Kuo PC, Tsai CL, Liu YH, Lin MW, Chao HT, Chen YS, Hsieh JC, Chen LF. Interactions of BDNF Val66Met Polymorphism and Menstrual Pain on Brain Complexity. Front Neurosci 2018; 12:826. [PMID: 30524221 PMCID: PMC6256283 DOI: 10.3389/fnins.2018.00826] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 10/23/2018] [Indexed: 12/28/2022] Open
Abstract
The irregularity and uncertainty of neurophysiologic signals across different time scales can be regarded as neural complexity, which is related to the adaptability of the nervous system and the information processing between neurons. We recently reported general loss of brain complexity, as measured by multiscale sample entropy (MSE), at pain-related regions in females with primary dysmenorrhea (PDM). However, it is unclear whether this loss of brain complexity is associated with inter-subject genetic variations. Brain-derived neurotrophic factor (BDNF) is a widely expressed neurotrophin in the brain and is crucial to neural plasticity. The BDNF Val66Met single-nucleotide polymorphism (SNP) is associated with mood, stress, and pain conditions. Therefore, we aimed to examine the interactions of BDNF Val66Met polymorphism and long-term menstrual pain experience on brain complexity. We genotyped BDNF Val66Met SNP in 80 PDM females (20 Val/Val, 31 Val/Met, 29 Met/Met) and 76 healthy female controls (25 Val/Val, 36 Val/Met, 15 Met/Met). MSE analysis was applied to neural source activity estimated from resting-state magnetoencephalography (MEG) signals during pain-free state. We found that brain complexity alterations were associated with the interactions of BDNF Val66Met polymorphism and menstrual pain experience. In healthy female controls, Met carriers (Val/Met and Met/Met) demonstrated lower brain complexity than Val/Val homozygotes in extensive brain regions, suggesting a possible protective role of Val/Val homozygosity in brain complexity. However, after experiencing long-term menstrual pain, the complexity differences between different genotypes in healthy controls were greatly diminished in PDM females, especially in the limbic system, including the hippocampus and amygdala. Our results suggest that pain experience preponderantly affects the effect of BDNF Val66Met polymorphism on brain complexity. The results of the present study also highlight the potential utilization of resting-state brain complexity for the development of new therapeutic strategies in patients with chronic pain.
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Affiliation(s)
- Intan Low
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.,Integrated Brain Research Unit, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Po-Chih Kuo
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Cheng-Lin Tsai
- Institute of Biomedical Informatics, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Hsiang Liu
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Wei Lin
- Institute of Public Health, National Yang-Ming University, Taipei, Taiwan
| | - Hsiang-Tai Chao
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yong-Sheng Chen
- Department of Computer Science, National Chiao Tung University, Hsinchu, Taiwan.,Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, Taiwan
| | - Jen-Chuen Hsieh
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.,Integrated Brain Research Unit, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Brain Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Li-Fen Chen
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.,Integrated Brain Research Unit, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Biomedical Informatics, National Yang-Ming University, Taipei, Taiwan.,Brain Research Center, National Yang-Ming University, Taipei, Taiwan
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78
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Barha CK, Liu-Ambrose T, Best JR, Yaffe K, Rosano C. Sex-dependent effect of the BDNF Val66Met polymorphism on executive functioning and processing speed in older adults: evidence from the health ABC study. Neurobiol Aging 2018; 74:161-170. [PMID: 30448615 DOI: 10.1016/j.neurobiolaging.2018.10.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 02/07/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism may be an important source of heterogeneity seen in cognitive aging, although the specific relationship between this polymorphism and cognition remains controversial and may depend on the sex of participants. We assessed 2668 older black and white adults and fit linear mixed models to digit symbol substitution test (DSST) performance assessed in years 0 (baseline), 4, 7, and 9 to examine the interaction between sex and BDNF genotype on the intercept (i.e., estimated baseline DSST) and change in DSST over 9 years, adjusted for covariates. Sex interacted with BDNF genotype to predict DSST intercept (F[1,1599] = 7.4, p < 0.01) and 9-year change (F[1,1183] = 4.1, p = 0.04) in white participants only. Initially, white male Val/Val carriers had lower DSST scores (37.6, SE = 0.8) in comparison with male Met carriers (difference, -1.7; 95% CI, -3.2 to -0.3) and female Val/Val carriers (difference, -5.6; 95% CI, -6.8 to -4.3). White female Met carriers showed a slower rate of change (annual rate of change = -0.6, SE = 0.1) in comparison with female Val/Val carriers (difference, -0.2; 95% CI, -0.4 to -0.02) and male Met carriers (difference, -0.3; 95% CI, -0.5 to -0.02). Our findings suggest that BDNF Val66Met and sex should be considered in future endeavors aimed at treating or preventing neurodegenerative disorders.
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Affiliation(s)
- Cindy K Barha
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada; Department of Physical Therapy, University of British Columbia, Vancouver, Canada.
| | - Teresa Liu-Ambrose
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada; Department of Physical Therapy, University of British Columbia, Vancouver, Canada; Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, Vancouver, Canada
| | - John R Best
- Djavad Mowafaghian Centre for Brain Health, Vancouver Coastal Health Research Institute, Vancouver, Canada; Department of Physical Therapy, University of British Columbia, Vancouver, Canada
| | - Kristine Yaffe
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA; Departments of Psychiatry and Neurology, University of California, San Francisco, USA
| | - Caterina Rosano
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, USA
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79
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Dinoff A, Herrmann N, Swardfager W, Gallagher D, Lanctôt KL. The effect of exercise on resting concentrations of peripheral brain-derived neurotrophic factor (BDNF) in major depressive disorder: A meta-analysis. J Psychiatr Res 2018; 105:123-131. [PMID: 30219561 DOI: 10.1016/j.jpsychires.2018.08.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/09/2018] [Accepted: 08/30/2018] [Indexed: 12/18/2022]
Abstract
Exercise interventions have been shown to successfully improve depression in patients with major depressive disorder (MDD), but like other forms of antidepressant treatment, exercise is not effective in all patients and its mechanisms of action have not been fully elucidated. Brain-derived neurotrophic factor (BDNF), a key mediator of neurogenesis and neuronal survival, has been shown to be decreased in individuals with MDD. One potential mechanism by which exercise alleviates depression is through an increase in BDNF. In order to evaluate this hypothesis, we conducted a meta-analysis of studies that assessed the effects of a chronic (multi-week) exercise intervention on BDNF concentrations in MDD patients. MEDLINE, Embase, PsycINFO, SPORTDiscus, Rehabilitation & Sports Medicine Source, and CINAHL databases were searched for original, peer-reviewed reports of peripheral blood BDNF concentrations before and after a chronic exercise intervention in MDD patients. Standardized mean differences (SMDs) were generated from random effects models. Potential sources of heterogeneity were explored in meta-regression analyses. In six studies that met inclusion criteria, resting blood concentrations of BDNF were not significantly higher after a chronic exercise intervention (SMD = 0.43, 95% CI: -0.06-0.92, p = 0.09) in MDD patients. This meta-analysis did not find evidence that a chronic aerobic exercise intervention increases resting concentrations of BDNF in the blood of MDD patients; however, there is a lack of studies in this area making it difficult to reach a definitive conclusion. Future studies on this topic with larger sample sizes and longer durations are needed to draw more robust conclusions.
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Affiliation(s)
- Adam Dinoff
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada
| | - Nathan Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, 250 College Street, Toronto, Ontario, M5T 1R8, Canada.
| | - Walter Swardfager
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - Damien Gallagher
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, 250 College Street, Toronto, Ontario, M5T 1R8, Canada
| | - Krista L Lanctôt
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, 250 College Street, Toronto, Ontario, M5T 1R8, Canada; Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
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80
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De Berardis D, Fornaro M, Valchera A, Cavuto M, Perna G, Di Nicola M, Serafini G, Carano A, Pompili M, Vellante F, Orsolini L, Fiengo A, Ventriglio A, Yong-Ku K, Martinotti G, Di Giannantonio M, Tomasetti C. Eradicating Suicide at Its Roots: Preclinical Bases and Clinical Evidence of the Efficacy of Ketamine in the Treatment of Suicidal Behaviors. Int J Mol Sci 2018; 19:E2888. [PMID: 30249029 PMCID: PMC6213585 DOI: 10.3390/ijms19102888] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 09/19/2018] [Indexed: 12/22/2022] Open
Abstract
Despite the continuous advancement in neurosciences as well as in the knowledge of human behaviors pathophysiology, currently suicide represents a puzzling challenge. The World Health Organization (WHO) has established that one million people die by suicide every year, with the impressive daily rate of a suicide every 40 s. The weightiest concern about suicidal behavior is how difficult it is for healthcare professionals to predict. However, recent evidence in genomic studies has pointed out the essential role that genetics could play in influencing person's suicide risk. Combining genomic and clinical risk assessment approaches, some studies have identified a number of biomarkers for suicidal ideation, which are involved in neural connectivity, neural activity, mood, as well as in immune and inflammatory response, such as the mammalian target of rapamycin (mTOR) signaling. This interesting discovery provides the neurobiological bases for the use of drugs that impact these specific signaling pathways in the treatment of suicidality, such as ketamine. Ketamine, an N-methyl-d-aspartate glutamate (NMDA) antagonist agent, has recently hit the headlines because of its rapid antidepressant and concurrent anti-suicidal action. Here we review the preclinical and clinical evidence that lay the foundations of the efficacy of ketamine in the treatment of suicidal ideation in mood disorders, thereby also approaching the essential question of the understanding of neurobiological processes of suicide and the potential therapeutics.
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Affiliation(s)
- Domenico De Berardis
- National Health Service, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, "G. Mazzini" Hospital, p.zza Italia 1, 64100 Teramo, Italy.
- Department of Neuroscience, Imaging and Clinical Science, Chair of Psychiatry, University "G. D'Annunzio", 66100 Chieti, Italy.
| | - Michele Fornaro
- Polyedra Research Group, 64100 Teramo, Italy.
- Department of Neuroscience, Reproductive Science and Odontostomatology, School of Medicine 'Federico II' Naples, 80121 Naples, Italy.
| | - Alessandro Valchera
- Polyedra Research Group, 64100 Teramo, Italy.
- Villa S. Giuseppe Hospital, Hermanas Hospitalarias, 63100 Ascoli Piceno, Italy.
| | - Marilde Cavuto
- Department of Theory, Analysis and Composition, Music Conservatory "L. Canepa", 07100 Sassari, Italy.
| | - Giampaolo Perna
- Hermanas Hospitalarias, FoRiPsi, Department of Clinical Neurosciences, Villa San Benedetto Menni, Albese con Cassano, 22032 Como, Italy.
- Department of Psychiatry and Neuropsychology, University of Maastricht, 6221 Maastricht, The Netherlands.
- Department of Psychiatry and Behavioral Sciences, Leonard Miller School of Medicine, University of Miami, Coral Gables, FL 33114, USA.
| | - Marco Di Nicola
- Institute of Psychiatry and Psychology, Catholic University of Sacred Heart, 00118 Rome, Italy.
| | - Gianluca Serafini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, 16132 Genoa, Italy.
| | - Alessandro Carano
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "Madonna Del Soccorso", A.S.U.R. 12, 63074 San Benedetto del Tronto, Italy.
| | - Maurizio Pompili
- Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, 00118 Rome, Italy.
| | - Federica Vellante
- Department of Neuroscience, Imaging and Clinical Science, Chair of Psychiatry, University "G. D'Annunzio", 66100 Chieti, Italy.
| | - Laura Orsolini
- Polyedra Research Group, 64100 Teramo, Italy.
- Psychopharmacology, Drug Misuse and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, College Lane Campus, University of Hertfordshire, Hatfield SG141LZ, UK.
| | - Annastasia Fiengo
- Polyedra Research Group, 64100 Teramo, Italy.
- NHS, Department of Mental Health ASUR Marche AV5, Mental Health Unit, 63100 Ascoli Piceno, Italy.
| | - Antonio Ventriglio
- Department of Clinical and Experimental Medicine, University of Foggia, 71121 Foggia, Italy.
| | - Kim Yong-Ku
- Department of Psychiatry, Korea University College of Medicine, Seoul 08826, Korea.
| | - Giovanni Martinotti
- Department of Neuroscience, Imaging and Clinical Science, Chair of Psychiatry, University "G. D'Annunzio", 66100 Chieti, Italy.
| | - Massimo Di Giannantonio
- Department of Neuroscience, Imaging and Clinical Science, Chair of Psychiatry, University "G. D'Annunzio", 66100 Chieti, Italy.
| | - Carmine Tomasetti
- Polyedra Research Group, 64100 Teramo, Italy.
- Department of Neuroscience, Reproductive Science and Odontostomatology, School of Medicine 'Federico II' Naples, 80121 Naples, Italy.
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81
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Li C, Cai YY, Yan ZX. Brain-derived neurotrophic factor preserves intestinal mucosal barrier function and alters gut microbiota in mice. Kaohsiung J Med Sci 2018; 34:134-141. [PMID: 29475460 DOI: 10.1016/j.kjms.2017.11.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/07/2017] [Accepted: 11/03/2017] [Indexed: 12/11/2022] Open
Abstract
The intestinal mucosal barrier (IMB) enables the intestine to provide adequate containment of luminal microorganisms and molecules while preserving the ability to absorb nutrients. In this study, we explored the effect of brain-derived neurotrophic factor (BDNF) on IMB function and gut microbiota in mice. BDNF gene knock-out mice (the BDNF+/- group) and wild-type mice (the BDNF+/+ group) were selected. The gut microbiota of these mice was analyzed by denaturing gradient gel electrophoresis (DGGE) assay. The ultrastructure of the ileum and the colonic epithelium obtained from decapitated mice were observed by transmission electron microscopy. The protein expression of epithelial tight junction proteins, zonula occludens-1 (ZO-1) and occludin was detected by immunohistochemistry staining. The protein expression of claudin-1 and claudin-2 was determined by Western blotting. The DGGE band patterns of gut microbiota in the BDNF+/- group were significantly different from that in the BDNF+/+ group, which indicated that the BDNF expression alters the gut microbiota in mice. Compared with the BDNF+/+ group, the BDNF+/- group presented no significant difference in the ultrastructure of ileal epithelium; however, a significant difference was observed in the colonic epithelial barrier, manifested by decreased microvilli, widening intercellular space and bacterial invasion. Compared with the BDNF+/+ group, the expression of ZO-1 and occludin in the BDNF+/- group was significantly decreased. The expression of claudin-1 in the BDNF+/- group was significantly reduced, while the expression of claudin-2 was elevated. These findings indicate that BDNF preserves IMB function and modulates gut microbiota in mice.
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Affiliation(s)
- Chen Li
- The Fifth Department of Pediatrics Medicine, Cangzhou Central Hospital, Cangzhou, PR China
| | - Yong-Yan Cai
- The First Department of Pediatrics Medicine, Cangzhou Central Hospital, Cangzhou, PR China.
| | - Zhi-Xin Yan
- The First Department of Pediatrics Medicine, Cangzhou Central Hospital, Cangzhou, PR China
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82
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Fridriksson J, Elm J, Stark BC, Basilakos A, Rorden C, Sen S, George MS, Gottfried M, Bonilha L. BDNF genotype and tDCS interaction in aphasia treatment. Brain Stimul 2018; 11:1276-1281. [PMID: 30150003 PMCID: PMC6293970 DOI: 10.1016/j.brs.2018.08.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 12/12/2022] Open
Abstract
Background: Several studies, including a randomized controlled trial by our group, support applying anodal tDCS (A-tDCS) to the left hemisphere during behavioral aphasia treatment to improve outcomes. A clear mechanism explaining A-tDCS’s efficacy has not been established, but modulation of neuroplasticity may be involved. Objective/hypothesis: The brain-derived neurotrophic factor (BDNF) gene influences neuroplasticity and may modulate the effects of tDCS. Utilizing data from our recently completed trial, we conducted a planned test of whether aphasia treatment outcome is influenced by interaction between A-tDCS and a single-nucleotide polymorphism of the BDNF gene, rs6265. Methods: Seventy-four individuals with chronic stroke-induced aphasia completed 15 language therapy sessions and were randomized to receive 1 mA A-tDCS or sham tDCS (S-tDCS) to the intact left temporoparietal region for the first 20 min of each session. BDNF genotype was available for 67 participants: 37 participants had the typical val/val genotype. The remaining 30 participants had atypical BDNF genotype (Met allele carriers). The primary outcome factor was improvement in object naming at 1 week after treatment completion. Maintenance of treatment effects was evaluated at 4 and 24 weeks. Results: An interaction was revealed between tDCS condition and genotype for treatment-related naming improvement (F = 4.97, p = 0.03). Participants with val/val genotype who received A-tDCS showed greater response to aphasia treatment than val/val participants who received S-tDCS, as well as the Met allele carriers, regardless of tDCS condition. Conclusion: Individuals with the val/val BDNF genotype are more likely to benefit from A-tDCS during aphasia treatment.
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Affiliation(s)
- Julius Fridriksson
- Department of Communication Sciences & Disorders, University of South Carolina, USA.
| | - Jordan Elm
- Department of Public Health Sciences, Medical University of South Carolina, USA
| | - Brielle C Stark
- Department of Communication Sciences & Disorders, University of South Carolina, USA
| | - Alexandra Basilakos
- Department of Communication Sciences & Disorders, University of South Carolina, USA
| | - Chris Rorden
- Department of Psychology, University of South Carolina, USA
| | - Souvik Sen
- Department of Neurology, University of South Carolina, USA
| | - Mark S George
- Department of Psychiatry, Medical University of South Carolina, USA; Department of Neurology, Medical University of South Carolina, USA; Ralph H. Johnson VA Medical Center, Charleston, USA
| | - Michelle Gottfried
- Department of Public Health Sciences, Medical University of South Carolina, USA
| | - Leonardo Bonilha
- Department of Neurology, Medical University of South Carolina, USA
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83
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Shen T, You Y, Joseph C, Mirzaei M, Klistorner A, Graham SL, Gupta V. BDNF Polymorphism: A Review of Its Diagnostic and Clinical Relevance in Neurodegenerative Disorders. Aging Dis 2018; 9:523-536. [PMID: 29896439 PMCID: PMC5988606 DOI: 10.14336/ad.2017.0717] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 07/17/2017] [Indexed: 12/17/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) has a unique role in the neuronal development, differentiation, and survival in the developing and adult nervous system. A common single-nucleotide polymorphism in the pro-region of the human BDNF gene, resulting in a valine to methionine substitution (Val66Met), has been associated with the susceptibility, incidence, and clinical features of several neurodegenerative disorders. Much research has been dedicated to evaluating the effects of polymorphism in the past decade, and functional effects of this genetic variation. A better understanding of how this naturally occurring polymorphism associates with or influences physiology, anatomy, and cognition in both healthy and diseased adults in neurodegenerative conditions will help understand neurochemical mechanisms and definable clinical outcomes in humans. Here we review the role and relevance of the BDNF Val66Met polymorphism in neurodegenerative diseases, with particular emphasis on glaucoma, multiple sclerosis (MS), Alzheimer’s disease (AD) and Parkinson’s disease (PD). Several controversies and unresolved issues, including small effect sizes, possible ethnicity, gender, and age effects of the BDNF Val66Met are also discussed with respect to future research.
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Affiliation(s)
- Ting Shen
- 1Faculty of Medicine and Health Sciences, Macquarie University, Australia
| | - Yuyi You
- 2Save Sight Institute, Sydney University, Sydney, Australia
| | - Chitra Joseph
- 1Faculty of Medicine and Health Sciences, Macquarie University, Australia
| | - Mehdi Mirzaei
- 3Faculty of Science and Engineering, Macquarie University, Australia
| | - Alexander Klistorner
- 1Faculty of Medicine and Health Sciences, Macquarie University, Australia.,2Save Sight Institute, Sydney University, Sydney, Australia
| | - Stuart L Graham
- 1Faculty of Medicine and Health Sciences, Macquarie University, Australia.,2Save Sight Institute, Sydney University, Sydney, Australia
| | - Vivek Gupta
- 1Faculty of Medicine and Health Sciences, Macquarie University, Australia
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84
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Tsai SJ. Critical Issues in BDNF Val66Met Genetic Studies of Neuropsychiatric Disorders. Front Mol Neurosci 2018; 11:156. [PMID: 29867348 PMCID: PMC5962780 DOI: 10.3389/fnmol.2018.00156] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/24/2018] [Indexed: 12/20/2022] Open
Abstract
Neurotrophins have been implicated in the pathophysiology of many neuropsychiatric diseases. Brain-derived neurotrophic factor (BDNF) is the most abundant and widely distributed neurotrophin in the brain. Its Val66Met polymorphism (refSNP Cluster Report: rs6265) is a common and functional single-nucleotide polymorphism (SNP) affecting the activity-dependent release of BDNF. BDNF Val66Met transgenic mice have been generated, which may provide further insight into the functional impact of this polymorphism in the brain. Considering the important role of BDNF in brain function, more than 1,100 genetic studies have investigated this polymorphism in the past 15 years. Although these studies have reported some encouraging positive findings initially, most of the findings cannot be replicated in following studies. These inconsistencies in BDNF Val66Met genetic studies may be attributed to many factors such as age, sex, environmental factors, ethnicity, genetic model used for analysis, and gene–gene interaction, which are discussed in this review. We also discuss the results of recent studies that have reported the novel functions of this polymorphism. Because many BDNF polymorphisms and non-genetic factors have been implicated in the complex traits of neuropsychiatric diseases, the conventional genetic association-based method is limited to address these complex interactions. Future studies should apply data mining and machine learning techniques to determine the genetic role of BDNF in neuropsychiatric diseases.
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Affiliation(s)
- Shih-Jen Tsai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
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85
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Association Between the Brain-derived Neurotrophic Factor Val66Met Polymorphism and Overweight/Obesity in Pediatric Population. Arch Med Res 2018; 48:599-608. [PMID: 29506764 DOI: 10.1016/j.arcmed.2018.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 02/22/2018] [Indexed: 11/23/2022]
Abstract
BACKGROUND The brain-derived neurotrophic factor (BDNF) rs6265 (G196A; Val66Met) single nucleotide polymorphism has been associated with BMI and obesity in distinct populations, both adult and pediatric, with contradictory results involving either Val or Met as the risk variant. AIM OF THE STUDY To determine the association between the BDNF Val66Met polymorphism and BMI in Mexican children and adolescents. METHODS BDNF Val66Met genotyping by restriction fragment length polymorphism and nutritional status characterized by their BMI-for-age z-scores (BAZ) from pediatric volunteers (n = 498) were analyzed by Fisher's exact test association analysis. Standardized residuals (R) were used to determine which genotype/allele had the major influence on the significant Fisher's exact test statistic. Odds ratios were analyzed to measure the association between genotype and normal weight (≥-2 SD < + 1 SD) and overweight (≥ + 1 SD, including obesity, Ow + Ob) status with 95% confidence intervals to estimate the precision of the effect as well as 95% credible intervals to obtain the most probable estimate. RESULTS Comparisons between GG (Val/Val), GA (Val/Met) and AA (Met/Met) genotypes or Met homozygotes vs. Val carriers (combination of GG and GA genotypes) showed significant differences (p = 0.034 and p = 0.037, respectively) between normal weight and the combined overweight and obese pediatric subjects. Our data showed that children/adolescents homozygous for the A allele have increased risk of overweight compared to the Val carriers (Bayes OR = 4.2, 95% CI**[1.09-33.1]). CONCLUSION This is the first study showing the significant association between the BDNF rs6265 AA (Met/Met) genotype and overweight/obesity in Mexican pediatric population.
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de Araujo CM, Zugman A, Swardfager W, Belangero SIN, Ota VK, Spindola LM, Hakonarson H, Pellegrino R, Gadelha A, Salum GA, Pan PM, de Moura LM, Del Aquilla M, Picon FA, Amaro E, Sato JR, Brietzke E, Grassi-Oliveira R, Rohde LAP, Miguel EC, Bressan RA, Jackowski AP. Effects of the brain-derived neurotropic factor variant Val66Met on cortical structure in late childhood and early adolescence. J Psychiatr Res 2018; 98:51-58. [PMID: 29288952 DOI: 10.1016/j.jpsychires.2017.12.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/18/2017] [Accepted: 12/14/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND The brain-derived neurotrophic factor (BDNF) Val66Met polymorphism (rs6265) has been associated with several neuropsychiatric disorders and regional structural brain changes in adults, but little is known about Val66Met's effect on brain morphology during typical or atypical neurodevelopment. Windows of vulnerability to psychopathology may be associated with the different alleles of the Val66Met polymorphism during childhood and adolescence. METHODOLOGY We investigated the effect of Val66Met on cortical thickness in MRI scans of 718 children and adolescents (6-12 years old) with typical development, and in those meeting DSM criteria for a psychiatric disorder. RESULTS Val66Met had a significant effect on cortical thickness. Considering the typically developing group, Met-carriers presented thicker parietal and occipital lobes and prefrontal cortices compared to Val homozygotes. Met-carriers with psychiatric disorders presented thicker medial and lateral temporal cortices than Val homozygotes. Furthermore, a significant genotype × psychiatric diagnosis interaction was found: Met-carriers with a psychiatric diagnosis presented thinner bilateral prefrontal cortices than Val homozygotes. CONCLUSION This study provides evidence that Val66Met is associated with cortical maturation in children and adolescents with and without psychiatric disorders.
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Affiliation(s)
- Celia Maria de Araujo
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil.
| | - Andre Zugman
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | - Walter Swardfager
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, Canada; Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Canada
| | - Sintia Iole Nogueira Belangero
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil; Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Vanessa Kiyomi Ota
- Department of Psychiatry, Universidade Federal de São Paulo, Brazil; Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Leticia Maria Spindola
- Department of Psychiatry, Universidade Federal de São Paulo, Brazil; Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Renata Pellegrino
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ary Gadelha
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | - Giovanni Abrahão Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Pedro Mario Pan
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | | | - Marco Del Aquilla
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | - Felipe Almeida Picon
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Edson Amaro
- Institute of Radiology (INRAD), Universidade de São Paulo, São Paulo, Brazil
| | - João Ricardo Sato
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Mathematics & Statistics Institute, Universidade Federal do ABC, Santo André, Brazil
| | - Elisa Brietzke
- Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | - Rodrigo Grassi-Oliveira
- Developmental Cognitive Neuroscience Laboratory (DCNL), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Luis Augusto P Rohde
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Euripedes Constantino Miguel
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department & Institute of Psychiatry (IPq), Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo A Bressan
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
| | - Andrea Parolin Jackowski
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), São Paulo, Brazil; Department of Psychiatry, Universidade Federal de São Paulo, Brazil
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87
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Kalenda A, Landgraf K, Löffler D, Kovacs P, Kiess W, Körner A. The BDNF Val66Met polymorphism is associated with lower BMI, lower postprandial glucose levels and elevated carbohydrate intake in children and adolescents. Pediatr Obes 2018; 13:159-167. [PMID: 28960774 DOI: 10.1111/ijpo.12238] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 08/05/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND The amino acid-changing exonic variant rs6265 (Val66Met polymorphism) in the brain-derived neurotrophic factor (BDNF) has been linked to obesity in several genotype-phenotype association studies. OBJECTIVE To identify metabolic factors by which this effect might be conveyed, we aimed to investigate its correlation with (i) obesity, (ii) metabolic parameters, (iii) serum levels of BDNF and (iv) measures of energy intake in children and adolescents. METHODS We genotyped the variant in 2131 subjects (age 6-18 years) and checked for an association with obesity. Secondly, we correlated the genotype with parameters of glucose and lipid metabolism (fasting/postprandial glucose and insulin levels, HbA1c, homeostasis model assessment, Matsuda, high-density lipoprotein, low-density lipoprotein, total cholesterol and triglycerides) in a smaller subset of 845 subjects. We determined BDNF serum levels in 177 individuals by enzyme-linked immunosorbent assay and assessed the association with genotype and metabolic parameters. Finally, we investigated the association between genotype and macronutrient intake from self-reported food diaries (n = 146). RESULTS The minor Met allele was associated with lower BMI standard deviation score (p = 0.002). Post-pubertal Met allele carriers showed lower postprandial glucose levels and a lower HbA1c (β = 0.15, p = 0.046 and β = 0.27, p = 0.012, respectively). Neither the genotype nor any of the metabolic parameters correlated with BDNF serum levels. We observed an increased total calorie intake (β = -0.21, p = 0.007) with increased carbohydrate and protein intake (β = -0.22, p = 0.005 and β = -0.14, p = 0.028, respectively) in Met allele carriers. CONCLUSIONS We confirmed the association of the minor Met allele with lower BMI in children and provide new data that it is associated with lower postprandial glucose in post-pubertal subjects. Moreover, Met allele carriers reported to consume more carbohydrates and proteins.
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Affiliation(s)
- A Kalenda
- Center for Pediatric Research Leipzig (CPL), University Hospital for Children and Adolescents, University Hospital Leipzig, Leipzig, Germany.,Integrated Research and Treatment Centre (IFB) AdiposityDiseases, University of Leipzig, Leipzig, Germany
| | - K Landgraf
- Center for Pediatric Research Leipzig (CPL), University Hospital for Children and Adolescents, University Hospital Leipzig, Leipzig, Germany.,Integrated Research and Treatment Centre (IFB) AdiposityDiseases, University of Leipzig, Leipzig, Germany
| | - D Löffler
- Center for Pediatric Research Leipzig (CPL), University Hospital for Children and Adolescents, University Hospital Leipzig, Leipzig, Germany.,Integrated Research and Treatment Centre (IFB) AdiposityDiseases, University of Leipzig, Leipzig, Germany
| | - P Kovacs
- Integrated Research and Treatment Centre (IFB) AdiposityDiseases, University of Leipzig, Leipzig, Germany
| | - W Kiess
- Center for Pediatric Research Leipzig (CPL), University Hospital for Children and Adolescents, University Hospital Leipzig, Leipzig, Germany
| | - A Körner
- Center for Pediatric Research Leipzig (CPL), University Hospital for Children and Adolescents, University Hospital Leipzig, Leipzig, Germany.,Integrated Research and Treatment Centre (IFB) AdiposityDiseases, University of Leipzig, Leipzig, Germany
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88
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Watts A, Andrews SJ, Anstey KJ. Sex Differences in the Impact of BDNF Genotype on the Longitudinal Relationship between Physical Activity and Cognitive Performance. Gerontology 2018; 64:361-372. [PMID: 29402782 DOI: 10.1159/000486369] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 12/18/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Physical activity may preserve cognitive function in older adults, but benefits vary by sex and genetic factors. OBJECTIVE We tested the longitudinal association between physical activity and cognitive performance to de termine whether a common genetic polymorphism for brain-derived neurotrophic factor (BDNF Val66Met) moderated this effect. METHODS In a 12-year longitudinal population-based sample of older adults (n = 2,218), we used growth curve modeling to investigate whether the benefits of physical activity on cognitive preservation differed by BDNF genotype and sex across multiple cognitive domains including processing speed, attention, working memory, and episodic verbal memory. RESULTS The relationship between physical activity and cognitive performance was dependent on BDNF carrier status in males (Δχ2 [Δdf] = 12.94 [4], p = 0.01), but not in females (Δχ2 [Δdf] = 4.38 [4], p = 0.36). Cognition benefited from physical activity in male BDNF met noncarriers, but not met carriers, whereas cognition was not statistically significantly related to physical activity in females regardless of genotype. CONCLUSION We observed longitudinal, but not cross-sectional, effects of physical activity on cognitive performance. Our study highlights the importance of longitudinal follow-up and consideration of sex differences in the relationships between physical activity, BDNF genotype, and cognitive decline. The findings contribute to understanding gene-lifestyle interactions in promoting cognitive health.
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Affiliation(s)
- Amber Watts
- Department of Clinical Psychology, University of Kansas, Lawrence, Kansas, USA
| | - Shea J Andrews
- Centre for Research on Ageing, Health & Wellbeing, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Kaarin J Anstey
- Centre for Research on Ageing, Health & Wellbeing, Australian National University, Canberra, Australian Capital Territory, Australia
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89
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Martin L, Hemmings SMJ, Kidd M, Seedat S. No gene-by-environment interaction of BDNF Val66Met polymorphism and childhood maltreatment on anxiety sensitivity in a mixed race adolescent sample. Eur J Psychotraumatol 2018; 9:1472987. [PMID: 29805780 PMCID: PMC5965035 DOI: 10.1080/20008198.2018.1472987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 04/20/2018] [Indexed: 12/22/2022] Open
Abstract
Background: Anxiety disorders in youth are attributable to multiple causal mechanisms, comprising biological vulnerabilities, such as genetics and temperament, and unfavourable environmental influences, such as childhood maltreatment (CM). Objective: A gene-environment (G x E) interaction study was conducted to determine the interactive effect of the BDNF Val66Met polymorphism and CM to increase susceptibility to anxiety sensitivity (AS) in a sample of mixed race adolescents. Method: Participants (n = 308, mean age = 15.8 years) who were all secondary school students and who completed measures for AS and CM were genotyped for the BDNF Val66Met polymorphism. Hierarchical multiple regression analysis was conducted to assess G x E influences on AS. Age and gender were included in the models as covariates as age was significantly associated with AS total score (p < .05), and females had significantly higher AS scores than males (p < .05). Results: A main effect of CM on AS was evident (p < .05), however, no main effect of BDNF genotype on AS was observed (p > .05). A non-significant G x E effect on AS was revealed (p < .05). Conclusions: Our results suggest that CM does not have a moderating role in the relationship between the BDNF Val66Met genotype and the increased risk of anxiety-related phenotypes, such as AS. Given the exploratory nature of this study, findings require replication in larger samples and adjustment for population stratification to further explore the role of BDNF Val66Met and CM on AS in mixed race adolescents.
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Affiliation(s)
- Lindi Martin
- Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
| | | | - Martin Kidd
- Department of Statistics and Actuarial Science, Stellenbosch University, Cape Town, South Africa
| | - Soraya Seedat
- Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
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90
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Tudor L, Konjevod M, Nikolac Perkovic M, Svob Strac D, Nedic Erjavec G, Uzun S, Kozumplik O, Sagud M, Kovacic Petrovic Z, Pivac N. Genetic Variants of the Brain-Derived Neurotrophic Factor and Metabolic Indices in Veterans With Posttraumatic Stress Disorder. Front Psychiatry 2018; 9:637. [PMID: 30542302 PMCID: PMC6277864 DOI: 10.3389/fpsyt.2018.00637] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/08/2018] [Indexed: 12/12/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is a trauma and stressor related disorder that may develop after exposure to an event that involved the actual or possible threat of death, violence or serious injury. Its molecular underpinning is still not clear. Brain-derived neurotrophic factor (BDNF) modulates neuronal processes such as the response to stress, but also weight control, energy and glucose homeostasis. Plasma BDNF levels and a functional BDNF Val66Met (rs6265) polymorphism were reported to be associated with PTSD, as well as with increased body mass index (BMI) and dyslipidaemia in healthy subjects and patients with cardio-metabolic diseases, but these results are controversial. The other frequently studied BDNF polymorphism, C270T (rs56164415), has been associated with the development of different neuropsychiatric symptoms/disorders. As far as we are aware, there are no data on the association of BDNF Val66Met and C270T polymorphisms with metabolic indices in PTSD. Due to high rates of obesity and dyslipidaemia in PTSD, the aim of this study was to elucidate the association of BDNF Val66Met and C270T polymorphisms with BMI and lipid levels in veterans with PTSD. We hypothesized that BDNF variants contribute to susceptibility to metabolic disturbances in PTSD. The study included 333 Caucasian males with combat related PTSD, diagnosed according to DSM-5 criteria. Genotyping of the BDNF Val66Met and C270T polymorphisms was performed using the real-time PCR method. Results were analyzed using hierarchical multiple linear regression and the Mann-Whitney test, with p-value corrected to 0.005. The results showed that BDNF Val66Met and BDNF C270T polymorphisms were not significantly associated with BMI, total cholesterol, LDL-cholesterol, HDL-cholesterol or triglycerides. Although the BDNF C270T polymorphism was nominally associated only with HDL-cholesterol in veterans with PTSD, this significance disappeared after controlling for the effect of age. Namely, slightly higher plasma HDL values in T allele carriers, compared to CC homozygotes, were associated with differences in age. Our results, controlled for the critical covariates, revealed that BDNF Val66Met and C270T were not significantly associated with metabolic indices in veterans with PTSD and that these genetic variants do not contribute to susceptibility to metabolic disturbances in PTSD.
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Affiliation(s)
- Lucija Tudor
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Marcela Konjevod
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Matea Nikolac Perkovic
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Dubravka Svob Strac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Gordana Nedic Erjavec
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Suzana Uzun
- Department of Biological Psychiatry and Psychogeriatry, University Psychiatric Hospital Vrapce, Zagreb, Croatia.,Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Oliver Kozumplik
- Department of Biological Psychiatry and Psychogeriatry, University Psychiatric Hospital Vrapce, Zagreb, Croatia.,Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Marina Sagud
- School of Medicine, University of Zagreb, Zagreb, Croatia.,Department of Psychiatry, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Zrnka Kovacic Petrovic
- Department of Biological Psychiatry and Psychogeriatry, University Psychiatric Hospital Vrapce, Zagreb, Croatia.,Department of Psychopharmacology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Nela Pivac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
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91
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Hao R, Qi Y, Hou DN, Ji YY, Zheng CY, Li CY, Yung WH, Lu B, Huang Y. BDNF val66met Polymorphism Impairs Hippocampal Long-Term Depression by Down-Regulation of 5-HT3 Receptors. Front Cell Neurosci 2017; 11:306. [PMID: 29075179 PMCID: PMC5643500 DOI: 10.3389/fncel.2017.00306] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 09/13/2017] [Indexed: 12/17/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a key regulator of neuronal plasticity and cognitive functions. BDNF val66met polymorphism, a human single-nucleotide polymorphism (SNP) in the pro-domain of BDNF gene, is associated with deficits in activity-dependent BDNF secretion and hippocampus-dependent memory. However, the underlying mechanism remains unclear. Here we show that in the BDNFMet/Met mouse line mimicking the human SNP, BDNF expression in the hippocampus was decreased. There was a reduction in the total number of cells in hippocampal CA1 region, while hippocampal expression of mRNAs for NR2a, 2b, GluR1, 2 and GABAARβ3 subunits were up-regulated. Although basal glutamatergic neurotransmission was unaltered, hippocampal long-term depression (LTD) induced by low-frequency stimulation was impaired, which was partially rescued by exogenous application of BDNF. Interestingly, 5-HT3a receptors were down-regulated in the hippocampus of BDNFMet/Met mice, whereas 5-HT2c receptors were up-regulated. Moreover, impaired LTD in BDNFMet/Met mice was reversed by 5-HT3aR agonist. Thus, these observations indicate that BDNF val66met polymorphism changes hippocampal synaptic plasticity via down-regulation of 5-HT3a receptors, which may underlie cognition dysfunction of Met allele carriers.
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Affiliation(s)
- Rui Hao
- Laboratory of Neuronal Circuit & Neuroplasticity, Department of Neurology, Tongji Hospital, Shanghai, China.,Department of Physiology and Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Qi
- Laboratory of Neuronal Circuit & Neuroplasticity, Department of Neurology, Tongji Hospital, Shanghai, China.,Department of Physiology and Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Dong-Ni Hou
- Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuan-Yuan Ji
- Neurodegeneration Discovery Performance Unit, GlaxoSmithKline (China) R&D, Shanghai, China
| | - Chun-Yan Zheng
- Neurodegeneration Discovery Performance Unit, GlaxoSmithKline (China) R&D, Shanghai, China
| | - Chu-Yu Li
- Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wing-Ho Yung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Bai Lu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Ying Huang
- Laboratory of Neuronal Circuit & Neuroplasticity, Department of Neurology, Tongji Hospital, Shanghai, China.,Department of Physiology and Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
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92
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A sexually dimorphic pre-stressed translational signature in CA3 pyramidal neurons of BDNF Val66Met mice. Nat Commun 2017; 8:808. [PMID: 28993643 PMCID: PMC5634406 DOI: 10.1038/s41467-017-01014-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 08/11/2017] [Indexed: 12/11/2022] Open
Abstract
Males and females use distinct brain circuits to cope with similar challenges. Using RNA sequencing of ribosome-bound mRNA from hippocampal CA3 neurons, we found remarkable sex differences and discovered that female mice displayed greater gene expression activation after acute stress than males. Stress-sensitive BDNF Val66Met mice of both sexes show a pre-stressed translational phenotype in which the same genes that are activated without applied stress are also induced in wild-type mice by an acute stressor. Behaviourally, only heterozygous BDNF Val66Met females exhibit spatial memory impairment, regardless of acute stress. Interestingly, this effect is not observed in ovariectomized heterozygous BDNF Val66Met females, suggesting that circulating ovarian hormones induce cognitive impairment in Met carriers. Cognitive deficits are not observed in males of either genotype. Thus, in a brain region not normally associated with sex differences, this work sheds light on ways that genes, environment and sex interact to affect the transcriptome’s response to a stressor. Animals’ response to acute stress is known to be influenced by sex and genetics. Here the authors performed RNA-seq on actively translated mRNAs in hippocampal CA3 neurons in mice, and document the effects of sex and genotype (i.e., BDNF Val66Met) on acute stress-induced gene expression.
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93
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Meng J, Hao L, Wei D, Sun J, Li Y, Qiu J. BDNF Val66Met polymorphism modulates the effect of loneliness on white matter microstructure in young adults. Biol Psychol 2017; 130:41-49. [PMID: 28988974 DOI: 10.1016/j.biopsycho.2017.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 09/15/2017] [Accepted: 10/02/2017] [Indexed: 12/18/2022]
Abstract
Loneliness is a common experience. Susceptibility to loneliness is a stable trait and is heritable. Previous studies have suggested that loneliness may impact regional gray matter density and brain activation to social stimuli, but its relation to white matter structure and how it may interact with genetic factors remains unclear. In this study, we investigated whether and how a common polymorphism (Val66Met) in the brain-derived neurotrophic factor gene modulated the association between loneliness and white matter microstructure in 162 young adults. The tract-based spatial statistics analyses revealed that the relationships between loneliness and white matter microstructures were significantly different between Val/Met heterozygotes and Val/Val homozygotes. Specifically, loneliness was significantly correlated with reduced fractional anisotropy and increased radial diffusivity in widespread white matter fibers within Val/Met heterozygotes. It was also significantly correlated with increased radial diffusivity in Met/Met genotypes but showed no significant association with white matter measures in Val/Val genotypes. Furthermore, the associations between loneliness and fractional anisotropy (or radial diffusivity) in Val/Met heterozygotes turned out to be global effects. These results provide evidence that loneliness may interact with the BDNF Val66Met polymorphism to shape the microstructures of white matter, and the Val/Met heterozygotes may be more susceptible to social environment.
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Affiliation(s)
- Jie Meng
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China
| | - Lei Hao
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China; Department of Psychology, Beijing Normal University, Beijing 100875, China
| | - Dongtao Wei
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China
| | - Jiangzhou Sun
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China
| | - Yu Li
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China
| | - Jiang Qiu
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China; Department of Psychology, Southwest University, Chongqing 400715, China.
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de Boer RGA, Spielmann K, Heijenbrok-Kal MH, van der Vliet R, Ribbers GM, van de Sandt-Koenderman WME. The Role of the BDNF Val66Met Polymorphism in Recovery of Aphasia After Stroke. Neurorehabil Neural Repair 2017; 31:851-857. [PMID: 28818006 DOI: 10.1177/1545968317723752] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is assumed to play a role in mediating neuroplasticity after stroke. Carriers of the function-limiting Val66Met (rs6265) single nucleotide polymorphism (SNP) may have a downregulation in BDNF secretion, which may lead to a poorer prognosis after stroke compared to noncarriers in motor learning and motor function recovery. The present study investigates whether this polymorphism may also affect the recovery of poststroke aphasia (ie, language impairment). OBJECTIVE To study the influence of the BDNF Val66Met polymorphism on the recovery of poststroke aphasia. METHODS We included 53 patients with poststroke aphasia, all participating in an inpatient rehabilitation program with speech and language therapy. All patients were genotyped for the Val66Met SNP and subdivided into carriers (at least one Met allele) and noncarriers (no Met allele). Primary outcome measures included the improvement over rehabilitation time on the Amsterdam-Nijmegen Everyday Language Test (ANELT) and the Boston Naming Test (BNT). RESULTS The outcome measures showed a large variability in the improvement scores on both the ANELT and BNT. There was no significant difference between noncarriers and carriers in the primary outcome measures. CONCLUSION This study investigated the effect of the BDNF Val66Met polymorphism on clinical recovery of poststroke aphasia. In contrast to earlier studies describing a reducing effect of this polymorphism on motor function recovery after stroke, the present study does not support a reduction in language recovery for carriers compared to noncarriers with poststroke aphasia.
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Affiliation(s)
- Riemke G A de Boer
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Kerstin Spielmann
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Majanka H Heijenbrok-Kal
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Rick van der Vliet
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Gerard M Ribbers
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - W Mieke E van de Sandt-Koenderman
- 1 Rijndam Rehabilitation, Rotterdam, Netherlands.,2 Department of Rehabilitation Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
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95
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Skibinska M, Groszewska A, Kapelski P, Rajewska-Rager A, Pawlak J, Dmitrzak-Weglarz M, Szczepankiewicz A, Twarowska-Hauser J. Val66Met functional polymorphism and serum protein level of brain-derived neurotrophic factor (BDNF) in acute episode of schizophrenia and depression. Pharmacol Rep 2017; 70:55-59. [PMID: 29331787 DOI: 10.1016/j.pharep.2017.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/04/2017] [Accepted: 08/07/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) influences neuron differentiation during development as well as the synaptic plasticity and neuron survival in adulthood. BDNF has been implicated in the pathogenesis of schizophrenia and depression. Val66Met polymorphism and BDNF serum level are potential biomarkers in neuropsychiatric disorders. The aim of this study was to determine the effect of BDNF gene Val66Met functional polymorphism on serum BDNF concentration in patients with schizophrenia, during depression episode and in healthy control group. METHODS 183 participants were recruited (61 patients with depressive episode, 56 females with schizophrenia, 66 healthy controls) from Polish population. Serum BDNF levels were measured using ELISA method. Val66Met polymorphism was genotyped using PCR- RFLP method. RESULTS Serum BDNF levels were not associated with Val66Met polymorphism in either of the groups. A significant increase of BDNF level in schizophrenia (p = 0.0005) and depression (p = 0.026) comparing to the control group has been observed. CONCLUSIONS Our results suggest that the functional Val66Met BDNF polymorphism is not associated with BDNF serum levels, which is in line with previous findings. Replication studies on larger groups are needed.
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Affiliation(s)
- Maria Skibinska
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland.
| | - Agata Groszewska
- Department of Biochemistry, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Pawel Kapelski
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland
| | | | - Joanna Pawlak
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland
| | - Monika Dmitrzak-Weglarz
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland
| | - Aleksandra Szczepankiewicz
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland; Laboratory of Molecular and Cell Biology, Poznan University of Medical Sciences, Poznań, Poland
| | - Joanna Twarowska-Hauser
- Laboratory of Psychiatric Genetics, Department of Psychiatry, Poznan University of Medical Sciences, Poznań, Poland
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96
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Dinoff A, Herrmann N, Swardfager W, Lanctôt KL. The effect of acute exercise on blood concentrations of brain-derived neurotrophic factor in healthy adults: a meta-analysis. Eur J Neurosci 2017; 46:1635-1646. [PMID: 28493624 DOI: 10.1111/ejn.13603] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/20/2017] [Accepted: 05/01/2017] [Indexed: 12/12/2022]
Abstract
It has been hypothesized that one mechanism through which physical activity provides benefits to cognition and mood is via increasing brain-derived neurotrophic factor (BDNF) concentrations. Some studies have reported immediate benefits to mood and various cognitive domains after a single session of exercise. This meta-analysis sought to determine the effect of a single exercise session on concentrations of BDNF in peripheral blood, in order to evaluate the potential role of BDNF in mediating the beneficial effects of exercise on brain health. MEDLINE, Embase, PsycINFO, SPORTDiscus, Rehabilitation & Sports Medicine Source, and CINAHL databases were searched for original, peer-reviewed reports of peripheral blood BDNF concentrations before and after acute exercise interventions. Risk of bias within studies was assessed using standardized criteria. Standardized mean differences (SMDs) were generated from random effects models. Risk of publication bias was assessed using a funnel plot and Egger's test. Potential sources of heterogeneity were explored in subgroup analyses. In 55 studies that met inclusion criteria, concentrations of peripheral blood BDNF were higher after exercise (SMD = 0.59, 95% CI: 0.46-0.72, P < 0.001). In meta-regression analysis, greater duration of exercise was associated with greater increases in BDNF. Subgroup analyses revealed an effect in males but not in females, and a greater BDNF increase in plasma than serum. Acute exercise increased BDNF concentrations in the peripheral blood of healthy adults. This effect was influenced by exercise duration and may be different across genders.
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Affiliation(s)
- Adam Dinoff
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.,Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, Canada
| | - Nathan Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.,Department of Psychiatry, Faculty of Medicine, University of Toronto, 250 College Street, Toronto, ON, M5T 1R8, Canada
| | - Walter Swardfager
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.,Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, Canada
| | - Krista L Lanctôt
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada.,Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON, Canada.,Department of Psychiatry, Faculty of Medicine, University of Toronto, 250 College Street, Toronto, ON, M5T 1R8, Canada
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97
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Tajbakhsh A, Mokhtari-Zaer A, Rezaee M, Afzaljavan F, Rivandi M, Hassanian SM, Ferns GA, Pasdar A, Avan A. Therapeutic Potentials of BDNF/TrkB in Breast Cancer; Current Status and Perspectives. J Cell Biochem 2017; 118:2502-2515. [PMID: 28230291 DOI: 10.1002/jcb.25943] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 02/21/2017] [Indexed: 12/14/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is a potent neurotrophic factor that has been shown to stimulate breast cancer cell growth and metastasis via tyrosine kinase receptors TrkA, TrkB, and the p75NTR death receptor. The aberrant activation of BDNF/TrkB pathways can modulate several signaling pathways, including Akt/PI3K, Jak/STAT, NF-kB, UPAR/UPA, Wnt/β-catenin, and VEGF pathways as well as the ER receptor. Several microRNAs have been identified that are involved in the modulation of BDNF/TrkB pathways. These include miR-206, miR-204, MiR-200a/c, MiR-210, MiR-134, and MiR-191; and these may be of value as prognostic and predictive biomarkers for detecting patients at high risk of developing breast cancer. It has been also been demonstrated that a high expression of genes involved in the BDNF pathway in breast cancer is associated with poor clinical outcome and reduced survival of patients. Several approaches have been developed for targeting this pathway, for example TKr inhibitors (AZD6918, CEP-701) and RNA interference. The aim of the current review was to provide an overview of the role of BDNF/TrkB pathways in the pathogenesis of breast cancer and its value as a potential therapeutic target. J. Cell. Biochem. 118: 2502-2515, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Amir Tajbakhsh
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amin Mokhtari-Zaer
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Centre and Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Rezaee
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Afzaljavan
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Rivandi
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Department of Medical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, UK
| | - Alireza Pasdar
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Division of Applied Medicine, Medical School, University of Aberdeen, Foresterhill, Aberdeen, UK.,Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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98
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Coskunoglu A, Orenay-Boyacioglu S, Deveci A, Bayam M, Onur E, Onan A, Cam FS. Evidence of associations between brain-derived neurotrophic factor (BDNF) serum levels and gene polymorphisms with tinnitus. Noise Health 2017; 19:140-148. [PMID: 28615544 PMCID: PMC5501024 DOI: 10.4103/nah.nah_74_16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) gene polymorphisms are associated with abnormalities in regulation of BDNF secretion. Studies also linked BDNF polymorphisms with changes in brainstem auditory-evoked response test results. Furthermore, BDNF levels are reduced in tinnitus, psychiatric disorders, depression, dysthymic disorder that may be associated with stress, conversion disorder, and suicide attempts due to crises of life. For this purpose, we investigated whether there is any role of BDNF changes in the pathophysiology of tinnitus. MATERIALS AND METHODS In this study, we examined the possible effects of BDNF variants in individuals diagnosed with tinnitus for more than 3 months. Fifty-two tinnitus subjects between the ages of 18 and 55, and 42 years healthy control subjects in the same age group, who were free of any otorhinolaryngology and systemic disease, were selected for examination. The intensity of tinnitus and depression was measured using the tinnitus handicap inventory, and the differential diagnosis of psychiatric diagnoses made using the Structured Clinical Interview for Fourth Edition of Mental Disorders. BDNF gene polymorphism was analyzed in the genomic deoxyribonucleic acid (DNA) samples extracted from the venous blood, and the serum levels of BDNF were measured. One-way analysis of variance and Chi-squared tests were applied. RESULTS Serum BDNF level was found lower in the tinnitus patients than controls, and it appeared that there is no correlation between BDNF gene polymorphism and tinnitus. CONCLUSIONS This study suggests neurotrophic factors such as BDNF may have a role in tinnitus etiology. Future studies with larger sample size may be required to further confirm our results.
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Affiliation(s)
- Aysun Coskunoglu
- Department of Medical Genetics, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Seda Orenay-Boyacioglu
- Department of Medical Genetics, Faculty of Medicine, Adnan Menderes University, Efeler, Aydin, Turkey
| | - Artuner Deveci
- Department of Psychiatry, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Mustafa Bayam
- Department of Otorhinolaryngology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Ece Onur
- Department of Medical Biochemistry, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Arzu Onan
- Department of Medical Biochemistry, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Fethi S. Cam
- Department of Medical Genetics, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
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99
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Wei SM, Eisenberg DP, Nabel KG, Kohn PD, Kippenhan JS, Dickinson D, Kolachana B, Berman KF. Brain-Derived Neurotrophic Factor Val66Met Polymorphism Affects the Relationship Between an Anxiety-Related Personality Trait and Resting Regional Cerebral Blood Flow. Cereb Cortex 2017; 27:2175-2182. [PMID: 27005989 DOI: 10.1093/cercor/bhw072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is an important modulator of constitutive stress responses mediated by limbic frontotemporal circuits, and its gene contains a functional polymorphism (Val66Met) that may influence trait stress sensitivity. Reports of an association of this polymorphism with anxiety-related personality traits have been controversial and without clear neurophysiological support. We, therefore, determined the relationship between resting regional cerebral blood flow (rCBF) and a well-validated measure of anxiety-related personality, the TPQ Harm Avoidance (HA) scale, as a function of BDNF Val66Met genotype. Sixty-four healthy participants of European ancestry underwent resting H215O positron emission tomography scans. For each genotype group separately, we first determined the relationship between participants' HA scores and their resting rCBF values in each voxel across the entire brain, and then directly compared these HA-rCBF relationships between Val66Met genotype groups. HA-rCBF relationships differed between Val homozygotes and Met carriers in several regions relevant to stress regulation: subgenual cingulate, orbital frontal cortex, and the hippocampal/parahippocampal region. In each of these areas, the relationship was positive in Val homozygotes and negative in Met carriers. These data demonstrate a coupling between trait anxiety and basal resting blood flow in frontolimbic neurocircuitry that may be determined in part by genetically mediated BDNF signaling.
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Affiliation(s)
- Shau-Ming Wei
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Daniel P Eisenberg
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Katherine G Nabel
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Philip D Kohn
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - J Shane Kippenhan
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Dwight Dickinson
- Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Bhaskar Kolachana
- Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
| | - Karen F Berman
- Section on Integrative Neuroimaging.,Clinical and Translational Neuroscience Branch, NIMH IRP, NIH, Bethesda, MD, USA
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100
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Jasińska KK, Molfese PJ, Kornilov SA, Mencl WE, Frost SJ, Lee M, Pugh KR, Grigorenko EL, Landi N. The BDNF Val 66Met polymorphism is associated with structural neuroanatomical differences in young children. Behav Brain Res 2017; 328:48-56. [PMID: 28359883 DOI: 10.1016/j.bbr.2017.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 02/05/2017] [Accepted: 03/07/2017] [Indexed: 01/31/2023]
Abstract
The brain-derived neurotrophic factor (BDNF) Val66Met single nucleotide polymorphism (SNP) has been associated with individual differences in brain structure and function, and cognition. Research on BDNF's influence on brain and cognition has largely been limited to adults, and little is known about the association of this gene, and specifically the Val66Met polymorphism, with developing brain structure and emerging cognitive functions in children. We performed a targeted genetic association analysis on cortical thickness, surface area, and subcortical volume in 78 children (ages 6-10) who were Val homozygotes (homozygous Val/Val carriers) or Met carriers (Val/Met, Met/Met) for the Val66Met locus using Atlas-based brain segmentation. We observed greater cortical thickness for Val homozygotes in regions supporting declarative memory systems (anterior temporal pole/entorhinal cortex), consistent with adult findings. Met carriers had greater surface area in the prefrontal and parietal cortices and greater cortical thickness in lateral occipital/parietal cortex in contrast to prior adult findings that may relate to performance on cognitive tasks supported by these regions in Met carriers. Finally, we found larger right hippocampal volume in Met carriers, although inconsistent with adult findings (generally reports larger volumes for Val homozygotes), is consistent with a recent finding in children. Gene expression levels vary across different brain regions and across development and our findings highlight the need to consider this developmental change in explorations of BDNF-brain relationships. The impact of the BDNF Val66Met polymorphism on the structure of the developing brain therefore reflects regionally-specific developmental changes in BDNF expression and cortical maturation trajectories.
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Affiliation(s)
- Kaja K Jasińska
- University of Delaware, Newark, DE, USA; Haskins Laboratories, New Haven, CT, USA.
| | - Peter J Molfese
- Haskins Laboratories, New Haven, CT, USA; University of Connecticut, Storrs, CT, USA
| | - Sergey A Kornilov
- Haskins Laboratories, New Haven, CT, USA; University of Houston, Houston, TX, USA; Baylor College of Medicine, Houston, TX, USA; Moscow State University, Moscow, Russian Federation; Saint-Petersburg State University, Saint-Petersburg, Russian Federation
| | - W Einar Mencl
- Haskins Laboratories, New Haven, CT, USA; Yale University, New Haven, CT, USA
| | | | | | - Kenneth R Pugh
- Haskins Laboratories, New Haven, CT, USA; University of Connecticut, Storrs, CT, USA; Yale University, New Haven, CT, USA
| | - Elena L Grigorenko
- Haskins Laboratories, New Haven, CT, USA; Yale University, New Haven, CT, USA; University of Houston, Houston, TX, USA; Baylor College of Medicine, Houston, TX, USA; Moscow State University, Moscow, Russian Federation; Saint-Petersburg State University, Saint-Petersburg, Russian Federation; Moscow State University for Psychology and Education, Moscow, Russian Federation
| | - Nicole Landi
- Haskins Laboratories, New Haven, CT, USA; University of Connecticut, Storrs, CT, USA; Yale University, New Haven, CT, USA
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