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Singh P, Srivastava A, Guin D, Thakran S, Yadav J, Chandna P, Sood M, Chadda RK, Kukreti R. Genetic Landscape of Major Depressive Disorder: Assessment of Potential Diagnostic and Antidepressant Response Markers. Int J Neuropsychopharmacol 2023; 26:692-738. [PMID: 36655406 PMCID: PMC10586057 DOI: 10.1093/ijnp/pyad001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 01/18/2023] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The clinical heterogeneity in major depressive disorder (MDD), variable treatment response, and conflicting findings limit the ability of genomics toward the discovery of evidence-based diagnosis and treatment regimen. This study attempts to curate all genetic association findings to evaluate potential variants for clinical translation. METHODS We systematically reviewed all candidates and genome-wide association studies for both MDD susceptibility and antidepressant response, independently, using MEDLINE, particularly to identify replicated findings. These variants were evaluated for functional consequences using different in silico tools and further estimated their diagnostic predictability by calculating positive predictive values. RESULTS A total of 217 significantly associated studies comprising 1200 variants across 545 genes and 128 studies including 921 variants across 412 genes were included with MDD susceptibility and antidepressant response, respectively. Although the majority of associations were confirmed by a single study, we identified 31 and 18 replicated variants (in at least 2 studies) for MDD and antidepressant response. Functional annotation of these 31 variants predicted 20% coding variants as deleterious/damaging and 80.6% variants with regulatory effect. Similarly, the response-related 18 variants revealed 25% coding variant as damaging and 88.2% with substantial regulatory potential. Finally, we could calculate the diagnostic predictability of 19 and 5 variants whose positive predictive values ranges from 0.49 to 0.66 for MDD and 0.36 to 0.66 for response. CONCLUSIONS The replicated variants presented in our data are promising for disease diagnosis and improved response outcomes. Although these quantitative assessment measures are solely directive of available observational evidence, robust homogenous validation studies are required to strengthen these variants for molecular diagnostic application.
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Affiliation(s)
- Priyanka Singh
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ankit Srivastava
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Debleena Guin
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Delhi, India
| | - Sarita Thakran
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Jyoti Yadav
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
| | - Puneet Chandna
- Indian Society of Colposcopy and Cervical Pathology (ISCCP), Safdarjung Hospital, New Delhi, India
| | - Mamta Sood
- Department of Psychiatry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Rakesh Kumar Chadda
- Department of Psychiatry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Ritushree Kukreti
- Genomics and Molecular Medicine Unit, Council of Scientific and Industrial Research (CSIR) - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Wang Y, Li O, Li N, Sha Z, Zhao Z, Xu J. Association between the BDNF Val66Met polymorphism and major depressive disorder: a systematic review and meta-analysis. Front Psychiatry 2023; 14:1143833. [PMID: 37415688 PMCID: PMC10321516 DOI: 10.3389/fpsyt.2023.1143833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 06/01/2023] [Indexed: 07/08/2023] Open
Abstract
Study objectives This meta-analysis analytically reviewed recent studies concerning the potential associations between the brain-derived neurotrophic factor (BDNF) Val66Met polymorphism and susceptibility to major depressive disorder (MDD), with subgroup analyses for race and age. Methods Relevant case-control studies were systematically searched for in PubMed, Embase, the Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang, and Sinomed databases. A total of 24 studies were finally identified to have reported outcomes including alleles, dominant genes, recessive genes, homozygosity, and heterozygosity. Subgroup meta-analyses were performed based on participant age and ethnicity. Publication bias was represented by funnel plots. All meta-analyses of the randomized controlled trials included for evaluation were performed using RevMan5.3 software. Results The findings revealed no significant association between BDNF Val66Met polymorphism and MDD. However, the Met allele was found to be associated with genetic susceptibility to MDD among white populations on subgroup analysis (OR = 1.25, 95% CI: 1.05-1.48, P = 0.01). In the genetic model, dominant (OR = 1.40, 95% CI: 1.18-1.66, P = 0.0001), recessive (OR = 1.70, 95% CI: 1.05-2.78, P = 0.03), and homozygous (OR = 1.77, 95% CI: 1.08-2.88, P = 0.02) genes were all associated with MDD. Conclusions Despite the outcome limitations, this meta-analysis confirmed that the BDNF Val66Met polymorphism is a susceptibility factor for MDD in white populations.
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Santos M, Lima L, Carvalho S, Mota-Pereira J, Pimentel P, Maia D, Correia D, Barroso MF, Gomes S, Cruz A, Medeiros R. The Impact of BDNF, NTRK2, NGFR, CREB1, GSK3B, AKT, MAPK1, MTOR, PTEN, ARC, and SYN1 Genetic Polymorphisms in Antidepressant Treatment Response Phenotypes. Int J Mol Sci 2023; 24:ijms24076758. [PMID: 37047730 PMCID: PMC10095078 DOI: 10.3390/ijms24076758] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
This study aimed to investigate the influence of genetic variants in neuroplasticity-related genes on antidepressant treatment phenotypes. The BDNF-TrkB signaling pathway, as well as the downstream kinases Akt and ERK and the mTOR pathway, have been implicated in depression and neuroplasticity. However, clinicians still struggle with the unpredictability of antidepressant responses in depressed patients. We genotyped 26 polymorphisms in BDNF, NTRK2, NGFR, CREB1, GSK3B, AKT, MAPK1, MTOR, PTEN, ARC, and SYN1 in 80 patients with major depressive disorder treated according to the Texas Medical Algorithm for 27 months at Hospital Magalhães Lemos, Porto, Portugal. Our results showed that BDNF rs6265, PTEN rs12569998, and SYN1 rs1142636 SNP were associated with treatment-resistant depression (TRD). Additionally, MAPK1 rs6928 and GSK3B rs6438552 gene polymorphisms were associated with relapse. Moreover, we found a link between the rs6928 MAPK1 polymorphism and time to relapse. These findings suggest that the BDNF, PTEN, and SYN1 genes may play a role in the development of TRD, while MAPK1 and GSK3B may be associated with relapse. GO analysis revealed enrichment in synaptic and trans-synaptic transmission pathways and glutamate receptor activity with TRD-associated genes. Genetic variants in these genes could potentially be incorporated into predictive models of antidepressant response.
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Affiliation(s)
- Marlene Santos
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal
- Molecular Oncology & Viral Pathology, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology, 4200-072 Porto, Portugal
| | - Luis Lima
- Experimental Pathology and Therapeutics Group, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology, 4200-072 Porto, Portugal
| | - Serafim Carvalho
- Hospital de Magalhães Lemos, 4149-003 Porto, Portugal
- Instituto Universitário de Ciências da Saúde, 4585-116 Gandra, Portugal
| | | | - Paulo Pimentel
- Trás-os-Montes e Alto Douro Hospital Centre, 5000-508 Vila Real, Portugal
| | - Dulce Maia
- Trás-os-Montes e Alto Douro Hospital Centre, 5000-508 Vila Real, Portugal
| | - Diana Correia
- Hospital de Magalhães Lemos, 4149-003 Porto, Portugal
| | - M. Fátima Barroso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, 4200-072 Porto, Portugal
| | - Sofia Gomes
- Hospital de Magalhães Lemos, 4149-003 Porto, Portugal
| | - Agostinho Cruz
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology & Viral Pathology, IPO-Porto Research Center (CI-IPOP), Portuguese Institute of Oncology, 4200-072 Porto, Portugal
- Research Department, Portuguese League Against Cancer (Norte), 4200-172 Porto, Portugal
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Abstract
OBJECTIVE A better understanding of the genetic, molecular and cellular mechanisms of brain-derived neurotrophic factor (BDNF) and its association with neuroplasticity could play a pivotal role in finding future therapeutic targets for novel drugs in major depressive disorder (MDD). Because there are conflicting results regarding the exact role of BDNF polymorphisms in MDD still, we set out to systematically review the current evidence regarding BDNF-related mutations in MDD. METHODS We conducted a keyword-guided search of the PubMed and Embase databases, using 'BDNF' or 'brain-derived neurotrophic factor' and 'major depressive disorder' and 'single-nucleotide polymorphism'. We included all publications in line with our exclusion and inclusion criteria that focused on BDNF-related mutations in the context of MDD. RESULTS Our search yielded 427 records in total. After screening and application of our eligibility criteria, 71 studies were included in final analysis. According to present overall scientific data, there is a possibly major pathophysiological role for BDNF neurotrophic systems to play in MDD. However, on the one hand, the synthesis of evidence makes clear that likely no overall association of BDNF-related mutations with MDD exists. On the other hand, it can be appreciated that solidifying evidence emerged on specific significant sub-conditions and stratifications based on various demographic, clinico-phenotypical and neuromorphological variables. CONCLUSIONS Further research should elucidate specific BDNF-MDD associations based on demographic, clinico-phenotypical and neuromorphological variables. Furthermore, biomarker approaches, specifically combinatory ones, involving BDNF should be further investigated.
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Xie X, Houtz J, Liao GY, Chen Y, Xu B. Genetic Val66Met BDNF Variant Increases Hyperphagia on Fat-rich Diets in Mice. Endocrinology 2023; 164:6984997. [PMID: 36631165 DOI: 10.1210/endocr/bqad008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
High prevalence of obesity is attributable in part to consumption of highly palatable, fat-rich foods. However, the mechanism controlling dietary fat intake is largely unknown. In this study we investigated the role of brain-derived neurotrophic factor (BDNF) in the control of dietary fat intake in a mouse model that mimics the common human Val-to-Met (Val66Met) polymorphism that impairs BDNF release via the regulated secretory pathway. BdnfMet/Met mice gained weight much faster than wild-type (WT) mice and developed severe obesity due to marked hyperphagia when they were fed HFD. Hyperphagia in these mice worsened when the fat content in their diet was increased. Conversely, mice lacking leptin exhibited similar hyperphagia on chow and HFD. When 2 diets were provided simultaneously, WT and BdnfMet/Met mice showed a comparable preference for the more palatable diet rich in either fat or sucrose, indicating that increased hyperphagia on fat-rich diets in BdnfMet/Met mice is not due to enhanced hedonic drive. In support of this interpretation, WT and BdnfMet/Met mice increased calorie intake to a similar extent during the first day after chow was switched to HFD; however, WT mice decreased HFD intake faster than BdnfMet/Met mice in subsequent days. Furthermore, we found that refeeding after fasting or nocturnal feeding with HFD activated TrkB more strongly than with chow in the hypothalamus of WT mice, whereas TrkB activation under these 2 conditions was greatly attenuated in BdnfMet/Met mice. These results indicate that satiety factors generated during HFD feeding induce BDNF release to suppress excess dietary fat intake.
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Affiliation(s)
- Xiangyang Xie
- Department of Neuroscience, UF Scripps Biomedical Research, University of Florida, Jupiter, Florida 33458, USA
| | - Jessica Houtz
- Department of Neuroscience, UF Scripps Biomedical Research, University of Florida, Jupiter, Florida 33458, USA
| | - Guey-Ying Liao
- Department of Neuroscience, UF Scripps Biomedical Research, University of Florida, Jupiter, Florida 33458, USA
| | - Yuting Chen
- Department of Neuroscience, UF Scripps Biomedical Research, University of Florida, Jupiter, Florida 33458, USA
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, Florida 33458, USA
| | - Baoji Xu
- Department of Neuroscience, UF Scripps Biomedical Research, University of Florida, Jupiter, Florida 33458, USA
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, Florida 33458, USA
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Genetics of antidepressant response and treatment-resistant depression. PROGRESS IN BRAIN RESEARCH 2023. [DOI: 10.1016/bs.pbr.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Haldar S, Roy S, Sen S, Dasgupta A, Ghosh S. Association of the Val66Met polymorphism of the BDNF gene and the deletional mutation of CYP2D6 gene with the prevalence and severity of depressive disorder in an Eastern Indian population. Indian J Psychiatry 2022; 64:269-276. [PMID: 35859549 PMCID: PMC9290417 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_541_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 02/06/2022] [Accepted: 03/01/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The Val66Met single nucleotide polymorphism (SNP) of the brain-derived growth factor (BDNF) and deletional mutation of the cytochrome P4502D6 (CYP2D6) have been reported to be linked to the etiology and severity of depressive disorders (DD) in a variable manner among different ethnicities and populations. AIMS The present study was aimed to find the relationship of mutational variations of these two neurotrophins with the severity of DD and their serum cortisol levels as a marker of the stress factor. METHODS In 104 drug-naïve newly diagnosed cases of DD and 106 control subjects, the severity of depression was assessed using the HAM-D score. Val66Met SNP of the BDNF was analyzed in them using restriction digestion of its polymerase chain reaction (PCR) product. CYP2D6 deletional variants were detected by the absence of their PCR products. Serum cortisol levels were measured by the enzyme-linked immunosorbent assay (ELISA) technique. RESULTS The Chi-square test (Χ2 = 1.42, P = 0.49) did not show any higher prevalence of Val66Met SNP of the BDNF gene in the case group. A correlation coefficient (R) of -0.14 for HAM-D score with a P value of 0.29 signified no direct link of the severity of DD with this SNP. However, a Χ2 of 12.68 with P < 0.001 indicated a significantly higher prevalence of the CYP2D6 deletional mutants in DD cases, whereas an R-value of 0.39 for HAM-D score with P < 0.001 suggested a significantly higher severity of DD having with them. Serum cortisol level showed a significant positive correlation with the deletional variants of CYP2D6 (R = 0.198, P = 0.04) and the HAM-D score (R = 0.22, P = 0.025). CONCLUSION We conclude that CYP2D6 deletion significantly contributes to the severity and stress factor in the DD patients in our study population. Early identification of these mutations may provide important molecular and cellular predisposition for the disease and may lay the ground for possible more effective measures of intervention.
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Affiliation(s)
- Somnath Haldar
- Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Suparna Roy
- Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Santanu Sen
- Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Anindya Dasgupta
- Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Srijit Ghosh
- Department of Psychiatry, Calcutta National Medical College, Kolkata, West Bengal, India
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Castrén E, Monteggia LM. Brain-Derived Neurotrophic Factor Signaling in Depression and Antidepressant Action. Biol Psychiatry 2021; 90:128-136. [PMID: 34053675 DOI: 10.1016/j.biopsych.2021.05.008] [Citation(s) in RCA: 176] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/19/2022]
Abstract
Neurotrophic factors, particularly BDNF (brain-derived neurotrophic factor), have been associated with depression and antidepressant drug action. A variety of preclinical and clinical studies have implicated impaired BDNF signaling through its receptor TrkB (neurotrophic receptor tyrosine kinase 2) in the pathophysiology of mood disorders, but many of the initial findings have not been fully supported by more recent meta-analyses, and more both basic and clinical research is needed. In contrast, increased expression and signaling of BDNF has been repeatedly implicated in the mechanisms of both typical and rapid-acting antidepressant drugs, and recent findings have started to elucidate the mechanisms through which antidepressants regulate BDNF signaling. BDNF is a critical regulator of various types of neuronal plasticities in the brain, and plasticity has increasingly been connected with antidepressant action. Although some equivocal data exist, the hypothesis of a connection between neurotrophic factors and neuronal plasticity with mood disorders and antidepressant action has recently been further strengthened by converging evidence from a variety of more recent data reviewed here.
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Affiliation(s)
- Eero Castrén
- Neuroscience Center, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.
| | - Lisa M Monteggia
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee; Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee.
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Jafari F, Mohammadi H, Amani R. The effect of zinc supplementation on brain derived neurotrophic factor: A meta-analysis. J Trace Elem Med Biol 2021; 66:126753. [PMID: 33831797 DOI: 10.1016/j.jtemb.2021.126753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/31/2021] [Accepted: 03/29/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Zinc in one of the most abundant trace minerals in human body which is involved in numerous biological pathways and has variety of roles in the nervous system. It has been assumed that zinc exerts its role in nervous system through increasing brain derived neurotrophic factor (BDNF) concentrations. OBJECTIVES Present meta-analysis was aimed to review the effect of zinc supplementation on serum concentrations of BDNF. METHODS AND MATERIALS Four electronic databases (Pubmed, Scopus, Web of Science, Embase) were searched for identifying studies that examined BDNF levels prior and after zinc supplementation up to May 2020. According to the Cochrane guideline, a meta-analysis was performed to pool the effect size estimate (Hedges' test) of serum BDNF across studies. Risk of publication bias was assessed using a funnel plot and Egger's test. RESULTS Five studies were eligible and 238 participants were included. These studies enrolled subjects with premenstrual syndrome, diabetic retinopathy, major depression disorder, overweight/obese and obese with mild to moderate depressive disorders. Zinc supplementation failed to increase blood BDNF concentrations with effect size of 0.30 (95 % CI: -0.08, 0.67, P = 0.119). Funnel plot did not suggest publication bias. CONCLUSION Zinc supplementation may not significantly increase BDNF levels. However, the small number of included articles and significant heterogeneity between them can increase the risk of a false negative result; therefore, the results should be interpreted with caution.
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Affiliation(s)
- Fatemeh Jafari
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hamed Mohammadi
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Reza Amani
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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Park JH, Lim SW, Myung W, Park I, Jang HJ, Kim S, Lee MS, Chang HS, Yum D, Suh YL, Kim JW, Kim DK. Whole-genome sequencing reveals KRTAP1-1 as a novel genetic variant associated with antidepressant treatment outcomes. Sci Rep 2021; 11:4552. [PMID: 33633223 PMCID: PMC7907209 DOI: 10.1038/s41598-021-83887-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/08/2021] [Indexed: 12/30/2022] Open
Abstract
Achieving remission following initial antidepressant therapy in patients with major depressive disorder (MDD) is an important clinical result. Making predictions based on genetic markers holds promise for improving the remission rate. However, genetic variants found in previous genetic studies do not provide robust evidence to aid pharmacogenetic decision-making in clinical settings. Thus, the objective of this study was to perform whole-genome sequencing (WGS) using genomic DNA to identify genetic variants associated with the treatment outcomes of selective serotonin reuptake inhibitors (SSRIs). We performed WGS on 100 patients with MDD who were treated with escitalopram (discovery set: 36 remitted and 64 non-remitted). The findings were applied to an additional 553 patients with MDD who were treated with SSRIs (replication set: 185 remitted and 368 non-remitted). A novel loss-of-function variant (rs3213755) in keratin-associated protein 1-1 (KRTAP1-1) was identified in this study. This rs3213755 variant was significantly associated with remission following antidepressant treatment (p = 0.0184, OR 3.09, 95% confidence interval [CI] 1.22-7.80 in the discovery set; p = 0.00269, OR 1.75, 95% CI 1.22-2.53 in the replication set). Moreover, the expression level of KRTAP1-1 in surgically resected human temporal lobe samples was significantly associated with the rs3213755 genotype. WGS studies on a larger sample size in various ethnic groups are needed to investigate genetic markers useful in the pharmacogenetic prediction of remission following antidepressant treatment.
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Affiliation(s)
- Jong-Ho Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea.,Clinical Genomics Center, Samsung Medical Center, Seoul, Korea
| | - Shinn-Won Lim
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Woojae Myung
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Inho Park
- Precision Medicine Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeok-Jae Jang
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Seonwoo Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Min-Soo Lee
- Department of Psychiatry, College of Medicine, Korea University, Seoul, Korea
| | - Hun Soo Chang
- Soonchunhyang Medical Institute, College of Medicine, Soonchunhyang University, Asan, Korea
| | - DongHo Yum
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yeon-Lim Suh
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong-Won Kim
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea. .,Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea.
| | - Doh Kwan Kim
- Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, Korea.
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Islam F, Gorbovskaya I, Müller DJ. Pharmacogenetic/Pharmacogenomic Tests for Treatment Prediction in Depression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1305:231-255. [PMID: 33834403 DOI: 10.1007/978-981-33-6044-0_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Genetic factors play a significant but complex role in antidepressant (AD) response and tolerability. During recent years, there is growing enthusiasm in the promise of pharmacogenetic/pharmacogenomic (PGx) tools for optimizing and personalizing treatment outcomes for patients with major depressive disorder (MDD). The influence of pharmacokinetic and pharmacodynamic genes on response and tolerability has been investigated, including those encoding the cytochrome P450 superfamily, P-glycoprotein, monoaminergic transporters and receptors, intracellular signal transduction pathways, and the stress hormone system. Genome-wide association studies are also identifying new genetic variants associated with AD response phenotypes, which, combined with methods such as polygenic risk scores (PRS), is opening up new avenues for novel personalized treatment approaches for MDD. This chapter describes the basic concepts in PGx of AD response, reviews the major pharmacokinetic and pharmacodynamic genes involved in AD outcome, discusses PRS as a promising approach for predicting AD efficacy and tolerability, and addresses key challenges to the development and application of PGx tests.
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Affiliation(s)
- Farhana Islam
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada
| | - Ilona Gorbovskaya
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Daniel J Müller
- Pharmacogenetics Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Canada.
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, ON, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Levchenko A, Vyalova NM, Nurgaliev T, Pozhidaev IV, Simutkin GG, Bokhan NA, Ivanova SA. NRG1, PIP4K2A, and HTR2C as Potential Candidate Biomarker Genes for Several Clinical Subphenotypes of Depression and Bipolar Disorder. Front Genet 2020; 11:936. [PMID: 33193575 PMCID: PMC7478333 DOI: 10.3389/fgene.2020.00936] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 07/27/2020] [Indexed: 12/20/2022] Open
Abstract
GSK3B, BDNF, NGF, NRG1, HTR2C, and PIP4K2A play important roles in molecular mechanisms of psychiatric disorders. GSK3B occupies a central position in these molecular mechanisms and is also modulated by psychotropic drugs. BDNF regulates a number of key aspects in neurodevelopment and synaptic plasticity. NGF exerts a trophic action and is implicated in cerebral alterations associated with psychiatric disorders. NRG1 is active in neural development, synaptic plasticity, and neurotransmission. HTR2C is another important psychopharmacological target. PIP4K2A catalyzes the phosphorylation of PI5P to form PIP2, the latter being implicated in various aspects of neuronal signal transduction. In the present study, the six genes were sequenced in a cohort of 19 patients with bipolar affective disorder, 41 patients with recurrent depressive disorder, and 55 patients with depressive episode. The study revealed a number of genetic variants associated with antidepressant treatment response, time to recurrence of episodes, and depression severity. Namely, alleles of rs35641374 and rs10508649 (NRG1 and PIP4K2A) may be prognostic biomarkers of time to recurrence of depressive and manic/mixed episodes among patients with bipolar affective disorder. Alleles of NC_000008.11:g.32614509_32614510del, rs61731109, and rs10508649 (also NRG1 and PIP4K2A) seem to be predictive biomarkers of response to pharmacological antidepressant treatment on the 28th day assessed by the HDRS-17 or CGI-I scale. In particular, the allele G of rs10508649 (PIP4K2A) may increase resistance to antidepressant treatment and be at the same time protective against recurrent manic/mixed episodes. These results support previous data indicating a biological link between resistance to antidepressant treatment and mania. Bioinformatic functional annotation of associated variants revealed possible impact for transcriptional regulation of PIP4K2A. In addition, the allele A of rs2248440 (HTR2C) may be a prognostic biomarker of depression severity. This allele decreases expression of the neighboring immune system gene IL13RA2 in the putamen according to the GTEx portal. The variant rs2248440 is near rs6318 (previously associated with depression and effects of psychotropic drugs) that is an eQTL for the same gene and tissue. Finally, the study points to several protein interactions relevant in the pathogenesis of mood disorders. Functional studies using cellular or animal models are warranted to support these results.
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Affiliation(s)
- Anastasia Levchenko
- Theodosius Dobzhansky Center for Genome Bioinformatics, Saint Petersburg State University, Saint Petersburg, Russia
| | - Natalia M Vyalova
- Tomsk National Research Medical Center, Mental Health Research Institute, Russian Academy of Sciences, Tomsk, Russia
| | - Timur Nurgaliev
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia
| | - Ivan V Pozhidaev
- Tomsk National Research Medical Center, Mental Health Research Institute, Russian Academy of Sciences, Tomsk, Russia
| | - German G Simutkin
- Tomsk National Research Medical Center, Mental Health Research Institute, Russian Academy of Sciences, Tomsk, Russia
| | - Nikolay A Bokhan
- Tomsk National Research Medical Center, Mental Health Research Institute, Russian Academy of Sciences, Tomsk, Russia.,National Research Tomsk State University, Tomsk, Russia.,Siberian State Medical University, Tomsk, Russia
| | - Svetlana A Ivanova
- Tomsk National Research Medical Center, Mental Health Research Institute, Russian Academy of Sciences, Tomsk, Russia.,Siberian State Medical University, Tomsk, Russia.,National Research Tomsk Polytechnic University, Tomsk, Russia
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Poon CH, Heng BC, Lim LW. New insights on brain-derived neurotrophic factor epigenetics: from depression to memory extinction. Ann N Y Acad Sci 2020; 1484:9-31. [PMID: 32808327 DOI: 10.1111/nyas.14458] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/21/2020] [Accepted: 07/14/2020] [Indexed: 12/14/2022]
Abstract
Advances in characterizing molecular profiles provide valuable insights and opportunities for deciphering the neuropathology of depression. Although abnormal brain-derived neurotrophic factor (BDNF) expression in depression has gained much support from preclinical and clinical research, how it mediates behavioral alterations in the depressed state remains largely obscure. Environmental factors contribute significantly to the onset of depression and produce robust epigenetic changes. Epigenetic regulation of BDNF, as one of the most characterized gene loci in epigenetics, has recently emerged as a target in research on memory and psychiatric disorders. Specifically, epigenetic alterations of BDNF exons are heavily involved in mediating memory functions and antidepressant effects. In this review, we discuss key research on stress-induced depression from both preclinical and clinical studies, which revealed that differential epigenetic regulation of specific BDNF exons is associated with depression pathophysiology. Considering that BDNF has a central role in depression, we argue that memory extinction, an adaptive response to fear exposure, is dependent on BDNF modulation and holds promise as a prospective target for alleviating or treating depression and anxiety disorders.
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Affiliation(s)
- Chi Him Poon
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Boon Chin Heng
- Peking University School of Stomatology, Beijing, China.,Department of Biological Sciences, Sunway University, Selangor, Malaysia
| | - Lee Wei Lim
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Department of Biological Sciences, Sunway University, Selangor, Malaysia
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14
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The capacity for acute exercise to modulate emotional memories: A review of findings and mechanisms. Neurosci Biobehav Rev 2019; 107:438-449. [DOI: 10.1016/j.neubiorev.2019.09.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 07/14/2019] [Accepted: 09/22/2019] [Indexed: 01/18/2023]
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15
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Citalopram in first episode schizophrenia: The DECIFER trial. Schizophr Res 2019; 208:331-337. [PMID: 30709746 DOI: 10.1016/j.schres.2019.01.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 01/18/2023]
Abstract
Antidepressants are frequently prescribed in first episode schizophrenia (FES) patients for negative symptoms or for subsyndromal depressive symptoms, but therapeutic benefit has not been established, despite evidence of efficacy in later-stage schizophrenia. We conducted a 52 week, placebo-controlled add-on trial of citalopram in patients with FES who did not meet criteria for major depression to determine whether maintenance therapy with citalopram would improve outcomes by preventing or improving negative and depressive symptoms. Primary outcomes were negative symptoms measured by the Scale for Assessment of Negative Symptoms and depressive symptoms measured by the Calgary Depression Scale for Schizophrenia; both were analyzed by an intent-to-treat, mixed effects, area-under-the-curve analysis to assess the cumulative effects of symptom improvement and symptom prevention over a one-year period. Ninety-five patients were randomized and 52 (54%) completed the trial. Negative symptoms were reduced with citalopram compared to placebo (p = .04); the effect size of citalopram versus placebo was 0.32 for participants with a duration of untreated psychosis (DUP) of <18 weeks (median split) and 0.52 with a DUP >18 weeks. Rates of new-onset depression did not differ between groups; improvement in depressive symptoms was greater with placebo than citalopram (p = .02). Sexual side effects were more common with citalopram, but overall treatment-emergent side effects were not increased compared to placebo. In conclusion, citalopram may reduce levels of negative symptoms, particularly in patients with longer DUP, but we found no evidence of benefit for subsyndromal depressive symptoms.
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Badamasi IM, Lye MS, Ibrahim N, Stanslas J. Genetic endophenotypes for insomnia of major depressive disorder and treatment-induced insomnia. J Neural Transm (Vienna) 2019; 126:711-722. [PMID: 31111219 DOI: 10.1007/s00702-019-02014-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 05/11/2019] [Indexed: 12/12/2022]
Abstract
Major depressive disorder (MDD) is primarily hinged on the presence of either low mood and/or anhedonia to previously pleasurable events for a minimum of 2 weeks. Other clinical features that characterize MDD include disturbances in sleep, appetite, concentration and thoughts. The combination of any/both of the primary MDD symptoms as well as any four of the other clinical features has been referred to as MDD. The challenge for replicating gene association findings with phenotypes of MDD as well as its treatment outcome is putatively due to stratification of MDD patients. Likelihood for replication of gene association findings is hypothesized with specificity in symptoms profile (homogenous clusters of symptom/individual symptoms) evaluated. The current review elucidates the genetic factors that have been associated with insomnia symptom of MDD phenotype, insomnia symptom as a constellation of neuro-vegetative cluster of MDD symptom, insomnia symptom of MDD as an individual entity and insomnia feature of treatment outcome. Homozygous CC genotype of 3111T/C, GSK3B-AT/TT genotype of rs33458 and haplotype of TPH1 218A/C were associated with insomnia symptom of MDD. Insomnia symptom of MDD was not resolved in patients with the A/A genotype of HTR2A-rs6311 when treated with SSRI. Homozygous short (SS) genotype-HTTLPR, GG genotype of HTR2A-rs6311 and CC genotype of HTR2A-rs6313 were associated with AD treatment-induced insomnia, while val/met genotype of BDNF-rs6265 and the TT genotype of GSK-3beta-rs5443 reduced it. Dearth of association studies may remain the bane for the identification of robust genetic endophenotypes in line with findings for genotypes of HTR2A-rs6311.
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Affiliation(s)
- Ibrahim Mohammed Badamasi
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Munn Sann Lye
- Department of Community Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Normala Ibrahim
- Department of Psychiatry, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.
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Systems Approach to Identify Common Genes and Pathways Associated with Response to Selective Serotonin Reuptake Inhibitors and Major Depression Risk. Int J Mol Sci 2019; 20:ijms20081993. [PMID: 31018568 PMCID: PMC6514561 DOI: 10.3390/ijms20081993] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/17/2019] [Accepted: 04/20/2019] [Indexed: 12/27/2022] Open
Abstract
Despite numerous studies on major depressive disorder (MDD) susceptibility, the precise underlying molecular mechanism has not been elucidated which restricts the development of etiology-based disease-modifying drug. Major depressive disorder treatment is still symptomatic and is the leading cause of (~30%) failure of the current antidepressant therapy. Here we comprehended the probable genes and pathways commonly associated with antidepressant response and MDD. A systematic review was conducted, and candidate genes/pathways associated with antidepressant response and MDD were identified using an integrative genetics approach. Initially, single nucleotide polymorphisms (SNPs)/genes found to be significantly associated with antidepressant response were systematically reviewed and retrieved from the candidate studies and genome-wide association studies (GWAS). Also, significant variations concerning MDD susceptibility were extracted from GWAS only. We found 245 (Set A) and 800 (Set B) significantly associated genes with antidepressant response and MDD, respectively. Further, gene set enrichment analysis revealed the top five co-occurring molecular pathways (p ≤ 0.05) among the two sets of genes: Cushing syndrome, Axon guidance, cAMP signaling pathway, Insulin secretion, and Glutamatergic synapse, wherein all show a very close relation to synaptic plasticity. Integrative analyses of candidate gene and genome-wide association studies would enable us to investigate the putative targets for the development of disease etiology-based antidepressant that might be more promising than current ones.
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Acute exercise-induced enhancement of fear inhibition is moderated by BDNF Val66Met polymorphism. Transl Psychiatry 2019; 9:131. [PMID: 30967530 PMCID: PMC6456490 DOI: 10.1038/s41398-019-0464-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 02/27/2019] [Accepted: 03/23/2019] [Indexed: 01/09/2023] Open
Abstract
Rodent research indicates that acute physical exercise facilitates fear learning and inhibition. Expression of brain-derived neurotrophic factor (BDNF) may moderate the memory enhancing effects of acute exercise. We assessed the role of acute exercise in modulating extinction retention in humans, and investigated the extent to which the BDNF polymorphism influenced extinction retention. Seventy non-clinical participants engaged in a differential fear potentiated startle paradigm involving conditioning and extinction followed by random assignment to either intense exercise (n = 35) or no exercise (n = 35). Extinction retention was assessed 24 h later. Saliva samples were collected to index BDNF genotype. Exercised participants displayed significantly lower fear 24 h later relative to non-exercised participants. Moderation analyses indicated that after controlling for gender, the BDNF Val66Met polymorphism moderated the relationship between exercise and fear recovery 24 h later, such that exercise was associated with greater fear recovery in individuals with the Met allele. These findings provide initial evidence that acute exercise can impact fear extinction in humans and this effect is reduced in Met-allele carriers. This finding accords with the role of BDNF in extinction learning, and has implications for augmenting exposure-based therapies for anxiety disorders.
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Screening of brain-derived neurotrophic factor (BDNF) single nucleotide polymorphisms and plasma BDNF levels among Malaysian major depressive disorder patients. PLoS One 2019; 14:e0211241. [PMID: 30677092 PMCID: PMC6345459 DOI: 10.1371/journal.pone.0211241] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/09/2019] [Indexed: 12/17/2022] Open
Abstract
Background Brain-derived neurotrophic factor (BDNF) is a neurotrophin found in abundance in brain regions such as the hippocampus, cortex, cerebellum and basal forebrain. It has been associated with the risk of susceptibility to major depressive disorder (MDD). This study aimed to determine the association of three BDNF variants (rs6265, rs1048218 and rs1048220) with Malaysian MDD patients. Methods The correlation of these variants to the plasma BDNF level among Malaysian MDD patients was assessed. A total of 300 cases and 300 matched controls recruited from four public hospitals within the Klang Valley of Selangor State, Malaysia and matched for age, sex and ethnicity were screened for BDNF rs6265, rs1048218 and rs1048220 using high resolution melting (HRM). Findings BDNF rs1048218 and BDNF rs1048220 were monomorphic and were excluded from further analysis. The distribution of the alleles and genotypes for BDNF rs6265 was in Hardy-Weinberg equilibrium for the controls (p = 0.13) but was in Hardy Weinberg disequilibrium for the cases (p = 0.011). Findings from this study indicated that having BDNF rs6265 in the Malaysian population increase the odds of developing MDD by 2.05 folds (95% CI = 1.48–3.65). Plasma from 206 cases and 206 controls were randomly selected to measure the BDNF level using enzyme-linked immunosorbent assay (ELISA). A significant decrease in the plasma BDNF level of the cases as compared to controls (p<0.0001) was observed. However, there was no evidence of the effect of the rs6265 genotypes on the BDNF level indicating a possible role of other factors in modulating the BDNF level that warrants further investigation. Conclusion The study indicated that having the BDNF rs6265 allele (A) increase the risk of developing MDD in the Malaysian population suggesting a possible role of BDNF in the etiology of the disorder.
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20
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Changes in neuroplasticity following early-life social adversities: the possible role of brain-derived neurotrophic factor. Pediatr Res 2019; 85:225-233. [PMID: 30341412 DOI: 10.1038/s41390-018-0205-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/01/2018] [Accepted: 10/04/2018] [Indexed: 02/06/2023]
Abstract
Social adversities experienced in childhood can have a profound impact on the developing brain, leading to the emergence of psychopathologies in adulthood. Despite the burden this places on both the individual and society, the neurobiological aspects mediating this transition remain unclear. Recent advances in preclinical and clinical research have begun examining neuroplasticity-the nervous system's ability to form adaptive changes in response to new experience-in the context of early-life vulnerability to social adversities and plasticity-related alterations following such traumatic events. A key mediator of plasticity-related molecular processes is the brain-derived neurotrophic factor (BDNF), which has also been implicated in various psychiatric disorders related to childhood social adversities. Preclinical and clinical data suggest early-life social adversities (ELSA) might be associated with accelerated maturation of social network circuitry, a possible ontogenic adaptation to the adverse environment. Neural plasticity decreases by adulthood, lessening the efficacy of treatment in ELSA-related psychiatric disorders. However, literature data suggest that by increasing BDNF/TrkB signalling through antidepressant treatment a juvenile-like plasticity state can be induced, which allows for reorganization of the social circuitry when guided by psychotherapy and surrounded by a safe and positive environment.
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21
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Voegeli G, Cléry-Melin ML, Ramoz N, Gorwood P. Progress in Elucidating Biomarkers of Antidepressant Pharmacological Treatment Response: A Systematic Review and Meta-analysis of the Last 15 Years. Drugs 2018; 77:1967-1986. [PMID: 29094313 DOI: 10.1007/s40265-017-0819-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Antidepressant drugs are widely prescribed, but response rates after 3 months are only around one-third, explaining the importance of the search of objectively measurable markers predicting positive treatment response. These markers are being developed in different fields, with different techniques, sample sizes, costs, and efficiency. It is therefore difficult to know which ones are the most promising. OBJECTIVE Our purpose was to compute comparable (i.e., standardized) effect sizes, at study level but also at marker level, in order to conclude on the efficacy of each technique used and all analyzed markers. METHODS We conducted a systematic search on the PubMed database to gather all articles published since 2000 using objectively measurable markers to predict antidepressant response from five domains, namely cognition, electrophysiology, imaging, genetics, and transcriptomics/proteomics/epigenetics. A manual screening of the abstracts and the reference lists of these articles completed the search process. RESULTS Executive functioning, theta activity in the rostral Anterior Cingular Cortex (rACC), and polysomnographic sleep measures could be considered as belonging to the best objectively measured markers, with a combined d around 1 and at least four positive studies. For inter-category comparisons, the approaches that showed the highest effect sizes are, in descending order, imaging (combined d between 0.703 and 1.353), electrophysiology (0.294-1.138), cognition (0.929-1.022), proteins/nucleotides (0.520-1.18), and genetics (0.021-0.515). CONCLUSION Markers of antidepressant treatment outcome are numerous, but with a discrepant level of accuracy. Many biomarkers and cognitions have sufficient predictive value (d ≥ 1) to be potentially useful for clinicians to predict outcome and personalize antidepressant treatment.
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Affiliation(s)
- G Voegeli
- CMME, Hôpital Sainte-Anne, Université Paris Descartes, 100 rue de la Santé, 75014, Paris, France.
- Centre de Psychiatrie et Neuroscience (INSERM UMR 894), 2 ter rue d'Alésia, 75014, Paris, France.
| | - M L Cléry-Melin
- CMME, Hôpital Sainte-Anne, Université Paris Descartes, 100 rue de la Santé, 75014, Paris, France
- Centre de Psychiatrie et Neuroscience (INSERM UMR 894), 2 ter rue d'Alésia, 75014, Paris, France
| | - N Ramoz
- CMME, Hôpital Sainte-Anne, Université Paris Descartes, 100 rue de la Santé, 75014, Paris, France
- Centre de Psychiatrie et Neuroscience (INSERM UMR 894), 2 ter rue d'Alésia, 75014, Paris, France
| | - P Gorwood
- CMME, Hôpital Sainte-Anne, Université Paris Descartes, 100 rue de la Santé, 75014, Paris, France
- Centre de Psychiatrie et Neuroscience (INSERM UMR 894), 2 ter rue d'Alésia, 75014, Paris, France
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Comparing a genetic and a psychological factor as correlates of anxiety, depression, and chronic stress in men with prostate cancer. Support Care Cancer 2018; 26:3195-3200. [DOI: 10.1007/s00520-018-4183-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 03/26/2018] [Indexed: 01/26/2023]
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23
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Lin M, Zhu J, Yuan Y, Ren L, Qian M, Shen Z, Shao Y, Shen X. Association Analysis of the Brain-Derived Neurotrophic Factor Gene Val66Met Polymorphism and Gender with Efficacy of Antidepressants in the Chinese Han Population with Generalized Anxiety Disorder. Genet Test Mol Biomarkers 2018; 22:199-206. [PMID: 29446659 DOI: 10.1089/gtmb.2017.0053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Min Lin
- Department of Clinical Psychology, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Jianying Zhu
- Department of Radiology, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Yonggui Yuan
- Department of Psychosomatics and Psychiatry, Affiliated ZhongDa Hospital of Southeast University, Nanjing, P.R. China
| | - Lie Ren
- Department of Neurosis and Psychosomatic Diseases, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Mincai Qian
- Department of Neurosis and Psychosomatic Diseases, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Zhongxia Shen
- Department of Neurosis and Psychosomatic Diseases, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Yongliang Shao
- Department of Radiology, Huzhou 3rd Hospital, Huzhou, P.R. China
| | - Xinhua Shen
- Department of Neurosis and Psychosomatic Diseases, Huzhou 3rd Hospital, Huzhou, P.R. China
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Song C, Liu BP, Zhang YP, Peng Z, Wang J, Collier AD, Echevarria DJ, Savelieva KV, Lawrence RF, Rex CS, Meshalkina DA, Kalueff AV. Modeling consequences of prolonged strong unpredictable stress in zebrafish: Complex effects on behavior and physiology. Prog Neuropsychopharmacol Biol Psychiatry 2018; 81:384-394. [PMID: 28847526 DOI: 10.1016/j.pnpbp.2017.08.021] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/17/2017] [Accepted: 08/19/2017] [Indexed: 12/12/2022]
Abstract
Chronic stress is the major pathogenetic factor of human anxiety and depression. Zebrafish (Danio rerio) have become a novel popular model species for neuroscience research and CNS drug discovery. The utility of zebrafish for mimicking human affective disorders is also rapidly growing. Here, we present a new zebrafish model of clinically relevant, prolonged unpredictable strong chronic stress (PUCS). The 5-week PUCS induced overt anxiety-like and motor retardation-like behaviors in adult zebrafish, also elevating whole-body cortisol and proinflammatory cytokines - interleukins IL-1β and IL-6. PUCS also elevated whole-body levels of the anti-inflammatory cytokine IL-10 and increased the density of dendritic spines in zebrafish telencephalic neurons. Chronic treatment of fish with an antidepressant fluoxetine (0.1mg/L for 8days) normalized their behavioral and endocrine phenotypes, as well as corrected stress-elevated IL-1β and IL-6 levels, similar to clinical and rodent data. The CNS expression of the bdnf gene, the two genes of its receptors (trkB, p75), and the gfap gene of glia biomarker, the glial fibrillary acidic protein, was unaltered in all three groups. However, PUCS elevated whole-body BDNF levels and the telencephalic dendritic spine density (which were corrected by fluoxetine), thereby somewhat differing from the effects of chronic stress in rodents. Together, these findings support zebrafish as a useful in-vivo model of chronic stress, also calling for further cross-species studies of both shared/overlapping and distinct neurobiological responses to chronic stress.
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Affiliation(s)
- Cai Song
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China; Graduate Institute of Neural and Cognitive Science, China Medical University and Hospital, Taichung 00001, Taiwan.
| | - Bai-Ping Liu
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China
| | - Yong-Ping Zhang
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China
| | - Zhilan Peng
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China
| | - JiaJia Wang
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China
| | - Adam D Collier
- ZENEREI Institute and the International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA 70458, USA
| | - David J Echevarria
- ZENEREI Institute and the International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA 70458, USA; Department of Psychology, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Katerina V Savelieva
- ZENEREI Institute and the International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA 70458, USA
| | - Robert F Lawrence
- Afraxis, Inc. 6605 Nancy Ridge Rd. Suite 224, San Diego, CA 92121, USA
| | - Christopher S Rex
- Afraxis, Inc. 6605 Nancy Ridge Rd. Suite 224, San Diego, CA 92121, USA
| | - Darya A Meshalkina
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg 3960002, Russia
| | - Allan V Kalueff
- Institute for Marine Drugs and Nutrition, Zhanjiang City Key Laboratory, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 3452001, Guangdong, China; ZENEREI Institute and the International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA 70458, USA; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg 3960002, Russia; Ural Federal University, Ekaterinburg 620002, Russia.
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Dose-Related Effects of Adjunctive Ketamine in Taiwanese Patients with Treatment-Resistant Depression. Neuropsychopharmacology 2017; 42:2482-2492. [PMID: 28492279 PMCID: PMC5686503 DOI: 10.1038/npp.2017.94] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/30/2017] [Accepted: 04/30/2017] [Indexed: 12/27/2022]
Abstract
The antidepressant effects of ketamine are thought to depend on brain-derived neurotrophic factor (BDNF) genotype and dose. The purpose of this study was to characterize the dose-related antidepressant effects of ketamine in patients with treatment-resistant depression drawn from a Chinese population predominately possessing lower activity BDNF genotypes (Val/Met, Met/Met). We conducted a double-blind, randomized, parallel-group, placebo-controlled trial of a single ketamine infusion (saline, 0.2 mg/kg, 0.5 mg/kg). Patients (N=71; BDNF genotype: Val/Val (N=12, 17%), Val/Met (N=40, 56.3%), and Met/Met (N=19, 26.8%)) received mood ratings before infusion, after infusion, and for the subsequent 14 days. Plasma ketamine levels and BDNF genotypes were assessed. This study found a significant dose-related ketamine effect on scores on the Hamilton Depression Rating Scale (HAMD). The responder analysis (>50% reduction from baseline HAMD on at least 2 days between days 2 and 5) also revealed a significant dose-related effect (saline: 12.5%, 0.2 mg/kg: 39.1%; 0.5 mg/kg: 45.8%). This is the first report to our knowledge to demonstrate the dose-related efficacy of R/S-ketamine for treatment-resistant depression and the first to characterize ketamine effects in a genotyped Chinese population in which most (83%) patients possessed at least one copy of the lower functioning Met allele of the BDNF gene.
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Niciu MJ, Iadarola ND, Banerjee D, Luckenbaugh DA, Park M, Lener M, Park L, Ionescu DF, Ballard ED, Brutsche NE, Akula N, McMahon FJ, Machado-Vieira R, Nugent AC, Zarate CA. The antidepressant efficacy of subanesthetic-dose ketamine does not correlate with baseline subcortical volumes in a replication sample with major depressive disorder. J Psychopharmacol 2017; 31:1570-1577. [PMID: 29039254 PMCID: PMC5863225 DOI: 10.1177/0269881117732514] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND This study sought to reproduce, in a larger sample, previous findings of a correlation between smaller raw 3-Tesla (3T) hippocampal volumes and improved antidepressant efficacy of ketamine in individuals with major depressive disorder (MDD). A secondary analysis stratified subjects according to functional BDNF rs6265 (val66met) genotype. METHODS Unmedicated subjects with treatment-resistant MDD ( n=55) underwent baseline structural 3T MRI. Data processing was conducted with FSL/FIRST and Freesurfer software. The amygdala, hippocampus, and thalamus were selected a priori for analysis. All subjects received a single 0.5mg/kg × 40-minute ketamine infusion. Pearson correlations were performed with subcortical volumes and percent change in MADRS score (from baseline to 230 minutes, 1 day, and 1 week post-infusion). RESULTS Raw and corrected subcortical volumes did not correlate with antidepressant response at any timepoint. In val/val subjects ( n=23), corrected left and right thalamic volume positively correlated with antidepressant response to ketamine at 230 minutes post-infusion but did not reach statistical significance. In met carriers ( n=14), corrected left and right thalamic volume negatively correlated with antidepressant response to ketamine. CONCLUSION Baseline subcortical volumes implicated in MDD did not correlate with ketamine's antidepressant efficacy. Baseline thalamic volume and BDNF genotype may be a combinatorial rapid antidepressant response biomarker.
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Affiliation(s)
- Mark J Niciu
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Nicolas D Iadarola
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Dipavo Banerjee
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - David A Luckenbaugh
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Minkyung Park
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Marc Lener
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Lawrence Park
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Dawn F Ionescu
- Depression Clinical and Research Program, Massachusetts General Hospital, Boston, USA
| | - Elizabeth D Ballard
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Nancy E Brutsche
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Nirmala Akula
- Human Genetics Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Francis J McMahon
- Human Genetics Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Rodrigo Machado-Vieira
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Allison C Nugent
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
| | - Carlos A Zarate
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
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Stoyanov D, Kandilarova S, Borgwardt S. Translational Functional Neuroimaging in the Explanation of Depression. Balkan Med J 2017; 34:493-503. [PMID: 29019461 PMCID: PMC5785653 DOI: 10.4274/balkanmedj.2017.1160] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Translation as a notion and procedure is deeply embodied in medical science and education. Translation includes the possibility to translate data across disciplines to improve diagnosis and treatment procedures. The evidence accumulated using translation serves as a vehicle for reification of medical diagnoses. There are promising, established post hoc correlations between the different types of clinical tools (interviews and inventories) and neuroscience. The various measures represent statistical correlations that must now be integrated into diagnostic standards and procedures but this, as a whole, is a step forward towards a better understanding of the mechanisms underlying psychopathology in general and depression in particular. Here, we focus on functional magnetic resonance imaging studies using a trans-disciplinary approach and attempt to establish bridges between the different fields. We will selectively highlight research areas such as imaging genetics, imaging immunology and multimodal imaging, as related to the diagnosis and management of depression.
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Affiliation(s)
- Drozdstoy Stoyanov
- Department of Psychiatry and Medical Psychology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Complex for Translational Neuroscience, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Sevdalina Kandilarova
- Department of Psychiatry and Medical Psychology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Complex for Translational Neuroscience, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Stefan Borgwardt
- Department of Psychiatry, University of Basel, Basel, Switzerland
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Park HC, Park S, Choi HY, Lee JE, Park HY, Kim SH, Ha SK, Seok JH. Association of Serotonin 1A Receptor Polymorphism with Variation in Health-Related Quality of Life in Korean Hemodialysis Patients. Psychiatry Investig 2017; 14:506-512. [PMID: 28845179 PMCID: PMC5561410 DOI: 10.4306/pi.2017.14.4.506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/01/2016] [Accepted: 06/22/2016] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Hemodialysis patients may have psychological distress and reduced quality of life (QoL) related to chronic physical health problems. Genetic polymorphisms associated with reduced QoL in hemodialysis patients. The aim of this study was to investigate the relationship between genetic polymorphisms and variation in health-related QoL in Korean hemodialysis patients. METHODS The 36-item Short-Form Health Survey and the Korean Hospital Anxiety and Depression Scale were used to assess health-related QoL and psychological distress, respectively. Twenty hundred and five clinically stable patients from 6 hemodialysis centers have participated with informed consents. Sociodemographic factors, clinical factors, and genotypes of serotonin 1A receptor, brain-derived neurotrophic factors, and glucocorticoid receptor were assessed. Independent t-tests, correlation analyses, multiple regression analyses were performed for statistical analyses. RESULTS The serotonin 1A receptor CC genotype group showed significantly higher physical and mental QoL levels than those with the GG/GC genotypes. In the final linear regression analysis, serotonin 1A receptor CC genotype was significantly associated with positive physical and mental QoL levels. CONCLUSION ConclusionaaSerotonin 1A receptor polymorphism, as well as age and depression, were significantly associated with mental and physical QoL in hemodialysis patients. Functional activity in the serotonin receptor system may have a modulating effect on health-related QoL in hemodialysis patients.
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Affiliation(s)
- Hyeong Cheon Park
- Department of Internal Medicine, Gangnam Severance Hospital, Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sunyoung Park
- Department of Psychiatry, Gangnam Severance Hospital, Institute for Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hoon Young Choi
- Department of Internal Medicine, Gangnam Severance Hospital, Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Eun Lee
- Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Hae Yeul Park
- Department of Internal Medicine, Gangnam Severance Hospital, Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seok-hyung Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung Kyu Ha
- Department of Internal Medicine, Gangnam Severance Hospital, Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Ho Seok
- Department of Psychiatry, Gangnam Severance Hospital, Institute for Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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29
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Tayyab M, Shahi MH, Farheen S, Mariyath MPM, Khanam N, Castresana JS, Hossain MM. Sonic hedgehog, Wnt, and brain-derived neurotrophic factor cell signaling pathway crosstalk: potential therapy for depression. J Neurosci Res 2017. [PMID: 28631844 DOI: 10.1002/jnr.24104] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There are various theories to explain the pathophysiology of depression and support its diagnosis and treatment. The roles of monoamines, brain-derived neurotrophic factor (BDNF), and Wnt signaling are well researched, but sonic hedgehog (Shh) signaling and its downstream transcription factor Gli1 are not well studied in depression. Shh signaling plays a fundamental role in embryonic development and adult hippocampal neurogenesis and also involved in the growth of cancer. In this article, we summarize the evidence for the Shh signaling pathway in depression and the potential crosstalk of Shh with Wnt and BDNF. Antidepressants are known to upregulate the adult hippocampal neurogenesis to treat depression. Shh plays an important role in adult hippocampal neurogenesis, and its downstream signaling components regulate the synthesis of Wnt proteins. Moreover, the expression of Gli1 and Smo is downregulated in depression. BDNF and Wnt signaling are also regulated by various available antidepressants, so there is the possibility that Shh may be involved in the pathophysiology of depression. Therefore, the crosstalk between the Shh, Wnt, and BDNF signaling pathways is being discussed to identify the potential targets. Specifically, the potential role of the Shh signaling pathway in depression is explored as a new target for better therapies for depression.
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Affiliation(s)
- Mohd Tayyab
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Mehdi H Shahi
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Shirin Farheen
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Mubeena P M Mariyath
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Nabeela Khanam
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Javier S Castresana
- Department of Biochemistry and Genetics, University of Navarra, Faculty of Sciences, Pamplona, Spain
| | - M Mobarak Hossain
- Interdisciplinary Brain Research Centre, Faculty of Medicine, Aligarh Muslim University, Aligarh, India.,Department of Physiology, JNMC, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
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AlOlaby RR, Sweha SR, Silva M, Durbin-Johnson B, Yrigollen CM, Pretto D, Hagerman RJ, Tassone F. Molecular biomarkers predictive of sertraline treatment response in young children with fragile X syndrome. Brain Dev 2017; 39:483-492. [PMID: 28242040 PMCID: PMC5420478 DOI: 10.1016/j.braindev.2017.01.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/26/2017] [Accepted: 01/27/2017] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Several neurotransmitters involved in brain development are altered in fragile X syndrome (FXS), the most common monogenic cause of autism spectrum disorder (ASD). Serotonin plays a vital role in synaptogenesis and postnatal brain development. Deficits in serotonin synthesis and abnormal neurogenesis were shown in young children with autism, suggesting that treating within the first years of life with a selective serotonin reuptake inhibitor might be the most effective time. In this study we aimed to identify molecular biomarkers involved in the serotonergic pathway that could predict the response to sertraline treatment in young children with FXS. METHODS Genotypes were determined for several genes involved in serotonergic pathway in 51 children with FXS, ages 24-72months. Correlations between genotypes and deviations from baseline in primary and secondary outcome measures were modeled using linear regression models. RESULTS A significant association was observed between a BDNF polymorphism and improvements for several clinical measures, including the Clinical Global Impression scale (P=0.008) and the cognitive T score (P=0.017) in those treated with sertraline compared to those in the placebo group. Additionally, polymorphisms in the MAOA, Cytochrome P450 2C19 and 2D6, and in the 5-HTTLPR gene showed a significant correlation with some of the secondary measures included in this study. CONCLUSION This study shows that polymorphisms of genes involved in the serotonergic pathway could play a potential role in predicting response to sertraline treatment in young children with FXS. Larger studies are warranted to confirm these initial findings.
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Affiliation(s)
- Reem Rafik AlOlaby
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA
| | - Stefan R Sweha
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA
| | - Marisol Silva
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA
| | - Blythe Durbin-Johnson
- Department of Biostatistics, University of California Davis, School of Medicine, Davis, CA, USA
| | - Carolyn M Yrigollen
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA
| | - Dalyir Pretto
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA
| | - Randi J Hagerman
- MIND Institute, University of California Davis Medical Center, Davis, CA, USA,Department of Pediatrics, University of California Davis, School of Medicine, Davis, CA, USA
| | - Flora Tassone
- Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA; MIND Institute, University of California Davis Medical Center, Davis, CA, USA.
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31
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Tatham EL, Hall GBC, Clark D, Foster J, Ramasubbu R. The 5-HTTLPR and BDNF polymorphisms moderate the association between uncinate fasciculus connectivity and antidepressants treatment response in major depression. Eur Arch Psychiatry Clin Neurosci 2017; 267:135-147. [PMID: 27277475 DOI: 10.1007/s00406-016-0702-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/23/2016] [Indexed: 12/13/2022]
Abstract
Symptom improvement in depression due to antidepressant treatment is highly variable and clinically unpredictable. Linking neuronal connectivity and genetic risk factors in predicting antidepressant response has clinical implications. Our investigation assessed whether indices of white matter integrity, serotonin transporter-linked polymorphism (5-HTTLPR) and brain-derived neurotrophic factor (BDNF) val66met polymorphism predicted magnitude of depression symptom change following antidepressant treatment. Fractional anisotropy (FA) was used as an indicator of white matter integrity and was assessed in the uncinate fasciculus and superior longitudinal fasciculus using tract-based spatial statistics (TBSS) and probabilistic tractography. Forty-six medication-free patients with major depressive disorder participated in a diffusion tensor imaging scan prior to completing an 8-week treatment regime with citalopram or quetiapine XR. Indexed improvements in Hamilton Depression Rating Scale score from baseline to 8-week endpoint were used as an indicator of depression improvement. Carriers of the BDNF met allele exhibited lower FA values in the left uncinate fasciculus relative to val/val individuals [F(1, 40) = 7.314, p = 0.009]. Probabilistic tractography identified that higher FA in the left uncinate fasciculus predicted percent change in depression severity, with BDNF moderating this association [F(3, 30) = 3.923, p = 0.018]. An interaction between FA in the right uncinate fasciculus and 5-HTTLPR also predicted percent change in depression severity [F(5, 25) = 5.315, p = 0.002]. Uncorrected TBSS results revealed significantly higher FA in hippocampal portions of the cingulum bundle in responders compared to non-responders (p = 0.016). The predictive value of prefrontal and amygdala/hippocampal WM connectivity on antidepressant treatment response may be influenced by 5-HTTLPR and BDNF polymorphisms in MDD.
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Affiliation(s)
- Erica L Tatham
- McMaster Integrative Neuroscience Discovery and Study, McMaster University, Hamilton, ON, Canada
| | - Geoff B C Hall
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada
| | - Darren Clark
- Department of Psychiatry and Clinical Neurosciences, Mathison Centre for Mental Health Research and Education, University of Calgary, TRW Building, Room 4D64, 3280 Hospital Drive NW, Calgary, AB, T2N4Z6, Canada
| | - Jane Foster
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Rajamannar Ramasubbu
- Department of Psychiatry and Clinical Neurosciences, Mathison Centre for Mental Health Research and Education, University of Calgary, TRW Building, Room 4D64, 3280 Hospital Drive NW, Calgary, AB, T2N4Z6, Canada.
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32
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Ye Q, Bai F, Zhang Z. Shared Genetic Risk Factors for Late-Life Depression and Alzheimer's Disease. J Alzheimers Dis 2017; 52:1-15. [PMID: 27060956 DOI: 10.3233/jad-151129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Considerable evidence has been reported for the comorbidity between late-life depression (LLD) and Alzheimer's disease (AD), both of which are very common in the general elderly population and represent a large burden on the health of the elderly. The pathophysiological mechanisms underlying the link between LLD and AD are poorly understood. Because both LLD and AD can be heritable and are influenced by multiple risk genes, shared genetic risk factors between LLD and AD may exist. OBJECTIVE The objective is to review the existing evidence for genetic risk factors that are common to LLD and AD and to outline the biological substrates proposed to mediate this association. METHODS A literature review was performed. RESULTS Genetic polymorphisms of brain-derived neurotrophic factor, apolipoprotein E, interleukin 1-beta, and methylenetetrahydrofolate reductase have been demonstrated to confer increased risk to both LLD and AD by studies examining either LLD or AD patients. These results contribute to the understanding of pathophysiological mechanisms that are common to both of these disorders, including deficits in nerve growth factors, inflammatory changes, and dysregulation mechanisms involving lipoprotein and folate. Other conflicting results have also been reviewed, and few studies have investigated the effects of the described polymorphisms on both LLD and AD. CONCLUSION The findings suggest that common genetic pathways may underlie LLD and AD comorbidity. Studies to evaluate the genetic relationship between LLD and AD may provide insights into the molecular mechanisms that trigger disease progression as the population ages.
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Nazree NE, Mohamed Z, Reynolds GP, Mohd Zain S, Masiran R, Sidi H, Chong LA, Hway AY, Adlan AS, Zainal NZ. Association of brain-derived neurotrophic factor valine to methionine polymorphism with sexual dysfunction following selective serotonin reuptake inhibitor treatment in female patients with major depressive disorder. Asia Pac Psychiatry 2016; 8:260-268. [PMID: 27787964 DOI: 10.1111/appy.12210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 07/24/2015] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The occurrence of female sexual dysfunction (FSD) in patients with major depressive disorder (MDD) receiving selective serotonin reuptake inhibitors (SSRIs) treatment gives negative impacts on patients' quality of life and causes treatment discontinuation. We aimed to investigate whether genetic polymorphism of identified candidate gene is associated with FSD in our study population. METHODS This is a cross-sectional study. A total of 95 female patients with MDD who met the criteria of the study were recruited and were specifically assessed on the sexual function by trained psychiatrists. Patients' DNA was genotyped for BDNF Val66Met polymorphism using real-time polymerase chain reaction. RESULTS The prevalence of FSD in this study is 31.6%. In the FSD group, patients with problematic marriage were significantly more frequent compared with patients who did not have problematic marriage (P = 0.009). Significant association was detected in the lubrication domain with BDNF Val66Met polymorphism (P = 0.030) using additive genetic model, with even stronger association when using the recessive model (P = 0.013). DISCUSSION This study suggested that there was no significant association between BDNF Val66Met with FSD. However, this polymorphism is significantly associated with lubrication disorder in patients treated with SSRIs.
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Affiliation(s)
- Nur Elia Nazree
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
| | - Zahurin Mohamed
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Gavin P Reynolds
- Biomedical Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Shamsul Mohd Zain
- Pharmacogenomics Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ruziana Masiran
- Department of Psychiatry, University Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
| | - Hatta Sidi
- Department of Psychiatry, University Kebangsaan Malaysia Medical Center, Kuala Lumpur, Malaysia
| | - Lu Ann Chong
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Anne Yee Hway
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Aida Syarinaz Adlan
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - Nor Zuraida Zainal
- Department of Psychological Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
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Wang JY, Wang XT, Wang LL, Jia CX. Association of Brain-Derived Neurotrophic Factor G196A and Attempted Suicide: A Case-Control Study in Rural China. Neuropsychobiology 2016; 72:91-6. [PMID: 26509996 DOI: 10.1159/000439352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 08/11/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Suicide is an important public problem, the mechanism of which has not been clarified. Many studies have focused on the molecular, biological and genetic mechanisms of suicide. Brain-derived neurotrophic factor (BDNF) G196A is one of the most leading loci in recent studies, but the results are inconsistent. METHODS We conducted a 1:1 age- and sex-matched case-control study in rural areas of Shandong Province, China. A total of 365 pairs of cases and controls were finally recruited into our study. The adjusted odds ratios (AORs) of BDNF 196G/G and their 95% confidence intervals (CIs) were calculated by multivariate conditional logistic regression models. RESULTS No association between BDNF polymorphisms and attempted suicide was found in the overall population. However, the BDNF 196G/G genotype was significantly related to attempted suicide in the elderly population (AOR = 7.85, 95% CI: 1.12-54.90, p = 0.038), while the associations were not significant in young and middle-aged groups. CONCLUSION Our study suggests that the BDNF 196G/G genotype increases the risk of attempted suicide in elderly people.
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Affiliation(s)
- Jin-Yu Wang
- Department of Epidemiology, Shandong University School of Public Health and Shandong University Center for Suicide Prevention Research, Jinan, China
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35
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Li M, Chang H, Xiao X. BDNF Val66Met polymorphism and bipolar disorder in European populations: A risk association in case-control, family-based and GWAS studies. Neurosci Biobehav Rev 2016; 68:218-233. [DOI: 10.1016/j.neubiorev.2016.05.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 05/11/2016] [Accepted: 05/24/2016] [Indexed: 01/15/2023]
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Kalueff AV, Stewart AM, Nguyen M, Song C, Gottesman II. Targeting drug sensitivity predictors: New potential strategies to improve pharmacotherapy of human brain disorders. Prog Neuropsychopharmacol Biol Psychiatry 2015; 63:76-82. [PMID: 25976211 DOI: 10.1016/j.pnpbp.2015.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/05/2015] [Accepted: 05/06/2015] [Indexed: 02/07/2023]
Abstract
One of the main challenges in medicine is the lack of efficient drug therapies for common human disorders. For example, although depressed patients receive powerful antidepressants, many often remain resistant to psychopharmacotherapy. The growing recognition of complex interplay between the drug targets and the predictors of drug sensitivity requires an improved understanding of these two key aspects of drug action and their potentially shared molecular networks. Here, we apply the concept of endophenotypes and their interplay to drug action and sensitivity. Based on these analyses, we postulate that novel drugs may be developed by targeting specific molecular pathways that integrate drug targets with drug sensitivity predictors.
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Affiliation(s)
- Allan V Kalueff
- Research Institute for Marine Drugs and Nutrition, College for Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524025, China; ZENEREI Institute, 309 Palmer Court, Slidell, LA 70458, USA; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, 199034, Russia.
| | | | - Michael Nguyen
- ZENEREI Institute, 309 Palmer Court, Slidell, LA 70458, USA
| | - Cai Song
- Research Institute for Marine Drugs and Nutrition, College for Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524025, China
| | - Irving I Gottesman
- Department of Psychology, University of Minnesota, Elliot Hall, Minneapolis, MN 55455, USA
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Pasi S, Singh PK, Pandey RK, Dikshit PC, Jiloha RC, Rao VR. Evaluation of psychiatric and genetic risk factors among primary relatives of suicide completers in Delhi NCR region, India. Psychiatry Res 2015. [PMID: 26205629 DOI: 10.1016/j.psychres.2015.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Suicide as a public health problem is studied worldwide and association of psychiatric and genetic risk factors for suicidal behavior are the point of discussion in studies across different ethnic groups. The present study is aimed at evaluating psychiatric and genetic traits among primary relatives of suicide completer families in an urban Indian population. Bi-variate analysis shows significant increase in major depression (PHQ and Hamilton), stress, panic disorder, somatoform disorder and suicide attemptamong primary compared to other relatives. Sib pair correlations also reveal significant results for major depression (Hamilton), stress, suicide attempt, intensity of suicide ideation and other anxiety syndrome. 5-HTTLPR, 5-HTT (Stin2) and COMT risk alleles are higher among primary relatives, though statistically insignificant. Backward conditional logistic regression analysis show only independent variable, Depression (Hamilton) made a unique statistically significant contribution to the model in primary relatives.
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Affiliation(s)
- Shivani Pasi
- Department of Anthropology, University of Delhi, Delhi, India
| | | | | | - P C Dikshit
- Department of Forensic Medicine, Moulana Azad Medical College, Delhi, India; Department of Forensic Medicine and Toxicology, Jamia Hamdard Institute of Medical Sciences & Research, New Delhi, India
| | - R C Jiloha
- Department of Psychiatry, G.B. Pant Hospital, Delhi, India
| | - V R Rao
- Department of Anthropology, University of Delhi, Delhi, India.
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38
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Affiliation(s)
- Mma F Yeebo
- Mma F. Yeebo, Honorary Assistant Psychologist, Community Adult Mental Health, Solent NHS Trust, Portsmouth, UK.
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Duclot F, Kabbaj M. Epigenetic mechanisms underlying the role of brain-derived neurotrophic factor in depression and response to antidepressants. ACTA ACUST UNITED AC 2015; 218:21-31. [PMID: 25568448 DOI: 10.1242/jeb.107086] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Major depressive disorder (MDD) is a devastating neuropsychiatric disorder encompassing a wide range of cognitive and emotional dysfunctions. The prevalence of MDD is expected to continue its growth to become the second leading cause of disease burden (after HIV) by 2030. Despite an extensive research effort, the exact etiology of MDD remains elusive and the diagnostics uncertain. Moreover, a marked inter-individual variability is observed in the vulnerability to develop depression, as well as in response to antidepressant treatment, for nearly 50% of patients. Although a genetic component accounts for some cases of MDD, it is now clearly established that MDD results from strong gene and environment interactions. Such interactions could be mediated by epigenetic mechanisms, defined as chromatin and DNA modifications that alter gene expression without changing the DNA structure itself. Some epigenetic mechanisms have recently emerged as particularly relevant molecular substrates, promoting vulnerability or resilience to the development of depressive-like symptoms. Although the role of brain-derived neurotrophic factor (BDNF) in the pathophysiology of MDD remains unclear, its modulation of the efficacy of antidepressants is clearly established. Therefore, in this review, we focus on the epigenetic mechanisms regulating the expression of BDNF in humans and in animal models of depression, and discuss their role in individual differences in vulnerability to depression and response to antidepressant drugs.
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Affiliation(s)
- Florian Duclot
- Department of Biomedical Sciences, Neuroscience Program, Florida State University, Tallahassee, FL 32306, USA
| | - Mohamed Kabbaj
- Department of Biomedical Sciences, Neuroscience Program, Florida State University, Tallahassee, FL 32306, USA
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A genome-wide association study of antidepressant response in Koreans. Transl Psychiatry 2015; 5:e633. [PMID: 26348319 PMCID: PMC5068817 DOI: 10.1038/tp.2015.127] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/20/2015] [Accepted: 07/08/2015] [Indexed: 12/11/2022] Open
Abstract
We conducted a three-stage genome-wide association study (GWAS) of response to antidepressant drugs in an ethnically homogeneous sample of Korean patients in untreated episodes of nonpsychotic unipolar depression, mostly of mature onset. Strict quality control was maintained in case selection, diagnosis, verification of adherence and outcome assessments. Analyzed cases completed 6 weeks of treatment with adequate plasma drug concentrations. The overall successful completion rate was 85.5%. Four candidate single-nucleotide polymorphisms (SNPs) on three chromosomes were identified by genome-wide search in the discovery sample of 481 patients who received one of four allowed selective serotonin reuptake inhibitor (SSRI) antidepressant drugs (Stage 1). In a focused replication study of 230 SSRI-treated patients, two of these four SNP candidates were confirmed (Stage 2). Analysis of the Stage 1 and Stage 2 samples combined (n = 711) revealed GWAS significance (P = 1.60 × 10(-8)) for these two SNP candidates, which were in perfect linkage disequilibrium. These two significant SNPs were confirmed also in a focused cross-replication study of 159 patients treated with the non-SSRI antidepressant drug mirtazapine (Stage 3). Analysis of the Stage 1, Stage 2 and Stage 3 samples combined (n = 870) also revealed GWAS significance for these two SNPs, which was sustained after controlling for gender, age, number of previous episodes, age at onset and baseline severity (P = 3.57 × 10(-8)). For each SNP, the response rate decreased (odds ratio=0.31, 95% confidence interval: 0.20-0.47) as a function of the number of minor alleles (non-response alleles). The two SNPs significantly associated with antidepressant response are rs7785360 and rs12698828 of the AUTS2 gene, located on chromosome 7 in 7q11.22. This gene has multiple known linkages to human psychological functions and neurobehavioral disorders. Rigorous replication efforts in other ethnic populations are recommended.
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Notaras M, Hill R, van den Buuse M. The BDNF gene Val66Met polymorphism as a modifier of psychiatric disorder susceptibility: progress and controversy. Mol Psychiatry 2015; 20:916-30. [PMID: 25824305 DOI: 10.1038/mp.2015.27] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/22/2014] [Accepted: 02/09/2015] [Indexed: 02/06/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) has a primary role in neuronal development, differentiation and plasticity in both the developing and adult brain. A single-nucleotide polymorphism in the proregion of BDNF, termed the Val66Met polymorphism, results in deficient subcellular translocation and activity-dependent secretion of BDNF, and has been associated with impaired neurocognitive function in healthy adults and in the incidence and clinical features of several psychiatric disorders. Research investigating the Val66Met polymorphism has increased markedly in the past decade, and a gap in integration exists between and within academic subfields interested in the effects of this variant. Here we comprehensively review the role and relevance of the Val66Met polymorphism in psychiatric disorders, with emphasis on suicidal behavior and anxiety, eating, mood and psychotic disorders. The cognitive and molecular neuroscience of the Val66Met polymorphism is also concisely reviewed to illustrate the effects of this genetic variant in healthy controls, and is complemented by a commentary on the behavioral neuroscience of BDNF and the Val66Met polymorphism where relevant to specific disorders. Lastly, a number of controversies and unresolved issues, including small effect sizes, sampling of allele inheritance but not genotype and putative ethnicity-specific effects of the Val66Met polymorphism, are also discussed to direct future research.
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Affiliation(s)
- M Notaras
- Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - R Hill
- Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - M van den Buuse
- 1] Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia [2] School of Psychological Science, La Trobe University, Melbourne, VIC, Australia
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Fabbri C, Serretti A. Pharmacogenetics of major depressive disorder: top genes and pathways toward clinical applications. Curr Psychiatry Rep 2015; 17:50. [PMID: 25980509 DOI: 10.1007/s11920-015-0594-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The pharmacogenetics of antidepressants has been not only a challenging but also frustrating research field since its birth in the 1990s. Indeed, great expectations followed the first evidence of familiar aggregation of antidepressant response. Despite the progress from candidate gene studies to genome-wide association studies (GWAS), results fell out the expectations and they were often inconsistent. Anyway, the cumulative evidence supports the involvement of some genes and molecular pathways in antidepressant efficacy. The best single genes are SLC6A4, HTR2A, BDNF, GNB3, FKBP5, ABCB1, and cytochrome P450 genes (CYP2D6 and CYP2C19). Molecular pathways involved in inflammation and neuroplasticity show the greatest support. The first studies evaluating benefits of genotype-guided antidepressant treatments provided encouraging results and confirmed the relevance of SLC6A4, HTR2A, ABCB1, and cytochrome P450 genes. Further progress in genotyping and data analysis would allow to move forward and complete the understanding of antidepressant pharmacogenetics and its translation into clinical applications.
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Affiliation(s)
- Chiara Fabbri
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Viale Carlo Pepoli 5, 40123, Bologna, Italy,
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Colle R, Deflesselle E, Martin S, David DJ, Hardy P, Taranu A, Falissard B, Verstuyft C, Corruble E. BDNF/TRKB/P75NTR polymorphisms and their consequences on antidepressant efficacy in depressed patients. Pharmacogenomics 2015; 16:997-1013. [PMID: 26122862 DOI: 10.2217/pgs.15.56] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We propose an extensive review of the literature about BDNF/TRKB/P75NTR polymorphisms and their consequences on antidepressant efficacy in depressed patients. Five genome-wide association studies and 30 association studies were included. Twenty seven studies focused on the Val66Met polymorphism (rs6265), the Met allele being associated with a higher antidepressant efficacy only in Asian patients. Other BDNF/TRKB/P75NTR polymorphisms (BDNF: rs7103411, rs7124442, rs908867, rs2049046, rs61888800, rs10501087, rs1491850; TRKB: rs10868223, rs11140778, rs1565445, rs1659412; P75NTR: rs2072446) were reported to be associated with antidepressant efficacy but these results were not replicated. Finally, there are 15 positive studies among 30 studies regarding BDNF/TRKB/P75NTR polymorphisms. The only SNP which benefits of at least three positive studies is the BDNF Val66Met polymorphism (rs6265). Consequently, with a lack of good and consistent studies, the clinical utility of BDNF in treatment selection is far from clear. We propose several recommendations for further studies.
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Affiliation(s)
- Romain Colle
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Eric Deflesselle
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Séverine Martin
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Denis J David
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Pharmacie Paris Sud, Châtenay-Malabry, France
| | - Patrick Hardy
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Adéla Taranu
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Bruno Falissard
- INSERM UMR 1178, Faculté de Médecine Paris Sud, Département de Biostatistiques, Hôpital Paul Brousse, Assistance Publique Hôpitaux de Paris, 94400 Villejuif, France
| | - Céline Verstuyft
- INSERM U1184 'Immunologie des maladies virales et auto-immunes' University Paris Sud, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre F-94275, France.,University Paris-Sud, INSERM U1184, 92296 Chatenay-Malabry Cedex, France
| | - Emmanuelle Corruble
- INSERM UMR 1178 Team 'Depression & Antidepressants', Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
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Association of 2 neurotrophic factor polymorphisms with efficacy of paroxetine in patients with major depressive disorder in a Chinese population. Ther Drug Monit 2015; 36:612-7. [PMID: 24577123 DOI: 10.1097/ftd.0000000000000062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND To evaluate the influence of the single nucleotide polymorphism (SNP) rs 6265 in the brain-derived neurotrophic factor (BDNF) gene and 21 SNPs of the glial cell line-derived neurotrophic factor (GDNF) gene on the efficacy of paroxetine in patients with major depressive disorder (MDD). METHODS Genotyping for BDNF and GDNF polymorphisms was performed in 298 patients with MDD who started 20 mg paroxetine per day and had their plasma concentrations measured after 6 weeks. The SNPs were selected from the HapMap Chinese ethnic group and literature reports. Changes in the severity of MDD were assessed with the Hamilton Depression Rating Scale (HAM-D) at baseline and at a 6-week follow-up. Paroxetine plasma concentration was measured using high-performance liquid chromatography with fluorescence detection. The Sequenom MassArray system was used for genotyping. RESULTS At the 6-week follow-up, 219 of the 298 patients (73.5%) were responders and 79 patients (26.5%) were nonresponders to paroxetine treatment. The lower threshold concentration of paroxetine for response was 50 ng/mL, and a linear relationship was found between paroxetine plasma concentration and clinical response. The allele types for the SNPs rs 6265 (P < 0.001), rs 2973049 (P = 0.005), and rs 2216711 (P = 0.006) demonstrated significant associations with paroxetine treatment remission at week 6. CONCLUSIONS Genetic variants in the BDNF and GDNF regions may be indicators of treatment response to paroxetine in patients with MDD.
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Kreinin A, Lisson S, Nesher E, Schneider J, Bergman J, Farhat K, Farah J, Lejbkowicz F, Yadid G, Raskin L, Koman I, Pinhasov A. Blood BDNF level is gender specific in severe depression. PLoS One 2015; 10:e0127643. [PMID: 26010085 PMCID: PMC4444333 DOI: 10.1371/journal.pone.0127643] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 04/16/2015] [Indexed: 12/02/2022] Open
Abstract
Though the role of brain derived neurotrophic factor (BDNF) as a marker for major depressive disorder (MDD) and antidepressant efficacy has been widely studied, the role of BDNF in distinct groups of patients remains unclear. We evaluated the diagnostic value of BDNF as a marker of disease severity measured by HAM-D scores and antidepressants efficacy among MDD patients. Fifty-one patients who met DSM-IV criteria for MDD and were prescribed antidepressants and 38 controls participated in this study. BDNF in serum was measured at baseline, 1st, 2nd and 8th treatment weeks. Depression severity was evaluated using the Hamilton Rating Scale for Depression (HAM-D). BDNF polymorphism rs6265 (val66met) was genotyped. We found a positive correlation between blood BDNF levels and severity of depression only among untreated women with severe MDD (HAM-D>24). Serum BDNF levels were lower in untreated MDD patients compared to control group. Antidepressants increased serum BDNF levels and reduced between-group differences after two weeks of treatment. No correlations were observed between BDNF polymorphism, depression severity, duration of illness, age and BDNF serum levels. Further supporting the role of BDNF in the pathology and treatment of MDD, we suggest that it should not be used as a universal biomarker for diagnosis of MDD in the general population. However, it has diagnostic value for the assessment of disease progression and treatment efficacy in individual patients.
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Affiliation(s)
- Anatoly Kreinin
- Maale HaCarmel Mental Health Center, Tirat HaCarmel, affiliated to Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
- Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
| | - Serah Lisson
- Department of Molecular Biology, Ariel University, Ariel, Israel
- Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Elimelech Nesher
- Department of Molecular Biology, Ariel University, Ariel, Israel
| | - Jenny Schneider
- Department of Molecular Biology, Ariel University, Ariel, Israel
| | - Josef Bergman
- Maale HaCarmel Mental Health Center, Tirat HaCarmel, affiliated to Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
- Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
| | - Kamal Farhat
- The Nazareth Hospital, EMMS, affiliated with Faculty of Medicine, Bar Ilan University, Nazareth, Israel
| | - Joseph Farah
- The Nazareth Hospital, EMMS, affiliated with Faculty of Medicine, Bar Ilan University, Nazareth, Israel
| | - Flavio Lejbkowicz
- Department of Community Medicine and Epidemiology, Carmel Medical Center, Haifa, Israel
- Clalit Health Services, National Cancer Control Center, Haifa, Israel
| | - Gal Yadid
- Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Leon Raskin
- Division of Epidemiology, Department of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Igor Koman
- Department of Molecular Biology, Ariel University, Ariel, Israel
| | - Albert Pinhasov
- Department of Molecular Biology, Ariel University, Ariel, Israel
- * E-mail:
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Harrisberger F, Smieskova R, Schmidt A, Lenz C, Walter A, Wittfeld K, Grabe HJ, Lang UE, Fusar-Poli P, Borgwardt S. BDNF Val66Met polymorphism and hippocampal volume in neuropsychiatric disorders: A systematic review and meta-analysis. Neurosci Biobehav Rev 2015; 55:107-18. [PMID: 25956254 DOI: 10.1016/j.neubiorev.2015.04.017] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 04/15/2015] [Accepted: 04/25/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is a neurotrophin involved in neurogenesis and synaptic plasticity in the central nervous system, especially in the hippocampus, and has been implicated in the pathophysiology of several neuropsychiatric disorders. Its Val66Met polymorphism (refSNP Cluster Report: rs6265) is a functionally relevant single nucleotide polymorphism affecting the secretion of BDNF and is implicated in differences in hippocampal volumes. METHODS This is a systematic meta-analytical review of findings from imaging genetic studies on the impact of the rs6265 SNP on hippocampal volumes in neuropsychiatric patients with major depressive disorder, anxiety, bipolar disorder or schizophrenia. RESULTS The overall sample size of 18 independent clinical cohorts comprised 1695 patients. Our results indicated no significant association of left (Hedge's g=0.08, p=0.12), right (g=0.07, p=0.22) or bilateral (g=0.07, p=0.16) hippocampal volumes with BDNF rs6265 in neuropsychiatric patients. There was no evidence for a publication bias or any demographic, clinical, or methodological moderating effects. Both Val/Val homozygotes (g=0.32, p=0.004) and Met-carriers (g=0.20, p=0.004) from the patient sample had significantly smaller hippocampal volumes than the healthy control sample with the same allele. The magnitude of these effects did not differ between the two genotypes. CONCLUSION This meta-analysis suggests that there is no association between this BDNF polymorphism and hippocampal volumes. For each BDNF genotype, the hippocampal volumes were significantly lower in neuropsychiatric patients than in healthy controls.
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Affiliation(s)
- F Harrisberger
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - R Smieskova
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - A Schmidt
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - C Lenz
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - A Walter
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - K Wittfeld
- German Centre for Neurodegenerative Diseases (DZNE), Rostock/Greifswald, Germany
| | - H J Grabe
- German Centre for Neurodegenerative Diseases (DZNE), Rostock/Greifswald, Germany; Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Helios Hospital Stralsund, Stralsund, Germany
| | - U E Lang
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - P Fusar-Poli
- King's College London, Department of Psychosis Studies, Institute of Psychiatry Psychology and Neuroscience, De Crespigny Park 16, SE58AF London, UK; OASIS Prodromal Team SLaM NHS Foundation Trust, London, UK
| | - S Borgwardt
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland; King's College London, Department of Psychosis Studies, Institute of Psychiatry Psychology and Neuroscience, De Crespigny Park 16, SE58AF London, UK.
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Míguez-Burbano MJ, Espinoza L, Whitehead NE, Bryant VE, Vargas M, Cook RL, Quiros C, Lewis JE, Deshratan A. Brain derived neurotrophic factor and cognitive status: the delicate balance among people living with HIV, with and without alcohol abuse. Curr HIV Res 2015; 12:254-64. [PMID: 25053366 DOI: 10.2174/1570162x12666140721121238] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 04/07/2014] [Accepted: 04/07/2014] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The advent of combination antiretroviral therapy(cART) has lead to a significant reduction in morbidity and mortality among people living with HIV(PLWH). However, HIV-associated neurocognitive disorders (HAND) still remain a significant problem. One possible mechanism for the persistence of these disorders is through the effect of HIV on brain-derived neurotrophic factor (BDNF). BDNF is influenced by various factors including hazardous alcohol use (HAU), which is prevalent among PLWH. This study attempts to elucidate the relationships between HAU, BDNF and HAND. METHODS Cross-sectional analyses were conducted on a sample of 199 hazardous alcohol users and 198 non-HAU living with HIV. Members of each group were matched according to sociodemographic characteristics and CD4 count. Research procedures included validated questionnaires, neuropsychological assessments and a blood sample to obtain BDNF and immune measurements. RESULTS Hazardous alcohol users showed either significantly lower or significantly higher BDNF levels compared to the Non-hazardous (OR=1,4; 95% CI: 1-2.1, p = 0.003). Therefore, for additional analyses, subjects were categorized based on BDNF values in: Group 1 < 4000, Group 2: 4001-7,999 (reference group), and Group 3 for those >8,000 pg/mL. Groups 1 and 3 performed significantly worse than those in Group 2 in the domains of processing speed, auditory-verbal and visuospatial learning and memory. Multivariate analyses confirmed that HAU and BDNF are significant contributors of HAND. CONCLUSION Our findings offer novel insights into the relationships between BDNF, and alcohol use among PLWH. Our results also lend support to expanding clinical movement to use BDNF as an intervention target for PLWH, in those with evidence of deficiencies, and highlight the importance of including HAUat the inception of clinical trials.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Asthana Deshratan
- School of Integrated Science and Humanity, Florida International University, Miami, FL, USA.
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Colle R, Gressier F, Verstuyft C, Deflesselle E, Lépine JP, Ferreri F, Hardy P, Guilloux JP, Petit AC, Fève B, Falissard B, Becquemont L, Corruble E. Brain-derived neurotrophic factor Val66Met polymorphism and 6-month antidepressant remission in depressed Caucasian patients. J Affect Disord 2015; 175:233-40. [PMID: 25658497 DOI: 10.1016/j.jad.2015.01.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 10/24/2022]
Abstract
BACKGROUND Whether the Brain Derived Neurotrophic Factor (BDNF) Val66Met polymorphism can predict antidepressant drug efficacy in depressed patients remains unclear, suggesting that it may depend on antidepressant classes. We assessed the impact of Val66Met polymorphism on antidepressant response and remission depending on antidepressant classes. METHODS In a 6-month prospective, real-world setting, treatment study, 345 Caucasian depressed patients requiring a new or different drug treatment with a selective serotonin reuptake inhibitor (SSRI), a serotonin and noradrenalin reuptake inhibitor (SNRI) or a tricyclic antidepressant (TCA), were genotyped and assessed for response and remission. RESULTS 231 (67%) patients were homozygous for the Val66 allele (Val/Val) and 114 (33%) were carriers of Met allele (Met). 152 (44.1%) patients were treated with SSRI, the others with SNRI/TCA. Both response and remission were explained by interactions between the Val66Met polymorphism and antidepressant drug classes (multivariate models adjusted for propensity-scores: p=0.02 and p=0.03 respectively). With SSRI, Val/Val patients had a higher response rate 3 months post-treatment than Met patients (68.1% versus 44%; adjusted-OR: 3.04, IC95% [1.05; 9.37], p=0.04). With SNRI/TCA, Val/Val patients had a lower remission rate 6 months post-treatment than Met patients (33.3% versus 60.9%, adjusted-OR: 0.27, IC95% [0.09; 0.76], p=0.02). LIMITATIONS Limited sample size. CONCLUSIONS This study argues for a personalized prescription of antidepressants in Caucasian patients with major depressive disorder, based on the BDNF Val66Met polymorphism: SSRI should be preferred for Val/Val patients and SNRI/TCA for Met patients. Further studies are required to confirm these data.
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Affiliation(s)
- Romain Colle
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France.
| | - Florence Gressier
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Céline Verstuyft
- INSERM U1184 «Immunologie des maladies virales et auto-immunes» Univ Paris Sud, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre F-94275, France; Univ Paris-Sud, INSERM U1184, 92296 Chatenay-Malabry Cedex, France
| | - Eric Deflesselle
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Jean-Pierre Lépine
- Université Paris Diderot, Hôpital Saint-Louis Lariboisière Fernand Widal, Assistance Publique Hôpitaux de Paris, INSERM UMR-S1144, 200 rue du Faubourg Saint Denis, F-75475 Paris Cedex 10, France
| | - Florian Ferreri
- UPMC Univ Paris 06, Service de Psychiatrie, Hôpital Saint-Antoine, Assistance Publique Hôpitaux de Paris, 184 rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Patrick Hardy
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Jean-Philippe Guilloux
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Pharmacie Paris Sud, Châtenay-Malabry, France
| | - Anne-Cécile Petit
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
| | - Bruno Fève
- INSERM UMR S938, UPMC Univ Paris 06, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique Hôpitaux de Paris, 184 rue du Faubourg Saint-Antoine, F75012 Paris, France
| | - Bruno Falissard
- INSERM UMR 1178, Faculté de Médecine Paris Sud, Département de Biostatistiques, Hôpital Paul Brousse, Assistance Publique Hôpitaux de Paris, 94400 Villejuif, France
| | - Laurent Becquemont
- INSERM U1184 «Immunologie des maladies virales et auto-immunes» Univ Paris Sud, Service de Génétique moléculaire, Pharmacogénétique et Hormonologie, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre F-94275, France; Univ Paris-Sud, INSERM U1184, 92296 Chatenay-Malabry Cedex, France
| | - Emmanuelle Corruble
- INSERM U1178 Team «Depression and Antidepressants», Faculté de Médecine Paris Sud, Service de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, 94275 Le Kremlin Bicêtre, France
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El-Hage W, Vourc'h P, Gaillard P, Léger J, Belzung C, Ibarguen-Vargas Y, Andres CR, Camus V. The BDNF Val(66)Met polymorphism is associated with escitalopram response in depressed patients. Psychopharmacology (Berl) 2015; 232:575-81. [PMID: 25074447 DOI: 10.1007/s00213-014-3694-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 07/12/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND The brain-derived neurotrophic factor (BDNF) gene is a candidate gene in therapeutic responses to antidepressants. The aim of the study was to determine the effects of BDNF allelic variability on responses to escitalopram treatment at 3 weeks after treatment initiation and at a 6-week endpoint. METHODS We included 187 Caucasian subjects with depression; 153 completed the 6-week study. Clinical evaluation was performed using the Montgomery and Asberg Depression Rating Scale (MADRS) before and after 3-6 weeks of treatment. RESULTS After 3 weeks of treatment, we saw significantly better treatment responses in the Met carriers and greater antidepressant resistance among the Val/Val homozygotes. Relative to Val/Val homozygous (59.78 %), a significantly greater proportion of subjects Met-carriers (77.94 %) responded to escitalopram treatment (χ (2) = 5.88, p = 0.015). After 6 weeks, we found the same pattern of results but this effect did not reach statistical significance (χ (2) = 2.07, p = 0.15). CONCLUSION These findings highlight a significant association between the BDNF valine to methionine substitution (Val(66)Met) polymorphism and the treatment response to escitalopram in a Caucasian population of severely depressed inpatients.
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Affiliation(s)
- Wissam El-Hage
- Clinique Psychiatrique Universitaire, Centre Expert Dépression Résistante, Fondation FondaMental, CHRU de Tours, 37044, Tours Cedex 9, France,
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Ivanets NN, Tikhonova YG, Kinkulkina MA, Avdeeva TI. Current state and potential of pharmacogenetic studies in the treatment of depression. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:113-121. [DOI: 10.17116/jnevro201511531113-121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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