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Vasudevan, Nur Afiqah, Mohd Nazil, Wan Aliaa WS, Liyana Najwa IM, Mohd Hazmi, Siew Mooi, Abdul Hanif Khan YK, Hamidon, Pannerselvam, Suganthi, Narenkumar. Genetic Susceptibility Variants of Vascular Dementia among Asians: A Systematic Review and Meta-Analysis. Dement Geriatr Cogn Disord 2024; 53:200-216. [PMID: 38636474 DOI: 10.1159/000538864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
INTRODUCTION Vascular dementia (VaD), a neurocognitive impairment directly related to vascular injury, is the second most common cause of age-related dementia. Although numerous studies have investigated candidate genetic polymorphisms associated with VaD in Asia, the genetics of VaD remains unclear. METHODS This review provides an updated meta-analysis of genetic polymorphisms associated with VaD in Asians, using the PRISMA guidelines. Published literature up to May 2021 was extracted from the PubMed, Scopus, Ovid, and EBSCOhost databases. Meta-analysis was conducted using the Open Meta analyst, Review Manager, and MedCalc® Statistical Software. Trial sequential analysis (TSA) was performed using TSA viewer software. RESULTS A total of 46 eligible studies, comprising 23 genes and 35 single nucleotide polymorphisms, were retrieved. The meta-analysis was conducted on the following genetic polymorphisms, APOE ε2/3/4, MTHFR rs1801131, ACE rs4340 (I/D) gene polymorphism, and a PSEN1 intron 8 variant. The pooled odds ratio (ORs) revealed a significant increase in the risk of VaD in the apolipoprotein E (APOE) ε4 allelic model (OR, 1.79, p < 0.001), and the methylenetetrahydrofolate reductase (MTHFR) rs1801133 polymorphism T allele in the allelic model (OR, 1.23, p = 0.013). CONCLUSION Our findings provide evidence that genetic polymorphisms of the APOE ε4 allele and MTHFR rs1801133 T allele increase the risk of developing VaD in Asians. However, future large-scale investigations examining particularly on South-Eastern and West-Asian populations are highly recommended.
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Affiliation(s)
- Vasudevan
- Department of Medical Science, Faculty of Health Sciences, University College of MAIWP International, Kuala Lumpur, Malaysia
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang, Malaysia
| | - Nur Afiqah
- Centre for Foundation Studies, Lincoln University College, Petaling Jaya, Malaysia
| | - Mohd Nazil
- Department of Medical Science, Faculty of Health Sciences, University College of MAIWP International, Kuala Lumpur, Malaysia
| | - W S Wan Aliaa
- Department of Neurology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - I M Liyana Najwa
- Department of Neurology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Mohd Hazmi
- Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Siew Mooi
- Department of Family Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Y K Abdul Hanif Khan
- Department of Neurology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Hamidon
- Department of Neurology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Pannerselvam
- Department of Physiology, Vinayaka Mission's Research Foundation, Salem, India
| | - Suganthi
- Department of Physiology, Vinayaka Mission's Kirupanada Variar Medical College and Hospital, Salem, India
| | - Narenkumar
- Department of Environmental and Water Resources Engineering, School of Civil Engineering (SCE), Vellore Institute of Technology, Vellore, India
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Lagunin AA, Ivanov SM, Gloriozova TA, Pogodin PV, Filimonov DA, Kumar S, Goel RK. Combined network pharmacology and virtual reverse pharmacology approaches for identification of potential targets to treat vascular dementia. Sci Rep 2020; 10:257. [PMID: 31937840 PMCID: PMC6959222 DOI: 10.1038/s41598-019-57199-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 12/21/2019] [Indexed: 02/07/2023] Open
Abstract
Dementia is a major cause of disability and dependency among older people. If the lives of people with dementia are to be improved, research and its translation into druggable target are crucial. Ancient systems of healthcare (Ayurveda, Siddha, Unani and Sowa-Rigpa) have been used from centuries for the treatment vascular diseases and dementia. This traditional knowledge can be transformed into novel targets through robust interplay of network pharmacology (NetP) with reverse pharmacology (RevP), without ignoring cutting edge biomedical data. This work demonstrates interaction between recent and traditional data, and aimed at selection of most promising targets for guiding wet lab validations. PROTEOME, DisGeNE, DISEASES and DrugBank databases were used for selection of genes associated with pathogenesis and treatment of vascular dementia (VaD). The selection of new potential drug targets was made by methods of NetP (DIAMOnD algorithm, enrichment analysis of KEGG pathways and biological processes of Gene Ontology) and manual expert analysis. The structures of 1976 phytomolecules from the 573 Indian medicinal plants traditionally used for the treatment of dementia and vascular diseases were used for computational estimation of their interactions with new predicted VaD-related drug targets by RevP approach based on PASS (Prediction of Activity Spectra for Substances) software. We found 147 known genes associated with vascular dementia based on the analysis of the databases with gene-disease associations. Six hundred novel targets were selected by NetP methods based on 147 gene associations. The analysis of the predicted interactions between 1976 phytomolecules and 600 NetP predicted targets leaded to the selection of 10 potential drug targets for the treatment of VaD. The translational value of these targets is discussed herewith. Twenty four drugs interacting with 10 selected targets were identified from DrugBank. These drugs have not been yet studied for the treatment of VaD and may be investigated in this field for their repositioning. The relation between inhibition of two selected targets (GSK-3, PTP1B) and the treatment of VaD was confirmed by the experimental studies on animals and reported separately in our recent publications.
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Affiliation(s)
- Alexey A Lagunin
- Pirogov Russian National Research Medical University, Department of Bioinformatics, Moscow, 117997, Russia.
- Institute of Biomedical Chemistry, Department of Bioinformatics, Moscow, 119121, Russia.
| | - Sergey M Ivanov
- Pirogov Russian National Research Medical University, Department of Bioinformatics, Moscow, 117997, Russia
- Institute of Biomedical Chemistry, Department of Bioinformatics, Moscow, 119121, Russia
| | - Tatyana A Gloriozova
- Institute of Biomedical Chemistry, Department of Bioinformatics, Moscow, 119121, Russia
| | - Pavel V Pogodin
- Institute of Biomedical Chemistry, Department of Bioinformatics, Moscow, 119121, Russia
| | - Dmitry A Filimonov
- Institute of Biomedical Chemistry, Department of Bioinformatics, Moscow, 119121, Russia
| | - Sandeep Kumar
- Punjabi University, Department of Pharmaceutical Sciences and Drug Research, Patiala, 147002, India
| | - Rajesh K Goel
- Punjabi University, Department of Pharmaceutical Sciences and Drug Research, Patiala, 147002, India.
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Srinivasan V, Braidy N, Chan EKW, Xu YH, Chan DKY. Genetic and environmental factors in vascular dementia: an update of blood brain barrier dysfunction. Clin Exp Pharmacol Physiol 2016; 43:515-21. [PMID: 26859837 DOI: 10.1111/1440-1681.12558] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/01/2016] [Accepted: 02/01/2016] [Indexed: 11/29/2022]
Abstract
Vascular dementia (VaD) describes a combination of both cognitive and behavioural manifestations associated with variable brain lesions of vascular origin. While vascular risk factors have been implicated in VaD, the relationship is most evident when the factors are considered together and not individually. This review will examine the significance of the integrity of blood brain barrier (BBB) tight junction (TJ) proteins - occludin and claudins in the pathophysiology of VaD. Specifically, some of the genetic contributors to VaD, namely those responsible for the integrity of the BBB, will be reviewed in detail. Moreover, environmental factors will be considered in conjunction with these genes to examine how the interaction of environmental and genetic factors contributes to one's susceptibility to VaD.
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Affiliation(s)
- Vivek Srinivasan
- Department of Aged Care and Rehabilitation, Bankstown-Lidcombe Hospital, Bankstown, Australia.,Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Nady Braidy
- Department of Aged Care and Rehabilitation, Bankstown-Lidcombe Hospital, Bankstown, Australia.,Ingham Institute, Liverpool, Australia.,School of Psychiatry, Centre for Healthy Brain Ageing, Sydney, Australia
| | - Eunice K W Chan
- Faculty of Medicine, Western Sydney University, Macarthur, Australia
| | - Ying-Hua Xu
- Department of Aged Care and Rehabilitation, Bankstown-Lidcombe Hospital, Bankstown, Australia.,Faculty of Medicine, University of New South Wales, Sydney, Australia.,Ingham Institute, Liverpool, Australia
| | - Daniel K Y Chan
- Department of Aged Care and Rehabilitation, Bankstown-Lidcombe Hospital, Bankstown, Australia.,Faculty of Medicine, University of New South Wales, Sydney, Australia.,Ingham Institute, Liverpool, Australia
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Vijayan M, Chinniah R, Ravi PM, Sivanadham R, Mosses Joseph AK, Vellaiappan NA, Krishnan JI, Karuppiah B. MTHFR (C677T) CT genotype and CT-apoE3/3 genotypic combination predisposes the risk of ischemic stroke. Gene 2016; 591:465-70. [PMID: 27378745 DOI: 10.1016/j.gene.2016.06.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/10/2016] [Accepted: 06/30/2016] [Indexed: 11/16/2022]
Abstract
The predisposition to ischemic stroke (IS) might involve interactions of several genes and environmental factors. The present study was aimed to evaluate the influence of polymorphisms in methylenetetrahydrofolate reductase (MTHFR-C677T) and apolipoprotein-E (apo-E) as risk factors for IS patients in south Indian population. 200 IS patients and 193 age and sex matched controls were genotyped for MTHFR-C677T and apoE by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) method. Statistically significant association was observed for MTHFR CT genotype (IS-Pooled: OR=4.29; p=5.01×10(-5); IS-Males: OR=4.13; p=0.001; IS-Females: OR=8.62; p=0.027; IS-Large Vessel Disease (LVD)- Pooled: OR=4.14; p=0.0002) and T allele (IS-Pooled: OR=4.82; p=1.49×10(-5); IS-Males: OR=4.33; p=0.0002; IS-Females: OR=7.99; p=0.031; IS-LVD-Pooled: OR=4.13; p=0.0001). Further, reduced frequencies of CC genotype (IS-Pooled: OR=0.20; p=9.80×10(-6); IS-Males: OR=0.25; p=0.001; IS-Females: OR=0.12; p=0.027; IS-LVD-Pooled: OR=0.23; p=0.0001) and C allele (IS-Pooled: OR=0.21; p=1.49×10(-5); IS-Males: OR=0.23; p=0.0002; IS-Females: OR=0.13; p=0.031; IS-LVD-Pooled: OR=0.24; p=0.0001) were observed in IS patients than the controls. No association was observed for apoE genotypes/alleles in IS/LVD cases. Our study demonstrated the presence of risk for MTHFR CT genotype/T allele and 'CT-3/3' (n=33 vs. 5; OR=7.42; p=0.001) genotypic combination in the development of IS in south India. Further, follow-up study of these stroke cases i.e., in later stages of the disease whether they are developing the neurological disorders such as Alzheimer's Disease (AD) and vascular dementia (VaD) is needed to draw a fruitful conclusion in connection between neurological disorders and with these two polymorphisms, before translating it into clinical practice.
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Affiliation(s)
- Murali Vijayan
- Department of Biotechnology & Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India; Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Rathika Chinniah
- Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Padma Malini Ravi
- Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Ramgopal Sivanadham
- Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | | | | | | | - Balakrishnan Karuppiah
- Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India.
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