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Khorrami M, Saneipour M, Moridnia A, Shaygannejad V, Sadeghi E, Kassani A, Sarmadi A, Mirmosayyeb O. Interdependency of NINJ2 gene expression and polymorphism with susceptibility and response to interferon beta in patients with multiple sclerosis. Int J Neurosci 2024; 134:347-352. [PMID: 35912872 DOI: 10.1080/00207454.2022.2102979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 06/30/2022] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Multiple sclerosis (MS) is a multifactorial inflammatory and autoimmune condition that lead to chronic neurodegeneration and central nervous system (CNS) demyelination that mainly affects young adults. The incidence and prevalence rate of MS considerably vary in ethnicities and geographic regions and affecting women more than men. Interferon-β (IFN-β) is the first-line disease management for MS, while the majority of affected members does not respond to the IFN-β. Numerous recent studies shown a significant relationship between genetic variations and responsiveness to the IFN-β. Therefore, determining the genetic differences in the drug response could help determine precise treatment strategies. METHODS The genotyping of the rs7298096 polymorphism (SNP) and NINJ2 gene expression were assessed in 99 responders and 106 non-responder patients with IFN-β treated RRMS. RESULTS The distribution of rs7298096 SNP was significantly different in the responders and non-responder patients and the NINJ2 gene expression considerably increased in the non-responder patients compare to the responders. The NINJ2 gene expression level in the AA genotype of the non-responder group was higher than to the other genotypes of both groups. CONCLUSION Our results showed that the NINJ2 gene expression level and rs7298096 genotype possibly affect the response to the IFN-β in patients with RRMS.
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Affiliation(s)
- Mehdi Khorrami
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Saneipour
- Department of Genetics and Molecular Biology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Abbas Moridnia
- Department of Genetics and Molecular Biology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Vahid Shaygannejad
- Isfahan Neuroscience Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Erfan Sadeghi
- Department of Biostatistics and Epidemiology, Faculty of Health, Isfahan University of Medical Sciences Isfahan Iran, Isfahan, Iran
| | - Aziz Kassani
- Department of Community Medicine, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Akram Sarmadi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Mirmosayyeb
- Isfahan Neuroscience Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Yan S, Wu S, Wu J, Zhang Q, He Y, Jiang C, Jin T. Genetic polymorphisms of MRPS30-DT and NINJ2 may influence lung cancer risk. Open Med (Wars) 2023; 18:20230655. [PMID: 36910850 PMCID: PMC9999113 DOI: 10.1515/med-2023-0655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 10/21/2022] [Accepted: 01/10/2023] [Indexed: 03/11/2023] Open
Abstract
Lung cancer is one of the malignant tumors, and genetic background is a risk factor in lung cancer that cannot be neglected. In this study, we aimed to find out the effect of MRPS30-DT and NINJ2 variants on lung cancer risk. In this study, the seven selected single-nucleotide polymorphisms (SNPs) of MRPS30-DT and NINJ2 were genotyped in 509 lung cancer patients and 501 healthy controls based on the Agena MassARRAY platform. Odds ratios and 95% confidence intervals were calculated by logistic regression analysis to evaluate association between gene polymorphisms and lung cancer risk. False-positive report probability was also used to assess false-positive results. Furthermore, the interaction between SNPs was analyzed by multifactor dimensionality reduction to predict lung cancer risk. We identified the genotype TA of rs16901963 (T < A) in MRPS30-DT as a protective factor against lung cancer, while rs16901963-TT was significantly associated with an increased risk of lung cancer. We also revealed that the effect of MRPS30-DT and NINJ2 variants on the risk of lung cancer was dependent on age, gender, smoking, and drinking status. In conclusion, this study first proved that MRPS30-DT and NINJ2 variants played important roles in affecting the susceptibility to lung cancer.
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Affiliation(s)
- Shouchun Yan
- Department of Emergency Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang712000, Shaanxi Province, China
| | - Shouzhen Wu
- Department of Emergency Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang712000, Shaanxi Province, China
| | - Jia Wu
- School of Nursing, Shaanxi University of Chinese Medicine, Xianyang712046, Shaanxi Province, China
| | - Qinlu Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an710061, Shaanxi Province, China
| | - Yongjun He
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang712082, Shaanxi Province, China
| | - Chao Jiang
- The Third Department of Neurology, The Second Affiliated Hospital of Xi’an Medical University, Xi’an710038, Shaanxi Province, China
| | - Tianbo Jin
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, No. 6, Wenhui East Road, Xianyang712082, Shaanxi Province, China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi’an710069, Shaanxi Province, China
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Hu S, Guo W, Shen Y. Potential link between the nerve injury-induced protein (Ninjurin) and the pathogenesis of endometriosis. Int Immunopharmacol 2023; 114:109452. [PMID: 36446236 DOI: 10.1016/j.intimp.2022.109452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/29/2022] [Accepted: 11/10/2022] [Indexed: 11/27/2022]
Abstract
Endometriosis remains a widespread but severe gynecological disease in women of reproductive age, with an unknown etiology and few treatment choices. The menstrual reflux theory is largely accepted as the underlying etiology but does not explain the morbidity or unpleasant pain sensations of endometriosis. The neurological and immune systems are both involved in pain mechanisms of endometriosis, and interlinked through a complex combination of cytokines and neurotransmitters. Numerous pieces of evidence suggest that the nerve injury-inducible protein, Ninjurin, is actively expressed in endometriosis lesions, which contributes to the etiology and development of endometriosis. It may be explored in the future as a novel therapeutic target. The aim of the present review was to elucidate the multifaceted role of Ninjurin. Furthermore, we summarize the association of Ninjurin with the pain mechanism of endometriosis and outline the future research directions. A novel therapeutic pathway can be discovered based on the potential pathogenic variables.
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Affiliation(s)
- Sijian Hu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weina Guo
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yi Shen
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Guo HM, Zhang Y, Zhang Y, Jiao PF, Fan XC, Kong CL, Wang T, Li XX, Zhang HW, Zhang LR, Ma MY, Bu HL. Spinal Ninjurin2 contributes to the neuropathic pain via NF-κB-mediated neuroinflammation in the spared sciatic nerve injury rats. Int Immunopharmacol 2021; 99:107918. [PMID: 34320458 DOI: 10.1016/j.intimp.2021.107918] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/09/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022]
Abstract
OBJECT Ninjurin2 (nerve injury induced protein 2, NINJ2) is a molecule which mediates cell-to-cell and cell-to-extracellular matrix interactions in the nervous system. Clinical study shows NINJ2 is associated with the development of postherpetic neuralgia. However, it is lack of direct evidence that NINJ2 participated in neuropathic pain. In this study, we aim to investigate the role of NINJ2 in the development of neuropathic pain in spared sciatic nerve injury rats and the underlying mechanism. METHOD Spared sciatic nerve injury (SNI) models were established. The level of NINJ2 and p-p65 (a NF-κB family member) were measured in SNI rats by western blots and immunofluorescent staining. Lentivirus encoding small interfering RNA targeting NINJ2 (RNAi) was intrathecally injected into rats. Then the change of pain behavior of rats induced by NINJ2 RNAi was tested by Von-Frey hairs. The change of p-p65 in the spinal cord in rats after NINJ2 RNAi treatment was also measured by western blots. inhibitor of p-p65-induced change of TNF-α, IL-1β, and IL-6 levels were measured by ELISA. RESULTS NINJ2 and p-p65 were increased in the spinal cord of SNI rats on the 3, 7, 14th days after modeling. NINJ2 were mainly expressed in neurons, and co-located with p-p65 in the spinal dorsal horn. When down regulating the level of NINJ2 by RNAi, the development of pain in SNI rats was partially blocked. Phosphorylation of p65 was also inhibited by NINJ2 RNAi. Blocking the phosphorylation of NF-κB pathway could inhibit the increase of TNF-α, IL-1β, and IL-6 in the spinal cord of SNI rats. CONCLUSION NINJ2 protein was increased in the spinal cord of SNI rats. It participated in the development of nerve injury-induced neuropathic pain by activating neuroinflammation in the spinal cord via NF-κB pathway. This study provides a new target to investigate the mechanism of neuropathic pain.
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Affiliation(s)
- Hai-Ming Guo
- Department of Anesthesiology, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Yu Zhang
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China; Department of Anesthesiology, the Third Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Yan Zhang
- Department of Pain Management, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430000 Wuhan, China
| | - Peng-Fei Jiao
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Xiao-Chong Fan
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Cun-Long Kong
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Tao Wang
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Xin-Xin Li
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China
| | - Hong-Wei Zhang
- School of Basic Medical Sciences, Zhengzhou University, 450000 Zhengzhou, China
| | - Li-Rong Zhang
- School of Basic Medical Sciences, Zhengzhou University, 450000 Zhengzhou, China
| | - Min-Yu Ma
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China.
| | - Hui-Lian Bu
- Department of Pain Management, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, China.
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Cheng Y, Yang L, Shi G, Chen P, Li L, Fang H, Chen C. Ninjurin 2 rs118050317 gene polymorphism and endometrial cancer risk. Cancer Cell Int 2021; 21:1. [PMID: 33397383 PMCID: PMC7784262 DOI: 10.1186/s12935-020-01646-5] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/09/2020] [Indexed: 01/10/2023] Open
Abstract
Background Endometrial cancer is one of the most common female reproductive system tumors. Ninjurin2 (NINJ2) is a new adhesion factor. As a vascular susceptibility gene, it is highly expressed in other cancers and promotes the growth of cancer cells. We conducted an association analysis between NINJ2 gene polymorphism and endometrial cancer risk. Methods Five SNPs rs118050317, rs75750647, rs7307242, rs10849390 and rs11610368 of NINJ2 gene were genotyped in 351 endometrial cancer patients and 344 healthy controls. The clinical index difference between cases and controls were tested by one-way analysis of variance. The allele and genotype frequency of cases and controls were been compared by Chi square test. The odds ratios (OR) with 95% confidence interval (95% CI) were examined by logistic regression analysis. Results The SNP rs118050317 mutant allele C and homozygote CC genotype were significant increased the endometrial cancer risk (OR 1.46, 95% CI 1.04–2.06, p = 0.028; OR 8.43, 95% CI 1.05–67.89, p = 0.045). In the clinical index analysis, there were significant higher quantities of CEA, CA125 and AFP in cases serum than controls. Conclusion The NINJ2 gene polymorphism loci rs118050317 mutant allele C was associated with an increased risk of endometrial cancer. CEA, CA125 and AFP quantities were significant higher in endometrial cancer patients.
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Affiliation(s)
- Yimin Cheng
- The National Engineering Research Centre for Miniaturized Detection Systems, College of Life Science, Northwest University, #229 North TaiBai Road, Xi'an, 710069, Shaanxi, China.,The Hospital of Xi'an Shiyou University, Xi'an, People's Republic of China
| | - Liting Yang
- The National Engineering Research Centre for Miniaturized Detection Systems, College of Life Science, Northwest University, #229 North TaiBai Road, Xi'an, 710069, Shaanxi, China
| | - Guangyao Shi
- The National Engineering Research Centre for Miniaturized Detection Systems, College of Life Science, Northwest University, #229 North TaiBai Road, Xi'an, 710069, Shaanxi, China
| | - Peng Chen
- The National Engineering Research Centre for Miniaturized Detection Systems, College of Life Science, Northwest University, #229 North TaiBai Road, Xi'an, 710069, Shaanxi, China
| | - Liang Li
- Department of Radiotherapy, Shaanxi Provincial Tumor Hospital, Xi'an, People's Republic of China
| | - Hangrong Fang
- Department of Pathology, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Xi'an, People's Republic of China
| | - Chao Chen
- The National Engineering Research Centre for Miniaturized Detection Systems, College of Life Science, Northwest University, #229 North TaiBai Road, Xi'an, 710069, Shaanxi, China.
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El Bitar F, Al Sudairy N, Qadi N, Al Rajeh S, Alghamdi F, Al Amari H, Al Dawsari G, Alsubaie S, Al Sudairi M, Abdulaziz S, Al Tassan N. A Comprehensive Analysis of Unique and Recurrent Copy Number Variations in Alzheimer's Disease and its Related Disorders. Curr Alzheimer Res 2020; 17:926-938. [PMID: 33256577 DOI: 10.2174/1567205017666201130111424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/20/2020] [Accepted: 10/29/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Copy number variations (CNVs) play an important role in the genetic etiology of various neurological disorders, including Alzheimer's disease (AD). Type 2 diabetes mellitus (T2DM) and major depressive disorder (MDD) were shown to have share mechanisms and signaling pathways with AD. OBJECTIVE We aimed to assess CNVs regions that may harbor genes contributing to AD, T2DM, and MDD in 67 Saudi familial and sporadic AD patients, with no alterations in the known genes of AD and genotyped previously for APOE. METHODS DNA was analyzed using the CytoScan-HD array. Two layers of filtering criteria were applied. All the identified CNVs were checked in the Database of Genomic Variants (DGV). RESULTS A total of 1086 CNVs (565 gains and 521 losses) were identified in our study. We found 73 CNVs harboring genes that may be associated with AD, T2DM or MDD. Nineteen CNVs were novel. Most importantly, 42 CNVs were unique in our studied cohort existing only in one patient. Two large gains on chromosomes 1 and 13 harbored genes implicated in the studied disorders. We identified CNVs in genes that encode proteins involved in the metabolism of amyloid-β peptide (AGRN, APBA2, CR1, CR2, IGF2R, KIAA0125, MBP, RER1, RTN4R, VDR and WISPI) or Tau proteins (CACNAIC, CELF2, DUSP22, HTRA1 and SLC2A14). CONCLUSION The present work provided information on the presence of CNVs related to AD, T2DM, and MDD in Saudi Alzheimer's patients.
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Affiliation(s)
- Fadia El Bitar
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Nourah Al Sudairy
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Najeeb Qadi
- Department of Neurosciences, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | | | - Fatimah Alghamdi
- Institute of Biology and Environmental Research, National Center for Biotechnology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Hala Al Amari
- Institute of Biology and Environmental Research, National Center for Biotechnology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Ghadeer Al Dawsari
- Institute of Biology and Environmental Research, National Center for Genomics Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Sahar Alsubaie
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Mishael Al Sudairi
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Sara Abdulaziz
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Nada Al Tassan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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Assessment of Association between NINJ2 Polymorphisms and Suicide Attempts in an Iranian Population. J Mol Neurosci 2020; 70:1880-1886. [PMID: 32436199 DOI: 10.1007/s12031-020-01584-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/13/2020] [Indexed: 01/04/2023]
Abstract
Suicidal behavior as a psychological problem with high public health burden is associated with a number of genetically determined risk factors. In the current study, we investigated the association between two polymorphisms within the NINJ2 gene and risk of suicide in an Iranian population. The study included 295 individuals who attempted suicide with soft suicide methods, 234 suicide victims and 410 normal controls. The rs11833579 SNP was associated with death from suicide in a codominant model in that the AG genotype decreased the risk of death from suicide compared with the GG genotype (OR (95% CI) = 0.49 (0.34-0.71), adjusted P value = 4e-04). This SNP was also associated with death from suicide in dominant (AG + AA versus GG: OR (95% CI) = 0.63 (0.46-0.87), adjusted P value = 0.011) and overdominant (AG versus GG + AA: OR (95% CI) = 0.49 (0.35-0.69), adjusted P value < 0.0001) models. In addition, this SNP was associated with soft suicide attempts in a codominant model (AG versus AA + GG: OR (95% CI) = 0.7 (0.5-0.98), adjusted P value = 0.02). The rs3806263 SNP was associated with death from suicide in allelic (A versus G: OR (95% CI) = 1.48 (1.17-1.88), adjusted P value = 0.002), codominant (AA versus GG: OR (95% CI) = 3.14 (1.89-5.21), adjusted P value < 0.0001), recessive (AA versus GG + AG: OR (95% CI) = 3.47 (2.15-5.61), adjusted P value < 0.0001), overdominant (AG versus AA + GG: OR (95% CI) = 0.62 (0.45-0.87), adjusted P value = 0.0092) and log-additive models (OR (95% CI) = 1.45 (1.15-1.83), adjusted P value = 0.0034). When comparing allele/genotype frequencies of this SNP between suicide victims and soft suicide attempters, significant associations were found in allelic, codominant, recessive and log-additive models. The AG haplotype (rs11833579 and rs3806263, respectively) was significantly less prevalent among suicide victims compared with controls (OR (95% CI) = 0.37 (0.26-0.52), adjusted P value < 0.0001). This haplotype was also less prevalent among suicide victims vs. soft suicide attempters (OR (95% CI) = 0.43 (0.31-0.61), adjusted P value < 0.0001). The GA haplotype (rs11833579 and rs3806263, respectively) was less frequent among suicide victims compared with controls (OR (95% CI) = 0.63 (0.45-0.89), adjusted P value = 0.0156). Finally, the AA haplotype was more prevalent among suicide victims compared with both controls (OR (95% CI) = 2.37 (1.56-3.6), adjusted P value = 0.0002) and soft suicide attempters (OR (95% CI) = 1.92 (1.32-2.78), adjusted P value = 0.0012). Thus, these two SNPs might be regarded as genetic determinants of suicide risk in Iranian populations. Further studies in different populations are needed to verify these results.
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Sayad A, Ghafouri-Fard S, Omrani MD, Taheri M. Associations Between Two Single-Nucleotide Polymorphisms in NINJ2 Gene and Risk of Psychiatric Disorders. J Mol Neurosci 2019; 70:236-245. [PMID: 31873837 DOI: 10.1007/s12031-019-01462-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/04/2019] [Indexed: 11/28/2022]
Abstract
NINJ2 encodes a transmembrane protein that contributes in neurodevelopment and regeneration of neurons. Single-nucleotide polymorphisms (SNPs) within this gene have been associated with Alzheimer's disease, ischemic stroke, and multiple sclerosis. The rs11833579 and rs3809263 SNPs have been associated with risk of ischemic stroke in Iranian population. While the NINJ2 rs12425791 has been with risk of ischemic stroke in East Asian population, the rs11833579 has not been associated with this condition either in East Asian population or Chinese Han population. In the current project, we genotyped rs11833579 and rs3809263 in a large cohort of neuropsychiatric patients including major depressive disorder, bipolar disorder, schizophrenia, and methamphetamine addiction. No significant difference was detected in frequencies of alleles, genotypes, or haplotypes between patients and controls. Thus, the current investigation failed to show association between rs11833579 and rs3809263 and the mentioned neuropsychiatric disorders. Future studies are needed to verify our results.
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Affiliation(s)
- Arezou Sayad
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mir Davood Omrani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Onuzulu CD, Rotimi OA, Rotimi SO. Epigenetic modifications associated with in utero exposure to endocrine disrupting chemicals BPA, DDT and Pb. REVIEWS ON ENVIRONMENTAL HEALTH 2019; 34:309-325. [PMID: 31271561 DOI: 10.1515/reveh-2018-0059] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are xenobiotics which adversely modify the hormone system. The endocrine system is most vulnerable to assaults by endocrine disruptors during the prenatal and early development window, and effects may persist into adulthood and across generations. The prenatal stage is a period of vulnerability to environmental chemicals because the epigenome is usually reprogrammed during this period. Bisphenol A (BPA), lead (Pb), and dichlorodiphenyltrichloroethane (DDT) were chosen for critical review because they have become serious public health concerns globally, especially in Africa where they are widely used without any regulation. In this review, we introduce EDCs and describe the various modes of action of EDCs and the importance of the prenatal and developmental windows to EDC exposure. We give a brief overview of epigenetics and describe the various epigenetic mechanisms: DNA methylation, histone modifications and non-coding RNAs, and how each of them affects gene expression. We then summarize findings from previous studies on the effects of prenatal exposure to the endocrine disruptors BPA, Pb and DDT on each of the previously described epigenetic mechanisms. We also discuss how the epigenetic alterations caused by these EDCs may be related to disease processes.
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Affiliation(s)
- Chinonye Doris Onuzulu
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
| | - Oluwakemi Anuoluwapo Rotimi
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
| | - Solomon Oladapo Rotimi
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
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Peroni S, Sorosina M, Malhotra S, Clarelli F, Osiceanu AM, Ferrè L, Roostaei T, Rio J, Midaglia L, Villar LM, Álvarez-Cermeño JC, Guaschino C, Radaelli M, Citterio L, Lechner-Scott J, Spataro N, Navarro A, Martinelli V, Montalban X, Weiner HL, de Jager P, Comi G, Esposito F, Comabella M, Martinelli-Boneschi F. A pharmacogenetic study implicates NINJ2 in the response to Interferon-β in multiple sclerosis. Mult Scler 2019; 26:1074-1082. [PMID: 31221001 DOI: 10.1177/1352458519851428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) is a disease in which biomarker identification is fundamental to predict response to treatments and to deliver the optimal drug to patients. We previously found an association between rs7298096, a polymorphism upstream to the NINJ2 gene, and the 4-year response to interferon-β (IFNβ) treatment in MS patients. OBJECTIVES To analyse the association between rs7298096 and time to first relapse (TTFR) during IFNβ therapy in MS patients and to better investigate its functional role. METHODS Survival analysis was applied in three MS cohorts from different countries (n = 1004). We also studied the role of the polymorphism on gene expression using GTEx portal and a luciferase assay. We interrogated GEO datasets to explore the relationship between NINJ2 expression, IFNβ and TTFR. RESULTS Rs7298096AA patients show a shorter TTFR than rs7298096G-carriers (Pmeta-analysis = 3 × 10-4, hazard ratio = 1.41). Moreover, rs7298096AA is associated with a higher NINJ2 expression in blood (p = 7.0 × 10-6), which was confirmed in vitro (p = 0.009). Finally, NINJ2 expression is downregulated by IFNβ treatment and related to TTFR. CONCLUSIONS Rs7298096 could influence MS disease activity during IFNβ treatment by modulating NINJ2 expression in blood. The gene encodes for an adhesion molecule involved in inflammation and endothelial cells activation, supporting its role in MS.
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Affiliation(s)
- Silvia Peroni
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Melissa Sorosina
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Sunny Malhotra
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ferdinando Clarelli
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ana Maria Osiceanu
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Laura Ferrè
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy/Center for Translational and Computational Neuroimmunology, Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Tina Roostaei
- Center for Translational and Computational Neuroimmunology, Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Jordi Rio
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Luciana Midaglia
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Luisa María Villar
- Departments of Neurology and Immunology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigacion Sanitaria, Madrid, Spain
| | - José Carlos Álvarez-Cermeño
- Departments of Neurology and Immunology, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigacion Sanitaria, Madrid, Spain
| | - Clara Guaschino
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marta Radaelli
- Department of Neurology, Institute of Experimental Neurology (INSPE), Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Lorena Citterio
- Genomics of Renal Diseases and Hypertension Unit, Division of Genetics and Cellular Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Jeannette Lechner-Scott
- Department of Neurology, John Hunter Hospital, Newcastle, NSW, Australia/Hunter Medical Research Institute, University of Newcastle, NSW, Australia
| | - Nino Spataro
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain/Institute of Evolutionary Biology (UPF-CSIC), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Arcadi Navarro
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain/Institute of Evolutionary Biology (UPF-CSIC), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain/National Institute for Bioinformatics (INB), Barcelona, Spain/Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona Biomedical Research Park (PRBB), Barcelona, Spain
| | - Vittorio Martinelli
- Department of Neurology, Institute of Experimental Neurology (INSPE), Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Xavier Montalban
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain/St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Howard L Weiner
- Partners Multiple Sclerosis Center, Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Philip de Jager
- Center for Translational and Computational Neuroimmunology, Department of Neurology, Columbia University Medical Center, New York, NY, USA/Cell Circuits Program, Broad Institute, Cambridge, MA, USA
| | - Giancarlo Comi
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy/Department of Neurology, Institute of Experimental Neurology (INSPE), Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Federica Esposito
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy/Department of Neurology, Institute of Experimental Neurology (INSPE), Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Manuel Comabella
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Filippo Martinelli-Boneschi
- Laboratory of Human Genetics of Neurological Disorders, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute, Milan, Italy/Department of Biomedical Sciences for Health, University of Milan, Milan, Italy/Department of Neurology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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11
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Maloney B, Bayon BL, Zawia NH, Lahiri DK. Latent consequences of early-life lead (Pb) exposure and the future: Addressing the Pb crisis. Neurotoxicology 2018; 68:126-132. [PMID: 29981765 PMCID: PMC9873145 DOI: 10.1016/j.neuro.2018.06.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/29/2018] [Accepted: 06/30/2018] [Indexed: 01/27/2023]
Abstract
BACKGROUND The lead (Pb) exposure crisis in Flint, Michigan has passed from well-publicized event to a footnote, while its biological and social impact will linger for lifetimes. Interest in the "water crisis" has dropped to pre-event levels, which is neither appropriate nor safe. Flint's exposure was severe, but it was not unique. Problematic Pb levels have also been found in schools and daycares in 42 states in the USA. The enormity of Pb exposure via municipal water systems requires multiple responses. Herein, we focus on addressing a possible answer to long-term sequelae of Pb exposure. We propose "4R's" (remediation, renovation, reallocation, and research) against the Pb crisis that goes beyond a short-term fix. Remediation for affected individuals must continue to provide clean water and deal with both short and long-term effects of Pb exposure. Renovation of current water delivery systems, at both system-wide and individual site levels, is necessary. Reallocation of resources is needed to ensure these two responses occur and to get communities ready for potential sequelae of Pb exposure. Finally, properly focused research can track exposed individuals and illuminate latent (presumably epigenetic) results of Pb exposure and inform further resource reallocation. CONCLUSION Motivation to act by not only the general public but also by scientific and medical leaders must be maintained beyond initial news cycle spikes and an annual follow-up story. Environmental impact of Pb contamination of drinking water goes beyond one exposure incident in an impoverished and forgotten Michigan city. Population effects must be addressed long-term and nationwide.
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Affiliation(s)
- Bryan Maloney
- Department of Psychiatry, USA,Indiana Alzheimer Disesae Center, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Baindu L. Bayon
- Medical & Molecular Genetics, USA,Indiana Alzheimer Disesae Center, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Nasser H. Zawia
- Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA
| | - Debomoy K. Lahiri
- Department of Psychiatry, USA,Medical & Molecular Genetics, USA,Indiana Alzheimer Disesae Center, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA,Corresponding author at: Department of Psychiatry, Neuroscience Research Building, Indiana University School of Medicine, 320 West 15th St., Indianapolis IN 46202, USA. (D.K. Lahiri)
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12
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Sen A, Heredia N, Senut MC, Land S, Hollocher K, Lu X, Dereski MO, Ruden DM. Multigenerational epigenetic inheritance in humans: DNA methylation changes associated with maternal exposure to lead can be transmitted to the grandchildren. Sci Rep 2015; 5:14466. [PMID: 26417717 PMCID: PMC4586440 DOI: 10.1038/srep14466] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 07/30/2015] [Indexed: 12/26/2022] Open
Abstract
We report that the DNA methylation profile of a child’s neonatal whole blood can be significantly influenced by his or her mother’s neonatal blood lead levels (BLL). We recruited 35 mother-infant pairs in Detroit and measured the whole blood lead (Pb) levels and DNA methylation levels at over 450,000 loci from current blood and neonatal blood from both the mother and the child. We found that mothers with high neonatal BLL correlate with altered DNA methylation at 564 loci in their children’s neonatal blood. Our results suggest that Pb exposure during pregnancy affects the DNA methylation status of the fetal germ cells, which leads to altered DNA methylation in grandchildren’s neonatal dried blood spots. This is the first demonstration that an environmental exposure in pregnant mothers can have an epigenetic effect on the DNA methylation pattern in the grandchildren.
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Affiliation(s)
- Arko Sen
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201.,Department of Pharmacology, Wayne State University, Detroit, MI 48201
| | - Nicole Heredia
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Marie-Claude Senut
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Susan Land
- C. S. Mott Centre for Human Growth and Development, Wayne State University, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI 48201
| | | | - Xiangyi Lu
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201
| | - Mary O Dereski
- Department of Biomedical Sciences, Oakland University William Beaumont School of Medicine, Rochester, MI 48309
| | - Douglas M Ruden
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI 48201.,C. S. Mott Centre for Human Growth and Development, Wayne State University, Detroit, MI 48201.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI 48201
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13
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Zhang XG, Zhang H, Lin L, Yang YQ, Deng TT, Liu Q, Liang XL, Wang MQ, Peng DZ. Genes underlying positive influence of prenatal environmental enrichment and negative influence of prenatal earthquake simulation and corrective influence of Chinese herbal medicine on rat offspring: Irf7 and Ninj2. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2014; 11:367-76. [PMID: 25435624 DOI: 10.4314/ajtcam.v11i2.24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Prenatal environmental enrichment (EE) has been proven to positively affect but prenatal stress negatively influence the physiological and psychological processes in animals, whose trans-generational genetic mechanism remains unclearly defined. We aimed to investigate and find out key genes underlying the positive-negative effects derived from prenatal interventions. MATERIALS AND METHODS Pregnant rats were randomized into EE group (EEG), earthquake simulation group (ESG), herbal group (HG) received herbal supplements in feed after earthquake simulation, and control group (CG). RESULTS Light Box Defecation Test (LBDT) showed EEG offspring presented less fecal pellets than CG offspring, ESG's more than CG's, and HG's less than ESG (p's<0.05). Open-field Test (OFT) score of EEG was higher than CG offspring, of ESG's was lower than CG's, and HG's higher than ESG's. Irf7 and Ninj were screened, which were up-regulated in EEG, down-regulated in ESG (FC<0.5), and were neutralized in HG. Prenatal EE could positively promote the nervous system development, prenatal earthquake simulation could retard the nervous system development and Chinese herbal remedy (JKSQW) which could correct the retardation. CONCLUSION The negative-positive prenatal effect could contribute to altered gene expression of Irf7 and Ninj2 which also could play a key role in the improving function of JKSQW for the kidneys.
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Affiliation(s)
- Xian Geng Zhang
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Hui Zhang
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Lin Lin
- The School of Nursing, Chengdu Medical University, Chengdu, 610083, China
| | - Yi Qing Yang
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Ting Ting Deng
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Qin Liu
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Xiao Li Liang
- The School of Nursing, Chengdu University of T.C.M., Chengdu, 610075, China
| | - Mi Qu Wang
- Molecular Laboratory of T.C.M., Chengdu University of T.C.M., Chengdu, 610075, China
| | - De Zhong Peng
- The School of Acupuncture and Moxibustion, Chengdu University of T.C.M., Chengdu, 610075, China
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Cacabelos R, Cacabelos P, Torrellas C, Tellado I, Carril JC. Pharmacogenomics of Alzheimer's disease: novel therapeutic strategies for drug development. Methods Mol Biol 2014; 1175:323-556. [PMID: 25150875 DOI: 10.1007/978-1-4939-0956-8_13] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a major problem of health and disability, with a relevant economic impact on our society. Despite important advances in pathogenesis, diagnosis, and treatment, its primary causes still remain elusive, accurate biomarkers are not well characterized, and the available pharmacological treatments are not cost-effective. As a complex disorder, AD is a polygenic and multifactorial clinical entity in which hundreds of defective genes distributed across the human genome may contribute to its pathogenesis. Diverse environmental factors, cerebrovascular dysfunction, and epigenetic phenomena, together with structural and functional genomic dysfunctions, lead to amyloid deposition, neurofibrillary tangle formation, and premature neuronal death, the major neuropathological hallmarks of AD. Future perspectives for the global management of AD predict that genomics and proteomics may help in the search for reliable biomarkers. In practical terms, the therapeutic response to conventional drugs (cholinesterase inhibitors, multifactorial strategies) is genotype-specific. Genomic factors potentially involved in AD pharmacogenomics include at least five categories of gene clusters: (1) genes associated with disease pathogenesis; (2) genes associated with the mechanism of action of drugs; (3) genes associated with drug metabolism (phase I and II reactions); (4) genes associated with drug transporters; and (5) pleiotropic genes involved in multifaceted cascades and metabolic reactions. The implementation of pharmacogenomic strategies will contribute to optimize drug development and therapeutics in AD and related disorders.
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Affiliation(s)
- Ramón Cacabelos
- Chair of Genomic Medicine, Camilo José Cela University, 28692, Villanueva de la Cañada, Madrid, Spain,
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Cacabelos R, Cacabelos P, Torrellas C. Personalized Medicine of Alzheimer’s Disease. HANDBOOK OF PHARMACOGENOMICS AND STRATIFIED MEDICINE 2014. [PMCID: PMC7149555 DOI: 10.1016/b978-0-12-386882-4.00027-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Alzheimer’s disease (AD) is a major problem of health and disability, with a relevant economic impact on society (e.g., €177 billion in Europe). Despite important advances in pathogenesis, diagnosis, and treatment, The primary causes of AD remain elusive, accurate biomarkers are not well characterized, and available pharmacological treatments are not cost-effective. As a complex disorder, AD is polygenic and multifactorial: hundreds of defective genes distributed across the human genome may contribute to its pathogenesis (with the participation of diverse environmental factors, cerebrovascular dysfunction, and epigenetic phenomena) and lead to amyloid deposition, neurofibrillary tangle formation, and premature neuronal death. Future perspectives for the global management of AD predict that structural and functional genomics and proteomics may help in the search for reliable biomarkers, and that pharmacogenomics may be an option in optimizing drug development and therapeutics.
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CHRNA7 polymorphisms and response to cholinesterase inhibitors in Alzheimer's disease. PLoS One 2013; 8:e84059. [PMID: 24391883 PMCID: PMC3877150 DOI: 10.1371/journal.pone.0084059] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 11/19/2013] [Indexed: 12/26/2022] Open
Abstract
Background CHRNA7 encodes the α7 nicotinic acetylcholine receptor subunit, which is important to Alzheimer's disease (AD) pathogenesis and cholinergic neurotransmission. Previously, CHRNA7 polymorphisms have not been related to cholinesterase inhibitors (ChEI) response. Methods Mild to moderate AD patients received ChEIs were recruited from the neurology clinics of three teaching hospitals from 2007 to 2010 (n = 204). Nine haplotype-tagging single nucleotide polymorphisms of CHRNA7 were genotyped. Cognitive responders were those showing improvement in the Mini-Mental State Examination score ≧2 between baseline and 6 months after ChEI treatment. Results AD women carrying rs8024987 variants [GG+GC vs. CC: adjusted odds ratio (AOR) = 3.62, 95% confidence interval (CI) = 1.47–8.89] and GG haplotype in block1 (AOR = 3.34, 95% CI = 1.38–8.06) had significantly better response to ChEIs (false discovery rate <0.05). These variant carriers using galantamine were 11 times more likely to be responders than female non-carriers using donepezil or rivastigmine. Conclusion For the first time, this study found a significant association between CHRNA7 polymorphisms and better ChEI response. If confirmed by further studies, CHRNA7 polymorphisms may aid in predicting ChEI response and refining treatment choice.
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Aberrant methylation of gene associated CpG sites occurs in borderline personality disorder. PLoS One 2013; 8:e84180. [PMID: 24367640 PMCID: PMC3868545 DOI: 10.1371/journal.pone.0084180] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 11/12/2013] [Indexed: 01/03/2023] Open
Abstract
Borderline personality disorder (BPD) is a complex psychiatric disease with an increased impact in the last years. While the diagnosis and therapy are well established, little is known on the pathogenesis of borderline personality disorder. Previously, a significant increase in DNA methylation of relevant neuropsychiatric genes in BPD patients has been reported. In our study we performed genome wide methylation analysis and revealed specific CpG sites that exhibited increased methylation in 24 female BPD patients compared to 11 female healthy controls. Bead chip technology and quantitative bisulfite pyrosequencing showed a significantly increased methylation at CpG sites of APBA2 (1.1 fold) and APBA3 (1.1 fold), KCNQ1 (1.5 fold), MCF2 (1.1 fold) and NINJ2 (1.2 fold) in BPD patients. For the CpG sites of GATA4 and HLCS an increase in DNA methylation was observed, but was only significant in the bead chip assay. Moreover genome wide methylation levels of blood samples of BPD patients and control samples are similar. In summary, our results show a significant 1.26 fold average increase in methylation at the analyzed gene associated CpG sites in the blood of BPD patients compared to controls samples (p<0.001). This data may provide new insights into epigenetic mechanisms underlying the pathogenesis of BPD.
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Liu SY, Zeng FF, Chen ZW, Wang CY, Zhao B, Li KS. Vascular endothelial growth factor gene promoter polymorphisms and Alzheimer's disease risk: a meta-analysis. CNS Neurosci Ther 2013; 19:469-76. [PMID: 23575378 DOI: 10.1111/cns.12093] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 02/10/2013] [Accepted: 02/12/2013] [Indexed: 01/11/2023] Open
Abstract
AIM Conclusions on the association between polymorphisms in the vascular endothelial growth factor (VEGF) gene promoter and risk of Alzheimer's disease (AD) are ambiguous, and sufficient evaluation of the association is lacking. Therefore, we performed a meta-analysis of observational studies to explore the association between polymorphisms in the VEGF gene promoter and AD risk. METHODS Bibliographical searches were performed in the MEDLINE, EMBASE, and China National Knowledge Infrastructure (CNKI) databases without any language limitations. Three investigators independently assessed abstracts for relevant studies and independently reviewed all eligible studies. A meta-analysis was conducted using a fixed- or random-effects model. Odds ratios (ORs) and their 95% confidence intervals (CIs) were used to assess the strength of association. All statistical analyses were performed using Stata 11.0 software. RESULTS The meta-analysis of 2787 AD cases and 2841 controls from eight published case-control studies on the -2578C/A polymorphism and 1422 AD cases and 1063 controls from four studies on the -1154G/A polymorphism did not show any significant associations. However, in a subgroup analysis stratified by the presence of APOE є4, associations were observed with APOE ε4 (-) for -2578C/A (A vs. C: OR = 1.22, 95% CI = 1.04-1.43, P = 0.014; A/A vs. C/C: OR = 1.59, 95% CI = 1.11-2.27, P = 0.011 and A/A vs. A/C + C/C: OR = 1.46, 95% CI = 1.08-1.99, P = 0.015) and -1154G/A (A vs. G: OR = 0.74, 95% CI = 0.62-0.89, P = 0.001; A/A vs. G/G: OR = 0.57, 95% CI = 0.37-0.87, P = 0.009; A/G vs. G/G: OR = 0.69, 95% CI = 0.53-0.89, P = 0.004 and A/A + A/G vs. G/G: OR = 0.66, 95% CI = 0.52-0.85, P = 0.001). CONCLUSION This meta-analysis showed the risk role of the -2578 polymorphism and the protective role of the -1154 polymorphism when the APOE є4 status was negative, suggesting that the two polymorphisms in the VEGF promoter may have opposing effects on AD risk in an APOE є4-independent manner.
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Affiliation(s)
- Sheng-Yuan Liu
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
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Liu SY, Wang W, Cai ZY, Yao LF, Chen ZW, Wang CY, Zhao B, Li KS. Polymorphism -116C/G of human X-box-binding protein 1 promoter is associated with risk of Alzheimer's disease. CNS Neurosci Ther 2013; 19:229-34. [PMID: 23421912 DOI: 10.1111/cns.12064] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 01/08/2013] [Accepted: 01/10/2013] [Indexed: 01/14/2023] Open
Abstract
AIM Alzheimer's disease (AD) is a multifactor disease that has been reported to have a close association with endoplasmic reticulum (ER) stress response. In the response, the regulator factor human X-box-binding protein 1 (XBP1) has been shown to facilitate the refolding and degradation of misfolded proteins, prevent neurotoxicity of amyloid-beta (Aβ) and tau, and play an important role in the survival of neurons. The aim in the study was to analyze the potential association between the -116C/G polymorphism of XBP1 and the risk of AD. METHODS The association between -116C/G polymorphism of XBP1 promoter and possible risk of AD was assessed among 276 patients with AD and 254 matched healthy individuals in a case-control study. RESULTS Overall, there was a significantly statistical difference in genotype (P = 0.0354) and allele frequencies (P = 0.0150, OR = 1.3642, 95% CI = 1.0618-1.7528) between the AD subjects and control subjects, showing that the -116C/G polymorphism of XBP1 might lead to increased susceptibility for AD in a Chinese Han population. In addition, the -116CG and -116GG genotypes were significantly associated with increased AD risk in female (P = 0.0217) and in subjects with APOE є4 (-) (P = 0.0070) in stratified analyses, and the -116CC genotype was significantly associated with fast cognitive deterioration in the AD patients (P = 0.0270). CONCLUSION The study supports a role for the -116C/G polymorphism of XBP1 gene in the pathogenesis of AD, and further studies with a larger sample size and detailed data should be performed in other populations.
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Affiliation(s)
- Sheng-Yuan Liu
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
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Mechanism of earthquake simulation as a prenatal stressor retarding rat offspring development and chinese medicine correcting the retardation: hormones and gene-expression alteration. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:670362. [PMID: 23304210 PMCID: PMC3523342 DOI: 10.1155/2012/670362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 10/03/2012] [Accepted: 10/05/2012] [Indexed: 01/15/2023]
Abstract
We aimed to investigate the mechanism of shaking as a prenatal stressor impacting the development of the offspring and Chinese medicines correcting the alterations. Pregnant rats were randomized into earthquake simulation group (ESG), herbal group (HG) which received herbal supplements in feed after shaking, and control group (CG). Findings revealed body weight and open field test (OFT) score of ESG offspring were statistically inferior to the CG and HG offspring. The corticosterone levels of ESG were higher than those of CG but not than HG. The dopamine level of ESG was slightly lower than that of the CG and of HG was higher than that of ESG. The 5-HT of ESG was higher than CG and HG. The growth hormone level of the ESG was significantly lower than ESG but not than CG. Gene expression profile showed 81 genes upregulated and 39 genes downregulated in ESG versus CG, and 60 genes upregulated and 28 genes downregulated in ESG versus HG. Eighty-four genes were found differentially expressed in ESG versus CG comparison and were normalized in ESG versus HG. We conclude that maternal shaking negatively affected physical and nervous system development, with specific alterations in neurohormones and gene expression. Chinese herbal medicine reduced these negative outcomes.
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Association between 12p13 SNPs rs11833579/rs12425791 near NINJ2 gene and ischemic stroke in East Asian population: evidence from a meta-analysis. J Neurol Sci 2012; 316:116-21. [PMID: 22297388 DOI: 10.1016/j.jns.2012.01.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Revised: 01/09/2012] [Accepted: 01/13/2012] [Indexed: 11/20/2022]
Abstract
BACKGROUND Meta-analysis in European population found no association between rs12425791/rs11833579 and ischemic stroke. Several studies focused on East Asians have evaluated the association between this two SNPs and risk of ischemic stroke, but the results have been inconsistent. The aim of this study was to perform a meta-analysis to investigate a more authentic association between rs12425791 and rs11833579 G>A mutation and ischemic stroke in East Asian population, as well as in Chinese Han population. METHODS Systematic searches of electronic databases Embase, PubMed, Web of Science, and CBM as well as hand searching of the references of identified articles and the meeting abstracts were performed. Study selection, data abstraction and study quality evaluation were independently conducted in duplicate. Statistical analyses were performed using software Stata 11.0. The pooled odds ratios (ORs) with 95% confidence intervals (95%CIs) were performed. Different effects models were used according to the difference in heterogeneity. Publication bias was tested by Begg's funnel plot and Egger's regression test. RESULTS A total of 4 publications including 7 studies were involved. For rs12425791, significant association was found in allelic model (OR=1.06, 95%CI=1.00-1.11) and dominant model (OR=1.10, 95%CI=1.03-1.18), whereas no evidence of association was found for additive model (OR=1.04, 95%CI=0.93-1.17) and for recessive model (OR=0.99, 95%CI=0.88-1.10). For rs11833579, no evidence of association was found for all genetic models. In the analysis of Chinese Han population, there is lack of evidence for association of ischemic stroke for both SNPs. CONCLUSIONS In summary, our meta-analysis suggests that rs12425791 is significantly associated with ischemic stroke in East Asian population but not Chinese Han population, of which A alleles increase the risk of ischemic stroke, whereas no evidence of association was found for rs11833579 in East Asian population as well as Chinese Han population.
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