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Hu W, Liu Y, Lian C, Lu H. Genetic insight into putative causes of xanthelasma palpebrarum: a Mendelian randomization study. Front Immunol 2024; 15:1347112. [PMID: 38601164 PMCID: PMC11004296 DOI: 10.3389/fimmu.2024.1347112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Xanthelasma palpebrarum (XP) is the most common form of cutaneous xanthoma, with a prevalence of 1.1%~4.4% in the population. However, the cause of XP remains largely unknown. In the present study, we used Mendelian randomization to assess the genetic association between plasma lipids, metabolic traits, and circulating protein with XP, leveraging summary statistics from large genome-wide association studies (GWAS). Genetically predicted plasma cholesterol and LDL-C, but not HDL-C or triglyceride, were significantly associated with XP. Metabolic traits, including BMI, fasting glucose, type 2 diabetes, systolic and diastolic blood pressure, were not significantly associated with XP. Furthermore, we found genetically predicted 12 circulating proteins were associated with XP, including FN1, NTM, FCN2, GOLM1, ICAM5, PDE5A, C5, CLEC11A, CXCL1, CCL2, CCL11, CCL13. In conclusion, this study identified plasma cholesterol, LDL-C, and 12 circulating proteins to be putative causal factors for XP, highlighting the role of plasma cholesterol and inflammatory response in XP development.
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Affiliation(s)
- Wenting Hu
- Department of Dermatology, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, China
| | - Yaozhong Liu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, MI, United States
| | - Cuihong Lian
- Department of Dermatology, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, China
| | - Haocheng Lu
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China
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2
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Armstrong ND, Srinivasasainagendra V, Patki A, Tanner RM, Hidalgo BA, Tiwari HK, Limdi NA, Lange EM, Lange LA, Arnett DK, Irvin MR. Genetic Contributors of Incident Stroke in 10,700 African Americans With Hypertension: A Meta-Analysis From the Genetics of Hypertension Associated Treatments and Reasons for Geographic and Racial Differences in Stroke Studies. Front Genet 2022; 12:781451. [PMID: 34992631 PMCID: PMC8724550 DOI: 10.3389/fgene.2021.781451] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/23/2021] [Indexed: 11/25/2022] Open
Abstract
Background: African Americans (AAs) suffer a higher stroke burden due to hypertension. Identifying genetic contributors to stroke among AAs with hypertension is critical to understanding the genetic basis of the disease, as well as detecting at-risk individuals. Methods: In a population comprising over 10,700 AAs treated for hypertension from the Genetics of Hypertension Associated Treatments (GenHAT) and Reasons for Geographic and Racial Differences in Stroke (REGARDS) studies, we performed an inverse variance-weighted meta-analysis of incident stroke. Additionally, we tested the predictive accuracy of a polygenic risk score (PRS) derived from a European ancestral population in both GenHAT and REGARDS AAs aiming to evaluate cross-ethnic performance. Results: We identified 10 statistically significant (p < 5.00E-08) and 90 additional suggestive (p < 1.00E-06) variants associated with incident stroke in the meta-analysis. Six of the top 10 variants were located in an intergenic region on chromosome 18 (LINC01443-LOC644669). Additional variants of interest were located in or near the COL12A1, SNTG1, PCDH7, TMTC1, and NTM genes. Replication was conducted in the Warfarin Pharmacogenomics Cohort (WPC), and while none of the variants were directly validated, seven intronic variants of NTM proximal to our target variants, had a p-value <5.00E-04 in the WPC. The inclusion of the PRS did not improve the prediction accuracy compared to a reference model adjusting for age, sex, and genetic ancestry in either study and had lower predictive accuracy compared to models accounting for established stroke risk factors. These results demonstrate the necessity for PRS derivation in AAs, particularly for diseases that affect AAs disproportionately. Conclusion: This study highlights biologically plausible genetic determinants for incident stroke in hypertensive AAs. Ultimately, a better understanding of genetic risk factors for stroke in AAs may give new insight into stroke burden and potential clinical tools for those among the highest at risk.
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Affiliation(s)
- Nicole D Armstrong
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | | | - Amit Patki
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rikki M Tanner
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Bertha A Hidalgo
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hemant K Tiwari
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Nita A Limdi
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ethan M Lange
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Leslie A Lange
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Donna K Arnett
- College of Public Health, University of Kentucky, Lexington, KY, United States
| | - Marguerite R Irvin
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, United States
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3
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Song Y, Lee JK, Lee JO, Kwon B, Seo EJ, Suh DC. Whole Exome Sequencing in Patients with Phenotypically Associated Familial Intracranial Aneurysm. Korean J Radiol 2021; 23:101-111. [PMID: 34668355 PMCID: PMC8743149 DOI: 10.3348/kjr.2021.0467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/17/2021] [Accepted: 08/03/2021] [Indexed: 11/24/2022] Open
Abstract
Objective Familial intracranial aneurysms (FIAs) are found in approximately 6%–20% of patients with intracranial aneurysms (IAs), suggesting that genetic predisposition likely plays a role in its pathogenesis. The aim of this study was to identify possible IA-associated variants using whole exome sequencing (WES) in selected Korean families with FIA. Materials and Methods Among the 26 families in our institutional database with two or more IA-affected first-degree relatives, three families that were genetically enriched (multiple, early onset, or common site involvement within the families) for IA were selected for WES. Filtering strategies, including a family-based approach and knowledge-based prioritization, were applied to derive possible IA-associated variants from the families. A chromosomal microarray was performed to detect relatively large chromosomal abnormalities. Results Thirteen individuals from the three families were sequenced, of whom seven had IAs. We noted three rare, potentially deleterious variants (PLOD3 c.1315G>A, NTM c.968C>T, and CHST14 c.58C>T), which are the most promising candidates among the 11 potential IA-associated variants considering gene-phenotype relationships, gene function, co-segregation, and variant pathogenicity. Microarray analysis did not reveal any significant copy number variants in the families. Conclusion Using WES, we found that rare, potentially deleterious variants in PLOD3, NTM, and CHST14 genes are likely responsible for the subsets of FIAs in a cohort of Korean families.
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Affiliation(s)
- Yunsun Song
- Division of Neurointervention Clinic, Department of Radiology, Neurointervention Clinic, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong-Keuk Lee
- Asan Institute of Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin-Ok Lee
- Department of Laboratory Medicine, Medical Genetics Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Boseong Kwon
- Division of Neurointervention Clinic, Department of Radiology, Neurointervention Clinic, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eul-Ju Seo
- Department of Laboratory Medicine, Medical Genetics Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Dae Chul Suh
- Division of Neurointervention Clinic, Department of Radiology, Neurointervention Clinic, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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McDonough CW, Warren HR, Jack JR, Motsinger-Reif AA, Armstrong ND, Bis JC, House JS, Singh S, El Rouby NM, Gong Y, Mychaleckyj JC, Rotroff DM, Benavente OR, Caulfield MJ, Doria A, Pepine CJ, Psaty BM, Glorioso V, Glorioso N, Hiltunen TP, Kontula KK, Arnett DK, Buse JB, Irvin MR, Johnson JA, Munroe PB, Wagner MJ, Cooper-DeHoff RM. Adverse Cardiovascular Outcomes and Antihypertensive Treatment: A Genome-Wide Interaction Meta-Analysis in the International Consortium for Antihypertensive Pharmacogenomics Studies. Clin Pharmacol Ther 2021; 110:723-732. [PMID: 34231218 PMCID: PMC8672325 DOI: 10.1002/cpt.2355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 06/11/2021] [Indexed: 01/01/2023]
Abstract
We sought to identify genome-wide variants influencing antihypertensive drug response and adverse cardiovascular outcomes, utilizing data from four randomized controlled trials in the International Consortium for Antihypertensive Pharmacogenomics Studies (ICAPS). Genome-wide antihypertensive drug-single nucleotide polymorphism (SNP) interaction tests for four drug classes (β-blockers, n = 9,195; calcium channel blockers (CCBs), n = 10,511; thiazide/thiazide-like diuretics, n = 3,516; ACE-inhibitors/ARBs, n = 2,559) and cardiovascular outcomes (incident myocardial infarction, stroke, or death) were analyzed among patients with hypertension of European ancestry. Top SNPs from the meta-analyses were tested for replication of cardiovascular outcomes in an independent Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) study (n = 21,267), blood pressure (BP) response in independent ICAPS studies (n = 1,552), and ethnic validation in African Americans from the Genetics of Hypertension Associated Treatment study (GenHAT; n = 5,115). One signal reached genome-wide significance in the β-blocker-SNP interaction analysis (rs139945292, Interaction P = 1.56 × 10-8 ). rs139945292 was validated through BP response to β-blockers, with the T-allele associated with less BP reduction (systolic BP response P = 6 × 10-4 , Beta = 3.09, diastolic BP response P = 5 × 10-3 , Beta = 1.53). The T-allele was also associated with increased adverse cardiovascular risk within the β-blocker treated patients' subgroup (P = 2.35 × 10-4 , odds ratio = 1.57, 95% confidence interval = 1.23-1.99). The locus showed nominal replication in CHARGE, and consistent directional trends in β-blocker treated African Americans. rs139945292 is an expression quantitative trait locus for the 50 kb upstream gene NTM (neurotrimin). No SNPs attained genome-wide significance for any other drugs classes. Top SNPs were located near CALB1 (CCB), FLJ367777 (ACE-inhibitor), and CES5AP1 (thiazide). The NTM region is associated with increased risk for adverse cardiovascular outcomes and less BP reduction in β-blocker treated patients. Further investigation into this region is warranted.
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Affiliation(s)
- Caitrin W. McDonough
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Helen R. Warren
- Clinical Pharmacology Department, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- NIHR Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - John R. Jack
- Bioinformatics Research Center, Department of Statistics, North Carolina State University, Raleigh, North Carolina, USA
| | - Alison A. Motsinger-Reif
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, North Carolina, USA
| | - Nicole D. Armstrong
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Joshua C. Bis
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - John S. House
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Durham, North Carolina, USA
| | - Sonal Singh
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Nihal M. El Rouby
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Yan Gong
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Joesyf C. Mychaleckyj
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Daniel M. Rotroff
- Bioinformatics Research Center, Department of Statistics, North Carolina State University, Raleigh, North Carolina, USA
| | - Oscar R. Benavente
- Department of Neurology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mark J. Caulfield
- National Institute for Health Research, Barts Cardiovascular Biomedical Research Center, Queen Mary University of London, London, UK
| | - Alessandrio Doria
- Research Division, Joslin Diabetes Center; and Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Carl J. Pepine
- Division of Cardiovascular Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Bruce M. Psaty
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington, USA
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Valeria Glorioso
- Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milano, Italy
| | - Nicola Glorioso
- Department of Clinical, Surgical and Experimental Science, University of Sassari, Medical School, Sassari, Italy
| | - Timo P. Hiltunen
- Department of Medicine and Research Program for Clinical and Molecular Metabolism, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Kimmo K. Kontula
- Department of Medicine and Research Program for Clinical and Molecular Metabolism, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Donna K. Arnett
- College of Public Health, Dean’s Office, University of Kentucky, Lexington, Kentucky, USA
| | - John B. Buse
- Division of Endocrinology, Department of Medicine, UNC School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Marguerite R. Irvin
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Julie A. Johnson
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
- Division of Cardiovascular Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Patricia B. Munroe
- Clinical Pharmacology Department, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- NIHR Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Michael J. Wagner
- Center for Pharmacogenomics and Individualized Therapy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Rhonda M. Cooper-DeHoff
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida, Gainesville, Florida, USA
- Division of Cardiovascular Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida, USA
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5
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Asai M, Koike Y, Kuwatsuka Y, Yagi Y, Kashiyama K, Tanaka K, Mishima H, Yoshiura K, Utani A, Murota H. Multifaceted array-based keloidal gene expression profiling reveals specific MDFI upregulation in keloid lesions. Clin Exp Dermatol 2021; 46:1255-1261. [PMID: 33899950 DOI: 10.1111/ced.14698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Keloid lesions are characterized by mesenchymal cell proliferation and excessive extracellular matrix deposition. Previous microarray analyses have been performed to investigate the mechanism of keloid development. However, the molecular pathology that contributes to keloid development remains obscure. AIM To explore the underlying essential molecules of keloids using microarrays. METHODS We performed microarray analyses of keloid and nonlesional skin tissues both in vivo and in vitro. Gene expression levels were compared between tissues and cells. Quantitative reverse transcription (qRT)-PCR and immunohistochemical staining were used to determine the expression levels of molecules of interest in keloid tissues. RESULTS Several common molecules were upregulated in both keloid tissues and keloid-lesional fibroblasts. PTPRD and NTM were upregulated both in vivo and in vitro. The genes MDFI and ITGA4 were located at the centre of the gene coexpression network analysis using keloid tissues. qRT-PCR revealed significant expression levels of PTPRD and MDFI in keloid tissues. Immunopathological staining revealed that MDFI-positive cells, which have fibroblast characteristics, were located in the keloid-associated lymphoid tissue (KALT) portion of the keloid tissue. CONCLUSION Our gene expression profiles of keloids could distinguish the difference between lesional tissue and cultured lesional fibroblasts, and MDFI was found to be commonly expressed in both tissues and cells. Thus, MDFI-positive cells, which were located in the KALT, may play an important role in keloid pathogenesis and thus might be useful for in vitro keloid studies.
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Affiliation(s)
- M Asai
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Koike
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Kuwatsuka
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Yagi
- Department of Dermatology, Osaka Red Cross Hospital, Osaka, Japan
| | - K Kashiyama
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - K Tanaka
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - K Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - A Utani
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H Murota
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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6
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Yu X, Xia L, Jiang Q, Wei Y, Wei X, Cao S. Prevalence of Intracranial Aneurysm in Patients with Aortopathy: A Systematic Review with Meta-Analyses. J Stroke 2020; 22:76-86. [PMID: 32027793 PMCID: PMC7005354 DOI: 10.5853/jos.2019.01312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/21/2019] [Accepted: 10/15/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND PURPOSE Patients with aortic disease might have an increased risk of intracranial aneurysm (IA). We conducted this research to assess the prevalence of IA in patients with aortopathy, considering the impact of gender, age, and cardiovascular risk factors. METHODS We searched PubMed and Scopus from inception to August 2019 for epidemiological studies reporting the prevalence of IA in patients with aortopathy. Random-effect meta-analyses were performed to calculate the overall prevalence, and the effect of risk factors on the prevalence was also evaluated. Anatomical location of IAs in patients suffered from distinct aortic disease was extracted and further analyzed. RESULTS Thirteen cross-sectional studies involving 4,041 participants were included in this systematic review. We reported an estimated prevalence of 12% (95% confidence interval [CI], 9% to 14%) of IA in patients with aortopathy. The pooled prevalence of IA in patients with bicuspid aortic valve, coarctation of the aorta, aortic aneurysm, and aortic dissection was 8% (95% CI, 6% to 10%), 10% (95% CI, 7% to 14%), 12% (95% CI, 9% to 15%), and 23% (95% CI, 12% to 34%), respectively. Gender (female) and smoking are risk factors related to an increased risk of IA. The anatomical distribution of IAs was heterogeneously between participants with different aortic disease. CONCLUSIONS According to current epidemiological evidence, the prevalence of IA in patients with aortic disease is quadrupled compared to that in the general population, which suggests that an early IA screening should be considered among patients with aortic disease for timely diagnosis and treatment of IA.
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Affiliation(s)
- Xinyu Yu
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangtao Xia
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingqing Jiang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yupeng Wei
- Biological Science Department, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiang Wei
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Organ Transplantation, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- NHC Key Laboratory of Organ Transplantation, Wuhan, China
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Shiyi Cao
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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7
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Kurtelius A, Väntti N, Rezai Jahromi B, Tähtinen O, Manninen H, Koskenvuo J, Tulamo R, Kotikoski S, Nurmonen H, Kämäräinen OP, Huttunen T, Huttunen J, von Und Zu Fraunberg M, Koivisto T, Jääskeläinen JE, Lindgren AE. Association of Intracranial Aneurysms With Aortic Aneurysms in 125 Patients With Fusiform and 4253 Patients With Saccular Intracranial Aneurysms and Their Family Members and Population Controls. J Am Heart Assoc 2019; 8:e013277. [PMID: 31538843 PMCID: PMC6818001 DOI: 10.1161/jaha.119.013277] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Varying degrees of co‐occurrence of intracranial aneurysms (IA) and aortic aneurysms (AA) have been reported. We sought to compare the risk for AA in fusiform intracranial aneurysms (fIA) and saccular intracranial aneurysms (sIA) disease and evaluate possible genetic connection between the fIA disease and AAs. Additionally, the characteristics and aneurysms of the fIA and sIA patients were compared. Methods and Results The Kuopio Intracranial Aneurysm Database includes all 4253 sIA and 125 fIA patients from its Eastern Finnish catchment population, and 13 009 matched population controls and 18 455 first‐degree relatives to the IA patients were identified, and the Finnish national registers were used to identify the individuals with AA. A total of 33 fIA patients were studied using an exomic gene panel of 37 genes associated with AAs. Seventeen (14.4%) fIA patients and 48 (1.2%) sIA patients had a diagnosis of AA. Both fIA and sIA patients had AAs significantly more often than their controls (1.2% and 0.5%) or relatives (0.9% and 0.3%). In a competing risks Cox regression model, the presence of fIA was the strongest risk factor for AA (subdistribution hazard ratio 7.6, 95% CI 3.9–14.9, P<0.0005). One likely pathogenic variant in COL5A2 and 3 variants of unknown significance were identified in MYH11,COL11A1, and FBN1 in 4 fIA patients. Conclusions The prevalence of AAs is increased slightly in sIA patients and significantly in fIA patients. fIA patients are older and have more comorbid diseases than sIA patients but this alone does not explain their clinically significant AA risk.
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Affiliation(s)
- Arttu Kurtelius
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Nelli Väntti
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Behnam Rezai Jahromi
- Department of Neurosurgery Helsinki University Hospital University of Helsinki Finland
| | - Olli Tähtinen
- Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland.,Department of Clinical Radiology Kuopio University Hospital Kuopio Finland
| | - Hannu Manninen
- Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland.,Department of Clinical Radiology Kuopio University Hospital Kuopio Finland
| | - Juha Koskenvuo
- Blueprint Genetics Helsinki Finland.,Department of Clinical Physiology and Nuclear Medicine Turku University Hospital Turku Finland
| | - Riikka Tulamo
- Department of Vascular Surgery Helsinki University Hospital University of Helsinki Finland
| | - Satu Kotikoski
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Heidi Nurmonen
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Olli-Pekka Kämäräinen
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Terhi Huttunen
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Jukka Huttunen
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Mikael von Und Zu Fraunberg
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Timo Koivisto
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Juha E Jääskeläinen
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
| | - Antti E Lindgren
- Neurosurgery NeuroCenter Kuopio University Hospital Kuopio Finland.,Institute of Clinical Medicine Faculty of Health Sciences University of Eastern Finland Kuopio Finland
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8
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Massive intracranial bleeding due to the rupture of a rare spontaneous pseudoaneurysm of the middle cerebral artery in a pediatric patient: case report with clinical, radiological, and pathologic findings. Forensic Sci Med Pathol 2019; 15:474-480. [PMID: 31218656 DOI: 10.1007/s12024-019-00122-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2019] [Indexed: 10/26/2022]
Abstract
Intracranial pseudoaneurysm (IPA) is a rare but likely underdiagnosed cause of intracranial hemorrhage, which accounts for just 1-6% of all intracranial aneurysms. Spontaneous IPAs are exceptionally rare, and their etiology and features are not well defined. Herein, we report a case of a pediatric patient who died from massive intracranial bleeding due to the rupture of a spontaneous IPA after undergoing multiple radiological studies and neurosurgical operations. At the postmortem examination of the brain, a giant size pseudoaneurysm of the right middle cerebral artery was observed. Microscopic examination demonstrated variable wall thickness and dense fibrosis focally in the vessel wall with disruption of the media structure together with a loss and fragmentation of the elastic laminae, loss of organization of smooth muscle cells in the media, and multifocal areas of hemorrhage throughout the vessel wall, as well as direct evidence of wall dissection. Since IPAs without any traumatic or infective history are extremely uncommon, further pathologic studies should be performed to clarify spontaneous pseudoaneurysm etiology.
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Luukkonen TM, Mehrjouy MM, Pöyhönen M, Anttonen A, Lahermo P, Ellonen P, Paulin L, Tommerup N, Palotie A, Varilo T. Breakpoint mapping and haplotype analysis of translocation t(1;12)(q43;q21.1) in two apparently independent families with vascular phenotypes. Mol Genet Genomic Med 2018; 6:56-68. [PMID: 29168350 PMCID: PMC5823676 DOI: 10.1002/mgg3.346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The risk of serious congenital anomaly for de novo balanced translocations is estimated to be at least 6%. We identified two apparently independent families with a balanced t(1;12)(q43;q21.1) as an outcome of a "Systematic Survey of Balanced Chromosomal Rearrangements in Finns." In the first family, carriers (n = 6) manifest with learning problems in childhood, and later with unexplained neurological symptoms (chronic headache, balance problems, tremor, fatigue) and cerebral infarctions in their 50s. In the second family, two carriers suffer from tetralogy of Fallot, one from transient ischemic attack and one from migraine. The translocation cosegregates with these vascular phenotypes and neurological symptoms. METHODS AND RESULTS We narrowed down the breakpoint regions using mate pair sequencing. We observed conserved haplotypes around the breakpoints, pointing out that this translocation has arisen only once. The chromosome 1 breakpoint truncates a CHRM3 processed transcript, and is flanked by the 5' end of CHRM3 and the 3' end of RYR2. TRHDE, KCNC2, and ATXN7L3B flank the chromosome 12 breakpoint. CONCLUSIONS This study demonstrates a balanced t(1;12)(q43;q21.1) with conserved haplotypes on the derived chromosomes. The translocation seems to result in vascular phenotype, with or without neurological symptoms, in at least two families. We suggest that the translocation influences the positional expression of CHRM3, RYR2, TRHDE, KCNC2, and/or ATXN7L3B.
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Affiliation(s)
- Tiia Maria Luukkonen
- Institute for molecular medicine Finland FIMMUniversity of HelsinkiHelsinkiFinland
- Department of HealthNational Institute for Health and WelfareHelsinkiFinland
| | - Mana M. Mehrjouy
- Wilhelm Johannsen Centre for Functional Genome ResearchDepartment of Cellular and Molecular MedicineUniversity of CopenhagenCopenhagenDenmark
| | - Minna Pöyhönen
- Clinical GeneticsHelsinki University HospitalUniversity of HelsinkiHelsinkiFinland
- Department of Medical GeneticsUniversity of HelsinkiHelsinkiFinland
| | | | - Päivi Lahermo
- Institute for molecular medicine Finland FIMMUniversity of HelsinkiHelsinkiFinland
| | - Pekka Ellonen
- Institute for molecular medicine Finland FIMMUniversity of HelsinkiHelsinkiFinland
| | - Lars Paulin
- Institute of BiotechnologyUniversity of HelsinkiHelsinkiFinland
| | - Niels Tommerup
- Wilhelm Johannsen Centre for Functional Genome ResearchDepartment of Cellular and Molecular MedicineUniversity of CopenhagenCopenhagenDenmark
| | - Aarno Palotie
- Institute for molecular medicine Finland FIMMUniversity of HelsinkiHelsinkiFinland
- Broad Institute of Harvard and MITCambridgeMAUSA
| | - Teppo Varilo
- Department of HealthNational Institute for Health and WelfareHelsinkiFinland
- Department of Medical GeneticsUniversity of HelsinkiHelsinkiFinland
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Vanaveski T, Singh K, Narvik J, Eskla KL, Visnapuu T, Heinla I, Jayaram M, Innos J, Lilleväli K, Philips MA, Vasar E. Promoter-Specific Expression and Genomic Structure of IgLON Family Genes in Mouse. Front Neurosci 2017; 11:38. [PMID: 28210208 PMCID: PMC5288359 DOI: 10.3389/fnins.2017.00038] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 01/19/2017] [Indexed: 01/20/2023] Open
Abstract
IgLON family is composed of five genes: Lsamp, Ntm, Opcml, Negr1, and Iglon5; encoding for five highly homologous neural adhesion proteins that regulate neurite outgrowth and synapse formation. In the current study we performed in silico analysis revealing that Ntm and Opcml display similar genomic structure as previously reported for Lsamp, characterized by two alternative promotors 1a and 1b. Negr1 and Iglon5 transcripts have uniform 5′ region, suggesting single promoter. Iglon5, the recently characterized family member, shares high level of conservation and structural qualities characteristic to IgLON family such as N-terminal signal peptide, three Ig domains, and GPI anchor binding site. By using custom 5′-isoform-specific TaqMan gene-expression assay, we demonstrated heterogeneous expression of IgLON transcripts in different areas of mouse brain and several-fold lower expression in selected tissues outside central nervous system. As an example, the expression of IgLON transcripts in urogenital and reproductive system is in line with repeated reports of urogenital tumors accompanied by mutations in IgLON genes. Considering the high levels of intra-family homology shared by IgLONs, we investigated potential compensatory effects at the level of IgLON isoforms in the brains of mice deficient of one or two family members. We found that the lack of IgLONs is not compensated by a systematic quantitative increase of the other family members. On the contrary, the expression of Ntm 1a transcript and NEGR1 protein was significantly reduced in the frontal cortex of Lsamp-deficient mice suggesting that the expression patterns within IgLON family are balanced coherently. The actions of individual IgLONs, however, can be antagonistic as demonstrated by differential expression of Syp in deletion mutants of IgLONs. In conclusion, we show that the genomic twin-promoter structure has impact on both anatomical distribution and intra-family interactions of IgLON family members. Remarkable variety in the activity levels of 1a and 1b promoters both in the brain and in other tissues, suggests complex functional regulation of IgLONs by alternative signal peptides driven by 1a and 1b promoters.
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Affiliation(s)
- Taavi Vanaveski
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Katyayani Singh
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Jane Narvik
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Kattri-Liis Eskla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Tanel Visnapuu
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of TartuTartu, Estonia; Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of HelsinkiHelsinki, Finland
| | - Indrek Heinla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Mohan Jayaram
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Jürgen Innos
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Kersti Lilleväli
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Mari-Anne Philips
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
| | - Eero Vasar
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu Tartu, Estonia
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11
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Mazitov T, Bregin A, Philips MA, Innos J, Vasar E. Deficit in emotional learning in neurotrimin knockout mice. Behav Brain Res 2016; 317:311-318. [PMID: 27693610 DOI: 10.1016/j.bbr.2016.09.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 09/04/2016] [Accepted: 09/27/2016] [Indexed: 10/20/2022]
Abstract
Neurotrimin (Ntm) belongs to the IgLON family of cell adhesion molecules with Lsamp, Obcam and kilon that regulate the outgrowth of neurites mostly by forming heterodimers. IgLONs have been associated with psychiatric disorders, intelligence, body weight, heart disease and tumours. This study provides an initial behavioural and pharmacological characterization of the phenotype of Ntm-deficient mice. We expected to see at least some overlap with the phenotype of Lsamp-deficient mice as Ntm and Lsamp are the main interaction partners in the IgLON family and are colocalized in some brain regions. However, Ntm-deficient mice displayed none of the deviations in behaviour that we have previously shown in Lsamp-deficient mice, but differently from Lsamp-deficient mice, had a deficit in emotional learning in the active avoidance task. The only overlap was decreased sensitivity to the locomotor stimulating effect of amphetamine in both knockout models. Thus, despite being interaction partners, on the behavioural level Lsamp seems to play a much more central role than Ntm and the roles of these two proteins seem to be complementary rather than overlapping.
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Affiliation(s)
- Timur Mazitov
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; Centre of Excellence in Genomics and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Aleksandr Bregin
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; Centre of Excellence in Genomics and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Mari-Anne Philips
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; Centre of Excellence in Genomics and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Jürgen Innos
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; Centre of Excellence in Genomics and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia.
| | - Eero Vasar
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; Centre of Excellence in Genomics and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
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12
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Linares Chávez EP, Toral López J, Valdés Miranda JM, González Huerta LM, Perez Cabrera A, Del Refugio Rivera Vega M, Messina Baas OM, Cuevas-Covarrubias SA. Jacobsen Syndrome: Surgical Complications due to Unsuspected Diagnosis, the Importance of Molecular Studies in Patients with Craniosynostosis. Mol Syndromol 2015; 6:229-35. [PMID: 26997943 DOI: 10.1159/000442477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2015] [Indexed: 11/19/2022] Open
Abstract
Jacobsen syndrome (JBS) is an uncommon contiguous gene syndrome. About 85-92% of cases have a de novo origin. Clinical variability and severity probably depend on the size of the affected region. The typical clinical features in JBS include intellectual disability, growth retardation, craniofacial dysmorphism as well as craniosynostosis, congenital heart disease, and platelet abnormalities. The proband was a 1 year/3-month-old Mexican male. Oligonucleotide-SNP array analysis using the GeneChip Human Cytoscan HD was carried out for the patient from genomic DNA. The SNP array showed a 14.2-Mb deletion in chromosome 11q23.3q25 (120,706-134,938 Mb), which involved 163 RefSeq genes in the database of genomic variation. We report a novel deletion in JBS that increases the knowledge of the variability in the mutation sites in this region and expands the spectrum of molecular and clinical defects in this syndrome.
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Affiliation(s)
- Etzalli P Linares Chávez
- Departamento de Genética Médica, Universidad Nacional Autónoma de México (UNAM), Mexico City, México
| | - Jaime Toral López
- Departamento de Genética Médica, Centro Médico Ecatepec, ISSEMYM, Edomex México, México
| | - Juan M Valdés Miranda
- Departamento de Genética Médica, Universidad Nacional Autónoma de México (UNAM), Mexico City, México
| | - Luz M González Huerta
- Departamento de Genética Médica, Universidad Nacional Autónoma de México (UNAM), Mexico City, México
| | - Adrian Perez Cabrera
- Departamento de Genética Médica, Universidad Nacional Autónoma de México (UNAM), Mexico City, México
| | | | - Olga M Messina Baas
- Departamento de Genética Médica, Oftalmología, Hospital General de México, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, México
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13
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Verdure P, Gilard V, Guyant-Maréchal L, Belien J, Cebula H, Hannequin D, Dacher JN, Johannides R, Proust F. Familial intracranial aneurysm, the relationship of the aortic diameter. Neurochirurgie 2015; 61:385-91. [PMID: 26597604 DOI: 10.1016/j.neuchi.2015.08.001] [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: 02/17/2015] [Revised: 05/11/2015] [Accepted: 08/10/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Familial predisposition appears as an identified risk factor for cerebrovascular disease. The primary objective of our study was to assess intracranial aneurysm (IA) recurrence rate in a population of familial IA. Secondary objectives were first to analyse the inheritance categorisation/pattern of these families and second to assess the correlation between the aortic diameter on MRI and the aneurysmal characteristics. PATIENTS AND METHODS Over a period of 20 years (1990-2010), 26 patients from 23 families, identified from a regional register, accepted to participate in this prospective trial in order to determine, the inheritance pattern, the screening of de novo aneurysms by CT angioscan, and the aortic mensuration by MRI. The transmission pattern was categorised into autosomal dominant inheritance, autosomal recessive and autosomal dominance with incomplete penetrance. The aortic diameter was measured: anatomic coverage in the caudo-cranial direction from the iliac arteries to the ventriculo-aortic junction. RESULTS All 26 patients [from 55.4 ± 11.2 years, sex ratio female/male: 1.36] were reviewed after a mean follow-up of 7.9 ± 6.6 years after the diagnosis of a cerebral aneurysm. The characteristics of this population were the diagnostic circumstances such as a subarachnoid hemorrhage (SAH) in 14 (53.8%), the multiple locations in 10 (38.5%) and a giant aneurysm in 4 (15.4%). Four de novo aneurysms were diagnosed in 3 patients (11.5%) after a mean follow-up of 22.3 ± 4 years, which corresponds to an annual incidence of 1.9 (95% CI 1.4-2.6%). The transmission pattern was autosomal dominant in 16 (61.5%), recessive in 3 (11.5%) and not defined in 7 (26.9%). As regards the aortic diameter, a significant decrease in the aortic diameter was observed in patients with an aneurysmal diameter superior to 10mm. CONCLUSION The rate of de novo aneurysm justifies prolonged monitoring by imaging of these patients with familial intracranial aneurysm. The narrowing of the terminal part of the aorta could be a hemodynamic factor involved into the IA development.
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Affiliation(s)
- P Verdure
- Department of Neurosurgery, Rouen University Hospital, Rouen, France
| | - V Gilard
- Department of Neurosurgery, Rouen University Hospital, Rouen, France
| | - L Guyant-Maréchal
- Department of Neurophysiology, Rouen University Hospital, Rouen, France
| | - J Belien
- Department of Pharmacology, Rouen University Hospital, Rouen, France
| | - H Cebula
- Department of Neurosurgery, Hôpital Hautepierre, Strasbourg University Hospital, 67000 Strasbourg cedex, France
| | - D Hannequin
- Department of Neurology, Rouen University Hospital, Rouen, France
| | - J-N Dacher
- Department of Radiology, Rouen University Hospital, Rouen, France
| | - R Johannides
- Department of Pharmacology, Rouen University Hospital, Rouen, France
| | - F Proust
- Department of Neurosurgery, Rouen University Hospital, Rouen, France; Inserm U982, Neuronal and Neuroendocrine Communication and Differenciation, Rouen University, Rouen, France; Department of Neurosurgery, Hôpital Hautepierre, Strasbourg University Hospital, 67000 Strasbourg cedex, France.
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14
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Li C, Bazzano LAL, Rao DC, Hixson JE, He J, Gu D, Gu CC, Shimmin LC, Jaquish CE, Schwander K, Liu DP, Huang J, Lu F, Cao J, Chong S, Lu X, Kelly TN. Genome-wide linkage and positional association analyses identify associations of novel AFF3 and NTM genes with triglycerides: the GenSalt study. J Genet Genomics 2015; 42:107-17. [PMID: 25819087 DOI: 10.1016/j.jgg.2015.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/06/2015] [Accepted: 02/10/2015] [Indexed: 01/17/2023]
Abstract
We conducted a genome-wide linkage scan and positional association study to identify genes and variants influencing blood lipid levels among participants of the Genetic Epidemiology Network of Salt-Sensitivity (GenSalt) study. The GenSalt study was conducted among 1906 participants from 633 Han Chinese families. Lipids were measured from overnight fasting blood samples using standard methods. Multipoint quantitative trait genome-wide linkage scans were performed on the high-density lipoprotein, low-density lipoprotein, and log-transformed triglyceride phenotypes. Using dense panels of single nucleotide polymorphisms (SNPs), single-marker and gene-based association analyses were conducted to follow-up on promising linkage signals. Additive associations between each SNP and lipid phenotypes were tested using mixed linear regression models. Gene-based analyses were performed by combining P-values from single-marker analyses within each gene using the truncated product method (TPM). Significant associations were assessed for replication among 777 Asian participants of the Multi-ethnic Study of Atherosclerosis (MESA). Bonferroni correction was used to adjust for multiple testing. In the GenSalt study, suggestive linkage signals were identified at 2p11.2‒2q12.1 [maximum multipoint LOD score (MML) = 2.18 at 2q11.2] and 11q24.3‒11q25 (MML = 2.29 at 11q25) for the log-transformed triglyceride phenotype. Follow-up analyses of these two regions revealed gene-based associations of charged multivesicular body protein 3 (CHMP3), ring finger protein 103 (RNF103), AF4/FMR2 family, member 3 (AFF3), and neurotrimin (NTM) with triglycerides (P = 4 × 10(-4), 1.00 × 10(-5), 2.00 × 10(-5), and 1.00 × 10(-7), respectively). Both the AFF3 and NTM triglyceride associations were replicated among MESA study participants (P = 1.00 × 10(-7) and 8.00 × 10(-5), respectively). Furthermore, NTM explained the linkage signal on chromosome 11. In conclusion, we identified novel genes associated with lipid phenotypes in linkage regions on chromosomes 2 and 11.
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Affiliation(s)
- Changwei Li
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA
| | - Lydia A L Bazzano
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA; Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Dabeeru C Rao
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO 63110-1093, USA
| | - James E Hixson
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA
| | - Jiang He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA; Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Dongfeng Gu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Charles C Gu
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO 63110-1093, USA
| | - Lawrence C Shimmin
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA
| | - Cashell E Jaquish
- Division of Prevention and Population Sciences, National Heart, Lung, Blood Institute, Bethesda, MD 20892-7936, USA
| | - Karen Schwander
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO 63110-1093, USA
| | - De-Pei Liu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Jianfeng Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Fanghong Lu
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Ji'nan 250062, China
| | - Jie Cao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Shen Chong
- Department of Epidemiology and Biostatistics, Nanjing Medical University School of Public Health, Nanjing 210029, China
| | - Xiangfeng Lu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Tanika N Kelly
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA.
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15
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Ye M, Parente F, Li X, Perryman MB, Zelante L, Wynshaw-Boris A, Chen J, Grossfeld P. Gene-targeted deletion ofOPCMLandNeurotriminin mice does not yield congenital heart defects. Am J Med Genet A 2014; 164A:966-74. [DOI: 10.1002/ajmg.a.36441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 12/26/2013] [Indexed: 01/20/2023]
Affiliation(s)
- Maoqing Ye
- Key Laboratory of Arrhythmia, Ministry of Education, East Hospital; Tongji University School of Medicine; Shanghai China
- Department of Pediatrics; UCSD School of Medicine; San Diego California
| | - Fabienne Parente
- Department of Medicine; UCSD School of Medicine; San Diego California
| | - Xiaodong Li
- Department of Medicine; UCSD School of Medicine; San Diego California
| | | | - Leopoldo Zelante
- Medical Genetics Service; IRCCS-CSS Hospital; San Giovanni Rotondo Italy
| | | | - Ju Chen
- Department of Medicine; UCSD School of Medicine; San Diego California
| | - Paul Grossfeld
- Department of Pediatrics; UCSD School of Medicine; San Diego California
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16
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Dusak A, Kamasak K, Goya C, Adin ME, Elbey MA, Bilici A. Arterial distensibility in patients with ruptured and unruptured intracranial aneurysms: is it a predisposing factor for rupture risk? Med Sci Monit 2013; 19:703-9. [PMID: 23974299 PMCID: PMC3762537 DOI: 10.12659/msm.889032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background A risk factor assessment that reliably predicts whether patients are predisposed to intracranial aneurysm (IA) rupture has yet to be formulated. As such, the clinical management of unruptured IA remains unclear. Our aim was to determine whether impaired arterial distensibility and hypertrophic remodeling might be indicators of risk for IA rupture. Material/Methods The study population (n=49) was selected from consecutive admissions for either unruptured IA (n=23) or ruptured IA (n=26) from January to December 2010. Hemodynamic measures were taken from every patient, including systolic and diastolic blood pressure using a sphygmomanometer. Unruptured IA and ruptured IA characteristics, including aneurysmal shape, size, angle, aspect ratio, and bottleneck factor, were measured and calculated from transverse brain CT angiography images. With ultrasound, the right common carotid artery intima-media thickness was measured, as well as the lumen diameter during systole and diastole. Arterial wall strain, distensibility, stiffness index, and elastic modulus were calculated and compared between patients with unruptured IAs and ruptured IAs. A p-value less than 0.05 was considered statistically significant. Results General demographic data did not differ between patients with unruptured IAs and ruptured IAs. Greater mean intima-media thickness (p=0.013), mean stiffness index (p=0.044), and mean elastic modulus (p=0.026) were observed for patients with ruptured IAs. Moreover, mean strain (p=0.013) and mean distensibility (p=0.024) were decreased in patients with ruptured IAs. Conclusions Patients with ruptured IAs demonstrated decreased arterial distensibility and increased intima-media thickness at the level of the carotid arteries. By measuring these parameters via ultrasound, it may be possible to predict whether patients with existing IAs might rupture and hemorrhage into the subarachnoid space.
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Affiliation(s)
- Abdurrahim Dusak
- Department of Radiology, Dicle University School of Medicine, Diyarbakir, Turkey
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