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Ren J, Wu J, Tang X, Chen S, Wang W, Lv Y, Wu L, Yang D, Zheng Y. Ageing- and AAA-associated differentially expressed proteins identified by proteomic analysis in mice. PeerJ 2022; 10:e13129. [PMID: 35637715 PMCID: PMC9147329 DOI: 10.7717/peerj.13129] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/25/2022] [Indexed: 01/12/2023] Open
Abstract
Background Abdominal aortic aneurysm (AAA) is a disease of high prevalence in old age, and its incidence gradually increases with increasing age. There were few studies about differences in the circulatory system in the incidence of AAA, mainly because younger patients with AAA are fewer and more comorbid nonatherosclerotic factors. Method We induced AAA in ApoE-/- male mice of different ages (10 or 24 weeks) and obtained plasma samples. After the top 14 most abundant proteins were detected, the plasma was analyzed by a proteomic study using the data-dependent acquisition (DDA) technique. The proteomic results were compared between different groups to identify age-related differentially expressed proteins (DEPs) in the circulation that contribute to AAA formation. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and protein-protein interaction (PPI) network analyses were performed by R software. The top 10 proteins were determined with the MCC method of Cytoscape, and transcription factor (TF) prediction of the DEPs was performed with iRegulon (Cytoscape). Results The aortic diameter fold increase was higher in the aged group than in the youth group (p < 0.01). Overall, 92 DEPs related to age and involved in AAA formation were identified. GO analysis of the DEPs showed enrichment of the terms wounding healing, response to oxidative stress, regulation of body fluid levels, ribose phosphate metabolic process, and blood coagulation. The KEGG pathway analysis showed enrichment of the terms platelet activation, complement and coagulation cascades, glycolysis/gluconeogenesis, carbon metabolism, biosynthesis of amino acids, and ECM-receptor interaction. The top 10 proteins were Tpi1, Eno1, Prdx1, Ppia, Prdx6, Vwf, Prdx2, Fga, Fgg, and Fgb, and the predicted TFs of these proteins were Nfe2, Srf, Epas1, Tbp, and Hoxc8. Conclusion The identified proteins related to age and involved in AAA formation were associated with the response to oxidative stress, coagulation and platelet activation, and complement and inflammation pathways, and the TFs of these proteins might be potential targets for AAA treatments. Further experimental and biological studies are needed to elucidate the role of these age-associated and AAA-related proteins in the progression of AAA.
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Affiliation(s)
- Jinrui Ren
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China,State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianqiang Wu
- State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China,State Key Laboratory of Complex Severe and Rare Diseases, Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoyue Tang
- State Key Laboratory of Complex Severe and Rare Diseases, Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Siliang Chen
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Wei Wang
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Yanze Lv
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Lianglin Wu
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China
| | - Dan Yang
- Department of Computational Biology and Bioinformatics, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuehong Zheng
- Department of Vascular Surgery, Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, China,State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Hou Y, Guo W, Fan T, Li B, Ge W, Gao R, Wang J. Advanced Research of Abdominal Aortic Aneurysms on Metabolism. Front Cardiovasc Med 2021; 8:630269. [PMID: 33614752 PMCID: PMC7892590 DOI: 10.3389/fcvm.2021.630269] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/05/2021] [Indexed: 01/16/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a cardiovascular disease with a high risk of death, seriously threatening the life and health of people. The specific pathogenesis of AAA is still not fully understood. In recent years, researchers have found that amino acid, lipid, and carbohydrate metabolism disorders play important roles in the occurrence and development of AAA. This review is aimed to summarize the latest research progress of the relationship between AAA progression and body metabolism. The body metabolism is closely related to the occurrence and development of AAA. It is necessary to further investigate the pathogenesis of AAA from the perspective of metabolism to provide theoretical basis for AAA diagnosis and drug development.
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Affiliation(s)
- Yangfeng Hou
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Wenjun Guo
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Tianfei Fan
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Bolun Li
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Weipeng Ge
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Ran Gao
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medicine, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
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Zhang H, Yin D, Zhao Y, Li Y, Yao D, Sun D. Relationship between total plasma homocysteine and the risk of aneurysms - a meta-analysis. VASA 2020; 50:110-115. [PMID: 32933402 DOI: 10.1024/0301-1526/a000891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Our meta-analysis focused on the relationship between homocysteine (Hcy) level and the incidence of aneurysms and looked at the relationship between smoking, hypertension and aneurysms. A systematic literature search of Pubmed, Web of Science, and Embase databases (up to March 31, 2020) resulted in the identification of 19 studies, including 2,629 aneurysm patients and 6,497 healthy participants. Combined analysis of the included studies showed that number of smoking, hypertension and hyperhomocysteinemia (HHcy) in aneurysm patients was higher than that in the control groups, and the total plasma Hcy level in aneurysm patients was also higher. These findings suggest that smoking, hypertension and HHcy may be risk factors for the development and progression of aneurysms. Although the heterogeneity of meta-analysis was significant, it was found that the heterogeneity might come from the difference between race and disease species through subgroup analysis. Large-scale randomized controlled studies of single species and single disease species are needed in the future to supplement the accuracy of the results.
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Affiliation(s)
- Hanji Zhang
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun City, Jilin Province, China
| | - Dexin Yin
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun City, Jilin Province, China
| | - Yue Zhao
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun City, Jilin Province, China
| | - Yezhou Li
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun City, Jilin Province, China
| | - Dejiang Yao
- Department of Chinese medicine, Third department of surgery, The Center Hospital of Enshi Tujia and Miao Autonomous Prefecture, Wuhan University, Enshi City, Hubei Province, China
| | - Dajun Sun
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun City, Jilin Province, China
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Deng J, Liu J, Cao L, Wang Q, Zhang H, Liu X, Guo W. The Association between Hyperhomocysteinemia and Thoracoabdominal Aortic Aneurysms in Chinese Population. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4691026. [PMID: 32775423 PMCID: PMC7407013 DOI: 10.1155/2020/4691026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/02/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To shed light on the association between hyperhomocysteinemia (HHcy) and thoracoabdominal aortic aneurysms (TAAAs). METHODS From July 2013 to March 2017, we conducted a matched case-control study involving individuals who presented to the Chinese People's Liberation Army General Hospital and underwent thoracoabdominal magnetic resonance angiography or computed tomography angiography. A total of 73 patients with TAAAs were enrolled in the case group, and 219 sex-matched subjects without TAAAs were included in the control group. We then examined the relationship between HHcy and TAAAs by logistic regression models and subgroup as well as interaction analyses. RESULTS Serum total homocysteine (tHcy) concentrations and the proportion of HHcy were significantly higher in the patients with TAAAs than in those without TAAAs (P < 0.001). Furthermore, the multivariate logistic regression models indicated that participants with HHcy had a 2.14-fold higher risk of TAAAs than those with a normal serum tHcy level (adjusted odds ratio (OR), 2.14; 95% confidence interval, 1.00-4.56). Similarly, each 1 μmol/L increase in the serum tHcy concentration was associated with a 4% higher risk of TAAAs (adjusted OR, 1.04; 95% confidence interval, 1.00-1.07). Subgroup analyses indicated that HHcy tended to be associated with a greater risk of TAAAs in all stratified subgroups (adjusted ORs > 1). Furthermore, the interaction analyses revealed no interactive role in the association between HHcy and TAAAs. CONCLUSIONS The present case-control study suggests that HHcy is an independent risk factor for TAAAs. Larger prospective cohort studies are warranted to validate these findings.
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Affiliation(s)
- Jianqing Deng
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Jie Liu
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Long Cao
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
- Department of General Surgery, Chinese PLA No.983 Hospital, Tianjin, China
| | - Qun Wang
- Department of Neurosurgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Hongpeng Zhang
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xiaoping Liu
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
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Wang H, Wei G, Cheng S, Wang D, Ma J, Xin S. Circulatory CD4-Positive T-Lymphocyte Imbalance Mediated by Homocysteine-Induced AIM2 and NLRP1 Inflammasome Upregulation and Activation Is Associated with Human Abdominal Aortic Aneurysm. J Vasc Res 2020; 57:276-290. [DOI: 10.1159/000508077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/17/2020] [Indexed: 11/19/2022] Open
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Fan Y, Li N, Liu C, Dong H, Hu X. Excessive Methionine Supplementation Exacerbates the Development of Abdominal Aortic Aneurysm in Rats. J Vasc Res 2019; 56:230-240. [PMID: 31307051 DOI: 10.1159/000501313] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/04/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The relationship between methionine (Met) and abdominal aortic aneurysm (AAA) has been previously demonstrated, but the mechanisms controlling this association remain unclear. This study investigated the potential contribution of hypermethioninemia (HMet) to the development of AAA. METHODS A model of AAA was induced by intraluminal porcine pancreatic elastase (PPE) infusion in 60 male Sprague-Dawley rats divided into 4 groups (n = 15 per group). Met was supplied by intragastric administration (1 g/kg body weight/day) from 1 week before surgery until 4 weeks after surgery. The aortic diameter was measured by ultrasound. Aortas were collected 4 weeks after surgery and subjected to biochemical analysis, histological assays, and transmission electron microscopy. RESULTS After 5 weeks of Met supplementation, HMet increased the dilation ratio of the HMet + PPE group, and hyperhomocysteinemia was also induced in HMet and HMet + PPE rats. Increased matrix metalloproteinase-2 (MMP-2), osteopontin, and interleukin-6 expression was detected in HMet + PPE rats. Furthermore, increased autophagy was detected in the HMet + PPE group. CONCLUSION This study demonstrates that HMet may exacerbate the formation of AAA due to the increased dilation ratio partially via enhancing MMP-2 and inflammatory responses.
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Affiliation(s)
- Yichuan Fan
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Nan Li
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Chengwei Liu
- Division of Vascular Surgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Haipeng Dong
- Department of Cardiothoracic Vascular Surgery, Affiliated Hospital of Beihua University, Jilin City, China
| | - Xinhua Hu
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China,
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Dymara-Konopka W, Laskowska M. The Role of Nitric Oxide, ADMA, and Homocysteine in The Etiopathogenesis of Preeclampsia-Review. Int J Mol Sci 2019; 20:ijms20112757. [PMID: 31195628 PMCID: PMC6600256 DOI: 10.3390/ijms20112757] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/18/2022] Open
Abstract
Preeclampsia is a serious, pregnancy-specific, multi-organ disease process of compound aetiology. It affects 3–6% of expecting mothers worldwide and it persists as a leading cause of maternal and foetal morbidity and mortality. In fact, hallmark features of preeclampsia (PE) result from vessel involvement and demonstrate maternal endothelium as a target tissue. Growing evidence suggests that chronic placental hypoperfusion triggers the production and release of certain agents that are responsible for endothelial activation and injury. In this review, we will present the latest findings on the role of nitric oxide, asymmetric dimethylarginine (ADMA), and homocysteine in the etiopathogenesis of preeclampsia and their possible clinical implications.
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Affiliation(s)
- Weronika Dymara-Konopka
- Department of Obstetrics and Perinatology, Medical University of Lublin, Poland, 20-950 Lublin, Jaczewskiego 8, Poland.
| | - Marzena Laskowska
- Department of Obstetrics and Perinatology, Medical University of Lublin, Poland, 20-950 Lublin, Jaczewskiego 8, Poland.
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Valdivia AR, Fuente MF, Santos AD, Ureña MG, Lozano AR, Guaita JO, Zúñiga CG, Donas K, Ruiz JS. Impact of the Aortic Graft on Arterial Stiffness and Inflammatory Biomarkers after Endovascular Aortic Repair or Open Surgical Repair in Abdominal Aortic Aneurysm Disease. Ann Vasc Surg 2019; 59:84-90. [PMID: 30802592 DOI: 10.1016/j.avsg.2018.12.092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 12/15/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is an important cardiovascular (CV)-related disease that requires surgical treatment to prevent rupture. The elevation of arterial stiffness (AS) is an increasingly recognized independent determinant of CV morbidity and mortality and plays a special role in atherosclerosis. The importance of the surgical technique used for AAA repair in the long-term outcomes still needs to be clarified, and whether endovascular aortic repair (EVAR) or open surgical repair (OSR) confers high AS measurements and thus worse prognosis in terms of CV morbidity needs further investigation. METHODS A prospective nonrandomized study that included consecutive patients requiring either EVAR or OSR for AAA disease between February 2015 and January 2016 was conducted. This study is registered on the National Institutes of Health website (ClinicalTrials.gov) and identified with NCT02642952. Several noninvasive measurements of AS and central aortic hemodynamics were obtained before surgery and in the first postoperative control (4-6 weeks), with change from baseline in heart rate-adjusted augmentation index (AIx@75) as main outcome. Likewise, inflammatory circulating biomarkers were also measured in the same time line. RESULTS We included 44 patients, 25 in the EVAR group and 19 in the OSR group. Subjects who underwent EVAR were older and presented larger aneurysm diameter at baseline. There was a significant decrease in AIx@75 in the EVAR group after treatment (-4.1 ± 8.1%, P = 0.018), for a moderate effect size (d = 0.508), whereas the decreasing trend in the OSR group (-2.5 ± 6.7%, P = 0.127) was not statistically significant. No significant changes in carotid-radial pulse wave velocity (PWVCR) and central blood pressures were observed. The inflammatory markers increased after surgical repair, with significant changes in homocysteine in both EVAR (5.2 ± 6.9 μmol/L, P = 0.002) and OSR (1.8 ± 2.1 μmol/L, P = 0.002) groups. CONCLUSIONS Our study suggests that both treatments confer better postoperative values of AS measured by AIx@75 and produces no changes in PWVCR, in the early term. Whether this situation is maintained during follow-up needs further investigation.
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Affiliation(s)
- Andrés Reyes Valdivia
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain.
| | - Martin Fabregate Fuente
- Endothelium and Cardiometabolic Medicine Unit, Department of Internal Medicine and Heath Research Institute (IRYCIS) Ramón y Cajal University Hospital, Madrid, Spain
| | - Africa Duque Santos
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain
| | - Marta Garnica Ureña
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain
| | - Asunción Romero Lozano
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain
| | - Julia Ocaña Guaita
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain
| | - Claudio Gandarias Zúñiga
- Department of Vascular and Endovascular Surgery, Ramón y Cajal University Hospital, Madrid, Spain
| | - Konstantinos Donas
- Department of Vascular Surgery, St Franziskus Hospital Münster, Clinic for Vascular and Endovascular Surgery, Münster University Hospital, Münster, Germany
| | - José Sabán Ruiz
- Endothelium and Cardiometabolic Medicine Unit, Department of Internal Medicine, Ramón y Cajal University Hospital, Madrid, Spain
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Homocysteine-Enhanced Proteolytic and Fibrinolytic Processes in Thin Intraluminal Thrombus and Adjacent Wall of Abdominal Aortic Aneurysm: Study In Vitro. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3205324. [PMID: 30643799 PMCID: PMC6311307 DOI: 10.1155/2018/3205324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/12/2018] [Accepted: 11/26/2018] [Indexed: 01/11/2023]
Abstract
Homocysteine (Hcy) may affect the pathogenesis of abdominal aortic aneurysms (AAAs) through enhancement of proteolysis and an impaired coagulation/fibrinolysis system. Intensified haemostatic capacity may promote local proteolytic degradation of the aortic wall. This study aimed to examine the effects of Hcy on haemostatic and proteolytic processes in samples of thick and thin fragments of the ILT and underlying walls. Subjects and Methods. Thirty-six patients who underwent AAA surgery were enrolled. Aneurysm tissue sections were incubated with DL-Hcy (100 and 500 μmol/L) in a series of experiments and analyzed for concentration/activity of proteolytic and haemostatic markers by enzyme-linked immunosorbent assay. Results. Incubation of wall underlying thin ILT segments (B) with DL-Hcy resulted in an increase of active MMP-2 levels compared to control tissue (9.54 ± 5.88 versus 7.44 ± 4.48, p=0.011). DL-Hcy also induced t-PA and plasminogen concentration increases in thin thrombus sections (B1) compared to control tissue (respectively: 1.39 ± 1.65 versus 0.84 ± 0.74, p=0.024; 11.64 ± 5.05 versus 10.34 ± 5.52, p=0.018). In contrast, wall adjacent to thick thrombus segments (A) showed decreases in MMP-2 and TF activities compared to control (respectively, 5.89 ± 3.39 versus 7.26 ± 5.49, p=0.046; 67.13 ± 72.59 versus 114.46 ± 106.29, p=0.007). In thick ILT sections (A1), DL-Hcy decreased MMP-2 activity and t-PA and plasminogen concentrations compared to control tissue (respectively, 2.53 ± 2.02 versus 3.28 ± 2.65, p=0.006; 0.67 ± 0.57 versus 0.96 ± 0.91, p=0.021; 9.25 ± 4.59 versus 12.63 ± 9.56, p=0.017). In addition, analysis revealed positive correlations at all sites between activities/concentrations of MMP-2, TF, and PAI-1 measured in control tissues and after incubation with DL-Hcy. Conclusions. These data indicate the potential for excess Hcy to enhance damage of arterial wall in thinner AAA segments as a result of the increased activity of MMP-2 and fibrinolytic factors.
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Identification of Potential Plasma Biomarkers for Abdominal Aortic Aneurysm Using Tandem Mass Tag Quantitative Proteomics. Proteomes 2018; 6:proteomes6040043. [PMID: 30340394 PMCID: PMC6313917 DOI: 10.3390/proteomes6040043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 12/27/2022] Open
Abstract
Plasma biomarkers that identify abdominal aortic aneurysm (AAA) rupture risk would greatly assist in stratifying patients with small aneurysms. Identification of such biomarkers has hitherto been unsuccessful over a range of studies using different methods. The present study used an alternative proteomic approach to find new, potential plasma AAA biomarker candidates. Pre-fractionated plasma samples from twelve patients with AAA and eight matched controls without aneurysm were analyzed by mass spectrometry applying a tandem mass tag (TMT) technique. Eight proteins were differentially regulated in patients compared to controls, including decreased levels of the enzyme bleomycin hydrolase. The down-regulation of this enzyme was confirmed in an extended validation study using an enzyme-linked immunosorbent assay (ELISA). The TMT-based proteomic approach thus identified novel potential plasma biomarkers for AAA.
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Chrysant SG, Chrysant GS. The current status of homocysteine as a risk factor for cardiovascular disease: a mini review. Expert Rev Cardiovasc Ther 2018; 16:559-565. [DOI: 10.1080/14779072.2018.1497974] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Steven G. Chrysant
- Department of Cardiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - George S Chrysant
- Department of Cardiology, INTEGRIS Baptist Medical Center, Oklahoma City, OK, USA
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12
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The Society for Vascular Surgery practice guidelines on the care of patients with an abdominal aortic aneurysm. J Vasc Surg 2018; 67:2-77.e2. [DOI: 10.1016/j.jvs.2017.10.044] [Citation(s) in RCA: 1150] [Impact Index Per Article: 191.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Kumar A, Palfrey HA, Pathak R, Kadowitz PJ, Gettys TW, Murthy SN. The metabolism and significance of homocysteine in nutrition and health. Nutr Metab (Lond) 2017; 14:78. [PMID: 29299040 PMCID: PMC5741875 DOI: 10.1186/s12986-017-0233-z] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 12/07/2017] [Indexed: 12/31/2022] Open
Abstract
An association between arteriosclerosis and homocysteine (Hcy) was first demonstrated in 1969. Hcy is a sulfur containing amino acid derived from the essential amino acid methionine (Met). Hyperhomocysteinemia (HHcy) was subsequently shown in several age-related pathologies such as osteoporosis, Alzheimer's disease, Parkinson's disease, stroke, and cardiovascular disease (CVD). Also, Hcy is associated with (but not limited to) cancer, aortic aneurysm, hypothyroidism and end renal stage disease to mention some. The circulating levels of Hcy can be increased by defects in enzymes of the metabolism of Met, deficiencies of vitamins B6, B12 and folate or by feeding Met enriched diets. Additionally, some of the pharmaceuticals currently in clinical practice such as lipid lowering, and anti-Parkinsonian drugs are known to elevate Hcy levels. Studies on supplementation with folate, vitamins B6 and B12 have shown reduction in Hcy levels but concomitant reduction in certain associated pathologies have not been definitive. The enormous importance of Hcy in health and disease is illustrated by its prevalence in the medical literature (e.g. > 22,000 publications). Although there are compelling data in favor of Hcy as a modifiable risk factor, the debate regarding the significance of Hcy mediated health effects is still ongoing. Despite associations between increased levels of Hcy with several pathologies being well documented, whether it is a causative factor, or an effect remains inconclusive. The present review though not exhaustive, is focused on several important aspects of Hcy metabolism and their relevance to health.
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Affiliation(s)
- Avinash Kumar
- Environmental Toxicology Department, Southern University and A&M College, Baton Rouge, LA 70813 USA
| | - Henry A. Palfrey
- Environmental Toxicology Department, Southern University and A&M College, Baton Rouge, LA 70813 USA
| | - Rashmi Pathak
- Environmental Toxicology Department, Southern University and A&M College, Baton Rouge, LA 70813 USA
| | - Philip J. Kadowitz
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA USA
| | - Thomas W. Gettys
- Laboratory of Nutrient Sensing and Adipocyte Signaling, Pennington Biomedical Research Center, Baton Rouge, LA USA
| | - Subramanyam N. Murthy
- Environmental Toxicology Department, Southern University and A&M College, Baton Rouge, LA 70813 USA
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14
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Chan CYT, Cheng SWK. Elevated homocysteine in human abdominal aortic aneurysmal tissues. Vasc Med 2017; 22:370-377. [DOI: 10.1177/1358863x17718260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An abnormally high level of homocysteine (Hcy) has been consistently observed in the blood of abdominal aortic aneurysm (AAA) patients. However, the expression of Hcy in human AAA tissues has not been investigated. In this study, the expression of Hcy in aneurysmal tissues from AAA patients ( n=30) was compared with non-aneurysmal tissues from organ donors ( n=31) by dot blotting and immunohistochemistry. A significantly higher expression of Hcy was observed in AAA than control tissues ( p<0.001). Furthermore, the associations of methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism, detected by polymerase chain reaction-restriction fragment length polymorphism, with both AAA and tissue Hcy expression were evaluated. Our results showed MTHFR C677T polymorphism was not significantly associated with AAA or tissue Hcy expression. Lastly, the expression of Hcy in vascular smooth muscle cells (VSMCs), which were isolated from human aortic tissues by explant culture, and their release to cultured media was investigated by dot blotting. The AAA VSMCs expressed and released a significantly higher level of Hcy than the control VSMCs ( p<0.001). In summary, our novel findings showed Hcy expression was abnormally elevated in human AAA tissues, which may not be dependent on MTHFR C677T polymorphism.
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Affiliation(s)
- Crystal Yin Tung Chan
- Division of Vascular Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Pokfulam, Hong Kong
| | - Stephen Wing Keung Cheng
- Division of Vascular Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Pokfulam, Hong Kong
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Liu J, Jia X, Li H, Jia S, Zhang M, Xu Y, Du X, Zhang N, Lu W, Guo W. Association between MTHFR C677T polymorphism and abdominal aortic aneurysm risk: A comprehensive meta-analysis with 10,123 participants involved. Medicine (Baltimore) 2016; 95:e4793. [PMID: 27603386 PMCID: PMC5023909 DOI: 10.1097/md.0000000000004793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a life-threatening condition. A number of studies reported the association between methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and AAA risk, but substantial controversial findings were observed and the strength of the association remains unclear. OBJECTIVE The aim of this study was to investigate the aforementioned association in the overall population and different subgroups. METHODS PUBMED and EMBASE databases were searched until March 2016 to identify eligible studies, restricted to humans and articles published in English. Summary odds ratios (ORs) and 95% confidence intervals (CIs) were used to evaluate the susceptibility to AAA. Subgroup meta-analyses were conducted on features of the population, such as ethnicity, sex of the participants, and study design (source of control). RESULTS Twelve case-control studies on MTHFR C677T polymorphism and AAA risk, including 3555 cases and 6568 case-free controls were identified. The results revealed no significant association between the MTHFR C677T polymorphism and AAA risk in the overall population and within Caucasian or Asian subpopulations in all 5 genetic models. Further subgroup meta-analysis indicated that significantly increased risks were observed among cases with a mean age <70 years (OR = 1.73, 95% CI = 1.10-2.12, P = 0.02), cases with prevalence of smoking <60% (OR = 1.39, 95% CI = 1.02-1.90, P = 0.04), and cases with aneurysm diameter ≥55 mm (OR = 1.55, 95% CI = 1.07-2.24, P = 0.02) in the dominant genetic model. No publication bias was detected in the present study. CONCLUSION In conclusion, our comprehensive meta-analysis suggests that the MTHFR C677T polymorphism may play an important role in AAA susceptibility, especially in younger, non-smoking, larger AAA-diameter subgroups of patients.
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Affiliation(s)
- Jie Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xin Jia
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Haifeng Li
- Department of Vascular and Endovascular Surgery, Shanxian Dongda Hospital, Heze, Shandong
| | - Senhao Jia
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Minhong Zhang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Yongle Xu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xin Du
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Nianrong Zhang
- Department of Nephrology, Chinese-Japan Friendship Hospital, Beijing, China
| | - Weihang Lu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
- Correspondence: Wei Guo, Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, 28 Fuxing Rd, Haidian District, Beijing 100853, China (e-mail: )
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Plasma ferritin concentrations are not associated with abdominal aortic aneurysm diagnosis, size or growth. Atherosclerosis 2016; 251:19-24. [DOI: 10.1016/j.atherosclerosis.2016.05.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/04/2016] [Accepted: 05/11/2016] [Indexed: 01/26/2023]
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Hyperhomocysteinaemia is an independent risk factor of abdominal aortic aneurysm in a Chinese Han population. Sci Rep 2016; 6:17966. [PMID: 26865327 PMCID: PMC4750057 DOI: 10.1038/srep17966] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 11/09/2015] [Indexed: 12/27/2022] Open
Abstract
The associations between hyperhomocysteinaemia (HHcy), methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism, and abdominal aortic aneurysm (AAA) remain controversial, with only few studies focused on these associations within the Chinese population. We performed subgroup and interaction analyses in a Chinese Han population to investigate these associations. In all, 155 AAA patients and 310 control subjects were evaluated for serum total homocysteine levels and MTHFR C677T polymorphisms. Multiple logistic regression models were used to evaluate the aforementioned associations. Interaction and stratified analyses were conducted according to age, sex, smoking status, drinking status, and chronic disease histories. The multiple logistic analyses showed a significant association between HHcy and AAA but no significant association between MTHFR C677T polymorphism and AAA. The interaction analysis showed that age and peripheral arterial disease played an interactive role in the association between HHcy and AAA, while drinking status played an interactive role in the association between MTHFR C677T polymorphism and AAA. In conclusion, HHcy is an independent risk factor of AAA in a Chinese Han population, especially in the elderly and peripheral arterial disease subgroups. Longitudinal studies and clinical trials aimed to reduce homocysteine levels are warranted to assess the causal nature of these relationships
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Al- Gareeb A, Abd Al- Amieer WS, M. Alkuraishy H, J. Al- Mayahi T. Effect of body weight on serum homocysteine level in patients with polycystic ovarian syndrome: A case control study. Int J Reprod Biomed 2016. [DOI: 10.29252/ijrm.14.2.81] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Bradley DT, Badger SA, McFarland M, Hughes AE. Abdominal Aortic Aneurysm Genetic Associations: Mostly False? A Systematic Review and Meta-analysis. Eur J Vasc Endovasc Surg 2015; 51:64-75. [PMID: 26460285 DOI: 10.1016/j.ejvs.2015.09.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/07/2015] [Indexed: 01/27/2023]
Abstract
OBJECTIVE/BACKGROUND Many associations between abdominal aortic aneurysm (AAA) and genetic polymorphisms have been reported. It is unclear which are genuine and which may be caused by type 1 errors, biases, and flexible study design. The objectives of the study were to identify associations supported by current evidence and to investigate the effect of study design on reporting associations. METHODS Data sources were MEDLINE, Embase, and Web of Science. Reports were dual-reviewed for relevance and inclusion against predefined criteria (studies of genetic polymorphisms and AAA risk). Study characteristics and data were extracted using an agreed tool and reports assessed for quality. Heterogeneity was assessed using I(2) and fixed- and random-effects meta-analyses were conducted for variants that were reported at least twice, if any had reported an association. Strength of evidence was assessed using a standard guideline. RESULTS Searches identified 467 unique articles, of which 97 were included. Of 97 studies, 63 reported at least one association. Of 92 studies that conducted multiple tests, only 27% corrected their analyses. In total, 263 genes were investigated, and associations were reported in polymorphisms in 87 genes. Associations in CDKN2BAS, SORT1, LRP1, IL6R, MMP3, AGTR1, ACE, and APOA1 were supported by meta-analyses. CONCLUSION Uncorrected multiple testing and flexible study design (particularly testing many inheritance models and subgroups, and failure to check for Hardy-Weinberg equilibrium) contributed to apparently false associations being reported. Heterogeneity, possibly due to the case mix, geographical, temporal, and environmental variation between different studies, was evident. Polymorphisms in nine genes had strong or moderate support on the basis of the literature at this time. Suggestions are made for improving AAA genetics study design and conduct.
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Affiliation(s)
- D T Bradley
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Institute of Clinical Sciences, Block B, Royal Victoria Hospital, Belfast BT12 6BA, UK.
| | - S A Badger
- Mater Misericordiae University Hospital, Eccles Street, Dublin, Ireland
| | - M McFarland
- Department of Pathology, Institute of Pathology Building, Royal Victoria Hospital, Belfast Health and Social Care Trust, Grosvenor Road, Belfast BT12 6BL, UK
| | - A E Hughes
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Institute of Clinical Sciences, Block B, Royal Victoria Hospital, Belfast BT12 6BA, UK
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Saratzis A, Bown MJ, Wild B, Nightingale P, Smith J, Johnson C, Melas N, Kitas GD. Association between seven single nucleotide polymorphisms involved in inflammation and proteolysis and abdominal aortic aneurysm. J Vasc Surg 2015; 61:1120-8.e1. [DOI: 10.1016/j.jvs.2013.11.099] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/20/2013] [Accepted: 11/24/2013] [Indexed: 11/16/2022]
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Dyer LA. Hypercysteinemia hypes up the inflammasome. J Mol Cell Cardiol 2015; 82:33-5. [PMID: 25758430 DOI: 10.1016/j.yjmcc.2015.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Laura A Dyer
- Department of Natural Sciences, Middle Georgia State College, Macon, GA 31206, USA.
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Novel biomarkers of abdominal aortic aneurysm disease: identifying gaps and dispelling misperceptions. BIOMED RESEARCH INTERNATIONAL 2014; 2014:925840. [PMID: 24967416 PMCID: PMC4055358 DOI: 10.1155/2014/925840] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/29/2014] [Accepted: 05/04/2014] [Indexed: 11/17/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a prevalent and potentially life-threatening disease. Early detection by screening programs and subsequent surveillance has been shown to be effective at reducing the risk of mortality due to aneurysm rupture. The aim of this review is to summarize the developments in the literature concerning the latest biomarkers (from 2008 to date) and their potential screening and therapeutic values. Our search included human studies in English and found numerous novel biomarkers under research, which were categorized in 6 groups. Most of these studies are either experimental or hampered by their low numbers of patients. We concluded that currently no specific laboratory markers allow screeing for the disease and monitoring its progression or the results of treatment. Further studies and studies in larger patient groups are required in order to validate biomarkers as cost-effective tools in the AAA disease.
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Zhang S, Bai YY, Luo LM, Xiao WK, Wu HM, Ye P. Association between serum homocysteine and arterial stiffness in elderly: a community-based study. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2014; 11:32-8. [PMID: 24748879 PMCID: PMC3981981 DOI: 10.3969/j.issn.1671-5411.2014.01.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 01/16/2014] [Accepted: 01/22/2014] [Indexed: 02/01/2023]
Abstract
Background Arterial stiffness and homocysteine are both powerful predictors of cardiovascular disease, especially in older populations. Previous studies have investigated the association of homocysteine with arterial stiffness in human subjects, while the relationship between homocysteine and arterial stiffness in the elderly is still indefinite. The current study examined the association of homocysteine with arterial stiffness in Chinese community-based elderly persons. Methods We related serum levels of homocysteine to two measures of arterial stiffness (carotid-femoral pulse wave velocity (PWV) and carotid-radial PWV) in 780 participants (46.3% men, mean age 71.9 years (ranging 65–96 years old)) from two communities of Beijing, China. Arterial stiffness was measured within two days of the time of biomarker measurement. Results In multiple-adjusted models, homocysteine levels were strongly associated with the carotid-femoral PWV (standardized β = 0.13, P < 0.001), even after adjustment for classical risk factors of cardiovascular disease. The association is also stronger when the carotid-femoral PWV is elevated above normal, whereas no significant association with homocysteine was observed for carotid-radial PWV. Conclusions In Chinese elderly persons, serum homocysteine levels are associated with alterations of aortic stiffness.
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Affiliation(s)
- Song Zhang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China ; School of Medicine, Nankai University, NO.94, Weijin Road, Tianjin 300071, China
| | - Yong-Yi Bai
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China
| | - Lei-Ming Luo
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China
| | - Wen-Kai Xiao
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China
| | - Hong-Mei Wu
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China
| | - Ping Ye
- Department of Geriatric Cardiology, Chinese PLA General Hospital, No.28, Fuxing Road, Beijing 100853, China
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Homocysteine level and risk of abdominal aortic aneurysm: a meta-analysis. PLoS One 2014; 9:e85831. [PMID: 24465733 PMCID: PMC3897527 DOI: 10.1371/journal.pone.0085831] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 11/27/2013] [Indexed: 11/19/2022] Open
Abstract
Objectives Previous studies have reported inconsistent findings regarding the association between elevated plasma homocysteine (Hcy) levels and abdominal aortic aneurysm (AAA). We investigated this association between Hcy levels in patients with AAA and unaffected controls by conducting a meta-analysis and systematic review. Methods We conducted a systematic literature search (up to August 2013) of the PubMed database and Embase. We selected observational studies that evaluated Hcy levels in subjects with AAA compared to unaffected controls. Criteria for inclusion were the assessment of baseline Hcy and risk of AAA as an outcome. The results were presented as odd ratio (OR) and corresponding 95% confidence intervals (CI) comparing AAA patients to the control subjects. Results 7 studies with 6,445 participants were identified and analyzed. Overall, elevated plasma Hcy was associated with an increased risk of AAA (3.29; 95% CI 1.66–6.51). The pooled adjusted OR from a random effect model of only men participants in the AAA compared with the control group was 2.36 (95% CI 0.63–8.82). Conclusion This meta-analysis and systematic review suggested that Hcy significantly increased the risk of AAA.
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Wei Y, Xiong J, Zuo S, Chen F, Chen D, Wu T, Guo W, Hu Y. Association of polymorphisms on chromosome 9p21.3 region with increased susceptibility of abdominal aortic aneurysm in a Chinese Han population. J Vasc Surg 2013; 59:879-85. [PMID: 24365123 DOI: 10.1016/j.jvs.2013.10.095] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 10/21/2013] [Accepted: 10/23/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Several studies have reported that polymorphisms on chromosome 9p21.3, near the CDKN2A/2B gene, are strongly associated with increased susceptibility to abdominal aortic aneurysm (AAA). However, no convincing data has been reported on a relationship between AAA and these variants in the Chinese Han population. The aim of this study was to evaluate the role of rs10757278 and rs1333049 in determining genetic susceptibility to AAA. METHODS A total of 155 AAA patients and 310 controls, comparable in age and gender, were enrolled in this study. DNA samples were genotyped for rs10757278 and rs1333049 using the MassArray system. The association between these two single nucleotide polymorphisms and AAAs was tested using multivariate logistic regression. Stratified analysis was also performed by clinical and laboratory features. RESULTS Single nucleotide polymorphisms rs10757278 and rs1333049 were significantly associated with increased risk of AAA. The frequencies of rs10757278-G and rs1333049-C in AAA patients were significantly higher than in control subjects (odds ratio [OR], 1.53; 95% confidence interval [CI], 1.11-2.11; P = .01, and OR, 1.48; 95% CI, 1.07-2.05; P = .02). Multiple logistic regression analysis indicated that, after adjusting for smoking habits, drinking habits, and histories of other chronic diseases, homozygosity of the risk allele for rs10758278-G and rs1333049-C also increased the likelihood of AAA (OR, 2.31; 95% CI, 1.22-4.36, and OR, 2.14; 95% CI, 1.13-4.05). The frequency of the GC haplotype was significantly higher in AAA patients than in control subjects (OR, 1.44; P = .038). Stratification analysis of clinical and laboratory features revealed no association between polymorphisms and aortic diameters in AAA patients. There was a significantly high frequency of the rs10757278 GG genotype in AAA patients with high serum total homocysteine compared with those control subjects with high serum total homocysteine (OR, 2.71; 95% CI, 1.12-6.58; P = .03) indicating that the genotype GG of rs10757278 might interact with the homocysteine biological pathway to stimulate the presence of AAA. CONCLUSIONS Present data demonstrate that rs10757278 and rs1333049 on chromosome 9p21.3 are significantly associated with increased risk of AAA in the Chinese population and emphasize the need to further study the role of these markers in AAA.
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Affiliation(s)
- Yingqi Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jiang Xiong
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Shangwei Zuo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Feng Chen
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Dafang Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Tao Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China.
| | - Yonghua Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China.
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