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Satny M, Todorovova V, Altschmiedova T, Hubacek JA, Dlouha L, Lanska V, Soska V, Kyselak O, Freiberger T, Bobak M, Vrablik M. Genetic risk score in patients with the APOE2/E2 genotype as a predictor of familial dysbetalipoproteinemia. J Clin Lipidol 2024; 18:e230-e237. [PMID: 38044203 DOI: 10.1016/j.jacl.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 11/09/2023] [Accepted: 11/17/2023] [Indexed: 12/05/2023]
Abstract
BACKGROUND Familial dysbetalipoproteinemia (FD) is an autosomal recessive (rarely dominant) inherited disorder that is almost exclusively associated with the apolipoprotein E gene (APOE) variability. Nonetheless, only a small proportion of APOE2/E2 subjects develop the phenotype for mixed dyslipidemia; the context of other trigger metabolic or genetic factors remains unknown. METHODS One hundred and one patients with FD and eighty controls (all APOE2/E2 homozygotes; rs429358) were screened for 18 single-nucleotide polymorphisms (SNPs) within the genes involved in triglyceride metabolism. RESULTS Two SNPs were significantly associated with the FD phenotype (rs439401 within APOE; P < 0.0005 and rs964184 within ZPR1/APOA5/A4/C3/A1 gene cluster; P < 0.0001). Unweighted genetic risk scores - from these two SNPs (GRS2), and, also, additional 13 SNPs with P-value below 0.9 (GRS15) - were created as an additional tool to improve the risk estimation of FD development in subjects with the APOE2/E2 genotype. Both GRS2 and GRS15 were significantly (P < 0.0001) increased in patients and both GRSs discriminated almost identically between the groups (P = 0.86). Subjects with an unweighted GRS2 of three or more had an almost four-fold higher risk of FD development than other individuals (odds ratio (OR) 3.58, 95% confidence interva (CI): 1.78-7.18, P < 0.0005). CONCLUSIONS We identified several SNPs that are individual additive factors influencing FD development. The use of unweighted GRS2 is a simple and clinically relevant tool that further improves the prediction of FD in APOE2/E2 homozygotes with corresponding biochemical characteristics.
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Affiliation(s)
- Martin Satny
- 3rd Department of Internal Medicine, First Faculty of Medicine Charles University, General University Hospital, Prague, Czech Republic (Drs Satny, Todorovova, Altschmiedova, Hubacek and Vrablik).
| | - Veronika Todorovova
- 3rd Department of Internal Medicine, First Faculty of Medicine Charles University, General University Hospital, Prague, Czech Republic (Drs Satny, Todorovova, Altschmiedova, Hubacek and Vrablik)
| | - Tereza Altschmiedova
- 3rd Department of Internal Medicine, First Faculty of Medicine Charles University, General University Hospital, Prague, Czech Republic (Drs Satny, Todorovova, Altschmiedova, Hubacek and Vrablik)
| | - Jaroslav A Hubacek
- 3rd Department of Internal Medicine, First Faculty of Medicine Charles University, General University Hospital, Prague, Czech Republic (Drs Satny, Todorovova, Altschmiedova, Hubacek and Vrablik); Centre of Experimental Medicine, Institute of Clinical and Experimental Medicine, Prague, Czech Republic (Drs Hubacek and Lanska)
| | - Lucie Dlouha
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic (Dr Dlouha)
| | - Vera Lanska
- Centre of Experimental Medicine, Institute of Clinical and Experimental Medicine, Prague, Czech Republic (Drs Hubacek and Lanska)
| | - Vladimir Soska
- Clinical Biochemistry Department, St. Anne University Hospital, Brno, Czech Republic (Drs Soska and Kyselak); 2nd Internal Department, Faculty of Medicine Masaryk University and St. Anne University Hospital, Brno, Czech Republic (Drs Soska and Kyselak)
| | - Ondrej Kyselak
- Clinical Biochemistry Department, St. Anne University Hospital, Brno, Czech Republic (Drs Soska and Kyselak); 2nd Internal Department, Faculty of Medicine Masaryk University and St. Anne University Hospital, Brno, Czech Republic (Drs Soska and Kyselak)
| | - Tomas Freiberger
- Centre for Cardiovascular Surgery and Transplantation, Brno, and Medical Faculty, Masaryk University, Brno, Czech Republic (Dr Freiberger)
| | - Martin Bobak
- Institute of Epidemiology and Health Care, University College London, London WC1E 7HB, United Kingdom, and Medical Faculty, Masaryk University, Brno, Czech Republic (Dr Bobak)
| | - Michal Vrablik
- 3rd Department of Internal Medicine, First Faculty of Medicine Charles University, General University Hospital, Prague, Czech Republic (Drs Satny, Todorovova, Altschmiedova, Hubacek and Vrablik)
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Sienkiewicz-Szłapka E, Fiedorowicz E, Król-Grzymała A, Kordulewska N, Rozmus D, Cieślińska A, Grzybowski A. The Role of Genetic Polymorphisms in Diabetic Retinopathy: Narrative Review. Int J Mol Sci 2023; 24:15865. [PMID: 37958858 PMCID: PMC10650381 DOI: 10.3390/ijms242115865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Diabetic retinopathy (DR) is renowned as a leading cause of visual loss in working-age populations with its etiopathology influenced by the disturbance of biochemical metabolic pathways and genetic factors, including gene polymorphism. Metabolic pathways considered to have an impact on the development of the disease, as well as genes and polymorphisms that can affect the gene expression, modify the quantity and quality of the encoded product (protein), and significantly alter the metabolic pathway and its control, and thus cause changes in the functioning of metabolic pathways. In this article, the screening of chromosomes and the most important genes involved in the etiology of diabetic retinopathy is presented. The common databases with manuscripts published from January 2000 to June 2023 have been taken into consideration and chosen. This article indicates the role of specific genes in the development of diabetic retinopathy, as well as polymorphic changes within the indicated genes that may have an impact on exacerbating the symptoms of the disease. The collected data will allow for a broader look at the disease and help to select candidate genes that can become markers of the disease.
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Affiliation(s)
- Edyta Sienkiewicz-Szłapka
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Ewa Fiedorowicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Angelika Król-Grzymała
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Natalia Kordulewska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Dominika Rozmus
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, 10-719 Olsztyn, Poland; (E.S.-S.); (E.F.); (A.K.-G.); (N.K.); (D.R.)
| | - Andrzej Grzybowski
- Institute for Research in Ophthalmology, Foundation for Ophthalmology Development, Gorczyczewskiego 2/3, 61-553 Poznań, Poland;
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Hubacek JA, Dlouha L, Adamkova V, Dlouha D, Pacal L, Kankova K, Galuska D, Lanska V, Veleba J, Pelikanova T. Genetic risk score is associated with T2DM and diabetes complications risks. Gene X 2022; 849:146921. [PMID: 36174902 DOI: 10.1016/j.gene.2022.146921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/09/2022] [Accepted: 09/21/2022] [Indexed: 10/14/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a prototypical complex disease with polygenic architecture playing an important role in determining susceptibility to develop the disease (and its complications) in subjects exposed to modifiable lifestyle factors. A current challenge is to quantify the degree of the individual's genetic risk using genetic risk scores (GRS) capturing the results of genome-wide association studies while incorporating possible ethnicity- or population-specific differences. METHODS This study included three groups of T2DM (T2DM-I, N=1,032; T2DM-II, N=353; and T2DM-III, N=399) patients and 2,481 diabetes-free subjects. The status of the microvascular and macrovascular diabetes complications were known for the T2DM-I patients. Overall, 21 single nucleotide polymorphisms (SNPs) were analyzed, and selected subsets were used to determine the GRS (both weighted - wGRS and unweighted - uGRS) for T2DM risk predictions (6 SNPs) and for predicting the risks of complications (7 SNPs). RESULTS The strongest T2DM markers (P<0.0001) were within the genes for TCF7L2 (transcription factor 7-like 2), FTO (fat mass and obesity associated protein) and ARAP1 (ankyrin repeat and PH domain 1). The T2DM-I subjects with uGRS values greater (Odds Ratio, 95% Confidence Interval) than six had at least twice (2.00, 1.72-2.32) the risk of T2DM development (P<0.0001), and these results were confirmed in the independent groups (T2DM-II 1.82, 1.45-2.27; T2DM-III 2.63, 2.11-3.27). The wGRS (>0.6) further improved (P<0.000001) the risk estimations for all three T2DM groups. The uGRS was also a significant predictor of neuropathy (P<0.0001), nephropathy (P<0.005) and leg ischemia (P<0.0005). CONCLUSIONS If carefully selected and specified, GRS, both weighted and unweighted, could be significant predictors of T2DM development, as well as the diabetes complications development.
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Affiliation(s)
- Jaroslav A Hubacek
- Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; 3rd Department of Internal Medicine, 1(st) Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Lucie Dlouha
- Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Vera Adamkova
- Department of Preventive Cardiology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic; Czech Technical University of Prague, Faculty of Biomedical Engineering, Prague, Czech Republic
| | - Dana Dlouha
- Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Lukas Pacal
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Katerina Kankova
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - David Galuska
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Vera Lanska
- Statistical Unit, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Jiri Veleba
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Terezie Pelikanova
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
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Genetic polymorphisms of apolipoprotein E in nonarteritic anterior ischemic optic neuropathy. Graefes Arch Clin Exp Ophthalmol 2022; 260:2717-2726. [PMID: 35258716 DOI: 10.1007/s00417-022-05616-7] [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: 11/09/2021] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 11/04/2022] Open
Abstract
PURPOSE To elucidate the potential role of genetic polymorphisms of apolipoprotein E (APOE) in nonarteritic anterior ischemic optic neuropathy (NAION) and the association between APOE and NAION-induced ocular impairments. METHODS A total of 73 NAION patients and 73 sex- and age-matched healthy controls were recruited for the study. Genomic DNA was isolated from peripheral blood samples. The alleles and genotypes of APOE were explored. The interaction between APOE and medical comorbidities was assessed by the multifactor dimensionality reduction (MDR) method. Among 81 affected eyes of NAION patients, an additional association study of APOE isoforms with visual impairments was carried out. RESULTS The allele and genotype frequencies for APOE showed significant differences when comparing NAION cases and controls. Multivariate analysis adjusted for age, sex, hypertension, dyslipidemia, diabetes mellitus, cardiovascular disease, and cerebrovascular disease revealed that the ε3/ε4 genotype (OR = 3.86, 95% CI = 1.13-13.25, p = 0.032) and ε4 allele (OR = 3.55, 95% CI = 1.05-11.99, p = 0.041) were strong independent risk factors for NAION. Compared to eyes with the ε3/ε3 + ε2/ε4 genotype, individuals with the ε4/ε4 + ε3/ε4 genotype had worse visual field defects (VFDs) and thinner macular ganglion cell complex (mGCC) thicknesses with larger focal loss of volume (FLV) and general loss of volume (GLV). Compared to ε4 noncarriers, ε4 carriers also tended to have more serious VFD and mGCC loss. CONCLUSIONS APOE polymorphisms conferred a significant risk of NAION and were significantly related to ocular impairments caused by NAION.
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