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Hajdú N, Rácz R, Tordai DZ, Békeffy M, Vági OE, Istenes I, Körei AE, Kempler P, Putz Z. Genetic Variants Influence the Development of Diabetic Neuropathy. Int J Mol Sci 2024; 25:6429. [PMID: 38928135 PMCID: PMC11203776 DOI: 10.3390/ijms25126429] [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: 04/02/2024] [Revised: 05/22/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
The exact mechanism by which diabetic neuropathy develops is still not fully known, despite our advances in medical knowledge. Progressing neuropathy may occur with a persistently favorable metabolic status in some patients with diabetes mellitus, while, in others, though seldom, a persistently unfavorable metabolic status is not associated with significant neuropathy. This might be significantly due to genetic differences. While recent years have brought compelling progress in the understanding of the pathogenetic background-in particular, accelerated progress is being made in understanding molecular biological mechanisms-some aspects are still not fully understood. A comparatively small amount of information is accessible on this matter; therefore, by summarizing the available data, in this review, we aim to provide a clearer picture of the current state of knowledge, identify gaps in the previous studies, and possibly suggest directions for future studies. This could help in developing more personalized approaches to the prevention and treatment of diabetic neuropathy, while also taking into account individual genetic profiles.
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Tordai DZ, Hajdú N, Rácz R, Istenes I, Békeffy M, Vági OE, Kempler M, Körei AE, Tóbiás B, Illés A, Pikó H, Kósa JP, Árvai K, Papp M, Lakatos PA, Kempler P, Putz Z. Genetic Factors Associated with the Development of Neuropathy in Type 2 Diabetes. Int J Mol Sci 2024; 25:1815. [PMID: 38339094 PMCID: PMC10855482 DOI: 10.3390/ijms25031815] [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: 12/19/2023] [Revised: 01/25/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Neuropathy is a serious and frequent complication of type 2 diabetes (T2DM). This study was carried out to search for genetic factors associated with the development of diabetic neuropathy by whole exome sequencing. For this study, 24 patients with long-term type 2 diabetes with neuropathy and 24 without underwent detailed neurological assessment and whole exome sequencing. Cardiovascular autonomic function was evaluated by cardiovascular reflex tests. Heart rate variability was measured by the triangle index. Sensory nerve function was estimated by Neurometer and Medoc devices. Neuropathic symptoms were characterized by the neuropathy total symptom score (NTSS). Whole exome sequencing (WES) was performed on a Thermo Ion GeneStudio S5 system determining the coding sequences of approximately 32,000 genes comprising 50 million base pairs. Variants were detected by Ion Reporter software and annotated using ANNOVAR, integrating database information from dbSNP, ClinVar, gnomAD, and OMIM. Integrative genomics viewer (IGV) was used for visualization of the mapped reads. We have identified genetic variants that were significantly associated with increased (22-49-fold) risk of neuropathy (rs2032930 and rs2032931 of recQ-mediated genome instability protein 2 (RMI2) gene), rs604349 of myosin binding protein H like (MYBPHL) gene and with reduced (0.07-0.08-fold) risk (rs917778 of multivesicular body subunit 12B (MVB12B) and rs2234753 of retinoic acid X receptor alpha (RXRA) genes). The rs2032930 showed a significant correlation with current perception thresholds measured at 5 Hz and 250 Hz for n. medianus (p = 0.042 and p = 0.003, respectively) and at 5 Hz for n. peroneus (p = 0.037), as well as the deep breath test (p = 0.022) and the NTSS (p = 0.023). The rs2032931 was associated with current perception thresholds (p = 0.003 and p = 0.037, respectively), deep breath test (p = 0.022), and NTSS (p = 0.023). The rs604349 correlated with values measured at 2000 (p = 0.049), 250 (p = 0.018), and 5 Hz (p = 0.005) for n. medianus, as well as warm perception threshold measured by Medoc device (p = 0.042). The rs2234753 showed correlations with a current perception threshold measured at 2000 Hz for n. medianus (p = 0.020), deep breath test (p = 0.040), and NTSS (p = 0.003). There was a significant relationship between rs91778 and cold perception threshold (p = 0.013). In our study, genetic variants have been identified that may have an impact on the risk of neuropathy developing in type 2 diabetic patients. These results could open up new opportunities for early preventive measures and might provide targets for new drug developments in the future.
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Affiliation(s)
- Dóra Zsuszanna Tordai
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Noémi Hajdú
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Ramóna Rácz
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Ildikó Istenes
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Magdolna Békeffy
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Orsolya Erzsébet Vági
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Miklós Kempler
- Department of Internal Medicine and Hematology, Semmelweis University, 1085 Budapest, Hungary;
| | - Anna Erzsébet Körei
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Bálint Tóbiás
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Vascular Diagnostics Ltd., 1026 Budapest, Hungary
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
| | - Anett Illés
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
| | - Henriett Pikó
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
| | - János Pál Kósa
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Vascular Diagnostics Ltd., 1026 Budapest, Hungary
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
| | - Kristóf Árvai
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Vascular Diagnostics Ltd., 1026 Budapest, Hungary
| | - Márton Papp
- Centre for Bioinformatics, University of Veterinary Medicine, 1078 Budapest, Hungary;
| | - Péter András Lakatos
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- PentaCore Laboratory, 1134 Budapest, Hungary;
- Vascular Diagnostics Ltd., 1026 Budapest, Hungary
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
| | - Péter Kempler
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
| | - Zsuzsanna Putz
- Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary; (N.H.); (I.I.); (M.B.); (O.E.V.); or (A.E.K.); (B.T.); (A.I.); (H.P.); (J.P.K.); (P.A.L.); (P.K.); or (Z.P.)
- Eötvös Lóránd Scientific Network ENDOMOLPAT, Semmelweis University, 1085 Budapest, Hungary
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Vrbanović E, Zlendić M, Trošelj KG, Tomljanović M, Vuković Đerfi K, Alajbeg IZ. Association of Oxidative-Stress-Related Gene Polymorphisms with Pain-Related Temporomandibular Disorders and Oral Behavioural Habits. Antioxidants (Basel) 2023; 12:1195. [PMID: 37371925 DOI: 10.3390/antiox12061195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
The frequency of selected polymorphisms, one in each gene coding for proteins with antioxidative properties (CAT(rs1001179), SOD2(rs4880), GPX1(rs1050450), and NQO1(rs689452)), was compared between patients suffering from pain-related temporomandibular disorders (TMDp; n = 85) and control subjects (CTR; n = 85). The same was evaluated when participants were divided with respect to oral behavioural habits frequency into high-frequency parafunction (HFP; n = 98) and low-frequency parafunction (LFP; n = 72) groups. Another aim was to investigate whether polymorphisms in these genes can be associated with participants' psychological and psychosomatic characteristics. Polymorphisms were genotyped using the genomic DNA extracted from buccal mucosa swabs and real-time TaqMan genotyping assays. No differences in genotype distribution between TMDp patients and control subjects were found. Still, TMDp patients who were homozygous for minor allele A, related to the GPX1 polymorphism rs1050450, reported significantly more waking-state oral behaviours than GA + GG genotype carriers (score: 30 vs. 23, p = 0.019). The frequency of genotype AA for rs1050450 polymorphism was higher in HFP than in LFP participants (14.3% vs. 4.2%, p = 0.030). The most important predictors of waking-state oral behaviours were depression, anxiety, AA genotype (rs1050450), and female sex. The explored gene polymorphisms were not found to be significant risk factors for either TMDp or sleep-related oral behaviours. The association of waking-state oral behaviours with selected gene polymorphisms additionally supports previous assumptions that daytime bruxism is more closely linked to various stress manifestations, which might also be reflected through the variability related to the cellular antioxidative activity.
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Affiliation(s)
- Ema Vrbanović
- Department of Removable Prosthodontics, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia
| | - Marko Zlendić
- Department of Removable Prosthodontics, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia
| | - Koraljka Gall Trošelj
- Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Marko Tomljanović
- Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Kristina Vuković Đerfi
- Laboratory for Personalized Medicine, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Iva Z Alajbeg
- Department of Removable Prosthodontics, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia
- Department of Dentistry, Clinical Hospital Center Zagreb, 10000 Zagreb, Croatia
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Papasavva M, Vikelis M, Siokas V, Katsarou MS, Dermitzakis EV, Raptis A, Kalliantasi A, Dardiotis E, Drakoulis N. Variability in oxidative stress-related genes ( SOD2, CAT, GPX1, GSTP1, NOS3, NFE2L2, and UCP2) and susceptibility to migraine clinical phenotypes and features. Front Neurol 2023; 13:1054333. [PMID: 36698892 PMCID: PMC9868718 DOI: 10.3389/fneur.2022.1054333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/13/2022] [Indexed: 01/11/2023] Open
Abstract
Introduction Migraine is a complex disorder with genetic and environmental inputs. Cumulative evidence implicates oxidative stress (OS) in migraine pathophysiology while genetic variability may influence an individuals' oxidative/antioxidant capacity. Aim of the current study was to investigate the impact of eight common OS-related genetic variants [rs4880 (SOD2), rs1001179 (CAT), rs1050450 (GPX1), rs1695 (GSTP1), rs1138272 (GSTP1), rs1799983 (NOS3), rs6721961 (NFE2L2), rs660339 (UCP2)] in migraine susceptibility and clinical features in a South-eastern European Caucasian population. Methods Genomic DNA samples from 221 unrelated migraineurs and 265 headache-free controls were genotyped for the selected genetic variants using real-time PCR (melting curve analysis). Results Although allelic and genotypic frequency distribution analysis did not support an association between migraine susceptibility and the examined variants in the overall population, subgroup analysis indicated significant correlation between NOS3 rs1799983 and migraine susceptibility in males. Furthermore, significant associations of CAT rs1001179 and GPX1 rs1050450 with disease age-at-onset and migraine attack duration, respectively, were revealed. Lastly, variability in the CAT, GSTP1 and UCP2 genes were associated with sleep/weather changes, alcohol consumption and physical exercise, respectively, as migraine triggers. Discussion Hence, the current findings possibly indicate an association of OS-related genetic variants with migraine susceptibility and clinical features, further supporting the involvement of OS and genetic susceptibility in migraine.
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Affiliation(s)
- Maria Papasavva
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece,*Correspondence: Maria Papasavva ✉
| | | | - Vasileios Siokas
- Laboratory of Neurogenetics, Department of Neurology, University Hospital of Larissa, Larissa, Greece,Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Martha-Spyridoula Katsarou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Athanasios Raptis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Aikaterini Kalliantasi
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Efthimios Dardiotis
- Laboratory of Neurogenetics, Department of Neurology, University Hospital of Larissa, Larissa, Greece,Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Nikolaos Drakoulis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece,Nikolaos Drakoulis ✉
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Zazueta C, Jimenez-Uribe AP, Pedraza-Chaverri J, Buelna-Chontal M. Genetic Variations on Redox Control in Cardiometabolic Diseases: The Role of Nrf2. Antioxidants (Basel) 2022; 11:antiox11030507. [PMID: 35326157 PMCID: PMC8944632 DOI: 10.3390/antiox11030507] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 02/07/2023] Open
Abstract
The transcription factor Nrf2 is a master regulator of multiple cytoprotective genes that maintain redox homeostasis and exert anti-inflammatory functions. The Nrf2-Keap1 signaling pathway is a paramount target of many cardioprotective strategies, because redox homeostasis is essential in cardiovascular health. Nrf2 gene variations, including single nucleotide polymorphisms (SNPs), are correlated with cardiometabolic diseases and drug responses. SNPs of Nrf2, KEAP1, and other related genes can impair the transcriptional activation or the activity of the resulting protein, exerting differential susceptibility to cardiometabolic disease progression and prevalence. Further understanding of the implications of Nrf2 polymorphisms on basic cellular processes involved in cardiometabolic diseases progression and prevalence will be helpful to establish more accurate protective strategies. This review provides insight into the association between the polymorphisms of Nrf2-related genes with cardiometabolic diseases. We also briefly describe that SNPs of Nrf2-related genes are potential modifiers of the pharmacokinetics that contribute to the inter-individual variability.
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Affiliation(s)
- Cecilia Zazueta
- Departmento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología, I.Ch., Mexico City 14080, Mexico;
| | - Alexis Paulina Jimenez-Uribe
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.P.J.-U.); (J.P.-C.)
| | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (A.P.J.-U.); (J.P.-C.)
| | - Mabel Buelna-Chontal
- Departmento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología, I.Ch., Mexico City 14080, Mexico;
- Correspondence:
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Ściskalska M, Milnerowicz H. Association of genetic variants in the GPX1 and GPX4 genes with the activities of glutathione-dependent enzymes, their interaction with smoking and the risk of acute pancreatitis. Biomed Pharmacother 2022; 146:112591. [PMID: 35062064 DOI: 10.1016/j.biopha.2021.112591] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/02/2022] Open
Abstract
Genetic factors and tobacco smoke exposure can be associated with an increased risk of acute pancreatitis (AP). The pathogenesis of AP is associated with intensive oxidative stress. Glutathione peroxidase (GPx) is one of many enzymes involved in the neutralization of free radicals. This study aimed to investigate the impact of SNP rs1050450 in the GPX1 gene and rs713041 in the GPX4 gene on the activity of total GPx in a group of AP patients and healthy subjects. It was found that AP can contribute to decreased GPx activity (in plasma and erythrocyte lysate) accompanied by an increased glutathione reductase (GR) activity and decreased glutathione (GSH) concentration in two groups, non-smokers and smokers. A decreased GPx activity in erythrocyte lysate of AP patients compared to healthy subjects was associated with the occurrence of the CC genotype for SNP rs1050450. It was noted an increased GPx activity and decreased GR activity in erythrocytes of non-smoking AP patients with the TT genotype compared to subjects with the CC and TC genotype for SNP rs713041. However, in the group of smoking AP patients with this genotype, GR activity was elevated compared to non-smokers, which was accompanied by increased GSH concentration. These results can indicate that smoking in the course of AP can change the involvement of antioxidants in dependence on the genotype for the examined SNPs. The CC genotype for SNP rs1050450 and the TT genotype for rs713041 increases the risk of AP recurrence, which may be associated with increased MDA concentration.
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Affiliation(s)
- Milena Ściskalska
- Department of Pharmaceutical Biochemistry, Division of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A St., Wroclaw 50-556, Poland.
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 St., Wrocław 50-556, Poland
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Ho KJ, Chen TH, Yang CC, Chuang YC, Chuang HY. Interaction of Smoking and Lead Exposure among Carriers of Genetic Variants Associated with a Higher Level of Oxidative Stress Indicators. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168325. [PMID: 34444074 PMCID: PMC8393757 DOI: 10.3390/ijerph18168325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/01/2021] [Accepted: 08/04/2021] [Indexed: 02/02/2023]
Abstract
Smoking and lead (Pb) exposure increased oxidative stress in human body, and people with some gene variants may be susceptible to Pb and smoking via oxidative stress. The aim of this study is to evaluate oxidative stress by measuring thiobarbituric acid reactive substances (TBARS) and the relationship of lipid peroxidation markers in Pb workers with different gene polymorphisms (rs4673 and rs1050450) in both smokers and nonsmokers. Blood samples were collected from 267 Pb workers who received their annual health examination in the Kaohsiung Medical University Hospital. Glutathione peroxidase 1 (GPx-1) rs1050450 and cytochrome B-245 Alpha Chain (CYBA) rs4673 single-nucleotide polymorphisms (SNP) were analyzed by specific primer-probes using Real-Time PCR methods. The interaction between blood Pb and smoking increased serum levels of TBARS and the ratio of oxidative low-density lipoprotein and low-density lipoprotein (oxLDL/LDL). Analysis of workers with rs1050450 SNPs showed higher blood Pb levels in the workers with CC genotype than those with CT genotype. Smokers had significantly higher blood Pb, alanine transaminase (ALT), TBARS, and OxLDL levels than nonsmokers. TBARS increased 0.009 nmol/mL when blood Pb increased one µg/dL in smokers compared to nonsmokers. The ratio of OxLDL/LDL increased 0.223 when blood Pb increased one µg/dL in smokers compared to nonsmokers. TBARS levels and the ratio of OxLDL/LDL were positively correlated and interacted between blood Pb and smoking after the adjustment of confounders, suggesting that smoking cessation is an important issue in the Pb-exposed working environment.
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Affiliation(s)
- Kuo-Jung Ho
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City 807, Taiwan;
| | - Tzu-Hua Chen
- Department of Family Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City 807, Taiwan;
| | - Chen-Cheng Yang
- Department of Occupational and Environmental Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung City 807, Taiwan;
| | - Yao-Chung Chuang
- Institute for Translation Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City 833, Taiwan;
| | - Hung-Yi Chuang
- Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung City 807, Taiwan
- Department of Public Health and Environmental Medicine, College of Medicine, Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
- Correspondence: ; Tel.: +886-7312-1101
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Arrasyid NK, Daulay M, Sari MI. Glutathione Peroxidase-1 Pro198Leu Variant in Tuberculosis-infected Type2 Diabetes Mellitus Patients at Pulmonary Polyclinic Medan. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Glutathione peroxidase-1 (GPx-1) is an antioxidant that plays an important to the body protection system against oxidative stress. The GPx-1 polymorphism that has been identified in individual with several diseases.
AIM: This study aimed to observe the distribution of GPx-1 Pro198Leu variant in tuberculosis (TB)-infected Type 2 diabetes mellitus (T2DM) patients at pulmonary polyclinic Medan. GPx-1 Pro198Leu polymorphism was genotyped in 40 T2DM patients that also infected by TB.
MATERIALS AND METHODS: Analysis of GPx-1 Pro198Leu polymorphism was done using polymerase chain reaction (PCR) and restriction fragment length polymorphism. The PCR products were digested 4 h at 37°C with Apa1 restriction enzyme. The result of Apa1 enzyme digestion was visualized with 4% agarose.
RESULTS: From 40 TB-infected T2DM patients, the frequency of genotypes CC,CT, and TT were, respectively, 82.5%, 17.5%, and 0%. The frequency of C allele was higher than T allele, i.e. 91.3% and 8.7%.
CONCLUSION: It was concluded that in TB-infected T2DM patients at pulmonary polyclinic Medan, the GPx-1 Pro198Leu polymorphism has CC variant higher than CT, whereas the TT genotype was not found. The frequency of the C allele is higher than the T allele.
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Akinci G, Savelieff MG, Gallagher G, Callaghan BC, Feldman EL. Diabetic neuropathy in children and youth: New and emerging risk factors. Pediatr Diabetes 2021; 22:132-147. [PMID: 33205601 DOI: 10.1111/pedi.13153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/02/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022] Open
Abstract
Pediatric neuropathy attributed to metabolic dysfunction is a well-known complication in children and youth with type 1 diabetes. Moreover, the rise of obesity and in particular of type 2 diabetes may cause an uptick in pediatric neuropathy incidence. However, despite the anticipated increase in neuropathy incidence, pathogenic insights and strategies to prevent or manage neuropathy in the setting of diabetes and obesity in children and youth remain unknown. Data from adult studies and available youth cohort studies are providing an initial understanding of potential diagnostic, management, and preventative measures in early life. This review discusses the current state of knowledge emanating from these efforts, with particular emphasis on the prevalence, clinical presentation, diagnostic approaches and considerations, and risk factors of neuropathy in type 1 and type 2 diabetes in children and youth. Also highlighted are current management strategies and recommendations for neuropathy in children and youth with diabetes. This knowledge, along with continued and sustained emphasis on identifying and eliminating modifiable risk factors, completing randomized controlled trials to assess effectiveness of strategies like weight loss and exercise, and enhancing awareness to support early detection and prevention, are pertinent to addressing the rising incidence of neuropathy associated with diabetes and obesity in children and youth.
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Affiliation(s)
- Gulcin Akinci
- Department of Neurology, University of Michigan Medicine, Ann Arbor, Michigan, USA
| | - Masha G Savelieff
- Department of Neurology, University of Michigan Medicine, Ann Arbor, Michigan, USA
| | - Gary Gallagher
- Department of Neurology, University of Michigan Medicine, Ann Arbor, Michigan, USA
| | - Brian C Callaghan
- Department of Neurology, University of Michigan Medicine, Ann Arbor, Michigan, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan Medicine, Ann Arbor, Michigan, USA
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10
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Jamshidi M, Mohammadi Pour S, Bahadoram M, Mahmoudian-Sani MR, Saeedi Boroujeni A. Genetic polymorphisms associated with polycystic ovary syndrome among Iranian women. Int J Gynaecol Obstet 2020; 153:33-44. [PMID: 33314055 DOI: 10.1002/ijgo.13534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/05/2020] [Accepted: 12/09/2020] [Indexed: 12/27/2022]
Abstract
Polycystic ovary syndrome (PCOS) involves abnormalities in ovarian, reproductive, and metabolic systems. Genetic polymorphisms associated with individual differences and variations might be related to complex disorders with unknown causes, including PCOS. Several leading genetic markers with known cellular functions have been identified among Iranian women presenting with PCOS. In particular, the existing evidence shows a significant relationship between PCOS and the following genetic polymorphisms: rs2275913 (interleukin-17A), rs9927163 (interleukin-32), Pro12Ala (peroxisome proliferator-activated receptor-γ), rs17173608 (chemerin), rs2236242 (vaspin), ApaI (vitamin D receptor), and rs7895833 (sirtuin 1). In addition, a higher risk of PCOS is associated with the rs2910164 (microRNA 146a), rs2241766 (adiponectin), -34 T/C (cytochrome 17), and rs1800682 (Fas) polymorphisms. Furthermore, protective effects against PCOS have been reported for the A4223C polymorphism of adenosine deaminase 1. Overall, the available data indicate that Iranian women with PCOS have a higher prevalence of polymorphisms in inflammation- and metabolism-related genes, but not in insulin-related genes. More extensive studies are needed to identify the ethnicity-related genetic associations in PCOS.
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Affiliation(s)
- Mohammad Jamshidi
- Department of Laboratory Sciences, School of Allied Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Somayeh Mohammadi Pour
- Department of Obstetrics and Gynecology, School of Medicine Lorestan, University of Medical Sciences, Khorramabad, Iran
| | - Mohammad Bahadoram
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Reza Mahmoudian-Sani
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Saeedi Boroujeni
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,ImmunologyToday, Universal Scientific Education and Research Network, Tehran, Iran
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11
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The Role of Oxidative Stress in Peripheral Neuropathy. J Mol Neurosci 2020; 70:1009-1017. [PMID: 32103400 DOI: 10.1007/s12031-020-01495-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/05/2020] [Indexed: 12/17/2022]
Abstract
Peripheral neuropathy (PN) is a common disease affecting about 5% of the general population after the age of 50. Causes of PN are numerous and include genetic, diabetes, alcohol, vitamin deficiencies, and gluten sensitivity among others. This systematic review aimed to study the association between oxidative stress and PN in an attempt to better understand PN pathogenesis. A computer-based, systematic search was conducted on the PubMed database, and ensuing data from included articles was analyzed and discussed in this review. Sixty-nine papers were eligible and were used for this review. Peripheral neuropathy is associated with an increase of reactive oxygen species and a decrease in endogenous antioxidants. Genetic predisposition to oxidative damage may be a factor. Antioxidant treatment is promising regarding treatment. Though further research is necessary to better understand the underlying mechanism, it is evident that oxidative stress is implicated in the pathogenesis of - or is at least systematically present in - PN.
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12
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Vitamin D Supplementation Is Associated with Increased Glutathione Peroxidase-1 Levels in Arab Adults with Prediabetes. Antioxidants (Basel) 2020; 9:antiox9020118. [PMID: 32013162 PMCID: PMC7070325 DOI: 10.3390/antiox9020118] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/26/2020] [Accepted: 01/26/2020] [Indexed: 02/07/2023] Open
Abstract
Vitamin D supplementation may be used to lower oxidative stress. This interventional study aimed to investigate the effects of vitamin D supplementation on glutathione peroxidase 1 (GPx1) levels and other parameters in Arab adults with prediabetes. A total of 203 Saudi adults with prediabetes and vitamin D deficiency [intervention group, N = 146 (53 males and 93 females); control group, N = 57 (25 males and 32 females)] were included in this non-randomized, six-month intervention study. The intervention group received 50,000 international units (IU) cholecalciferol tablets once a week for two months, then twice a month for the next two months, followed by 1000 IU daily for the last two months. The control group received no supplementation. Serum 25(OH)D, lipid profile, glucose, C-reactive protein (CRP) and GPx1 were measured at baseline and after six months. Post-intervention, GPx1 concentrations increased significantly in the intervention group [17.3 (11.5–59.0) vs 26.7 (11.4–59.9) p < 0.01] while no changes were observed in the control group (p = 0.15). This significant increase in 25(OH)D and GPx1 levels persisted after adjusting for age and BMI. Stratification according to sex revealed that this favourable increase in GPx1 was true only for males (p = 0.002). In all groups, baseline GPx1 was inversely correlated with low density lipoprotein (LDL)-cholesterol (r = −0.26, p < 0.01) and body mass index (BMI) (r = −0.20, p < 0.05), while positively correlated with age (r = 0.18, p < 0.05) and systolic blood pressure (r = 0.19, p < 0.05). In conclusion, vitamin D supplementation favourably enhanced GPx1 levels in adult Arabs with prediabetes, particularly in males.
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Kallinikou D, Soldatou A, Tsentidis C, Louraki M, Kanaka-Gantenbein C, Kanavakis E, Karavanaki K. Diabetic neuropathy in children and adolescents with type 1 diabetes mellitus: Diagnosis, pathogenesis, and associated genetic markers. Diabetes Metab Res Rev 2019; 35:e3178. [PMID: 31083769 DOI: 10.1002/dmrr.3178] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/10/2019] [Accepted: 05/07/2019] [Indexed: 01/09/2023]
Abstract
Diabetic neuropathy (DN) is a common long-term complication of type 1 (T1D) and type 2 (T2D) diabetes mellitus, with significant morbidity and mortality. DN is defined as impaired function of the autonomic and/or peripheral nervous system, often subclinical, particularly in children and adolescents with T1D. Nerve conduction studies (NCS) and skin biopsies are considered gold-standard methods in the assessment of DN. Multiple environmental and genetic factors are involved in the pathogenesis of DN. Specifically, the role of metabolic control and glycemic variability is of paramount importance. A number of recently identified genes, including the AKR1B1, VEGF, MTHFR, APOE, and ACE genes, contribute significantly in the pathogenesis of DN. These genes may serve as biomarkers to predict future DN development or treatment response. In addition, they may serve as the basis for the development of new medications or gene therapy. In this review, the diagnostic evaluation, pathogenesis, and associated genetic markers of DN in children and adolescents with T1D are presented and discussed.
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Affiliation(s)
- Dimitra Kallinikou
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
| | - Alexandra Soldatou
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
| | - Charalambos Tsentidis
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
| | - Maria Louraki
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
| | - Christina Kanaka-Gantenbein
- Diabetes Center, Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Emmanouil Kanavakis
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
- Department of Medical Genetics, Choremeio Research Laboratory, National and Kapodistrian University of Athens, Athens, Greece
| | - Kyriaki Karavanaki
- Diabetes and Metabolism Clinic, 2nd Department of Pediatrics, National and Kapodistrian University of Athens-Faculty of Medicine, "P.&A. Kyriakou" Children's Hospital, Athens, Greece
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14
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Zhao Y, Zhu R, Wang D, Liu X. Genetics of diabetic neuropathy: Systematic review, meta-analysis and trial sequential analysis. Ann Clin Transl Neurol 2019; 6:1996-2013. [PMID: 31557408 PMCID: PMC6801182 DOI: 10.1002/acn3.50892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Diabetic neuropathy (DN) is one of the most common complications of diabetes that occurs in more than 67% of individuals with diabetes. Genetic polymorphisms may play an important role in DN development. However, until now, the association between genetic polymorphisms and DN risk has remained unknown. We performed a systematic review, meta-analysis, and trial sequential analysis (TSA) of the association between all genetic polymorphisms and DN risk. METHODS Relevant published studies examining the relationship between all genetic polymorphisms and DN were obtained based on a designed search strategy up to 28 February 2019. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess overall pooled effects of genetic models as well as in subgroup analyses. Sensitive analysis and publication bias were applied to evaluate the reliability of the study. Moreover, TSA was conducted to estimate the robustness of the results. RESULTS We conducted a systematic review of a total of 1256 articles, and then 106 publications reporting on 136 polymorphisms of 76 genes were extracted. We performed 107 meta-analyses on 36 studies involving 12,221 subjects to derive pooled effect estimates for eight polymorphisms. We identified that ACE I>D, MTHFR 1298A/C, GPx-1 rs1050450, and CAT -262C/T were associated with DN, while MTHFR C677T, GSTM1, GSTT1, and IL-10 -1082G/A were not. Sensitivity analysis, funnel plot, and Egger's test displayed robust results. Furthermore, the results of TSA indicated sufficient sample size in studies of ACE, GPx-1, GSTM1, and IL-10 polymorphisms. INTERPRETATION Our study assessed the association between ACE I>D, MTHFR C677T, MTHFR 1298A/C, GPx-1 rs1050450, CAT -262C/T, GSTM1, GSTT1, and IL-10 -1082G/A polymorphisms and DN risk. We hope that the data in our research study are used to study DN genetics.
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Affiliation(s)
- Yating Zhao
- Department of NeurologyFirst Affiliated Hospital of China Medical UniversityShenyangLiaoning110001China
| | - Ruixia Zhu
- Department of NeurologyFirst Affiliated Hospital of China Medical UniversityShenyangLiaoning110001China
| | - Danni Wang
- Department of EndocrinologyThe Fifth People's Hospital of DalianDalianLiaoning116000China
| | - Xu Liu
- Department of NeurologyFirst Affiliated Hospital of China Medical UniversityShenyangLiaoning110001China
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15
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Teimoori B, Moradi-Shahrebabak M, Razavi M, Rezaei M, Harati-Sadegh M, Salimi S. The effect of GPx-1 rs1050450 and MnSOD rs4880 polymorphisms on PE susceptibility: a case- control study. Mol Biol Rep 2019; 46:6099-6104. [PMID: 31512047 DOI: 10.1007/s11033-019-05045-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/27/2019] [Indexed: 12/26/2022]
Abstract
Preeclampsia (PE) is a serious pregnancy complication whose etiology is not fully understood. However, previous reports have suggested that oxidative stress and genetic variants may contribute to the development of PE. This study aimed to examine the relationship between the Glutathione peroxidase-1(GPx-1) and Manganese Superoxide dismutase (MnSOD) polymorphisms and preeclampsia (PE) risk in Iranian women. Genotyping of the studied women, including 179 preeclamptic cases and 202 controls, for GPx-1 rs1050450 and MnSOD rs4880 polymorphisms was conducted using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Our results showed a 1.7- to 1.6-fold increased risk of PE in the rs1050450 CT and CT + TT (dominant model) genotypes compared to CC genotype (OR = 1.7, 95%CI 1.1-2.7; P = 0.01 and OR = 1.6, 95%CI 1.1-2.4; P = 0.02; respectively). We also found a marked correlation between TC and CC genotypes of MnSOD rs4880 polymorphism and a 1.9- to 2.3-fold increase risk of PE (OR = 1.9, 95%CI 1.2-2.9; P = 0.005 and OR = 2.3, 95%CI 1-5.1; P = 0.04, respectively). The rs4880 MnSOD polymorphism was correlated with increased risk of PE in the allelic and dominant models (OR = 1.8, 95% CI 1.2-2.5, P = 0.002; OR = 1.9, 95%CI 1.3-3, P = 0.002, respectively). High frequency of TC/CC genotype of MnSOD rs4880 and CT genotypes of rs1050450 polymorphism in PE patients compared to controls showed the contribution of these variants to PE susceptibility.
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Affiliation(s)
- Batool Teimoori
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Maryam Moradi-Shahrebabak
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Maryam Razavi
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahnaz Rezaei
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdiyeh Harati-Sadegh
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saeedeh Salimi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
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16
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Salahshoor MR, Sohrabi M, Jalili F, Jalili P, Rezavand N, Haghnazari L, Jalili C. No evidence for a major effect of three common polymorphisms of the GPx1, MnSOD, and CAT genes on PCOS susceptibility. J Cell Biochem 2019; 120:2362-2369. [PMID: 30206965 DOI: 10.1002/jcb.27564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/02/2018] [Indexed: 01/24/2023]
Abstract
AIM Polycystic ovary syndrome (PCOS) is one of the prevalent endocrine-metabolic disorders. It is proposed that oxidative stress contributes to PCOS susceptibility and its metabolic associations. The current study aimed to investigate the influence of GPx1 (rs1050450), MnSOD (rs4880), and Catalase (rs1001179) variants with PCOS susceptibility, for the first time. METHODS In a case-control study, 350 Kurdish female volunteers (175 PCOS patients and 175 healthy controls) from Western Iran were studied. Genotyping for GPx1 and MnSOD were done using PCR-RFLP and for CAT the allele-specific PCR method was used. RESULTS The percentage of patients suffering from hirsutism, acne, and acanthosis among patients with PCOS were 44.6%, 30.3%, and 14.9%, respectively. Distribution of alleles among patients suffering from PCOS versus healthy women was 'Pro' (69.1% vs 68.8%) and 'Leu' (31.4% vs 31.2%) for Gpx1, 'Ala' (61.43% vs 56.57%) and 'Val' (38.57% vs 43.43%) for MnSOD, and 'C' (83.43% vs 84.57%) and 'T' (16.57% vs 15.43%) for CAT. CONCLUSION GPx1 (rs1050450), MnSOD (rs4880), and CAT (rs1001179) variants might not be a risk factor for PCOS.
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Affiliation(s)
- Mohammad Reza Salahshoor
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Maryam Sohrabi
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Faramarz Jalili
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Parnian Jalili
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Negin Rezavand
- Department of Obstetrics and Gynaecology, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Lida Haghnazari
- Department of Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
| | - Cyrus Jalili
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Kermanshah Province, Iran
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17
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Gholinejad Z, Faghfouri AH, Zarrin R, Rasmi Y. Association of glutathione peroxidase 1 gene polymorphism (rs1050450) with Hashimoto's thyroiditis in Northwest Iran. Meta Gene 2018. [DOI: 10.1016/j.mgene.2018.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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18
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Kopp TI, Outzen M, Olsen A, Vogel U, Ravn-Haren G. Genetic polymorphism in selenoprotein P modifies the response to selenium-rich foods on blood levels of selenium and selenoprotein P in a randomized dietary intervention study in Danes. GENES AND NUTRITION 2018; 13:20. [PMID: 30008961 PMCID: PMC6045871 DOI: 10.1186/s12263-018-0608-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022]
Abstract
Background Selenium is an essential trace element and is suggested to play a role in the etiology of a number of chronic diseases. Genetic variation in genes encoding selenoproteins, such as selenoprotein P and the glutathione peroxidases, may affect selenium status and, thus, individual susceptibility to some chronic diseases. In the present study, we aimed to (1) investigate the effect of mussel and fish intake on glutathione peroxidase enzyme activity and (2) examine whether single nucleotide polymorphisms in the GPX1, GPX4, and SELENOP genes modify the effect of mussel and fish intake for 26 weeks on whole blood selenium, plasma selenoprotein P concentrations, and erythrocyte GPX enzyme activity in a randomized intervention trial in Denmark. Results CC homozygotes of the SELENOP/rs3877899 polymorphism who consumed 1000 g fish and mussels per week for 26 consecutive weeks had higher levels of both selenoprotein P (difference between means - 4.68 ng/mL (95% CI - 8.49, - 0.871)) and whole blood selenium (difference between means - 5.76 (95% CI - 12.5, 1.01)) compared to fish and mussel consuming T-allele carriers although the effect in whole blood selenium concentration was not statistically significant. Conclusions Our study indicates that genetically determined variation in SELENOP leads to different responses in expression of selenoproteins following consumption of selenium-rich foods. This study also emphasizes the importance of taking individual aspects such as genotypes into consideration when assessing risk in public health recommendations.
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Affiliation(s)
- Tine Iskov Kopp
- 1National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs Lyngby, Denmark.,2Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark.,3The Danish Multiple Sclerosis Registry, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark.,5The Danish Multiple Sclerosis Center, Department of Neurology, The Danish Multiple Sclerosis Registry, Section 7801, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - Malene Outzen
- 1National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs Lyngby, Denmark.,2Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark
| | - Anja Olsen
- 2Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark
| | - Ulla Vogel
- 4National Research Centre for the Working Environment, Lersø Parkallé 105, 2100 Copenhagen Ø, Denmark
| | - Gitte Ravn-Haren
- 1National Food Institute, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs Lyngby, Denmark
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19
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20
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Chao CT, Huang JW, Chiang CK, Chen YC, Fang CC, Hu FC, Chang CC, Yen CJ. Diabetes mellitus, superoxide dismutase and peroxisome proliferator activated receptor gamma polymorphisms modify the outcome of end-stage renal disease patients of Han Chinese origin. Nephrology (Carlton) 2018; 23:117-125. [PMID: 27925431 DOI: 10.1111/nep.12975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 11/15/2016] [Accepted: 11/29/2016] [Indexed: 12/14/2022]
Abstract
AIM Increased oxidative stress significantly modifies the outcome of patients with diabetes mellitus (DM) and end-stage renal disease (ESRD), and is counteracted by antioxidative capacity. We aimed to investigate whether antioxidant single nucleotide polymorphisms (SNPs) influence the outcome of ESRD individuals and the influences exerted by DM, which has not been tested before. METHODS We prospectively enrolled multi-centre ESRD patients of Han Chinese origin between 2002 and 2003, recording their antioxidant (superoxide dismutase [SOD2], glutathione peroxidase [GPX1]) and peroxisome proliferator activated receptor-γ (PPAR-γ) genotyping results, and stratified based on DM. They were followed up until 2008, with risk factors for mortality analyzed by Cox proportional hazard regression. RESULTS We discovered that diabetic ESRD carriers of CC genotype of SOD2 exon 2 had an increased risk of mortality compared to non-diabetic ones with other genotypes (hazard ratio [HR] 4.04, P = 0.04), while GPX1 SNPs had no influence. Interactions between SOD2 and PPAR-γ SNPs regarding the mortality influence were also detected (for SOD2 CC genotype x PPAR-γ exon 6 CT genotype, HR 3.19, P = 0.008), suggesting the importance of considering a combination panel of SNPs on patient survival. CONCLUSION This might be the largest study focusing on the relationship between antioxidant SNPs and the outcomes of diabetic ESRD patients of Han Chinese origin. More studies are needed to validate our findings.
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Affiliation(s)
- Chia-Ter Chao
- Department of Medicine, National Taiwan University Hospital Jinshan branch, New Taipei City, Taiwan.,Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jenq-Wen Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, National Taiwan University, Taipei, Taiwan.,Department of Integrated Diagnostics and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Ching Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Cheng-Chung Fang
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Fu-Chang Hu
- Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan
| | - Chen-Chih Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Jen Yen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Geriatric Medicine and Gerontology, National Taiwan University Hospital, Taipei, Taiwan
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21
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Buraczynska M, Buraczynska K, Dragan M, Ksiazek A. Pro198Leu Polymorphism in the Glutathione Peroxidase 1 Gene Contributes to Diabetic Peripheral Neuropathy in Type 2 Diabetes Patients. Neuromolecular Med 2017; 19:147-153. [PMID: 27592002 PMCID: PMC5334407 DOI: 10.1007/s12017-016-8438-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/26/2016] [Indexed: 12/14/2022]
Abstract
Glutathione peroxidase 1 (Gpx1) is an endogenous antioxidant enzyme. The T allele of the Pro198Leu polymorphism in the Gpx1 (rs1050450, 198C > T) gene is associated with reduced enzyme activity. The aim of this study was to evaluate the association between Pro198Leu polymorphism and risk of diabetic peripheral neuropathy (DPN). We examined 1244 T2DM patients and 730 healthy controls. In the patient group, 33 % had diabetic peripheral neuropathy. All subjects were genotyped for the Gpx1 Pro198Leu polymorphism by polymerase chain reaction and restriction analysis. A significant increase in the T allele and TT genotype frequencies was observed in DPN patients compared to those without DPN (OR 1.55, 95 % CI 1.30-1.85 and 1.89, 95 % CI 1.30-2.74, respectively). The association remained significant after correction for age, disease duration, HbA1c and BMI. When distribution of T allele was compared between DPN+ and DPN- subgroups and controls, OR was 1.54 for DPN+ and 1.00 for DPN- patients. In conclusion, our findings suggest that Gpx1 Pro198Leu genotypes are significantly associated with the risk of diabetic peripheral neuropathy in patients with T2DM. The study provides new clinically relevant information regarding genetic determinants of susceptibility to diabetic neuropathy.
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Affiliation(s)
- Monika Buraczynska
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
| | - Kinga Buraczynska
- Department of Neurology, Medical University of Lublin, Lublin, Poland
| | - Michal Dragan
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
| | - Andrzej Ksiazek
- Department of Nephrology, Medical University of Lublin, Dr K. Jaczewskiego 8, 20-954 Lublin, Poland
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22
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Politi C, Ciccacci C, D'Amato C, Novelli G, Borgiani P, Spallone V. Recent advances in exploring the genetic susceptibility to diabetic neuropathy. Diabetes Res Clin Pract 2016; 120:198-208. [PMID: 27596057 DOI: 10.1016/j.diabres.2016.08.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 05/24/2016] [Accepted: 08/19/2016] [Indexed: 01/22/2023]
Abstract
Diabetic polyneuropathy and cardiovascular autonomic neuropathy are common and disabling complications of diabetes. Although glycaemic control and cardiovascular risk factors are major contributory elements in its development, diabetic neuropathy recognizes a multifactorial influence and a multiplicity of pathogenetic mechanisms. Thus genetic and environmental factors may contribute to its susceptibility, each with a modest contribution, by targeting various metabolic and microvascular pathways whose alterations intervene in diabetic neuropathy pathogenesis. This review is aimed at describing major data from the available literature regarding genetic susceptibility to diabetic neuropathies. It provides an overview of the genes reported as associated with the development or progression of these complications, i.e. ACE, MTHFR, GST, GLO1, APOE, TCF7L2, VEGF, IL-4, GPX1, eNOS, ADRA2B, GFRA2, MIR146A, MIR128A. The identification of genetic susceptibility can help in both expanding the comprehension of the pathogenetic mechanisms of diabetic nerve damage and identifying biomarkers of risk prediction and response to therapeutic intervention.
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Affiliation(s)
- Cristina Politi
- Department of Biomedicine and Prevention, Genetics Section, University of Rome "Tor Vergata", Italy
| | - Cinzia Ciccacci
- Department of Biomedicine and Prevention, Genetics Section, University of Rome "Tor Vergata", Italy
| | - Cinzia D'Amato
- Department of Systems Medicine, University of Rome Tor Vergata, via Montpellier 1, 00133 Rome, Italy
| | - Giuseppe Novelli
- Department of Biomedicine and Prevention, Genetics Section, University of Rome "Tor Vergata", Italy
| | - Paola Borgiani
- Department of Biomedicine and Prevention, Genetics Section, University of Rome "Tor Vergata", Italy.
| | - Vincenza Spallone
- Department of Systems Medicine, University of Rome Tor Vergata, via Montpellier 1, 00133 Rome, Italy
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Sousa VCSD, Carmo RF, Vasconcelos LRS, Aroucha DCBL, Pereira LMMB, Moura P, Cavalcanti MSM. Association of Catalase and Glutathione Peroxidase 1 Polymorphisms with Chronic Hepatitis C Outcome. Ann Hum Genet 2016; 80:145-53. [PMID: 26990426 DOI: 10.1111/ahg.12152] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 02/03/2016] [Indexed: 12/14/2022]
Abstract
The hepatic damage caused by hepatitis C virus (HCV) infection is associated with the host immune response and viral regulatory factors. Catalase (CAT) and glutathione peroxidase 1 (GPX1) are antioxidant enzymes located in the peroxisomes and mitochondria, respectively, and are responsible for the control of intracellular hydrogen peroxide levels. Polymorphisms in CAT (C-262T) and GPX1 (Pro198Leu) are correlated with serum levels and enzyme activity. This study aimed to investigate the association of genetic polymorphisms of CAT C-262T (rs1001179) and GPX1 Pro198Leu (rs1050450) with different stages of liver fibrosis and development of hepatocellular carcinoma (HCC). This study included 445 patients with chronic hepatitis C, of whom 139 patients had mild fibrosis (F0-F1), 200 had moderate/severe fibrosis (F2-F4), and 106 had HCC. Genotyping of SNPs was performed by real-time PCR using TaqMan probes. The Pro/Pro genotype of GPX1 was significantly associated with fibrosis severity, HCC, Child Pugh score, and BCLC staging. Additionally, patients carrying both CT+TT genotypes in the CAT gene and the Pro/Pro genotype in the GPX1 gene had higher risk for developing moderate/severe fibrosis or HCC (p = 0.009, OR 2.40 and p = 0.002, OR 3.56, respectively). CAT and GPX1 polymorphisms may be implicated in the severity of liver fibrosis and HCC caused by HCV.
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Affiliation(s)
- Vanessa C S D Sousa
- Instituto de Ciências Biológicas - ICB, Universidade de Pernambuco - UPE, Brazil
| | - Rodrigo F Carmo
- Colegiado de Farmácia, Universidade Federal do Vale do São Francisco - UNIVASF, Brazil.,Rede Nordeste de Biotecnologia - RENORBIO, Brazil
| | - Luydson R S Vasconcelos
- Instituto do Fígado e Transplantes de Pernambuco - IFP, Brazil.,Centro de Pesquisas Aggeu Magalhães (FIOCRUZ), Brazil
| | - Dayse C B L Aroucha
- Instituto do Fígado e Transplantes de Pernambuco - IFP, Brazil.,Faculdade de Ciências Médicas, UPE, Brazil
| | - Leila M M B Pereira
- Instituto do Fígado e Transplantes de Pernambuco - IFP, Brazil.,Faculdade de Ciências Médicas, UPE, Brazil
| | - Patrícia Moura
- Instituto de Ciências Biológicas - ICB, Universidade de Pernambuco - UPE, Brazil
| | - Maria S M Cavalcanti
- Instituto de Ciências Biológicas - ICB, Universidade de Pernambuco - UPE, Brazil
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Masi S, D'Aiuto F, Cooper J, Salpea K, Stephens JW, Hurel SJ, Deanfield JE, Humphries SE. Telomere length, antioxidant status and incidence of ischaemic heart disease in type 2 diabetes. Int J Cardiol 2016; 216:159-64. [PMID: 27156058 PMCID: PMC4900130 DOI: 10.1016/j.ijcard.2016.04.130] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/01/2016] [Accepted: 04/16/2016] [Indexed: 12/14/2022]
Abstract
Background Type 2 diabetes (T2D) is associated with an increased risk of ischaemic heart disease (IHD). An accelerated process of vascular ageing induced by an increased oxidative stress exposure is suggested as potential pathway accounting for this association. However, no studies have explored the relationship between markers of vascular ageing, measures of oxidative stress and risk of IHD in T2D. Objectives To explore the association between plasma antioxidant status, marker of cellular ageing (leukocyte telomere length, LTL) and 10 years risk of IHD in patients with T2D. Methods Between 2001 and 2002, 489 Caucasians subjects with T2D were enrolled at the diabetic clinic, University College London Hospital. Plasma total anti-oxidant status (TAOS) and LTL were measured by photometric microassay and RT-PCR, respectively. The incidence of IHD over 10 years was determined through linkage with the national clinical audit of acute coronary syndrome in UK. Results At baseline, TAOS was associated with LTL (age adjusted: r = 0.106, p = 0.024). After 10 years, 61 patients developed IHD. Lower TAOS and shorter LTL at baseline predicted an increased IHD risk at follow-up (age adjusted: p = 0.033 and p = 0.040, respectively). These associations were independent of age, gender, cardiovascular risk factors, circulating levels of CRP and medication differences. Conclusions Reduced TAOS and short LTL are interrelated pathways which predict risk of IHD in patients with T2D. Our findings suggest that antioxidant defences are important to maintain telomere integrity, potentially reducing the progression of vascular ageing in patients with T2D.
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Affiliation(s)
- Stefano Masi
- National Centre for Cardiovascular Prevention and Outcomes (NCCPO), Institute of Cardiovascular Science, University College London, UK; Department of Clinical Gerontology, King's College London, UK.
| | - Francesco D'Aiuto
- Periodontology Department, Eastman Dental Institute, University College London, UK
| | - Jackie Cooper
- Division of Cardiovascular Genetics, British Heart Foundation Laboratories, Institute of Cardiovascular Science, University College London, UK
| | - Klelia Salpea
- Institute of Molecular Biology and Genetics, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | - Jeffrey W Stephens
- Diabetes Research Group, College of Medicine, Swansea University, Swansea, UK
| | - Steven J Hurel
- Department of Endocrinology, University College London Hospital, London, UK
| | - John E Deanfield
- National Centre for Cardiovascular Prevention and Outcomes (NCCPO), Institute of Cardiovascular Science, University College London, UK
| | - Steve E Humphries
- Division of Cardiovascular Genetics, British Heart Foundation Laboratories, Institute of Cardiovascular Science, University College London, UK
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Souiden Y, Mallouli H, Meskhi S, Chaabouni Y, Rebai A, Chéour F, Mahdouani K. MnSOD and GPx1 polymorphism relationship with coronary heart disease risk and severity. Biol Res 2016; 49:22. [PMID: 27067415 PMCID: PMC4828869 DOI: 10.1186/s40659-016-0083-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 03/24/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Disturbance of the equilibrium between reactive oxygen species (ROS) and anti-oxidants (AOX) has been implicated in various diseases, including atherosclerosis, the most common pathologic process underlying coronary heart disease (CHD). Thus, the defense systems against ROS are critical protecting blood vessel walls against oxidative damage. In this study, we investigate whether Ala16Val MnSOD and Pro198Leu GPx polymorphisms are associated with CHD susceptibility and/or severity. METHODS Both polymorphisms were genotyped in a sample of 203 controls and 164 patients. CHD risk and severity, antioxidant status (enzymatic and/or non enzymatic) and biochemical parameters were assessed and analysed by genotype. RESULTS A significant association of MnSOD variant to CHD risk was revealed in males. Males harboring the Val/Val genotype were approximately at twofold increased risk of CHD compared to controls (Ala carriers vs Val/Val, adjusted OR 1.89; 95 % CI 1.18‒3.42, p = 0.03). Significant decreases in SOD activity and total antioxidant status (TAS) were observed in Val carriers and by CHD status. Whereas, no association of GPx variant genotype (Leu/Leu) and activity to cardiopathy events was discerned. CHD severity, as demonstrated by the number of vessel stenosis, was associated with significantly higher frequency of Val allele and LDL levels in CHD subjects. CONCLUSIONS Our results showed a lack of association of Pro198Leu GPx polymorphism to CHD risk and severity. However, they suggest that Ala16Val MnSOD polymorphism and decreased antioxidant defences are likely contributed to CHD risk in Tunisian men. Furthermore, the Val encoding MnSOD allele and decreased SOD activity were significantly correlated with CHD stenosis progression.
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Affiliation(s)
- Yosra Souiden
- Laboratory of Biochemistry and Molecular Biology, Hospital of Ibn Eljazzar of Kairouan, Avenue Ibn Eljazzar, 3140, Kairouan, Tunisia. .,Laboratory of Analysis, Treatment and Valorization of the pollutants of the environment and products, Faculty of Pharmacy, Rue Ibn Sina, 5000, Monastir, Tunisia.
| | - Hela Mallouli
- Laboratory of Biochemistry and Molecular Biology, Hospital of Ibn Eljazzar of Kairouan, Avenue Ibn Eljazzar, 3140, Kairouan, Tunisia.,Laboratory of Analysis, Treatment and Valorization of the pollutants of the environment and products, Faculty of Pharmacy, Rue Ibn Sina, 5000, Monastir, Tunisia
| | - Salah Meskhi
- Department of Cardiovascular, Hospital of Ibn Eljazzar of Kairouan, Avenue Ibn Eljazzar, 3140, Kairouan, Tunisia
| | - Yassine Chaabouni
- Laboratory of Biochemistry and Molecular Biology, Hospital of Ibn Eljazzar of Kairouan, Avenue Ibn Eljazzar, 3140, Kairouan, Tunisia
| | - Ahmed Rebai
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, P. O. Box 1177, 3018, Sfax, Tunisia
| | - Foued Chéour
- Institute of Applied Biology of Medenine, 4119, Medenine, Tunisia
| | - Kacem Mahdouani
- Laboratory of Biochemistry and Molecular Biology, Hospital of Ibn Eljazzar of Kairouan, Avenue Ibn Eljazzar, 3140, Kairouan, Tunisia.,Laboratory of Analysis, Treatment and Valorization of the pollutants of the environment and products, Faculty of Pharmacy, Rue Ibn Sina, 5000, Monastir, Tunisia
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26
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Genetic polymorphisms (Pro197Leu of Gpx1, +35A/C of SOD1, -262C/T of CAT), the level of antioxidant proteins (GPx1, SOD1, CAT) and the risk of distal symmetric polyneuropathy in Polish patients with type 2 diabetes mellitus. Adv Med Sci 2016; 61:123-9. [PMID: 26674569 DOI: 10.1016/j.advms.2015.10.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 09/25/2015] [Accepted: 10/28/2015] [Indexed: 01/04/2023]
Abstract
PURPOSE Oxidative stress and impaired anti-oxidant defense are regarded as contributory factors for distal symmetric polyneuropathy (DSPN). The purpose of the study was to evaluate the plasma level of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) and the association between polymorphic variants in genes encoding for GPx1, SOD, CAT and the risk of DSPN in T2DM patients. MATERIAL/METHODS We included 401 individuals: 110 T2DM patients with DSPN, 135 T2DM patients without DSPN, and 156 control subjects with normoglycemia, and without DSPN. We employed RFPL-PCR to genotype polymorphic variants Pro197Leu of Gpx1, +35A/C of SOD1, -262C/T of CAT and ELISA tests to measure plasma level of SOD1, GPx1 and CAT. The odds ratios (ORs) and 95% confidence intervals (CIs) for each genotype and allele were calculated. RESULTS There was a significant decrease in the level of GPx1 (p<0.05), SOD1 (p<0.05) in T2DM patients with DSPN compared to healthy subjects. T2DM patients without DSPN showed a statistically lower serum level of GPX1 (p<0.05) than healthy subjects. SOD 1 and CAT levels were lower in T2DM patients with DSPN compared to T2DM patients without DSPN (p<0.05). The genetic analysis revealed the lack of association between examined polymorphic variants and the risk of DSPN. CONCLUSIONS The examined polymorphic variants are not associated with DSPN in Polish T2DM patients. The obtained results suggest that disturbances in antioxidant defense system may play significant role in the development and progression of DSPN.
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27
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Saravani S, Miri HR, Saravani R, Yari D, Nakhaee A, Mahjoubifard M. Association of catalase (rs7943316) and glutathione peroxidase-1 (rs1050450) polymorphisms with the risk of type 2 diabetes (T2DM). MOLECULAR GENETICS MICROBIOLOGY AND VIROLOGY 2016. [DOI: 10.3103/s0891416815040096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Davoudi S, Sobrin L. Novel Genetic Actors of Diabetes-Associated Microvascular Complications: Retinopathy, Kidney Disease and Neuropathy. Rev Diabet Stud 2016; 12:243-59. [PMID: 26859656 DOI: 10.1900/rds.2015.12.243] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Both type 1 and type 2 diabetes mellitus can lead to the common microvascular complications of diabetic retinopathy, kidney disease, and neuropathy. Diabetic patients do not universally develop these complications. Long duration of diabetes and poor glycemic control explain a lot of the variability in the development of microvascular complications, but not all. Genetic factors account for some of the remaining variability because of the heritability and familial clustering of these complications. There have been a large number of investigations, including linkage studies, candidate gene studies, and genome-wide association studies, all of which have sought to identify the specific variants that increase susceptibility. For retinopathy, several genome-wide association studies have been performed in small or midsize samples, but no reproducible loci across the studies have been identified. For diabetic kidney disease, genome-wide association studies in larger samples have been performed, and loci for this complication are beginning to emerge. However, validation of the existing discoveries, and further novel discoveries in larger samples is ongoing. The amount of genetic research into diabetic neuropathy has been very limited, and much is dedicated to the understanding of genetic risk factors only. Collaborations that pool samples and aim to detect phenotype classifications more precisely are promising avenues for a better explanation of the genetics of diabetic microvascular complications.
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Affiliation(s)
- Samaneh Davoudi
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, 243 Charles Street, Boston, MA 02114, USA
| | - Lucia Sobrin
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, 243 Charles Street, Boston, MA 02114, USA
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29
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Cardoso BR, Busse AL, Hare DJ, Cominetti C, Horst MA, McColl G, Magaldi RM, Jacob-Filho W, Cozzolino SMF. Pro198Leu polymorphism affects the selenium status and GPx activity in response to Brazil nut intake. Food Funct 2016; 7:825-33. [DOI: 10.1039/c5fo01270h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selenoproteins play important roles in antioxidant mechanisms, but it is hypothesised that single polymorphism nucleotides (SNPs) may affect their function.
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Affiliation(s)
- Bárbara R. Cardoso
- Faculty of Pharmaceutical Sciences
- Department of Food and Experimental Nutrition
- University of São Paulo
- São Paulo
- Brazil
| | - Alexandre L. Busse
- Geriatrics Division
- Department of Internal Medicine
- University of São Paulo Medical School
- São Paulo
- Brazil
| | - Dominic J. Hare
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
- Elemental Bio-imaging Facility
| | | | - Maria A. Horst
- Faculty of Pharmaceutical Sciences
- Department of Food and Experimental Nutrition
- University of São Paulo
- São Paulo
- Brazil
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
| | - Regina M. Magaldi
- Geriatrics Division
- Department of Internal Medicine
- University of São Paulo Medical School
- São Paulo
- Brazil
| | - Wilson Jacob-Filho
- Geriatrics Division
- Department of Internal Medicine
- University of São Paulo Medical School
- São Paulo
- Brazil
| | - Silvia M. F. Cozzolino
- Faculty of Pharmaceutical Sciences
- Department of Food and Experimental Nutrition
- University of São Paulo
- São Paulo
- Brazil
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30
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Ji ZY, Li HF, Lei Y, Rao YW, Tan ZX, Liu HJ, Yao GD, Hou B, Sun ML. Association of adiponectin gene polymorphisms with an elevated risk of diabetic peripheral neuropathy in type 2 diabetes patients. J Diabetes Complications 2015; 29:887-92. [PMID: 26144281 DOI: 10.1016/j.jdiacomp.2015.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/08/2015] [Accepted: 06/14/2015] [Indexed: 01/15/2023]
Abstract
OBJECTIVE In this study, we examined the association between two adiponectin (ADPN) gene polymorphisms, +45T/G and +276G/T, and susceptibility to diabetic peripheral neuropathy (DPN) in type 2 diabetes mellitus (T2DM) patients. METHODS A total of 180 T2DM patients were enrolled in this study and assigned to two groups: DPN group (n=90) and non-DPN (NDPN) group (n=90). In addition, 90 healthy subjects were chosen as healthy normal control (NC). The plasma level of ADPN was quantified by ELISA method and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used for genotype analysis of the two ADPN polymorphisms, +45T/G (rs2241766) and +276G/T (rs1501299), in all the study subjects. Statistical analysis of data was performed with SPSS version 20.0 software. RESULTS Serum levels of ADPN were markedly reduced in the DPN group compared to NDPN and NC groups (all P<0.05). The frequencies of TT, TG and GG genotypes and the T and G alleles of T45G and G276T polymorphisms in DPN group were significantly different than the NDPN group (all P<0.05). Notably, T45G and G276T polymorphisms were associated with significantly reduced plasma levels of ADPN in DPN and NDPN groups, compared to the NC group (P<0.001). Significant difference in ADPN plasma levels were also observed between TT, TG and GG genotypes of T45G and G276T polymorphisms. Our results indicate that the T allele in +45T/G and +276G/T polymorphisms is correlated with an elevated risk of DPN in T2DM patients. Haplotype analysis showed that GG and GT haplotypes showed a negative relationship with DPN, while TG haplotype positively correlated with risk of DPN in T2DM patients (all P<0.05). CONCLUSION Our results show that T45G and G276T polymorphisms of ADPN are associated with a significantly elevated risk of DPN in T2DM patients, likely by down-regulating ADPN serum level.
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Affiliation(s)
- Zhi-Yong Ji
- Department of Emergency, First Affiliated Hospital of Jilin University, Changchun130031, P. R. China
| | - Hai-Feng Li
- Department of Emergency, First Affiliated Hospital of Jilin University, Changchun130031, P. R. China
| | - Yu Lei
- Department of Emergency, First Affiliated Hospital of Jilin University, Changchun130031, P. R. China
| | - Yan-Wei Rao
- Department of Emergency, First Affiliated Hospital of Jilin University, Changchun130031, P. R. China
| | - Zeng-Xian Tan
- Department of Intervention, Handan Central Hospital, Handan 056001, P. R. China
| | - Huai-Jun Liu
- Department of Radiology, the Second Hospital of Hebei Medical University, Shi Jiazhuang 050050, P. R. China.
| | - Gen-Dong Yao
- Department of Function, Handan Central Hospital, Handan 056001, P. R. China
| | - Bo Hou
- Department of Computed Tomography, Handan Central Hospital, Handan 056001, P. R. China
| | - Ming-Li Sun
- Department of Emergency, First Affiliated Hospital of Jilin University, Changchun130031, P. R. China.
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Witzel II, Jelinek HF, Khalaf K, Lee S, Khandoker AH, Alsafar H. Identifying Common Genetic Risk Factors of Diabetic Neuropathies. Front Endocrinol (Lausanne) 2015; 6:88. [PMID: 26074879 PMCID: PMC4447004 DOI: 10.3389/fendo.2015.00088] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/13/2015] [Indexed: 12/13/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a global public health problem of epidemic proportions, with 60-70% of affected individuals suffering from associated neurovascular complications that act on multiple organ systems. The most common and clinically significant neuropathies of T2DM include uremic neuropathy, peripheral neuropathy, and cardiac autonomic neuropathy. These conditions seriously impact an individual's quality of life and significantly increase the risk of morbidity and mortality. Although advances in gene sequencing technologies have identified several genetic variants that may regulate the development and progression of T2DM, little is known about whether or not the variants are involved in disease progression and how these genetic variants are associated with diabetic neuropathy specifically. Significant missing heritability data and complex disease etiologies remain to be explained. This article is the first to provide a review of the genetic risk variants implicated in the diabetic neuropathies and to highlight potential commonalities. We thereby aim to contribute to the creation of a genetic-metabolic model that will help to elucidate the cause of diabetic neuropathies, evaluate a patient's risk profile, and ultimately facilitate preventative and targeted treatment for the individual.
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Affiliation(s)
- Ini-Isabée Witzel
- Biomedical Engineering Department, Khalifa University of Science, Technology and Research, Abu Dhabi, United Arab Emirates
| | - Herbert F. Jelinek
- Australian School of Advanced Medicine, Macquarie University, Sydney, NSW, Australia
- Centre for Research in Complex Systems, School of Community Health, Charles Sturt University, Albury, NSW, Australia
| | - Kinda Khalaf
- Biomedical Engineering Department, Khalifa University of Science, Technology and Research, Abu Dhabi, United Arab Emirates
| | - Sungmun Lee
- Biomedical Engineering Department, Khalifa University of Science, Technology and Research, Abu Dhabi, United Arab Emirates
| | - Ahsan H. Khandoker
- Biomedical Engineering Department, Khalifa University of Science, Technology and Research, Abu Dhabi, United Arab Emirates
- Electrical and Electronic Engineering Department, The University of Melbourne, Parkville, VIC, Australia
| | - Habiba Alsafar
- Biomedical Engineering Department, Khalifa University of Science, Technology and Research, Abu Dhabi, United Arab Emirates
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Zhang JX, Wang ZM, Zhang JJ, Zhu LL, Gao XF, Chen SL. Association of glutathione peroxidase-1 (GPx-1) rs1050450 Pro198Leu and Pro197Leu polymorphisms with cardiovascular risk: a meta-analysis of observational studies. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2014; 11:141-50. [PMID: 25009565 PMCID: PMC4076455 DOI: 10.3969/j.issn.1671-5411.2014.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 04/19/2014] [Accepted: 05/05/2014] [Indexed: 12/19/2022]
Abstract
Objective To clarify the association between rs1050450 polymorphism in Glutathione peroxidase-1 (GPx-1) and the risk of cardiovascular diseases (CVD) by performing a meta-analysis of published studies. There is growing evidence from different study types for an association of the GPx-1 polymorphism and cardiovascular outcomes, but observational studies have so far shown inconsistent results. Methods Relevant publications were searched through PubMed, Embase database databases and the Cochrane Library. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of association under the best genetic model. Both Q statistic and the I2 were used to check heterogeneity. Meta-regression analysis was performed to explore heterogeneity source. Sensitivity analysis, cumulative meta-analysis analysis and publication bias were used to test the reliability of the results. Results Data were available from two cohort studies and 8 case-control studies involving 1,430 cases and 3,767 controls. The pooled ORs for overall CVD risk was 1.36 with 95% CI: 1.08–1.70 under a co-dominant model, and that for East Asian subgroup was 1.84 (95% CI: 1.39–2.43). Substantial heterogeneity for ORs were detected among all the included studies, mainly caused by ethnic differences between East Asian and non-East Asian populations. Although Egger's regression test suggested no statistical significant publication bias, Begg's funnel plot exhibited obvious asymmetry. The statistical significance disappeared after adjusting for potential publication bias in the overall studies. However, no substantial publication bias was found in the East Asian subgroup. Conclusions GPx-1 gene Pro198Leu and Pro197Leu polymorphisms considerably increased the risk of CVD in the East Asian population. Large-scale investigations are needed to confirm the results in different ethnicities.
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Affiliation(s)
- Jun-Xia Zhang
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
| | - Zhi-Mei Wang
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
| | - Jun-Jie Zhang
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
| | - Lin-Lin Zhu
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
| | - Xiao-Fei Gao
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
| | - Shao-Liang Chen
- Department of Cardiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu Province 210006, China
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Matsuno S, Sasaki H, Yamasaki H, Yamaoka H, Ogawa K, Nakatani M, Hamanishi T, Doi A, Nakano Y, Wakasaki H, Furuta H, Nishi M, Akamizu T, Nanjo K. Pro198Leu missense polymorphism of the glutathione peroxidase 1 gene might be a common genetic predisposition of distal symmetric polyneuropathy and macrovascular disease in Japanese type 2 diabetic patients. J Diabetes Investig 2014; 2:474-82. [PMID: 24843532 PMCID: PMC4014907 DOI: 10.1111/j.2040-1124.2011.00127.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Aims/Introduction: We have previously reported that the Pro198Leu missense polymorphism in the glutathione peroxidase 1 (GPx‐1) gene was associated with frequent macrovascular disease (MVD). Our goal was to examine whether the GPx‐1 genotype is associated with diabetic neuropathy. Materials and Methods: We determined the GPx‐1 genotype in 173 Japanese type 2 diabetic patients who received medical interviews, physical examinations, nerve conduction studies, quantitative vibratory perception (QVP), head‐up tilt and heart rate variability tests by polymerase chain reaction‐restriction fragment‐length polymorphism. Diabetic sensorimotor distal symmetric polyneuropathy (DSPN) and diabetic autonomic neuropathy (DAN) were evaluated separately. DSPN and DAN were defined by two or more abnormalities of neuropathic leg symptoms, diminished Achilles tendon reflexes or impaired QVP in toes, and two autonomic dysfunctions, respectively. The association of the GPx‐1 genotype with DSPN, DAN, MVD and other clinical manifestations was analyzed. Results: The prevalence of DSPN, impaired QVP and painful leg cramps in patients having a genotype with Pro/Leu at the codon 198 (Pro/Leu type) was significantly higher than those with Pro/Pro type. As a result of multivariate analyses that contained the GPx‐1 genotype as an independent variable, the Pro/Leu type was extracted as a significant risk factor of DSPN, QVP impairment and MVD. The statistical significance did not disappear, even after proteinuria, retinopathy and a history of MVD were introduced as independent variables. In contrast, the GPx‐1 genotype was not associated with DAN. Conclusions: The Pro198Leu missense polymorphism of the GPx‐1 gene might have a common genetic predisposition to DSPN and MVD. (J Diabetes Invest, doi: 10.1111/j.2040‐1124.2011.00127.x, 2011)
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Affiliation(s)
- Shohei Matsuno
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hideyuki Sasaki
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hiroshi Yamasaki
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hiroyuki Yamaoka
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kenichi Ogawa
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Muneki Nakatani
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Tohru Hamanishi
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Asako Doi
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Yoshio Nakano
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hisao Wakasaki
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hiroto Furuta
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Masahiro Nishi
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Takashi Akamizu
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kishio Nanjo
- The First Department of Medicine, Wakayama Medical University, Wakayama, Japan
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Genetic associations with coronary heart disease: Meta-analyses of 12 candidate genetic variants. Gene 2013; 531:71-7. [DOI: 10.1016/j.gene.2013.07.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/21/2013] [Accepted: 07/04/2013] [Indexed: 01/30/2023]
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Abstract
β-Cell dysfunction is a critical component in the development of type 2 diabetes. Whilst both genetic and environmental factors contribute to the development of the disease, relatively little is known about the molecular network that is responsible for diet-induced functional changes in pancreatic β-cells. Recent genome-wide association studies for diabetes-related traits have generated a large number of candidate genes that constitute possible links between dietary factors and the genetic susceptibility for β-cell failure. Here, we summarize recent approaches for identifying nutritionally regulated transcripts in islets on a genome-wide scale. Polygenic mouse models for type 2 diabetes have been instrumental for investigating the mechanism of diet-induced β-cell dysfunction. Enhanced oxidative metabolism, triggered by a combination of dietary carbohydrates and fat, appears to play a critical role in the pathophysiology of diet-induced impairment of islets. More systematic studies of gene-diet interactions in β-cells of rodent models in combination with genetic profiling might reveal the regulatory circuits fundamental for the understanding of diet-induced impairments of β-cell function in humans.
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Affiliation(s)
- A Chadt
- German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
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