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Li J, Wei Y, Li J, Liu R, Xu S, Xiong S, Guo Y, Qiao X, Wang S. A novel duplex SYBR Green real-time PCR with melting curve analysis method for beef adulteration detection. Food Chem 2020; 338:127932. [PMID: 32932080 DOI: 10.1016/j.foodchem.2020.127932] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 07/30/2020] [Accepted: 08/23/2020] [Indexed: 01/09/2023]
Abstract
An efficient and reliable duplex SYBR Green real-time quantitative PCR (qPCR) method for beef products adulteration detection was developed based on bovine specific and vertebrate universal primers. By analyzing the numbers, positions (Tm value) of melting curve peaks of the duplex PCR products, we simultaneously identified bovine and preliminary screened non-bovine in samples, and also semi-quantified the bovine percentage according to the area ratios of peaks. All of these were necessary for adulteration determination. The specific and universal primers were designed based on mitochondrial genes ND4 and 16S rRNA respectively, their amplicons Tm values were 72.6 ± 0.5 °C and 79-81 °C. There might be some other peaks at 74-78 °C and above 81 °C if non-bovine components existed. Thelimit of detectionwas 1 pgforbovineDNA, and1 - 30 pg fornon-bovineDNAbasedon differentspecies.
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Affiliation(s)
- Jiapeng Li
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Yixuan Wei
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Jinchun Li
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Ruixi Liu
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Suigen Xu
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Suyue Xiong
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Ya Guo
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Xiaoling Qiao
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China
| | - Shouwei Wang
- China Meat Research Center, 100068 Beijing, China; Beijing Key Laboratory of Meat Processing Technology, 100068 Beijing, China.
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Reichert CO, de Macedo CG, Levy D, Sini BC, Monteiro AM, Gidlund M, Maselli LMF, Gualandro SFM, Bydlowski SP. Paraoxonases (PON) 1, 2, and 3 Polymorphisms and PON-1 Activities in Patients with Sickle Cell Disease. Antioxidants (Basel) 2019; 8:E252. [PMID: 31366068 PMCID: PMC6720480 DOI: 10.3390/antiox8080252] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/08/2019] [Accepted: 07/18/2019] [Indexed: 12/12/2022] Open
Abstract
(1) Background: Oxidative stress, chronic inflammation, vasoocclusion, and free iron are all features present in sickle cell disease. Paraoxonases (PON) are a family (PON-1, PON-2, PON-3) of antioxidant enzymes with anti-inflammatory action. Here, for the first time, we described PON-1 activities and PON-1, PON-2, PON-3 polymorphisms in patients with sickle cell disease, homozygous for HbSS, compared with healthy controls. (2) Methods: The groups were matched for age and gender. PON-1 activities (arylesterase and paraoxonase) were determined by enzymatic hydrolysis of phenylcetate and paraoxon, respectively. Polymorphisms were determined by Restriction Fragment Length Polymorphism- Polymerase Chain Reaction (RFLP-PCR). (3) Results: Plasma cholesterol and fractions, ApoA1 and ApoB levels were all decreased in sickle cell disease patients, while anti-oxidized low-density lipoprotein (LDL) antibodies and C-reactive protein were increased. Serum arylesterase activity was lower in sickle cell disease patients when compared with healthy controls. In patients, paraoxonase activity was higher in those with PON-1 RR Q192R polymorphism. In these patients, the increase of serum iron and ferritin levels and transferrin saturation were less pronounced than those observed in patients with QQ or QR polymorphism. No differences were observed with PON-1 L55M, and PON-2 and PON-3 polymorphisms. Multivariate regression analysis showed that transferrin and ferritin concentrations correlated with arylesterase and paraoxonase activities. (4) Conclusions: Both transferrin and ferritin were the main predictors of decreased arylesterase and paraoxonase activities in patients with sickle cell disease. LDL oxidation increased, and RR PON-1 Q192R polymorphism is likely to be a protective factor against oxidative damage in these patients.
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Affiliation(s)
- Cadiele Oliana Reichert
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil
| | - Carolina Garcia de Macedo
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil
| | - Débora Levy
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil
| | - Bruno Carnevale Sini
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil
| | - Andréia Moreira Monteiro
- Department of Immunology, Institute of Biomedical Sciences, Universidade de Sao Paulo, 05508-000 Sao Paulo, Brazil
| | - Magnus Gidlund
- Department of Immunology, Institute of Biomedical Sciences, Universidade de Sao Paulo, 05508-000 Sao Paulo, Brazil
| | - Luciana Morganti Ferreira Maselli
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil
| | | | - Sérgio Paulo Bydlowski
- Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, 05403-900 Sao Paulo, Brazil.
- Center of Innovation and Translational Medicine (CIMTRA), Department of Medicine, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, 05360-130 Sao Paulo, Brazil.
- Instituto Nacional de Ciencia e Tecnologia em Medicina Regenerativa (INCT-Regenera), CNPq, 21941-902 Rio de Janeiro, Brazil.
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Levy D, Reichert CO, Bydlowski SP. Paraoxonases Activities and Polymorphisms in Elderly and Old-Age Diseases: An Overview. Antioxidants (Basel) 2019; 8:antiox8050118. [PMID: 31052559 PMCID: PMC6562914 DOI: 10.3390/antiox8050118] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/16/2019] [Accepted: 04/19/2019] [Indexed: 12/14/2022] Open
Abstract
Aging is defined as the accumulation of progressive organ dysfunction. There is much evidence linking the involvement of oxidative stress in the pathogenesis of aging. With increasing age, susceptibility to the development of diseases related to lipid peroxidation and tissue injury increases, due to chronic inflammatory processes, and production of reactive oxygen species (ROS) and free radicals. The paraoxonase (PON) gene family is composed of three members (PON1, PON2, PON3) that share considerable structural homology and are located adjacently on chromosome 7 in humans. The most studied member product is PON1, a protein associated with high-density lipoprotein with paraoxonase/esterase activity. Nevertheless, all the three proteins prevent oxidative stress. The major aim of this review is to highlight the importance of the role of PON enzymes in the aging process, and in the development of the main diseases present in the elderly: cardiovascular disease, diabetes mellitus, neurodegenerative diseases, and cancer.
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Affiliation(s)
- Débora Levy
- Genetic and Molecular Hematology Laboratory (LIM31), Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 05419-000, SP, Brazil.
| | - Cadiele Oliana Reichert
- Genetic and Molecular Hematology Laboratory (LIM31), Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 05419-000, SP, Brazil.
| | - Sérgio Paulo Bydlowski
- Genetic and Molecular Hematology Laboratory (LIM31), Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 05419-000, SP, Brazil.
- Center of Innovation and Translacional Medicine (CIMTRA), Department of Medicine, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 05419-000, SP, Brazil.
- Instituto Nacional de Ciencia e Tecnologia em Medicina Regenerativa (INCT-Regenera), CNPq, Rio de Janeiro 21941-902, RJ, Brazil.
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Golzari MH, Javanbakht MH, Ghaedi E, Mohammadi H, Djalali M. Effect of Eicosapentaenoic Acid Supplementation on Paraoxonase 2 Gene Expression in Patients with Type 2 Diabetes Mellitus: a Randomized Double-blind Clinical Trial. Clin Nutr Res 2019; 8:17-27. [PMID: 30746344 PMCID: PMC6355950 DOI: 10.7762/cnr.2019.8.1.17] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/15/2018] [Accepted: 11/20/2018] [Indexed: 12/22/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is recognized as one of the most prevalent metabolic diseases, and it is mostly associated with oxidative stress, atherosclerosis and dyslipidemia. Paraoxonase 2 (PON2) due to its antioxidant properties may play a role in the atherosclerosis development. Although long-chain omega-3 polyunsaturated fatty acids, such as eicosapentaenoic acid (EPA) have been shown to reduce the risk of cardiovascular disease, the exact mechanism of action is still unknown. Our goal in this study was to determine the effect of EPA administration on gene expression of PON2 in patients with T2DM. Present study was a randomized, controlled double-blind trial. Thirty-six patients with T2DM were randomly allocated to receive 2 g/day EPA (n = 18) or placebo (n = 18) for 8 weeks. There were no significant differences between 2 groups concerning demographic or biochemical variables, and dietary intakes as well (p > 0.05). However, patients received EPA showed a significant increase in the gene expression of PON2 compared with placebo group (p = 0.027). In addition, high-density lipoprotein cholesterol increased and fasting blood sugar decreased significantly after EPA supplementation compared with control group. Taken together, supplementation with 2 g/day EPA could be atheroprotective via the upregulation of PON2 in patients with T2DM. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03258840.
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Affiliation(s)
- Mohammad Hassan Golzari
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 14155-6446, Iran
| | - Mohammad Hassan Javanbakht
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 14155-6446, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 14155-6446, Iran
| | - Hamed Mohammadi
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Mahmoud Djalali
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran 14155-6446, Iran
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Idrees M, Siddiq AR, Ajmal M, Akram M, Khalid RR, Hussain A, Qamar R, Bokhari H. Decreased serum PON1 arylesterase activity in familial hypercholesterolemia patients with a mutated LDLR gene. Genet Mol Biol 2018; 41:570-577. [PMID: 30044465 PMCID: PMC6136370 DOI: 10.1590/1678-4685-gmb-2016-0287] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/16/2018] [Indexed: 01/17/2023] Open
Abstract
Paraoxonase 1 (PON1) is a serum enzyme associated with high density lipoprotein (HDL) regulation through its paraoxonase and arylesterase activity. PON1 inhibits the oxidation of HDL and low density lipoprotein (LDL), and is involved in the pathogenesis of a variety of diseases including atherosclerosis. Conversely, mutations in the low density lipoprotein receptor (LDLR) result in failure of receptor mediated endocytosis of LDL leading to its elevated plasma levels and onset of familial hypercholesterolemia (FH). In the current study we investigated the role of PON1 polymorphisms rs662; c.575A > G (p.Gln192Arg) and rs854560; c.163T > A (p.Leu55Met) in a large family having FH patients harboring a functional mutation in LDLR. Genotypes were revealed by RFLP, followed by confirmation through Sanger sequencing. PON1 activity was measure by spectrophotometry. Our results show significantly reduced serum paraoxonase and arylesterase activities in FH patients compared with the healthy individuals of the family (p < 0.05). PON1 QQ192 genotype showed a significantly higher association with FH (p=0.0002). PON1 Q192 isoform was associated with reduced serum paraoxonase activity by in silico analysis and PON1 R192 exhibited higher serum paraoxonase and arylesterase activity than the other polymorphs. Our results highlight that the combination of LDLR mutations and PON1 MMQQ genotypes may lead to severe cardiac events.
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Affiliation(s)
- Muhammad Idrees
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
| | | | - Muhammad Ajmal
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
| | - Muhammad Akram
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
| | | | - Alamdar Hussain
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
| | - Raheel Qamar
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
| | - Habib Bokhari
- COMSAT Institute of Information Tecnology, Islamabad, Pakistan
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Strauss E, Supinski W, Radziemski A, Oszkinis G, Pawlak AL, Gluszek J. Is hyperhomocysteinemia a causal factor for heart failure? The impact of the functional variants of MTHFR and PON1 on ischemic and non-ischemic etiology. Int J Cardiol 2016; 228:37-44. [PMID: 27863359 DOI: 10.1016/j.ijcard.2016.11.213] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 11/06/2016] [Indexed: 01/10/2023]
Abstract
BACKGROUND Hyperhomocysteinemia was found to be uniformly associated with the development of heart failure (HF) and HF mortality; however, it is uncertain whether this relation is causative or not. We used Mendelian randomization to examine the associations of the methylene tetrahydrofolate gene (MTHFR) and paraoxonase 1 gene (PON1) variants as a proxy for lifelong exposure to high Hcy and Hcy-thiolactone concentrations with the development of HF in men aged ≤60years and the occurrence of adverse effects at one-year follow-up. METHODS The study enrolled 172 men with HF: 117 with ischemic etiology (iHF) related to coronary artery disease (CAD) and 55 with non-ischemic etiology (niHF) related to dilated cardiomyopathy (DCM). The reference group of 329 CAD patients without HF and the control group of 384 men were also analyzed. RESULTS Hyperhomocysteinemia (OR=2.0, P<0.05) and the MTHFR 677TT/1298AA, 677CC/1298CC genotypes (OR=1.6, P=0.03) were associated with HF regardless of its etiology, especially among normotensives (OR=4.6, P=0.001 and OR=2.3, P=0.003, respectively). In niHF, the PON1 162AA (OR=2.3, P=0.03) and 575AG+GG (OR=0.46, P=0.01) genotypes also influenced the risk. The interaction between HDLC<1mmol/L and the PON1 575GG genotype was found to influence the risk of iHF (OR=7.2, P=0.009). Hyperhomocysteinemia improved the classification of niHF patients as 'high-risk' by 10.1%. Ejection fraction <30% and DCM increased the probability of HF death or re-hospitalization within one year. CONCLUSION Our results provide evidence that hyperhomocysteinemia is a causal factor for niHF in DCM, while dysfunctional HDL could contribute to the pathogenesis of iHF.
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Affiliation(s)
- Ewa Strauss
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479 Poznan, Poland; Department of General and Vascular Surgery, Poznan University of Medical Sciences, Dluga 1/2, 61-848 Poznan, Poland.
| | - Wieslaw Supinski
- Regional Public Hospital, Dekerta 1, 66-400 Gorzow Wielkopolski, Poland
| | - Artur Radziemski
- Department of Hypertension, Angiology and Internal Medicine, Poznan University of Medical Sciences, Dluga 1/2, 61-848 Poznan, Poland
| | - Grzegorz Oszkinis
- Department of General and Vascular Surgery, Poznan University of Medical Sciences, Dluga 1/2, 61-848 Poznan, Poland
| | - Andrzej Leon Pawlak
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479 Poznan, Poland
| | - Jerzy Gluszek
- The State Higher Vocational School in Kalisz, Nowy Swiat 4, 62-800 Kalisz, Poland
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7
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Milnerowicz H, Kowalska K, Socha E. Paraoxonase activity as a marker of exposure to xenobiotics in tobacco smoke. Int J Toxicol 2015; 34:224-32. [PMID: 25953737 DOI: 10.1177/1091581815584624] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The paraoxonase (PON) family is composed of 3 proteins (PON1, PON2, and PON3), each of which plays a crucial role in the body, displaying antioxidant, anti-inflammatory, and antiatherosclerotic properties. The activities and properties of PON proteins can be modulated by a number of environmental factors, including cigarette smoke. In the present article, a review of existing literature is employed to analyze both the direct and the indirect impact of cigarette smoking on the activity of members of the PON family. Cigarette smoking leads to direct inhibition of the hydrolytic activity of PON enzymes by modification of thiol groups, by the reactions of free radicals, or by inhibiting enzyme-active regions with heavy metals. It has been shown that cigarette smoking correlates with a decrease in high-density lipoprotein (HDL) concentration as well as with an increase in other components of the lipid profile (low-density lipoprotein (LDL), triglycerides, and total cholesterol). By decreasing HDL levels, cigarette smoking likely acts indirectly to induce a decline in PON1 activity. Inhibition of PON1 activity by smoking is a reversible process after cessation of exposure to the xenobiotics in tobacco smoke.
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Affiliation(s)
- Halina Milnerowicz
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
| | - Katarzyna Kowalska
- Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
| | - Ewelina Socha
- Students Scientific Association, Department of Biomedical and Environmental Analysis, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
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Miura G, Ariyoshi N, Sato Y, Yamaguchi H, Iwata Y, Fujimoto Y, Kobayashi Y, Ishii I. Genetic and non-genetic factors responsible for antiplatelet effects of clopidogrel in Japanese patients undergoing coronary stent implantation: an algorithm to predict on-clopidogrel platelet reactivity. Thromb Res 2014; 134:877-83. [PMID: 25175362 DOI: 10.1016/j.thromres.2014.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 07/10/2014] [Accepted: 07/13/2014] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Antiplatelet effects of clopidogrel appear to be affected by various factors including genetic polymorphism. So far, there has been little information about the response of clopidogrel in Asians, whose prevalence of a CYP2C19 loss-of-function (LOF) allele is high. METHODS AND RESULTS We investigated background and clinical factors affecting on-clopidogrel platelet reactivity in Japanese patients undergoing coronary stent implantation (n=114). In univariate analysis, antiplatelet effects of clopidogrel in a steady state were associated with not only CYP2C19 genotypes but also several factors including dyslipidemia. In addition, we developed an algorithm that can estimate P2Y12 Reaction Units (PRU) in a steady state by multiple regression analysis and evaluated the adequacy of the algorithm by the Akaike Information Criterion. CONCLUSIONS We revealed several factors influencing on-clopidogrel platelet reactivity in Japanese patients. We also succeeded in developing an algorithm that estimates PRU in a steady state, although it is uncertain whether the algorithm can be applied to other populations.
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Affiliation(s)
- Go Miura
- Department of Clinical Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan; Division of Pharmacy, University Hospital, Chiba University School of Medicine, Chiba, Japan
| | - Noritaka Ariyoshi
- Department of Clinical Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan; Division of Pharmacy, University Hospital, Chiba University School of Medicine, Chiba, Japan; Clinical Research Center, University Hospital, Chiba University School of Medicine, Chiba, Japan.
| | - Yasunori Sato
- Clinical Research Center, University Hospital, Chiba University School of Medicine, Chiba, Japan
| | - Hiroki Yamaguchi
- Division of Pharmacy, University Hospital, Chiba University School of Medicine, Chiba, Japan
| | - Yo Iwata
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshihide Fujimoto
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Itsuko Ishii
- Department of Clinical Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan; Division of Pharmacy, University Hospital, Chiba University School of Medicine, Chiba, Japan
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Fekih O, Triki S, Hellara I, Neffati F, Rejeb J, Ommezzine A, Chouchane S, Guediche MN, Bouslama A, Najjar MF. Can paraoxonase 1 polymorphisms (L55 M and Q192 R) protect children with type 1 diabetes against lipid abnormalities? J Clin Lipidol 2014; 8:249-55. [PMID: 24793345 DOI: 10.1016/j.jacl.2014.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 02/26/2014] [Accepted: 03/04/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Only a few studies have focused on the possible modulatory role of paraoxonase 1 (PON1) polymorphisms in lipid profiles, especially in children and in adolescents with type 1 diabetes (T1D). OBJECTIVE We propose to study the association between PON1 polymorphisms (PON1-55 and PON1-192) and a lipid profile in a young Tunisian population with T1D. METHODS The study compared 122 children and adolescents with T1D with 97 controls. Genomic DNA was collected from 116 patients and 91 controls. Lipid parameters were determined by automated methods. PON1 activity was measured by a spectrophotometric method and genotyping of the PON1 gene was assessed by multiplex polymerase chain reaction followed by restriction fragment-length polymorphism. RESULTS A significant increase in total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol (LDL-C), apolipoprotein B (ApoB), and lipoprotein (a) (Lp(a)) and a significant decrease in apolipoprotein A1 (ApoA1), ApoA1/ApoB ratio, and PON1 activity/HDL-C ratio were observed in children with T1D compared with controls. In the LLQR haplotype, the group with diabetes showed significantly higher values of total cholesterol, LDL-C, apoB, Lp(a), and apoA1/apoB ratio compared with the control group. Those with diabetes with the LLQQ haplotype showed a significant decrease in LDL-C and Lp(a) compared with controls (P < .0001). CONCLUSION PON1 polymorphisms (PON1-55 and PON1-192) seem to be involved in the altering the lipid profile in T1D. The LLQR haplotype provided an atherogenic lipid profile in children with T1D compared with controls. LLQQ haplotype seemed to have a protective effect against the increase in LDL-C and Lp(a) that are heavily involved in the development of cardiovascular diseases.
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Affiliation(s)
- Ons Fekih
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir 5000, Tunisia.
| | - Sonia Triki
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir 5000, Tunisia
| | - Ilhem Hellara
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir 5000, Tunisia
| | - Fadoua Neffati
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir 5000, Tunisia
| | - Jihen Rejeb
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Asma Ommezzine
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | | | | | - Ali Bouslama
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Monastir University Hospital, Monastir 5000, Tunisia
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10
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Blanco-Muñoz J, Aguilar-Garduño C, Gamboa-Avila R, Rodríguez-Barranco M, Pérez-Méndez O, Huesca-Gómez C, González-Alzaga B, Lacasaña M. Association between PON1 genetic polymorphisms and miscarriage in Mexican women exposed to pesticides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 449:302-308. [PMID: 23435062 DOI: 10.1016/j.scitotenv.2013.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/07/2013] [Accepted: 01/08/2013] [Indexed: 06/01/2023]
Abstract
BACKGROUND Placental oxidative stress has been involved in the pathogenesis of certain reproductive adverse effects, including miscarriage. Paraxonase 1 (PON1) is a high-density lipoprotein(HDL)-linked enzyme that prevents oxidation of low-density lipoproteins (LDL) and is involved in detoxification from organophosphate pesticides. OBJECTIVE To assess the association between maternal PON1 polymorphisms (PON1192Q/R, PON155 L/M y PON1-108C/T) and the risk of miscarriage in women chronically exposed to organophosphate pesticides in Mexico. METHODS In a cross-sectional study, socio-demographic data, reproductive history data, environmental exposures, and other variables of concern were collected by means of a questionnaire from 264 women (floriculturists and wives of floriculturists) who had been pregnant sometime during the 10 years preceding the study. Blood samples were also collected from them. PON1192 and PON155 genotypes were determined by PCR amplification, and PON1-108 genotypes, by a TaqMan real-time polymerase chain reaction assay. Complete information regarding the results of pregnancy and maternal genotype tests was obtained for 514 pregnancies (35 miscarriages and 479 controls). The association between PON1 genotypes and miscarriage was evaluate through GEE models. RESULTS The risk of miscarriage by mothers with PON1192RR genotype was 2.2 higher than by mothers with PON1192QR/PON1192QQ genotype (95% CI 0.93-5.17). The risk was close to 4 times higher in mothers with PON155MM/PON155LM genotype than in mothers with PON155LL genotype (OR=3.9; 95% CI 1.38-11.0). No significant differences were found in risk of miscarriage based on the maternal PON1-108C/T genotype. No evidence was found of an interaction between the various PON1 genotypes and the mothers' floricultural activity during pregnancy. CONCLUSIONS This study suggests that there is an effect of genetic maternal PON1 polymorphisms on miscarriage and provides additional evidence that combines with the growing information about the ways in which certain PON1 genotypes can affect the development of the fetus in utero.
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Affiliation(s)
- Julia Blanco-Muñoz
- Instituto Nacional de Salud Pública de México (INSP) (National Institute of Public Health of México), Av, Universidad 655, Col. Sta María Ahuacatitlán, CP 62100, Cuernavaca, Morelos, México.
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Rejeb J, Omezzine A, Rebhi L, Boumaiza I, Mabrouk H, Rhif H, Rejeb NB, Nabli N, Douki W, Abdelaziz AB, Boughzala E, Bouslama A. Association of PON1 and PON2 polymorphisms with PON1 activity and significant coronary stenosis in a Tunisian population. Biochem Genet 2012; 51:76-91. [PMID: 23053877 DOI: 10.1007/s10528-012-9544-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 06/20/2012] [Indexed: 12/31/2022]
Abstract
PON1 and PON2 have attracted considerable attention as candidate genes for coronary heart disease because their enzymes function as key factors in lipoprotein catabolism pathways. We studied the distribution of PON1 and PON2 polymorphisms, including genotyping, lipid profile, and PON1 activity, and their association with PON1 activity and significant coronary stenosis (SCS) in a Tunisian population. PON1 activity was lower in patients with SCS than in controls. It increased with the R allele (QQ < QR < RR) in PON1-192 genotypes and with the L allele (MM < ML < LL) in PON1-55 genotypes. In the presence of metabolic syndrome and diabetes, PON1-192RR and PON2-311CC were associated with an increased risk of SCS and PON1-55MM seems to have lower risk. This association was evident among nonsmokers for PON1-55MM and among smokers for PON1-192RR and PON2-311CC. The GTGC haplotype seemed to increase the risk of SCS compared with the wild haplotype in a Tunisian population.
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Affiliation(s)
- Jihène Rejeb
- Department of Biochemistry, UR MSP 28/04, Sahloul University Hospital, 4054, Sousse, Tunisia
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12
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Ellison CA, Crane AL, Bonner MR, Knaak JB, Browne RW, Lein PJ, Olson JR. PON1 status does not influence cholinesterase activity in Egyptian agricultural workers exposed to chlorpyrifos. Toxicol Appl Pharmacol 2012; 265:308-15. [PMID: 22975224 DOI: 10.1016/j.taap.2012.08.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2012] [Revised: 08/28/2012] [Accepted: 08/29/2012] [Indexed: 11/25/2022]
Abstract
Animal studies have shown that paraoxonase 1 (PON1) genotype can influence susceptibility to the organophosphorus pesticide chlorpyrifos (CPF). However, Monte Carlo analysis suggests that PON1 genotype may not affect CPF-related toxicity at low exposure conditions in humans. The current study sought to determine the influence of PON1 genotype on the activity of blood cholinesterase as well as the effect of CPF exposure on serum PON1 in workers occupationally exposed to CPF. Saliva, blood and urine were collected from agricultural workers (n=120) from Egypt's Menoufia Governorate to determine PON1 genotype, blood cholinesterase activity, serum PON1 activity towards chlorpyrifos-oxon (CPOase) and paraoxon (POase), and urinary levels of the CPF metabolite 3,5,6-trichloro-2-pyridinol (TCPy). The PON1 55 (P≤0.05) but not the PON1 192 genotype had a significant effect on CPOase activity. However, both the PON1 55 (P≤0.05) and PON1 192 (P≤0.001) genotypes had a significant effect on POase activity. Workers had significantly inhibited AChE and BuChE after CPF application; however, neither CPOase activity nor POase activity was associated with ChE depression when adjusted for CPF exposure (as determined by urinary TCPy levels) and stratified by PON1 genotype. CPOase and POase activity were also generally unaffected by CPF exposure although there were alterations in activity within specific genotype groups. Together, these results suggest that workers retained the capacity to detoxify chlorpyrifos-oxon under the exposure conditions experienced by this study population regardless of PON1 genotype and activity and that effects of CPF exposure on PON1 activity are minimal.
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Affiliation(s)
- Corie A Ellison
- Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14214, USA
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13
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Ezzaher A, Mouhamed DH, Mechri A, Neffati F, Rejeb J, Omezzine A, Douki W, Bouslama A, Gaha L, Najjar MF. Association between bipolar I disorder and the L55M and Q192R polymorphisms of the paraoxonase 1 (PON1) gene. J Affect Disord 2012; 139:12-7. [PMID: 21783258 DOI: 10.1016/j.jad.2011.06.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 06/17/2011] [Accepted: 06/23/2011] [Indexed: 11/25/2022]
Abstract
BACKGROUND The purpose of this work was to study the association between the PON1 L55M and Q192R polymorphisms and bipolar I disorder in Tunisian patients and to explore their relation to the sociodemographic, clinical and therapeutic characteristics of this disease. PATIENTS AND METHODS Our study included 109 patients with bipolar I disorder and 110 controls aged 39.4±11.8 and 37.3±9.2 years, respectively. L55M and Q192R of the PON1 gene polymorphisms were determined by multiplex polymerase chain reaction. RESULTS Significant difference was detected in the distribution of the genotype frequencies of L55M and Q192R polymorphisms (χ²=6.32, df=2, p=0.04; χ²=10.15, df=2, p=0.006 respectively) between patients and controls. We noted significant association between bipolar I disorder and QR and RR genotypes (OR 2.06, CI 95% 1.10-3.84, p=0.02; OR 1.72, CI 95% 1.07-2.75, p=0.02 respectively) and between this disease and LM and MM genotypes (OR 2.22, CI 95% 1.19-4.15, p=0.012; OR 3.04, CI 95% 1.60-5.77, p=0.01 respectively). There were no significant differences in gender, age at onset, illness episode and treatment among all genotypes. However, Q192R polymorphism was significantly associated with age and patients with RR genotype were the youngest. CONCLUSION Bipolar I disorder was significantly associated with L55M and Q192R polymorphisms, suggesting that these polymorphisms may play a role for development of bipolar I disorder. There was no significant association between the clinical and therapeutic characteristics of this population and these polymorphisms. Further studies are required to clarify the implication of these polymorphisms in the pathophysiology of bipolar I disorder.
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Affiliation(s)
- Asma Ezzaher
- Laboratory of Biochemistry-Toxicology, Monastir University Hospital, Tunisia.
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Sánchez-Muniz FJ, Canales A, Nus M, Bastida S, Guillén M, Corella D, Olmedilla-Alonso B, Granado-Lorencio F, Benedí J. The Antioxidant Status Response to Low-Fat and Walnut Paste–Enriched Meat Differs in Volunteers at High Cardiovascular Risk Carrying Different PON-1 Polymorphisms. J Am Coll Nutr 2012. [DOI: 10.1080/07315724.2012.10720027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Haj Mouhamed D, Ezzaher A, Mechri A, Neffati F, Omezzine A, Bouslama A, Gaha L, Douki W, Najjar MF. Effect of cigarette smoking on paraoxonase 1 activity according to PON1 L55M and PON1 Q192R gene polymorphisms. Environ Health Prev Med 2011; 17:316-21. [PMID: 22205545 DOI: 10.1007/s12199-011-0256-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 11/26/2011] [Indexed: 10/14/2022] Open
Abstract
OBJECTIVE This study aims to investigate the effect of cigarette smoking on paraoxonase 1 (PON1) activity according to PON1 L55M and PON1 Q192R gene polymorphisms. MATERIALS AND METHODS Our sample included 300 voluntary subjects: 138 nonsmokers and 162 current smokers aged 38.47 ± 21.91 and 35.55 ± 16.03 years, respectively. PON1 activity was determined by kinetic methods. L55M and Q192R gene polymorphisms of PON1 were determined by multiplex polymerase chain reaction (PCR) restriction fragment length polymorphism (RFLP). RESULTS We found in smokers a significant decrease of PON1 activity before and after adjustment. We noted a significant association between smoking status and lower PON1 activity [odds ratio (OR) = 3.03, confidence interval 95% = 1.5-5.9, p = 0.001]. In smokers, there was significant association between PON1 activity and PON1 L55M polymorphisms (p = 0.01). Also, the 55MM genotype presented the lowest paraoxonase activity, while the 55LL genotype showed the highest one. After adjustment for confounding variables, smokers with PON1 L55M polymorphism had the highest risk for lower PON1 activity; however, PON1 Q192R genotype might protect smokers from decrease in PON1 activity. We found significant interaction between the effect of cigarette smoking and both PON1 L55M and PON1 Q192R polymorphisms on lower PON1 activity. CONCLUSIONS Cigarette smoking was significantly associated with decrease in PON1 activity. Moreover, PON1 L55M polymorphism predisposes smokers to decreased PON1 activity in contrast to PON1 Q192R genotype.
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Affiliation(s)
- Dhouha Haj Mouhamed
- Laboratory of Biochemistry-Toxicology, Monastir University Hospital, 5000 Monastir, Tunisia.
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Association between male infertility and genetic variability at the PON1/2 and GSTM1/T1 gene loci. Reprod Biomed Online 2011; 23:105-10. [DOI: 10.1016/j.rbmo.2011.03.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 02/17/2011] [Accepted: 03/17/2011] [Indexed: 11/23/2022]
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Canales A, Sánchez-Muniz FJ, Bastida S, Librelotto J, Nus M, Corella D, Guillen M, Benedi J. Effect of walnut-enriched meat on the relationship between VCAM, ICAM, and LTB4 levels and PON-1 activity in ApoA4 360 and PON-1 allele carriers at increased cardiovascular risk. Eur J Clin Nutr 2011; 65:703-10. [PMID: 21407247 DOI: 10.1038/ejcn.2011.20] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND/OBJECTIVE Cardiovascular risk depends largely on paraoxonase (PON-1) and apolipoprotein A4 (APOA4) gene polymorphisms. To compare the effects of consumption of walnut-enriched meat versus low-fat meat (LM) on selected soluble adhesion molecules and leukotrienes (LTB4). SUBJECTS/METHODS In all 22 subjects at increased cardiovascular risk were taken. It is a non-blinded, cross-over, placebo-controlled study. Two 5-week experimental periods separated by 4-6 week wash-out interval. Participants consumed walnut-enriched meat during one period and LM during the other. Diet characteristics, HDLc, Apo A1, paraoxonase, sVCAM-1, sICAM-1 and LTB4 were analysed. PON-1 55, PON-1 192 and APOA4 360 polymorphism effects were also assessed. RESULTS Individuals consuming walnut-enriched meat displayed higher paraoxonase activity (P<0.001), lower levels of sICAM and aVCAM (P=0.046, P=0.012, respectively) and leukotriene B4 (P=0.044), and lower paraoxonase-1/HDLc and paraoxonase-1/Apo A1 ratios (both, P<0.001) than those consuming LM. Paraoxonase levels correlated negatively with those of sICAM (r=-0.471, P<0.01). Significant decreases (at least P<0.05) were observed in sICAM concentrations in PON-1 55LM+MM, PON-1 QQ192 and APOA4-2 carriers while decreases in sVCAM in QR+RR and APOA4-1 carriers were observed. Paraoxonase-1/HDLc and paraoxonase-1/Apo A1 ratios were significantly influenced by paraoxonase polymorphisms. CONCLUSIONS Walnut-enriched meat appears as a functional meat as consumed in the framework of a mix diet lowered the concentration of some selected inflammatory chemoattractant biomarkers. This effect was largely influenced by PON-1 and Apo A4-360 polymorphisms.
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Affiliation(s)
- A Canales
- Departamento de Nutrición y Bromatología I, Facultad de Farmacia, Universidad Complutense de Madrid, Spain
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PON1 55 and 192 Gene Polymorphisms in Type 2 Diabetes Mellitus Patients in a Turkish Population. Biochem Genet 2010; 49:1-8. [DOI: 10.1007/s10528-010-9376-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 06/29/2010] [Indexed: 10/19/2022]
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Moreno-Banda G, Blanco-Muñoz J, Lacasaña M, Rothenberg SJ, Aguilar-Garduño C, Gamboa R, Pérez-Méndez O. Maternal exposure to floricultural work during pregnancy, PON1 Q192R polymorphisms and the risk of low birth weight. THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:5478-5485. [PMID: 19646734 DOI: 10.1016/j.scitotenv.2009.06.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Revised: 06/18/2009] [Accepted: 06/23/2009] [Indexed: 05/28/2023]
Abstract
BACKGROUND Although there is evidence from animal studies of impaired reproductive function by exposure to organophosphates (OP), the effects on birth weight have not been sufficiently evaluated in epidemiological studies. Paraoxonase (PON1) detoxifies organophosphates by cleavage of active oxons. Some PON1 gene polymorphisms could reduce the enzyme activity and increase susceptibility to OP toxicity. OBJECTIVE To assess the association between maternal exposure to floriculture during pregnancy and the risk of low birth weight (<2500 g) in their offspring, as well as to evaluate the interaction between this exposure and maternal genotype for PON1 Q192R polymorphisms. MATERIALS AND METHODS A cross sectional study was carried out in two Mexican states (States of Mexico and Morelos) with high frequencies of greenhouse activity. We interviewed and collected blood samples from 264 females (floriculturists or partners of floricultural workers) who became pregnant during the 10 years prior to the interview. The questionnaire measured socioeconomic characteristics, tobacco and alcohol consumption, diseases and occupational and reproductive history. We also applied a food frequency questionnaire. Information was obtained pertaining to 467 pregnancies. DNA was extracted from white cells, and PON1 genotype was determined by Restriction Fragment Length Polymorphism for Q192R polymorphisms. Results were analyzed with generalized estimating equations models. RESULTS After adjusting for potential confounders, we detected a statistically significant interaction between maternal exposure to flower growing work during pregnancy and PON1 Q192R polymorphisms on risk of low birth weight. The risk of having a baby with LBW is nearly six times higher if a mother is a floriculture worker during pregnancy and has PON1 192RR genotype (OR 5.93, 95% CI 1.28, 27.5). CONCLUSION These results suggest that the interaction between maternal floriculture work during pregnancy and 192RR PON1 genotype increases the probability of having children with LBW.
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Affiliation(s)
- G Moreno-Banda
- Population Health Research Center, National Institute of Public Health, Avenida Universidad 655, Colonia Santa María Ahuacatitlán, 62508 Cuernavaca, Morelos, Mexico
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20
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Relationship between human paraoxonase-1 activity and PON1 polymorphisms in Mexican workers exposed to organophosphate pesticides. Toxicol Lett 2009; 188:84-90. [DOI: 10.1016/j.toxlet.2009.03.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 03/09/2009] [Accepted: 03/10/2009] [Indexed: 11/18/2022]
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21
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Koubaa N, Nakbi A, Hammami S, Attia N, Mehri S, Ben Hamda K, Ben Farhat M, Miled A, Hammami M. Association of homocysteine thiolactonase activity and PON1 polymorphisms with the severity of acute coronary syndrome. Clin Biochem 2009; 42:771-6. [PMID: 19269283 DOI: 10.1016/j.clinbiochem.2009.02.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Revised: 02/12/2009] [Accepted: 02/15/2009] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Excess of total homocysteine (tHcy) and decrease of thiolactonase activities (HTase) have been proposed as risk factors for coronary artery diseases (CAD). OBJECTIVES We evaluated the relationship of tHcy and HTase with paraoxonase 1 (PON1) gene polymorphism according to CAD severity. DESIGN AND METHODS 118 healthy volunteers and 91 CAD patients were compared. RESULTS Serum levels of tHcy and oxidized LDL (ox-LDL) increased significantly by 26% and 48% in CAD patients and were associated with significantly lower levels of HDL cholesterol (p=0.02) and 42% of decrease in HTase activities (p<0.05). In these patients the HTase activity was negatively associated with tHcy and Hs CRP levels (r=-0.622, p=0.00 and r=-0.355, p=0.007 respectively) but positively associated with apoB and triglyceride levels (r=0.35, p=0.042 and r=0.308, p=0.003 respectively). HTase activity decreased inversely to the number of affected vessels and according to PON1 polymorphism. PON1 Q192R RR and PON1 L55M MM genotypes were associated with higher HTase activities. Only PON1 L55M (MM) genotype frequency was significantly higher in CAD patients than in controls (P<0.05), while its frequency was similar between the two subgroups according to CAD severity. In a multivariate analysis, tHcy levels were the only independent factor affecting the severity of cardiovascular disease (p=0.029). CONCLUSIONS High tHcy levels are associated with the severity of cardiovascular disease and may be partly explained by the diminished HTase activities in these patients.
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Affiliation(s)
- Nadia Koubaa
- Faculty of Medicine, Laboratory of Biochemistry, UR Human Nutrition and Metabolic Disorders, Avicene st 5019 Monastir, Tunisia
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Hadjigeorgiou GM, Malizos K, Dardiotis E, Aggelakis K, Dardioti M, Zibis A, Dimitroulias A, Scarmeas N, Tsezou A, Karantanas A. Paraoxonase 1 gene polymorphisms in patients with osteonecrosis of the femoral head with and without cerebral white matter lesions. J Orthop Res 2007; 25:1087-93. [PMID: 17469180 DOI: 10.1002/jor.20393] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cerebral white matter lesions (WML) are present in more than 50% of patients with osteonecrosis of the femoral head (ONFH). Paraoxonase 1 (PON1) gene product is a detoxifying and pesticide metabolizing enzyme. Genetic variants of the PON1 gene have been found to influence the occurrence and progression of WML. We examined whether two PON1 polymorphisms (M55L and R192Q) are associated with ONFH and influence the occurrence of WML. We studied 104 patients with ONFH and 113 healthy age- and sex-matched subjects. We used logistic regression models to examine associations and survival analyses (Cox proportional hazards models) to examine possible influence of alleles on age at onset of ONFH. We found no association of PON1 M55L alleles and genotypes with ONFH. The distribution of PON1 Q192R alleles (p = 0.001) and genotypes (QQ vs. QR/RR) (p = 0.004) were statistically different between controls and patients. Patients with QQ genotype had six times higher risk for WML at brain MRI (adjusted OR 5.95; 95% CI 1.30-27.03; p = 0.02). In Cox models, there was a significant association of allele Q with risk for ONFH indicating a possible dose effect (HR = 1.43; 95%CI = 1.04-1.97; p for trend = 0.03). We conclude that individuals with PON1 192QQ genotype may have increased risk for ONFH and WMLeOn.
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Affiliation(s)
- Georgios M Hadjigeorgiou
- Neurogenetics Unit, Department of Neurology, School of Medicine, University of Thessaly, Larissa 41222, Greece.
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Nus M, Frances F, Librelotto J, Canales A, Corella D, Sánchez-Montero JM, Sánchez-Muniz FJ. Arylesterase activity and antioxidant status depend on PON1-Q192R and PON1-L55M polymorphisms in subjects with increased risk of cardiovascular disease consuming walnut-enriched meat. J Nutr 2007; 137:1783-8. [PMID: 17585031 DOI: 10.1093/jn/137.7.1783] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human paraoxonase (PON1) exists in 2 major polymorphic forms and has been shown to protect LDL and HDL against oxidation. The aim of this study was to assess the differences between subjects at increased risk of cardiovascular disease (CVD), taking into account the effects of PON1-Q192R and PON1-L55M polymorphisms on 1) basal serum arylesterase activity, lipid peroxidation (LPO), and LDL-cholesterol (LDL-C), HDL-C, total cholesterol (TC), and oxidized-LDL (ox-LDL) concentrations; 2) the relations between arylesterase activity and lipid variables; and 3) the effect of walnut-enriched meat (WM) consumption on arylesterase activity and lipid variables. Twenty-three Caucasians at increased risk of CVD were randomly assigned to diet order groups in a crossover, nonblinded, placebo-controlled trial, consisting of two 5-wk experimental periods [WM and control meat (CM)]. Significant PON1-L55M x PON1-Q192R interactions affected basal serum HDL-C (P = 0.019), LDL-C (P = 0.028) and TC (P = 0.022) and tended to affect arylesterase activity (P = 0.083). Basal arylesterase activity was positively correlated with basal HDL-C (r = 0.53; P < 0.05) and TC (r = 0.43; P < 0.05) and negatively correlated with LPO (r = -0.70; P < 0.01) and the ox-LDL:LDL ratio (r = -0.63; P < 0.01). WM decreased arylesterase activity in PON1-55M carriers (P = 0.012) but not in PON1-L55 individuals, and decreased LPO concentrations in PON1-192R carriers (P = 0.031) but not in PON1-Q192 subjects. To conclude, serum TC, HDL-C, and LDL-C concentrations and arylesterase activity depend on the interaction of PON1-L55M and PON1-Q192R polymorphisms. However, the PON1-Q192R polymorphism is more closely related to antioxidant status. Both polymorphisms modulate the effect of WM consumption on CVD biomarkers.
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Affiliation(s)
- Meritxell Nus
- Departamento de Nutrición y Bromatología I (Nutrición), Facultad de Farmacia, Universidad Complutense de Madrid, Madrid E-28040, Spain
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Rios DLS, D'Onofrio LO, Cerqueira CCS, Bonfim-Silva R, Carvalho HG, Santos-Filho A, Galvão-Castro B. Paraoxonase 1 gene polymorphisms in angiographically assessed coronary artery disease: evidence for gender interaction among Brazilians. ACTA ACUST UNITED AC 2007; 45:874-8. [PMID: 17617030 DOI: 10.1515/cclm.2007.136] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractClin Chem Lab Med 2007;45:874–8.
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Affiliation(s)
- Domingos L S Rios
- Laboratório de Genética Molecular, Universidade Estadual do Sudoeste da Bahia (UESB), Jequié, BA, Brazil.
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25
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Gamboa R, Zamora J, Rodríguez-Pérez JM, Fragoso JM, Cardoso G, Posadas-Romero C, Vargas-Alarcón G. Distribution of paraoxonase PON1 gene polymorphisms in Mexican populations. Its role in the lipid profile. Exp Mol Pathol 2006; 80:85-90. [PMID: 15993880 DOI: 10.1016/j.yexmp.2005.05.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2005] [Accepted: 05/31/2005] [Indexed: 11/25/2022]
Abstract
Paraoxonase gene polymorphisms (PON1-55 and PON1-192) were determined in four Mexican populations (Mestizos, Nahuas, Teenek and Mayos) belonging to different ethnic groups. The role of these polymorphisms in the lipid profile in the Mestizo group was also analyzed. PON1 polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism. Comparison among Mexican populations showed increased frequencies of PON1-55 L allele and LL genotype and decreased frequencies of M allele and LM genotype in the three Amerindian populations when compared to Mestizos (P < 0.05). Mexicans together with Asian populations (from Japan and China) presented the highest frequencies of PON1-55 L allele (P < 0.05 when compared to Caucasian populations). Heterogeneous data were noted when PON1-192 polymorphism comparison was made. In summary, distribution frequencies of PON1 showed that Mexican populations are more related to Asians than Caucasians. This confirms previous studies with other genetic markers indicating that Native Americans have stronger genetic affinities to the Paleolithic people of North-East Asia than to other major world populations. In Mexican Mestizos, lack of correlation between PON1 polymorphisms and lipid profile was found, corroborating previous data in other populations. The present data could be helpful to understand the distribution of these polymorphisms and its role as genetic and evolutive markers in the Amerindian populations.
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Affiliation(s)
- Ricardo Gamboa
- Department of Physiology and Grupo de Estudio en Genómica y Proteómica de Enfermedades Cardiovasculares, Instituto Nacional de Cardiología Ignacio Chávez Juan Badiano No. 1, Tlalpan 14080, México City, México
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Zhang Y, Zheng F, Du H, Krepinsky JC, Segbo JAG, Zhou X. Detecting the polymorphisms of paraoxonase (PON) cluster in Chinese Han population based on a rapid method. Clin Chim Acta 2005; 365:98-103. [PMID: 16185677 DOI: 10.1016/j.cca.2005.07.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2005] [Revised: 07/28/2005] [Accepted: 07/29/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND An increased risk of coronary heart disease has been shown to be associated with polymorphisms in PON1 gene in different populations. Polymorphisms in PON2 gene have been associated with the level of plasma lipoproteins and glucose and are thought to play a role in atherosclerosis. METHODS To detect PONs polymorphisms more rapidly and reliably, we modified and improved the method established by Motti et al. We redesigned the primer for amplifying the common polymorphism at position 311 of PON2, which produced more reliable and efficient amplification. RESULTS A second common polymorphism at codon 148 was also detected by our new method, as were the 2 polymorphisms in the PON1 gene. The new method allowed identification of 4 polymorphisms (PON1-192, PON1-55, PON2-148 and PON2-311) simultaneously. The PONs genotypes of 82 healthy persons were identified by this method. The allelic frequencies were: PON1-192: Q 46.3%, R 53.7%; PON1-55: L 95.1%, M 4.9%; PON2-148: A 85.4%, G 14.6%; PON2-311: S 77.4%, and C 22.6%, respectively. CONCLUSION This method represents a simple, economical and time-saving technique to simultaneously detect 4 polymorphisms in the PON cluster. It provides a useful application to enable further study of the relationship between PON1 and PON2 and their role in atherosclerosis.
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Affiliation(s)
- Ying Zhang
- Center for Gene Diagnosis, Zhongnan Hospital, Wuhan University, Wuhan 430071, P.R. China
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Togawa T, Mukai Y, Ohata K, Suzuki T, Tanabe S. Measurement of homocysteine thiolactone hydrolase activity using high-performance liquid chromatography with fluorescence detection and polymorphisms of paraoxonase in normal human serum. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 819:67-72. [PMID: 15797522 DOI: 10.1016/j.jchromb.2005.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2004] [Accepted: 01/24/2005] [Indexed: 10/25/2022]
Abstract
We developed a non-radioactive and sensitive assay method for measurement of the HTL hydrolase (HTLase) activity in biological samples, using OPA as a fluorescent post-labeling agent, l-homocysteine thiolactone (L-HTL) as the substrate, and HPLC to achieve rapid and selective separation of the substrate and product. The method was applied to measure the activity of HTLase in human, rabbit, rat and mouse serum samples. In addition, the correlation between the serum HTLase activity and PON1 polymorphisms in Japanese subjects was also investigated. The serum HTLase activity in humans, as determined by measurement of the enzyme activity in 22 subjects, was found to be in the range of 0.89-2.06 nmol/min mg protein, with a mean activity of 1.44 nmol/min mg protein.
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Affiliation(s)
- Tadayasu Togawa
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose-Shi, Tokyo 204-8588, Japan.
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Santos NPCD, Ribeiro-dos-Santos ÂKC, Santos SEB. Frequency of the Q192R and L55M polymorphisms of the human serum paraoxonase gene (PON1) in ten Amazonian Amerindian tribes. Genet Mol Biol 2005. [DOI: 10.1590/s1415-47572005000100006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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