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Otocka-Kmiecik A. Effect of Carotenoids on Paraoxonase-1 Activity and Gene Expression. Nutrients 2022; 14:nu14142842. [PMID: 35889799 PMCID: PMC9318174 DOI: 10.3390/nu14142842] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 12/27/2022] Open
Abstract
Paraoxonase 1 (PON1) is an antioxidant enzyme attached to HDL with an anti-atherogenic potential. It protects LDL and HDL from lipid peroxidation. The enzyme is sensitive to various modulating factors, such as genetic polymorphisms as well as pharmacological, dietary (including carotenoids), and lifestyle interventions. Carotenoids are nutritional pigments with antioxidant activity. The aim of this review was to gather evidence on their effect on the modulation of PON1 activity and gene expression. Carotenoids administered as naturally occurring nutritional mixtures may present a synergistic beneficial effect on PON1 status. The effect of carotenoids on the enzyme depends on age, ethnicity, gender, diet, and PON1 genetic variation. Carotenoids, especially astaxanthin, β-carotene, and lycopene, increase PON1 activity. This effect may be explained by their ability to quench singlet oxygen and scavenge free radicals. β-carotene and lycopene were additionally shown to upregulate PON1 gene expression. The putative mechanisms of such regulation involve PON1 CpG-rich region methylation, Ca(2+)/calmodulin-dependent kinase II (CaMKKII) pathway induction, and upregulation via steroid regulatory element-binding protein-2 (SREBP-2). More detailed and extensive research on the mechanisms of PON1 modulation by carotenoids may lead to the development of new targeted therapies for cardiovascular diseases.
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Affiliation(s)
- Aneta Otocka-Kmiecik
- Department of Experimental Physiology, Medical University of Lodz, 6/8 Mazowiecka St., 92-215 Lodz, Poland
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2
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Haley RW, Dever JA, Teiber JF. Response to "Comment on 'Evaluation of a Gene-Environment Interaction of PON1 and Low-Level Nerve Agent Exposure with Gulf War Illness: A Prevalence Case-Control Study Drawn from the U.S. Military Health Survey's National Population Sample'". ENVIRONMENTAL HEALTH PERSPECTIVES 2022; 130:68004. [PMID: 35703989 PMCID: PMC9199866 DOI: 10.1289/ehp11607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Robert W. Haley
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Jill A. Dever
- RTI International, Research Triangle Park, North Carolina, USA
| | - John F. Teiber
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
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3
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Ochoa-Martínez ÁC, Araiza-Gamboa Y, Varela-Silva JA, Orta-García ST, Carrizales-Yáñez L, Pérez-Maldonado IN. Effect of gene-environment interaction (arsenic exposure - PON1 Q192R polymorphism) on cardiovascular disease biomarkers in Mexican population. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 81:103519. [PMID: 33164855 DOI: 10.1016/j.etap.2020.103519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/13/2020] [Accepted: 10/17/2020] [Indexed: 06/11/2023]
Abstract
Cardiovascular diseases (CVDs) are the primary cause of death worldwide. However, little is known about how the interaction between risk factors affects CVDs. Therefore, the aim of this study was to evaluate the effect of the gene-environment interaction (arsenic exposure x PON1 Q192R polymorphism) on serum levels of CVDs biomarkers in Mexican women. Urinary arsenic levels (UAs) ranged from 5.50-145 μg/g creatinine. The allele frequency was 0.38 and 0.62 for the Q and R alleles, respectively. Moreover, significant associations (p<0.05) were detected between UAs and CVDs biomarkers (ADMA, FABP4, and miR-155). Comparable data were found when CVDs biomarkers were evaluated through PON1 genotype, significant (p<0.05) higher serum concentrations of CVDs biomarkers were identified in R allele carriers compared to levels found in Q allele carriers. Besides, a gene-environment interaction was documented. The results of this study we believe should be of significant interest to regulatory authorities worldwide.
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Affiliation(s)
- Ángeles C Ochoa-Martínez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Yesenia Araiza-Gamboa
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - José A Varela-Silva
- Facultad de Enfermería, Universidad Autónoma de Zacatecas, Zacatecas, Zacatecas, Mexico
| | - Sandra T Orta-García
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Leticia Carrizales-Yáñez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Iván N Pérez-Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.
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4
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Ochoa-Martínez ÁC, Orta-García ST, Varela-Silva JA, Pérez-Maldonado IN. Influence of Human Paraoxonase-1 Polymorphism (Q192R) on Serum Levels of Clinical Biomarkers Indicatives of Cardiovascular Diseases Risk in Mexican Women. Biochem Genet 2020; 58:801-820. [PMID: 32519276 DOI: 10.1007/s10528-020-09975-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 05/30/2020] [Indexed: 12/11/2022]
Abstract
Human paraoxonase-1 (PON1) is a hydrolytic enzyme related in the onset, establishment, and progression of inflammatory illnesses, including cardiovascular diseases (CVD). Therefore, the primary goal of this investigation was to determinate the influence of the PON1 gene polymorphism (Q192R) on prognostic biomarkers of CVD in women (n = 350) from San Luis Potosi, Mexico. For everyone enrolled, anthropometric, clinical, and biochemical measurements were acquired. Q192R polymorphism of the PON1 gene was assessed by real-time PCR using TaqMan probes. Also, quantification and/or calculation of suggested predictive CVD biomarkers were completed. The association between PON1(Q192R) polymorphism with clinical predictive CVD biomarkers was assessed using univariate and multivariate logistic regression models. Genotype PON1 (Q192R) frequencies were: 18%, 47% and 35% for QQ, QR, and RR, respectively. Besides, the frequency of the variant R allele was 0.58. Furthermore, robust significant associations were found between PON1 (Q192R) polymorphism with serum ADMA [OR (95% CI); 3.50 (1.20-5.00), p < 0.01]; FABP4 [2.50 (2.15-3.95), p < 0.01]; and miR-126 [1.50 (1.15-2.00), p < 0.01] levels after adjusting for probable confounders. Data found in this research strongly support the notion that proposes a crucial role of PON1 enzyme (Q192R polymorphism) as a genetic determinant in the CVD risk in Mexican women.
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Affiliation(s)
- Ángeles C Ochoa-Martínez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, CP 78210, San Luis Potosí, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Sandra T Orta-García
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, CP 78210, San Luis Potosí, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - José A Varela-Silva
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, CP 78210, San Luis Potosí, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
- Facultad de Enfermería, Universidad Autónoma de Zacatecas, Zacatecas, Zacatecas, Mexico
| | - Iván N Pérez-Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, CP 78210, San Luis Potosí, SLP, Mexico.
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.
- Unidad Académica Multidisciplinaria Zona Media, Universidad Autónoma de San Luis Potosí, Rio-verde, San Luis Potosí, Mexico.
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5
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Torres-Sánchez L, Gamboa R, Bassol-Mayagoitia S, Huesca-Gómez C, Nava MP, Vázquez-Potisek JI, Yáñez-Estrada L, Mejía-Saucedo R, Blanco-Muñoz J. Para-occupational exposure to pesticides, PON1 polymorphisms and hypothyroxinemia during the first half of pregnancy in women living in a Mexican floricultural area. Environ Health 2019; 18:33. [PMID: 30975138 PMCID: PMC6460535 DOI: 10.1186/s12940-019-0470-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 03/20/2019] [Indexed: 05/30/2023]
Abstract
BACKGROUND Adequate maternal thyroxine (T4) concentrations during the first half of pregnancy are fundamental to the embryo's or fetus' neural development. Organophosphate pesticides (OP) can act as thyroid disruptors and genetic polymorphisms for paraoxonase 1 (PON1), an enzyme that detoxifies OP, could be involved in individual's susceptibility to them. We assessed the association between para-occupational exposure to pesticides, including OP, during pregnancy and maternal hypothyroxinemia, as well as the potential genetic susceptibility conferred by PON1 polymorphisms. METHODS We analyzed information from 381 healthy pregnant women (< 17 gestational weeks), who lived in a floricultural region of Mexico where pesticides, including OP, are routinely used. Women who were para-occupationally exposed to pesticides were those whose partner had an occupation involving contact with these products. Thyroid-Stimulating Hormone (TSH) and free T4 concentrations were determined using ELISA, and hypothyroxinemia was defined as free T4 concentrations <0.76 ng/dL. PON1192QR, PON155LM and PON1-108CT polymorphisms were determined through Polymerase Chain Reaction (PCR). The association between para-occupational exposure and genetic polymorphisms and hypothyroxinemia was estimated using logistic regression models. RESULTS One hundred and sixty two women (42.52%) were classified as para-occupationally exposed to pesticides. Hypothyroxinemia prevalence was 54%, and it was not significantly associated with pesticide para-occupational exposure (OR: 1.21 95% CI 0.75-1.94). Independently of para-occupational exposure, the likelihood of hypothyroxinemia was higher among women who were carriers of PON155MM than in those with PON155LL genotype (OR MM vs LL: 3.03; 95%CI 1.62, 5.70). PON1192 RR (OR RR vs QQ: 1.72; 95%CI 0.93, 3.17) and PON1-108TT (OR TT vs CC: 1.60; 95%CI 0.90, 2.70) genotypes were marginally associated with hypothyroxinemia. No significant interaction was observed between pesticides para-occupational exposure and PON1 polymorphisms. CONCLUSIONS These results suggest that PON1 polymorphisms could affect thyroid function during pregnancy in women living in areas where pesticides, including OP, are routinely used. Low exposure variability in this population, could be a possible explanation for the lack of association between para-occupational exposure and thyroid function.
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Affiliation(s)
- Luisa Torres-Sánchez
- Instituto Nacional de Salud Pública, Av. Universidad 655, Col. Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos, CP Mexico
| | - Ricardo Gamboa
- Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, 14080 Mexico City, C.P Mexico
| | - Susana Bassol-Mayagoitia
- Faculty of Medicine, Universidad Autónoma de Coahuila, Morelos 900, 27000 Torreón, Coahuila, C.P Mexico
| | - Claudia Huesca-Gómez
- Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, 14080 Mexico City, C.P Mexico
| | - Martha Patricia Nava
- Faculty of Medicine, Universidad Autónoma de Coahuila, Morelos 900, 27000 Torreón, Coahuila, C.P Mexico
| | | | - Leticia Yáñez-Estrada
- Faculty of Medicine, Universidad Autónoma de San Luís Potosí, Venustiano Carranza 2405. San Luis Potosí, 78000 San Luís Potosí, C.P Mexico
| | - Rebeca Mejía-Saucedo
- Faculty of Medicine, Universidad Autónoma de San Luís Potosí, Venustiano Carranza 2405. San Luis Potosí, 78000 San Luís Potosí, C.P Mexico
| | - Julia Blanco-Muñoz
- Instituto Nacional de Salud Pública, Av. Universidad 655, Col. Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos, CP Mexico
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6
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Moreno-Godínez ME, Galarce-Sosa C, Cahua-Pablo JÁ, Rojas-García AE, Huerta-Beristain G, Alarcón-Romero LDC, Cruz M, Valladares-Salgado A, Antonio-Véjar V, Ramírez-Vargas MA, Flores-Alfaro E. Genotypes of Common Polymorphisms in the PON1 Gene Associated with Paraoxonase Activity as Cardiovascular Risk Factor. Arch Med Res 2019; 49:486-496. [PMID: 30853125 DOI: 10.1016/j.arcmed.2019.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/19/2018] [Accepted: 02/18/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Paraoxonase-1(PON1) exhibits hydrolytic activity and prevents the oxidation of high and low-density lipoproteins. Polymorphisms in the PON1 gene have been associated with variations in paraoxonase activity and with the risk of coronary artery disease (CAD). AIM OF THE STUDY This study analyzed the association between the frequencies of genotypes of the L55 M and Q192 R SNPs in the PON1 gene with the PON1 activity and with CAD risk factors. METHODS Women, determined by body composition, biochemical markers, and arylesterase (AREase) and paraoxonase (CMPase) activities were studied. Genotyping of L55 M and Q192 R polymorphisms was performed by TaqMan. Seventeen studies were used in the meta-analysis. RESULTS A significant decrease in PON1 activity in carrying the LM/MM and QQ genotypes is identified, correlations are found between the AREase activity with glucose, cholesterol and atherogenic risk index. Carriers of the LM or MM genotype were related with obesity (OR = 1.6; p = 0.039), and the MQ haplotype has an effect on the decrease in AREase (β = ‒22.4; p <0.001) and CMPase (β = ‒3.8; p <0.001). In addition, a lower proportion of Native American admixture was observed in women with LM or MM genotype, while it was higher for the European proportion compared with the LL genotype (p <0.001). CONCLUSIONS The LL-L55 M and QR-Q192 R genotypes are identified as the most frequently in the different states or cities of the country, and genotypic proportions are different, probably depending on the genetic structure of the populations. The association that is reported more frequently in the different studies is with enzymatic activity.
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Affiliation(s)
- Ma Elena Moreno-Godínez
- Laboratorio de Toxicología y Salud Ambiental, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Claudia Galarce-Sosa
- Laboratorio de Toxicología y Salud Ambiental, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México; Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - José Ángel Cahua-Pablo
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Aurora Elizabeth Rojas-García
- Laboratorio de Contaminación y Toxicología Ambiental, Secretaría de Investigación y Posgrado, Universidad Autónoma de Nayarit, Ciudad de la Cultura Amado Nervo, Tepic, Nayarit, México
| | - Gerardo Huerta-Beristain
- Laboratorio de Toxicología y Salud Ambiental, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Luz Del Carmen Alarcón-Romero
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades Bernardo Sepúlveda, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Adán Valladares-Salgado
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades Bernardo Sepúlveda, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Verónica Antonio-Véjar
- Laboratorio de Toxicología y Salud Ambiental, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Marco Antonio Ramírez-Vargas
- Laboratorio de Toxicología y Salud Ambiental, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México; Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Eugenia Flores-Alfaro
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México.
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Bizoń A, Ołdakowska M, Milnerowicz H. Changes in lipid profile parameters and PON1 status associated with L55M PON1 polymorphism, overweight and exposure to tobacco smoke. Inhal Toxicol 2018; 30:463-471. [PMID: 30618305 DOI: 10.1080/08958378.2018.1554014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/08/2018] [Accepted: 11/26/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The aim of our study was to investigate the effects of paraoxonase 1 (PON1) L55M polymorphism on the enzyme's activity and concentration in the serum as well as its association with lipid profile parameters in a group of healthy persons. We also evaluated the presence of PON1 L55M polymorphism in a group of subjects exposed to tobacco smoke and with overweight or obesity on those parameters. METHODS Analysis of L55M polymorphism was done using polymerase chain reaction (PCR) and restriction fragment length polymorphism analysis (PCR - RFLP). Serum PON1 concentration and lipid profile parameters were assayed using commercial tests. PON1 activities were measured earlier elaborated procedures. RESULTS We observed a statistically significant difference in HDL and PON1 concentration: the highest in the LL genotype and the lowest in the MM genotype with the LM genotype having an intermediate concentration. L55M polymorphism influence on PON1 arylesterase and phosphotriesterase activity, whereas PON1 lactonase activity did not differ in all polymorphic variant groups. Exposure to tobacco smoke and overweight or obesity additionally disorder above mentioned parameters. Overweight and obesity in LM and MM genotype could be associated with higher PON1 phosphotriesterase activity. It is also possible that MM genotype could be a determinant of smoking addiction. CONCLUSIONS L55M polymorphism, like exposure to tobacco smoke and overweight, disorders PON1 status and lipid profile parameters; therefore, it could be a crucial risk factor for the development of many metabolic disorders.
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Affiliation(s)
- Anna Bizoń
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy with Division of Laboratory Diagnostics , Wroclaw Medical University , Wrocław , Poland
| | - Monika Ołdakowska
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy with Division of Laboratory Diagnostics , Wroclaw Medical University , Wrocław , Poland
| | - Halina Milnerowicz
- a Department of Biomedical and Environmental Analysis, Faculty of Pharmacy with Division of Laboratory Diagnostics , Wroclaw Medical University , Wrocław , Poland
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Ramírez-Jiménez R, Martínez-Salazar MF, Almenares-López D, Yáñez-Estrada L, Monroy-Noyola A. Relationship Between Paraoxonase-1 and Butyrylcholinesterase Activities and Nutritional Status in Mexican Children. Metab Syndr Relat Disord 2018; 16:90-96. [PMID: 29393817 DOI: 10.1089/met.2017.0138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The enzymes butyrylcholinesterase (BuChE) and paraoxonase-1 (PON1) are the primary bioscavenging enzymes in serum and exhibit antioxidant and anti-inflammatory activities. PON1 has been associated with diseases caused by high oxidative stress, whereas BuChE appears to be involved in the pathophysiology of the metabolic syndrome and related disorders. It has been suggested that children from rural communities in Mexico may have a predisposition to develop obesity or type 2 diabetes during adolescence or adulthood. The objective of this study was to determine whether associations exist between the paraoxonase (PONase)/arylesterase (AREase) activity of PON1, its PON1-Q192R and PON1-L55M polymorphisms, and BuChE activity with the nutritional status and lipid profiles in a group of children from rural communities in Mexico. METHODS A group of 97 boys and girls from a rural community in Mexico were assessed for body mass index, the enzymatic activities of BuChE, PONase, and AREase were measured in serum, and their lipid profiles were determined. Genetic polymorphisms of PON1-L55M and PON1-Q192R were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS The children were classified into four groups: thinness, normal weight, overweight, and obese. Of the children studied, 34.4% were overweight and obese. The mean age of the participants was 9.5 years (standard deviation = 1.8). The L allele of the PON1-L55M genotype was the most frequent (83.3%), and the R allele of the PON1-Q192R genotype was the most frequent (61.8%). Overweight and obese children had higher values of BuChE, total cholesterol, triglycerides (TG), and lower high-density lipoprotein (HDL-C) values than children with thinness or normal weight (P = 0.028, P = 0.019, P = 0.004, P = 0.069 and P = 0.021, respectively). The levels of AREase and PONase and the prevalence of PON1-L55M and PON1-Q192R genotypes were similar between groups (P = 0.484 and P = 0.380, respectively). CONCLUSIONS This study establishes a positive association of BuChE activity with nutritional status and serum TG.
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Affiliation(s)
- Rocío Ramírez-Jiménez
- 1 Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional (CIIDIR) Unidad Michoacán, Instituto Politécnico Nacional, Michoacán, Mexico
| | | | - Damianys Almenares-López
- 3 División Ciencias Agropecuarias e Ingenierías de la Universidad Popular de la Chontalpa , Cárdenas, Tabasco, Mexico
| | - Leticia Yáñez-Estrada
- 4 Laboratorio de Género, Salud y Ambiente, Facultad de Medicina, Universidad Autónoma de San Luis Potosí , San Luis Potosí, México
| | - Antonio Monroy-Noyola
- 5 Laboratorio de Neuroprotección, Facultad de Farmacia, Universidad Autónoma del Estado de Morelos , Cuernavaca, Mexico
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9
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ArulJothi K, Suruthi Abirami B, Irusappan S, Gautami A, Swathine C, Devi A. L55M and Q192R polymorphism of Paraoxonase gene and the risk of myocardial infarction in South Indian Tamil population. Meta Gene 2018. [DOI: 10.1016/j.mgene.2017.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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10
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Association of Paraoxonase-1 Q192R (rs662) Single Nucleotide Variation with Cardiovascular Risk in Coffee Harvesters of Central Colombia. J Toxicol 2017; 2017:6913106. [PMID: 29430251 PMCID: PMC5753010 DOI: 10.1155/2017/6913106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/12/2017] [Accepted: 11/08/2017] [Indexed: 12/20/2022] Open
Abstract
Paraoxonase 1 (PON1), a high-density lipoprotein-associated antioxidant enzyme, hydrolyzes several organophosphate pesticides and oxidized lipids. The PON1 Q192R polymorphism affects the catalytic efficiency and is considered a risk factor for pesticide intoxication and cardiovascular disease (CVD) but the association is not consistent between individuals or populations. We aimed to study the association of PON1 Q192R polymorphism with CVD risk in coffee harvesters of central Colombia. Demographics were collected from 205 subjects via standardized questionnaires. Lipid profiles and serum butyrylcholinesterase (BChE) were measured by standard procedures. The calculated 10-year atherosclerotic CVD (ASCVD) risk was used as the cardiovascular risk estimate. Q192R genotype was determined by real-time PCR. Prevalence of hypertension, hypercholesterolemia, and the 10-year ASCVD risk was 33%, 62%, and 22%, respectively. BChE levels were no indicative of recent pesticide exposure, although a positive correlation was observed with BChE and hypercholesterolemia. The Q192R genotype frequencies were 38% (QQ), 44% (QR), and 18% (RR). We found an association of the 192Q genotype with hypertension. The results of this study signal the importance to evaluate the influence and potential interactions of BChE and PON1 192Q allele with known genetic and environmental factors implicated in the pathogenesis of CVD.
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Ochoa-Martínez ÁC, Ruíz-Vera T, Almendarez-Reyna CI, Orta-García ST, Pérez-Maldonado IN. Influence on serum asymmetric dimethylarginine (ADMA) concentrations of human paraoxonase 1 polymorphism (Q192R) and exposure to polycyclic aromatic hydrocarbons (PAHs) in Mexican women, a gene-environment interaction. CHEMOSPHERE 2017; 186:770-779. [PMID: 28821001 DOI: 10.1016/j.chemosphere.2017.08.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/09/2017] [Accepted: 08/11/2017] [Indexed: 06/07/2023]
Abstract
It has been demonstrated that Cardiovascular Diseases (CVD) are a consequence of the combination of genetic and environmental factors and/or the interaction between them. Therefore, the aim of this study was to evaluate the impact of polycyclic aromatic hydrocarbon (PAHs) exposure and PON1 Q192R polymorphism (genetic susceptibility) on serum asymmetric dimethylarginine (ADMA) levels in Mexican women (n = 206). Urinary 1-hydroxypyrene concentrations (1-OHP; exposure biomarker for PAHs) were quantified using a high-performance liquid chromatography technique, PON1 Q192R polymorphism was genotyped using TaqMan probes and serum ADMA concentrations were evaluated using a commercially available ELISA kit. Urinary 1-OHP levels detected in this study ranged from 0.07 to 9.37 μmol/mol of creatinine (0.13-18.0 μg/g of creatinine). Regarding allele frequency (PON1 Q192R polymorphism), the 192Q-allele frequency was 0.43 and for the 192R-allele it was 0.57. In relation to serum ADMA levels, the levels ranged from 0.06 to 1.46 μmol/L. Moreover, multiple linear regression analysis was performed and associations between urinary 1-OHP levels (β = 0.05, p = 0.002), PON1 Q192R polymorphism (β = 0.04, p = 0.003) and serum ADMA concentrations were found. Besides, an interaction (gene-environment interaction) of both independent variables (1-OHP and PON1 polymorphism) on serum ADMA levels was found (β = 0.04, p = 0.02) in the constructed multiple linear model. Therefore, according to the significance of this research, it is necessary to execute health programs to reduce cardiovascular risk in the assessed population.
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Affiliation(s)
- Ángeles C Ochoa-Martínez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Tania Ruíz-Vera
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Claudia I Almendarez-Reyna
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Sandra T Orta-García
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Iván N Pérez-Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Unidad Académica Multidisciplinaria Zona Media, Universidad Autónoma de San Luis Potosí, Rio-verde, San Luis Potosí, Mexico.
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Abstract
Objective: The polymorphisms/mutations of genes encoding proteins and enzymes involved in lipoprotein metabolism play important roles in the development of diabetic dyslipidemia. The aim of our study was to investigate the effects of LPL (rs320), LIPC (rs2070895), SCARB1 (rs5888), LCAT (rs2292318), CETP (rs708272), ADIPOQ (rs1501299), RETN (rs3745367), PON1 (rs662), and MNSOD (rs4880) gene polymorphisms on lipid metabolism and diabetic dyslipidemia. Methods: This case-control study included 217 patients with diabetic dyslipidemia and 212 healthy age- and gender-matched individuals. Genomic DNA isolation was performed from blood samples, and genotype analysis was performed using melting curve analysis on a LightCycler® 480 Instrument. The chi-square test was used to compare genotype distribution and allele frequencies between the groups. Results: Significant associations were observed between LPL (rs320) (p<0.001), LIPC (rs2070895) (p<0.001), SCARB1 (rs5888) (p<0.001), LCAT (rs2292318) (p<0.001), CETP (rs708272) (p<0.001), ADIPOQ (rs1501299) (p=0.01), RETN (rs3745367) (p<0.001), and MNSOD (rs4880) (p<0.001) polymorphisms and diabetic dyslipidemia. However, no association was observed between PON1 (rs662) polymorphisms and diabetic dyslipidemia (p=0.611). Conclusion: LPL (rs320), LIPC (rs2070895), SCARB1 (rs5888), LCAT (rs2292318), CETP (rs708272), ADIPOQ (rs1501299), RETN (rs3745367), and MNSOD (rs4880) polymorphisms play an important role in basic molecular metabolism in diabetic dyslipidemia. Therefore, these polymorphisms may be used as a predictive marker for diabetic dyslipidemia in high-risk patients. (Anatol J Cardiol 2017; 17: 313-21)
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García-González I, Mendoza-Alcocer R, Pérez-Mendoza GJ, Rubí-Castellanos R, González-Herrera L. Distribution of genetic variants of oxidative stress metabolism genes: Paraoxonase 1 (PON1) and Glutathione S-transferase (GSTM1/GSTT1) in a population from Southeastern Mexico. Ann Hum Biol 2016; 43:554-562. [PMID: 26620773 DOI: 10.3109/03014460.2015.1126353] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Paraoxonase 1 (PON1) and glutathione S-transferases (GSTs) are involved in the biotransformation of xenobiotics. Variation in the enzyme concentration and activity suggests individual differences for the degree of protection against oxidative stress. AIM This study analysed the distribution of SNPs Q192R, L55M (PON1) and variants in GSTM1 and GSTT1 genes in a population from Southeastern Mexico. SUBJECTS AND METHODS One hundred and fifty-one Mexican Mestizo healthy volunteers were included. PON1 polymorphisms were determined by Taqman allele discrimination real time-PCR, whereas GSTM1 and GSTT1 genes were determined with a multiplex PCR-based method. RESULTS All genotypes were in Hardy-Weinberg equilibrium, except for GSTM1. The genotypic distributions of Q192R and L55M were 22% QQ, 48% QR, 30% RR, 62% LL, 34% LM and 4% MM, respectively, whereas the allele frequencies were 0.46 (Q), 0.54 (R), 0.79 (L) and 0.21 (M). The most frequent haplotype was R/L (46.7%). It was found that 31% and 9% of the individuals had the GSTM1 and GSTT1 null genotype, respectively. The frequency of the combined null genotype GSTM1*0/GSTT1*0 was 4.64%. CONCLUSION The results showed that the frequencies of polymorphisms of PON1, GSTM1 and GSTT1 in the Yucatán population differ to those observed in other ethnic groups and provide useful data for epidemiological studies.
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Affiliation(s)
- I García-González
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - R Mendoza-Alcocer
- b Centro Estatal de la Transfusión Sanguínea, Secretaria de Salud de Yucatán , Mérida, Yucatán , Mexico
| | - G J Pérez-Mendoza
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - R Rubí-Castellanos
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - L González-Herrera
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
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Ochoa-Martínez ÁC, Ruíz-Vera T, Orta-García ST, Domínguez-Cortinas G, Jiménez-Avalos JA, Pérez-Maldonado IN. Association between Q192R paraoxonase 1 polymorphism and serumadipocyte-fatty acid binding protein (FABP4) levels in Mexican women. Ann Hum Biol 2016; 44:389-391. [DOI: 10.1080/03014460.2016.1245785] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ángeles C. Ochoa-Martínez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Tania Ruíz-Vera
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Sandra T. Orta-García
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Gabriela Domínguez-Cortinas
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Jorge A. Jiménez-Avalos
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Iván N. Pérez-Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
- Unidad Académica Multidisciplinaria Zona Media, Universidad Autónoma de San Luis Potosí, Rio-verde, San Luis Potosí, México
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Atar A, Gedikbasi A, Sonmezay E, Kiraz ZK, Abbasoglu S, Tasci AI, Tugcu V. Serum paraoxonase-1 gene polymorphism and enzyme activity in patients with urolithiasis. Ren Fail 2016; 38:378-82. [DOI: 10.3109/0886022x.2015.1136872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mitra S, Khurana P, Panmei T, Kshatriya GK. Allele frequencies of PON1 Q192R polymorphism in four populations of India. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:1051-1056. [PMID: 25867687 DOI: 10.1016/j.etap.2015.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/26/2015] [Accepted: 03/03/2015] [Indexed: 06/04/2023]
Abstract
The allelic distribution at Paraoxonase 1 (PON1) Q192R polymorphism determines differential sensitivity towards certain organophosphate pesticides. The alleles Q (Glutamine) and R (Arginine) at amino acid position 192 are responsible for the lower and higher activity of the enzyme towards paraoxon respectively, making knowledge of this distribution in different populations vital. This study reports the genotype and allele frequencies of the Gln192Arg polymorphism of PON1 in four populations of India, comprising two caste and two tribal groups hitherto unexamined for this polymorphism. The R allele frequencies in Jat, Meo, Santhal and Zeliangrong populations were found to be 0.47, 0.45, 0.54 and 0.51 respectively. The gene diversity analyses show a high genetic differentiation at this locus indicative of the role of populations' history and other evolutionary forces. A comparison with allele frequencies among 106 populations from different continents showed a concordance with their geographic distribution which will have repercussions in policies targeting pesticide usage.
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Affiliation(s)
- Siuli Mitra
- Department of Anthropology, University of Delhi, Delhi 110007, India
| | - Priyanka Khurana
- Department of Anthropology, School of Applied Sciences, Dr. Harisingh Gour University, Sagar, Madhya Pradesh, India
| | - Tabitha Panmei
- Department of Anthropology, University of Delhi, Delhi 110007, India
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Khoshi A, Mortazavi Y, Sokhanvar S, Tanzifi A, Akbari A, Kalantari S, Mazloomzadeh S. Determination of PON1 Gene Polymorphisms in Iranian Individuals with High LDL/HDL Ratios. Indian J Clin Biochem 2015. [DOI: 10.1007/s12291-015-0479-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Alam R, Tripathi M, Mansoori N, Parveen S, Luthra K, Lakshmy R, Sharma S, Arulselvi S, Mukhopadhyay AK. Synergistic epistasis of paraoxonase 1 (rs662 and rs85460) and apolipoprotein E4 genes in pathogenesis of Alzheimer's disease and vascular dementia. Am J Alzheimers Dis Other Demen 2014; 29:769-76. [PMID: 24965284 PMCID: PMC10852837 DOI: 10.1177/1533317514539541] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Genetic polymorphism and epistasis play a role in etiopathogenesis of Alzheimer's disease (AD) and vascular dementia (VaD). In this case-control study, a total of 241 patients were included in the study to see the effect of paraoxonase 1 (PON1; rs662 and rs85460) and apolipoprotein E (ApoE) genes in altering the odds of having AD and VaD along with serum PON and lipid profile. The presence of at least 1 variant allele of rs662, but not rs85460, increased the risk of having AD by 1.8-fold (95% confidence interval [CI]: 0.97-3.40) and VaD by 3.09-fold (95% CI: 1.4-6.9). The interaction between PON1 genes (rs662 and rs85460) and ApoE genes showed synergistic epistasis in altering the odds of significantly having both AD and VaD. On the other hand, low serum level of high-density lipoprotein and low level of serum PON activity were found associated significantly (P ≤ .001 in both cases) only in patients with VaD as compared to healthy control.
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Affiliation(s)
- Rizwan Alam
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Manjari Tripathi
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Nasim Mansoori
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shama Parveen
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Ramakrishnan Lakshmy
- Department of Cardiac biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Subhadra Sharma
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Asok K Mukhopadhyay
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
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Paraoxonase 1 and its relationship with pesticide biomarkers in indigenous Mexican farmworkers. J Occup Environ Med 2014; 56:281-90. [PMID: 24423702 DOI: 10.1097/01.jom.0000438381.25597.88] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Biomarkers of pesticide toxicity and paraoxonase 1 (PON1) phenotype and genotypes were evaluated in indigenous Mexican farmworkers exposed mainly to organophosphate (OP) pesticides. METHODS Acetylcholinesterase, butyrylcholinesterase, and PON1 activities--arylesterase and CMPAase activities--were evaluated spectrophotometrically. PON1 55 and 192 polymorphisms were determined by real-time polymerase chain reaction. Hematological parameters were evaluated using a cytometer. RESULTS Butyrylcholinesterase and arylesterase activities were lower in farmworkers, who also showed lower levels of leukocytes but higher percentages of lymphocytes when compared with the nonexposed group. Our results showed a high frequency of OP, high hydrolysis-related PON1 alleles (LL/QR and LL/RR) in the study population. An association was observed between CMPAase activity and PON1Q192R polymorphism. CONCLUSIONS Our results suggest that pesticide exposure modifies biochemical and hematological biomarkers in the study population, and that the phenotype of PON1 (CMPAase) is a sensible susceptibility biomarker of OP pesticide toxicity.
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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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PON1 gene polymorphisms and plasma PON1 activities in Takayasu's arteritis disease. Immunol Lett 2013; 152:77-82. [DOI: 10.1016/j.imlet.2013.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/13/2013] [Accepted: 04/20/2013] [Indexed: 11/22/2022]
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The Past and Present of Paraoxonase Enzyme: Its Role in the Cardiovascular System and Some Diseases. J Med Biochem 2012. [DOI: 10.2478/v10011-012-0006-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Past and Present of Paraoxonase Enzyme: Its Role in the Cardiovascular System and Some DiseasesAlthough paraoxonase is synthesized in many tissues including the heart, colon, kidneys, lungs, small intestines and brain, its major locus of synthesis is the liver. PON1 is in close association with apolipoproteins and protects LDL against oxidation. It was reported that PON1 quantities dropped to 40 times lower than normal in cardiovascular diseases and diseases like diabetes, ulcerative colitis, Crohn's disease, chronic renal failure, SLE, Behcet's disease, cancer, hepatitis B, obesity, metabolic syndrome, Alzheimer's and dementia. It is speculated that the concerning decline in serum PON1 amount results from single nucleotide polymorphism in the coding (Q192R, L55M) and promoter (T-108C) sites of the PON1 gene. Additionally, circulating amounts of PON1 are affected by vitamins, antioxidants, fatty acids, dietary factors, drugs, age and lifestyle. This collection attempts to review and examine the past and present studies of paraoxonase and its relation with the cardiovascular system and some relevant diseases.
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Yaghmaei M, Hashemi M, Azarian A, Moazeni-Roodi A, Mokhtari M, Naghavai A, Salimi S, Mohammadi M, Taheri M, Ghavami S. Association of L55M and Q192R Polymorphisms of Paraoxonase-1 Gene with Preeclampsia. Arch Med Res 2011; 42:324-8. [DOI: 10.1016/j.arcmed.2011.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Accepted: 06/15/2011] [Indexed: 11/16/2022]
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Martínez-Salazar MF, Almenares-López D, García-Jiménez S, Sánchez-Alemán MA, Juantorena-Ugás A, Ríos C, Monroy-Noyola A. Relationship between the paraoxonase (PON1) L55M and Q192R polymorphisms and obesity in a Mexican population: a pilot study. GENES AND NUTRITION 2011; 6:361-8. [PMID: 21484160 DOI: 10.1007/s12263-011-0215-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 03/08/2011] [Indexed: 10/18/2022]
Abstract
The aim of this study was to examine the relationship between the L55M and Q192R paraoxonase (PON1) polymorphisms and obesity in a population of adult Mexican workers. The study population included 127 adult individuals from the Universidad Autónoma del Estado de Morelos, ranging in age from 20 to 56 years and representing both sexes. Based on body mass index, 63 individuals were classified as obese and 64 as normal weight. The PON1-Q192R and PON1-L55M polymorphisms were determined by restriction fragment length polymorphism PCR analysis. Both arylesterase and paraoxonase activity levels were similar in both groups, whereas systolic pressure, triglyceride, total cholesterol, low-density lipoprotein cholesterol, very-low-density lipoprotein cholesterol, glucose, and insulin levels were higher in the obese group than in the normal-weight group (P < 0.05). An exception was the high-density lipoprotein cholesterol (HDL-C) levels, which were lower in the obese group (P < 0.05). Although the PON1-Q192R polymorphism was not associated with either group, the frequency of the homozygous L genotype for the PON1-L55M polymorphism was higher in the obese group than in the normal-weight group (P < 0.05). In conclusion, this study established a positive association between the PON1-L55M homozygous L genotype and obesity.
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Affiliation(s)
- Maria Fernanda Martínez-Salazar
- Laboratorio de Diagnóstico Molecular, Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001 Col. Chamilpa, 62209, Cuernavaca, Morelos, México
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Gonzalez-Herrera L, Martín Cerda-Flores R, Luna-Rivero M, Canto-Herrera J, Pinto-Escalante D, Perez-Herrera N, Quintanilla-Vega B. Paraoxonase 1 polymorphisms and haplotypes and the risk for having offspring affected with spina bifida in Southeast Mexico. ACTA ACUST UNITED AC 2011; 88:987-94. [PMID: 21031563 DOI: 10.1002/bdra.20727] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Spina bifida (SB) is a common congenital malformation in Southeast Mexico. Parents of children with SB reside in areas with frequent pesticide spraying or have agriculture activities, suggesting potential exposure to pesticides. Paraoxonase 1 (PON1) is the responsible enzyme for deactivation of organophosphates (OP) in the central nervous system. Polymorphisms of PON1 genes influence the catalytic activity and plasma protein level of the enzyme, therefore, genotypic characterization of PON1 gene represents a potential predictor for susceptibility to OP-related effects. METHODS The frequency of PON1 haplotypes and polymorphisms (-108CT, L55M, and Q192R) were determined in this study. A case-control study was performed to evaluate the risk for having offspring affected by SB in 152 cases and 160 control parents. Polymorphisms were determined by PCR amplification and restriction fragment length polymorphism and Real Time-PCR. Odds ratios and confidence interval 95% were estimated. RESULTS Genotype frequencies for the three PON1 polymorphisms were distributed according to Hardy-Weinberg expectations (p > 0.05) and were significantly different between cases and controls (p < 0.05). The heterozygous CT genotype of -108CT polymorphism, the RR genotype of Q192R polymorphism, both LM and MM genotypes of L55M polymorphism, and the haplotypes 221 and 222 (for -108CT, L55M, and Q192R) were associated with the risk for having a child affected by SB (p < 0.02). The heterozygous -108CT genotype was associated only maternally, whereas the heterozygous L55M genotype was relevant only in the fathers. The RR homozygous genotype was relevant both in mothers and fathers, suggesting the importance of this substrate-specific polymorphism. CONCLUSION Results suggest that PON1 polymorphisms are relevant risk factors for having offspring affected with SB in this population from Southeast Mexico.
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Affiliation(s)
- Lizbeth Gonzalez-Herrera
- Laboratorio de Genética, Centro de Investigaciones Regionales, Universidad Autónoma de Yucatán, Calle 59 No. 490 x Av. Itzaes, Mérida, Yucatán, México.
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Fujihara J, Yasuda T, Kawai Y, Morikawa N, Arakawa K, Koda Y, Soejima M, Kimura-Kataoka K, Takeshita H. First survey of the three gene polymorphisms (PON1 Q192R, eNOS E298D and eNOS C-786T) potentially associated with coronary artery spasm in African populations and comparison with worldwide data. Cell Biochem Funct 2011; 29:156-63. [DOI: 10.1002/cbf.1721] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 12/09/2010] [Accepted: 12/13/2010] [Indexed: 01/08/2023]
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Chang MH, Yesupriya A, Ned RM, Mueller PW, Dowling NF. Genetic variants associated with fasting blood lipids in the U.S. population: Third National Health and Nutrition Examination Survey. BMC MEDICAL GENETICS 2010; 11:62. [PMID: 20406466 PMCID: PMC2876148 DOI: 10.1186/1471-2350-11-62] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Accepted: 04/20/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND The identification of genetic variants related to blood lipid levels within a large, population-based and nationally representative study might lead to a better understanding of the genetic contribution to serum lipid levels in the major race/ethnic groups in the U.S. population. METHODS Using data from the second phase (1991-1994) of the Third National Health and Nutrition Examination Survey (NHANES III), we examined associations between 22 polymorphisms in 13 candidate genes and four serum lipids: high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), total cholesterol (TC), and triglycerides (TG). Univariate and multivariable linear regression and within-gene haplotype trend regression were used to test for genetic associations assuming an additive mode of inheritance for each of the three major race/ethnic groups in the United States (non-Hispanic white, non-Hispanic black, and Mexican American). RESULTS Variants within APOE (rs7412, rs429358), PON1 (rs854560), ITGB3 (rs5918), and NOS3 (rs2070744) were found to be associated with one or more blood lipids in at least one race/ethnic group in crude and adjusted analyses. In non-Hispanic whites, no individual polymorphisms were associated with any lipid trait. However, the PON1 A-G haplotype was significantly associated with LDL-C and TC. In non-Hispanic blacks, APOE variant rs7412 and haplotype T-T were strongly associated with LDL-C and TC; whereas, rs5918 of ITGB3 was significantly associated with TG. Several variants and haplotypes of three genes were significantly related to lipids in Mexican Americans: PON1 in relation to HDL-C; APOE and NOS3 in relation to LDL-C; and APOE in relation to TC. CONCLUSIONS We report the significant associations of blood lipids with variants and haplotypes in APOE, ITGB3, NOS3, and PON1 in the three main race/ethnic groups in the U.S. population using a large, nationally representative and population-based sample survey. Results from our study contribute to a growing body of literature identifying key determinants of plasma lipoprotein concentrations and could provide insight into the biological mechanisms underlying serum lipid and cholesterol concentrations.
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Affiliation(s)
- Man-huei Chang
- National Office of Public Health Genomics, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Ordoñez-Razo RM, Canizales-Quinteros S, Rodríguez-Cruz M, Peñaloza R, Minauro-Sanmiguel F, Canto-Cetina T, Canto P, Coral-Vázquez R, Salamanca-Gómez F. Delta-sarcoglycan gene polymorphism frequency in Amerindian and Mestizo populations of Mexico. Genet Test Mol Biomarkers 2010; 14:237-40. [PMID: 20384457 DOI: 10.1089/gtmb.2009.0147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mutations on the delta-sarcoglycan gene have been associated with the development of both hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy. Recently, the polymorphism c.-94C>G was associated with HCM in Japanese patients. The aim of our study was to evaluate the frequency of c.-94C>G polymorphism in Mexican-Amerindian and Mexican-Mestizo populations. We analyzed the frequency of this polymorphism in 165 Mexican-Amerindian individuals (23 Triquis, 25 Zapotecos, 24 Mayas, 41 Nahuas, and 52 Mixtecos) and 100 unrelated Mexican-Mestizos. Allele frequencies were similar in all Amerindian groups (0.33 Triquis, 0.54 Zapotecos, 0.54 Mayas, 0.46 Nahuas, and 0.49 Mixtecos). When compared with Mexican-Mestizos, only Triquis were different (p = 0.00742). However, when comparing the total sample of the Amerindian population with the Mestizos, the difference was not significant (p = 0.12225). Allele frequencies of Mexican populations were higher than in Asians and less than African and European populations (p < 0.05). These data show that the distribution of the C allele is higher in Mexican populations studied and consequently it is necessary to define if this may be associated with genetic susceptibility for HCM in the Mexican patients.
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Affiliation(s)
- Rosa María Ordoñez-Razo
- Unidad de Investigación Médica en Genética Humana, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
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Khoshi A, Mortazavi Y, Akbari A, Sokhanvar S, Kalantari S. Relationship between PON1L55M and Q192R gene polymorphisms and high APO B/APO A-I ratios. Indian J Clin Biochem 2009; 24:381-7. [PMID: 23105865 DOI: 10.1007/s12291-009-0069-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Elevated Apolipoprotein B Apolipoprotein A-I ratio is a risk factor for predicting coronary artery disease (CAD). Paraoxonase 1 (PON1) is a high density lipoprotein (HDL) associated serum enzyme. PON1 protects lowdensity lipoproteins (LDLs) from oxidative modifications and thus has a protective effect against CAD progression. There are two common polymorphisms, Q192R and L55M, in PON1 gene. There may be a relationship between these polymorphisms and elevated ApoB/ApoA-I ratios. Therefore, we decided to evaluate effect of these polymorphisms on individuals with high and normal ApoB/ApoA-I ratios. To evaluate Q192R and L55M polymorphisms in Iranian case group (n=75) with high ApoB/ApoA-I ratio, and control group (n=75) with normal ApoB/ApoA-I ratio, we carried out PCR using specific primers. Then, we digested PCR products by RFLP. ApoB and ApoA-I levels were determined by immunoturbidimetry method. Genotype frequencies for Q192R were determined: 49.3%QQ, 44%QR, 6.7%RR in case group, and 53.3%QQ, 33.3%QR, 13.4%RR in controls (P= 0.236). Genotype frequencies for L55M were determined: 21.3%LL, 68%LM, 10.7%MM in case group and 42.7%LL, 52%LM, 5.3%MM in controls (P= 0.016). A significant relationship between L55M polymorphism and familial history of cardiovascular disease was found (P= 0.011). In our study PON1L55M polymorphism was associated with high ApoB/ApoA-I ratios in case group. Thus, L55M polymorphism may be an independent risk factor for cardiovascular disease. Since L55M polymorphism was associated with familial history of cardiovascular disease, it is better to evaluate L55M polymorphism in younger ages even in the absence of high ApoB/ApoA-I ratios.
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Affiliation(s)
- Amirhosein Khoshi
- Department of Clinical Biochemistry, Zanjan University of Medical Sciences, Zanjan, Iran ; Metabolic Disorders Research Center, Zanjan, Iran
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Palmer RF, Walker T, Mandell D, Bayles B, Miller CS. Explaining low rates of autism among Hispanic schoolchildren in Texas. Am J Public Health 2009; 100:270-2. [PMID: 20019320 DOI: 10.2105/ajph.2008.150565] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
In data from the Texas Educational Agency and the Health Resources and Services Administration, we found fewer autism diagnoses in school districts with higher percentages of Hispanic children. Our results are consistent with previous reports of autism rates 2 to 3 times as high among non-Hispanic Whites as among Hispanics. Socioeconomic factors failed to explain lower autism prevalence among Hispanic schoolchildren in Texas. These findings raise questions: Is autism underdiagnosed among Hispanics? Are there protective factors associated with Hispanic ethnicity?
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Affiliation(s)
- Raymond F Palmer
- Department of Family and Community Medicine, University of Texas Health Science Center, 7703 Floyd Curl Dr, San Antonio TX 78229-3900, USA.
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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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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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Ginsberg G, Neafsey P, Hattis D, Guyton KZ, Johns DO, Sonawane B. Genetic polymorphism in paraoxonase 1 (PON1): Population distribution of PON1 activity. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2009; 12:473-507. [PMID: 20183530 DOI: 10.1080/10937400903158409] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Paraoxonase-1 (PON1) is a serum esterase that hydrolyzes the activated oxon form of several organophosphates. The central role of PON1 in detoxification of organophosphate (OP) pesticides was demonstrated in knockout mouse studies, suggesting that human variability in PON1 needs to be considered in health risk assessments involving exposure to these pesticides. The current analysis focused on two genetic loci in which polymorphisms demonstrated to affect PON1 activity. Detailed kinetic studies and population studies found that the *192Q (wild type) allele is more active toward some substrates (such as sarin, soman, and diazoxon) and less active toward others (such as paraoxon or chlorpyrifos) relative to the variant *192R allele. Another allele that affects activity is *55M; PON1 enzyme quantity, rather than specific activity or substrate preference, is altered. The *192R variant occurs commonly with a frequency of 25-64% across the populations analyzed. The *55M allele is less common, occurring in 5-40% of individuals depending upon the ethnic group studied. These activity and allele frequency data were incorporated into Monte Carlo simulations in which the frequency of both variant alleles was simultaneously modeled in Caucasian, African American, and Japanese populations. The resulting Monte Carlo activity distributions were bimodal for the substrate paraoxon with approximately fourfold differences between low- and high-activity modal medians. Differences in activity between total population median and 1st percentile were five- to sixfold. When sarin metabolic variability was simulated, the population distributions were unimodal. However, there was an even greater degree of interindividual variability (median to 1st percentile difference >20-fold). These results show that the combined effects of two PON1 allelic variants yielded a population distribution that is associated with a considerable degree of interindividual variability in enzyme activity. This indicates that assessments involving PON1 substrates need to evaluate polymorphism-related variability in enzyme activity to display the distribution of internal doses and adverse responses. This may best be achieved via physiologically based pharmacokinetic (PBPK) models that input PON1 activity distributions, such as those generated in this analysis, to simulate the range of oxon internal doses possible across the population.
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Affiliation(s)
- Gary Ginsberg
- Connecticut Department of Public Health, Hartford, 06134, USA.
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Pérez-Herrera N, May-Pech C, Hernández-Ochoa I, Castro-Mañé J, Rojas-García E, Borja-Aburto VH, Castillo-Burguete T, Quintanilla-Vega B. PON1Q192R polymorphism is associated with lipid profile in Mexican men with Mayan ascendancy. Exp Mol Pathol 2008; 85:129-34. [PMID: 18582459 DOI: 10.1016/j.yexmp.2008.05.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Revised: 05/28/2008] [Accepted: 05/29/2008] [Indexed: 10/22/2022]
Abstract
Paraoxonase (PON1) enzyme is associated with high-density lipoproteins (HDL) that prevents low-density lipoprotein (LDL) oxidation. PON1Q192R polymorphism is associated with a risk of coronary heart disease and low HDL levels in case-control studies, but the issue is yet unresolved. Mexico has shown an increase in cardiovascular diseases, and some genetic factors may play a role. Our purpose was to evaluate the association between PON1Q192R and L55M polymorphisms and serum lipid profile in a healthy Mexican population. Ninety unrelated male inhabitants from southeastern Mexico with Mayan ascendancy agreed to participate. Demographic characteristics, lifestyle and medical history were obtained by questionnaire. Lipid profile was determined by enzymatic methods, PON1 activity by using paraoxon and phenylacetate and PON1 genotype by real-time PCR. HDL-cholesterol (HDL-C) levels were associated with genotype: 192RR homozygote subjects had lower HDL-C levels than 192QQ homozygotes, and individuals with 192RR and 192QR genotypes had an odds ratio (OR)=7.05 (95% confidence interval (CI)=1.29-38.34) of having HDL-C <60 mg/dL. Individuals with higher paraoxonase activity (>600.18 U/L) had a slight risk (OR=4.9, 95% CI=0.83-22.02) of having HDL-C <60 mg/dL. PON155LM polymorphism was associated with higher LDL-cholesterol. PON1Q192R polymorphism showed a role in modulating lipid profile: 192RR homozygotes showed the least favorable lipoprotein levels.
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Affiliation(s)
- Norma Pérez-Herrera
- Sección Externa de Toxicología, CINVESTAV-IPN, Av. IPN #2508, Col. Zacatenco, Mexico City, 07360, Mexico
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Pérez-Herrera N, Polanco-Minaya H, Salazar-Arredondo E, Solís-Heredia MJ, Hernández-Ochoa I, Rojas-García E, Alvarado-Mejía J, Borja-Aburto VH, Quintanilla-Vega B. PON1Q192R genetic polymorphism modifies organophosphorous pesticide effects on semen quality and DNA integrity in agricultural workers from southern Mexico. Toxicol Appl Pharmacol 2008; 230:261-8. [PMID: 18430447 DOI: 10.1016/j.taap.2008.02.021] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 02/22/2008] [Indexed: 11/24/2022]
Abstract
Pesticide exposure, including organophosphorous (OP) insecticides, has been associated with poor semen quality, and paraoxonase (PON1), an enzyme involved in OP deactivation, may have a role on their susceptibility, due to PON1 polymorphisms. Our objective was to evaluate the role of PON1Q192R polymorphism on the susceptibility to OP toxicity on semen quality and DNA integrity in agricultural workers. A cross-sectional study was conducted in farmers with Mayan ascendancy from southeastern Mexico chronically exposed to pesticides; mostly OP. Fifty four agricultural workers (18-55 years old) were included, who provided semen and blood samples. Semen quality was evaluated according to WHO, sperm DNA damage by in situ-nick translation (NT-positive cells), PON1Q192R polymorphism by real-time PCR and serum PON1 activity by using phenylacetate and paraoxon. Two OP exposure indexes were created: at the month of sampling and during 3 months before sampling, representing the exposure to spermatids-spermatozoa and to cells at one spermatogenic cycle, respectively. PON1 192R and 192Q allele frequencies were 0.54 and 0.46, respectively. Significant associations were found between OP exposure at the month of sampling and NT-positive cells and sperm viability in homozygote 192RR subjects, and dose-effect relationships were observed between OP exposure during 3 months before sampling and sperm quality parameters and NT-positive cells in homozygote 192RR farmers. This suggests that cells at all stages of spermatogenesis are target of OP, and that there exists an interaction between OP exposure and PON1Q192R polymorphism on these effects; farmers featuring the 192RR genotype were more susceptible to develop reproductive toxic effects by OP exposure.
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Affiliation(s)
- N Pérez-Herrera
- Sección Externa de Toxicología, CINVESTAV-IPN, PO Box 14-760, Mexico City, 07360, Mexico
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Cataño HC, Cueva JL, Cardenas AM, Izaguirre V, Zavaleta AI, Carranza E, Hernández AF. Distribution of paraoxonase-1 gene polymorphisms and enzyme activity in a Peruvian population. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2006; 47:699-706. [PMID: 17078098 DOI: 10.1002/em.20259] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Paraoxonase-1 (PON1) is a serum esterase associated with high density lipoproteins and capable of detoxifying toxic metabolites of organophosphorus (OP) compounds. Two major polymorphisms have been described in the coding region of the PON1 gene at positions 192 and 55 and at least five in the 5'-regulatory region, the most important at position -108. Depending on the substrate, PON1 192 Q/R polymorphism can affect PON1 enzymatic activity. In the present study, we have determined the distribution of the PON1 192 Q/R and -108 C/T polymorphisms in a Peruvian population and compared the distribution of these polymorphisms with those of other world populations. PON1 phenotype and enzyme activity also were measured as they can influence the population resistance to the toxicity of OP compounds. The genotype distribution at position 192 was: QQ = 0.236, QR = 0.607, and RR = 0.157; and distribution at position -108 was: CC = 0.315, CT = 0.596, and TT = 0.089. The frequencies of the high activity R and C alleles were 0.461 and 0.613, respectively. The frequency of the PON1 192 Q allele was significantly lower than that of American, Caucasian-American, European-Brazilian, and Costa Rican samples. Outside the American continent, the frequency of this allele was lower than for all European countries, Thais, and Indians, but higher than for Chinese or Japanese. Regarding the toxicological importance of these polymorphisms, it was inferred that PON1 phenotyping (assessment of the R alloform) and genotyping (determination of the PON1 -108TT genotype) could be helpful as individual markers of susceptibility. PON1 phenotyping may be useful in further epidemiological studies involving agriculture workers occupationally exposed to OP compounds in developing countries.
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Affiliation(s)
- Héctor C Cataño
- Laboratorio de Biología Molecular, Instituto de Química Biológica, Microbiología y Biotecnología, Facultad de Farmacia y Bioquímica, Universidad Nacional Mayor de San Marcos, Jr Puno 1002, Jardín Botánico, Lima 1, Perú
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Kim YJ, Park H, Lee HY, Ahn YM, Ha EH, Suh SH, Pang MG. Paraoxonase gene polymorphism, serum lipid, and oxidized low-density lipoprotein in preeclampsia. Eur J Obstet Gynecol Reprod Biol 2006; 133:47-52. [PMID: 16949193 DOI: 10.1016/j.ejogrb.2006.07.046] [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] [Received: 03/16/2006] [Revised: 07/05/2006] [Accepted: 07/19/2006] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Human paraoxonase-1 (PON-1) is thought to play a role in preeclampsia and atherosclerosis, mainly through a reduction in low-density lipoprotein oxidation. Oxidized low-density lipoprotein (LDL) is very important in endothelial dysfunction of preeclampsia. The aim of the present study was to investigate the association between PON1 gene polymorphism and preeclampsia and to determine concentrations of serum lipid in preeclampsia patients. We aimed also to evaluate serum oxidized LDL levels in normal and preeclampsia patients. STUDY DESIGN We performed the present study in 57 control women and 32 preeclampsia patients. PON-1 genotypes were determined by polymerase chain reaction amplification and restriction fragment length polymorphism. Serum triglyceride, cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol levels were measured. We also measured serum levels of oxidized LDL by ELISA method. RESULTS There was no significant difference in PON1 genotype frequencies between the control and preeclampsia patients. The levels of serum cholesterol and high-density lipoprotein were significantly lower in preeclampsia patients compared with that of the control women (p=0.05, and p<0.01, respectively). The serum levels of oxidized LDL in preeclampsia patients were significantly higher than those in the control women (p=0.001). CONCLUSIONS These findings support the importance of the atherogenic lipid profile and oxidized LDL that is enhanced in preeclampsia, and these findings may be significant contributors to endothelial dysfunction.
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Affiliation(s)
- Young Ju Kim
- Department of Obstetrics and Gynecology, Ewha Womans University, Seoul, Republic of Korea.
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