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Çevik D, Gümral N, Aslankoç R, Özmen Ö, Yalçın A, Kavrık O. Protective effect of pregabalin on renal and renal endothelial damage in sepsis induced by lipopolysaccharide. Immunopharmacol Immunotoxicol 2024; 46:55-66. [PMID: 37606510 DOI: 10.1080/08923973.2023.2250911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
OBJECTIVE We investigated the protective effects of pregabalin (PRG) on kidney and renal endothelial damage in sepsis induced by Lipopolysaccharide (LPS). MATERIALS AND METHODS Rats were randomly divided into three groups as control, LPS and LPS+PRG. Saline solution was administered 30 mg/kg orally and 5 mg/kg intraperitoneally (i.p.) to the control group. LPS was applied as 5 mg/kg, i.p. to the LPS group. In the LPS+PRG group, PRG at 30 mg/kg orally and one hour before LPS administration, one hour later 5 mg/kg i.p. LPS was applied. Rats were sacrificed 6 hours after LPS administration. RESULTS White Blood Cell (WBC), granulocyte, Blood Urea Nitrogen (BUN), creatinine, uric asid, Total Oxidant Status (TOS) and Oxidative Stress Index (OSI) significantly increased (p<0.05); platelets (PLT), activated partial thromboplastin time (aPTT) and Total Antioxidant Status (TAS) significantly decreased in the LPS group compared to the control group (p<0.05). In the LPS+PRG group WBC, granulocyte, BUN, creatinine, uric asid, TOS and OSI significantly decreased (p<0.05); PLT, aPTT and TAS significantly increased compared to the LPS group(p<0.05). Histopathological examinations showed that kidney and renal endothelial damage in the LPS group decreased in the LPS+PRG group. Immunohistochemically IL1-β, IL-6, IL-10, TNF-α expressions in kidney tissue and Toll-Like Receptors-4 (TLR-4) and NF-κB expressions in the renal endothelial tissue significantly increased in the LPS group compared to the control group and significantly decreased in the LPS+PRG group compared to the LPS group (p<0.001). CONCLUSIONS Sepsis causes kidney and renal endothelial damage and PRG reduces this damage. Therefore PRG can be used in prophylactic treatment in sepsis, supported by more studies.
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Affiliation(s)
- Dilek Çevik
- Department of Physiology, Suleyman Demirel University, Isparta, Turkey
| | - Nurhan Gümral
- Department of Physiology, Suleyman Demirel University, Isparta, Turkey
| | - Rahime Aslankoç
- Department of Physiology, Suleyman Demirel University, Isparta, Turkey
| | - Özlem Özmen
- Department of Pathology, Burdur Mehmet Akif Ersoy University Faculty of Veterinary, Burdur, Turkey
| | - Arzu Yalçın
- Department of Physiology, Suleyman Demirel University, Isparta, Turkey
| | - Oğuzhan Kavrık
- Department of Physiology, Suleyman Demirel University, Isparta, Turkey
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Gao Z, Xiu M, Liu J, Wu F, Zhang X. Smoking, Symptoms Improvement, and Total Antioxidant Capacity in Patients with Drug-naive First-episode Schizophrenia: A Prospective Cohort Study. Curr Neuropharmacol 2024; 22:1733-1741. [PMID: 37859307 DOI: 10.2174/1570159x22666231019105328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/08/2023] [Accepted: 04/26/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND It has been hypothesized that smoking is associated with the severity of negative symptoms. Until now, no studies have investigated whether the impact of smoking on negative symptoms is dependent on antioxidants. This study was designed to evaluate the effect of smoking on therapeutic response and total antioxidants capacity (TAOC) in antipsychotic-naïve first-episode (ANFE) patients. METHODS The severity of the patient's symptoms was assessed using the Positive and Negative Syndrome Scale (PANSS). A total of 237 ANFE patients were recruited and treated with risperidone (oral tablets, 4-6 mg/day twice a day) for 12 weeks. PANSS was assessed at baseline and a 12-week follow-up. Plasma TAOC levels were also assayed at baseline and week 12. RESULTS Relative to nonsmokers with ANFE SZ, smokers had higher PANSS negative subscores. There was no significant difference in TAOC changes after 12 weeks of treatment with risperidone between smokers and non-smokers. However, we found greater improvement in negative symptoms in smokers compared to non-smokers. Further analysis in smokers with SZ demonstrated that improvements in negative symptoms were not associated with changes in TAOC. CONCLUSION Our study suggested that smoking affected the severity of baseline negative symptoms and further contributed to their reduction after risperidone treatment. However, improvement in negative symptoms was not dependent on the changes in TAOC.
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Affiliation(s)
- Zhiyong Gao
- The Affiliated Kangning Hospital of Wenzhou Medical University Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Meihong Xiu
- Peking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Jiahong Liu
- The Affiliated Kangning Hospital of Wenzhou Medical University Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Xiangyang Zhang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
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Behl TA, Stamford BA, Moffatt RJ. The Effects of Smoking on the Diagnostic Characteristics of Metabolic Syndrome: A Review. Am J Lifestyle Med 2023; 17:397-412. [PMID: 37304742 PMCID: PMC10248373 DOI: 10.1177/15598276221111046] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023] Open
Abstract
Metabolic syndrome is a growing epidemic that increases the risk for cardiovascular disease, diabetes, stroke, and mortality. It is diagnosed by the presence of three or more of the following risk factors: 1) obesity, with an emphasis on central adiposity, 2) high blood pressure, 3) hyperglycemia, 4) dyslipidemia, with regard to reduced high-density lipoprotein concentrations, and 5) dyslipidemia, with regard to elevated triglycerides. Smoking is one lifestyle factor that can increase the risk for metabolic syndrome as it has been shown to exert negative effects on abdominal obesity, blood pressure, blood glucose concentrations, and blood lipid profiles. Smoking may also negatively affect other factors that influence glucose and lipid metabolism including lipoprotein lipase, adiponectin, peroxisome proliferator-activated receptors, and tumor necrosis factor-alpha. Some of these smoking-related outcomes may be reversed with smoking cessation, thus reducing the risk for metabolic disease; however, metabolic syndrome risk may initially increase post cessation, possibly due to weight gain. Therefore, these findings warrant the need for more research on the development and efficacy of smoking prevention and cessation programs.
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Affiliation(s)
- Taylor A. Behl
- Department of Nutrition and Integrative Physiology, Florida State
University, Tallahassee, FL, USA (TAB); School of Business, Education,
and Mathematics, Flagler College, St Augustine, FL, USA (TAB); Department of Kinesiology and
Integrative Physiology, Hanover College, Hanover, IN, USA (BAS); and Human Performance Development
Group, Tallahassee, FL, USA (BAS, RJM)
| | - Bryant A. Stamford
- Department of Nutrition and Integrative Physiology, Florida State
University, Tallahassee, FL, USA (TAB); School of Business, Education,
and Mathematics, Flagler College, St Augustine, FL, USA (TAB); Department of Kinesiology and
Integrative Physiology, Hanover College, Hanover, IN, USA (BAS); and Human Performance Development
Group, Tallahassee, FL, USA (BAS, RJM)
| | - Robert J. Moffatt
- Department of Nutrition and Integrative Physiology, Florida State
University, Tallahassee, FL, USA (TAB); School of Business, Education,
and Mathematics, Flagler College, St Augustine, FL, USA (TAB); Department of Kinesiology and
Integrative Physiology, Hanover College, Hanover, IN, USA (BAS); and Human Performance Development
Group, Tallahassee, FL, USA (BAS, RJM)
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Kunachowicz D, Ściskalska M, Kepinska M. Modulatory Effect of Lifestyle-Related, Environmental and Genetic Factors on Paraoxonase-1 Activity: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2813. [PMID: 36833509 PMCID: PMC9957543 DOI: 10.3390/ijerph20042813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Paraoxonase-1 (PON1) is a calcium-dependent, HDL-bound serum hydrolase active toward a wide variety of substrates. PON1 displays three types of activities, among which lactonase, paraoxonase, arylesterase and phosphotriesterase can be distinguished. Not only is this enzyme a major organophosphate compound detoxifier, but it is also an important constituent of the cellular antioxidant system and has anti-inflammatory and antiatherogenic functions. The concentration and activity of PON1 is highly variable among individuals, and these differences can be both of genetic origin and be a subject of epigenetic regulation. Owing to the fact that, in recent decades, the exposure of humans to an increasing number of different xenobiotics has been continuously rising, the issues concerning the role and activity of PON1 shall be reconsidered with particular attention to growing pharmaceuticals intake, dietary habits and environmental awareness. In the following manuscript, the current state of knowledge concerning the influence of certain modifiable and unmodifiable factors, including smoking, alcohol intake, gender, age and genotype variation on PON1 activity, along with pathways through which these could interfere with the enzyme's protective functions, is presented and discussed. Since exposure to certain xenobiotics plays a key role in PON1 activity, the influence of organophosphates, heavy metals and several pharmaceutical agents is also specified.
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Affiliation(s)
| | | | - Marta Kepinska
- Department of Pharmaceutical Biochemistry, Division of Biomedical and Environmental Sciences, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50–556 Wrocław, Poland
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Xiu M, Song X, Yang H, Huang X, Wu F, Zhang X. Smoking Affects the Predictive Roles of Antioxidant Enzymes in the Clinical Response to Risperidone in Schizophrenia: A Large-scale Cohort Study. Curr Neuropharmacol 2023; 21:2151-2158. [PMID: 37132112 PMCID: PMC10556368 DOI: 10.2174/1570159x21666230502125800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 05/04/2023] Open
Abstract
OBJECTIVES There is overwhelming evidence of the relationship between smoking and schizophrenia (SZ). Tobacco smoke is considered to ameliorate the symptoms and reduce the side effects of antipsychotics in SZ patients. However, the underlying biological mechanism by which tobacco smoke improves symptoms in SZ remains unclear. This study was designed to examine the effects of tobacco smoke on antioxidant enzyme activities and psychiatric symptoms after receiving 12-week risperidone monotherapy. METHODS Two hundred and fifteen antipsychotic-naïve first-episode (ANFE) patients were recruited and treated with risperidone for 3 months. The severity of the patient's symptoms was assessed by the Positive and Negative Syndrome Scale (PANSS) at baseline and at post-treatment. Plasma SOD, GSH-Px, and CAT activities were determined at baseline and follow-up. RESULTS Relative to nonsmoking patients with ANFE SZ, patients who smoked had higher baseline CAT activity. In addition, among non-smokers with SZ, baseline GSH-Px was associated with clinical symptom improvement, while baseline CAT was associated with positive symptom improvement in smokers with SZ. CONCLUSION Our findings demonstrate that smoking affects the predictive role of baseline SOD, GSHPx, and CAT activities on clinical symptom improvement in patients with SZ.
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Affiliation(s)
- Meihong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Xiuli Song
- Clinical Psychology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Hanlun Yang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Xingjuan Huang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Xiangyang Zhang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
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6
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Chen N, Liu H, Yao J, Chen S, Xiu M, Wu F, Zhang X. Smoke, GPx activity and symptoms improvement in patients with drug-naive first-episode schizophrenia: A large-scale 12-week follow-up study. Asian J Psychiatr 2022; 77:103267. [PMID: 36202003 DOI: 10.1016/j.ajp.2022.103267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 08/23/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022]
Abstract
The relationship between tobacco smoke and schizophrenia (SZ) is well established. Smoking is hypothesized to alleviate symptoms and reduce the adverse effects of antipsychotic medications in patients with SZ. However, the underlying biological mechanisms by which smoke improves symptoms in SZ remain unclear. The aim of this study was to investigate the effect of smoking on clinical symptoms and antioxidant enzyme activity after risperidone treatment in a 12-week prospective cohort study of drug-naïve first-episode (DNFE) SZ patients. Two hundred and fifteen DNFE patients were recruited and received 12 weeks of risperidone monotherapy. The Positive and Negative Syndrome Scale (PANSS) was used to assess the severity of patient's symptoms at baseline and post-treatment. Plasma GPx activity was also measured at baseline and at the end of 12 weeks. Smokers showed greater improvement in negative symptoms relative to nonsmokers with DNFE SZ. In addition, repeated ANCOVA analysis showed no significant interaction of time and group on GPx activity. Improvement in negative symptoms was not associated with changes in GPx activity. However, in nonsmokers, increased GPx activity was correlated with improvement in positive symptoms.
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Affiliation(s)
- Nan Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Haixia Liu
- Department of Psychiatry, Shandong Mental Health Center, Shandong University, Jinan, China
| | - Jing Yao
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Song Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Meihong Xiu
- Peking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China.
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.
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7
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Zanini BM, Burkert L, Dos Santos FG, Masternak MM, Crespo-Ribeiro JA, Barros CC, Valle SC, Schneider A. The effect of paraoxonase 1 (PON1) gene polymorphisms T(-107)C and L55M and diet composition on serum PON1 activity in women. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2021; 65:787-793. [PMID: 34762786 PMCID: PMC10065380 DOI: 10.20945/2359-3997000000416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the serum activity of PON1 in women according to SNPs L55M and T-107C and diet composition. METHODS Blood and serum samples from 26 women were used. DNA extraction, PCR and digestion with restriction enzymes of the PCR fragment were performed for genotyping the PON1 SNPs T-107C and L55M. Serum PON1 activity was measured in a single time point. Patients completed the semi-quantitative food frequency questionnaire and diet composition was estimated. RESULTS Genotypic distribution for L55M SNP was 56% for the LL genotype, 32% for LM and 12% for MM; for the PON1 C(-107)T SNP it was 28% for the TT genotype, 41% for CT and 31% for CC. Individuals with C and L alleles had higher serum PON1 activity. Combining the two SNPs, we observed that individuals carrying the LL and CC genotypes had twice the activity of carriers of the TT and MM genotypes. Considering food intake, no significant difference was observed between genotypes and intake levels. CONCLUSION PON1 T(-107)C and L55M SNPs exert a strong effect on serum PON1 activity in an additive manner and are more important than diet to predict serum PON1 activity.
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Affiliation(s)
- Bianka Machado Zanini
- Departamento de Nutrição, Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Leticia Burkert
- Departamento de Nutrição, Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | | | - Michal M Masternak
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | | | - Carlos Castilho Barros
- Departamento de Nutrição, Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Sandra Costa Valle
- Departamento de Nutrição, Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Augusto Schneider
- Departamento de Nutrição, Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, RS, Brasil,
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Myeloperoxidase-induced modification of HDL by isolevuglandins inhibits paraoxonase-1 activity. J Biol Chem 2021; 297:101019. [PMID: 34331945 PMCID: PMC8390528 DOI: 10.1016/j.jbc.2021.101019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 07/09/2021] [Accepted: 07/27/2021] [Indexed: 11/21/2022] Open
Abstract
Reduced activity of paraoxonase 1 (PON1), a high-density lipoprotein (HDL)-associated enzyme, has been implicated in the development of atherosclerosis. Post-translational modifications of PON1 may represent important mechanisms leading to reduced PON1 activity. Under atherosclerotic conditions, myeloperoxidase (MPO) is known to associate with HDL. MPO generates the oxidants hypochlorous acid and nitrogen dioxide, which can lead to post-translational modification of PON1, including tyrosine modifications that inhibit PON1 activity. Nitrogen dioxide also drives lipid peroxidation, leading to the formation of reactive lipid dicarbonyls such as malondialdehyde and isolevuglandins, which modify HDL and could inhibit PON1 activity. Because isolevuglandins are more reactive than malondialdehyde, we used in vitro models containing HDL, PON1, and MPO to test the hypothesis that IsoLG formation by MPO and its subsequent modification of HDL contributes to MPO-mediated reductions in PON1 activity. Incubation of MPO with HDL led to modification of HDL proteins, including PON1, by IsoLG. Incubation of HDL with IsoLG reduced PON1 lactonase and antiperoxidation activities. IsoLG modification of recombinant PON1 markedly inhibited its activity, while irreversible IsoLG modification of HDL before adding recombinant PON1 only slightly inhibited the ability of HDL to enhance the catalytic activity of recombinant PON1. Together, these studies support the notion that association of MPO with HDL leads to lower PON1 activity in part via IsoLG-mediated modification of PON1, so that IsoLG modification of PON1 could contribute to increased risk for atherosclerosis, and blocking this modification might prove beneficial to reduce atherosclerosis.
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Kosmas CE, Sourlas A, Guzman E, Kostara CE. Environmental Factors Modifying HDL Functionality. Curr Med Chem 2021; 29:1687-1701. [PMID: 34269662 DOI: 10.2174/0929867328666210714155422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/27/2021] [Accepted: 05/06/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Currently, it has been recognized that High-Density Lipoproteins (HDL) functionality plays a much more essential role in protection from atherosclerosis than circulating HDL-cholesterol (HDL-C) levels per se. Cholesterol efflux from macrophages to HDL, cholesterol efflux capacity (CEC) has been shown to be a key metric of HDL functionality. Thus, quantitative assessment of CEC may be an important tool for the evaluation of HDL functionality, as improvement of HDL function may lead to a reduction of the risk for Cardiovascular disease (CVD). INTRODUCTION Although the cardioprotective action of HDLs is exerted mainly through their involvement in the reverse cholesterol transport (RCT) pathway, HDLs also have important anti-inflammatory, antioxidant, antiaggregatory and anticoagulant properties that contribute to their favorable cardiovascular effects. Certain genetic, pathophysiologic, disease states and environmental conditions may influence the cardioprotective effects of HDL either by inducing modifications in lipidome and/or protein composition or in the enzymes responsible for HDL metabolism. On the other hand, certain healthy habits or pharmacologic interventions may actually favorably affect HDL functionality. METHOD The present review discusses the effects of environmental factors, including obesity, smoking, alcohol consumption, dietary habits, various pharmacologic interventions, as well as aerobic exercise, on HDL functionality. RESULT Experimental and clinical studies or pharmacological interventions support the impact of these environmental factors in the modification of HDL functionality, although the mechanisms that are mediated are poorly understood. CONCLUSION Further research should be conducted to unreal the underlying mechanisms of these environmental factors and to identify new pharmacologic interventions, capable of enhancing CEC, improving HDL functionality and potentially improving cardiovascular risk.
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Affiliation(s)
- Constantine E Kosmas
- Division of Cardiology, Department of Medicine, Montefiore Medical Center, Bronx, NY, United States
| | | | - Eliscer Guzman
- Division of Cardiology, Department of Medicine, Montefiore Medical Center, Bronx, NY, United States
| | - Christina E Kostara
- Laboratory of Clinical Chemistry, Medical Department, School of Health Sciences, Faculty of Medicine, University of Ioannina, 45500 Ioannina, Greece
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Godbole C, Thaker S, Kerkar P, Nadkar M, Gogtay N, Thatte U. Association of PON1 gene polymorphisms and enzymatic activity with risk of coronary artery disease. Future Cardiol 2020; 17:119-126. [PMID: 32583675 DOI: 10.2217/fca-2020-0028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background: The present case-control study evaluated the association of PON1 gene polymorphisms and enzyme activity in the western Indian population. Materials & methods: Angiographically proven coronary artery disease (CAD) formed the cases. PON1 polymorphisms (Q192R, L55M) and enzymatic activity (paraoxonase) were assessed. Results: A total of 502 participants (251 per group) were studied. PON1 Q192R and L55M polymorphisms were not associated with the risk of CAD. Notably, a weak association was observed between Q192R polymorphisms and the risk of CAD. CAD patients had significantly lower PON1 enzymatic activity (U/L) as compared with the controls regardless of the genotype. Conclusion: Low serum PON1 activity was confirmed to be an independent predictor for the risk of CAD.
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Affiliation(s)
- Charuta Godbole
- Department of Clinical Pharmacology, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Saket Thaker
- Department of Clinical Pharmacology, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Prafulla Kerkar
- Department of Cardiology, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Milind Nadkar
- Department of Medicine, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Nithya Gogtay
- Department of Clinical Pharmacology, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Urmila Thatte
- Department of Clinical Pharmacology, Seth G.S. Medical College & KEM Hospital, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
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Can Demirdöğen B, Koçan Akçin C, Göksoy E, Yakar G, Öztepe T, Demirkaya-Budak S, Oflaz S. Paraoxonase 1 (PON1) promoter (−107T/C) and coding region (192Q/R and 55L/M) genetic variations in pseudoexfoliation syndrome and pseudoexfoliative glaucoma risk. Graefes Arch Clin Exp Ophthalmol 2019; 257:2257-2270. [DOI: 10.1007/s00417-019-04408-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/13/2019] [Accepted: 06/29/2019] [Indexed: 02/07/2023] Open
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Moreira EG, Correia DG, Bonifácio KL, Moraes JBD, Cavicchioli FL, Nunes CS, Nunes SOV, Vargas HO, Barbosa DS, Maes M. Lowered PON1 activities are strongly associated with depression and bipolar disorder, recurrence of (hypo)mania and depression, increased disability and lowered quality of life. World J Biol Psychiatry 2019; 20:368-380. [PMID: 28441923 DOI: 10.1080/15622975.2017.1322219] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Objectives: Mood disorders (MDs) frequently co-exist with cardiovascular disease (CVD) and immune-inflammatory and oxidative stress are important shared pathophysiological pathways. Even though there has been an extensive investigation of the enzyme paraoxonase 1 (PON1) as a biomarker of susceptibility for CVD, there are few reports studying PON1 in MDs. The aim of this study was to determine the association between PON1 activities as well as functional genotypes and MD diagnosis, clinical characteristics and outcomes. Methods: PON1 activities and functional genotypes were assayed in 58 bipolar disorder (BD) and 32 major depressed patients (MDD) and compared with 59 controls. Results: Our findings show significantly lower PON1 total and CMPAase activities in MDs, which are partly related to the number of previous depressive and manic episodes. Lowered CMPAase activity is associated with a worse outcome of MDs as indicated by lowered quality of life (WHOQoL-BREF scale) and increased disability in the Sheeham scale. Conclusions: We hypothesise that lowered PON1 total and CMPAase activities may play a role in the pathophysiology of MDs by lowering antioxidant defences thereby increasing the risk of lipid peroxidation and inflammation; lowered inhibition of quorum-sensing lactones thereby increasing bacterial proliferation; and attenuated homocysteine thiolactone catabolism which may trigger immune-inflammatory response and/or induce neurotoxicity.
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Affiliation(s)
| | | | - Kamila Landucci Bonifácio
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil
| | - Juliana Brum de Moraes
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil
| | | | - Carolina Sampaio Nunes
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil
| | | | - Heber Odebrecht Vargas
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil
| | - Décio Sabbatini Barbosa
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil
| | - Michael Maes
- a Graduation Program in Health Sciences , State University of Londrina (UEL) , Londrina , Paraná , Brazil.,c School of Medicine , Deakin University , Geelong , VIC , Australia.,d Department of Psychiatry, Faculty of Medicine , Chulalongkorn University , Bangkok , Thailand.,e Department of Psychiatry , Medical University of Plovdiv , Plovdiv , Bulgaria
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van den Berg EH, Gruppen EG, James RW, Bakker SJL, Dullaart RPF. Serum paraoxonase 1 activity is paradoxically maintained in nonalcoholic fatty liver disease despite low HDL cholesterol. J Lipid Res 2019; 60:168-175. [PMID: 30455362 PMCID: PMC6314263 DOI: 10.1194/jlr.p088997] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/05/2018] [Indexed: 12/18/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is characterized by low HDL cholesterol, but the activity of the HDL-associated antioxidative enzyme paraoxonase-1 (PON-1) remains unclear. To determine the association of PON-1 with suspected NAFLD, we measured serum enzyme activity in 7,622 participants of the Prevention of Renal and Vascular End-Stage Disease cohort. A fatty liver index (FLI) ≥60, a proxy of NAFLD, was present in 2,083 participants (27.3%) and coincided with increased prevalence of T2D, metabolic syndrome (MetS), (central) obesity, elevated triglycerides, and low HDL cholesterol (all P < 0.001). In men and women combined, serum PON-1 activity did not vary according to elevated FLI (P = 0.98), whereas in men with elevated FLI PON-1 activity was increased (P = 0.016). In multivariable linear regression analyses (adjusted for age, sex, T2D, MetS, alcohol use, and smoking), PON-1 activity was unexpectedly associated with elevated FLI (β = 0.083; P < 0.001). In a sensitivity analysis (n = 5,126) that excluded subjects with positive cardiovascular history, impaired estimated glomerular filtration rate, elevated urinary albumin excretion, and drug use, PON-1 activity was also independently associated with elevated FLI (β = 0.045; P = 0.017). These results indicate that PON-1 is paradoxically maintained and may even be increased in NAFLD despite inverse associations with metabolic disorders and low HDL cholesterol.
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Affiliation(s)
- Eline H van den Berg
- Departments of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Departments of Gastroenterology and Hepatology University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Eke G Gruppen
- Departments of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Departments of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Richard W James
- Departments of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Stephan J L Bakker
- Departments of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Robin P F Dullaart
- Departments of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Moreira EG, Boll KM, Correia DG, Soares JF, Rigobello C, Maes M. Why Should Psychiatrists and Neuroscientists Worry about Paraoxonase 1? Curr Neuropharmacol 2019; 17:1004-1020. [PMID: 30592255 PMCID: PMC7052826 DOI: 10.2174/1570159x17666181227164947] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 11/13/2018] [Accepted: 12/20/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Nitro-oxidative stress (NOS) has been implicated in the pathophysiology of psychiatric disorders. The activity of the polymorphic antioxidant enzyme paraoxonase 1 (PON1) is altered in diseases where NOS is involved. PON1 activity may be estimated using different substrates some of which are influenced by PON1 polymorphisms. OBJECTIVES 1) to review the association between PON1 activities and psychiatric diseases using a standardized PON1 substrate terminology in order to offer a state-of-the-art review; and 2) to review the efficacy of different strategies (nutrition, drugs, lifestyle) to enhance PON1 activities. METHODS The PubMed database was searched using the terms paraoxonase 1 and psychiatric diseases. Moreover, the database was also searched for clinical trials investigating strategies to enhance PON1 activity. RESULTS The studies support decreased PON1 activity as determined using phenylacetate (i.e., arylesterase or AREase) as a substrate, in depression, bipolar disorder, generalized anxiety disorder (GAD) and schizophrenia, especially in antipsychotic-free patients. PON1 activity as determined with paraoxon (i.e., POase activity) yields more controversial results, which can be explained by the lack of adjustment for the Q192R polymorphism. The few clinical trials investigating the influence of nutritional, lifestyle and drugs on PON1 activities in the general population suggest that some polyphenols, oleic acid, Mediterranean diet, no smoking, being physically active and statins may be effective strategies that increase PON1 activity. CONCLUSION Lowered PON1 activities appear to be a key component in the ongoing NOS processes that accompany affective disorders, GAD and schizophrenia. Treatments increasing attenuated PON1 activity could possibly be new drug targets for treating these disorders.
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Affiliation(s)
- Estefania Gastaldello Moreira
- Address correspondence to this author at the Departamento de Ciencias Fisiologicas, Lab. 6; Centro de Ciências Biologicas, CEP 86057-970, Londrina, PR Brazil; Tel: +55 (43) 3371-4307; E-mail:
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15
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Gruppen EG, Bakker SJL, James RW, Dullaart RPF. Serum paraoxonase-1 activity is associated with light to moderate alcohol consumption: the PREVEND cohort study. Am J Clin Nutr 2018; 108:1283-1290. [PMID: 30376039 DOI: 10.1093/ajcn/nqy217] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/06/2018] [Indexed: 12/14/2022] Open
Abstract
Background Paraoxonase-1 (PON-1) is a high-density lipoprotein (HDL)-associated enzyme with antioxidative properties, which may protect against the development of cardiovascular disease. Alcohol consumption increases HDL cholesterol, but the extent to which alcohol consumption gives rise to higher serum PON-1 activity is uncertain. Objective In a population-based study, we determined the relation of serum PON-1 activity with alcohol consumption when taking account of HDL cholesterol and apolipoprotein A-I (apoA-I), its major apolipoprotein. Design A cross-sectional study was performed in 8224 participants of the Prevention of Renal and Vascular End-Stage Disease (PREVEND) cohort. Alcohol consumption was categorized as 1) no/rarely (25.3%); 2) 0.1-10 g/d (49.3%); 3) 10-30 g/d (20.1%); and 4) >30 g/d (5.2%) with 1 drink equivalent to 10 g alcohol. Serum PON-1 activity was measured as its arylesterase activity (phenyl acetate as substrate). Results Median serum PON-1 activity was 50.8, 53.1, 54.4, and 55.7 U/L in the 4 categories of alcohol consumption, respectively (P < 0.001). Its increase paralleled the increments in HDL cholesterol and apoA-I. Notably, there was no further increase in PON-1 activity, HDL cholesterol, and apoA-I when alcohol consumption was increased from 10-30 g/d to >30 g/d. Multivariable linear regression analysis demonstrated that PON-1 activity was related to alcohol consumption independently from clinical covariates, high sensitivity C-reactive protein, and lipid concentrations, including HDL cholesterol (P < 0.001 for each category of alcohol consumption with no alcohol consumption as the reference category). Notably, as inferred from standardized β-coefficients, there was no difference in PON-1 activity between 10-30 g alcohol/d and >30 g alcohol/d. Conclusions Alcohol consumption is associated with an increase in serum PON-1 activity, but its effect seems to reach a plateau with alcohol consumption of 10-30 g/d.
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Affiliation(s)
- Eke G Gruppen
- Departments of Endocrinology.,Nephrology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Stephan J L Bakker
- Nephrology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Richard W James
- Department of Internal Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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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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Eisenga MF, Kieneker LM, Touw DJ, Nolte IM, van der Meer P, Huls G, Gaillard CAJM, Bakker SJL. Active Smoking and Hematocrit and Fasting Circulating Erythropoietin Concentrations in the General Population. Mayo Clin Proc 2018; 93:337-343. [PMID: 29502563 DOI: 10.1016/j.mayocp.2018.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/07/2017] [Accepted: 01/03/2018] [Indexed: 01/09/2023]
Abstract
Cigarette smoking continues to be one of the major risk factors for increased morbidity and mortality worldwide. Among many adverse health effects, smoking can induce erythrocytosis, which is commonly believed to result from elevated serum erythropoietin (EPO) levels. Currently, however, this notion is only alleged, without data available to substantiate it. Hence, we analyzed data from the Prevention of Renal and Vascular End-Stage Disease study, a prospective population-based cohort study. Smoking behavior was quantified as number of cigarettes smoked per day and as 24-hour urinary cotinine excretion levels, an objective and quantitative measure of nicotine exposure. In 6808 community-dwelling participants, the prevalence of nonsmokers, former smokers, and current smokers were 29%, 43%, and 28%, respectively. Hematocrit levels were higher in current smokers (41.4%±3.6%) than in nonsmokers (40.3%±3.6%) (P<.001). In contrast, median EPO levels were lower in current smokers (7.5 IU/L; interquartile range [IQR], 5.7-9.6 IU/L) than in nonsmokers (7.9 IU/L; IQR, 6.0-10.7 IU/L) (P<.001). In multivariate linear regression analysis, current smoking, compared with nonsmoking, was independently positively associated with hematocrit levels (β=.12; P<.001) and hemoglobin levels (β=.11; P<.001), but inversely associated with EPO levels (β=-.09; P<.001). In sensitivity analyses, we observed a dose-dependent inverse association of smoking exposure reflected by 24-hour urinary cotinine excretion levels with EPO levels. Contrary to common belief, we identified that in the general population, smoking is inversely associated with EPO levels. Future mechanistic insight is needed to unravel the currently identified association, and if reproduced in other studies, guidelines for diagnosis of secondary erythrocytosis may need to be revisited.
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Affiliation(s)
- Michele F Eisenga
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Lyanne M Kieneker
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Daan J Touw
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ilja M Nolte
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerwin Huls
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Carlo A J M Gaillard
- Department of Internal Medicine and Dermatology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Stephan J L Bakker
- Department of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Carballo S, Pfenniger A, Carballo D, Garin N, James RW, Mach F, Shah D, Kwak BR. Differential Association of Cx37 and Cx40 Genetic Variants in Atrial Fibrillation with and without Underlying Structural Heart Disease. Int J Mol Sci 2018; 19:E295. [PMID: 29351227 PMCID: PMC5796240 DOI: 10.3390/ijms19010295] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/12/2018] [Accepted: 01/16/2018] [Indexed: 12/17/2022] Open
Abstract
Atrial fibrillation (AF) appears in the presence or absence of structural heart disease. The majority of foci causing AF are located near the ostia of pulmonary veins (PVs), where cardiomyocytes and vascular smooth muscle cells interdigitate. Connexins (Cx) form gap junction channels and participate in action potential propagation. Genetic variants in genes encoding Cx40 and Cx37 affect their expression or function and may contribute to PV arrhythmogenicity. DNA was obtained from 196 patients with drug-resistant, symptomatic AF with and without structural heart disease, who were referred for percutaneous catheter ablation. Eighty-nine controls were matched for age, gender, hypertension, and BMI. Genotyping of the Cx40 -44G > A, Cx40 +71A > G, Cx40 -26A > G, and Cx37 1019C > T polymorphisms was performed. The promoter A Cx40 polymorphisms (-44G > A and +71A > G) showed no association with non-structural or structural AF. Distribution of the Cx40 promoter B polymorphism (-26A > G) was different in structural AF when compared to controls (p = 0.03). There was no significant difference with non-structural AF (p = 0.50). The distribution of the Cx37 1019C > T polymorphism was different in non-structural AF (p = 0.03) but not in structural AF (p = 0.08) when compared to controls. Our study describes for the first time an association of drug-resistant non-structural heart disease AF with the Cx37 1019C > T gene polymorphism. We also confirmed the association of the Cx40 - 26G > A polymorphism in patients with AF and structural disease.
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Affiliation(s)
- Sebastian Carballo
- Service of General Internal medicine, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - Anna Pfenniger
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland.
| | - David Carballo
- Service of Cardiology, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - Nicolas Garin
- Service of General Internal medicine, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - Richard W James
- Service of Endocrinology and Diabetes, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - François Mach
- Service of Cardiology, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - Dipen Shah
- Service of Cardiology, University Hospitals of Geneva, 1211 Geneva, Switzerland.
| | - Brenda R Kwak
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland.
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Bacchetti T, Ferretti G, Sahebkar A. The role of paraoxonase in cancer. Semin Cancer Biol 2017; 56:72-86. [PMID: 29170064 DOI: 10.1016/j.semcancer.2017.11.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/20/2017] [Accepted: 11/18/2017] [Indexed: 12/15/2022]
Abstract
The paraoxonase (PON) gene family includes three proteins, PON1, PON2 and PON3. PON1 and PON3 are both associated with high-density lipoprotein (HDL) particles and exert anti-oxidant and anti-inflammatory properties. PON2 and PON3 are intracellular enzymes which modulate mitochondrial superoxide anion production and endoplasmic reticulum (ER) stress-induced apoptosis. The pleiotropic roles exerted by PONs have been mainly investigated in cardiovascular and neurodegenerative diseases. In recent years, overexpression of PON2 and PON3 has been observed in cancer cells and it has been proposed that both enzymes could be involved in tumor survival and stress resistance. Moreover, a lower activity of serum PON1 has been reported in cancer patients. This review summarizes literature data on the role of PONs in human cancers and their potential role as a target for antitumor drugs.
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Affiliation(s)
- Tiziana Bacchetti
- Department of Life and Environmental Sciences (DiSVA), Polytechnic University of Marche, Ancona, Italy.
| | - Gianna Ferretti
- Department of Clinical Science and Odontostomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Relationship between rs854560 PON1 Gene Polymorphism and Tobacco Smoking with Coronary Artery Disease. DISEASE MARKERS 2017; 2017:1540949. [PMID: 29118461 PMCID: PMC5651137 DOI: 10.1155/2017/1540949] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/25/2017] [Accepted: 09/14/2017] [Indexed: 02/04/2023]
Abstract
Paraoxonase-1 (PON1) is the antioxidant marker of high-density lipoproteins protecting against atherosclerosis and coronary artery disease (CAD) phenotype. The purpose of the present study was to determine whether the PON1 gene rs854560 polymorphism (163T>A) is associated with CAD in Polish population. rs854560 was genotyped in 494 subjects: 248 patients with premature CAD and 246 blood donors as a control. We found that the risk of CAD was significantly higher in TT homozygotes than in A allele carriers (OR = 1.87, p = 0.041). The synergistic effect between the TT genotype and cigarette smoking was observed (SIM = 9.81; SI = 14.70). The relative increase in risk from interaction between factors was over 37 (RERI = 36.13). The PON1 polymorphism did not modulate the risk of CAD in response to exposure to other traditional risk factors. In conclusion, the rs854560 polymorphism may modulate the risk of CAD in response to cigarette smoking in Polish population. Carriers of TT genotype seem to be particularly at risk of CAD, when exposed to cigarette smoking.
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Moheimani RS, Bhetraratana M, Peters KM, Yang BK, Yin F, Gornbein J, Araujo JA, Middlekauff HR. Sympathomimetic Effects of Acute E-Cigarette Use: Role of Nicotine and Non-Nicotine Constituents. J Am Heart Assoc 2017; 6:JAHA.117.006579. [PMID: 28931527 PMCID: PMC5634299 DOI: 10.1161/jaha.117.006579] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Chronic electronic (e) cigarette users have increased resting cardiac sympathetic nerve activity and increased susceptibility to oxidative stress. The purpose of the present study is to determine the role of nicotine versus non-nicotine constituents in e-cigarette emissions in causing these pathologies in otherwise healthy humans. METHODS AND RESULTS Thirty-three healthy volunteers who were not current e-cigarette or tobacco cigarette smokers were studied. On different days, each participant used an e-cigarette with nicotine, an e-cigarette without nicotine, or a sham control. Cardiac sympathetic nerve activity was determined by heart rate variability, and susceptibility to oxidative stress was determined by plasma paraoxonase activity. Following exposure to the e-cigarette with nicotine, but not to the e-cigarette without nicotine or the sham control, there was a significant and marked shift in cardiac sympathovagal balance towards sympathetic predominance. The decrease in high-frequency component and the increases in the low-frequency component and the low-frequency to high-frequency ratio were significantly greater following exposure to the e-cigarette with nicotine compared with exposure to the e-cigarette without nicotine or to sham control. Oxidative stress, as estimated by plasma paraoxonase, did not increase following any of the 3 exposures. CONCLUSIONS The acute sympathomimetic effect of e-cigarettes is attributable to the inhaled nicotine, not to non-nicotine constituents in e-cigarette aerosol, recapitulating the same heart rate variability pattern associated with increased cardiac risk in multiple populations with and without known cardiac disease. Evidence of oxidative stress, as estimated by plasma paraoxonase activity, was not uncovered following acute e-cigarette exposure.
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Affiliation(s)
| | - May Bhetraratana
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Kacey M Peters
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Benjamin K Yang
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Fen Yin
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Jeffrey Gornbein
- Department of Biomathematics, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Jesus A Araujo
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.,Department of Environmental Health Sciences, School of Public Health, Los Angeles, CA
| | - Holly R Middlekauff
- Division of Cardiology Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
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Hallit S, Zoghbi M, Hallit R, Youssef L, Costantine R, Kheir N, Salameh P. Effect of exclusive cigarette smoking and in combination with waterpipe smoking on lipoproteins. J Epidemiol Glob Health 2017; 7:269-275. [PMID: 29110868 PMCID: PMC7384572 DOI: 10.1016/j.jegh.2017.08.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/19/2017] [Accepted: 08/23/2017] [Indexed: 12/03/2022] Open
Abstract
Objective: A significant increase in total cholesterol and LDL-C is well shown in tobacco users, as compared to non-tobacco users. The additive effects of waterpipe and cigarette smoking on LDL levels have not been studied. The study’s objective was to assess the correlation between cigarette smoking and LDL levels in Lebanese cigarette smokers and to check the interaction effect of waterpipe and cigarette smoking on LDL levels. Methods: This cross-sectional study was conducted between October 2016 and February 2017 in 4 different laboratories, enrolling 308 patients (188 non-smokers, 105 cigarette smokers, 15 previous smokers). Results: Current cigarette smoking (Beta = 25.57; p < 0.0001) was significantly associated with higher LDL levels and higher total cholesterol levels (Beta = 53.29; p < 0.0001) in exclusive cigarette smokers. Among current cigarette smokers who were current waterpipe smokers, a significant increase in LDL level was observed relative to current cigarette smokers who were not waterpipe smokers (Beta = 66.64 vs Beta = 37.37; p < 0.0001). Conclusion: Among Lebanese current cigarette smokers, LDL levels increased relative to nonsmokers, consistent with findings in other populations. In addition, among Lebanese current cigarette smokers, current waterpipe smoking might increase adverse lipid profiles associated with adverse coronary effects more than cigarette smoking alone. The direct cause responsible for these observed variations in our study remains unidentified, with the hope that future research will reveal it.
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Affiliation(s)
- Souheil Hallit
- Lebanese University, Faculty of Pharmacy, Beirut, Lebanon; Saint-Joseph University, Faculty of Pharmacy, Beirut, Lebanon; Holy Spirit University of Kaslik, Faculty of Medicine and Medical Sciences, Kaslik, Lebanon; Research Department, Psychiatric Hospital of the Cross, P.O. Box 60096, Jal Eddib, Lebanon; Occupational Health Environment Research Team, U1219 BPH Bordeaux Population Health Research Center Inserm - Université de Bordeaux, France.
| | - Marouan Zoghbi
- Research Department, Psychiatric Hospital of the Cross, P.O. Box 60096, Jal Eddib, Lebanon; Saint-Joseph University, Faculty of Medicine, Beirut, Lebanon
| | - Rabih Hallit
- Holy Spirit University of Kaslik, Faculty of Medicine and Medical Sciences, Kaslik, Lebanon
| | - Lara Youssef
- Department of Nursing and Health Sciences, Notre-Dame University, Zouk, Lebanon
| | - Rachelle Costantine
- Holy Spirit University of Kaslik, Department of Agronomic Sciences, Kaslik, Lebanon
| | - Nelly Kheir
- Lebanese University, Faculty of Sciences 2, Fanar, Lebanon
| | - Pascale Salameh
- Lebanese University, Faculty of Pharmacy, Beirut, Lebanon; Lebanese University, Faculty of Medicine, Beirut, Lebanon
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Bizoń A, Milnerowicz H. The effect of passive and active exposure to tobacco smoke on lipid profile parameters and the activity of certain membrane enzymes in the blood of women in the first trimester of pregnancy. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 53:74-80. [PMID: 28505474 DOI: 10.1016/j.etap.2017.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/19/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
The effect of tobacco smoke on lipid peroxidation, the lipid profile and membrane-bound enzymatic activity in the first trimester of pregnancy was investigated. In the plasma of women with active exposure to tobacco smoke, we have found increased lipid peroxidation and higher total concentrations of cholesterol, triglycerides and low-density lipoproteins in the blood, as well as a decreased concentration of high-density lipoproteins. A higher concentration of low-density lipoproteins and a lower concentration of high-density lipoproteins were also found in the plasma of passive smokers. In contrast, women who smoked before pregnancy had only a higher low-density lipoprotein concentration. In the group of active and passive smoking women, lower arylesterase and phosphotriesterase activities of paraoxonase were observed, while the lactonase activity of paraoxonase decreased only in the group of active smoking women. In women with active exposure to tobacco smoke, a higher activity level of alanine aminopeptidase and γ-glutamyltransferase in the plasma was found. It is important to monitor the lipid profile during pregnancy, especially when exposure to tobacco smoke occurs.
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Affiliation(s)
- Anna Bizoń
- Department of Biomedical and Environmental Analysis, Wroclaw Medical University, Wrocław, Poland.
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analysis, Wroclaw Medical University, Wrocław, Poland
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KAUR GURPREET, JAIN AK, SINGH SANDEEP. CYP/PON genetic variations as determinant of organophosphate pesticides toxicity. J Genet 2017; 96:187-201. [DOI: 10.1007/s12041-017-0741-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Araoud M, Neffeti F, Douki W, Kenani A, Najjar MF. Development of an automated method for the determination of human paraoxonase1 activity. ASIAN BIOMED 2017. [DOI: 10.5372/1905-7415.0502.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background: Human plasma paraoxonase1 (PON1) is an esterase catalyzing the hydrolysis of organophosphorus pesticides and other xenobiotics. The aims of this study were to develop a rapid method to determinate PON1 activity, evaluate some interference, and study the influence of storage temperature on PON1 activity assay.
Methods: Measurement of PON1 activity was performed for 369 samples by measuring the hydrolysis of paraoxon using a spectrophotometric method adapted on konelab 30 ⃞.
Results: The developed method facilitates the determination of PON1 activity at the rate of more than 200 samples per hour, and it is linear between 2 and 900 IU/L. Intra and inter-assay imprecision coefficients of variation were 2% and 5% respectively. PON1 activity in serum was correlated with those in heparinized plasma (r = 0.994, p < 0.001) and in plasma/EDTA (r = 0.962, p < 0.001). The mean inhibition of the PON1 activity was, by EDTA/K3, 41 ± 10 %. There was not significant PON1 activity variation after 40 days of storage at -20°C or at +4 ⃞ C. There were no substantial interferences from haemoglobin, jaundice and hyperlipidemia.
Conclusion: The developed method is reliable, reproducible, and suitable. It can also be performed on heparinized plasma for the determination of PON1 activity. Hence, it may be useful for assaying PON1 activity in several intoxications such as organophosphorus, sarin, and soman nerve agents.
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Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry, Faculty of Medicine of Monastir, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia Tunisia
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Fadoua Neffeti
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Wahiba Douki
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry, Faculty of Medicine of Monastir, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
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Merwin SJ, Obis T, Nunez Y, Re DB. Organophosphate neurotoxicity to the voluntary motor system on the trail of environment-caused amyotrophic lateral sclerosis: the known, the misknown, and the unknown. Arch Toxicol 2017; 91:2939-2952. [PMID: 28070599 DOI: 10.1007/s00204-016-1926-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/20/2016] [Indexed: 12/12/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is the most common adult-onset paralytic disorder. It is characterized by progressive degeneration of the motor neurons controlling voluntary movement. The underlying mechanisms remain elusive, a fact that has precluded development of effective treatments. ALS presents as a sporadic condition 90-95% of the time, i.e., without familial history or obvious genetic mutation. This suggests that ALS has a strong environmental component. Organophosphates (OPs) are prime candidate neurotoxicants in the etiology of ALS, as exposure to OPs was linked to higher ALS incidence among farmers, soccer players, and Gulf War veterans. In addition, polymorphisms in paraoxonase 1, an enzyme that detoxifies OPs, may increase individual vulnerability both to OP poisoning and to the risk of developing ALS. Furthermore, exposure to high doses of OPs can give rise to OP-induced delayed neuropathy (OPIDN), a debilitating condition akin to ALS characterized by similar motor impairment and paralysis. The question we pose in this review is: "what can we learn from acute exposure to high doses of neurotoxicants (OPIDN) that could help our understanding of chronic diseases resulting from potentially decades of silent exposure (ALS)?" The resemblances between OPIDN and ALS are striking at the clinical, etiological, neuropathological, cellular, and potentially molecular levels. Here, we critically present available evidence, discuss current limitations, and posit future research. In the search for the environmental origin of ALS, OPIDN offers an exciting trail to follow, which can hopefully lead to the development of novel strategies to prevent and cure these dreadful disorders.
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Affiliation(s)
- Samantha J Merwin
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA.,NIEHS Center for Environmental Health Sciences in Northern Manhattan, Columbia University, New York, NY, 10032, USA.,Center for Motor Neuron Biology and Disease, Columbia University, New York, NY, 10032, USA
| | - Teresa Obis
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA.,NIEHS Center for Environmental Health Sciences in Northern Manhattan, Columbia University, New York, NY, 10032, USA.,Center for Motor Neuron Biology and Disease, Columbia University, New York, NY, 10032, USA
| | - Yanelli Nunez
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA.,NIEHS Center for Environmental Health Sciences in Northern Manhattan, Columbia University, New York, NY, 10032, USA.,Center for Motor Neuron Biology and Disease, Columbia University, New York, NY, 10032, USA.,Toxicology Ph.D. Program, Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Diane B Re
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA. .,NIEHS Center for Environmental Health Sciences in Northern Manhattan, Columbia University, New York, NY, 10032, USA. .,Center for Motor Neuron Biology and Disease, Columbia University, New York, NY, 10032, USA. .,, 722 W 168th street Suite 1107B, New York, NY, 10032, USA.
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Kahraman FU, Torun E, Osmanoğlu NK, Oruçlu S, Özer ÖF. Serum oxidative stress parameters and paraoxonase-1 in children and adolescents exposed to passive smoking. Pediatr Int 2017; 59:68-73. [PMID: 27337344 DOI: 10.1111/ped.13073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 06/01/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND Exposure to secondhand smoke is too common in many countries. The mechanism of the detrimental effects of passive smoking on childhood health, however, is poorly described. The purpose of this study was therefore to examine the effect of passive smoking on total antioxidant status (TAS), total oxidant status (TOS), and paraoxonase-1 in children compared with healthy non-passive smokers. METHODS This study included 40 children and adolescents passively exposed to cigarette smoke (as verified on urine cotinines) and 40 age- and gender-matched healthy controls not regularly exposed to cigarette smoke. TAS, TOS, and paraoxonase-1 were all measured, and the oxidative stress index (OSI) calculated for each child to determine the degree of oxidative stress. RESULTS Age and gender distribution were not statistically different between the two groups (P = 0.619 and 0.712, respectively). Urine cotinine/creatinine was significantly higher in the passive smoking group (127.89 ± 57.14 ng/mL) compared with the controls (5.05 ± 16.66 ng/mL; P < 0.001). TAS was not different between the two groups (P = 0.767), but TOS and OSI were significantly higher for the passive smoke-exposed children (P < 0.001), and serum paraoxonase-1 was significantly lower than in the controls (P = 0.047). CONCLUSIONS Secondhand smoke exposure is associated with increased oxidative stress and decreased paraoxonase-1 without any change in antioxidant status.
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Affiliation(s)
| | - Emel Torun
- Department of Pediatrics, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | | | - Suera Oruçlu
- Department of Pediatrics, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | - Ömer Faruk Özer
- Department of Biochemistry, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
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Martínez-Quintana E, Rodríguez-González F, Medina-Gil JM, Garay-Sánchez P, Tugores A. Paraoxonase 1 (Q192R) gene polymorphism, coronary heart disease and the risk of a new acute coronary event. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2016; 29:1-6. [PMID: 27863895 DOI: 10.1016/j.arteri.2016.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Paraoxonase 1 (PON1) plays a major role in the oxidation of low density lipoprotein and in the prevention of coronary atherogenesis. In this context, coding region polymorphisms of PON1 gene, responsible for the enzyme activity, has become of interest as a marker for atherogenesis. METHODS A study and follow-up was conducted on 529 patients with an acute coronary event in order to assess the association between the PON1 Q192R (rs662;A/G) polymorphism, the type of acute coronary syndrome, cardiovascular risk factors (arterial hypertension, diabetes mellitus, dyslipidaemia, and smoking), the extent and severity of coronary atherosclerosis, and the medium-term clinical follow-up. RESULTS The QQ genotype was found in 245 (46.3%) patients, with 218 (41.2%) patients showing the QR genotype, and 66 (14.5%) patients had the RR genotype. No significant differences were found between the QQ and QR/RR genotypes as regards the clinical characteristics, the analytical data, and the angiographic variables. Similarly, Kaplan-Meier survival analysis showed no significant differences in presenting with a new acute coronary event (p=0.598), cardiac mortality (p=0.701), stent thrombosis (p=0.508), or stent re-stenosis (p=0.598) between QQ and QR/RR genotypes during the follow-up period (3.3±2.2 years). CONCLUSIONS In patients with an acute coronary syndrome, the PON1 Q192R genotypes did not influence the risk of suffering a new acute coronary event during the medium-term follow-up.
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Affiliation(s)
- Efrén Martínez-Quintana
- Servico de Cardiología, Hospital Universitario Insular-Materno Infantil, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
| | | | - José María Medina-Gil
- Servico de Cardiología, Hospital Universitario Insular-Materno Infantil, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Paloma Garay-Sánchez
- Unidad de Investigación, Hospital Universitario Insular-Materno Infantil, Las Palmas de Gran Canaria, Spain
| | - Antonio Tugores
- Unidad de Investigación, Hospital Universitario Insular-Materno Infantil, Las Palmas de Gran Canaria, Spain
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Sun J, Qian Y, Jiang Y, Chen J, Dai J, Jin G, Wang J, Hu Z, Liu S, Shen C, Shen H. Association of KCTD10, MVK, and MMAB polymorphisms with dyslipidemia and coronary heart disease in Han Chinese population. Lipids Health Dis 2016; 15:171. [PMID: 27716295 PMCID: PMC5050677 DOI: 10.1186/s12944-016-0348-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 09/30/2016] [Indexed: 12/31/2022] Open
Abstract
Background Several genome-wide association studies have discovered novel loci at chromosome 12q24, which includes mevalonate kinase (MVK), methylmalonic aciduria (cobalamin deficiency) cbIB type (MMAB), and potassium channel tetramerization domain-containing 10 (KCTD10), all of which influence HDL-cholesterol concentrations. However, there are few reports on the associations between these polymorphisms and HDL-C concentrations in Chinese population. This study aimed to evaluate the associations between functional polymorphisms in three genes (MVK, MMAB and KCTD10) and HDL-C concentrations, as well as coronary heart disease (CHD) susceptibility in Chinese individuals. Methods We systematically selected and genotyped 18 potentially functional polymorphisms in MVK, MMAB and KCTD10 by using the TaqMan OpenArray Genotyping System in a Chinese population including 399 dyslipidemia cases, 697 CHD cases and 465 controls. Multivariate logistic regression analyses were performed to estimate the relationship between the genotypes and dyslipidemia, CHD risk with adjustment of relevant confounders. Results Among six polymorphisms showing significant associations with dyslipidemia, the minor alleles of rs11066782 in KCTD10, rs11613718 in KCTD10 and rs11067233 in MMAB were significantly associated with a decreased risk of CHD (additive model: OR = 0.71, 95 % CI = 0.53–0.97, P = 0.029 for rs11066782; OR = 0.73, 95 % CI = 0.54–0.99, P = 0.044 for rs11613718 and OR = 0.57, 95 % CI = 0.40–0.80, P = 0.001 for rs11067233). Further combined analysis showed that individuals carrying “3-4” favorable alleles presented a 62 % (OR = 0.38, 95 % CI = 0.21–0.66) decreased risk of CHD compared with those carrying “0–2” favorable alleles. Conclusions These findings suggest that rs11066782 in KCTD10, rs11613718 in KCTD10 and rs11067233 in MMAB may contribute to the susceptibility of CHD by altering plasma HDL-C levels in Han Chinese. Electronic supplementary material The online version of this article (doi:10.1186/s12944-016-0348-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jie Sun
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Yun Qian
- Department of Chronic Non-communicable Disease Control, Wuxi Center for Disease Control and Prevention, Wuxi, 214023, China
| | - Yue Jiang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Jiaping Chen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Juncheng Dai
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Guangfu Jin
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Jianming Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China.,Department of Social Medicine and Health Education, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Zhibin Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
| | - Sijun Liu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China. .,Department of Social Medicine and Health Education, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China.
| | - Chong Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China.
| | - Hongbing Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian AV., Nanjing, Jiangsu, 211166, China
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Paraoxsonase2 (PON2) and oxidative stress involvement in pomegranate juice protection against cigarette smoke-induced macrophage cholesterol accumulation. Chem Biol Interact 2016; 259:394-400. [PMID: 27163848 DOI: 10.1016/j.cbi.2016.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 04/15/2016] [Accepted: 05/05/2016] [Indexed: 12/08/2022]
Abstract
Exposure to cigarette smoke (CS) promotes various stages of atherosclerosis development. Macrophages are the predominant cells in early atherogenesis, and the polyphenolic-rich pomegranate juice (PJ) is known for its protective role against macrophage atherogenicity. The aim of the current study was to examine the atherogenic effects of CS on macrophages, and to evaluate the protective effects of PJ against CS-induced macrophage atherogenicity. Murine J774A.1 macrophages were treated with CS-exposed medium in the absence or presence of PJ. Parameters of lipid peroxidation in CS-exposed medium were measured by the lipid peroxides and thiobarbituric acid reactive substances (TBARS) assays. Atherogenicity of macrophages incubated with increasing concentrations of CS-exposed medium was assessed by cytotoxicity, oxidative stress determined by generation of reactive oxygen species (ROS) using DCFH-DA, activity of the cellular anti-oxidant paraoxonase2 (PON2), macrophage accumulation of cholesterol and triglycerides, as well as through high density lipoprotein (HDL)-mediated cholesterol efflux from the cells. CS exposure resulted in significant and dose-dependent increases in lipid peroxides and TBARS medium levels (up to 3 and 8-fold, respectively). Incubation of macrophages with CS-exposed medium resulted in dose-dependent increases in macrophage damage/injury (up to 6-fold), intracellular ROS levels (up to 31%), PON2 activity (up to 2-fold), and macrophage cholesterol content (up to 24%). The latter might be explained by reduced HDL-mediated cholesterol efflux from CS-exposed macrophages (by 21%). PJ protected macrophages from CS-induced increases in intracellular ROS levels and cholesterol accumulation, as well as the attenuated efflux of cholesterol. These data indicate that CS stimulates macrophage oxidation and activates PON2 as a possible compensatory response to the oxidative burden. CS impairs HDL-mediated cholesterol efflux from macrophages leading to cellular accumulation of cholesterol. The atherogenic and oxidative effects of CS are attenuated by PJ, a polyphenolic-rich anti-oxidant.
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Ding X, Wang R, Liu L, Yu Q, Wang Z, Ma Z, Zhu Q. Interaction between peroxisome proliferator-activated receptor gamma and smoking on cardiovascular disease. Physiol Behav 2016; 153:28-32. [DOI: 10.1016/j.physbeh.2015.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 09/06/2015] [Accepted: 10/12/2015] [Indexed: 02/07/2023]
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PON-1 Activity and Plasma 8-Isoprostane Concentration in Patients with Angiographically Proven Coronary Artery Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:5136937. [PMID: 26697134 PMCID: PMC4677230 DOI: 10.1155/2016/5136937] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 01/11/2023]
Abstract
The aim of the study was to estimate association of the extent of angiographically proven coronary artery disease (CAD) with plasma 8-isoprostane F2 (8-iso-PGF2α) levels as a reliable marker of lipid peroxidation and serum activity of paraoxonase-1, which demonstrates the ability to protect against lipid oxidation. The study included 105 patients with angiographically documented CAD (CAD+) and 45 patients with negative results of coronary angiography (CAD−). Compared to the control group CAD+ patients were characterized by increased 8-iso-PGF2α levels (P = 0.007) and reduced activity of PON-1 towards paraoxon (PONase, P = 0.002) and phenyl acetate (AREase, P = 0.037). Univariate correlation analysis indicated that 8-iso-PGF2α concentrations were positively associated with the severity of CAD as evaluated by the Gensini score (R = 0.41, P < 0.001) while PONase activity (R = −0.26, P < 0.05) and AREase activity (R = −0.23, P < 0.05) were inversely correlated with CAD severity. PONase activity and 8-iso-PGF2α concentration remained independent determinant of atherosclerosis severity in multiple linear regression after adjusting for age, gender, smoking habits, hypertension, type 2 diabetes, statin therapy, and HDL-C and TAG concentration (β coefficients −0.267; P < 0.05 and 0.368; P < 0.001, resp.). The results suggest that PON-1 activity and 8-iso-PGF2α concentration are associated with the presence and extent of coronary stenosis and may be considered additional markers of coronary artery disease.
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Ferretti G, Bacchetti T, Sahebkar A. Effect of statin therapy on paraoxonase-1 status: A systematic review and meta-analysis of 25 clinical trials. Prog Lipid Res 2015; 60:50-73. [DOI: 10.1016/j.plipres.2015.08.003] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/08/2015] [Accepted: 08/30/2015] [Indexed: 12/20/2022]
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Bizoń A, Kepinska M, Snacki K, Milnerowicz H. The impact of environmental and biological factors on paraoxonase 1 and γ-glutamyltranspeptydase activities in the blood of smelters. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2015; 26:222-238. [PMID: 26418915 DOI: 10.1080/09603123.2015.1089533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Disorders of paraoxonase and γ-glutamyltranspeptydase activities can induce development of the atherosclerotic process. The aim of the study was to examine the effect of occupational exposure to heavy metals, tobacco smoke and alcohol consumption on the activities of paraoxonase and γ-glutamyltranspeptydase as well as glutathione concentration. We have observed reduced paraoxonase activity and higher γ-glutamyltranspeptydase activity in serum of smelters when compared to control groups. In the blood of smoking smelters was demonstrated a negative correlation between paraoxonase activity and BMI value as well as between paraoxonase activity and tobacco smoke and consumption of 40% alcohol. Also, negative correlation was found for the activity of paraoxonase and glutathione concentration as well as γ-glutamyltranspeptydase activity. Higher γ-glutamyltranspeptydase activity and lower paraoxonase activity in the serum of smelters exposed to heavy metals and tobacco smoke can cause disorders in functioning of the body.
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Affiliation(s)
- Anna Bizoń
- a Faculty of Pharmacy, Department of Biomedical and Environmental Analysis , Wroclaw Medical University , Wrocław , Poland
| | - Marta Kepinska
- a Faculty of Pharmacy, Department of Biomedical and Environmental Analysis , Wroclaw Medical University , Wrocław , Poland
| | - Krzysztof Snacki
- b Faculty of Pharmacy, Students Scientific Society at the Department of Biomedical Environmental Analysis , Wroclaw Medical University , Wrocław , Poland
| | - Halina Milnerowicz
- a Faculty of Pharmacy, Department of Biomedical and Environmental Analysis , Wroclaw Medical University , Wrocław , Poland
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Amine K, Miri L, Naimi A, Saile R, El Kharrim A, Mikou A, Kettani A. Molecular Dynamics Approach in the Comparison of Wild-Type and Mutant Paraoxonase-1 Apoenzyme Form. Bioinform Biol Insights 2015; 9:129-40. [PMID: 26417201 PMCID: PMC4571988 DOI: 10.4137/bbi.s25626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/15/2015] [Accepted: 05/17/2015] [Indexed: 11/05/2022] Open
Abstract
There is some evidence linking the mammalian paraoxonase-1 (PON1) loops (L1 and L2) to an increased flexibility and reactivity of its active site with potential substrates. The aim of this work is to study the structural, dynamical, and functional effects of the most flexible regions close to the active site and to determine the impact of mutations on the protein. For both models, wild-type (PON1wild) and PON1 mutant (PON1mut) models, the L1 loop and Q/R and L/M mutations were constructed using MODELLER software. Molecular dynamics simulations of 20 ns at 300 K on fully modeled PON1wild and PON1mut apoenzyme have been done. Detailed analyses of the root-mean-square deviation and fluctuations, H-bonding pattern, and torsion angles have been performed. The PON1wild results were then compared with those obtained for the PON1mut. Our results show that the active site in the wild-type structure is characterized by two distinct movements of opened and closed conformations of the L1 and L2 loops. The alternating and repetitive movement of loops at specific times is consistent with the presence of 11 defined hydrogen bonds. In the PON1mut, these open-closed movements are therefore totally influenced and repressed by the Q/R and L/M mutations. In fact, these mutations seem to impact the PON1mut active site by directly reducing the catalytic core flexibility, while maintaining a significant mobility of the switch regions delineated by the loops surrounding the active site. The impact of the studied mutations on structure and dynamics proprieties of the protein may subsequently contribute to the loss of both flexibility and activity of the PON1 enzyme.
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Affiliation(s)
- Khadija Amine
- Laboratoire de Biologie et Santé (URAC34), Département de Biologie, Faculté des Sciences Ben Msik, Université Hassan II de Casablanca, Maroc
| | - Lamia Miri
- Laboratoire de Biologie et Santé (URAC34), Département de Biologie, Faculté des Sciences Ben Msik, Université Hassan II de Casablanca, Maroc
| | - Adil Naimi
- l'Association Marocaine pour la Promotion du Logiciel Libre (AMP2L), Maroc
| | - Rachid Saile
- Laboratoire de Biologie et Santé (URAC34), Département de Biologie, Faculté des Sciences Ben Msik, Université Hassan II de Casablanca, Maroc
| | - Abderrahmane El Kharrim
- Laboratoire de Mathématiques Appliquées et Systèmes d'Informations, Département de Mathématiques, Physique et Informatique, Faculté Pluridisciplinaire de Nador, Université Mohammed Premier, Oujda, Maroc. ; Grille Nationale de Calcul au Centre National de la Recherche Scientifique et Technique, Rabat, Maroc
| | - Afaf Mikou
- Laboratoire de Géosciences Appliquées à l'Ingénierie de l'Aménagement, Département de Chimie, Faculté des Sciences Ain Chock, Université Hassan II, Casablanca, Maroc
| | - Anass Kettani
- Laboratoire de Biologie et Santé (URAC34), Département de Biologie, Faculté des Sciences Ben Msik, Université Hassan II de Casablanca, Maroc
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Ramanathan G, Araujo JA, Gornbein J, Yin F, Middlekauff HR. Cigarette smoking is associated with dose-dependent adverse effects on paraoxonase activity and fibrinogen in young women. Inhal Toxicol 2015; 26:861-5. [PMID: 25472476 PMCID: PMC4266070 DOI: 10.3109/08958378.2014.965559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Smoking is associated with increased fibrinogen and decreased paraoxonase (PON) activity, markers of inflammation and oxidative stress, in patients with coronary artery disease. OBJECTIVE We tested the hypothesis that the adverse effect of smoking on these biomarkers of inflammation and oxidative stress would be detectable in otherwise healthy young female habitual smokers. MATERIALS AND METHODS Thirty-eight young women participated in the study (n = 20 habitual smokers, n = 18 non-smokers). Fibrinogen, PON-1 activity and HDL oxidant index (HOI) were measured. RESULTS Mean values of fibrinogen, PON-1 activity and log HOI were not different between the groups. Importantly, however, decreased PON-1 activity (rs = -0.51, p = 0.03) and increased fibrinogen (rs = 0.49, p = 0.04) were significantly correlated with increasing number of cigarettes smoked per day in habitual smokers. DISCUSSION AND CONCLUSION Cigarette smoking is associated with a dose-dependent adverse effect on PON-1 activity and fibrinogen in young women, which may have implications for future cardiovascular risk.
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Affiliation(s)
- Gajalakshmi Ramanathan
- Department of Medicine, Division of Cardiology, David Geffen School of Medicine, UCLA, A2-237 CHS, 650 Charles Young Drive South , Los Angeles, CA , USA , and
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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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Ari H, Kayrak M, Gündüz M, Kayhan F, Kaya Z, Kiyici A, Uguz F. Association of paraoxonase-1 activity and major depressive disorder in patients with metabolic syndrome. Int J Diabetes Dev Ctries 2015. [DOI: 10.1007/s13410-015-0385-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Han Y, Dorajoo R, Ke T, Ayala B, Chang X, Khor CC, van Dam RM, Yuan JM, Koh WP, Liu J, Goh DYT, Friedlander Y, Heng CK. Interaction effects between Paraoxonase 1 variants and cigarette smoking on risk of coronary heart disease in a Singaporean Chinese population. Atherosclerosis 2015; 240:40-5. [PMID: 25746376 DOI: 10.1016/j.atherosclerosis.2015.01.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 01/17/2015] [Accepted: 01/19/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Paraoxonase 1 (PON1) plays an important role in reducing the risk of coronary heart disease (CHD). Smoking is known to reduce PON1 activity. We aimed to investigate the effects of interactions between PON1 variants and smoking on CHD in the Singaporean Chinese population. METHODS In a case-control study nested within Singapore Chinese Health Study (N=1914), subjects with and without CHD were classified into never-smokers and ever-smokers (ever smoked at least one cigarette a day for 1 year or longer). Associations at four independent SNPs at the PON1 locus (rs3735590, rs3917550, rs662, rs3917481) with CHD were evaluated using logistic regression, before/after stratification on smoking status. Interactions between smoking and PON1 variants were analyzed with likelihood ratio tests, by including the SNP*smoking interaction term in regression analyses. RESULTS The T allele at the coding SNP, rs662, was associated with higher risk of CHD in ever-smokers only (OR=1.35, 95% CI 1.08-1.68; adjusted P=0.036). At the miR-SNP, rs3735590, carrying at least one copy of minor allele T was associated with increased risk of CHD in a dominant manner in never-smokers only (OR=1.53, 95% CI 1.11-2.11; adjusted P=0.036). Significant interactions between two PON1 SNPs and smoking in relation to CHD risk were identified (adjusted P=0.012 for rs662; adjusted P=0.044 for rs3735590). These associations remained significant after adjustment for known CHD risk factors and upon correction for multiple tests. CONCLUSIONS Two PON1 SNPs, rs662 and rs3735590, were found to significantly interact with cigarette smoking to modulate the risk of CHD in the Singaporean Chinese population.
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Affiliation(s)
- Yi Han
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore
| | - Rajkumar Dorajoo
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
| | - Tingjing Ke
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore
| | - Burger Ayala
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore; School of Public Health and Community Medicine, Hebrew University of Jerusalem, Israel
| | - Xuling Chang
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore
| | - Chiea-Chuen Khor
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Jian-Min Yuan
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA; University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore; Duke-NUS Graduate Medical School Singapore, Singapore
| | - Jianjun Liu
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore; Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Daniel Y T Goh
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore
| | - Yechiel Friedlander
- School of Public Health and Community Medicine, Hebrew University of Jerusalem, Israel.
| | - Chew-Kiat Heng
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Khoo Teck Puat - National University Children's Medical Institute, National University Health System, Singapore.
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Abstract
The main lifestyle interventions to modify serum HDL cholesterol include physical exercise, weight loss with either caloric restriction or specific dietary approaches, and smoking cessation. Moderate alcohol consumption can be permitted in some cases. However, as these interventions exert multiple effects, it is often difficult to discern which is responsible for improvement in HDL outcomes. It is particularly noteworthy that recent data questions the use of HDL cholesterol as a risk factor and therapeutic target since randomised interventions and Mendelian randomisation studies failed to provide evidence for such an approach. Therefore, these current data should be considered when reading and interpreting this review. Further studies are needed to document the effect of lifestyle changes on HDL structure-function and health.
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Yoldemir T, Yavuz DG. Association of serum paraoxonase concentration with serum lipid levels and bone mineral density measurements in early postmenopausal women. Climacteric 2014; 18:405-10. [PMID: 25333316 DOI: 10.3109/13697137.2014.975196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To determine the association of serum paraoxonase concentration with serum lipid levels and bone mineral density in early postmenopausal Turkish women. DESIGN One hundred healthy postmenopausal women were included in a cross-sectional study in a University hospital clinic. Blood was drawn from women who had bone mineral density (BMD) measurements during routine visits. BMD of the lumbar vertebrae was measured by dual-energy X-ray absorptiometry. The serum paraoxonase concentration and serum lipid levels were measured. Women were divided into two groups: those with normal lumbar vertebrae BMD and those with osteopenic lumbar vertebrae. Serum paraoxonase concentration was compared between the groups. The correlation between serum paraoxonase concentration and bone mass parameters was performed using Pearson's test. RESULTS The paraoxonase concentration in the osteopenic group was significantly lower than in the group with normal lumbar vertebrae BMD. The paraoxonase concentration was moderately correlated with total cholesterol, low density lipoprotein cholesterol and triglyceride levels among early postmenopausal Turkish women. CONCLUSIONS Early postmenopausal women with osteopenic lumbar vertebrae have significantly lower paraoxonase concentration than those with normal lumbar vertebrae BMD. Further studies are needed to clarify the associations between the osteoporosis risk factors and paraoxonase concentration during late postmenopausal years.
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Affiliation(s)
- T Yoldemir
- *Department of Obstetrics and Gynecology, Marmara University , Istanbul , Turkey
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Bortolasci CC, Maes M, Vargas HO, Souza-Nogueira A, Moreira EG, Nunes SOV, Berk M, Dodd S, Barbosa DS. Paraoxonase 1 status and interactions between Q192R functional genotypes by smoking contribute significantly to total plasma radical trapping antioxidant potential. Neurosci Lett 2014; 581:46-51. [DOI: 10.1016/j.neulet.2014.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/05/2014] [Accepted: 08/11/2014] [Indexed: 11/28/2022]
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Abessolo FA, Bruno MJ, N'negue MA, Yangou M, Ngou-Milama E. Enzymatic and genetic polymorphisms of paraoxonase-1 in the Gabonese population: the relation to lipid parameters in patients with diabetes. JOURNAL OF ENDOCRINOLOGY, METABOLISM AND DIABETES OF SOUTH AFRICA 2014. [DOI: 10.1080/22201009.2012.10872283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- FA Abessolo
- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon
| | - MJ Bruno
- Department of Cardiology, Hospital Centre of Libreville, Gabon
| | - MA N'negue
- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon
| | - M Yangou
- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon
| | - E Ngou-Milama
- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon
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Mabrouk H, Mechria H, Mechri A, Azizi I, Neffati F, Douki W, Gaha L, Najjar MF. Paraoxonase 1 activity and lipid profile in schizophrenic patients. Asian J Psychiatr 2014; 9:36-40. [PMID: 24813034 DOI: 10.1016/j.ajp.2013.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 12/27/2013] [Accepted: 12/29/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study aimed to investigate the variations of paraoxonase 1 (PON1) activity and lipid profile in patients with schizophrenia and the association of this activity with the sociodemographic, clinical and therapeutical characteristics of this population. PATIENTS AND METHODS Our cross-sectional study included 140 schizophrenic patients and 119 control subjects aged respectively 37.3±10.4 and 41.4±10 years. PON1 activity was determined using Konelab 30™ equipment (Thermo Electron Corporation). Plasma total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (c-HDL) and low-density lipoprotein cholesterol (c-LDL) concentrations were determined using Cobas 6000™ (Roche Diagnostics), apolipoproteins (ApoA1, ApoB) and lipoprotein (a) (Lp(a)) were determined using Integra 400 plus (Roche Diagnostics). RESULTS Compared to controls, patients had no significant decrease of PON1 activity and significantly lower ApoA1, c-HDL levels, and significantly higher levels of TG, ApoB, Lp(a) and TC/c-HDL and ApoB/ApoA1 ratios. Furthermore, PON1 activity was correlated with TG/c-HDL ratio. The lowest PON1 activity was noted in obese patients, in paranoid sub-type and in patients treated with combination of typical and atypical antipsychotics without significant difference. Moreover, it was associated with gender and cigarette smoking but not with alcohol consumption status. CONCLUSION Schizophrenic patients had a decrease in PON1 activity and perturbations in their lipid profiles that contribute to increase the risk of cardiovascular diseases. In addition, our results revealed that there was no association between the decrease of PON1 activity and any demographic or clinical characteristics. Therefore, such patients require specific care, particularly with regard to their lipid profile.
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Affiliation(s)
- Hajer Mabrouk
- Biochemistry-Toxicology Laboratory, University Hospital of Monastir, Tunisia; Research Laboratory "Vulnerability to Psychotic Disorders LR 05 ES 10", Psychiatry Department, University Hospital of Monastir, Tunisia.
| | - Haithem Mechria
- Psychiatry Department, University Hospital of Monastir, Tunisia
| | - Anouar Mechri
- Research Laboratory "Vulnerability to Psychotic Disorders LR 05 ES 10", Psychiatry Department, University Hospital of Monastir, Tunisia; Psychiatry Department, University Hospital of Monastir, Tunisia
| | - Islam Azizi
- Biochemistry-Toxicology Laboratory, University Hospital of Monastir, Tunisia
| | - Fadoua Neffati
- Biochemistry-Toxicology Laboratory, University Hospital of Monastir, Tunisia
| | - Wahiba Douki
- Biochemistry-Toxicology Laboratory, University Hospital of Monastir, Tunisia; Research Laboratory "Vulnerability to Psychotic Disorders LR 05 ES 10", Psychiatry Department, University Hospital of Monastir, Tunisia
| | - Lotfi Gaha
- Research Laboratory "Vulnerability to Psychotic Disorders LR 05 ES 10", Psychiatry Department, University Hospital of Monastir, Tunisia; Psychiatry Department, University Hospital of Monastir, Tunisia
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Park KH, Shin DG, Cho KH. Dysfunctional Lipoproteins from Young Smokers Exacerbate Cellular Senescence and Atherogenesis with Smaller Particle Size and Severe Oxidation and Glycation. Toxicol Sci 2014; 140:16-25. [DOI: 10.1093/toxsci/kfu076] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Kim DS, Marsillach J, Furlong CE, Jarvik GP. Pharmacogenetics of paraoxonase activity: elucidating the role of high-density lipoprotein in disease. Pharmacogenomics 2014; 14:1495-515. [PMID: 24024900 DOI: 10.2217/pgs.13.147] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
PON1 is a key component of high-density lipoproteins (HDLs) and is at least partially responsible for HDL's antioxidant/atheroprotective properties. PON1 is also associated with numerous human diseases, including cardiovascular disease, Parkinson's disease and cancer. In addition, PON1 metabolizes a broad variety of substrates, including toxic organophosphorous compounds, statin adducts, glucocorticoids, the likely atherogenic L-homocysteine thiolactone and the quorum-sensing factor of Pseudomonas aeruginosa. Numerous cardiovascular and antidiabetic pharmacologic agents, dietary macronutrients, lifestyle factors and antioxidant supplements affect PON1 expression and enzyme activity levels. Owing to the importance of PON1 to HDL function and its individual association with diverse human diseases, pharmacogenomic interactions between PON1 and the various factors that alter its expression and activity may represent an important therapeutic target for future investigation.
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Affiliation(s)
- Daniel Seung Kim
- Departments of Genome Sciences & Medicine (Division of Medical Genetics), University of Washington School of Medicine, Box 357720, University of Washington, Seattle, WA 98195-7720, USA
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He BM, Zhao SP, Peng ZY. Effects of cigarette smoking on HDL quantity and function: implications for atherosclerosis. J Cell Biochem 2014; 114:2431-6. [PMID: 23852759 DOI: 10.1002/jcb.24581] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/16/2013] [Indexed: 01/28/2023]
Abstract
Cigarette smoking has been identified as an independent and preventable risk factor for atherosclerosis and cardiovascular disease. Population studies have shown that plasma high density lipoprotein (HDL) cholesterol levels are inversely related to the risk of developing cardiovascular disease. Cigarette smoking is associated with reduced HDL cholesterol levels. Cigarette smoking can alter the critical enzymes of lipid transport, lowering lecithin: cholesterol acyltransferase (LCAT) activity and altering cholesterol ester transfer protein (CETP) and hepatic lipase activity, which attributes to its impact on HDL metabolism and HDL subfractions distribution. In addition, HDL is susceptible to oxidative modifications by cigarette smoking, which makes HDL become dysfunctional and lose its atheroprotective properties in smokers. Therefore, cigarette smoking has a negative impact on both HDL quantity and function, which can explain, in part, the increased risk of cardiovascular disease in smokers.
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Affiliation(s)
- Bai-mei He
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, P.R., China
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Lowered plasma paraoxonase (PON)1 activity is a trait marker of major depression and PON1 Q192R gene polymorphism-smoking interactions differentially predict the odds of major depression and bipolar disorder. J Affect Disord 2014; 159:23-30. [PMID: 24679385 DOI: 10.1016/j.jad.2014.02.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Revised: 02/07/2014] [Accepted: 02/07/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Major depression and bipolar disorder are accompanied by the activation of immune-inflammatory and Oxidative and Nitrosative Stress (O&NS) pathways and lowered levels of antioxidants. Paraoxonase (PON)1 (EC 3.1.8.1) is an antioxidant bound to High Density Lipoprotein (HDL). Polymorphisms in the PON1 Q192R coding sequence determine three functional genotypes, i.e. 192QQ, 192QR and 192RR. AIMS This study was carried out to delineate the associations of plasma PON1 activity and functional PON1 Q192R genotypes in major depression and bipolar disorder. METHODS PON1 status that is plasma PON1 abundance and three functional PON1 Q192R genotypes were assayed in 91 major depressed and 45 bipolar patients and compared to 199 normal controls. RESULTS Major depression, but not bipolar disorder, was accompanied by lowered PON1 activity. PON1 activity was decreased by smoking and a diagnosis by genotype interaction (i.e. lower PON1 in major depression with the QQ genotype). Logistic regression showed that smoking by QQ genotype significantly increased the odds of bipolar disorder and that major depression was predicted by plasma PON1 activity, serum HDL cholesterol and interactions between genotype×smoking. DISCUSSION The results suggest that lowered plasma PON1 activity is a trait marker of major depression and that PONQ192R gene-environment (smoking) interactions differentially predict the odds of depression and bipolar disorder. LIMITATIONS Association studies are prone to a risk of false positive findings and replication is essential. CONCLUSIONS The findings suggest that there are differential PON1 Q192R functional genotype×environment interactions in major depression and bipolar disorder. The effects of lowered PON1 activity may contribute to increased O&NS and immune-inflammatory burden in depression. PON1 status may contribute to the comorbidity between depression and other immune- and O&NS-related disorders, e.g. cardiovascular disorder.
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The correlation of the total antioxidant status (TAS), total oxidant status (TOS) and paraoxonase activity (PON1) with smoking. Clin Biochem 2014; 47:393-7. [DOI: 10.1016/j.clinbiochem.2013.10.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 03/30/2013] [Accepted: 10/01/2013] [Indexed: 11/20/2022]
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Shekhanawar M, Shekhanawar SM, Krisnaswamy D, Indumati V, Satishkumar D, Vijay V, Rajeshwari T, Amareshwar M. The role of 'paraoxonase-1 activity' as an antioxidant in coronary artery diseases. J Clin Diagn Res 2013; 7:1284-7. [PMID: 23998046 PMCID: PMC3749616 DOI: 10.7860/jcdr/2013/5144.3118] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 06/01/2013] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND OBJECTIVES A majority of the Coronary Artery Diseases (CAD) result from complications of atherosclerosis. There is a growing body of evidence which has revealed that the reduced activity of the HDL-associated enzyme, paraoxonase1 (PON1), is predictive of vascular disease in humans, which include the results from prospective studies. The mechanisms by which PON1 activity influences risk of vascular disease continue to be evaluated. It is generally thought that PON1 contributes to the antioxidant, and thus, to the antiatherogenic properties of High Density Lipoproteins (HDL). Depleted antioxidant levels could be a risk factor for coronary artery disease. Hence, this study was done to evaluate PON1, as antioxidant, in CAD patients. METHODS This study was done to determine serum levels of PON1 activity in 50 controls and in 60 clinically and ECG proven CAD cases and to compare PON1 activity with total cholesterol and triglycerides. RESULTS Serum levels of PON1 activity (p<0.001) were significantly lower in CAD cases than in controls. Serum total cholesterol (p< 0.001) and triglyceride (p< 0.001) levels were significantly higher in CAD cases than in controls. There was a negative correlation between PON 1 activity and total cholesterol and triglycerides. The negative correlation between PON1 activity and total cholesterol was significant (p<0.05). INTERPRETATION AND CONCLUSION From our present study, we can conclude that PON1 can exert a protective effect on HDL by preventing its oxidative damage. Further, a decreased PON 1 activity may be a risk factor for CAD, which is likely to be explained by derangement of PON 1 activity towards lipid peroxidation. This study suggested that serum antioxidant activity of PON1 was an important factor which provided protection from oxidative stress and lipid peroxidation in CAD. Thus, evaluating the effects of PON 1 for CAD patients may be promising in the treatment and prognosis of CAD.
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Affiliation(s)
- Maharudra Shekhanawar
- Assistant Professor, Department of Biochemistry Vijayanagar Institute of Medical SciencesContoment, Bellary-583104, Karnataka, India
| | - Sarala M Shekhanawar
- Consultant Medicine, RTPS Hospital, KPC Ltd., Shakthinagar, Raichur, Karnataka, India
| | - D Krisnaswamy
- Professor & Head, Department of Biochemistry, Vijayanagar Institute of Medical Sciences, Contoment, Bellary-583104, Karnataka, India
| | - V Indumati
- Associate Professor, Department of Biochemistry, Vijayanagar Institute of Medical Sciences, Contoment, Bellary-583104, Karnataka, India
| | - D Satishkumar
- Associate Professor, Department of Biochemistry Vijayanagar Institute of Medical SciencesContoment, Bellary-583104, Karnataka, India
| | - V Vijay
- Assistant Professor, Department of Biochemistry, Vijayanagar Institute of Medical Sciences, Contoment, Bellary-583104, Karnataka, India
| | - T Rajeshwari
- Assistant Professor, Department of Biochemistry, Vijayanagar Institute of Medical Sciences, Contoment, Bellary-583104, Karnataka, India
| | - M Amareshwar
- Assistant Professor, Department of Biochemistry, Vijayanagar Institute of Medical Sciences, Contoment, Bellary-583104, Karnataka, India
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