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Marín-Medina A, Gómez-Ramos JJ, Mendoza-Morales N, Figuera-Villanueva LE. Association between the Polymorphisms rs2070744, 4b/a and rs1799983 of the NOS3 Gene with Chronic Kidney Disease of Uncertain or Non-Traditional Etiology in Mexican Patients. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:829. [PMID: 37241060 PMCID: PMC10221284 DOI: 10.3390/medicina59050829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/31/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023]
Abstract
Background and Objectives: Chronic Kidney Disease of uncertain or non-traditional etiology (CKDnT) is a form of chronic kidney disease of undetermined etiology (CKDu) and is not associated with traditional risk factors. The aim of this study was to investigate the association of polymorphisms rs2070744, 4b/a and rs1799983 of the NOS3 gene with CKDnT in Mexican patients. Materials and Methods: We included 105 patients with CKDnT and 90 controls. Genotyping was performed by PCR-RFLP's, genotypic and allelic frequencies were determined and compared between the two groups using χ2 analysis, and differences were expressed as odd ratios with 95% confidence intervals (CI). Values of p < 0.05 were considered statistically significant. Results: Overall, 80% of patients were male. The rs1799983 polymorphism in NOS3 was found to be associated with CKDnT in the Mexican population (p = 0.006) (OR = 0.397; 95% CI, 0.192-0.817) under a dominant model. The genotype frequency was significantly different between the CKDnT and control groups (χ2 = 8.298, p = 0.016). Conclusions: The results of this study indicate that there is an association between the rs2070744 polymorphism and CKDnT in the Mexican population. This polymorphism can play an important role in the pathophysiology of CKDnT whenever there is previous endothelial dysfunction.
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Affiliation(s)
- Alejandro Marín-Medina
- Departamento de Biología Molecular y Genómicas, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44100, Jalisco, Mexico
| | - José Juan Gómez-Ramos
- Departamento de Urgencias, Hospital General de Zona No. 89, Instituto Mexicano del Seguro Social, Guadalajara 44100, Jalisco, Mexico
| | - Norberto Mendoza-Morales
- Departamento de Urgencias, Hospital General de Zona No. 89, Instituto Mexicano del Seguro Social, Guadalajara 44100, Jalisco, Mexico
- Programa de Especialización en Medicina de Urgencias, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44100, Jalisco, Mexico
| | - Luis Eduardo Figuera-Villanueva
- Departamento de Biología Molecular y Genómicas, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44100, Jalisco, Mexico
- Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social, Guadalajara 44100, Jalisco, Mexico
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Chanana N, Palmo T, Newman JH, Pasha MAQ. Vascular homeostasis at high-altitude: role of genetic variants and transcription factors. Pulm Circ 2020; 10:2045894020913475. [PMID: 33282179 PMCID: PMC7682230 DOI: 10.1177/2045894020913475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/14/2020] [Indexed: 12/24/2022] Open
Abstract
High-altitude pulmonary edema occurs most frequently in non-acclimatized low landers on exposure to altitude ≥2500 m. High-altitude pulmonary edema is a complex condition that involves perturbation of signaling pathways in vasoconstrictors, vasodilators, anti-diuretics, and vascular growth factors. Genetic variations are instrumental in regulating these pathways and evidence is accumulating for a role of epigenetic modification in hypoxic responses. This review focuses on the crosstalk between high-altitude pulmonary edema-associated genetic variants and transcription factors, comparing high-altitude adapted and high-altitude pulmonary edema-afflicted subjects. This approach might ultimately yield biomarker information both to understand and to design therapies for high-altitude adaptation.
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Affiliation(s)
- Neha Chanana
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Tsering Palmo
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - John H Newman
- Pulmonary Circulation Center, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - M A Qadar Pasha
- Genomics and Molecular Medicine, CSIR-Institute of Genomics and Integrative Biology, Delhi, India.,Indian Council of Medical Research, New Delhi, India
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Cotta Filho CK, Oliveira-Paula GH, Rondon Pereira VC, Lacchini R. Clinically relevant endothelial nitric oxide synthase polymorphisms and their impact on drug response. Expert Opin Drug Metab Toxicol 2020; 16:927-951. [DOI: 10.1080/17425255.2020.1804857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | | | | | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, University of Sao Paulo, Ribeirao Preto, Brazil
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Impact on Longevity of Genetic Cardiovascular Risk and Lifestyle including Red Meat Consumption. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1305413. [PMID: 32714484 PMCID: PMC7354649 DOI: 10.1155/2020/1305413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/02/2020] [Indexed: 12/25/2022]
Abstract
Background Cardiovascular risk (CVR) underlies aging process and longevity. Previous work points to genetic and environmental factors associated with this risk. Objectives The aim of this research is to look for any CVR gene-gene and gene-multifactorial/lifestyle interactions that may impact health and disease and underlie exceptional longevity. Methods A case-control study involving 521 both gender individuals, 253 centenarians (100.26 ± 1.98 years), and 268 controls (67.51 ± 3.25 years), low (LCR, n = 107) and high (HCR, n = 161) CVR. Hypertension, diabetes, obesity (BMI, kg·m−2), and impaired kidney function were defined according to standard criteria. CVR was calculated using Q risk®. DNA was genotyping (ACE-rs4646994, AGT-rs4762, AGR1-rs5182, GRK4-rs2960306, GRK4-rs1024323, NOS3-rs1799983, and SLC12A3-rs13306673) through iPlex-MassARRAY®, read by MALDI-TOF mass spectrometry, and analyzed by EARTDECODE®. Results Antilongevity factors consisted (OR 95% CI, p < 0.05) BMI 1.558 (1.445-1.680), hypertension 2.358 (1.565-3.553), smoking habits 4.528 (2.579-7.949), diabetes 5.553 (2.889-10.675), hypercholesterolemia 1.016 (1.010-1.022), and regular consumption of red meat 22.363 (13.987-35.755). Genetic aspects particularly for HCR individuals ACE II (OR: 3.96 (1.83-8.56), p < 0.0001) and NOS3 TT (OR: 3.11 (1.70-5.70), p < 0.0001) genotypes were also risk associate. Obesity, smoking, hypercholesterolemia, and frequent consumption of red meat have an additive action to hypertension in the longevity process. There was a synergistic interaction between the endothelial NOS3 genotypes and the severity of arterial hypertension. An epistatic interaction between functional genetic variants of GRK4 and angiotensinogen was also observed. Conclusions Cardiovascular risk-related genetic and multifactorial or predominantly lifestyle aspects and its interactions might influence the aging process and contribute to exceptional longevity in Portuguese centenarians. Besides lifestyle, the activity of nitrite oxide synthase may be one of the main physiologic regulators of cardiovascular protection in the path of longevity.
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Associations Between Polymorphisms of Endothelial Nitric Oxide Synthase, Matrix Metalloproteinase 3, Angiotensinogen, and Angiotensin II Type 1 Receptor and Risk of Restenosis After Percutaneous Coronary Intervention: A Meta-analysis. Clin Ther 2020; 42:458-474. [DOI: 10.1016/j.clinthera.2020.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 01/21/2023]
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Sleurs C, Madoe A, Lagae L, Jacobs S, Deprez S, Lemiere J, Uyttebroeck A. Genetic Modulation of Neurocognitive Development in Cancer Patients throughout the Lifespan: a Systematic Review. Neuropsychol Rev 2019; 29:190-219. [DOI: 10.1007/s11065-019-09399-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 02/19/2019] [Indexed: 12/14/2022]
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Megías-Vericat JE, Montesinos P, Herrero MJ, Bosó V, Martínez-Cuadrón D, Poveda JL, Sanz MÁ, Aliño SF. Pharmacogenomics and the treatment of acute myeloid leukemia. Pharmacogenomics 2016; 17:1245-1272. [DOI: 10.2217/pgs-2016-0055] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Acute myeloid leukemia (AML) is a clinically and biologically heterogeneous malignancy that is primarily treated with combinations of cytarabine and anthracyclines. Although this scheme remains effective in most of the patients, variability of outcomes in patients has been partly related with their genetic variability. Several pharmacogenetic studies have analyzed the impact of polymorphisms in genes encoding transporters, metabolizers or molecular targets of chemotherapy agents. A systematic review on all eligible studies was carried out in order to estimate the effect of polymorphisms of anthracyclines and cytarabine pathways on efficacy and toxicity of AML treatment. Other emerging genes recently studied in AML, such as DNA repair genes, genes potentially related to chemotherapy response or AML prognosis, have also been included.
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Affiliation(s)
- Juan Eduardo Megías-Vericat
- Unidad de Farmacogenética, Instituto Investigación Sanitaria La Fe and Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
- Servicio de Farmacia, Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - Pau Montesinos
- Servicio de Hematología y Hemoterapia, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - María José Herrero
- Unidad de Farmacogenética, Instituto Investigación Sanitaria La Fe and Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
- Departamento Farmacología, Facultad de Medicina, Universidad de Valencia, Avda, Blasco Ibáñez 15, 46010 – Valencia, Spain
| | - Virginia Bosó
- Unidad de Farmacogenética, Instituto Investigación Sanitaria La Fe and Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
- Servicio de Farmacia, Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - David Martínez-Cuadrón
- Servicio de Hematología y Hemoterapia, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - José Luis Poveda
- Servicio de Farmacia, Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - Miguel Ángel Sanz
- Servicio de Hematología y Hemoterapia, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
| | - Salvador F Aliño
- Unidad de Farmacogenética, Instituto Investigación Sanitaria La Fe and Área del Medicamento, Hospital Universitario y Politécnico La Fe Avda, Fernando Abril Martorell 106, 46026 – Valencia, Spain
- Departamento Farmacología, Facultad de Medicina, Universidad de Valencia, Avda, Blasco Ibáñez 15, 46010 – Valencia, Spain
- Unidad de Farmacología Clínica, Área del Medicamento, Hospital Universitario y Politécnico La Fe. Avda. Fernando Abril Martorell 106, 46026 – Valencia, Spain
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Saleh A, Stathopoulou MG, Dadé S, Ndiaye NC, Azimi-Nezhad M, Murray H, Masson C, Lamont J, Fitzgerald P, Visvikis-Siest S. Angiogenesis related genes NOS3, CD14, MMP3 and IL4R are associated to VEGF gene expression and circulating levels in healthy adults. BMC MEDICAL GENETICS 2015; 16:90. [PMID: 26437765 PMCID: PMC4594922 DOI: 10.1186/s12881-015-0234-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 09/23/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) plays a key role in angiogenesis. The aim was to assess the genetic connections between the angiogenesis-related NOS3, CD14, MMP3, IL4R, IL4 genes and VEGF expression and plasma levels. METHODS The associations between VEGF plasma levels with the polymorphisms of NOS3, CD14, MMP3, IL4R, and IL4 were assessed in 403 healthy unrelated adults. The epistatic and environmental interactions were explored, including four VEGF-related polymorphisms previously identified. The VEGF expression in peripheral blood mononuclear cells was quantified (n = 65) for the VEGF121, VEGF145, VEGF165, and VEGF189 isoforms. RESULTS The polymorphism rs1799983 of NOS3 was associated with the sum of all VEGF isoforms mRNA levels (P = 0.032) and VEGF145 (P = 0.033). Rs1800779 of NOS3 interacted with rs3918226 of the same gene and with the rs2569190 of CD14 (P = 0.022, P = 0.042, respectively) for VEGF plasma levels. Other epistatic interactions included the rs1801275 of IL4R with the rs6921438 (VEGF-related variant) and rs3025058 of MMP3 (P = 0.042, P = 0.010 respectively) and the rs2569190 of CD14 with the rs3025058 of MMP3 (P = 0.0119). We also identified an interaction of rs1800779 with obesity, high-density lipoprotein cholesterol and triglycerides (P = 0.018, P = 0.005, P = 0.043, respectively) as well as the interaction of rs6921438 with hypertension (P = 0.028). CONCLUSIONS Our findings indicated that genetic variants of NOS3, CD14, MMP3 and IL4R are implicated in the determination of VEGF expression and plasma levels. Thus, they support the hypothesis that in physiological conditions there are complex biological relationships between pathways (such as angiogenesis and inflammation), which are involved in the development of chronic diseases.
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Affiliation(s)
- Abdelsalam Saleh
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France.
| | - Maria G Stathopoulou
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France.
| | - Sébastien Dadé
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France.
| | - Ndeye Coumba Ndiaye
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France.
| | - Mohsen Azimi-Nezhad
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France. .,Department of Medical Genetics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | | | - Christine Masson
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France.
| | | | | | - Sophie Visvikis-Siest
- UMR INSERM U 1122, IGE-PCV "Interactions Gène-Environnement en Physiopathologie Cardio Vasculaire", Université de Lorraine, Nancy, F-54000, France. .,Geriatric Service, University Hospital of Nancy, Nancy, France.
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GNB3, eNOS, and mitochondrial DNA polymorphisms correlate to natural longevity in a Xinjiang Uygur population. PLoS One 2013; 8:e81806. [PMID: 24376503 PMCID: PMC3869651 DOI: 10.1371/journal.pone.0081806] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 10/16/2013] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND In centenarian populations, application of the positive biology approach (examination of positive phenotypes in aging) has revealed that mitochondrial DNA (mtDNA) mutation accumulation may be linked to human longevity; however, the role of guanine nucleotide-binding protein (G protein) abnormalities modulated by G-protein beta-3 (GNB3) and nitrate (NO2) production associated with endothelial nitric oxide synthase (eNOS), commonly appearing in age-related diseases, remains undetermined. OBJECTIVE The association between the mtDNA 5178A/C, mtDNA 10398A/G, GNB3 C825T, and eNOS polymorphisms and longevity in a Uygur population (Xinjiang region, China) were investigated. METHODS A total of 275 experimental subjects aged ≥ 100 or with 4 generations currently living were screened for inclusion in the centenarian (>100 years) and nonagenarian groups (90-100 years), and 112 65-70 year old control subjects were selected. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to examine mtDNA 5178A/C, mtDNA 10398A/G, GNB3 C825T, and eNOS. Associations between polymorphic loci, genotypes, and longevity were analyzed. RESULTS 165 included subjects (M∶F = 107∶58; mean age = 97 ± 3 years; mean age 100-113 years) were assigned to the centenarian (M∶F = 46/19; n = 65) and nonagenarian groups (M∶F = 61/39; n = 100). Associations between mtDNA C5178A and A10398G polymorphisms with longevity in the centenarian group with mtDNA genotype frequencies 5178A and 10398G were 66.79% and 36.8%. CONCLUSIONS Applying the overwhelming longevity observed in Uygur populations, these findings demonstrate that mtDNA 5178A/C and 10398A/G, GNB3 C825T, and eNOS polymorphisms are useful as a genetic basis for longevity.
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Buurma A, Turner R, Driessen J, Mooyaart A, Schoones J, Bruijn J, Bloemenkamp K, Dekkers O, Baelde H. Genetic variants in pre-eclampsia: a meta-analysis. Hum Reprod Update 2013; 19:289-303. [DOI: 10.1093/humupd/dms060] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Rocha NG, Neves FJ, Silva BM, Sales ARK, Nóbrega AC. The 894G>T endothelial nitric oxide synthase genetic polymorphism affects hemodynamic responses to mental stress performed before and after exercise. Eur J Appl Physiol 2011; 112:877-86. [DOI: 10.1007/s00421-011-2042-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 06/03/2011] [Indexed: 11/30/2022]
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Association between NOS3 gene G894T polymorphism and late-onset Alzheimer disease in a sample from Iran. Alzheimer Dis Assoc Disord 2010; 24:204-8. [PMID: 20505439 DOI: 10.1097/wad.0b013e3181a7c8fd] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Alzheimer disease (AD) is the most common age-associated neurodegenerative disease caused by complicated interactions between genetic and environmental factors. The presence of the apolipoprotein epsilon4 allele, the only confirmed genetic risk factor for late-onset AD (LOAD), is neither sufficient nor necessary to explain all occurrences of the disease. Aberrant expression of the endothelial nitric oxide synthase (NOS3) gene has been demonstrated in degenerating neurons and glial cells in brains with AD. Molecular epidemiologic studies have presented contradictory results concerning a potential role of NOS3 gene G894T polymorphism in AD. To define a possible association of this polymorphism with LOAD in an Iranian population, we conducted a case-control study including a clinically well-defined group of 100 LOAD patients and 100 age-matched controls. G894T polymorphism in NOS3 gene was determined by polymerase chain reaction-restriction fragment length polymorphisms assay. Chi-square analysis showed a significantly increased number of individuals with the G/G genotype in AD patients compared with controls (P<0.05). These results demonstrate an association between G894T polymorphism and LOAD in an Iranian sample and the G/G genotype seems to have some effects in the development of AD either alone or through interaction with other risk factors.
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Wang P, Koehle MS, Rupert JL. Genotype at the missense G894T polymorphism (Glu298Asp) in the NOS3 gene is associated with susceptibility to acute mountain sickness. High Alt Med Biol 2009; 10:261-7. [PMID: 19775216 DOI: 10.1089/ham.2008.1089] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Acute mountain sickness (AMS) is a potentially serious affliction that frequently occurs in travelers to altitudes above 2500 m. The probability of developing AMS depends on environmental factors such as rate of ascent and altitude attained; however, familial clustering and recurrence rates suggest that there may be a genetic contribution to the etiology of the condition. The underlying pathophysiology of AMS is unknown, but it may involve vasogenic edema secondary to hypoxia-induced sympathetic response and endothelial dysfunction. Nitric oxide is a potent vasomodulator, and variants in the gene that encodes endothelial nitric oxide synthase (NOS3) have been shown to affect blood pressure. We tested the hypothesis that haplotypes, as determined by tagSNPs, in NOS3 would be differentially represented in individuals with and without AMS sampled at the Janai Purnima Festival at Lake Gosain Kunda, Nepal, at 4380 m. Seven SNPs were tested, and a highly significant association (p = 0.004) was found for genotypes of the commonly studied missense polymorphism Glu298Asp (rs 1799983; G/T transversion at base 894). The T allele, which previously has been associated with hypertension, was overrepresented in individuals with AMS (0.30 vs. 0.10), but not significantly when the data were corrected for multiple testing (p = 0.024). These data suggest that a variant in a gene involved in nitric oxide synthesis is a risk factor for developing AMS.
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Affiliation(s)
- Pei Wang
- School of Human Kinetics, University of British Columbia, Vancouver, Canada
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Gluba A, Banach M, Rysz J, Piotrowski G, Fendler W, Pietrucha T. Is Polymorphism within eNOS Gene Associated With the Late Onset of Myocardial Infarction? A Pilot Study. Angiology 2009; 60:588-95. [DOI: 10.1177/0003319709335031] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction Nitric oxide (NO) produced by endothelial nitric oxide synthase (eNOS) is a potent vasodilator. Several polymorphisms in the eNOS gene have been described, some of them being linked with the increased risk of cardiovascular disease, coronary heart disease (CHD), and coronary spasm. Methods and Results We studied 3 polymorphisms within the gene of eNOS (-786T/C, G10T, and 894 G/T) in patients with their first myocardial infarction (MI) younger than 45 years and in healthy volunteers. We found the relation between the occurrence of eNOS 894G allele and the Gensini score, which describes the severity of CHD ( P = .020). Conclusions The fact that first clinical manifestation of MI occurred in G carriers when the atherosclerotic plaque was much more advanced than in T carriers may suggest that wild-type genotype provided a better compensatory mechanisms due to NO synthesis and/or release. The polymorphisms within eNOS gene G10T, 894G/T, and −786T/C were not associated with the increased risk of MI.
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Affiliation(s)
- Anna Gluba
- Departments of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, Poland
| | - Maciej Banach
- Departments of Hypertension, Medical University of Lodz, Poland
| | - Jacek Rysz
- Departments of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, Poland
| | - Grzegorz Piotrowski
- Department of Cardiology, M. Kopernik Provincial Specialist Hospital, Lodz, Poland
| | | | - Tadeusz Pietrucha
- Departments of Medical Biotechnology, Medical University of Lodz, Poland
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León-Velarde F, Mejía O. Gene Expression in Chronic High Altitude Diseases. High Alt Med Biol 2008; 9:130-9. [DOI: 10.1089/ham.2007.1077] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Fabiola León-Velarde
- Laboratorio de Fisiología Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Olga Mejía
- Laboratorio de Fisiología Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú
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Cooke GE, Doshi A, Binkley PF. Endothelial nitric oxide synthase gene: prospects for treatment of heart disease. Pharmacogenomics 2007; 8:1723-34. [PMID: 18086002 DOI: 10.2217/14622416.8.12.1723] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Nitric oxide functions as a signaling molecule with a well-established role in vascular homeostasis. It is synthesized from the oxidation of L-arginine by the enzyme, endothelial nitric oxide synthase (eNOS). The eNOS gene has a number of polymorphic sites, including SNPs, dinucleotide repeats and variable number tandem repeat sequences, and the opportunity exists to investigate polymorphic functional correlates as well as disease-specific associations, especially in cardiovascular disease, including coronary artery disease, and its most severe consequence, myocardial infarction. A number of clinical and functional correlative studies involving eNOS polymorphisms have been reported and are presented. The promise and complexity of pharmacogenetics is illustrated using eNOS as an example because of its relationship with cardiovascular biology and pathology. In this review, we will discuss the impact of nitric oxide, eNOS, genetic regulation, clinical investigation and, ultimately, prospects for treatment of heart disease.
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Affiliation(s)
- Glen E Cooke
- The Ohio State University, Division of Cardiovascular Medicine and Davis Heart and Lung Research Institute, Department of Medicine, 235 DHLRI, 473 W 12th Avenue, Columbus, Ohio, 43210-1252, USA
| | - Amit Doshi
- The Ohio State University, Division of Cardiovascular Medicine and Davis Heart and Lung Research Institute, Department of Medicine, 235 DHLRI, 473 W 12th Avenue, Columbus, Ohio, 43210-1252, USA
| | - Philip F Binkley
- The Ohio State University, Division of Cardiovascular Medicine and Davis Heart and Lung Research Institute, Department of Medicine, 235 DHLRI, 473 W 12th Avenue, Columbus, Ohio, 43210-1252, USA
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Godfrey V, Chan SL, Cassidy A, Butler R, Choy A, Fardon T, Struthers A, Lang C. The Functional Consequence of the Glu298Asp Polymorphism of the Endothelial Nitric Oxide Synthase Gene in Young Healthy Volunteers. ACTA ACUST UNITED AC 2007; 25:280-8. [DOI: 10.1111/j.1527-3466.2007.00017.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Dell'Omo G, Penno G, Pucci L, Fotino C, Lucchesi D, Del Prato S, Pedrinelli R. Lack of association between endothelial nitric oxide synthase gene polymorphisms, microalbuminuria and endothelial dysfunction in hypertensive men. J Hypertens 2007; 25:1389-95. [PMID: 17563560 DOI: 10.1097/hjh.0b013e3281268548] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The Glu298Asp, T786C and 4a/4b genetic polymorphisms within the endothelial nitric oxide synthase (e-NOS) gene may predispose to hypertension, ischaemic heart disease and renal damage, possibly by reducing the generation of nitric oxide (NO), a fundamental substance in renal and cardiovascular biology. That same mechanism may contribute to raise albuminuria, a correlate of endothelial dysfunction and a marker of early kidney damage and poor cardiovascular prognosis in patients with hypertension. To assess that hypothesis, we evaluated the association of albuminuria with eNOS genotypes and their interacting potential with the angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism. We also tested their impact on systemic NO availability, as reflected by endothelial-mediated forearm vasodilatation. METHODS Albuminuria (three overnight collections), blood pressure, body mass index, renal function, glucose, lipids and prevalence of the metabolic syndrome were measured in 235 genetically unrelated, never-treated, uncomplicated white men with essential hypertension. Endothelial function was assessed in a patient subgroup (n = 94) by measuring plethysmographic forearm blood flow vasodilatation in response to intra-arterial acetylcholine with sodium nitroprusside as a control. Polymerase chain reaction or a 5' nuclease assay were used to characterize the eNOS and ACE I/D variants. RESULTS Albuminuria or microalbuminuria (albuminuria > or = 15 microg/min) showed no association with eNOS polymorphisms either per se or after accounting for the co-existing ACE I/D genetic configuration. Forearm responses to acetylcholine did not differ by eNOS polymorphisms. Cardiovascular, renal, metabolic parameters were homogeneously distributed across different genetic backgrounds. CONCLUSION eNOS polymorphisms apparently play no role in promoting hypertensive renal damage, and do not influence endothelial-mediated vasodilatation in never-treated men with essential hypertension.
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Affiliation(s)
- Giulia Dell'Omo
- Department of Cardiothoracics, University of Pisa, Pisa, Italy
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van der Linden IJM, Heil SG, den Heijer M, Blom HJ. The 894G>T variant in the endothelial nitric oxide synthase gene and spina bifida risk. J Hum Genet 2007; 52:516-520. [PMID: 17479212 PMCID: PMC1915643 DOI: 10.1007/s10038-007-0147-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Accepted: 03/29/2007] [Indexed: 10/25/2022]
Abstract
The 894G>T single nucleotide polymorphism (SNP) in the endothelial NOS (NOS3) gene, has recently been associated with embryonic spina bifida risk. In this study, a possible association between the NOS3 894G>T SNP and spina bifida risk in both mothers and children in a Dutch population was examined using both a case-control design and a transmission disequilibrium test (TDT). Possible interactions between the NOS3 894G>T SNP and the MTHFR 677C>T SNP, elevated plasma homocysteine, and decreased plasma folate concentrations were also studied. The NOS3 894TT genotype did not increase spina bifida risk in mothers or children (OR 1.50, 95%CI 0.71-3.19 and OR 1.78, 95%CI 0.75-4.25, respectively). The TDT demonstrated no preferential transmission of the NOS3 894T allele (Chi2=0.06, P=0.81). In combination with the MTHFR 677TT genotype or elevated plasma homocysteine concentrations, the NOS3 894GT/TT genotype increased maternal spina bifida risk (OR 4.52, 95%CI 1.55-13.22 and OR 3.38, 95%CI 1.46-7.84, respectively). In our study population, the NOS3 894GT/TT genotype might be a risk factor for having a spina bifida affected child in mothers who already have an impaired homocysteine metabolism.
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Affiliation(s)
- Ivon J M van der Linden
- Laboratory of Pediatrics and Neurology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Sandra G Heil
- Laboratory of Pediatrics and Neurology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Martin den Heijer
- Department of Endocrinology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
- Department of Epidemiology and Biostatistics, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Henk J Blom
- Laboratory of Pediatrics and Neurology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
- Metabolic Unit, PK 1-X-018, Department of Clinical Chemistry, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
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20
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Iturry-Yamamoto G, Moriguchi E, Zago A, Alho C, Zago A. Association of the 894G>T polymorphism of the endothelial constitutive nitric oxide synthase gene with unstable angina. Braz J Med Biol Res 2007. [DOI: 10.1590/s0100-879x2006005000072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | - A.C. Zago
- Universidade Federal do Rio Grande do Sul
| | - C.S. Alho
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | - A.J. Zago
- Universidade Federal do Rio Grande do Sul
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21
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Lee CR, North KE, Bray MS, Avery CL, Mosher MJ, Couper DJ, Coresh J, Folsom AR, Boerwinkle E, Heiss G, Zeldin DC. NOS3 polymorphisms, cigarette smoking, and cardiovascular disease risk: the Atherosclerosis Risk in Communities study. Pharmacogenet Genomics 2007; 16:891-9. [PMID: 17108813 PMCID: PMC1978174 DOI: 10.1097/01.fpc.0000236324.96056.16] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Endothelial nitric oxide synthase (NOS3) activity and cigarette smoking significantly influence endothelial function. We sought to determine whether cigarette smoking modified the association between NOS3 polymorphisms and risk of coronary heart disease or stroke. METHODS All 1085 incident coronary heart disease cases, all 300 incident ischemic stroke cases, and 1065 reference individuals from the Atherosclerosis Risk in Communities study were genotyped for the T-786C and E298D polymorphisms in NOS3. Using a case-cohort design, associations between genotype/haplotype and disease risk were evaluated by multivariable proportional hazards regression. Multiplicative scale interaction testing evaluated the influence of cigarette smoking history at baseline on these associations. RESULTS In Caucasians, association between E298D genotype and risk of coronary heart disease was significantly modified by current smoking status (interaction P=0.013), with the highest risk observed in smokers carrying the variant D298 allele relative to nonsmokers carrying two E298 alleles (adjusted hazard rate ratio 2.07, 95% confidence interval 1.39-3.07). In African-Americans, association between T-786C genotype and risk of ischemic stroke was significantly modified by pack-year smoking history (interaction P=0.037), with the highest risk observed in >or=20 pack-year smokers carrying the variant C-786 allele relative to <20 pack-year smokers carrying two T-786 alleles (adjusted hazard rate ratio 4.03, 95% confidence interval 1.54-10.6). CONCLUSIONS An interaction between the E298D and T-786C polymorphisms in NOS3, cigarette smoking, and risk of incident coronary heart disease and ischemic stroke events appears to exist, suggesting a potential complex interplay between genetic and environmental factors and cardiovascular disease risk.
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Affiliation(s)
- Craig R. Lee
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Chapel Hill, North Carolina, USA
- Division of Pharmacotherapy and Experimental Therapeutics, School of Pharmacy, Chapel Hill, North Carolina, USA
| | - Kari E. North
- Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Molly S. Bray
- Children’s Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA
| | - Christy L. Avery
- Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Mary Jane Mosher
- Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - David J. Couper
- Department of Biostatistics, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Josef Coresh
- Department of Epidemiology, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Aaron R. Folsom
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - Eric Boerwinkle
- The Human Genetics Center, University of Texas Health Science Center, Houston, Texas, USA
| | - Gerardo Heiss
- Department of Epidemiology, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Darryl C. Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Chapel Hill, North Carolina, USA
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22
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Scinicariello F, Murray HE, Moffett DB, Abadin HG, Sexton MJ, Fowler BA. Lead and delta-aminolevulinic acid dehydratase polymorphism: where does it lead? A meta-analysis. ENVIRONMENTAL HEALTH PERSPECTIVES 2007; 115:35-41. [PMID: 17366816 PMCID: PMC1797830 DOI: 10.1289/ehp.9448] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Accepted: 09/15/2006] [Indexed: 05/14/2023]
Abstract
BACKGROUND Lead poisoning affects many organs in the body. Lead inhibits delta-aminolevulinic acid dehydratase (ALAD), an enzyme with two co-dominantly expressed alleles, ALAD1 and ALAD2. OBJECTIVE Our meta-analysis studied the effects of the ALAD polymorphism on a) blood and bone lead levels and b) indicators of target organ toxicity. DATA SOURCE We included studies reporting one or more of the following by individuals with genotypes ALAD1-1 and ALAD1-2/2-2: blood lead level (BLL), tibia or trabecular lead level, zinc protoporphyrin (ZPP), hemoglobin, serum creatinine, blood urea nitrogen (BUN), dimercaptosuccinic acid-chelatable lead, or blood pressure. DATA EXTRACTION Sample sizes, means, and standard deviations were extracted for the genotype groups. DATA SYNTHESIS There was a statistically significant association between ALAD2 carriers and higher BLL in lead-exposed workers (weighted mean differences of 1.93 microg/dL). There was no association with ALAD carrier status among environmentally exposed adults with BLLs < 10 microg/dL. ALAD2 carriers were potentially protected against adverse hemapoietic effects (ZPP and hemoglobin levels), perhaps because of decreased lead bioavailability to heme pathway enzymes. CONCLUSION Carriers of the ALAD2 allele had higher BLLs than those who were ALAD1 homozygous and higher hemoglobin and lower ZPP, and the latter seems to be inversely related to BLL. Effects on other organs were not well delineated, partly because of the small number of subjects studied and potential modifications caused by other proteins in target tissues or by other polymorphic genes.
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Affiliation(s)
- Franco Scinicariello
- Division of Toxicology and Environmental Medicine, Agency for Toxic Substances and Disease Registry, Centers of Disease Control and Prevention, Atlanta, Georgia 30341, USA.
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23
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Weaver VM, Lee BK, Todd AC, Ahn KD, Shi W, Jaar BG, Kelsey KT, Lustberg ME, Silbergeld EK, Parsons PJ, Wen J, Schwartz BS. Effect modification by delta-aminolevulinic acid dehydratase, vitamin D receptor, and nitric oxide synthase gene polymorphisms on associations between patella lead and renal function in lead workers. ENVIRONMENTAL RESEARCH 2006; 102:61-9. [PMID: 16487505 DOI: 10.1016/j.envres.2006.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Revised: 12/19/2005] [Accepted: 01/04/2006] [Indexed: 05/06/2023]
Abstract
Genetic polymorphisms that affect lead toxicokinetics or toxicodynamics may be important modifiers of risk for adverse outcomes in lead-exposed populations. We recently reported associations between higher patella lead, which is hypothesized to represent a lead pool that is both bioavailable and cumulative, and adverse renal outcomes in current and former Korean lead workers. In the present study, we assessed effect modification by polymorphisms in the genes encoding for delta-aminolevulinic acid dehydratase (ALAD), the vitamin D receptor (VDR), and endothelial nitric oxide synthase on those associations. Similar analyses were conducted with three other lead biomarkers. Renal function was assessed via blood urea nitrogen, serum creatinine, measured and calculated creatinine clearances, urinary N-acetyl-beta-D-glucosaminidase, and retinol-binding protein. Mean (SD) blood, patella, tibia, and dimercaptosuccinic acid-chelatable lead values were 30.9 (16.7) microg/dl, 75.1 (101.1)and 33.6 (43.4) microg Pb/g bone mineral, and 0.63 (0.75) microg Pb/mg creatinine, respectively, in 647 lead workers. Little evidence of effect modification by genotype on associations between patella lead and renal outcomes was observed. The VDR polymorphism did modify associations between the other lead biomarkers and the serum creatinine and calculated creatinine clearance. Higher lead dose was associated with worse renal function in participants with the variant B allele. Models in two groups, dichotomized by median age, showed that this effect was present in the younger half of the population. Limited evidence of effect modification by ALAD genotype was observed; higher blood lead levels were associated with higher calculated creatinine clearance among participants with the ALAD(1-2) genotype. In conclusion, VDR and/or ALAD genotypes modified associations between all the lead biomarkers, except patella lead, and the renal outcomes.
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Affiliation(s)
- Virginia M Weaver
- Division of Occupational and Environmental Health, Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA.
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24
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Liou YJ, Lai IC, Lin MW, Bai YM, Lin CC, Liao DL, Chen JY, Lin CY, Wang YC. Haplotype analysis of endothelial nitric oxide synthase (NOS3) genetic variants and tardive dyskinesia in patients with schizophrenia. Pharmacogenet Genomics 2006; 16:151-7. [PMID: 16495774 DOI: 10.1097/01.fpc.0000184958.05775.66] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Several studies have indicated the involvement of nitric oxide (NO) in the pathogenesis of tardive dyskinesia (TD), an incapacitating adverse movement disorder associated with long-term antipsychotic treatment. In human brain, the NO could be generated by endothelial nitric oxide synthase (NOS3). In this study, we studied whether the genetic variants in human NOS3 gene is associated with TD in patients with schizophrenia. METHODS Two hundred and eighty-two chronic inpatients with schizophrenia treated with typical antipsychotics were recruited in this study. The patients were further grouped by the presence of TD or not according to the Research and Diagnostic Criteria for TD. The genetic variants in the NOS3 gene investigated in this study were -786T > C in the promotor region, 27-bp variable number of tandem repeats (27-bp VNTR) in intron 4, and Glu298Asp in exon 7. The frequencies of genotypes, alleles and haplotypes of the three markers were compared between the TD (n = 153) and non-TD (n = 129) groups. RESULTS There were no significant associations between the genotypes and alleles of the three markers and TD. However, in the haplotype-based case-control analysis, the frequency of haplotype T-4b-Glu was significantly higher in non-TD than in TD group (TD vs. non-TD = 72.7% vs. 81.0%, permutation P value = 0.021, OR = 0.648, 95% CI = 0.432-0.973). CONCLUSIONS We found that the haplotype T-4b-Glu represents a protective haplotype against TD after long-term antipsychotic treatment. This finding suggests that human NOS3 gene may be involved in the pathogenesis of TD.
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Affiliation(s)
- Ying-Jay Liou
- Institute of Clinical Medicine, Yuli Veterans Hospital, Yuli, Hualien, Taiwan, ROC
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25
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Broeke RT, De Crom R, Van Haperen R, Verweij V, Leusink-Muis T, Van Ark I, De Clerck F, Nijkamp FP, Folkerts G. Overexpression of endothelial nitric oxide synthase suppresses features of allergic asthma in mice. Respir Res 2006; 7:58. [PMID: 16597326 PMCID: PMC1456969 DOI: 10.1186/1465-9921-7-58] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2006] [Accepted: 04/05/2006] [Indexed: 01/04/2023] Open
Abstract
Background Asthma is associated with airway hyperresponsiveness and enhanced T-cell number/activity on one hand and increased levels of exhaled nitric oxide (NO) with expression of inducible NO synthase (iNOS) on the other hand. These findings are in paradox, as NO also relaxes airway smooth muscle and has immunosuppressive properties. The exact role of the endothelial NOS (eNOS) isoform in asthma is still unknown. We hypothezised that a delicate regulation in the production of NO and its bioactive forms by eNOS might be the key to the pathogenesis of asthma. Methods The contribution of eNOS on the development of asthmatic features was examined. We used transgenic mice that overexpress eNOS and measured characteristic features of allergic asthma after sensitisation and challenge of these mice with the allergen ovalbumin. Results eNOS overexpression resulted in both increased eNOS activity and NO production in the lungs. Isolated thoracic lymph nodes cells from eNOS overexpressing mice that have been sensitized and challenged with ovalbumin produced significantly less of the cytokines IFN-γ, IL-5 and IL-10. No difference in serum IgE levels could be found. Further, there was a 50% reduction in the number of lymphocytes and eosinophils in the lung lavage fluid of these animals. Finally, airway hyperresponsiveness to methacholine was abolished in eNOS overexpressing mice. Conclusion These findings demonstrate that eNOS overexpression attenuates both airway inflammation and airway hyperresponsiveness in a model of allergic asthma. We suggest that a delicate balance in the production of bioactive forms of NO derived from eNOS might be essential in the pathophysiology of asthma.
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Affiliation(s)
- Robert Ten Broeke
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
- St Antonius Hospital, Nieuwegein, The Netherlands
| | - Rini De Crom
- Department of Cell Biology & Genetics, Erasmus Medical Centre, Rotterdam, The Netherlands
- Department of Vascular Surgery, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Rien Van Haperen
- Department of Cell Biology & Genetics, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Vivienne Verweij
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
| | - Thea Leusink-Muis
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
| | - Ingrid Van Ark
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
| | - Fred De Clerck
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
- Janssen Research Foundation, Beerse, Belgium
| | - Frans P Nijkamp
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
| | - Gert Folkerts
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
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26
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Weaver VM, Schwartz BS, Jaar BG, Ahn KD, Todd AC, Lee SS, Kelsey KT, Silbergeld EK, Lustberg ME, Parsons PJ, Wen J, Lee BK. Associations of uric acid with polymorphisms in the delta-aminolevulinic acid dehydratase, vitamin D receptor, and nitric oxide synthase genes in Korean lead workers. ENVIRONMENTAL HEALTH PERSPECTIVES 2005; 113:1509-15. [PMID: 16263504 PMCID: PMC1310911 DOI: 10.1289/ehp.7927] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Recent research suggests that uric acid may be nephrotoxic at lower levels than previously recognized and that it may be one mechanism for lead-related nephrotoxicity. Therefore, in understanding mechanisms for lead-related nephrotoxicity, it would be of value to determine whether genetic polymorphisms that are associated with renal outcomes in lead workers and/or modify associations between lead dose and renal function are also associated with uric acid and/or modify associations between lead dose and uric acid. We analyzed data on three such genetic polymorphisms: delta-aminolevulinic acid dehydratase (ALAD), endothelial nitric oxide synthase (eNOS), and the vitamin D receptor (VDR). Mean (+/- SD) tibia, blood, and dimercaptosuccinic acid-chelatable lead levels were 37.2 +/- 40.4 microg/g bone mineral, 32.0+/- 15.0 g/dL, and 0.77+/- 0.86 microg/mg creatinine, respectively, in 798 current and former lead workers. Participants with the eNOSAsp allele had lower mean serum uric acid compared with those with the Glu/Glu genotype. Among older workers (age > or = median of 40.6 years), ALAD genotype modified associations between lead dose and uric acid levels. Higher lead dose was significantly associated with higher uric acid in workers with the ALAD1-1 genotype; associations were in the opposite direction in participants with the variant ALAD1-2 genotype. In contrast, higher tibia lead was associated with higher uric acid in those with the variant VDRB allele; however, modification was dependent on participants with the bb genotype and high tibia lead levels. We conclude that genetic polymorphisms may modify uric acid mediation of lead-related adverse renal effects.
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Affiliation(s)
- Virginia M Weaver
- Division of Occupational and Environmental Health, Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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27
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Garland EM, Winker R, Williams SM, Jiang L, Stanton K, Byrne DW, Biaggioni I, Cascorbi I, Phillips JA, Harris PA, Rüdiger H, Robertson D. Endothelial NO synthase polymorphisms and postural tachycardia syndrome. Hypertension 2005; 46:1103-10. [PMID: 16203873 DOI: 10.1161/01.hyp.0000185462.08685.da] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Postural tachycardia syndrome (POTS) is a heterogeneous disorder characterized by an excessive rise in heart rate and symptoms consistent with cerebral hypoperfusion in the upright position. NO produced by endothelial NO synthase is a significant factor in the regulation of blood flow. Genetic polymorphisms in the promoter region (T-786C) and exon 7 (E298D) of the NO synthase isoform 3 gene affect enzyme activity and have been associated with a number of cardiovascular diseases. Because some findings in POTS suggest aberrant NO-mediated functions, we postulated that the variant genotypes of these polymorphisms may increase the risk of developing POTS and correlate with more severe symptoms. We genotyped 136 patients with POTS (mean age 32.2+/-9.9 years; 46 men and 90 women) from Nashville, Tenn, and Vienna, Austria, and compared them with 191 healthy volunteers (mean age 29.1+/-8.0 years; 127 men and 64 women). Participants also underwent orthostatic testing with blood pressure, heart rate, and plasma norepinephrine measurements while supine and upright. The frequencies of the -786CC and 298DD genotypes were significantly lower in patients with POTS than in control subjects (odds ratio [OR], 0.28; 95% confidence interval [CI], 0.14 to 0.57; P=0.001 for -786CC; and OR, 0.44; 95% CI, 0.21 to 0.91; P=0.033 for 298DD). According to 2-locus genotype analyses, patients with -786CC and 298EE or 298ED experienced the largest changes in heart rate and plasma norepinephrine with standing. These results indicate that NO may influence the development of POTS and the severity of POTS symptoms.
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Affiliation(s)
- Emily M Garland
- Autonomic Dysfunction Center, Vanderbilt University, Nashville, TN 37232-2195, USA.
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28
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Guidi I, Galimberti D, Venturelli E, Lovati C, Del Bo R, Fenoglio C, Gatti A, Dominici R, Galbiati S, Virgilio R, Pomati S, Comi GP, Mariani C, Forloni G, Bresolin N, Scarpini E. Influence of the Glu298Asp polymorphism of NOS3 on age at onset and homocysteine levels in AD patients. Neurobiol Aging 2005; 26:789-94. [PMID: 15718036 DOI: 10.1016/j.neurobiolaging.2004.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2004] [Revised: 05/26/2004] [Accepted: 07/28/2004] [Indexed: 11/22/2022]
Abstract
The distribution of the Glu298Asp polymorphism in NOS3 gene was determined in 405 Italian patients with "probable" Alzheimer's disease (AD) compared with 253 age-matched controls. Total plasma homocysteine (tHcy) levels were evaluated in 97 patients and 23 controls, and were correlated with the Glu298Asp genotype. A significantly increased frequency of the Glu/Glu genotype in late onset AD (LOAD) patients was found. tHcy levels were significantly increased in patients compared with controls and, notably, higher in LOAD than in early onset AD (EOAD). Stratifying by the Glu298Asp genotype, a trend toward an increase of tHcy was present in Glu/Glu homozygous. This wild type genotype seems to be associated with LOAD. tHcy levels are significantly increased in AD compared with controls and, moreover, higher in LOAD than in EOAD, possibly in correlation with the microvascular disease occurring with aging. Besides, a contribution of the Glu/Glu genotype in increasing tHcy levels has been observed.
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Affiliation(s)
- Ilaria Guidi
- Department of Neurological Sciences, Dino Ferrari Center, University of Milan, IRCCS Ospedale Maggiore Policlinico, Via F. Sforza 35, 20122 Milan, Italy
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29
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Krajinovic M, Robaey P, Chiasson S, Lemieux-Blanchard E, Rouillard M, Primeau M, Bournissen FG, Moghrabi A. Polymorphisms of genes controlling homocysteine levels and IQ score following the treatment for childhood ALL. Pharmacogenomics 2005; 6:293-302. [PMID: 16013960 DOI: 10.1517/14622416.6.3.293] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Introduction: One of the causes of long-term morbidity associated with the treatment of acute lymphoblastic leukemia (ALL) is late neurotoxicity manifesting as impairment of higher cognitive functions. Cranial radiation therapy (CRT) and chemotherapeutic agents, particularly methotrexate (MTX), are often suggested to be major contributing factors for its development. Homocysteinemia that arises as a result of MTX-induced folate depletion was proposed to play a role in MTX-related neurotoxicity. Several enzymes are essential to maintain the homocysteine levels. Their different functional forms, associated with common genetic polymorphisms, may modulate homocysteine levels and thereby influence MTX-associated neurotoxicity. Objectives: To test this hypothesis we assessed whether the variants of the methylene tetrahydrofolate reductase (MTHFR), methionine synthase (MTR), methionine synthase reductase (MTRR), cystathionine β-synthase (CBS) and endothelial nitric acid synthase (eNOS, NOS3) genes, acting either independently or in conjunction with other risk factors, influenced the cognitive functioning in ALL patients. The influence of the genes was measured by estimating the change in IQ scores over a period of 4 years post ALL diagnosis. Results: Two variants, the CBS 844ins68 polymorphism and NOS3 894T homozygosity, were associated with a change in IQ scores (p = 0.01 and 0.007, respectively). A multivariate model obtained through step-wise selection pointed to the importance of the NOS3 894TT genotype only. This effect appears to be dependent on CRT; IQ decline was apparent among individuals with the 894TT genotype who received radiation therapy (p = 0.03). Furthermore, additional factors affecting IQ were identified, including the treatment administered (i.e., CRT; p = 0.02) and a younger age at diagnosis (p = 0.003), and the modifying effect of the treatment protocols was also noted (p = 0.04). Conclusion: The results suggest that NOS3 genotyping might identify individuals that are susceptible to intellectual impairment following ALL treatment.
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Affiliation(s)
- Maja Krajinovic
- Hôpital Sainte-Justine, Service d'Hématologie-Oncologie, Centre de Recherche, 3175 Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada.
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Fricker R, Hesse C, Weiss J, Tayrouz Y, Hoffmann MM, Unnebrink K, Mansmann U, Haefeli WE. Endothelial venodilator response in carriers of genetic polymorphisms involved in NO synthesis and degradation. Br J Clin Pharmacol 2004; 58:169-77. [PMID: 15255799 PMCID: PMC1884579 DOI: 10.1111/j.1365-2125.2004.02130.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
AIMS Polymorphisms of the NOSIII gene and of the CYBA gene have been associated with a number of pathological conditions such as arterial hypertension, coronary artery disease, and myocardial infarction. Because endothelium-dependent vasodilation is impaired in these disorders, we hypothesized that polymorphisms of NOSIII or CYBA might modulate endothelial function of venous capacitance vessels already before cardiovascular disease becomes overt. METHODS Endothelium-dependent and -independent venodilation was assessed by measuring local vascular responses to bradykinin and sodium nitroprusside in the dorsal hand vein after preconstriction with phenylephrine in 72 healthy male Caucasians after careful exclusion of cardiovascular risk factors. Genotyping was performed for polymorphisms of the NOSIII gene (T-786C, G894T, (CA)(n)) and the CYBA gene (C242T). RESULTS Genotype distribution for each polymorphism followed the Hardy-Weinberg equilibrium. In all studied single nucleotide polymorphisms no significant difference between the respective genotypes and the venodilator response to either sodium nitroprusside or bradykinin was observed, and the number of CA repeat copies was not related to the venodilator response to bradykinin. Mean venodilation induced by bradykinin 50 ng min(-1) (+/-SEM) for homozygote carriers of the single nucleotide polymorphisms was 48.9 +/- 8.5% venodilation (G894T; wild type: 49.8 +/- 6.9), 50.3 +/- 11.0% venodilation (T-786C; wild type: 42.6 +/- 5.2), and 30.4 +/- 9.1% venodilation (C242T; wild type: 49.2 +/- 6.0), respectively. CONCLUSIONS This study suggests that the studied polymorphisms of NOSIII and CYBA do not significantly modulate endothelium-dependent venodilation in individuals without vascular risk factors.
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Affiliation(s)
- Ruth Fricker
- Department of Internal Medicine VI, Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, D-69120 Heidelberg, Germany
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Theppeang K, Schwartz BS, Lee BK, Lustberg ME, Silbergeld EK, Kelsey KT, Parsons PJ, Todd AC. Associations of Patella Lead With Polymorphisms in the Vitamin D Receptor, δ-Aminolevulinic Acid Dehydratase and Endothelial Nitric Oxide Synthase Genes. J Occup Environ Med 2004; 46:528-37. [PMID: 15213514 DOI: 10.1097/01.jom.0000128151.94272.5b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A cross-sectional analysis was performed to evaluate associations of polymorphisms in the vitamin D receptor (VDR), delta-aminolevulinic acid dehydratase (ALAD), and endothelial nitric oxide synthase (eNOS) genes with patella lead concentrations in 652 lead workers in the Republic of Korea. There was a wide range of patella lead (from below detection limit to 946 microg Pb/g bone mineral), with a mean (standard deviation) of 75.2 (101.0). There were no associations of ALAD or eNOS genotypes with patella lead, but workers with the VDR B allele had significantly (P value < 0.05) higher patella lead (on average, 25% or approximately 6.6 microg Pb/g bone mineral) than lead workers with the VDR bb genotype. There was evidence that the relation between age and patella lead was modified by both the VDR and eNOS genotypes.
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Affiliation(s)
- Keson Theppeang
- Departments of Environmental Health Sciences, Johns Hopkins School of Medicine and Bloomberg School of Public Health, Baltimore, Maryland, USA
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Lustberg ME, Schwartz BS, Lee BK, Todd AC, Silbergeld EK. The G894-T894 Polymorphism in the Gene for Endothelial Nitric Oxide Synthase and Blood Pressure in Lead-Exposed Workers From Korea. J Occup Environ Med 2004; 46:584-90. [PMID: 15213521 DOI: 10.1097/01.jom.0000128158.32391.85] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We evaluated whether the G -T polymorphism in exon 7 of the endothelial nitric oxide synthase (eNOS) gene is associated with blood pressure or modifies the relation between lead dose and blood pressure in 803 lead workers in Korea. A total of 84.9% of individuals were homozygous GG, 14.4% heterozygous GT, and 0.8% homozygous TT. The T allele was not significantly associated with systolic or diastolic blood pressure. The prevalence of hypertension did not differ by T status (OR = 0.82; 95% CI = 0.50-1.37). There was no evidence of effect modification by eNOS genotype on relations of lead dose with blood pressure. These data provide no evidence that the T allele is associated with higher blood pressure or modifies the association of lead dose with blood pressure.
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Affiliation(s)
- Mark E Lustberg
- Department of Epidemiology and Preventive Medicine, University of Maryland Baltimore, Baltimore, Maryland 21205, USA
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Schmidt MA, Chakrabarti AK, Kehrer C, Pfeninnger D, Brook RD, Kaciroti N, Duvernoy C, Killeen AA, Rajagopalan S. Interactive effects of the ACE DD polymorphism with the NOS III homozygous G849T (Glu298-->Asp) variant in determining endothelial function in coronary artery disease. Vasc Med 2004; 8:177-83. [PMID: 14989558 DOI: 10.1191/1358863x03vm486oa] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The products of nitric oxide synthase (NOS) and angiotensin-converting enzyme (ACE) play a critical role in determining vessel wall structure and function. Polymorphisms in both genes have been independently demonstrated to influence propensity to cardiovascular events. The purpose of this study was to determine the influence of the homozygous G849T (Glu298-->Asp) polymorphism in NOS III on peripheral conduit artery endothelial function and to elucidate the modifier role, if any, of a common ACE polymorphism. Three hundred and ninety-seven consecutive subjects presenting to the cardiac catheterization laboratory of the University of Michigan over a period of 18 months were recruited. DNA was extracted and polymerase chain reaction (PCR) analysis for ACE and NOS polymorphisms performed. Patients with homozygosity for G849T at both loci (TT) who belong to DD and II ACE genotype (groups 1 and 2) and those who are negative for this polymorphism (GG) and belong to either DD or II genotype (groups 3 and 4) were identified. The four groups then underwent determination of conduit endothelial function. Heterozygosity of Glu298-Asp or the ID variant of the ACE were not studied. Median FMD value in the TT-DD group was 0.20 (-3.17, 2.01) compared with 2.23% (-0.29, 4.17) in the GG-II group. Median values in the TT-II and the GG-DD groups were 3.04 (-1.16, 6.61) and 2.46% (-1.83, 6.52) respectively. These values were not statistically significant (p > 0.05 by one-way ANOVA). Median nitroglycerin-mediated dilation in the four groups did not differ between the four groups (p = NS by ANOVA). Atherosclerosis burdens as assessed by angiography were not different across the groups. In conclusion, the homozygous NOS III variant (GG) status does not seem to interact additively with the ACE homozygous DD genotype in determining flow-mediated vasodilation in individuals with established atherosclerosis and pre-existent endothelial dysfunction.
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Affiliation(s)
- Michael A Schmidt
- Section of Vascular Medicine, Division of Cardiology, University of Michigan School of Medicine, Ann Arbor, MI 48109-0273, USA
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Paradossi U, Ciofini E, Clerico A, Botto N, Biagini A, Colombo MG. Endothelial function and carotid intima-media thickness in young healthy subjects among endothelial nitric oxide synthase Glu298-->Asp and T-786-->C polymorphisms. Stroke 2004; 35:1305-9. [PMID: 15073390 DOI: 10.1161/01.str.0000126482.86708.37] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE To assess the role of the endothelial nitric oxide synthase (eNOS) gene variants as risk factors for early atherosclerosis, we sought to investigate whether two polymorphisms located in the exon 7 (Glu298-->Asp) and in the promoter region (T-786-->C) of the eNOS gene were associated with functional changes in the endothelium and carotid intima-media thickness (IMT). METHODS Endothelium-dependent flow-mediated brachial artery dilation (FMD), endothelium-independent dilation response to glyceryl trinitrate (GTN), and carotid IMT were assessed by high-resolution ultrasound in 118 healthy young nonsmoker subjects (30.1+/-0.5 years) genotyped for the eNOS Glu298-->Asp and T-786-->C polymorphisms. RESULTS Carotid IMT was inversely related to FMD by univariate analysis (r=-0.28, P=0.002) and after adjustment for possible confounders in all the subjects (P<0.01). Asp homozygotes had a significantly lower FMD than Glu carriers (Glu/Glu: 15.0%+/-1.0%, Glu/Asp: 13.3%+/-0.7%, Asp/Asp: 9.6%+/-1.6%; P=0.005), whereas FMD was unaffected by the T-786-->C variant. Neither the Glu298-->Asp nor the T-786-->C polymorphisms influenced the GTN-mediated dilation. With respect to Glu carriers, Asp/Asp genotype displayed a significantly greater carotid IMT (Glu/Glu: 0.37+/-0.01 mm, Glu/Asp: 0.35+/-0.01 mm, Asp/Asp: 0.45+/-0.03 mm; P=0.0002) and significant correlations between carotid IMT and FMD (r=-0.48, P=0.04) and between carotid IMT and resting brachial artery diameter (r=0.70, P=0.001). No difference in IMT was found across the T-786-->C genotypes. By multivariate regression analysis, Asp/Asp genotype was the only significant and independent predictor of flow-mediated brachial artery dilation (FMD) (P=0.04) and carotid intima-media thickness (IMT) (P=0.006). CONCLUSIONS The eNOS Glu298-->Asp polymorphism may be related to early atherogenesis.
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Affiliation(s)
- Umberto Paradossi
- CNR Institute of Clinical Physiology, G. Pasquinucci Hospital, Massa, Italy
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Chang K, Baek SH, Seung KB, Kim PJ, Ihm SH, Chae JS, Kim JH, Hong SJ, Choi KB. The Glu298Asp polymorphism in the endothelial nitric oxide synthase gene is strongly associated with coronary spasm. Coron Artery Dis 2003; 14:293-9. [PMID: 12826928 DOI: 10.1097/01.mca.0000073080.69657.71] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Coronary spasm seems to be associated with coronary nitric oxide deficiency. OBJECTIVES We investigated whether the Glu298Asp polymorphism in the endothelial nitric oxide synthase (eNOS) gene is a definite risk factor for coronary spasm and whether diffuse spasm involving normal-looking coronary artery correlates significantly with the Glu298Asp polymorphism, in contrast with focal spasm superimposed on an atherosclerotic plaque. METHODS A polymerase chain reaction followed by restriction fragment length polymorphism analysis was performed in 118 control participants and in 102 patients with variant angina and a similar degree of atherosclerotic burden. Patients with coronary spasm were divided into diffuse spasm and focal spasm subgroups according to morphological criteria. RESULTS There was a significantly higher incidence of the Glu298Asp polymorphism in the coronary spasm group than in the control group (21.5% compared with 8.5%, P=0.006). Multiple logistic regression analysis using risk factors and the Glu298Asp polymorphism showed that the most important predictive factor for coronary spasm was the Glu298Asp polymorphism (odds ratio 2.83, 95% confidence interval 1.25-6.41, P=0.009). The diffuse spasm subgroup had a significantly higher frequency of the Glu298Asp polymorphism than the control group (25.9% compared with 8.5%, P=0.002). However, the focal spasm subgroup did not differ from the control group in the frequency of Glu298Asp polymorphism. CONCLUSION The Glu298Asp polymorphism in the eNOS gene is a definite risk factor for coronary spasm, especially for diffuse coronary spasm. This result supports the notion that diffuse coronary spasm is significantly associated with endothelial dysfunction, in contrast to focal spasm.
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Affiliation(s)
- Kiyuk Chang
- Department of Internal Medicine, Catholic University of Korea, Seoul, South Korea
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Brown KS, Kluijtmans LAJ, Young IS, Woodside J, Yarnell JWG, McMaster D, Murray L, Evans AE, Boreham CA, McNulty H, Strain JJ, Mitchell LE, Whitehead AS. Genetic evidence that nitric oxide modulates homocysteine: the NOS3 894TT genotype is a risk factor for hyperhomocystenemia. Arterioscler Thromb Vasc Biol 2003; 23:1014-20. [PMID: 12689917 DOI: 10.1161/01.atv.0000071348.70527.f4] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Mild hyperhomocystenemia is an independent, graded risk factor for cardiovascular disease. Genetic determinants of hyperhomocystenemia include functional polymorphisms in several folate/homocysteine metabolic enzymes. Nitric oxide may also modulate plasma homocysteine (tHcy) concentrations, either by direct inhibition of methionine synthase or via an indirect effect on folate catabolism. METHODS AND RESULTS The hypothesis that the endothelial nitric oxide synthase (NOS3) G894T polymorphism is a genetic determinant of tHcy concentrations was tested in 2 independent healthy adult populations. In both populations, NOS3 genotype was significantly associated with tHcy concentrations in nonsmokers with low folate (P=0.03 for each). Models were constructed to adjust for known determinants of tHcy concentrations and test for interactions between NOS3 genotype and these determinants in nonsmokers from each population. NOS3 genotype remained a significant determinant of tHcy concentrations after adjustment. Interactions between NOS3 genotype and serum folate were significant in both populations, and the interaction between NOS3 genotype and MTHFR C677T genotype was significant in the larger population. CONCLUSIONS These data indicate that the NOS3 894TT genotype is a risk factor for elevated tHcy in healthy nonsmoking adults with low serum folate and supports the hypothesis that nitric oxide modulates homocysteine through an effect on folate catabolism.
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Affiliation(s)
- Karen S Brown
- Department of Pharmacology and Center for Pharmacogenetics, University of Pennsylvania School of Medicine, 153 Johnson Pavilion, 3620 Hamilton Walk, Philadelphia, PA 19104-6084, USA
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Colombo MG, Andreassi MG, Paradossi U, Botto N, Manfredi S, Masetti S, Rossi G, Clerico A, Biagini A. Evidence for association of a common variant of the endothelial nitric oxide synthase gene (Glu298-->Asp polymorphism) to the presence, extent, and severity of coronary artery disease. Heart 2002; 87:525-8. [PMID: 12010932 PMCID: PMC1767141 DOI: 10.1136/heart.87.6.525] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Genetic variants of endothelial nitric oxide synthase (eNOS) could influence individual susceptibility to coronary artery disease. OBJECTIVE To assess whether Glu298-->Asp polymorphism of the eNOS gene is associated with the occurrence and severity of angiographically defined coronary artery disease in the Italian population. METHODS Polymerase chain reaction/restriction fragment length polymorphism analysis was done to detect the Glu298-->Asp variant of the eNOS gene in 201 patients with coronary artery disease and 114 controls. The severity of coronary artery disease was expressed by the number of affected vessels and by the Duke scoring system. RESULTS The frequencies of the eNOS Glu/Glu, Glu/Asp, and Asp/Asp genotypes in the coronary artery disease group were significantly different from those of controls (45.3%, 38.8%, and 15.9% v 42.1%, 51.8%, and 6.1%, respectively; chi2 = 8.589, p = 0.0136). In comparison with subjects who had a Glu298 allele in the eNOS gene, the risk of coronary artery disease was increased among Asp/Asp carriers (odds ratio 2.9, 95% confidence interval 1.2 to 6.8, p = 0.01) and was independent of the other common risk factors (p = 0.04). There was a significant association between the eNOS Glu298-->Asp variant and both the number of stenosed vessels (mean (SEM), 2.3 (0.1) for Asp/Asp v 1.9 (0.1) and 1.8 (0.1) for Glu/Glu and Glu/Asp, respectively; p = 0.01) and the Duke score (56.1 (3.1) for Asp/Asp v 46.7 (2.0) and 46.1 (1.9) for Glu/Glu and Glu/Asp, respectively; p = 0.02). CONCLUSIONS Glu298-->Asp polymorphism of the eNOS gene appears to be associated with the presence, extent, and severity of angiographically assessed coronary artery disease.
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Affiliation(s)
- M G Colombo
- CNR Institute of Clinical Physiology, G Pasquinucci Hospital, Massa, Italy.
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