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Mahgoup EM, Khaleel SA, El-Mahdy MA, Abd-Allah AR, Zweier JL. Role of cytoglobin in cigarette smoke constituent-induced loss of nitric oxide bioavailability in vascular smooth muscle cells. Nitric Oxide 2022; 119:9-18. [PMID: 34875385 PMCID: PMC8752519 DOI: 10.1016/j.niox.2021.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/22/2021] [Accepted: 12/03/2021] [Indexed: 02/03/2023]
Abstract
Cytoglobin (Cygb) has been identified as the major nitric oxide (NO) metabolizing protein in vascular smooth muscle cells (VSMCs) and is crucial for the regulation of vascular tone. In the presence of its requisite cytochrome B5a (B5)/B5 reductase-isoform-3 (B5R) reducing system, Cygb controls NO metabolism through the oxygen-dependent process of NO dioxygenation. Tobacco cigarette smoking (TCS) induces vascular dysfunction; however, the role of Cygb in the pathophysiology of TCS-induced cardiovascular disease has not been previously investigated. While TCS impairs NO biosynthesis, its effect on NO metabolism remains unclear. Therefore, we performed studies in aortic VSMCs with tobacco smoke extract (TSE) exposure to investigate the effects of cigarette smoke constituents on the rates of NO decay, with focus on the alterations that occur in the process of Cygb-mediated NO metabolism. TSE greatly enhanced the rates of NO metabolism by VSMCs. An initial increase in superoxide-mediated NO degradation was seen at 4 h of exposure. This was followed by much larger progressive increases at 24 and 48 h, accompanied by parallel increases in the expression of Cygb and B5/B5R. siRNA-mediated Cygb knockdown greatly decreased these TSE-induced elevations in NO decay rates. Therefore, upregulation of the levels of Cygb and its reducing system accounted for the large increase in NO metabolism rate seen after 24 h of TSE exposure. Thus, increased Cygb-mediated NO degradation would contribute to TCS-induced vascular dysfunction and partial inhibition of Cygb expression or its NO dioxygenase function could be a promising therapeutic target to prevent secondary cardiovascular disease.
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Affiliation(s)
- Elsayed M Mahgoup
- Department of Internal Medicine, Division of Cardiovascular Medicine, And the EPR Center, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA; Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Sahar A Khaleel
- Department of Internal Medicine, Division of Cardiovascular Medicine, And the EPR Center, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA; Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mohamed A El-Mahdy
- Department of Internal Medicine, Division of Cardiovascular Medicine, And the EPR Center, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA; Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Adel R Abd-Allah
- Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Jay L Zweier
- Department of Internal Medicine, Division of Cardiovascular Medicine, And the EPR Center, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA.
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Lessons from the post-genomic era: Globin diversity beyond oxygen binding and transport. Redox Biol 2020; 37:101687. [PMID: 32863222 PMCID: PMC7475203 DOI: 10.1016/j.redox.2020.101687] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022] Open
Abstract
Vertebrate hemoglobin (Hb) and myoglobin (Mb) were among the first proteins whose structures and sequences were determined over 50 years ago. In the subsequent pregenomic period, numerous related proteins came to light in plants, invertebrates and bacteria, that shared the myoglobin fold, a signature sequence motif characteristic of a 3-on-3 α-helical sandwich. Concomitantly, eukaryote and bacterial globins with a truncated 2-on-2 α-helical fold were discovered. Genomic information over the last 20 years has dramatically expanded the list of known globins, demonstrating their existence in a limited number of archaeal genomes, a majority of bacterial genomes and an overwhelming majority of eukaryote genomes. In vertebrates, 6 additional globin types were identified, namely neuroglobin (Ngb), cytoglobin (Cygb), globin E (GbE), globin X (GbX), globin Y (GbY) and androglobin (Adgb). Furthermore, functions beyond the familiar oxygen transport and storage have been discovered within the vertebrate globin family, including NO metabolism, peroxidase activity, scavenging of free radicals, and signaling functions. The extension of the knowledge on globin functions suggests that the original roles of bacterial globins must have been enzymatic, involved in defense against NO toxicity, and perhaps also as sensors of O2, regulating taxis away or towards high O2 concentrations. In this review, we aimed to discuss the evolution and remarkable functional diversity of vertebrate globins with particular focus on the variety of non-canonical expression sites of mammalian globins and their according impressive variability of atypical functions.
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Gomes BRB, de Sousa GLS, Ott D, Murgott J, de Sousa MV, de Souza PEN, Roth J, Veiga-Souza FH. Cytoglobin Attenuates Neuroinflammation in Lipopolysaccharide-Activated Primary Preoptic Area Cells via NF-κB Pathway Inhibition. Front Mol Neurosci 2019; 12:307. [PMID: 31920538 PMCID: PMC6920097 DOI: 10.3389/fnmol.2019.00307] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/28/2019] [Indexed: 01/09/2023] Open
Abstract
Cytoglobin (Cygb) is a hexacoordinate protein, associated with the transport of oxygen, nitric oxide scavenging, tumor suppression and protection against oxidative stress and inflammation. This protein is expressed in brain areas including the preoptic area (POA) of the anterior hypothalamus, the region responsible for the regulation of body temperature. In this study, we show that Cygb is upregulated in the rat hypothalamus 2.5 h and 5 h after intravenous administration of lipopolysaccharide (LPS). We investigated the effect of treatment with Cygb in POA primary cultures stimulated with LPS for 4 h. The levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) were measured and the results showed that Cygb reduced the concentrations of both cytokines. We further observed a decrease in immunoreactivity of the inflammatory transcription factor nuclear factor-κB (NF-κB), but not NF-IL6 and STAT3, in the nucleus of Cygb-treated POA cells. These findings suggest that Cygb attenuates the secretion of IL-6 and TNF-α in LPS-stimulated POA primary cultures via inhibition of the NF-κB signaling pathway, indicating that this protein might play an important role in the control of neuroinflammation and fever.
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Affiliation(s)
- Bruna R B Gomes
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, Institute of Biology, University of Brasília, Brasília, Brazil
| | | | - Daniela Ott
- Veterinary Physiology, Faculty of Veterinary Medicine, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Jolanta Murgott
- Veterinary Physiology, Faculty of Veterinary Medicine, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Marcelo V de Sousa
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, Institute of Biology, University of Brasília, Brasília, Brazil
| | - Paulo E N de Souza
- Laboratory of Electron Paramagnetic Resonance, Institute of Physics, University of Brasília, Brasília, Brazil
| | - Joachim Roth
- Veterinary Physiology, Faculty of Veterinary Medicine, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Fabiane H Veiga-Souza
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, Institute of Biology, University of Brasília, Brasília, Brazil.,School of Ceilandia, University of Brasília, Brasília, Brazil
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da Conceição RR, de Souza JS, de Oliveira KC, Romano RM, de Barros Maciel RM, Dias-da-Silva MR, Romano MA, Chiamolera MI, Giannocco G. Evaluation of neuroglobin and cytoglobin expression in adult rats exposed to silver nanoparticles during prepubescence. Metab Brain Dis 2019; 34:705-713. [PMID: 30701417 DOI: 10.1007/s11011-019-0386-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 01/20/2019] [Indexed: 02/06/2023]
Abstract
Silver nanoparticles (AgNPs) are clusters of silver atoms with diameters that range from 1 to 100 nm. Due to the various shapes and large surface areas, AgNPs have been employed in the food and textile industries and medical fields. Therefore, because of the widespread use of these compounds, the aim of this study was to evaluate the effect of AgNP exposure on the gene and protein expression levels of Neuroglobin (Ngb) and Cytoglobin (Cygb), in the rat cortex, hippocampus and cerebellum. Post-natal day (PND) 21 male Wistar rats were randomly divided into three groups. One group received 15 μg/kg body weight of AgNP by gavage another group received 30 μg/kg and the control group that received saline, from PND23 to PND58. On PND102 the animals were euthanized and the cortex, hippocampus and cerebellum were isolated and evaluated for gene and protein expression levels of Nbg and Cygb. The results demonstrated that the 30 μg/kg AgNP group displayed increased gene and protein expression of Cygb in the cortex. In the Hippocampus, AgNP exposure did not modulate gene or protein expression levels of Ngb and Cygb. In cerebellum the Ngb gene and protein expression was increased with both doses of AgNP. AgNP exposure during prepubescence can modulate the gene and protein expression levels of Ngb and Cygb in adulthood. Furthermore, the observed modulation was specific to the cerebellum, and cortex, and was dose dependent.
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Affiliation(s)
- Rodrigo Rodrigues da Conceição
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil.
| | - Janaina Sena de Souza
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Kelen Carneiro de Oliveira
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, da Conceição RR, Rua Simeao Camargo Varela de Sa, 03, Parana, 85040-080, Brazil
| | - Rui Monteiro de Barros Maciel
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Magnus Régios Dias-da-Silva
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Marco Aurélio Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, da Conceição RR, Rua Simeao Camargo Varela de Sa, 03, Parana, 85040-080, Brazil
| | - Maria Izabel Chiamolera
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Gisele Giannocco
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brazil
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Van Acker ZP, Luyckx E, Dewilde S. Neuroglobin Expression in the Brain: a Story of Tissue Homeostasis Preservation. Mol Neurobiol 2018; 56:2101-2122. [DOI: 10.1007/s12035-018-1212-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/26/2018] [Indexed: 12/19/2022]
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Kim SY, Sim S, Choi HG. Active and passive smoking impacts on asthma with quantitative and temporal relations: A Korean Community Health Survey. Sci Rep 2018; 8:8614. [PMID: 29872096 PMCID: PMC5988685 DOI: 10.1038/s41598-018-26895-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 05/09/2018] [Indexed: 11/17/2022] Open
Abstract
This study aimed to evaluate the relations of smoking with asthma and asthma-related symptoms, considering quantitative and temporal influences. The 820,710 Korean adults in the Korean Community Health Survey in 2009, 2010, 2011, and 2013 were included and classified as non-smoker, past smoker or current smoker. Total smoking years, total pack-years, and age at smoking onset were assessed. Information on wheezing, exercise wheezing, and aggravation of asthma in the past 12 months and asthma diagnosis history and current treatment was collected. Multiple logistic regression analysis with complex sampling was used. Current and former smokers showed significant positive relations with wheezing, exercise wheezing, asthma ever, current asthma, and asthma aggravation. Current smokers demonstrated higher adjusted odd ratios (AORs) for wheezing, exercise wheezing, and asthma aggravation than former smokers. Former smokers showed higher AORs than current smokers for current asthma treatment. Longer passive smoking was related to wheezing and exercise wheezing. Greater age at smoking onset and duration since cessation were negatively related to wheezing, exercise wheezing, and current asthma; total pack-years demonstrated proportional associations with these symptoms. Former, current, and passive smoking was positively correlated with wheezing and exercise wheezing. Total pack-years and early initiation were increasingly related to asthma.
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Affiliation(s)
- So Young Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Songyong Sim
- Department of Statistics, Hallym University, Chuncheon, Korea
| | - Hyo Geun Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea.
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Cytoglobin affects tumorigenesis and the expression of ulcerative colitis-associated genes under chemically induced colitis in mice. Sci Rep 2018; 8:6905. [PMID: 29720595 PMCID: PMC5931983 DOI: 10.1038/s41598-018-24728-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/29/2018] [Indexed: 02/07/2023] Open
Abstract
Cytoglobin (Cygb) is a member of the hemoglobin family and is thought to protect against cellular hypoxia and oxidative stress. These functions may be particularly important in inflammation-induced cancer, e.g., in patients with ulcerative colitis (UC). In this study, we investigated the development of inflammation and tumors in a murine model of inflammation-induced colorectal cancer using a combined treatment of azoxymethane and dextran sulfate sodium. A bioinformatics analysis of genome-wide expression data revealed increased colonic inflammation at the molecular level accompanied by enhanced macroscopic tumor development in Cygb-deficient mice. Moreover, the expression of the UC-associated gene neurexophilin and PC-esterase domain family member 4 (Nxpe4) depended on the presence of Cygb in the inflamed colonic mucosa. Compared to wild type mice, RT-qPCR confirmed a 14-fold (p = 0.0003) decrease in Nxpe4 expression in the inflamed colonic mucosa from Cygb-deficient mice. An analysis of Cygb protein expression suggested that Cygb is expressed in fibroblast-like cells surrounding the colonic crypts. Histological examinations of early induced lesions suggested that the effect of Cygb is primarily at the level of tumor promotion. In conclusion, in this model, Cygb primarily seemed to inhibit the development of established microadenomas.
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Kim SY, Sim S, Choi HG. Active, passive, and electronic cigarette smoking is associated with asthma in adolescents. Sci Rep 2017; 7:17789. [PMID: 29259221 PMCID: PMC5736689 DOI: 10.1038/s41598-017-17958-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 12/04/2017] [Indexed: 01/20/2023] Open
Abstract
The present study investigated the associations of active, passive, and electronic cigarette (E-cigarette) smoking with asthma in Korean adolescents. We used the cross-sectional study of Korea Youth Risk Behavior Web-based Survey conducted in 2011, 2012 and 2013. Active smoking was classified into 4 groups (0 days, 1-5 days, 6-19 days, and ≥20 days a month). Passive smoking was also categorized into 4 groups (0 days, 1-2 days, 3-4 days, and ≥5 days a week). E-cigarette was defined as yes or no in the last 30 days. Age, sex, obesity, region of residence, economic level, and parental educational level were adjusted for as confounders. Smoking variables were adjusted for one another. Adjusted odd ratios (AORs) and 95% confidence intervals (CIs) were calculated using multiple logistic regression analysis with complex sampling. In total, 2.3% (4,890/216,056) of participants reported asthma in the past 12 months. Active smoking was significantly associated with asthma (AOR [95% CI] of smoking ≥20 days/month = 1.57 [1.38-1.77], P < 0.001). Passive smoking was also related with asthma (AOR [95% CI] of smoking ≥5 days/week = 1.40 [1.28-1.53], P < 0.001). E-cigarette showed positive relation with asthma, although the effects of past smoking history could not be excluded (AOR [95% CI] = 1.12 [1.01-1.26], P = 0.027).
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Affiliation(s)
- So Young Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Songyong Sim
- Department of Statistics, Hallym University, Chuncheon, Korea
| | - Hyo Geun Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea.
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da Conceição RR, de Souza JS, de Oliveira KC, de Barros Maciel RM, Romano MA, Romano RM, da Silva MRD, Chiamolera MI, Giannocco G. Anatomical specificity of the brain in the modulation of Neuroglobin and Cytoglobin genes after chronic bisphenol a exposure. Metab Brain Dis 2017; 32:1843-1851. [PMID: 28721559 DOI: 10.1007/s11011-017-0066-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/06/2017] [Indexed: 01/23/2023]
Abstract
The aim of this study was to investigate the influence of Bisphenol A (BPA) exposure on Neuroglobin (Ngb) and Cytoglobin (Cygb) as well as oxidative stress gene expression in the cerebellum, hippocampus, hypothalamus and cortex. Male Wistar rats were randomly divided into 3 groups: Control and two groups receiving 2 different daily BPA dosages, 5 or 25 mg/kg from postnatal day 50 (PND50) through PND90 and they were euthanized at PND105. In the cortex, we found an increase in Ngb gene expression and also in superoxide dismutase 1 and Catalase (Cat). In the cerebellum, we found an increase in Ngb and Cat, in the hypothalamus, there was a decrease in Cygb and an increase in glutathione peroxidase and Cat and in hypoxia-inducible factor 1 alpha (Hif1α) at the low dosage and a decrease in Hif1α at the high BPA dosage. Finally, in the hippocampus, we observed a decrease in Ngb and Cygb and an increase in Hif1α. In summary, BPA promotes the modulation of both Ngb and Cygb, but such changes occur by different mechanisms depending on the exposure dose and anatomical area.
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Affiliation(s)
- Rodrigo Rodrigues da Conceição
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Janaina Sena de Souza
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Kelen Carneiro de Oliveira
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Rui Monteiro de Barros Maciel
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Marco Aurélio Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Renata Marino Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Magnus Régios Dias da Silva
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Maria Izabel Chiamolera
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Gisele Giannocco
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil.
- Department of Biological Sciences, Universidade Federal de São Paulo, Diadema, SP, Brazil.
- Laboratório de Endocriologia Molecular e Translacional, Departamento de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil.
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Atopic dermatitis is associated with active and passive cigarette smoking in adolescents. PLoS One 2017; 12:e0187453. [PMID: 29091936 PMCID: PMC5665603 DOI: 10.1371/journal.pone.0187453] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 10/19/2017] [Indexed: 12/05/2022] Open
Abstract
Objective The relationship between passive smoking and atopic dermatitis has previously been reported, but few studies have simultaneously evaluated the association of atopic dermatitis with active and passive smoking. Methods The relationships between atopic dermatitis and active and passive smoking were evaluated in Korean adolescents. We used a large, representative, population-based survey (The Korea Youth Risk Behavior Web-based Survey) conducted in 2011 and 2012. Active smoking was classified into 3 groups (0 days, 1–19 days, and ≥ 20 days/month). Passive smoking was categorized into 3 groups (0 days, 1–4 days, and ≥ 5 days/week). Atopic dermatitis diagnosed by a medical doctor either during the past 1 month or during the participant’s lifetime was surveyed. Age, sex, obesity status, region of residence, economic level, and parental educational level of the participants were adjusted as confounders. Adjusted odds ratios (AORs) and 95% confidence intervals (CI) were calculated using multiple logistic regression analysis with complex sampling. Results A total of 6.8% (10,020/135,682) of the participants reported atopic dermatitis during the last 12 months. Active smoking was significantly associated with atopic dermatitis (previous 12 months) (AOR [95% CI] of smoking ≥ 20 days/month = 1.18 [1.07–1.29]; 1–19 days/month = 1.11 [0.99–1.23], P = 0.002). Passive smoking was also related to atopic dermatitis (previous 12 months) (AOR [95% CI] of smoking ≥ 5 days/week = 1.12 [1.05–1.20]; 1–4 days/week = 1.08 [1.03–1.13], P < 0.001). Conclusion Atopic dermatitis was significantly associated with active and passive smoking in Korean adolescents.
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