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Barroso MV, Graça-Reis A, Cattani-Cavalieri I, Gitirana LB, Valenca SS, Lanzetti M. Mate tea reduces high fat diet-induced liver and metabolic disorders in mice. Biomed Pharmacother 2018; 109:1547-1555. [PMID: 30551407 DOI: 10.1016/j.biopha.2018.11.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 10/28/2018] [Accepted: 11/02/2018] [Indexed: 12/15/2022] Open
Abstract
High-fat diet (HFD)-induced obesity is a worldwide health problem and can cause lipid accumulation in the liver. We evaluated the hepatoprotective effect of mate tea treatment in mice submitted to an HFD. C57BL/6 mice were fed an HFD for 13 weeks with and without mate tea. A separate group of mice was treated with fenofibrate as a positive control (a regular drug for lipid disorders). Histological analyses, glucose tolerance tests (GTT), and quantification of mediators related to lipid peroxidation, oxidative stress and blood biomarkers for lipid profile were performed. The weight of animals and major organs related to hepatic steatosis was determined, and proinflammatory cytokines and the participation of the Nrf2 pathway and adiponectin were evaluated. Mate tea prevented the accumulation of lipid droplets in hepatocytes as well as weight gain in animals submitted to the HFD. Mate tea treatment also prevented increases in the liver weight, heart weight and amount of visceral and subcutaneous white adipose tissue. Mate tea was able to prevent the deregulation of glucose uptake, as evaluated by GTT, and improved the indicators of oxidative stress, such as nitrite levels, catalase activity, and oxidative damage, as evaluated by protein carbonylation and the MDA levels. Mate tea had an anti-inflammatory effect, preventing the increase of IL-1β and KC and upregulating the expression of Nrf2. Mate tea prevented insulin increase and HDL cholesterol decrease but did not affect total cholesterol or triglycerides levels. Treatment also prevented adiponectin increase. Mate tea may be a good resource to reduce hepatic steatosis in the future since it has anti-diabetic, anti-inflammatory and antioxidant effects, which prevent the accumulation of fat in the liver.
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Affiliation(s)
- Marina Valente Barroso
- Instituto de Microbiologia Paulo de Goes, Univeridade Federal do Rio de Janeiro, Brazil; Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriane Graça-Reis
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Lycia Brito Gitirana
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Samuel Santos Valenca
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Manuella Lanzetti
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Munakata S, Ishimori K, Kitamura N, Ishikawa S, Takanami Y, Ito S. Oxidative stress responses in human bronchial epithelial cells exposed to cigarette smoke and vapor from tobacco- and nicotine-containing products. Regul Toxicol Pharmacol 2018; 99:122-128. [PMID: 30227175 DOI: 10.1016/j.yrtph.2018.09.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/13/2018] [Accepted: 09/12/2018] [Indexed: 12/15/2022]
Abstract
The use of novel tobacco- and nicotine-containing vapor products that do not combust tobacco leaves is on the rise worldwide. The emissions of these products typically contain lower numbers and levels of potentially harmful chemicals compared with conventional cigarette smoke. These vapor products may therefore elicit fewer adverse biological effects. We compared the effects of emissions from different types of such products, i.e., our proprietary novel tobacco vapor product (NTV), a commercially available heat-not-burn tobacco product (HnB), and e-cigarette (E-CIG), and a combustible cigarette in a human bronchial epithelial cell line. The aqueous extract (AqE) of the test product was prepared by bubbling the produced aerosol into medium. Cells were exposed to the AqEs of test products, and then glutathione oxidation, Nrf2 activation, and secretion of IL-8 and GM-CSF were examined. We found that all endpoints were similarly perturbed by exposure to each AqE, but the effective dose ranges were different between cigarette smoke and the tobacco- and nicotine-containing vapors. These results demonstrate that the employed assays detect differences between product exposures, and thus may be useful to understand the relative potential biological effects of tobacco- and nicotine-containing products.
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Affiliation(s)
- Satoru Munakata
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
| | - Kanae Ishimori
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
| | - Nobumasa Kitamura
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
| | - Shinkichi Ishikawa
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
| | - Yuichiro Takanami
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
| | - Shigeaki Ito
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa, 227-8512, Japan.
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Gündüzöz M, Birgin İritaş S, Tutkun L, Büyükşekerci M, Pinar Çetintepe S, Bal C, Alişik M, Erdoğan S, Yilmaz H, Erel Ö. A new potential biomarker in early diagnosis of firefighter lung function impairment: dynamic thiol/disulphide homeostasis. Cent Eur J Public Health 2018; 26:190-194. [DOI: 10.21101/cejph.a4972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 11/15/2022]
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Zhu W, Huang Y, Ye Y, Wang Y. Deferoxamine preconditioning ameliorates mechanical ventilation-induced lung injury in rat model via ROS in alveolar macrophages: a randomized controlled study. BMC Anesthesiol 2018; 18:116. [PMID: 30121078 PMCID: PMC6098841 DOI: 10.1186/s12871-018-0576-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 08/07/2018] [Indexed: 12/22/2022] Open
Abstract
Background Mechanical ventilation (MV) can provide effective breathing support; however, ventilatior-induced lung injury (VILI) has also been widely recognized in clinical practice, including in the healthy lung. Unfortunately, the morbidity and mortality of VILI remain unacceptably high, and no satisfactory therapeutic effect can be achieved. The current study aimed to examine the effects of iron chelator preconditioning on the mitochondrial reactive oxygen species (ROS) in alveolar macrophages and pathological lung injury in VILI. Methods Twenty four healthy male Sprague–Dawley (SD) rats (250–300 g in weight) were randomly divided into 3 groups, including the control group (NC group, n = 8), the high-volume mechanical ventilation group (HV group, n = 8), and the deferoxamine treatment group (HV + DFO group, n = 8). Rats in the HV and HV + DFO groups were subjected to high-volume MV at a dose of 40 ml/kg. DFO was administered at a dose of 200 mg/kg 15 min prior to over-ventilation. Spontaneously breathing anesthetized rats were used as the controls. The animals were sacrificed after 4 h of high-volume ventilation or under control conditions, the animals were sacrificed. Purified alveolar macrophages from bronchoalveolar lavage fluid (BALF) and lung tissue were collected for further analysis through light microscopy and flow cytometry. Results Compared with the controls, the high-volume-ventilated rats had exhibited typical lung edema and histological lung injury, and ROS were markedly increased in alveolar macrophages and mitochondria. Moreover, all indices of VILI were remarkably different in rats treated with DFO preconditioning. DFO could ameliorate lung injury in the mechanically ventilated SD rat model. Conclusions DFO preconditioning contributes to mitigating the histological lung damage while reducing ROS levels in alveolar macrophages and mitochondria, suggesting that iron metabolism in alveolar macrophages may participate in VILI.
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Affiliation(s)
- Weilin Zhu
- Department of Anesthesia, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China.
| | - Yuansi Huang
- Department of Anesthesia, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yuqiong Ye
- Department of Anesthesia, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yafeng Wang
- Department of Anesthesia, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
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Role of asthma and intolerance to acetylsalicylic acid on the redox profile in nasal polyp tissue. Eur Arch Otorhinolaryngol 2018; 275:2027-2033. [PMID: 29948268 DOI: 10.1007/s00405-018-5034-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/06/2018] [Indexed: 10/14/2022]
Abstract
PURPOSE Nasal polyposis is a chronic inflammatory disease of the mucosa of the nasal cavity and paranasal sinuses. The etiology of nasal polyposis is unclear; however, it may be associated with asthma and intolerance to acetylsalicylic acid, possibly altering the redox profile. The study intends to compare the redox profile in polyps surgically removed from three clinical groups of patients with nasal polyposis who were divided according to the presence of asthma and intolerance to acetylsalicylic acid. METHODS Patients were divided into three groups: nasal polyposis only (n = 30); nasal polyposis and asthma (n = 19); and nasal polyposis, asthma and intolerance to acetylsalicylic acid (n = 10). The following redox evaluations were performed: enzymatic antioxidant activity of superoxide dismutase, glutathione peroxidase, hydrogen peroxide consumption and glutathione S-transferase; non-enzymatic antioxidant levels of vitamin C, vitamin E and glutathione; levels of the oxidative damage biomarkers carbonyl groups (measuring protein damage) and malondialdehyde (measuring lipid peroxidation); and nitrite and nitrate levels. RESULTS Compared with the polyposis only group, hydrogen peroxide consumption, glutathione S-transferase, vitamin E and malondialdehyde were lower in the asthma group. Total glutathione (0.12 ± 0.01 vs. 33.34 ± 10.48 µmol/mg) and nitrite and nitrate (0.06 ± 0.01 vs. 15.95 ± 1.38 nmol/mg) levels were higher in the nasal polyposis, asthma and intolerance to acetylsalicylic acid group. CONCLUSIONS In patients with nasal polyposis, asthma may alter the redox profile associated with the hydrogen peroxide and lipid damage pathways, whereas asthma and intolerance to acetylsalicylic acid increase nitrite and nitrate and total glutathione levels.
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Yokohira M, Yamakawa K, Nakano-Narusawa Y, Hashimoto N, Kanie S, Yoshida S, Imaida K. Characteristics of surfactant proteins in tumorigenic and inflammatory lung lesions in rodents. J Toxicol Pathol 2018; 31:231-240. [PMID: 30393427 PMCID: PMC6206284 DOI: 10.1293/tox.2018-0025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 05/08/2018] [Indexed: 12/13/2022] Open
Abstract
Surfactant proteins (SPs) are essential for the proper structure and respiratory
function of the lungs. There are four subtypes of SPs: SP-A, SP-B, SP-C, and SP-D. The
expectorant drug ambroxol hydrochloride is clinically used to stimulate pulmonary
surfactant and airway serous secretion. In addition, previous studies showed that ambroxol
regulated SP production and attenuated pulmonary inflammation, with ambroxol hydrochloride
being found to suppress quartz-induced lung inflammation via stimulation
of pulmonary surfactant and airway serous secretion. In this study, we investigated the
expression of SP-A, SP-B, SP-C, and SP-D in neoplastic and inflammatory lung lesions in
rodents, as well as their possible application as potential markers for diagnostic
purposes. SP-B and SP-C showed strong expression in lung hyperplasia and adenoma, whereas
SP-A and SP-D were expressed in the mucus or exudates of inflammatory alveoli. Rodent
tumorigenic hyperplasic tissues induced by various carcinogens were positive for napsin A,
an aspartic proteinase involved in the maturation of SP-B; this indicated a focal increase
in type II pneumocytes in the lungs. Therefore, high expression of napsin A in the
alveolar walls may serve as a useful marker for prediction of the tumorigenic potential of
lung hyperplasia in rodents.
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Affiliation(s)
- Masanao Yokohira
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Keiko Yamakawa
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Yuko Nakano-Narusawa
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Nozomi Hashimoto
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Shohei Kanie
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Shota Yoshida
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Katsumi Imaida
- Onco-Pathology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
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Leem AY, Kim HY, Kim YS, Park MS, Chang J, Jung JY. Association of serum bilirubin level with lung function decline: a Korean community-based cohort study. Respir Res 2018; 19:99. [PMID: 29792214 PMCID: PMC5966910 DOI: 10.1186/s12931-018-0814-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 05/14/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Bilirubin has been reported to be associated with respiratory diseases due to its antioxidant action. We aimed to evaluate the relationship between serum bilirubin concentration and annual lung function decline in the Korean general population. METHODS The study included 7986 subjects aged 40-69 years from the Ansung-Ansan cohort database I (2001-2002)-III (2005-2006). We analyzed the relationships between serum bilirubin level and forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), FEV1/FVC, and mean forced expiratory flow between 25 and 75% of FVC (FEF25-75%) at baseline, as well as the annual average changes in these lung parameters. RESULTS The FEV1, FVC, and FEF25-75% were significantly associated with serum bilirubin levels after adjustment for age, sex, body mass index (BMI), and smoking status (all P < 0.001). When stratified according to smoking status, these relationships were significant in never-smokers. Additionally, serum bilirubin level was negatively associated with the annual decline in FEV1 and FVC, and positively associated with the annual decline in FEV1/FVC after adjustment for age, sex, BMI, baseline lung function, and smoking status (all P < 0.001). CONCLUSIONS We found significant associations of serum bilirubin levels with FEV1, FVC, and FEF25-75% in the general population, especially in never-smokers. Moreover, serum bilirubin levels were related with the annual decline in FEV1, FVC, and FEV1/FVC ratio.
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Affiliation(s)
- Ah Young Leem
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Ha Yan Kim
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Sam Kim
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Moo Suk Park
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Joon Chang
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Ji Ye Jung
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Disease, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
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Fei X, Zhang PY, Zhang X, Zhang GQ, Bao WP, Zhang YY, Zhang M, Zhou X. IL-17A Monoclonal Antibody Partly Reverses the Glucocorticoids Insensitivity in Mice Exposed to Ozonec. Inflammation 2018; 40:788-797. [PMID: 28194607 PMCID: PMC5429348 DOI: 10.1007/s10753-017-0523-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Exposure to ozone has been associated with airway inflammation and glucocorticoid insensitivity. This study aimed to observe the capacity of anti-murine interleukin-17A monoclonal antibody (IL-17mAb) to reverse ozone-induced glucocorticoid insensitivity and to detect its effects with glucocorticoids in protecting against airway inflammation. After C57/BL6 mice were exposed to ozone (2.5 ppm; 3 h) for 12 times over 6 weeks, PBS, IL-17mAb (50 ug/ml), dexamethasone (2 mg/kg), and combination administration of IL-17mAb (50 ug/ml) and dexamethasone (2 mg/kg) were intraperitoneally injected into mice at a dose of 0.1 ml, respectively, for 10 times over 5 weeks. At sacrifice, lung histology, airway inflammatory cells, levels of related cytokines in bronchoalveolar lavage fluid (BALF), and serum were analyzed, airway inflammatory cell infiltration density and mean linear intercept (Lm) were measured, the expression of IL-17A mRNA, glucocorticoid receptors (GR), NF-κB, and p38 mitogen-activated protein kinase (MAPK) phosphorylation were determined. We found that combination administration markedly reduced ozone-induced total inflammatory cells, especially neutrophils; inhibited levels of cytokines, including IL-8, IL-17A, and TNF-α in BALF; and suppressed airway inflammatory cell infiltration density and Lm. Additionally, combination administration significantly elevated levels of IFN-γ in BALF, decreased the dexamethasone-induced increase of IL-17A mRNA, and increased the expression of GR and decrement of NF-κB and p38MAPK phosphorylation, which are also related to glucocorticoids insensitivity. Collectively, combination administration shows profound efficacy in inhibiting certain cytokines, and IL-17 mAb partly improved the glucocorticoids insensitivity via modulating the enhanced production rate and improving expression of IL-17A induced by glucocorticoids administration and p38MAPK, NF-κB signaling pathway.
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Affiliation(s)
- Xia Fei
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Peng-Yu Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Xue Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Guo-Qing Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Wu-Ping Bao
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Ying-Ying Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China
| | - Min Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China.
| | - Xin Zhou
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, No. 100, Haining Road, Shanghai, 200080, China.
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Kentson M, Leanderson P, Jacobson P, Persson HL. Oxidant status, iron homeostasis, and carotenoid levels of COPD patients with advanced disease and LTOT. Eur Clin Respir J 2018; 5:1447221. [PMID: 29696082 PMCID: PMC5912708 DOI: 10.1080/20018525.2018.1447221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 02/24/2018] [Indexed: 12/28/2022] Open
Abstract
Background: The pathogenesis of chronic obstructive pulmonary disease (COPD) is associated with oxidative stress. Both iron (Fe) and oxygen are involved in the chemical reactions that lead to increased formation of reactive oxygen species. Oxidative reactions are prevented by antioxidants such as carotenoids. Objective: To study the differences in Fe status, carotenoid levels, healthy eating habits, and markers of inflammation and oxidative damage on proteins in subjects with severe COPD ± long-term oxygen therapy (LTOT) and lung-healthy control subjects. Methods: Sixty-six Caucasians with advanced COPD (28 with LTOT) and 47 control subjects were included. Questionnaires about general health, lifestyle, and dietary habits were answered. Lung function tests and blood sampling were performed. Results: COPD subjects (±LTOT) did not demonstrate increased oxidative damage, assessed by protein carbonylation (PC), while levels of soluble transferrin receptors (sTfRs) were slightly elevated. Soluble TfRs, which is inversely related to Fe status, was negatively associated with PC. Levels of carotenoids, total and β-cryptoxanthin, α- and β-carotenes, were significantly lower in COPD subjects, and their diet contained significantly less fruits and vegetables. Lutein correlated inversely with IL-6, lycopene correlated inversely with SAT, while β-carotene was positively associated with a Mediterranean-like diet. Conclusions: Fe could favor oxidative stress in COPD patients, suggesting a cautious use of Fe prescription to these patients. COPD subjects ate a less healthy diet than control subjects did and would, therefore, benefit by dietary counseling. COPD patients with hypoxemia are probably in particular need of a lycopene-enriched diet.
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Affiliation(s)
- M Kentson
- Division of Medicine, Ryhov Hospital, Jönköping, Sweden.,Department of Medical and Health Sciences (IMH), Linköping University, Linköping, Sweden
| | - P Leanderson
- Department of Occupational and Environmental Medicine, Department of Clinical and Experimental Medicine (IKE), Linköping University, Linköping, Sweden
| | - P Jacobson
- Department of Respiratory Medicine, Department of Medical and Health Sciences (IMH), Linköping University, Linköping, Sweden
| | - H L Persson
- Department of Respiratory Medicine, Department of Medical and Health Sciences (IMH), Linköping University, Linköping, Sweden
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Calciano L, Portas L, Corsico AG, Olivieri M, Degan P, Ferrari M, Fois A, Pasini AMF, Pasini A, Zanolin ME, de Marco R, Accordini S. Biomarkers related to respiratory symptoms and lung function in adults with asthma. J Breath Res 2018; 12:026012. [PMID: 29167414 DOI: 10.1088/1752-7163/aa9c86] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND There is a need for easily measurable biomarkers that are able to identify different levels of asthma severity. AIM To assess the association between peripheral blood cell counts, fractional nitric oxide in exhaled air (FeNO), urinary biomarkers of oxidative stress (8-hydroxy-2'-deoxyguanosine and 8-isoprostane), and asthma severity in adult patients from the general population. METHODS In the Gene Environment Interactions in Respiratory Diseases study, 287 subjects with asthma (aged 20-64) were identified from the general population in Verona (Italy) (2008-2010). Self-reported asthma attacks, asthma-like symptoms and the use of hospital services in the past year were synthesized in a score of respiratory symptoms (SRS). The association of biomarkers with SRS and lung function measures (pre-bronchodilator FEV1% predicted and FEV1/FVC) was assessed using quasi-Poisson and Gaussian regression models, respectively. RESULTS Eosinophils (ratio of expected scores: RES[95%CI] = 1.19[1.09,1.30]), basophils (RES[95%CI] = 1.24[1.10,1.40]), lymphocytes (RES[95%CI] = 1.27[1.12,1.45]) and FeNO (RES[95%CI] = 1.18[1.02,1.37]) were positively associated with SRS. However, only eosinophils (RES[95%CI] = 1.15[1.02,1.30]) and lymphocytes (RES[95%CI] = 1.25[1.06,1.47]) showed an independent association. Furthermore, eosinophils (change in the expected outcome for 1-SD increase: CEO[95%CI] = -1.18[-2.09, -0.27]%), basophils (CEO[95%CI] = -1.24[-2.16, -0.33]%) and lymphocytes (CEO[95%CI] = -1.07[-1.99, -0.14]%) were individually, but not independently, associated with FEV1/FVC. Finally, neutrophils were negatively associated with FEV1% predicted (CEO[95%CI] = -2.22[-4.00, -0.44]%). CONCLUSIONS We identified a pattern of association between a set of biomarkers and asthma endotypes in adult patients from the general population, which could improve understanding of the heterogeneity and severity of the disease and could be useful in defining targeted therapeutic approaches.
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Affiliation(s)
- Lucia Calciano
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
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Ejazi MA, Shameem M, Bhargava R, Ahmad Z, Akhtar J, Khan NA, Alam MM, Alam MA, Adil Wafi CG. Correlation of exhaled carbon monoxide level with disease severity in chronic obstruction pulmonary disease. Lung India 2018; 35:401-406. [PMID: 30168459 PMCID: PMC6120306 DOI: 10.4103/lungindia.lungindia_11_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Introduction: Amplification of airway inflammation and its destruction due to oxidative stress is a major step in the pathogenesis of chronic obstruction pulmonary disease (COPD). Exhaled carbon monoxide (eCO) may be quantified to evaluate the airway inflammation and oxidative stress in such patients. Objectives: To assess the disease severity of COPD and treatment response by measuring eCO as a biomarker. Materials and Methods: COPD patients diagnosed according to the global initiative for chronic obstructive lung disease guidelines and healthy individuals as controls were selected. One hundred and fifty patients with COPD and 125 controls were included in the study. Participants were further subdivided on the basis of their smoking habits. Clinical examinations and spirometry were done to diagnose COPD by following the standard protocol. eCO was measured using a piCO + Smokerlyzer (Breath CO Monitor, Bedfont Scientific Ltd., Kent, UK). It was a single-center cross-sectional study. Results: Mean (± standard error of mean) CO levels in ex-smokers with COPD were higher (5.21 ± 1.546 ppm; P < 0.05) than in nonsmoking controls (1.52 ± 0.571 ppm) but were lower than in current smokers with COPD (12.55 ± 4.514 ppm; P < 0.05). eCO levels were higher in current smokers with COPD (12.55 ± 4.514 ppm; P < 0.05) compared to healthy smokers (9.71 ± 5.649). There was a negative correlation between eCO and forced expiratory volume in 1 s (FEV1) in COPD (r = −0.28; P < 0.05). The mean eCO level was decreased (6.291–4.332; P < 0.001) with improvement in lung function (FEV1 38.75%–50.65%: P < 0.05) after treatment with inhaled steroid. Conclusion: Our study concludes that quantification of eCO level in COPD varies with different grades of airway obstruction and to measure the treatment response. Measuring the level of eCO can be used to assess the indirect assessment of airway inflammation, oxidative stress, and severity of airway obstruction in COPD patients.
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Affiliation(s)
- Md Arshad Ejazi
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Shameem
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Rakesh Bhargava
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Zuber Ahmad
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Jamal Akhtar
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Nafeees A Khan
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Md Mazhar Alam
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Md Arif Alam
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - C G Adil Wafi
- Department of Pulmonary Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Avci E, Avci GA. Important Biomarkers that Play a Role in the Chronic Obstructive Pulmonary Disease Process. J Med Biochem 2018; 37:46-53. [PMID: 30581341 PMCID: PMC6294106 DOI: 10.1515/jomb-2017-0035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 05/31/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) that includes multiple mechanisms such as inflammation, infection, smoking, hypoxia, and lack of antioxidant response can cause oxidative stress. In our study, we aimed to determine the changes in some oxidative stress [malondialdehyde and glutathione] and some cellular immunity markers (neopterin and TGF-b) in patients diagnosed with COPD and determine the damage to the organism. METHODS While the high-performance liquid chromatography (HPLC) method (Immuchrom kit, Germany) was utilized to determine MDA, GSH and NP levels, the ELISA method was used for TGF-b levels. RESULTS All obtained data regarding each parameter were compared with both COPD and healthy individuals and between parameters. There was a statistically significant difference between the control group of healthy subjects and COPD group in all parameters (p<0.05). A negative and correlation between oxidant MDA and antioxidant GSH parameters was determined (p=-0.394). CONCLUSIONS As a result, it was seen that oxidative balance changed in the patient group and cellular immunity increased. When the obtained data and literature are taken into account, these changes occurring in oxidative balance and cellular immunity are of importance in determining the development in the pathogenesis of COPD, treatment op - tions and their risks for heart disease in advance.
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Affiliation(s)
- Emre Avci
- Faculty of Science and Arts, Department of Molecular Biology and Genetics, Biochemistry, Hitit University, Corum, Turkey
| | - Gulcin Alp Avci
- Faculty of Science and Arts, Department of Molecular Biology and Genetics, Molecular Microbiology, Hitit University, Corum, Turkey
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63
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Marginean C, Popescu MS, Vladaia M, Tudorascu D, Pirvu DC, Petrescu F. Involvement of Oxidative Stress in COPD. CURRENT HEALTH SCIENCES JOURNAL 2018; 44:48-55. [PMID: 30622755 PMCID: PMC6295184 DOI: 10.12865/chsj.44.01.08] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 03/27/2018] [Indexed: 02/05/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a disease that affects the lungs and is defined by a variety of symptoms that combined with co-morbidities lead to a decline of the patients quality of life. The principal etiology of chronic obstructive pulmonary disease is smoking and air pollution that lead to oxidative and carbonyl stress. This review based on a search of PubMed, OxLIP+/SOLO (Bodleian Libraries) database (from 1991 to 2017) of relevant articles based on assessment of oxidative stress pathways involvement in COPD. Intracellular reactions that take place in organisms and aerobic cells have as by-products reactive oxygen species (ROS) and free radicals. Oxidative stress involved in pathogenesis of COPD is the result of lowered antioxidative potential combined with increased burden of oxidants. Molecular mechanisms underlying COPD pathways are not yet well understood, despite intensive research all over the world. A change in balance between Oxidants and antioxidants in the lungs as well as within the circulatory system, gene polymorphisms, and activation of transcription factors contribute to the molecular pathogenesis of COPD. Future research is needed in order to identify which patients will develop in time a susceptibility to damage caused by ROS and to determine if controlling ROS will have an effect on the progression of COPD.
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Affiliation(s)
- C Marginean
- University of Medicine and Pharmacy of Craiova, Romania
| | - M S Popescu
- Department of Internal Medicine, County Clinical Emergency Hospital of Craiova
| | - M Vladaia
- PhD student, Doctoral School, University of Medicine and Pharmacy of Craiova, Romania
| | - D Tudorascu
- University of Medicine and Pharmacy of Craiova, Romania
| | - D C Pirvu
- University of Medicine and Pharmacy of Craiova, Romania
| | - F Petrescu
- University of Medicine and Pharmacy of Craiova, Romania
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64
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Bondy AL, Craig RL, Zhang Z, Gold A, Surratt JD, Ault AP. Isoprene-Derived Organosulfates: Vibrational Mode Analysis by Raman Spectroscopy, Acidity-Dependent Spectral Modes, and Observation in Individual Atmospheric Particles. J Phys Chem A 2017; 122:303-315. [DOI: 10.1021/acs.jpca.7b10587] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amy L. Bondy
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109 United States
| | - Rebecca L. Craig
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109 United States
| | - Zhenfa Zhang
- Department
of Environmental Sciences and Engineering, Gillings School of Global
Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Avram Gold
- Department
of Environmental Sciences and Engineering, Gillings School of Global
Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jason D. Surratt
- Department
of Environmental Sciences and Engineering, Gillings School of Global
Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Andrew P. Ault
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109 United States
- Department
of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
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65
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He X, Li T, Kang N, Zeng H, Ren S, Zong D, Li J, Cai S, Chen P, Chen Y. The protective effect of PRMT6 overexpression on cigarette smoke extract-induced murine emphysema model. Int J Chron Obstruct Pulmon Dis 2017; 12:3245-3254. [PMID: 29138553 PMCID: PMC5680965 DOI: 10.2147/copd.s144881] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Cigarette smoke exposure is the most common risk factor for emphysema, which is one of the major pathologies of COPD. Protein arginine methyltransferase 6 (PRMT6) is a nuclear enzyme that specially catalyzes dimethylation of R2 in histone H3 (H3R2me2a). H3R2me2a prevents trimethylation of H3K4 (H3K4me3), which is located in the transcription start sites of genes in mammalian genomes. We attempted to determine the expression of PRMT6 in human samples, and investigate whether the upregulation of PRMT6 expression can attenuate the development of cigarette smoke extract (CSE)-induced emphysema. Further experiments were performed to elucidate the molecular mechanisms involved. Materials and methods Human lung tissues were obtained from patients undergoing pneumonectomy for benign pulmonary lesions. BALB/c mice were treated with lentiviral vectors intratracheally and injected with CSE three times. The protein expression of PRMT6, H3R2me2a, and H3K4me3 in human and mouse samples, as well as B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), and endothelial nitric oxide synthase (eNOS) in mice were detected in lung homogenates by Western blotting. The mRNA expression of cyclooxygenase-2, interleukin-6, Bcl-2, Bax, and eNOS in mice was measured by quantitative real-time polymerase chain reaction. Results The expression of PRMT6 was significantly downregulated in the pulmonary parenchyma in smokers with COPD as well as in mice treated with CSE. Overexpression of PRMT6 was detected in the CSE + Lenti-PRMT6 group of mice, which reversed the expression of H3R2me2a and H3K4me3. Inflammation, apoptosis, and oxidative stress levels were severe in the CSE-treated emphysema mice compared with the control group, which was inhibited by the overexpression of PRMT6. Conclusion The overexpression of PRMT6 might inhibit inflammation, apoptosis, and oxidative stress in CSE-induced emphysema mediated by H3R2me2a.
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Affiliation(s)
- Xue He
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Tiao Li
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Naixin Kang
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Huihui Zeng
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Siying Ren
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Dandan Zong
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Jinhua Li
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Shan Cai
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Ping Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Yan Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital.,Research Unit of Respiratory Disease.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, Hunan, China
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Fetterman JL, Sammy MJ, Ballinger SW. Mitochondrial toxicity of tobacco smoke and air pollution. Toxicology 2017; 391:18-33. [PMID: 28838641 PMCID: PMC5681398 DOI: 10.1016/j.tox.2017.08.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/08/2017] [Accepted: 08/09/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Jessica L Fetterman
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, United States
| | - Melissa J Sammy
- Department of Pathology, Division of Molecular and Cellular Pathology, University of Alabama, Birmingham, AL, United States
| | - Scott W Ballinger
- Department of Pathology, Division of Molecular and Cellular Pathology, University of Alabama, Birmingham, AL, United States.
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67
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Propolis reversed cigarette smoke-induced emphysema through macrophage alternative activation independent of Nrf2. Bioorg Med Chem 2017; 25:5557-5568. [DOI: 10.1016/j.bmc.2017.08.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/07/2017] [Accepted: 08/15/2017] [Indexed: 01/01/2023]
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68
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Ugurlu E, Kilic-Toprak E, Can I, Kilic-Erkek O, Altinisik G, Bor-Kucukatay M. Impaired Hemorheology in Exacerbations of COPD. Can Respir J 2017; 2017:1286263. [PMID: 29089816 PMCID: PMC5635272 DOI: 10.1155/2017/1286263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/07/2017] [Accepted: 08/21/2017] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterized by progressive airflow limitation. Cardiovascular-related comorbidities are established to contribute to morbidity and mortality especially during exacerbations. The aim of the current study was to determine alterations in hemorheology (erythrocyte aggregation, deformability) in newly diagnosed COPD patients and their response to medical treatment and to compare with values of COPD patients with exacerbations. MATERIALS AND METHODS The study comprised 13 COPD patients, 12 controls, and 16 COPD patients with exacerbations. The severity of COPD was determined according to Global Initiative for Chronic Obstructive Lung Disease guidelines. Red blood cell (RBC) deformability and aggregation were measured by an ektacytometer. RESULTS RBC deformability of COPD patients with exacerbations was decreased compared to the other groups. Erythrocyte aggregation and plasma fibrinogen of COPD patients determined during exacerbations were higher than control. CONCLUSION Decreased RBC deformability and increased aggregation associated with exacerbations of COPD may serve as unfavorable mechanisms to worsen oxygenation and thus clinical symptoms of the patient. Treatment modalities that modify rheological parameters might be beneficial.
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Affiliation(s)
- Erhan Ugurlu
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Emine Kilic-Toprak
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
| | - Ilknur Can
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
| | - Goksel Altinisik
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Melek Bor-Kucukatay
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
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Zhou MX, Li GH, Sun B, Xu YW, Li AL, Li YR, Ren DM, Wang XN, Wen XS, Lou HX, Shen T. Identification of novel Nrf2 activators from Cinnamomum chartophyllum H.W. Li and their potential application of preventing oxidative insults in human lung epithelial cells. Redox Biol 2017; 14:154-163. [PMID: 28942193 PMCID: PMC5608562 DOI: 10.1016/j.redox.2017.09.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 08/25/2017] [Accepted: 09/11/2017] [Indexed: 12/16/2022] Open
Abstract
Human lung tissue, directly exposed to the environmental oxidants and toxicants, is apt to be harmed to bring about acute or chronic oxidative insults. The nuclear factor erythroid 2-related factor 2 (Nrf2) represents a central cellular defense mechanism, and is a target for developing agents against oxidative insult-induced human lung diseases. Our previous study found that the EtOH extract of Cinnamomum chartophyllum protected human bronchial epithelial cells against oxidative insults via Nrf2 activation. In this study, a systemic phytochemical investigation of the aerial parts of C. chartophyllum led to the isolation of thirty chemical constituents, which were further evaluated for their Nrf2 inducing potential using NAD(P)H: quinone reductase (QR) assay. Among these purified constituents, a sesquiterpenoid bearing α, β-unsaturated ketone group, 3S-(+)-9-oxonerolidol (NLD), and a diphenyl sharing phenolic groups, 3, 3′, 4, 4′-tetrahydroxydiphenyl (THD) significantly activated Nrf2 and its downstream genes, NAD(P)H quinone oxidoreductase 1 (NQO-1), and γ-glutamyl cysteine synthetase (γ-GCS), and enhanced the nuclear translocation and stabilization of Nrf2 in human lung epithelial cells. Importantly, NLD and THD had no toxicities under the Nrf2 inducing doses. THD also demonstrated a potential of interrupting Nrf2-Keap1 protein–protein interaction (PPI). Furthermore, NLD and THD protected human lung epithelial cells against sodium arsenite [As(III)]-induced cytotoxicity. Taken together, we conclude that NLD and THD are two novel Nrf2 activators with potential application of preventing acute and chronic oxidative insults in human lung tissue. The chemical compositions of Cinnamomum chartophyllum are firstly identified. The active ingredients supporting the biological functions of C. chartophyllum are verified. NLD and THD are identified to be Nrf2 activators for the first time. NLD and THD protect human lung epithelial cells against As(III)-induced cytotoxicity.
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Affiliation(s)
- Ming-Xing Zhou
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Guo-Hui Li
- Department of Pharmacy, Jinan Maternity and Child Care Hospital, Jinan, PR China
| | - Bin Sun
- National Glycoengineering Research Center, Shandong University, Jinan 250012, PR China
| | - You-Wei Xu
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Ai-Ling Li
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Yan-Ru Li
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Dong-Mei Ren
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Xiao-Ning Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Xue-Sen Wen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Hong-Xiang Lou
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - Tao Shen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, PR China.
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Ardestani ME, Onvani S, Esmailzadeh A, Feizi A, Azadbakht L. Adherence to Dietary Approaches to Stop Hypertension (DASH) Dietary Pattern in Relation to Chronic Obstructive Pulmonary Disease (COPD): A Case-Control Study. J Am Coll Nutr 2017; 36:549-555. [PMID: 28862922 DOI: 10.1080/07315724.2017.1326858] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This case-control study was designed to investigate the association between adherences to the Dietary Approaches to Stop Hypertension (DASH) diet in patients with chronic obstructive pulmonary disease (COPD) in comparison to subjects without COPD. DESIGN This is a case-control study. Usual dietary intake was assessed using a validated food frequency questionnaire. Lung function was evaluated with spirometry testing, and one of the researchers inquired about other respiratory symptoms, including chronic cough, sputum, and breathlessness. Adherence to the DASH dietary pattern was assessed according to the Fung method. SETTING This study was conducted at Alzahra University Hospital of Isfahan, Iran, in 2015. SUBJECTS Eight-four patients with COPD and 80 subjects without a history of COPD participated in study. RESULTS The mean age of participants was 57 years. Average smoking in the case group was about 27.5 pack-years. Spirometry tests including forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and FEV1/FVC were significantly lower in patients with COPD (p = 0.0001). Among COPD symptoms, cough was significantly decreased across tertiles of DASH score (p = 0.03). Significant differences were found for DASH score between patients with COPD and control subjects (19.82 + 3.63 vs 21.13 + 3.82, p = 0.02). Vitamin C, vitamin E, and dietary fiber intake were lower in patients with COPD (144.32 + 70.51 vs 166.97 + 71.88, p = 0.04, 7.49 + 3.91 vs 8.72 + 3.21, p = 0.02 and 19.34 + 7.05 vs 22.19 + 7.87, p = 0.01, respectively). CONCLUSION We observed that adherence to a DASH dietary pattern among patients with COPD was significantly lower compared to the control group. Cough was significantly decreased by increments in adherence to a DASH dietary pattern.
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Affiliation(s)
- Mohammad Emami Ardestani
- a Department of Internal Medicine (Division of Pulmonology), School of Medicine , Isfahan University of Medical Sciences, Isfahan Iran
| | - Shokouh Onvani
- b Food Security Research Center , Isfahan University of Medical Sciences , Isfahan , Iran.,c Department of Community Nutrition, School of Nutrition and Food Science , Isfahan University of Medical Sciences , Isfahan , Iran
| | - Ahmad Esmailzadeh
- b Food Security Research Center , Isfahan University of Medical Sciences , Isfahan , Iran.,c Department of Community Nutrition, School of Nutrition and Food Science , Isfahan University of Medical Sciences , Isfahan , Iran.,d Department of Community Nutrition, School of Nutritional Science and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| | - Awat Feizi
- e Department of Epidemiology and Biostatistics, Endocrinology and Metabolism Research Center , Isfahan University of Medical Sciences , Isfahan , Iran
| | - Leila Azadbakht
- b Food Security Research Center , Isfahan University of Medical Sciences , Isfahan , Iran.,c Department of Community Nutrition, School of Nutrition and Food Science , Isfahan University of Medical Sciences , Isfahan , Iran.,d Department of Community Nutrition, School of Nutritional Science and Dietetics , Tehran University of Medical Sciences , Tehran , Iran.,f Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute , Tehran University of Medical Sciences , Tehran , Iran
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71
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Levi Bolin B, Alcorn JL, Lile JA, Rush CR, Rayapati AO, Hays LR, Stoops WW. N-Acetylcysteine reduces cocaine-cue attentional bias and differentially alters cocaine self-administration based on dosing order. Drug Alcohol Depend 2017; 178:452-460. [PMID: 28711811 PMCID: PMC5576543 DOI: 10.1016/j.drugalcdep.2017.05.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/18/2017] [Accepted: 05/20/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND Disrupted glutamate homeostasis is thought to contribute to cocaine-use disorder, in particular, by enhancing the incentive salience of cocaine stimuli. n-Acetylcysteine might be useful in cocaine-use disorder by normalizing glutamate function. In prior studies, n-acetylcysteine blocked the reinstatement of cocaine seeking in laboratory animals and reduced the salience of cocaine stimuli and delayed relapse in humans. METHODS The present study determined the ability of maintenance on n-acetylcysteine (0 or 2400mg/day, counterbalanced) to reduce the incentive salience of cocaine stimuli, as measured by an attentional bias task, and attenuate intranasal cocaine self-administration (0, 30, and 60mg). Fourteen individuals (N=14) who met criteria for cocaine abuse or dependence completed this within-subjects, double-blind, crossover-design study. RESULTS Cocaine-cue attentional bias was greatest following administration of 0mg cocaine during placebo maintenance, and was attenuated by n-acetylcysteine. Cocaine maintained responding during placebo and n-acetylcysteine maintenance, but the reinforcing effects of cocaine were significantly attenuated across both maintenance conditions in participants maintained on n-acetylcysteine first compared to participants maintained on placebo first. CONCLUSIONS These results collectively suggest that a reduction in the incentive salience of cocaine-related stimuli during n-acetylcysteine maintenance may be accompanied by reductions in cocaine self-administration. These results are in agreement with, and link, prior preclinical and clinical trial results suggesting that n-acetylcysteine might be useful for preventing cocaine relapse by attenuating the incentive salience of cocaine cues.
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Affiliation(s)
- B Levi Bolin
- Department of Behavioral Science, University of Kentucky College of Medicine, 1100 Veterans Drive, Medical Behavioral Science Building Room 140, Lexington, KY 40536-0086, United States
| | - Joseph L Alcorn
- Department of Behavioral Science, University of Kentucky College of Medicine, 1100 Veterans Drive, Medical Behavioral Science Building Room 140, Lexington, KY 40536-0086, United States
| | - Joshua A Lile
- Department of Behavioral Science, University of Kentucky College of Medicine, 1100 Veterans Drive, Medical Behavioral Science Building Room 140, Lexington, KY 40536-0086, United States; Department of Psychology, University of Kentucky College of Arts and Sciences, 110 Kastle Hall, Lexington, KY 40506-0044, United States; Department of Psychiatry, University of Kentucky College of Medicine, 245 Fountain Court, Lexington, KY 40509-1810, United States
| | - Craig R Rush
- Department of Behavioral Science, University of Kentucky College of Medicine, 1100 Veterans Drive, Medical Behavioral Science Building Room 140, Lexington, KY 40536-0086, United States; Department of Psychology, University of Kentucky College of Arts and Sciences, 110 Kastle Hall, Lexington, KY 40506-0044, United States; Department of Psychiatry, University of Kentucky College of Medicine, 245 Fountain Court, Lexington, KY 40509-1810, United States
| | - Abner O Rayapati
- Department of Psychiatry, University of Kentucky College of Medicine, 245 Fountain Court, Lexington, KY 40509-1810, United States
| | - Lon R Hays
- Department of Psychiatry, University of Kentucky College of Medicine, 245 Fountain Court, Lexington, KY 40509-1810, United States
| | - William W Stoops
- Department of Behavioral Science, University of Kentucky College of Medicine, 1100 Veterans Drive, Medical Behavioral Science Building Room 140, Lexington, KY 40536-0086, United States; Department of Psychology, University of Kentucky College of Arts and Sciences, 110 Kastle Hall, Lexington, KY 40506-0044, United States; Department of Psychiatry, University of Kentucky College of Medicine, 245 Fountain Court, Lexington, KY 40509-1810, United States.
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72
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Increased expression of Siglec-9 in chronic obstructive pulmonary disease. Sci Rep 2017; 7:10116. [PMID: 28860481 PMCID: PMC5579055 DOI: 10.1038/s41598-017-09120-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/14/2017] [Indexed: 12/12/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common inflammatory lung disease. Sialic acid-binding immunoglobulin-type lectins 9 (Siglec-9) is predominantly expressed on innate immune cells and has been shown to exert regulatory effect on immune cells through glycan recognition. Soluble Siglec-9 (sSiglec-9), the extracellular region of Siglec-9, might fulfill its function partly by competitive inhibiting siglec-9 binding to its ligands; however, the role of Siglec-9 and sSiglec-9 in the pathogenesis COPD remain largely unknown. In this study, we showed that Siglec-9 expression in alveolar and peripheral blood neutrophil were increased in COPD patients by immunofluorescence and flow cytometry, respectively. Plasma levels of sSiglelc-9 were elevated in COPD patients by ELISA. In vitro, Siglec-9 expression and/or sSiglelc-9 levels were up-regulated by cigarette smoke extract (CSE), lipopolysaccharide (LPS), some cytokines, and dexamethasone (DEX). Recombinant sSiglce-9 increased oxidative burst in neutrophil and enhanced neutrophil chemotaxis toward IL-8 independent on CXCR1 and CXCR2 expression, but it did not affect neutrophil apoptosis or secretions of inflammatory cytokines. In conclusion, Siglec-9 was complementarily increased to induce a negative feedback loop to limit neutrophil activation in COPD, sSiglce-9 enhanced neutrophil ROS and chemotaxis toward IL-8 likely via competitively inhibiting ligands binding to Siglec-9.
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73
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Banerjee S, Bhattacharyya P, Mitra S, Kundu S, Panda S, Chatterjee IB. Anti- p-benzoquinone antibody level as a prospective biomarker to identify smokers at risk for COPD. Int J Chron Obstruct Pulmon Dis 2017; 12:1847-1856. [PMID: 28684907 PMCID: PMC5485895 DOI: 10.2147/copd.s134455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background and objective Identification of smokers having predisposition to COPD is important for early intervention to reduce the huge global burden of the disease. Using a guinea pig model, we have shown that p-benzoquinone (p-BQ) derived from cigarette smoke (CS) in the lung is a causative factor for CS-induced emphysema. p-BQ is also derived from CS in smokers and it elicits the production of anti-p-BQ antibody in humans. We therefore hypothesized that anti-p-BQ antibody might have a protective role against COPD and could be used as a predictive biomarker for COPD in smokers. The objective of this study was to compare the serum anti-p-BQ antibody level between smokers with and without COPD for the evaluation of the hypothesis. Methods Serum anti-p-BQ antibody concentrations of current male smokers with (n=227) or without (n=308) COPD were measured by an indirect enzyme-linked immunoabsorbent assay (ELISA) developed in our laboratory. COPD was diagnosed by spirometry according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines. Results and discussion A significant difference was observed in the serum anti-p-BQ antibody level between smokers with and without COPD (Mann–Whitney U-test =4,632.5, P=0.000). Receiver operating characteristic (ROC) curve analysis indicated that the ELISA had significant precision (area under the curve [AUC] =0.934, 95% confidence interval [CI]: 0.913–0.935) for identifying smokers with COPD from their low antibody level. The antibody cutoff value of 29.4 mg/dL was constructed from the ROC coordinates to estimate the risk for COPD in smokers. While 90.3% of smokers with COPD had a low antibody value (≤29.4 mg/dL), the majority (86.4%) of smokers without COPD had a high antibody value (≤29.4 mg/dL); 13.6% of current smokers without COPD having an antibody level below this cutoff value (odds ratio [OR] =59.3, 95% CI: 34.15–101.99) were considered to be at risk for COPD. Conclusion and future directions Our results indicate that serum anti-p-BQ antibody level may be used as a biomarker to identify asymptomatic smokers at risk for COPD for early intervention of the disease.
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Affiliation(s)
- Santanu Banerjee
- Department of Biotechnology and Dr B C Guha Centre for Genetic Engineering and Biotechnology, University College of Science and Technology, University of Calcutta
| | | | - Subhra Mitra
- Department of Pulmonary Medicine, Calcutta National Medical College
| | - Somenath Kundu
- Department of Chest Medicine, Institute of Post Graduate Medical Education and Research
| | - Samiran Panda
- National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - Indu B Chatterjee
- Department of Biotechnology and Dr B C Guha Centre for Genetic Engineering and Biotechnology, University College of Science and Technology, University of Calcutta
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Mohammed A, Gutta V, Ansari MS, Saladi Venkata R, Jamil K. Altered antioxidant enzyme activity with severity and comorbidities of chronic obstructive pulmonary disease (COPD) in South Indian population. ACTA ACUST UNITED AC 2017. [DOI: 10.1186/s40749-017-0023-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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75
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Tian Z, Zhang H, Dixon J, Traphagen N, Wyatt TA, Kharbanda K, Simet Chadwick S, Kolliputi N, Allen-Gipson DS. Cigarette Smoke Impairs A 2A Adenosine Receptor Mediated Wound Repair through Up-regulation of Duox-1 Expression. Sci Rep 2017; 7:44405. [PMID: 28337995 PMCID: PMC5364501 DOI: 10.1038/srep44405] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 01/31/2017] [Indexed: 02/03/2023] Open
Abstract
Cigarette smoke (CS) exposure and intrinsic factors such as the NADPH oxidases produce high levels of reactive oxygen species (ROS), ensuing inflammatory tissue injury. We previously demonstrated that CS-generated ROS, particularly hydrogen peroxide (H2O2), impaired adenosine stimulated wound repair. We hypothesized that CS exposure modulates expression of Dual oxidase 1 (Duox-1), a NADPH oxidases known to generate H2O2. To test this hypothesis, we used human bronchial epithelial cell line Nuli-1 and C57BL/6 mice. Cells were treated with 5% CS extract (CSE) for various periods of time, and mice were exposed to whole body CS for six weeks. Both CSE and CS treatment induced increased expression of Duox-1, and silencing of Doux-1 improved the rate of cell wound repair induced by CSE treatment. Nuli-1 cells pretreated with thapsigargin but not calcium ionophore exhibited increased Duox-1 mRNA expression. CSE treatment stimulated PKCα activation, which was effectively blocked by pretreatment with diphenylene iodonium, a NADPH oxidase inhibitor. Compared to control, lungs from CS-exposed mice showed a significant increase in PKCα activity and Duox-1 expression. Collectively, the data demonstrated that CS exposure upregulates expression of Duox-1 protein. This further leads to H2O2 production and PKCα activation, inhibiting A2AAR-stimulated wound repair.
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Affiliation(s)
- Zhi Tian
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa FL, USA
| | - Hui Zhang
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jendayi Dixon
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa FL, USA
| | - Nicole Traphagen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa FL, USA
| | - Todd A. Wyatt
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Environmental, Agricultural, and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
- Research Service, Omaha-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA
| | - Kusum Kharbanda
- Research Service, Omaha-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Nebraska Medical Center, NE, USA
| | - Samantha Simet Chadwick
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, College of Medicine, University of South Florida, Tampa FL, USA
| | - Diane S. Allen-Gipson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa FL, USA
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Allergy and Immunology, Department of Internal Medicine, College of Medicine, University of South Florida, Tampa FL, USA
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The influence of intestine-based treatment using Xuan Bai Cheng Qi Tang on the concentration of trace elements in the main organs of COPD rats. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2017. [DOI: 10.1016/j.jtcms.2017.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Dapaah G, Koffuor GA, Mante PK, Ben IO. The possible mode of antitussive and expectorant activity of the ethanol seed extracts of Picralima nitida ((Stapf) Th. & H. Durand). J Tradit Complement Med 2017; 7:133-140. [PMID: 28053900 PMCID: PMC5198831 DOI: 10.1016/j.jtcme.2016.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 03/24/2016] [Accepted: 05/09/2016] [Indexed: 11/27/2022] Open
Abstract
It has been established that Picralima nitida has antitussive effect. This study therefore aimed at determining the possible mode of antitussive and expectorant activity of an ethanolic seed extract of P. nitida (PNE). The muco-suppressant, mast cell stabilization, and the anxiolytic effects of PNE were ascertained using ammonium chloride-induced phenol red secretion in BALB/c mice; compound 48/80-induced mesenteric mast cell degranulation assay; and the open field and the elevated plus maze models respectively. Antibacterial potential was ascertained by the agar plate diffusion method and its antioxidant potential by the 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH) free radical scavenging, linoleic acid lipid peroxidation, reducing power, and total antioxidant assays. Data obtained was analyzed using One-way analysis of variance (ANOVA) with Dunnett's Multiple Comparison post hoc test. PNE (100-500 mg/kg) reduced (P ≤ 0.05-0.001) tracheal phenol red secretion. The extract (100-500 μg/ml) also dose-dependently (P ≤ 0.05-0.0001) stabilized mast cells. PNE (100-500 mg/kg) increased open arm activities in the elevated plus maze (P ≤ 0.05) as well as central zone exploration (P ≤ 0.05) in the open field test. PNE (10-50 mg/ml) showed activity against Staphylococcus aureus, Streptococcus pneumonia, Escherichia coli, Klebsiella pneumonia, and Salmonella typhi. By the assays, PNE showed significant antioxidant effect. The ethanolic seed extract of P. nitida has demonstrated very significant mast cell stabilizing, mucus suppressant, and antioxidant activity as well as substantial antibacterial and anxiolytic properties; all of which could contribute to its antitussive and expectorant property.
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Affiliation(s)
- Gabriel Dapaah
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - George Asumeng Koffuor
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Priscilla Kolibea Mante
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Inemesit Okon Ben
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Madonna University, Elele Campus, Rivers State, Nigeria
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Białas AJ, Sitarek P, Miłkowska-Dymanowska J, Piotrowski WJ, Górski P. The Role of Mitochondria and Oxidative/Antioxidative Imbalance in Pathobiology of Chronic Obstructive Pulmonary Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:7808576. [PMID: 28105251 PMCID: PMC5220474 DOI: 10.1155/2016/7808576] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 10/23/2016] [Indexed: 12/12/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common preventable and treatable disease, characterized by persistent airflow limitation that is usually progressive and associated with an enhanced chronic inflammatory response in the airways and the lung to noxious particles or gases. The major risk factor of COPD, which has been proven in many studies, is the exposure to cigarette smoke. However, it is 15-20% of all smokers who develop COPD. This is why we should recognize the pathobiology of COPD as involving a complex interaction between several factors, including genetic vulnerability. Oxidant-antioxidant imbalance is recognized as one of the significant factors in COPD pathogenesis. Numerous exogenous and endogenous sources of ROS are present in pathobiology of COPD. One of endogenous sources of ROS is mitochondria. Although leakage of electrons from electron transport chain and forming of ROS are the effect of physiological functioning of mitochondria, there are various intra- and extracellular factors which may increase this amount and significantly contribute to oxidative-antioxidative imbalance. With the coexistence with impaired antioxidant defence, all these issues lead to oxidative and carbonyl stress. Both of these states play a significant role in pathobiology of COPD and may account for development of major comorbidities of this disease.
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Affiliation(s)
- Adam Jerzy Białas
- Department of Pneumology and Allergy, 1st Chair of Internal Medicine, Medical University of Lodz, Łódź, Poland
- Healthy Aging Research Centre (HARC), Medical University of Lodz, Łódź, Poland
| | - Przemysław Sitarek
- Department of Biology and Pharmaceutical Botany, Medical University of Łódź, Łódź, Poland
| | - Joanna Miłkowska-Dymanowska
- Department of Pneumology and Allergy, 1st Chair of Internal Medicine, Medical University of Lodz, Łódź, Poland
- Healthy Aging Research Centre (HARC), Medical University of Lodz, Łódź, Poland
| | - Wojciech Jerzy Piotrowski
- Department of Pneumology and Allergy, 1st Chair of Internal Medicine, Medical University of Lodz, Łódź, Poland
- Healthy Aging Research Centre (HARC), Medical University of Lodz, Łódź, Poland
| | - Paweł Górski
- Department of Pneumology and Allergy, 1st Chair of Internal Medicine, Medical University of Lodz, Łódź, Poland
- Healthy Aging Research Centre (HARC), Medical University of Lodz, Łódź, Poland
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Kanie S, Yokohira M, Yamakawa K, Nakano-Narusawa Y, Yoshida S, Hashimoto N, Imaida K. Suppressive effects of the expectorant drug ambroxol hydrochloride on quartz-induced lung inflammation in F344 rats. J Toxicol Pathol 2016; 30:153-159. [PMID: 28458453 PMCID: PMC5406594 DOI: 10.1293/tox.2016-0050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 12/05/2016] [Indexed: 11/19/2022] Open
Abstract
Surfactant proteins (SPs) are essential to respiratory structure and function. The expectorant drug ambroxol hydrochloride is clinically prescribed to stimulate pulmonary surfactant and airway serous secretion. Therefore, ambroxol hydrochloride may affect SP production and pulmonary inflammation. Lung toxicity of fine particles of various materials has been examined previously in our in vivo bioassay using the intratracheal (i.t.) instillation approach. In the present study, we evaluated modulatory effects of ambroxol hydrochloride on quartz-induced lung inflammation in F344 rats. Male 6-week-old F344 rats were exposed by i.t. instillation to 2 mg of quartz particles suspended in 0.2 mL of saline. Ambroxol hydrochloride was administered at 0, 12, and 120 ppm in rat basal diet for 28 days, and then formalin-fixed paraffin-embedded lung, liver, and kidney samples were prepared. No changes in general condition, body and organ weights, or food consumption upon exposure to quartz were noted. The mean ambroxol intake in rats of the 12 ppm group was comparable to the human conventional dose. Histopathology of lung lesions was evaluated, and the degree of inflammation was scored. At 120 ppm, ambroxol hydrochloride significantly decreased individual lung inflammation scores for pulmonary edema and lymph follicle proliferation around the bronchiole, as well as the total inflammation score, in quartz-treated rats. Expression of SP-C in the type II alveolar cells and macrophages was greater in inflammatory lesions than in non-inflamed areas. Ambroxol treatment did not affect expression of SP-B and SP-C. In conclusion, we demonstrated that ambroxol hydrochloride relieves quartz-induced lung inflammation.
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Affiliation(s)
- Shohei Kanie
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.,Toxicology Laboratory, Discovery and Preclinical Research Division, TAIHO Pharmaceutical Co., Ltd., 224-2 Ebisuno, Hiraishi, Kawauchi-cho, Tokushima 771-0194, Japan
| | - Masanao Yokohira
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Keiko Yamakawa
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Yuko Nakano-Narusawa
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Shota Yoshida
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.,Toxicology Laboratory, Discovery and Preclinical Research Division, TAIHO Pharmaceutical Co., Ltd., 224-2 Ebisuno, Hiraishi, Kawauchi-cho, Tokushima 771-0194, Japan
| | - Nozomi Hashimoto
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Katsumi Imaida
- Onco-Pathology, Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
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Cantor JO, Shteyngart B, Cerreta JM, Ma S, Turino GM. Synergistic Effect of Hydrogen Peroxide and Elastase on Elastic Fiber Injury In Vitro. Exp Biol Med (Maywood) 2016; 231:107-11. [PMID: 16380651 DOI: 10.1177/153537020623100113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This laboratory has previously shown that hyperoxia enhances airspace enlargement in a hamster model of elastase-induced emphysema. To further understand the mechanism responsible for this finding, the effect of oxidants on elastase activity was studied in vitro, using a radiolabeled elastic fiber matrix derived from rat pleural mesothelial cells. Matrix samples were treated with either 0.1%, 1%, 3%, or 10% hydrogen peroxide (H2O2) for 1 hr, then incubated with 1.0 μg/ml porcine pancreatic elastase for 2 hrs. Radioactivity released from the matrix was used as a measure of elastolysis. Results indicate that sequential exposure to H2O2 and elastase markedly enhanced elastolysis compared to enzyme treatment alone. A 22% increase in elastolysis was seen with 0.1% H2O2 (325 vs. 396 cpm; P < 0.05), whereas samples pretreated with 1%, 3%, and 10% H2O2 showed increases of 53% (274 vs. 420 cpm; P < 0.05), 71% (381 vs. 653 cpm; P < 0.01), and 38% (322 vs. 443 cpm; P < 0.01), respectively. Exposure to various concentrations of H2O2 alone (0.1% to 10%) produced only minimal elastolysis (<20 cpm). However, 1% H2O2 was capable of degrading peptide-free desmosine and isodesmosine, suggesting that exposure to this oxidant may reduce the stability of the elastic fiber matrix. With regard to lung diseases such as emphysema, H2O2 and other oxidants derived from inflammatory cells or the environment could possibly act as priming agents for elastase-mediated breakdown of elastic fibers, resulting in amplification of lung injury.
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Affiliation(s)
- Jerome O Cantor
- St. John's University School of Pharmacy and Allied Health Sciences, Jamaica, New York 11439, USA.
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81
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Farouk A, Hassan MH, Nady MA, Abdel Hafez MF. Role of oxidative stress and outcome of various surgical approaches among patients with bullous lung disease candidate for surgical interference. J Thorac Dis 2016; 8:2936-2941. [PMID: 27867571 DOI: 10.21037/jtd.2016.10.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Bullous lung disease is characterized by formation of blebs, bullae and emphysema. We investigate the role of oxidative stress in the pathogenesis of bullous lung disease and compare between conventional thoracotomy versus video assisted thoracoscopic approach in surgical management of such patients. METHODS This study was a prospective case control study and it was carried out on 21 patients (16 males and 5 females) with bullous lung disease selected as candidate for surgical interference. This was in addition to 21 apparently healthy age and sex matched subjects selected as control group. Plasma levels of α1-antitrypsin were estimated using commercially available ELISA assay kit, while plasma levels of malondialdehyde (MDA), β-carotene, vitamin A, vitamin C and vitamin E were estimated using spectrophotometric methods. Conventional thoracotomy approach was done in thirteen patients, while, videothoracoscopic approach was done in eight patients. RESULTS There were significant higher plasma levels of MDA (P<0.001) and lower plasma levels of β-carotene (P<0.01), vitamin A, vitamin C and vitamin E (P<0.001 for each) among patients with bullous lung disease when compared with the control group. There was non-significant difference regarding the air leakage and the hospital stay among patients with bullous lung disease who managed via conventional thoracotomy approach when compared with those managed via videothoracoscopic approach. CONCLUSIONS This study proves that the oxidative stress plays an important role in the pathogenesis of bullous lung disease. Also there are no significant outcome differences between conventional thoracotomy versus video assisted thoracoscopic approach in surgical treatment of such patients.
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Affiliation(s)
- Ahmed Farouk
- Department of Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mohammed H Hassan
- Department of Medical Biochemistry and Molecular Biology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Mohammed Alaa Nady
- Department of Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt
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Vartiainen V, Bimbo LM, Hirvonen J, Kauppinen EI, Raula J. Aerosolization, Drug Permeation and Cellular Interaction of Dry Powder Pulmonary Formulations of Corticosteroids with Hydroxypropyl-β-Cyclodextrin as a Solubilizer. Pharm Res 2016; 34:25-35. [DOI: 10.1007/s11095-016-2035-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/01/2016] [Indexed: 11/29/2022]
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83
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Reactive oxygen species in organ-specific autoimmunity. AUTOIMMUNITY HIGHLIGHTS 2016; 7:11. [PMID: 27491295 PMCID: PMC4974204 DOI: 10.1007/s13317-016-0083-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/26/2016] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) have been extensively studied in the induction of inflammation and tissue damage, especially as it relates to aging. In more recent years, ROS have been implicated in the pathogenesis of autoimmune diseases. Here, ROS accumulation leads to apoptosis and autoantigen structural changes that result in novel specificities. ROS have been implicated not only in the initiation of the autoimmune response but also in its amplification and spreading to novel epitopes, through the unmasking of cryptic determinants. This review will examine the contribution of ROS to the pathogenesis of four organ specific autoimmune diseases (Hashimoto thyroiditis, inflammatory bowel disease, multiple sclerosis, and vitiligo), and compare it to that of a better characterized systemic autoimmune disease (rheumatoid arthritis). It will also discuss tobacco smoking as an environmental factor endowed with both pro-oxidant and anti-oxidant properties, thus capable of differentially modulating the autoimmune response.
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84
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Gupta I, Ganguly S, Rozanas CR, Stuehr DJ, Panda K. Ascorbate attenuates pulmonary emphysema by inhibiting tobacco smoke and Rtp801-triggered lung protein modification and proteolysis. Proc Natl Acad Sci U S A 2016; 113:E4208-17. [PMID: 27382160 PMCID: PMC4961122 DOI: 10.1073/pnas.1600056113] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cigarette smoking causes emphysema, a fatal disease involving extensive structural and functional damage of the lung. Using a guinea pig model and human lung cells, we show that oxidant(s) present in tobacco smoke not only cause direct oxidative damage of lung proteins, contributing to the major share of lung injury, but also activate Rtp801, a key proinflammatory cellular factor involved in tobacco smoke-induced lung damage. Rtp801 triggers nuclear factor κB and consequent inducible NOS (iNOS)-mediated overproduction of NO, which in combination with excess superoxide produced during Rtp801 activation, contribute to increased oxido-nitrosative stress and lung protein nitration. However, lung-specific inhibition of iNOS with a iNOS-specific inhibitor, N6-(1-iminoethyl)-L-lysine, dihydrochloride (L-NIL) solely restricts lung protein nitration but fails to prevent or reverse the major tobacco smoke-induced oxidative lung injury. In comparison, the dietary antioxidant, ascorbate or vitamin C, can substantially prevent such damage by inhibiting both tobacco smoke-induced lung protein oxidation as well as activation of pulmonary Rtp801 and consequent iNOS/NO-induced nitration of lung proteins, that otherwise lead to increased proteolysis of such oxidized or nitrated proteins by endogenous lung proteases, resulting in emphysematous lung damage. Vitamin C also restricts the up-regulation of matrix-metalloproteinase-9, the major lung protease involved in the proteolysis of such modified lung proteins during tobacco smoke-induced emphysema. Overall, our findings implicate tobacco-smoke oxidant(s) as the primary etiopathogenic factor behind both the noncellular and cellular damage mechanisms governing emphysematous lung injury and demonstrate the potential of vitamin C to accomplish holistic prevention of such damage.
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Affiliation(s)
- Indranil Gupta
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Souradipta Ganguly
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Christine R Rozanas
- Proteomics Applications Laboratory, GE Healthcare Life Sciences, Piscataway, NJ 08854
| | - Dennis J Stuehr
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195
| | - Koustubh Panda
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India;
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Hanekamp JC, Bast A. Hormesis in precautionary regulatory culture: models preferences and the advancement of science. Hum Exp Toxicol 2016; 26:855-73. [DOI: 10.1177/0960327107083414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The article focuses on flaws in the actual approaches of exposure to a chemical of recipient organisms. It demonstrates the excessive use of arguments based on adverse effects and underlines the necessity to take adaptive effects seriously. Regulators are invited to rethink their inclination to the `When in doubt, keep it out.' precautionary approach, with results in counter-productive and costly regulations. The authors are clear about the necessity to include hormesis, in the form of a toxicological insignificant exposure (TIE) level, related to the concentration, as a regulatory translation of adaptive effects. This inclusion might well be the `brake' for the looming `collision' with reality of the actual linear toxicological models. This analysis includes the advice to EPA, not to follow the `witch hunt of synthetic chemicals' as embodied in the EU REACH program. Human & Experimental Toxicology (2007) 26, 855 — 873
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Affiliation(s)
| | - Aalt Bast
- Human Toxicology and Pharmacology, Maastricht University
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86
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Ozan E, Sonmez MF, Ozan S, Colakoglu N, Yilmaz S, Kuloglu T. Effects of melatonin and vitamin C on cigarette smoke–induced damage in the kidney. Toxicol Ind Health 2016; 23:479-85. [DOI: 10.1177/0748233708089023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study was carried out to investigate smoke-induced structural and biochemical changes and protective effects of co-administered melatonin and vitamin C in the kidney. Twenty-four Wistar adult female rats were used in this study. Animals were divided into four groups. The first group rats were used as control. The second group of rats inhaled cigarette smoke. Smile smoke inhaling third and fourth group rats received melatonin and vitamin C, respectively. At the end of experimental study, kidney tissues and blood samples were taken under ether anesthesia. Tissues were prepared and examined by light microscopy. Malondialdehyde and glutathione levels and catalase activity were determined. By light microscopic observation, a decrease of Bowman space of some renal corpuscles, foamy-like tubules, dilatation and congestion of the peritubuler vessels, and atrophy of the some renal corpuscles were observed in group II. In groups III and IV melatonin and vitamin C relatively protected the kidney tissue against smoke intoxication. Biochemical examination showed that malondialdehyde and glutathione levels and catalase activity in group II were higher than in group I. Melatonin and vitamin C injection to group III and IV caused a decrease in malondialdehyde and glutathione levels. Catalase activity did not change in these groups. We have shown that cigarette smoke inhalation caused structural changes in the kidney. However, melatonin and vitamin C administration produced in some degree protection against smoke-induced damage.
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Affiliation(s)
- E Ozan
- Medical Faculty, Histology and Embryology Department, Firat University, Elazig, Turkey
| | - MF Sonmez
- Medical Faculty, Histology and Embryology Department, Erciyes University, Kayseri, Turkey
| | - S Ozan
- Veterinary Faculty, Biochemistry Department, Firat University, Elazig, Turkey
| | - N Colakoglu
- Medical Faculty, Histology and Embryology Department, Firat University, Elazig, Turkey
| | - S Yilmaz
- Veterinary Faculty, Biochemistry Department, Firat University, Elazig, Turkey
| | - T Kuloglu
- Medical Faculty, Histology and Embryology Department, Firat University, Elazig, Turkey
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87
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Antuni JD, Barnes PJ. Evaluation of Individuals at Risk for COPD: Beyond the Scope of the Global Initiative for Chronic Obstructive Lung Disease. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2016; 3:653-667. [PMID: 28848890 DOI: 10.15326/jcopdf.3.3.2016.0129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The Global initiative for chronic Obstructive Lung Disease (GOLD) Strategy is a valuable tool for clinicians in the diagnosis and management of patients with established chronic obstructive pulmonary disease (COPD). However, there are no recommendations for the evaluation of individuals, exposed to risk factors, who are most likely to develop COPD. Consequently, it is necessary to consider all of the factors that may play a role in the pathogenesis of COPD: genetic factors, gender, socioeconomic status, disadvantageous factors in childhood, lung diseases and exposure to risk factors such as smoking, biomass fuel smoke, occupational hazards and air pollution. Along with the clinical assessment, periodic spirometry should be performed to evaluate lung function and make possible early detection of individuals who will develop the disease through the rate of forced expiratory volume in 1 second (FEV1) decline. The first spirometry, periodicity, and clinically significant decline in FEV1 will encompass the cornerstones of clinical follow up. This approach allows the implementation of important interventions in order to help individuals to cease contact with risk factors and prevent progressive respiratory impairment with the consequent deterioration of quality of life and increased morbidity and mortality.
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Affiliation(s)
- Julio D Antuni
- Corporación Médica de General San Martín, Buenos Aires, Argentina
| | - Peter J Barnes
- National Heart and Lung Institute, Royal Brompton Hospital, London, United Kingdom
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88
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Bodini A, D'Orazio C, Peroni DG, Corradi M, Zerman L, Folesani G, Assael BM, Boner AL, Piacentini GL. IL-8 and pH Values in Exhaled Condensate after Antibiotics in Cystic Fibrosis Children. Int J Immunopathol Pharmacol 2016; 20:467-72. [PMID: 17880760 DOI: 10.1177/039463200702000305] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Interleukin (IL)-8 is a major factor in inflammatory response and the IL-8 levels in exhaled breath condensate (EBC) may be used as a marker of airway inflammation. Airway acidification is implicated in the pathophysiology of obstructive airway diseases and pH EBC values have been used as a marker of airway acidification. The aim of our study is to investigate whether IL-8 and pH levels in EBC of cystic fibrosis (CF) children with respiratory exacerbations change after antibiotic treatment. Lung function, IL-8 and pH EBC values were measured in fifteen CF children (mean age 11 years) with acute exacerbation before (T0) and after two weeks (T1) of antibiotic treatment. IL-8 and pH values were compared by paired t-test. A p<0.05 was considered significant. IL-8 EBC levels decreased after antibiotic treatment (TO 0.36±0.03pg/ml vs T1 0.28±0.03pg/ml; p=0.03) and pH values increased (TO 7.3610.09 vs T1 7.61±0.08; p=0.04). Results suggest possible application of EBC as a non-invasive tool to monitor efficacy of antibiotic treatment in CF patients.
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Affiliation(s)
- A Bodini
- Dipartimento di Pediatria, Università di Verona, Verona, Italy.
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89
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Martins GV, Marques AC, Fortunato E, Sales MGF. 8-hydroxy-2'-deoxyguanosine (8-OHdG) biomarker detection down to picoMolar level on a plastic antibody film. Biosens Bioelectron 2016; 86:225-234. [PMID: 27376193 DOI: 10.1016/j.bios.2016.06.052] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/01/2016] [Accepted: 06/18/2016] [Indexed: 01/12/2023]
Abstract
An innovative biosensor assembly relying on a simple and straightforward in-situ construction is presented to monitor urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) down to the pmol/L level. The sensing film of the biosensor consisted of a molecularly imprinted polymer (MIP) layer for 8-OHdG assembled on a gold electrode through electropolymerization of monomer combined with the template. The analytical features of the resulting biosensor were assessed by Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). Some experimental parameters such as the initial concentration of the monomer and the ratio template-monomer were investigated and optimized in order to finely tune the performance of the MIP-based sensor. Under optimal conditions, the developed biosensor was able to rebind 8-OHdG with a linear response against EIS from 0.1 to 100pg/ml 3.5-3500 pM. The interference of coexisting species was tested, also with calibrations on urine samples, and good selectivity towards 8-OHdG was obtained. RAMAN spectroscopy, FTIR and SEM evaluations of the prepared films confirmed the formation of a polyphenol thin-film on the electrode surface. The presence and distribution of the imprinted cavities on the MIP layer was confirmed by confocal microscopy imaging of the film, after a post-treatment with Fluorescein Isothiocyanate (FITC) labeled 8-OHdG antibody. Overall, this label-free biosensor for urinary 8-OHdG detection constitutes a promising low-cost alternative to the conventional immunoassay approaches, due to its simplicity, stability, high sensitivity and selectivity for biological sample assays, opening new doors for other applications.
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Affiliation(s)
- Gabriela V Martins
- BioMark/CINTESIS-ISEP, School of Engineering of the Polytechnique School of Porto, 4200-072 Porto, Portugal; i3N/CENIMAT, Department of Materials Science, Faculty of Sciences and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Ana C Marques
- i3N/CENIMAT, Department of Materials Science, Faculty of Sciences and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Elvira Fortunato
- i3N/CENIMAT, Department of Materials Science, Faculty of Sciences and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - M Goreti F Sales
- BioMark/CINTESIS-ISEP, School of Engineering of the Polytechnique School of Porto, 4200-072 Porto, Portugal.
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90
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Hennawy MG, Elhosseiny NM, Sultan H, Abdelfattah W, Akl Y, Sabry NA, Attia AS. The effect of α 1-antitrypsin deficiency combined with increased bacterial loads on chronic obstructive pulmonary disease pharmacotherapy: A prospective, parallel, controlled pilot study. J Adv Res 2016; 7:1019-1028. [PMID: 27857848 PMCID: PMC5106446 DOI: 10.1016/j.jare.2016.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 05/05/2016] [Accepted: 05/06/2016] [Indexed: 02/03/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is caused by α1-antitrypsin deficiency (AATD) genetic susceptibility and exacerbated by infection. The current pilot study aimed at studying the combined effect of AATD and bacterial loads on the efficacy of COPD conventional pharmacotherapy. Fifty-nine subjects (29 controls and 30 COPD patients) were tested for genetic AATD and respiratory function. The bacterial loads were determined to the patients’ group who were then given a long acting beta-agonist and corticosteroid inhaler for 6 months. Nineteen percent of the studied group were Pi∗MZ (heterozygote deficiency variant), Pi∗S (5%) (milder deficiency variant), Pi∗ZZ (10%) (the most common deficiency variant), and Pi∗Mmalton (2%) (very rare deficiency variant). The patients’ sputum contained from 0 to 8 × 108 CFU/mL pathogenic bacteria. The forced vital capacity (FVC6) values of the AAT non-deficient group significantly improved after 3 and 6 months. Patients lacking AATD and pathogenic bacteria showed significant improvement in forced expiratory volume (FEV1), FEV1/FVC6, FVC6, and 6 min walk distance (6MWD) after 6 months. However, patients with AATD and pathogenic bacteria showed only significant improvement in FEV1 and FEV1/FVC6. The findings of this pilot study highlight for the first time the role of the combined AATD and pathogenic bacterial loads on the efficacy of COPD treatment.
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Affiliation(s)
- Marwa G Hennawy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Noha M Elhosseiny
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hussein Sultan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Wael Abdelfattah
- Department of Chest Diseases and Allergy, Faculty of Medicine, Ain Shams University, Cairo 11539, Egypt
| | - Yousry Akl
- Department of Chest Diseases and Allergy, Faculty of Medicine, Cairo University, Cairo 11562, Egypt
| | - Nirmeen A Sabry
- Department of Clinical Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ahmed S Attia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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91
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Takahashi M, Kizuka Y, Ohtsubo K, Gu J, Taniguchi N. Disease-associated glycans on cell surface proteins. Mol Aspects Med 2016; 51:56-70. [PMID: 27131428 DOI: 10.1016/j.mam.2016.04.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 04/23/2016] [Indexed: 01/02/2023]
Abstract
Most of membrane molecules including cell surface receptors and secreted proteins including ligands are glycoproteins and glycolipids. Therefore, identifying the functional significance of glycans is crucial for developing an understanding of cell signaling and subsequent physiological and pathological cellular events. In particular, the function of N-glycans associated with cell surface receptors has been extensively studied since they are directly involved in controlling cellular functions. In this review, we focus on the roles of glycosyltransferases that are involved in the modification of N-glycans and their target proteins such as epidermal growth factor receptor (EGFR), ErbB3, transforming growth factor β (TGF-β) receptor, T-cell receptors (TCR), β-site APP cleaving enzyme (BACE1), glucose transporter 2 (GLUT2), E-cadherin, and α5β1 integrin in relation to diseases and epithelial-mesenchymal transition (EMT) process. Above of those proteins are subjected to being modified by several glycosyltransferases such as N-acetylglucosaminyltransferase III (GnT-III), N-acetylglucosaminyltransferase IV (GnT-IV), N-acetylglucosaminyltransferase V (GnT-V), α2,6 sialyltransferase 1 (ST6GAL1), and α1,6 fucosyltransferase (Fut8), which are typical N-glycan branching enzymes and play pivotal roles in regulating the function of cell surface receptors in pathological cell signaling.
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Affiliation(s)
- Motoko Takahashi
- Department of Biochemistry, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Yasuhiko Kizuka
- Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, Global Research Cluster, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Kazuaki Ohtsubo
- Department of Analytical Biochemistry, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto 862-0976, Japan
| | - Jianguo Gu
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsusima, Aobaku, Sendai, Miyagi 981-8558, Japan
| | - Naoyuki Taniguchi
- Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, Global Research Cluster, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan.
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92
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Abstract
Pulmonary oxidant stress plays an important pathogenetic role in disease conditions including acute lung injury/adult respiratory distress syndrome (ALI/ARDS), hyperoxia, ischemia-reperfusion, sepsis, radiation injury, lung transplantation, COPD, and inflammation. Reactive oxygen species (ROS), released from activated macrophages and leukocytes or formed in the pulmonary epithelial and endothelial cells, damage the lungs and initiate cascades of pro-inflammatory reactions propagating pulmonary and systemic stress. Diverse molecules including small organic compounds (e.g. gluthatione, tocopherol (vitamin E), flavonoids) serve as natural antioxidants that reduce oxidized cellular components, decompose ROS and detoxify toxic oxidation products. Antioxidant enzymes can either facilitate these antioxidant reactions (e.g. peroxidases using glutathione as a reducing agent) or directly decompose ROS (e.g. superoxide dismutases [SOD] and catalase). Many antioxidant agents are being tested for treatment of pulmonary oxidant stress. The administration of small antioxidants via the oral, intratracheal and vascular routes for the treatment of short- and long-term oxidant stress showed rather modest protective effects in animal and human studies. Intratracheal and intravascular administration of antioxidant enzymes are being currently tested for the treatment of acute oxidant stress. For example, intratracheal administration of recombinant human SOD is protective in premature infants exposed to hyperoxia. However, animal and human studies show that more effective delivery of drugs to cells experiencing oxidant stress is needed to improve protection. Diverse delivery systems for antioxidants including liposomes, chemical modifications (e.g. attachment of masking pegylated [PEG]-groups) and coupling to affinity carriers (e.g. antibodies against cellular adhesion molecules) are being employed and currently tested, mostly in animal and, to a limited extent, in humans, for the treatment of oxidant stress. Further studies are needed, however, in order to develop and establish effective applications of pulmonary antioxidant interventions useful in clinical practice. Although beyond the scope of this review, antioxidant gene therapies may eventually provide a strategy for the management of subacute and chronic pulmonary oxidant stress.
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Affiliation(s)
- Melpo Christofidou-Solomidou
- Institute of Environmental Medicine and Department of Pharmacology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
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93
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Labor M, Vrbica Ž, Gudelj I, Labor S, Jurić I, Plavec D. Exhaled Breath Temperature as a Novel Marker of Future Development of COPD: Results of a Follow-Up Study in Smokers. COPD 2016; 13:741-749. [DOI: 10.3109/15412555.2016.1164129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marina Labor
- Department of Pulmonology, University Hospital Center Osijek, Osijek, Croatia
- Faculty of Medicine, J.J. Strossmayer University of Osijek, Osijek, Croatia
| | - Žarko Vrbica
- Department of Pulmonology and Immunology, General Hospital Dubrovnik, Dubrovnik, Croatia
- University of Dubrovnik, Dubrovnik, Croatia
| | - Ivan Gudelj
- Department of Pulmonology, University Hospital Center Split, Split, Croatia
| | - Slavica Labor
- Department of Pulmonology, University Hospital Center Osijek, Osijek, Croatia
- Faculty of Medicine, J.J. Strossmayer University of Osijek, Osijek, Croatia
| | - Iva Jurić
- Department of Cardiology, University Hospital Center Osijek, Osijek, Croatia
| | - Davor Plavec
- Faculty of Medicine, J.J. Strossmayer University of Osijek, Osijek, Croatia
- Research Department, Children's Hospital Srebrnjak, Zagreb, Croatia
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94
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Sanguinetti CM. N-acetylcysteine in COPD: why, how, and when? Multidiscip Respir Med 2016; 11:8. [PMID: 26855777 PMCID: PMC4744393 DOI: 10.1186/s40248-016-0039-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/05/2016] [Indexed: 12/23/2022] Open
Abstract
Oxidants have long been recognized to have an important role in the pathogenesis of COPD, and in this cigarette smoke has a strong responsibility, because it generates a conspicuous amount of oxidant radicals able to modify the structure of the respiratory tract and to enhance several mechanisms that sustain lung inflammation in COPD. In fact, oxidative stress is highly increased in COPD and natural antioxidant capacities, mainly afforded by reduced glutathione, are often overcome. Thus an exogenous supplementation of antioxidant compounds is mandatory to at least partially counteract the oxidative stress. For this purpose N-acetylcysteine has great potentialities due to its capacity of directly contrasting oxidants with its free thiols, and to the possibility it has of acting as donor of cysteine precursors aimed at glutathione restoration. Many studies in vitro and in vivo have already demonstrated the antioxidant capacity of NAC. Many clinical studies have long been performed to explore the efficacy of NAC in COPD with altern results, especially when the drug was used at very low dosage and/or for a short period of time. More recently, several trials have been conducted to verify the appropriateness of using high-dose NAC in COPD, above all to decrease the exacerbations rate. The results have been encouraging, even if some of the data come from the most widely sized trials that have been conducted in Chinese populations. Although other evidence should be necessary to confirm the results in other populations of patients, high-dose oral NAC nevertheless offers interesting perspectives as add-on therapy for COPD patients.
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95
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Ghosh R, Rossner P, Honkova K, Dostal M, Sram RJ, Hertz-Picciotto I. Air pollution and childhood bronchitis: Interaction with xenobiotic, immune regulatory and DNA repair genes. ENVIRONMENT INTERNATIONAL 2016; 87:94-100. [PMID: 26655675 DOI: 10.1016/j.envint.2015.10.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 10/05/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Gene-environment interactions have been investigated for diseases such as asthma, chronic obstructive pulmonary disease, cancer etc. but acute disease like bronchitis has rarely been studied. We investigated interactions between air pollution (polycyclic aromatic hydrocarbons (PAH) and particulate matter <2.5 μm (PM2.5)) and single nucleotide polymorphisms (SNP) in EPHX1, IL10, STAT4 and XPC genes in relation to bronchitis in children aged 0-2 years. METHODS A stratified random sample of 1133 Czech children, born between 1994 and 1998 in two districts, were followed since birth, of which 626 were genotyped. Pediatrician-diagnosed bronchitis episodes were obtained from the medical records. Central-site monitors measured air pollution exposure. We used multivariable logistic regression and estimated coefficients using generalized estimating equations. Interaction was assessed between pollutants and genes and associations in genotype-specific strata were presented. False discovery rate was used to adjust for multiple comparisons. RESULTS There were 803 episodes of bronchitis with an incidence rate of 56 per 1000 child-months. We found significant gene-environment interaction between PAH and four SNPs (EPHX1, (rs2854461), STAT4 (rs16833215), XPC (rs2228001 and rs2733532)), which became non-significant after adjusting for multiple comparisons. PM2.5 interactions with two XPC SNPs (rs2228001 and rs2733532) remained significant after accounting for multiple comparisons and those with CC alleles had a more than doubling of odds, OR=2.65 (95% CI: 1.91, 3.69) and 2.72 (95% CI: 1.95, 3.78), respectively, per 25 μg/m(3) increase in exposure. CONCLUSION The findings suggest that the DNA repair gene XPC may play an important role in the air pollution-induced pathogenesis of the inflammatory disease bronchitis.
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Affiliation(s)
- Rakesh Ghosh
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States.
| | - Pavel Rossner
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Katerina Honkova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Miroslav Dostal
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Radim J Sram
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Irva Hertz-Picciotto
- Department of Public Health Sciences, University of California, Davis, United States
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96
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Rodriguez-Roisin R, Bartolome SD, Huchon G, Krowka MJ. Inflammatory bowel diseases, chronic liver diseases and the lung. Eur Respir J 2016; 47:638-50. [PMID: 26797027 DOI: 10.1183/13993003.00647-2015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 11/12/2015] [Indexed: 12/12/2022]
Abstract
This review is devoted to the distinct associations of inflammatory bowel diseases (IBD) and chronic liver disorders with chronic airway diseases, namely chronic obstructive pulmonary disease and bronchial asthma, and other chronic respiratory disorders in the adult population. While there is strong evidence for the association of chronic airway diseases with IBD, the data are much weaker for the interplay between lung and liver multimorbidities. The association of IBD, encompassing Crohn's disease and ulcerative colitis, with pulmonary disorders is underlined by their heterogeneous respiratory manifestations and impact on chronic airway diseases. The potential relationship between the two most prevalent liver-induced pulmonary vascular entities, i.e. portopulmonary hypertension and hepatopulmonary syndrome, and also between liver disease and other chronic respiratory diseases is also approached. Abnormal lung function tests in liver diseases are described and the role of increased serum bilirubin levels on chronic respiratory problems are considered.
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Affiliation(s)
- Roberto Rodriguez-Roisin
- Servei de Pneumologia (Institut del Tòrax), Hospital Clínic, Institut Biomédic August Pi i Sunyer (IDIBAPS), Ciber Enfermedades Respiratorias (CIBERES), Universitat de Barcelona, Barcelona, Spain
| | - Sonja D Bartolome
- Pulmonary and Critical Care Medicine, UT Southwestern Medical Center, Dallas, TX, USA
| | - Gérard Huchon
- Service de Pneumologie, Université Paris 5, Paris, France
| | - Michael J Krowka
- Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
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97
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Rolle-Kampczyk UE, Krumsiek J, Otto W, Röder SW, Kohajda T, Borte M, Theis F, Lehmann I, von Bergen M. Metabolomics reveals effects of maternal smoking on endogenous metabolites from lipid metabolism in cord blood of newborns. Metabolomics 2016; 12:76. [PMID: 27065762 PMCID: PMC4783445 DOI: 10.1007/s11306-016-0983-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 12/17/2015] [Indexed: 01/13/2023]
Abstract
INTRODUCTION A general detrimental effect of smoking during pregnancy on the health of newborn children is well-documented, but the detailed mechanisms remain elusive. OBJECTIVES Beside the specific influence of environmental tobacco smoke derived toxicants on developmental regulation the impact on the metabolism of newborn children is of particular interest, first as a general marker of foetal development and second due to its potential predictive value for the later occurrence of metabolic diseases. METHODS Tobacco smoke exposure information from a questionnaire was confirmed by measuring the smoking related metabolites S-Phenyl mercapturic acid, S-Benzyl mercapturic acid and cotinine in maternal urine by LC-MS/MS. The impact of smoking on maternal endogenous serum metabolome and children's cord blood metabolome was assessed in a targeted analysis of 163 metabolites by an LC-MS/MS based assay. The anti-oxidative status of maternal serum samples was analysed by chemoluminiscence based method. RESULTS Here we present for the first time results of a metabolomic assessment of the cordblood of 40 children and their mothers. Several analytes from the group of phosphatidylcholines, namely PCaaC28:1, PCaaC32:3, PCaeC30:1, PCaeC32:2, PCaeC40:1, and sphingomyelin SM C26:0, differed significantly in mothers and children's sera depending on smoking status. In serum of smoking mothers the antioxidative capacity of water soluble compounds was not significantly changed while there was a significant decrease in the lipid fraction. CONCLUSION Our data give evidence that smoking during pregnancy alters both the maternal and children's metabolome. Whether the different pattern found in adults compared to newborn children could be related to different disease outcomes should be in the focus of future studies.
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Affiliation(s)
- Ulrike E. Rolle-Kampczyk
- Department of Metabolomics, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
| | - Jan Krumsiek
- Institute of Computational Biology, Helmholtz Centre Munich & Mathematics, Oberschleißheim, Germany
| | - Wolfgang Otto
- Department of Proteomics, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
| | - Stefan W. Röder
- Core Facility Studies, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
| | - Tibor Kohajda
- Department of Metabolomics, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
| | - Michael Borte
- Hospital “St. Georg” GmbH Leipzig, Academic Teaching Hospital of the University of Leipzig, Delitzscher Straße 141, 04129 Leipzig, Germany
| | - Fabian Theis
- Institute of Computational Biology, Helmholtz Centre Munich & Mathematics, Oberschleißheim, Germany
- TU Munich, Munich, Germany
| | - Irina Lehmann
- Core Facility Studies, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
| | - M. von Bergen
- Department of Metabolomics, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
- Department of Proteomics, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research – UFZ Leipzig, Leipzig, Germany
- Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Universität Leipzig, Leipzig, Germany
- Department of Chemistry and Bioscience, Center for Microbial Communities, Aalborg University, Aalborg, Denmark
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98
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Nobakht M Gh BF, Oskouie AA, Aliannejad R, Rezaei-Tavirani M, Tavallaie S, Baghban AA, Taheri S, Keramati MR, Alamdari DH. Pro-oxidant-antioxidant balance in Iranian veterans with sulfur mustard toxicity and different levels of pulmonary disorders. Drug Chem Toxicol 2015; 39:362-6. [PMID: 26679093 DOI: 10.3109/01480545.2015.1122033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Sulfur mustard (SM) is a strong alkylating agent that primarily targets the skin, eye and lung. The current study evaluated the pro-oxidant-antioxidant balance (PAB) assay in human serum of SM-exposed patients. DESIGN AND METHODS sera of 35 SM-exposed patients and 19 healthy volunteers were recruited. Both groups had nonsmoker and nonalcoholic people with no diseases such as diabetes, heart disease and other pulmonary diseases (COPD because of smoking, asthma and so on). All patients had documented exposure to SM. The PAB was measured. RESULTS SM-exposed patients with normal values for pulmonary function test and severe obstructive pulmonary disease demonstrated a significant increase in PAB value in compared with healthy volunteers (the PAB values in healthy volunteers, normal and severe patients were 48.74 ± 21.07 HK, 101.45 ± 32.68 HK and 120.23 ± 31.55 HK, respectively). However, the level of oxidation is not related to the severity of disease defined by spirometry findings. A significant negative correlation was established between the PAB value and FEV1. CONCLUSIONS The increased PAB value in chemical casualties showed that these patients are exposed to oxidative stress.
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Affiliation(s)
- B Fatemeh Nobakht M Gh
- a Proteomics Research Center, Shahid Beheshti University of Medical Sciences , Tehran , Iran .,b Department of Basic Sciences, Faculty of Paramedical Sciences , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Afsaneh Arefi Oskouie
- b Department of Basic Sciences, Faculty of Paramedical Sciences , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Rasoul Aliannejad
- c Pulmonary Department , Shariati Hospital, Tehran University of Medical Sciences , Tehran , Iran
| | - Mostafa Rezaei-Tavirani
- a Proteomics Research Center, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Shima Tavallaie
- d Department of Biochemistry, Faculty of Medicine , Mashhad University of Medical Sciences , Mashhad , Iran
| | - Alireza Akbarzadeh Baghban
- e Department of Basic Sciences , School of Rehabilitation, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Salman Taheri
- f Chemistry and Chemical Engineering Research Center of Iran , Tehran , Iran
| | - Mohammad Reza Keramati
- g Faculty of Medicine , Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences , Mashhad , Iran , and
| | - Daryoush Hamidi Alamdari
- h Biochemistry and Nutrition Research Center, Department of Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences , Mashhad , Iran
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Radu Balas M, Din Popescu IM, Hermenean A, Cinteză OL, Burlacu R, Ardelean A, Dinischiotu A. Exposure to Iron Oxide Nanoparticles Coated with Phospholipid-Based Polymeric Micelles Induces Biochemical and Histopathological Pulmonary Changes in Mice. Int J Mol Sci 2015; 16:29417-35. [PMID: 26690409 PMCID: PMC4691116 DOI: 10.3390/ijms161226173] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/11/2015] [Accepted: 11/19/2015] [Indexed: 01/16/2023] Open
Abstract
The biochemical and histopathological changes induced by the exposure to iron oxide nanoparticles coated with phospholipid-based polymeric micelles (IONPs-PM) in CD-1 mice lungs were analyzed. After 2, 3, 7 and 14 days following the intravenous injection of IONPs-PM (5 and 15 mg Fe/kg bw), lactate dehydrogenase (LDH) activity, oxidative stress parameters and the expression of Bax, Bcl-2, caspase-3 and TNF-α were evaluated in lung tissue. An increase of catalase (CAT) and glutathione reductase (GR) activities on the second day followed by a decrease on the seventh day, as well as a decline of lactate dehydrogenase (LDH), superoxide dismutase (SOD) and glutathione peroxidase (GPx) activity on the third and seventh day were observed in treated groups vs. controls. However, all these enzymatic activities almost fully recovered on the 14th day. The reduced glutathione (GSH) and protein thiols levels decreased significantly in nanoparticles-treated groups and remained diminished during the entire experimental period; by contrast malondialdehyde (MDA) and protein carbonyls increased between the 3rd and 14th day of treatment vs. control. Relevant histopathological modifications were highlighted using Hematoxylin and Eosin (H&E) staining. In addition, major changes in the expression of apoptosis markers were observed in the first week, more pronounced for the higher dose. The injected IONPs-PM generated a dose-dependent decrease of the mouse lung capacity, which counteracted oxidative stress, thus creating circumstances for morphopathological lesions and oxidation processes.
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Affiliation(s)
- Mihaela Radu Balas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, Bucharest 050095, Romania.
- Department of Experimental and Applied Biology, Institute of Life Sciences, Vasile Goldis Western University of Arad, 86 Rebreanu, Arad 310414, Romania.
| | - Ioana Mihaela Din Popescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, Bucharest 050095, Romania.
| | - Anca Hermenean
- Department of Experimental and Applied Biology, Institute of Life Sciences, Vasile Goldis Western University of Arad, 86 Rebreanu, Arad 310414, Romania.
- Department of Histology, Faculty of Medicine, Vasile Goldis Western University of Arad, 1 Feleacului, Arad 310396, Romania.
| | - Otilia Ludmila Cinteză
- Department of Physical Chemistry, Faculty of Chemistry, University of Bucharest, 4-12 Regina Elisabeta Blvd, Bucharest 030018, Romania.
| | - Radu Burlacu
- Department of Mathematics, University of Agriculture Sciences and Veterinary Medicine, 59 Marasti, Bucharest 011464, Romania.
| | - Aurel Ardelean
- Department of Experimental and Applied Biology, Institute of Life Sciences, Vasile Goldis Western University of Arad, 86 Rebreanu, Arad 310414, Romania.
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, Bucharest 050095, Romania.
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100
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Gürbüz Ş, Yıldız M, Kara M, Kargün K, Gürger M, Ateşçelik M, Alataş ÖD. Paraoxonase-1 gene in patients with chronic obstructive pulmonary disease investigation Q192R and L55M polymorphisms. World J Emerg Med 2015; 6:201-6. [PMID: 26401181 DOI: 10.5847/wjem.j.1920-8642.2015.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 07/11/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The effect of increased oxidative stress on the development of chronic obstructive pulmonary disease (COPD) is well known. One of the antioxidative systems against oxidative stress in human body is paraoxonase (PON) enzyme that protects low density lipoproteins (LDL) against oxidation. This study aimed to explore the polymorphisms on PON1, Q192R, L55M genes of patients with COPD. METHODS DNAs extraction was obtained from blood samples of 50 patients diagnosed with COPD and 50 patients as a control group who were presented to emergency clinic. Genotypes were obtained with polymerase chain reaction (PCR) and AIw I and Hsp92II restriction enzymes were used for Q192R and L55M polymorphisms, respectively. Analysis of data was done with the Chi-square test and Fisher's exact test. RESULTS A statistically significant difference in Q192R polymorphism was found between the COPD patients and the control group (P=0.05). There was no statistically significant difference in L55M polymorphisms between the patient and control groups (P>0.05). Q192R polymorphism was significantly correlated with the PON1 gene and cigarette smoking; however other risk factors did not show any significant correlation with this polymorphism. Though L55M polymorphism was significantly correlated with family history and tuberculosis, there was no significant correlation with other risk factors. CONCLUSION We believe that more studies are needed to study the correlation of L55M polymorphism with other factors.
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Affiliation(s)
- Şükrü Gürbüz
- Department of Emergency Medicine, İnönü University, Malatya, Turkey
| | - Mustafa Yıldız
- Department of Emergency Medicine, Fırat University, Elazığ, Turkey
| | - Murat Kara
- Department of Medical Genetics, Sıtkı Koçman University, Muğla, Turkey
| | - Kürşat Kargün
- Department of Medical Genetics, Fırat University, Elazığ, Turkey
| | - Mehtap Gürger
- Department of Emergency Medicine, Fırat University, Elazığ, Turkey
| | - Metin Ateşçelik
- Department of Emergency Medicine, Fırat University, Elazığ, Turkey
| | - Ömer Doğan Alataş
- Department of Emergency Medicine, Sıtkı Koçman University, Muğla, Turkey
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