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Sun Y, Ren Y, Song LY, Wang YY, Li TG, Wu YL, Li L, Yang ZS. Targeting iron-metabolism:a potential therapeutic strategy for pulmonary fibrosis. Biomed Pharmacother 2024; 172:116270. [PMID: 38364737 DOI: 10.1016/j.biopha.2024.116270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/23/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024] Open
Abstract
Iron homeostasisis is integral to normal physiological and biochemical processes of lungs. The maintenance of iron homeostasis involves the process of intake, storage and output, dependening on iron-regulated protein/iron response element system to operate tightly metabolism-related genes, including TFR1, DMT1, Fth, and FPN. Dysregulation of iron can lead to iron overload, which increases the virulence of microbial colonisers and the occurrence of oxidative stress, causing alveolar epithelial cells to undergo necrosis and apoptosis, and form extracellular matrix. Accumulated iron drive iron-dependent ferroptosis to exacerbated pulmonary fibrosis. Notably, the iron chelator deferoxamine and the lipophilic antioxidant ferritin-1 have been shown to attenuate ferroptosis and inhibit lipid peroxidation in pulmonary fibrosis. The paper summarises the regulatory mechanisms of dysregulated iron metabolism and ferroptosis in the development of pulmonary fibrosis. Targeting iron metabolism may be a potential therapeutic strategy for the prevention and treatment of pulmonary fibrosis.
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Affiliation(s)
- Yi Sun
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Yu Ren
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Li-Yun Song
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Yin-Ying Wang
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, 1076 Yuhua Road Kunming, Yunnan 650500, China
| | - Tian-Gang Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Ying-Li Wu
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China
| | - Li Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China.
| | - Zhong-Shan Yang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, School of Basic Medical Sciences, Yunnan University of Chinese Medicine, 1076 Yuhua Road, Kunming, 650500, Yunnan, China.
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Jing Z, Li Y, Zhang H, Chen T, Yu J, Xu X, Zou Y, Wang X, Xiang K, Gong X, He P, Fu Y, Ren M, Ji P, Yang S. Tobacco toxins induce osteoporosis through ferroptosis. Redox Biol 2023; 67:102922. [PMID: 37826866 PMCID: PMC10571034 DOI: 10.1016/j.redox.2023.102922] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023] Open
Abstract
Clinical epidemiological studies have confirmed that tobacco smoking disrupts bone homeostasis and is an independent risk factor for the development of osteoporosis. The low viability and inferior osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) are important etiologies of osteoporosis. However, few basic studies have elucidated the specific mechanisms that tobacco toxins devastated BMSCs and consequently induced or exacerbated osteoporosis. Herein, our clinical data showed the bone mineral density (BMD) values of femoral neck in smokers were significantly lower than non-smokers, meanwhile cigarette smoke extract (CSE) exposure led to a significant decrease of BMD in rats and dysfunction of rat BMSCs (rBMSCs). Transcriptomic analysis and phenotype experiments suggested that the ferroptosis pathway was significantly activated in CSE-treated rBMSCs. Accumulated intracellular reactive oxygen species activated AMPK signaling, furtherly promoted NCOA4-mediated ferritin-selective autophagic processes, increased labial iron pool and lipid peroxidation deposition, and ultimately led to ferroptosis in rBMSCs. Importantly, in vivo utilization of ferroptosis and ferritinophagy inhibitors significantly alleviated BMD loss in CSE-exposed rats. Our study innovatively reveals the key mechanism of smoking-related osteoporosis, and provides a possible route targeting on the perspective of BMSC ferroptosis for future prevention and treatment of smoking-related bone homeostasis imbalance.
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Affiliation(s)
- Zheng Jing
- Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yuzhou Li
- Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - He Zhang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Jinrui Yu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Xinxin Xu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Yulong Zou
- Department of Orthopedics, Second Affiliated Hospital of Chongqing Medical University, China
| | - Xu Wang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Kai Xiang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Xuerui Gong
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Ping He
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Yiru Fu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Mingxing Ren
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Ping Ji
- Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Sheng Yang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
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Liu L, Zhang Y, Wang L, Liu Y, Chen H, Hu Q, Xie C, Meng X, Shen X. Scutellarein alleviates chronic obstructive pulmonary disease through inhibition of ferroptosis by chelating iron and interacting with arachidonate 15-lipoxygenase. Phytother Res 2023; 37:4587-4606. [PMID: 37353982 DOI: 10.1002/ptr.7928] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/16/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023]
Abstract
Ferroptosis, an iron-dependent cell death characterized by lethal lipid peroxidation, is involved in chronic obstructive pulmonary disease (COPD) pathogenesis. Therefore, ferroptosis inhibition represents an attractive strategy for COPD therapy. Herein, we identified natural flavonoid scutellarein as a potent ferroptosis inhibitor for the first time, and characterized its underlying mechanisms for inhibition of ferroptosis and COPD. In vitro, the anti-ferroptotic activity of scutellarein was investigated through CCK8, real-time quantitative polymerase chain reaction (RT-qPCR), Western blotting, flow cytometry, and transmission electron microscope (TEM). In vivo, COPD was induced by lipopolysaccharide (LPS)/cigarette smoke (CS) and assessed by changes in histopathological, inflammatory, and ferroptotic markers. The mechanisms were investigated by RNA-sequencing (RNA-seq), electrospray ionization mass spectra (ESI-MS), local surface plasmon resonance (LSPR), drug affinity responsive target stability (DARTS), cellular thermal shift assay (CETSA), and molecular dynamics. Our results showed that scutellarein significantly inhibited Ras-selective lethal small molecule (RSL)-3-induced ferroptosis and mitochondria injury in BEAS-2B cells, and ameliorated LPS/CS-induced COPD in mice. Furthermore, scutellarein also repressed RSL-3- or LPS/CS-induced lipid peroxidation, GPX4 down-regulation, and overactivation of Nrf2/HO-1 and JNK/p38 pathways. Mechanistically, scutellarein inhibited RSL-3- or LPS/CS-induced Fe2+ elevation through directly chelating Fe2+ . Moreover, scutellarein bound to the lipid peroxidizing enzyme arachidonate 15-lipoxygenase (ALOX15), which resulted in an unstable state of the catalysis-related Fe2+ chelating cluster. Additionally, ALOX15 overexpression partially abolished scutellarein-mediated anti-ferroptotic activity. Our findings revealed that scutellarein alleviated COPD by inhibiting ferroptosis via directly chelating Fe2+ and interacting with ALOX15, and also highlighted scutellarein as a candidate for the treatment of COPD and other ferroptosis-related diseases.
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Affiliation(s)
- Lu Liu
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunsen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences (ICMS), University of Macau, Macau, China
| | - Lun Wang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Yue Liu
- College of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongqing Chen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiongying Hu
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chunguang Xie
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xianli Meng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofei Shen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Kontoghiorghes GJ. Iron Load Toxicity in Medicine: From Molecular and Cellular Aspects to Clinical Implications. Int J Mol Sci 2023; 24:12928. [PMID: 37629109 PMCID: PMC10454416 DOI: 10.3390/ijms241612928] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Iron is essential for all organisms and cells. Diseases of iron imbalance affect billions of patients, including those with iron overload and other forms of iron toxicity. Excess iron load is an adverse prognostic factor for all diseases and can cause serious organ damage and fatalities following chronic red blood cell transfusions in patients of many conditions, including hemoglobinopathies, myelodyspasia, and hematopoietic stem cell transplantation. Similar toxicity of excess body iron load but at a slower rate of disease progression is found in idiopathic haemochromatosis patients. Excess iron deposition in different regions of the brain with suspected toxicity has been identified by MRI T2* and similar methods in many neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease. Based on its role as the major biological catalyst of free radical reactions and the Fenton reaction, iron has also been implicated in all diseases associated with free radical pathology and tissue damage. Furthermore, the recent discovery of ferroptosis, which is a cell death program based on free radical generation by iron and cell membrane lipid oxidation, sparked thousands of investigations and the association of iron with cardiac, kidney, liver, and many other diseases, including cancer and infections. The toxicity implications of iron in a labile, non-protein bound form and its complexes with dietary molecules such as vitamin C and drugs such as doxorubicin and other xenobiotic molecules in relation to carcinogenesis and other forms of toxicity are also discussed. In each case and form of iron toxicity, the mechanistic insights, diagnostic criteria, and molecular interactions are essential for the design of new and effective therapeutic interventions and of future targeted therapeutic strategies. In particular, this approach has been successful for the treatment of most iron loading conditions and especially for the transition of thalassemia from a fatal to a chronic disease due to new therapeutic protocols resulting in the complete elimination of iron overload and of iron toxicity.
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Affiliation(s)
- George J Kontoghiorghes
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, 3, Ammochostou Street, Limassol 3021, Cyprus
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Avramescu ML, Potiszil C, Kunihiro T, Okabe K, Nakamura E. An investigation of the internal morphology of asbestos ferruginous bodies: constraining their role in the onset of malignant mesothelioma. Part Fibre Toxicol 2023; 20:19. [PMID: 37150820 PMCID: PMC10165766 DOI: 10.1186/s12989-023-00522-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND Asbestos is a fibrous mineral that was widely used in the past. However, asbestos inhalation is associated with an aggressive type of cancer known as malignant mesothelioma (MM). After inhalation, an iron-rich coat forms around the asbestos fibres, together the coat and fibre are termed an "asbestos ferruginous body" (AFB). AFBs are the main features associated with asbestos-induced MM. Whilst several studies have investigated the external morphology of AFBs, none have characterised the internal morphology. Here, cross-sections of multiple AFBs from two smokers and two non-smokers are compared to investigate the effects of smoking on the onset and growth of AFBs. Morphological and chemical observations of AFBs were undertaken by transmission electron microscopy, energy dispersive x-ray spectroscopy and selected area diffraction. RESULTS The AFBs of all patients were composed of concentric layers of 2-line or 6-line ferrihydrite, with small spherical features being observed on the outside of the AFBs and within the cross-sections. The spherical components are of a similar size to Fe-rich inclusions found within macrophages from mice injected with asbestos fibres in a previous study. As such, the spherical components composing the AFBs may result from the deposition of Fe-rich inclusions during frustrated phagocytosis. The AFBs were also variable in terms of their Fe, P and Ca abundances, with some layers recording higher Fe concentrations (dense layers), whilst others lower Fe concentrations (porous layers). Furthermore, smokers were found to have smaller and overall denser AFBs than non-smokers. CONCLUSIONS The AFBs of smokers and non-smokers show differences in their morphology, indicating they grew in lung environments that experienced disparate conditions. Both the asbestos fibres of smokers and non-smokers were likely subjected to frustrated phagocytosis and accreted mucopolysaccharides, resulting in Fe accumulation and AFB formation. However, smokers' AFBs experienced a more uniform Fe-supply within the lung environment compared to non-smokers, likely due to Fe complexation from cigarette smoke, yielding denser, smaller and more Fe-rich AFBs. Moreover, the lack of any non-ferrihydrite Fe phases in the AFBs may indicate that the ferritin shell was intact, and that ROS may not be the main driver for the onset of MM.
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Affiliation(s)
- Maya-Liliana Avramescu
- The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry, Institute for Planetary Materials, Okayama University, Misasa, Tottori, 682-0193, Japan
| | - Christian Potiszil
- The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry, Institute for Planetary Materials, Okayama University, Misasa, Tottori, 682-0193, Japan
| | - Tak Kunihiro
- The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry, Institute for Planetary Materials, Okayama University, Misasa, Tottori, 682-0193, Japan
| | - Kazunori Okabe
- Bell Land General Hospital, 500-3 Higashiyama, Sakai, Osaka, 599-8247, Japan
| | - Eizo Nakamura
- The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry, Institute for Planetary Materials, Okayama University, Misasa, Tottori, 682-0193, Japan.
- Advanced Science Research Center, Okayama University, Tsushima, Okayama, 700-8530, Japan.
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Maternal factors associated with iron deficiency without anaemia in early pregnancy: ECLIPSES study. Ann Hematol 2023; 102:741-748. [PMID: 36790457 PMCID: PMC9998312 DOI: 10.1007/s00277-023-05123-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 02/01/2023] [Indexed: 02/16/2023]
Abstract
Several population-specific genetic, sociodemographic, and maternal lifestyle factors are related to iron status in early pregnancy, and their identification would allow preventive actions to be taken. The study aimed to identify maternal factors associated with iron deficiency (ID) in early pregnancy in non-anaemic pregnant women from a European Mediterranean country. Cross-sectional study using the initial population of the ECLIPSES study performed in non-anaemic pregnant women before gestational week 12. Serum ferritin (SF) and haemoglobin concentrations were measured to evaluate iron status, and ID was defined as SF < 15 µg/L. Several sociodemographic and lifestyle data were recorded and used as covariates in the multivariate-adjusted regression models. Out of the 791 participants, 13.9% had ID in early pregnancy. Underweight (OR 3.70, 95%CI 1.22, 15.53) and parity (1 child: OR 2.03, 95%CI 1.06, 3.88; ≥ 2 children: OR 6.96, 95%CI 3.09, 15.69) increased the odds of ID, while a high intake of total meat (≥ 108.57 g/day: OR 0.37, 95%CI 0.15, 0.87), red/processed meat (≥ 74.29 g/day: OR 0.70, 95%CI 0.35, 0.98), protein (≥ 65.05 g/day: OR 0.85, 95%CI 0.30, 0.99), and dietary iron (≥ 8.58 mg/day: OR 0.58, 95%CI 0.35, 0.94) protected against it. Smoking was also associated with a reduction in ID odds (OR 0.34, 95%CI 0.12, 0.99). Baseline BMI, parity, smoking, and diet are associated with ID in early pregnancy in non-anaemic women. Pregnancy planning policies should focus on women at higher risk of ID, such as those who are underweight, multiparous, or following vegetarian diets. This clinical trial was registered at www.clinicaltrialsregister.eu as EudraCT number 2012-005,480-28 and at www.clinicaltrials.gov with identification number NCT03196882.
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Faherty L, Kenny S, Cloonan SM. Iron and mitochondria in the susceptibility, pathogenesis and progression of COPD. Clin Sci (Lond) 2023; 137:219-237. [PMID: 36729089 DOI: 10.1042/cs20210504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 02/03/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a debilitating lung disease characterised by airflow limitation, chronic bronchitis, emphysema and airway remodelling. Cigarette smoke is considered the primary risk factor for the development of COPD; however, genetic factors, host responses and infection also play an important role. Accumulating evidence highlights a role for iron dyshomeostasis and cellular iron accumulation in the lung as a key contributing factor in the development and pathogenesis of COPD. Recent studies have also shown that mitochondria, the central players in cellular iron utilisation, are dysfunctional in respiratory cells in individuals with COPD, with alterations in mitochondrial bioenergetics and dynamics driving disease progression. Understanding the molecular mechanisms underlying the dysfunction of mitochondria and cellular iron metabolism in the lung may unveil potential novel investigational avenues and therapeutic targets to aid in the treatment of COPD.
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Affiliation(s)
- Lynne Faherty
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - Sarah Kenny
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - Suzanne M Cloonan
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, NY, U.S.A
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Concentrations of Transition Metal Ions in Rat Lungs after Tobacco Smoke Exposure and Treatment with His-Leu Dipeptide. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020628. [PMID: 36677686 PMCID: PMC9862342 DOI: 10.3390/molecules28020628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
Tobacco smoking is deleterious to the lungs because it exposes them to many toxic substances. These include transition metal ions, such as cadmium. However, there is a lack of information about the influence of endogenous metal-binding peptides, such as His-Leu (HL), on the lung distribution of transition metals in smokers. To address this, we administered HL subcutaneously to rats exposed to tobacco smoke for six weeks, then we measured the concentrations of transition metal ions in the lungs. We found that exposure to tobacco smoke elevates the concentrations of Cd(II) and Cu(II). Administration of the HL peptide, whose elevation is a consequence of angiotensin receptor blocker anti-hypertension therapy, increases the concentration of Fe in the lungs of rats exposed to smoke. These findings suggest that smoking is a risk factor for patients receiving angiotensin receptor blockers to treat hypertension.
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Liu J, Chen Y, Lu X, Xu X, Bulloch G, Zhu S, Zhu Z, Ge Z, Wang W, Shang X, He M. The Association between Dietary Iron Intake and Incidence of Dementia in Adults Aged 60 Years or over in the UK Biobank. Nutrients 2023; 15:nu15020260. [PMID: 36678132 PMCID: PMC9865143 DOI: 10.3390/nu15020260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 01/06/2023] Open
Abstract
Background Several studies have investigated the association between dietary iron intake and cognitive impairment, but little is known about the relationship between iron intake and dementia incidence. Objectives This study explored the association between dietary iron intake and incident dementia in males and females. Whether this association was modified by factors such as age and medical diseases was also examined. Methods We included 41,213 males and 48,892 females aged 60 years or over, from the UK-Biobank cohort. Dietary iron intake was measured using a web-based 24-h dietary recall questionnaire from between 2009 and 2012. Incident dementia was ascertained using hospital inpatient records and death registers until April 2021. Cox proportional regression models examined the association between iron intake and incident dementia, and hazard ratio curves were constructed with knots from the analysis indicating insufficient or excessive iron intake. Results During a mean follow-up of 11.8 years, 560 males and 492 females developed dementia. A non-linear relationship between iron intake and incident dementia was observed in both males and females. The lowest incidence rates were observed in the higher iron intake quintile (Q4: ≥15.73, <17.57 mg/day) for males, and the intermediate iron intake quintile (Q3: ≥12.4, <13.71 mg/day) for females. Among those aged 60 and above, all-cause dementia in males was associated with deficient iron intake (Q1 versus Q4: Hazard ratio [HR]: 1.37, 95% Confidence interval [95%CI]: 1.01−1.86, p = 0.042) and excessive iron intake (Q5 versus Q4: HR: 1.49, 95%CI: 1.14−1.96, p = 0.003), whilst significant associations between all-cause dementia and deficient iron intake were only observed in females without hypertension. Smoking status was a significant moderator (p-value for trend = 0.017) for dementia in males only. Conclusions Excessive iron intake (≥17.57 mg/day) is associated with a higher incidence of all-cause dementia in males and smoking status modified this association amongst males. Deficient iron intake (<10.93 mg/day) was associated with a higher incidence of all-cause dementia in females without a history of hypertension.
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Affiliation(s)
- Jiahao Liu
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC 3010, Australia
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, VIC 3002, Australia
| | - Yutong Chen
- Faculty of Medicine, Nursing and Health Science, Monash University, Clayton, VIC 3800, Australia
| | - Xi Lu
- Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Xiaojing Xu
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Gabriella Bulloch
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, VIC 3002, Australia
| | - Susan Zhu
- Austin Hospital, University of Melbourne, Melbourne, VIC 3084, Australia
| | - Zhuoting Zhu
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, VIC 3002, Australia
| | - Zongyuan Ge
- Monash e-Research Center, Faculty of Engineering, Airdoc Research, Nvidia AI Technology Research Center, Monash University, Melbourne, VIC 3800, Australia
| | - Wei Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Xianwen Shang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, VIC 3002, Australia
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Mingguang He
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, VIC 3002, Australia
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Correspondence:
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10
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Ding K, Jiang W, Zhan W, Xiong C, Chen J, Wang Y, Jia H, Lei M. The therapeutic potential of quercetin for cigarette smoking-induced chronic obstructive pulmonary disease: a narrative review. Ther Adv Respir Dis 2023; 17:17534666231170800. [PMID: 37154390 PMCID: PMC10170608 DOI: 10.1177/17534666231170800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Quercetin is a flavonoid with antioxidant and anti-inflammatory properties. Quercetin has potentially beneficial therapeutic effects for several diseases, including cigarette smoking-induced chronic obstructive pulmonary disease (CS-COPD). Many studies have shown that quercetin's antioxidant and anti-inflammatory properties have positive therapeutic potential for CS-COPD. In addition, quercetin's immunomodulatory, anti-cellular senescence, mitochondrial autophagy-modulating, and gut microbiota-modulating effects may also have therapeutic value for CS-COPD. However, there appears to be no review of the possible mechanisms of quercetin for treating CS-COPD. Moreover, the combination of quercetin with common therapeutic drugs for CS-COPD needs further refinement. Therefore, in this article, after introducing the definition and metabolism of quercetin, and its safety, we comprehensively presented the pathogenesis of CS-COPD related to oxidative stress, inflammation, immunity, cellular senescence, mitochondrial autophagy, and gut microbiota. We then reviewed quercetin's anti-CS-COPD effects, performed by influencing these mechanisms. Finally, we explored the possibility of using quercetin with commonly used drugs for treating CS-COPD, providing a basis for future screening of excellent drug combinations for treating CS-COPD. This review has provided meaningful information on quercetin's mechanisms and clinical use in treating CS-COPD.
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Affiliation(s)
- Kaixi Ding
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenling Zhan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chunping Xiong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jieling Chen
- Shehong Hospital of Traditional Chinese Medicine, Shehong, China
| | - Yu Wang
- Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Huanan Jia
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Ming Lei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
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11
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Frosztega W, Wieckiewicz M, Nowacki D, Michalek-Zrabkowska M, Poreba R, Wojakowska A, Kanclerska J, Mazur G, Martynowicz H. Polysomnographic Assessment of Effects of Tobacco Smoking and Alcohol Consumption on Sleep Bruxism Intensity. J Clin Med 2022; 11:7453. [PMID: 36556069 PMCID: PMC9785944 DOI: 10.3390/jcm11247453] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Background: Sleep bruxism (SB) is a common sleep-related movement behavior with a complex etiology. A recent hypothesis suggests psychoactive substance usage, tobacco smoking, and alcohol intake are risk factors for SB. This study aimed to evaluate SB intensity in tobacco smokers and alcohol drinkers. Methods: A total of 133 adults underwent full-night audio- and video-polysomnography, and the polysomnograms were evaluated using the American Academy of Sleep Medicine guidelines. The study group was divided into smoker and nonsmoker groups as well as drinker and non-drinker groups. Results: The results of the polysomnographic analysis confirmed that tobacco smoking has a significant effects on SB. Tobacco smokers showed increased bruxism intensity (5.50 ± 4.71 vs. 3.83 ± 3.26, p < 0.05), especially the mixed phenotype (0.93 ± 1.00 vs. 0.59 ± 0.59, p < 0.05), in the N1 sleep stage (22.84 ± 20.45 vs. 15.66 ± 13.60, p < 0.05) and the nonsupine position (4.93 ± 5.56 vs. 2.50 ± 2.31, p < 0.05). They also showed a higher number of bruxism episodes with arousal compared with nonsmokers (2.91 ± 2.83 vs. 1.61 ± 1.49, p < 0.05), indicating increased sleep fragmentation. However, no significant effect of alcohol on SB intensity was observed, and the bruxism episode index was similar in alcohol drinkers and nondrinkers. In addition, electrolyte disturbances and lipid disorders were evaluated. Compared with nonsmokers, tobacco smokers showed a higher concentration of plasma triglycerides (177.67 ± 106.9 vs. 129.18 ± 65.61) and lower levels of iron and magnesium (96.68 ± 43.58 vs. 123.83 ± 52.36 and 1.85 ± 0.22 vs. 1.96 ± 0.21, respectively). Conclusions: In summary, this study showed that tobacco smoking, but not alcohol consumption, is related to bruxism intensity and lipid and electrolyte disturbances in individuals with sleep disorders.
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Affiliation(s)
- Weronika Frosztega
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Mieszko Wieckiewicz
- Department of Experimental Dentistry, Wroclaw Medical University, 26 Krakowska St., 50-425 Wroclaw, Poland
| | - Dorian Nowacki
- Department of Human Nutrition, Wroclaw University of Environmental and Life Sciences, 37 Chelmonskiego St., 51-630 Wroclaw, Poland
| | - Monika Michalek-Zrabkowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Rafal Poreba
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Anna Wojakowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Justyna Kanclerska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Grzegorz Mazur
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
| | - Helena Martynowicz
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, 213 Borowska St., 50-556 Wroclaw, Poland
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12
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Dailah HG. Therapeutic Potential of Small Molecules Targeting Oxidative Stress in the Treatment of Chronic Obstructive Pulmonary Disease (COPD): A Comprehensive Review. Molecules 2022; 27:molecules27175542. [PMID: 36080309 PMCID: PMC9458015 DOI: 10.3390/molecules27175542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/21/2022] [Accepted: 08/25/2022] [Indexed: 12/02/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an increasing and major global health problem. COPD is also the third leading cause of death worldwide. Oxidative stress (OS) takes place when various reactive species and free radicals swamp the availability of antioxidants. Reactive nitrogen species, reactive oxygen species (ROS), and their counterpart antioxidants are important for host defense and physiological signaling pathways, and the development and progression of inflammation. During the disturbance of their normal steady states, imbalances between antioxidants and oxidants might induce pathological mechanisms that can further result in many non-respiratory and respiratory diseases including COPD. ROS might be either endogenously produced in response to various infectious pathogens including fungi, viruses, or bacteria, or exogenously generated from several inhaled particulate or gaseous agents including some occupational dust, cigarette smoke (CS), and air pollutants. Therefore, targeting systemic and local OS with therapeutic agents such as small molecules that can increase endogenous antioxidants or regulate the redox/antioxidants system can be an effective approach in treating COPD. Various thiol-based antioxidants including fudosteine, erdosteine, carbocysteine, and N-acetyl-L-cysteine have the capacity to increase thiol content in the lungs. Many synthetic molecules including inhibitors/blockers of protein carbonylation and lipid peroxidation, catalytic antioxidants including superoxide dismutase mimetics, and spin trapping agents can effectively modulate CS-induced OS and its resulting cellular alterations. Several clinical and pre-clinical studies have demonstrated that these antioxidants have the capacity to decrease OS and affect the expressions of several pro-inflammatory genes and genes that are involved with redox and glutathione biosynthesis. In this article, we have summarized the role of OS in COPD pathogenesis. Furthermore, we have particularly focused on the therapeutic potential of numerous chemicals, particularly antioxidants in the treatment of COPD.
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Affiliation(s)
- Hamad Ghaleb Dailah
- Research and Scientific Studies Unit, College of Nursing, Jazan University, Jazan 45142, Saudi Arabia
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13
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Passive Smoking Is Associated with Multiple Heavy Metal Concentrations among Housewives in Shanxi Province, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148606. [PMID: 35886457 PMCID: PMC9315771 DOI: 10.3390/ijerph19148606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 02/05/2023]
Abstract
Background: Passive smoking may increase the content of heavy metals in housewives. However, this association remains a subject of debate. Female passive smoking is widespread, particularly in Chinese rural areas. Objective: This study aimed to assess the association between heavy metal accumulation and passive smoking status among rural housewives. Methods: 405 women were recruited in Shanxi Province of Northern China, and 384 (94.8%, 384/405) participants were included in the final study, of whom 117 women were exposed to passive smoking. The information on their basic characteristics was collected via a structured questionnaire. We used inductively coupled plasma mass spectrometry (ICP-MS) to analyze the concentrations of nine heavy metals, including cadmium (Cd), germanium (Ge), arsenic (As), lead (Pb), titanium (Ti), copper (Cu), iron (Fe), cobalt (Co), and chromium (Cr), in hair samples. Results: The results indicated that higher As, Ge, Ti, and Fe concentrations were significantly associated with passive smoking. After adjusting for potential confounders, the adjusted odds ratios and the 95% confidence intervals of As, Ge, Ti, and Fe were (1.80 (1.13–2.90),p = 0.028), (1.78 (1.14–2.80), p = 0.007), (1.70 (1.09–2.67), p = 0.019), and (1.67 (1.07–2.63), p = 0.035), respectively. The statistically significant linear trend of the adjusted odds ratios at different levels further supported their association. Conclusion: Our research concluded that exposure to environmental tobacco smoke might contribute to As, Ge, Ti, and Fe accumulation among housewives.
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Liu X, Ma Y, Luo L, Zong D, Li H, Zeng Z, Cui Y, Meng W, Chen Y. Dihydroquercetin suppresses cigarette smoke induced ferroptosis in the pathogenesis of chronic obstructive pulmonary disease by activating Nrf2-mediated pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 96:153894. [PMID: 34942457 DOI: 10.1016/j.phymed.2021.153894] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/01/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Dihydroquercetin (DHQ) is a flavonoid with strong anti-inflammatory and antioxidant effects. However, its protective activity against cigarette smoke-induced ferroptosis in the pathogenesis of chronic obstructive pulmonary disease and its underlying mechanisms remain unclear. PURPOSE The present study was conducted to investigate the protective role of DHQ in the pathogenesis of COPD in vivo and in vitro. METHODS A cigarette smoke-induced COPD mouse model was established by cigarette smoke (CS) exposure combined with intraperitoneal injection of cigarette smoke extract (CSE). During the modeling process, the mice were intraperitoneally injected with DHQ daily. HBE cells were cultured with CSE with or without pretreatment with DHQ (40, 80 μM) or ML385 (10 μM). Cell viability was assessed by a cell counting kit 8 (CCK-8). The contents of malondialdehyde (MDA) and superoxide dismutase (SOD) were determined by MDA and SOD assay kits, respectively, and reactive oxygen species (ROS) generation was detected by DCFH-DA assays. Protein expression levels of solute carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPx4) and nuclear factor erythroid 2-related factor 2 (Nrf2) were measured by western blot. Lipid peroxidation was determined by C11-BODIPY staining. Transmission electron microscopy was used to observe the morphological features of the mitochondria. RESULTS Treatment with DHQ significantly elevated ferroptosis-related protein (SLC7A11 and GPx4) expression in vivo and in vitro. The mRNA levels of SLC7A11 and GPx4 were also increased after DHQ treatment. The excessive MDA and ROS production and depleted SOD activity induced by CSE were reversed by DHQ. DHQ notably reduced the increased lipid peroxidation induced by CSE in HBE cells. In addition, treatment with DHQ attenuated the morphological changes in the mitochondria caused by CSE. Moreover, we also found that DHQ increased the levels of Nrf2 in a concentration-dependent manner in the cigarette smoke-induced COPD mouse model and CSE-treated HBE cells. Additionally, after administering an Nrf2-specific inhibitor, ML385, to HBE cells, the elevated SLC7A11 and GPx4 mRNA and protein levels induced by DHQ were reversed. Moreover, ML385 treatment attenuated the protective effect of DHQ on lipid peroxidation. CONCLUSION Our results show that treatment with DHQ significantly reverses the ferroptosis induced by cigarette smoke both in vivo and in vitro via a Nrf2-dependent signaling pathway.
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Affiliation(s)
- Xiangming Liu
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Yiming Ma
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Lijuan Luo
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Dandan Zong
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Herui Li
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Zihang Zeng
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Yanan Cui
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Weiwei Meng
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China
| | - Yan Chen
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Research Unit of Respiratory Disease, Central South University, Changsha, Hunan 410011, China.
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15
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Iglesias-Vázquez L, Arija V, Aranda N, Aglago EK, Cross AJ, Schulze MB, Quintana Pacheco D, Kühn T, Weiderpass E, Tumino R, Redondo-Sánchez D, de Magistris MS, Palli D, Ardanaz E, Laouali N, Sonestedt E, Drake I, Rizzolo L, Santiuste C, Sacerdote C, Quirós R, Amiano P, Agudo A, Jakszyn P. Factors associated with serum ferritin levels and iron excess: results from the EPIC-EurGast study. Eur J Nutr 2022; 61:101-114. [PMID: 34213605 DOI: 10.1007/s00394-021-02625-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/24/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Excess iron is involved in the development of non-communicable diseases such as cancer, type 2 diabetes and cardiovascular conditions. We aimed to describe the prevalence of excess iron and its determinants in healthy European adults. METHODS Sociodemographic, lifestyle, iron status, dietary information, and HFE genotyping were obtained from controls from the nested case-control study EPIC-EurGast study. High sensitivity C-reactive protein (hsCRP) was measured to address possible systemic inflammation. Descriptive and multivariate analyses were used to assess iron status and its determinants. RESULTS Out of the 828 participants (median age: 58.7 years), 43% were females. Median serum ferritin and prevalence of excess iron were 143.7 µg/L and 35.2% in males, respectively, and 77 µg/L and 20% in females, both increasing with latitude across Europe. Prevalence of HFE C282Y mutation was significantly higher in Northern and Central Europe (~ 11%) than in the South (5%). Overweight/obesity, age, and daily alcohol and heme iron intake were independent determinants for iron status, with sex differences even after excluding participants with hsCRP > 5 mg/L. Obese males showed a greater consumption of alcohol, total and red meat, and heme iron, compared with those normal weight. CONCLUSION Obesity, higher alcohol and heme iron consumption were the main risk factors for excess iron in males while only age was associated with iron overload in females. Weight control and promoting healthy lifestyle may help prevent iron overload, especially in obese people. Further research is needed to clarify determinants of excess iron in the healthy adult population, helping to reduce the associated comorbidities.
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Affiliation(s)
- Lucía Iglesias-Vázquez
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Victoria Arija
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain.
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain.
- Institut d'investigació en Atenció Primària (IDIAP) Jordi Gol, Institut Català de la Salut (ICS), Barcelona, Spain.
| | - Núria Aranda
- Research group of Nutrition and Mental Health (NUTRISAM), Unit of Nutrition and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili (URV), Tarragona, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
| | - Elom K Aglago
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Amanda J Cross
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | | | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority (ASP 7) Ragusa, Ragusa, Italy
| | - Daniel Redondo-Sánchez
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Villa delle Rose, Florence, Italy
| | - Eva Ardanaz
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Nasser Laouali
- Paris-Saclay University, UVSQ, University Paris-Sud, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP, 94805, Villejuif, France
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Isabel Drake
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Lucía Rizzolo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Carmen Santiuste
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città Della Salute e Della Scienza University-Hospital, Via Santena 7, 10126, Turin, Italy
| | - Ramón Quirós
- EPIC Asturias, Public Health Directorate, Asturias, Spain
| | - Pilar Amiano
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, Donostia-San Sebastian, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Paula Jakszyn
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute -(IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
- Blanquerna School of Health Sciences, Ramon Llull University, Barcelona, Spain.
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16
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Mohidem NA, Osman M, Muharam FM, Elias SM, Shaharudin R, Hashim Z. Prediction of tuberculosis cases based on sociodemographic and environmental factors in gombak, Selangor, Malaysia: A comparative assessment of multiple linear regression and artificial neural network models. Int J Mycobacteriol 2021; 10:442-456. [PMID: 34916466 DOI: 10.4103/ijmy.ijmy_182_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Early prediction of tuberculosis (TB) cases is very crucial for its prevention and control. This study aims to predict the number of TB cases in Gombak based on sociodemographic and environmental factors. Methods The sociodemographic data of 3325 TB cases from January 2013 to December 2017 in Gombak district were collected from the MyTB web and TB Information System database. Environmental data were obtained from the Department of Environment, Malaysia; Department of Irrigation and Drainage, Malaysia; and Malaysian Metrological Department from July 2012 to December 2017. Multiple linear regression (MLR) and artificial neural network (ANN) were used to develop the prediction model of TB cases. The models that used sociodemographic variables as the input datasets were referred as MLR1 and ANN1, whereas environmental variables were represented as MLR2 and ANN2 and both sociodemographic and environmental variables together were indicated as MLR3 and ANN3. Results The ANN was found to be superior to MLR with higher adjusted coefficient of determination (R2) values in predicting TB cases; the ranges were from 0.35 to 0.47 compared to 0.07 to 0.14, respectively. The best TB prediction model, that is, ANN3 was derived from nationality, residency, income status, CO, NO2, SO2, PM10, rainfall, temperature, and atmospheric pressure, with the highest adjusted R2 value of 0.47, errors below 6, and accuracies above 96%. Conclusions It is envisaged that the application of the ANN algorithm based on both sociodemographic and environmental factors may enable a more accurate modeling for predicting TB cases.
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Affiliation(s)
- Nur Adibah Mohidem
- Department of Environmental and Occupational Health, Universiti Putra Malaysia, Selangor, Malaysia
| | - Malina Osman
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Farrah Melissa Muharam
- Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Selangor, Malaysia
| | - Saliza Mohd Elias
- Department of Environmental and Occupational Health, Universiti Putra Malaysia, Selangor, Malaysia
| | - Rafiza Shaharudin
- Institute for Medical Research, National Institutes of Health, Selangor, Malaysia
| | - Zailina Hashim
- Department of Environmental and Occupational Health, Universiti Putra Malaysia, Selangor, Malaysia
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17
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Gomez HM, Pillar AL, Brown AC, Kim RY, Ali MK, Essilfie AT, Vanders RL, Frazer DM, Anderson GJ, Hansbro PM, Collison AM, Jensen ME, Murphy VE, Johnstone DM, Reid D, Milward EA, Donovan C, Horvat JC. Investigating the Links between Lower Iron Status in Pregnancy and Respiratory Disease in Offspring Using Murine Models. Nutrients 2021; 13:nu13124461. [PMID: 34960012 PMCID: PMC8708709 DOI: 10.3390/nu13124461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022] Open
Abstract
Maternal iron deficiency occurs in 40-50% of all pregnancies and is associated with an increased risk of respiratory disease and asthma in children. We used murine models to examine the effects of lower iron status during pregnancy on lung function, inflammation and structure, as well as its contribution to increased severity of asthma in the offspring. A low iron diet during pregnancy impairs lung function, increases airway inflammation, and alters lung structure in the absence and presence of experimental asthma. A low iron diet during pregnancy further increases these major disease features in offspring with experimental asthma. Importantly, a low iron diet increases neutrophilic inflammation, which is indicative of more severe disease, in asthma. Together, our data demonstrate that lower dietary iron and systemic deficiency during pregnancy can lead to physiological, immunological and anatomical changes in the lungs and airways of offspring that predispose to greater susceptibility to respiratory disease. These findings suggest that correcting iron deficiency in pregnancy using iron supplements may play an important role in preventing or reducing the severity of respiratory disease in offspring. They also highlight the utility of experimental models for understanding how iron status in pregnancy affects disease outcomes in offspring and provide a means for testing the efficacy of different iron supplements for preventing disease.
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Affiliation(s)
- Henry M. Gomez
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - Amber L. Pillar
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - Alexandra C. Brown
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - Richard Y. Kim
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
- Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Md Khadem Ali
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - Ama-Tawiah Essilfie
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (A.-T.E.); (D.M.F.); (G.J.A.); (D.R.)
| | - Rebecca L. Vanders
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - David M. Frazer
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (A.-T.E.); (D.M.F.); (G.J.A.); (D.R.)
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4067, Australia
| | - Gregory J. Anderson
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (A.-T.E.); (D.M.F.); (G.J.A.); (D.R.)
- School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, QLD 4067, Australia
| | - Philip M. Hansbro
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
- Centre for Inflammation, School of Life Sciences, Faculty of Science, Centenary Institute and University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Adam M. Collison
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, and Priority Research Centre for GrowUpWell, The University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (A.M.C.); (M.E.J.); (V.E.M.)
| | - Megan E. Jensen
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, and Priority Research Centre for GrowUpWell, The University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (A.M.C.); (M.E.J.); (V.E.M.)
| | - Vanessa E. Murphy
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, and Priority Research Centre for GrowUpWell, The University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (A.M.C.); (M.E.J.); (V.E.M.)
| | - Daniel M. Johnstone
- School of Medical Sciences, University of Sydney, Camperdown, NSW 2050, Australia;
| | - David Reid
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (A.-T.E.); (D.M.F.); (G.J.A.); (D.R.)
| | - Elizabeth A. Milward
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
| | - Chantal Donovan
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
- Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jay C. Horvat
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, and Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia; (H.M.G.); (A.L.P.); (A.C.B.); (R.Y.K.); (M.K.A.); (R.L.V.); (P.M.H.); (E.A.M.); (C.D.)
- Correspondence: ; Tel.: +612-4042-0220
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18
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Morales M, Xue X. Targeting iron metabolism in cancer therapy. Am J Cancer Res 2021; 11:8412-8429. [PMID: 34373750 PMCID: PMC8344014 DOI: 10.7150/thno.59092] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/10/2021] [Indexed: 02/06/2023] Open
Abstract
Iron is a critical component of many cellular functions including DNA replication and repair, and it is essential for cell vitality. As an essential element, iron is critical for maintaining human health. However, excess iron can be highly toxic, resulting in oxidative DNA damage. Many studies have observed significant associations between iron and cancer, and the association appears to be more than just coincidental. The chief characteristic of cancers, hyper-proliferation, makes them even more dependent on iron than normal cells. Cancer therapeutics are becoming as diverse as the disease itself. Targeting iron metabolism in cancer cells is an emerging, formidable field of therapeutics. It is a strategy that is highly diverse with regard to specific targets and the various ways to reach them. This review will discuss the importance of iron metabolism in cancer and highlight the ways in which it is being explored as the medicine of tomorrow.
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Iron status in mid-pregnancy and associations with interpregnancy interval, hormonal contraceptives, dietary factors and supplement use. Br J Nutr 2021; 126:1270-1280. [PMID: 33494856 DOI: 10.1017/s0007114521000295] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Adequate iron supply in pregnancy is important for both the woman and the fetus, but iron status is often assessed late in first trimester, if assessed at all. Therefore, identification of factors associated with iron status is important to target vulnerable groups with increased risk of deficiency. Our objectives were to (1) describe iron status in mid-pregnancy and (2) identify sociodemographic and lifestyle predictors of pregnancy iron status. This cross-sectional study uses data from The Norwegian Mother, Father and Child Cohort Study (collected 2002-2008) and The Medical Birth Registry of Norway. Iron status was measured as non-fasting plasma ferritin (P-Fe) and transferrin in gestational week (GW) 18 (n 2990), and by lowest reported Hb in GW 0-30 (n 39 322). We explored predictors of iron status with elastic net, linear and log-binomial regression models. Median P-Fe was 33 μg/l, and 14 % had depleted iron stores (P-Fe <15 μg/l). P-Fe below 30 μg/l was associated with reduced Hb. We identified eleven predictors, with interpregnancy interval (IPI) and parity among the most important. Depleted iron stores was more common among women with IPI < 6 months (56 %) and 6-11 months (33 %) than among those with IPI 24-59 months (19 %) and among nulliparous women (5 %). Positively associated factors with iron status included hormonal contraceptives, age, BMI, smoking, meat consumption and multi-supplement use. Our results highlight the importance of ferritin measurements in women of childbearing age, especially among women not using hormonal contraceptives and women with previous and recent childbirths.
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20
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Li H, Mu Q, Kang Y, Yang X, Shan L, Wang M, Li C, Liu Y, Wang F. Association of Cigarette Smoking With Male Cognitive Impairment and Metal Ions in Cerebrospinal Fluid. Front Psychiatry 2021; 12:738358. [PMID: 34887785 PMCID: PMC8650691 DOI: 10.3389/fpsyt.2021.738358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/28/2021] [Indexed: 11/14/2022] Open
Abstract
Objective: Cigarette smoking might accelerate cognitive impairment; however, this has never been investigated using human cerebrospinal fluid (CSF). We conducted this study to investigate the association between cigarette smoking and cognitive impairment through metal ions in CSF. Methods: We obtained 5-ml CSF samples from routine lumbar puncture procedures in patients undergoing anterior cruciate ligament reconstruction before surgery in China. A total of 180 Chinese males were recruited (80 active smokers and 100 non-smokers). We measured specific cigarette-related neurotoxic metal ions in CSF, including iron, copper, zinc, lead, aluminum, and manganese. Sociodemographic data and history of smoking were obtained. The Montreal Cognitive Assessment (MoCA) was applied. Results: Active smokers had fewer years of education (11.83 ± 3.13 vs. 13.17 ± 2.60, p = 0.01), and higher age (33.70 ± 10.20 vs. 29.76 ± 9.58, p = 0.01) and body mass index (25.84 ± 3.52 vs. 24.98 ± 4.06, p =0.03) than non-smokers. Compared to non-smokers, active smokers had significantly higher CSF levels of iron, zinc, lead, and aluminum and lower MoCA scores (all p < 0.05). Average daily numbers of cigarettes smoked negatively correlated with the MoCA scores (r = -0.244, p = 0.048). In young smokers, CSF manganese levels negatively correlated with MoCA scores (r = -0.373, p = 0.009). Conclusions and Relevance: Cigarette smoking might be associated with male cognitive impairment, as shown by lower MoCA scores and higher levels of CSF iron, zinc, lead, and aluminum in active smokers. This might be early evidence of cigarette smoking accelerating male cognitive impairment.
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Affiliation(s)
- Hui Li
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, China.,Xinjiang Key Laboratory of Neurological Disorder Research, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Qingshuang Mu
- Xinjiang Key Laboratory of Neurological Disorder Research, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yimin Kang
- Key Laboratory of Psychosomatic Medicine, Inner Mongolia Medical University, Hohhot, China
| | | | - Ligang Shan
- Department of Anesthesiology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Meiling Wang
- Key Laboratory of Psychosomatic Medicine, Inner Mongolia Medical University, Hohhot, China
| | - Cunbao Li
- Key Laboratory of Psychosomatic Medicine, Inner Mongolia Medical University, Hohhot, China
| | - Yanlong Liu
- School of Mental Health, Wenzhou Medical University, Wenzhou, China.,The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, China
| | - Fan Wang
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, China
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21
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Persson HL, Sioutas A, Jacobson P, Vainikka LK. Human Lung Macrophages Challenged to Oxidants ex vivo: Lysosomal Membrane Sensitization is Associated with Inflammation and Chronic Airflow Limitation. J Inflamm Res 2020; 13:925-932. [PMID: 33235481 PMCID: PMC7678820 DOI: 10.2147/jir.s280419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022] Open
Abstract
Background The lung macrophage (LM) is involved in most inflammatory processes of the human lung by clearance of dying cells and by wound repair. Upon cellular stress by oxidant challenge in vivo lysosomes may rupture in LMs and leakage of cellular content and cell debris may trigger airway inflammation and fibrosis, which may lead to chronic airflow limitation (CAL). Objective The aim of this study was to determine whether lysosomal membrane permeabilization (LMP) in LMs challenged to oxidants ex vivo is associated with airway inflammation and CAL, the latter assessed as the reduced forced expiratory volume in one second (FEV1) expressed as % of predicted. Materials and Methods Twenty-eight subjects were investigated; 13 lung-healthy subjects and 15 subjects with a variety of inflammatory disorders, demonstrating CAL on dynamic spirometry (defined as an FEV1/FVC ratio < 0.70). LMs were harvested by broncho-alveolar lavage (BAL) and challenged ex vivo by oxidants. LMP in oxidant-exposed LMs was assessed as the emitted acridine orange (AO) green fluorescence from oxidant-exposed LMs (using macrophage-like murine J774 cells as positive controls). Inflammatory cells in BAL were counted and lung volumes were recorded. Results Oxidant-induced LMP in LMs was significantly greater among subjects with CAL and particularly among those with ongoing inflammation. Previous tobacco history did not influence LMP. Among subjects with CAL, oxidant-induced LMP correlated negatively with FEV1% of predicted. Conclusion Lysosomes of LMs harvested from patients with CAL demonstrate an increased sensitivity to oxidants, which may trigger mechanisms behind CAL, eg, chronic airway inflammation and fibrotic re-modelling. The study suggests a mechanistic role for LMP in LMs on airway inflammation, suggesting an anti-inflammatory effect by drugs that prevent increased LMP.
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Affiliation(s)
- Hans Lennart Persson
- Department of Respiratory Medicine in Linköping, Linköping University, Linköping, Sweden.,Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Apostolos Sioutas
- Department of Respiratory Medicine in Linköping, Linköping University, Linköping, Sweden.,Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Petra Jacobson
- Department of Respiratory Medicine in Linköping, Linköping University, Linköping, Sweden.,Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Linda K Vainikka
- Department of Experimental Pathology, Linköping University, Linköping, Sweden.,Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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22
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Xu M, Zhang H, Yu N, Dong Y, Wang W, Chen Y, Kang J. Cigarette smoke extract induces the Pseudomonas aeruginosa nfxC drug-resistant phenotype. J Infect Chemother 2020; 26:1278-1282. [PMID: 32800691 DOI: 10.1016/j.jiac.2020.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 07/09/2020] [Accepted: 07/23/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND There is clinical and epidemiological evidence indicating that cigarette smoke exposure can significantly increase the usage of antibiotics by smokers to treat pulmonary infections, suggesting an increased risk of bacterial drug resistance. Pseudomonas aeruginosa is commonly found in infectious diseases closely related to cigarette smoke exposure and frequently acquires drug resistance. Recently, a study has demonstrated that cigarette smoke extract may induce Pseudomonas aeruginosa antibiotic resistance but the mechanism remain unknown. OBJECTIVES To explore the effect of cigarette smoke exposure on drug resistance in P. aeruginosa and the underlying mechanism using an in vitro model of cigarette smoke extract (CSE) exposure. METHODS P. aeruginosa strains PAO1, PA103 and ATCC27853 were used in this study. Changes in drug resistance in P. aeruginosa after CSE exposure were evaluated by antimicrobial susceptibility tests. Additionally, differentially expressed genes related to drug resistance were detected by transcriptome sequencing and qRT-PCR. RESULTS CSE increased both the MIC and MBC of levofloxacin and imipenem (MIC was not changed in ATCC 27853) against P. aeruginosa. However, CSE could only increase the minimum inhibitory concentration of tigecycline and minocycline against P. aeruginosa. Transcriptome sequencing and qRT-PCR indicated that MvaT and OprD levels decreased and MexEF-OprN levels increased. CONCLUSIONS Overall, our results showed that CSE may induce antibiotic resistance in P. aeruginosa. The results of antimicrobial susceptibility tests, transcriptome sequencing and qRT-PCR showed that CSE induced P. aeruginosa to the nfxC drug-resistant phenotype.
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Affiliation(s)
- Mingtao Xu
- Institute of Respiratory Diseases, The First Hospital of China Medical University, Shenyang, China
| | - Hanyin Zhang
- Institute of Respiratory Diseases, The First Hospital of China Medical University, Shenyang, China
| | - Na Yu
- Institute of Respiratory Diseases, The First Hospital of China Medical University, Shenyang, China
| | - Ying Dong
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Institute of Respiratory Diseases, The First Hospital of China Medical University, Shenyang, China
| | - Yu Chen
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Jian Kang
- Institute of Respiratory Diseases, The First Hospital of China Medical University, Shenyang, China.
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23
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Zhang WZ, Oromendia C, Kikkers SA, Butler JJ, O'Beirne S, Kim K, O'Neal WK, Freeman CM, Christenson SA, Peters SP, Wells JM, Doerschuk C, Putcha N, Barjaktarevic I, Woodruff PG, Cooper CB, Bowler RP, Comellas AP, Criner GJ, Paine R, Hansel NN, Han MK, Crystal RG, Kaner RJ, Ballman KV, Curtis JL, Martinez FJ, Cloonan SM. Increased airway iron parameters and risk for exacerbation in COPD: an analysis from SPIROMICS. Sci Rep 2020; 10:10562. [PMID: 32601308 PMCID: PMC7324559 DOI: 10.1038/s41598-020-67047-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/02/2020] [Indexed: 12/12/2022] Open
Abstract
Levels of iron and iron-related proteins including ferritin are higher in the lung tissue and lavage fluid of individuals with chronic obstructive pulmonary disease (COPD), when compared to healthy controls. Whether more iron in the extracellular milieu of the lung associates with distinct clinical phenotypes of COPD, including increased exacerbation susceptibility, is unknown. We measured iron and ferritin levels in the bronchoalveolar lavage fluid (BALF) of participants enrolled in the SubPopulations and InteRmediate Outcome Measures In COPD (SPIROMICS) bronchoscopy sub-study (n = 195). BALF Iron parameters were compared to systemic markers of iron availability and tested for association with FEV1 % predicted and exacerbation frequency. Exacerbations were modelled using a zero-inflated negative binomial model using age, sex, smoking, and FEV1 % predicted as clinical covariates. BALF iron and ferritin were higher in participants with COPD and in smokers without COPD when compared to non-smoker control participants but did not correlate with systemic iron markers. BALF ferritin and iron were elevated in participants who had COPD exacerbations, with a 2-fold increase in BALF ferritin and iron conveying a 24% and 2-fold increase in exacerbation risk, respectively. Similar associations were not observed with plasma ferritin. Increased airway iron levels may be representative of a distinct pathobiological phenomenon that results in more frequent COPD exacerbation events, contributing to disease progression in these individuals.
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Affiliation(s)
- William Z Zhang
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Clara Oromendia
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Population Health Sciences, Division of Biostatistics, Weill Cornell Medicine, New York, New York, USA
| | - Sarah Ann Kikkers
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - James J Butler
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - Sarah O'Beirne
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Kihwan Kim
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - Wanda K O'Neal
- University of North Carolina Marsico Lung Institute, Chapel Hill, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Christine M Freeman
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Stephanie A Christenson
- University of California at San Francisco, San Francisco, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Stephen P Peters
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - J Michael Wells
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama, UK
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Claire Doerschuk
- University of North Carolina Marsico Lung Institute, Chapel Hill, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Nirupama Putcha
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Igor Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Prescott G Woodruff
- University of California at San Francisco, San Francisco, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Christopher B Cooper
- Division of Pulmonary and Critical Care Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Russell P Bowler
- University of Colorado School of Medicine, Aurora, Colorado, USA
- National Jewish Health, Denver, Colorado, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Alejandro P Comellas
- Division of Pulmonary and Critical Care, University of Iowa, Iowa City, Iowa, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Gerard J Criner
- Department of Pulmonary & Critical Care Medicine, Temple University, Philadelphia, Pennsylvania, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Robert Paine
- Section of Pulmonary and Critical Care Medicine, Salt Lake City Department of Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Nadia N Hansel
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Meilan K Han
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Robert J Kaner
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Karla V Ballman
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Population Health Sciences, Division of Biostatistics, Weill Cornell Medicine, New York, New York, USA
| | - Jeffrey L Curtis
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Fernando J Martinez
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Suzanne M Cloonan
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA.
- School of Medicine, Trinity Biomedical Sciences Institute and Tallaght University Hospital, Trinity College Dublin, Trinity, Ireland.
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA.
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Akintunde JK, Abioye JB, Ebinama ON. Potential Protective Effects of Naringin on Oculo-Pulmonary Injury Induced by PM 10 (Wood Smoke) Exposure by Modulation of Oxidative Damage and Acetylcholine Esterase Activity in a Rat Model. CURRENT THERAPEUTIC RESEARCH 2020; 92:100586. [PMID: 32419878 PMCID: PMC7214769 DOI: 10.1016/j.curtheres.2020.100586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Millions of households in the world depend on wood and biomass for cooking and heating. This dependence leads to undesirable toxic effects, such as ocular and pulmonary toxicity. OBJECTIVES The present study examined the potential oculoprotective and pulmonary protective activity of naringin (NRG), a naturally occurring flavonoid, against wood smoke (WS)-induced toxicity in a rat model. METHODS Forty-eight adult male albino rats were randomly distributed into six (n=8) groups. All rats were fed, given water, and observed for 21 days, Group I (control) received only distilled water and no WS exposure, Group II was exposed to WS, Group III was exposed to WS and given 50 mg/kg/d α-tocopherol (vitamin E), Group IV was exposed to WS and given 80 mg/kg/day NRG, Group V was administered only 80 mg/kg/d NRG only, and Group VI was administered only 50 mg/kg/d vitamin E. WS exposure was for 20 min/d. The effect of NRG treatment on acetylcholinesterase activity, nitric oxide radical production, malondialdehyde level, and antioxidant enzymes (ie, superoxide dismustase and catalase) in WS-exposed rats was examined. RESULTS Subchronic (21 day) exposure to WS induced ocular and pulmonary toxicity manifested by the infiltration of parenchyma, atrophy, and inflammation of the cells, which was correlated with alterations in antioxidant enzyme concentrations. Cell damage was associated with an increase in acetylcholinesterase activity and nitric oxide radical concentrations. The toxicity triggered by WS was modulated by the coadministration of NRG. CONCLUSION These results suggest that NRG treatment may be useful to reduce WS-induced oxidative stress and related ocular and pulmonary damage in rats. (Curr Ther Res Clin Exp. 2012; 73:XXX-XXX).
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Affiliation(s)
- Jacob K. Akintunde
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture,Abeokuta, Ogun State, Nigeria
- Toxicology and Safety Unit, Department of Environmental Health Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | - Joseph B. Abioye
- Toxicology and Safety Unit, Department of Environmental Health Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | - Owen N. Ebinama
- Toxicology and Safety Unit, Department of Environmental Health Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
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25
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Lee J, Park HK, Kwon MJ, Ham SY, Kim JM, Lim SY, Song JU. Decreased lung function is associated with elevated ferritin but not iron or transferrin saturation in 42,927 healthy Korean men: A cross-sectional study. PLoS One 2020; 15:e0231057. [PMID: 32240239 PMCID: PMC7117746 DOI: 10.1371/journal.pone.0231057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 03/14/2020] [Indexed: 12/28/2022] Open
Abstract
Objectives Though elevated ferritin level and decreased lung function both predispose people to cardio-metabolic disease, few reports have investigated the association between them. Furthermore, it remains unclear whether the association reflects a change in iron stores or an epiphenomenon reflecting metabolic stress. Therefore, we looked for possible associations between ferritin, iron, and transferrin saturation (TSAT) and lung function to clarify the role of iron-related parameters in healthy men. Methods We conducted a cohort study of 42,927 healthy Korean men (mean age: 38.6 years). Percent predicted forced expiratory volume in one second (FEV1%) and forced vital capacity (FVC%) were categorized into quartiles. Adjusted odds ratios (aORs) and 95% confidence intervals (using the highest quartile as reference) were calculated for hyperferritinemia, high iron, and high TSAT after controlling for potential confounders. Results The median ferritin level was 199.8 (141.5–275.6) ng/mL. The prevalence of hyperferritinemia (defined as >300 ng/mL) was 19.3%. Subjects with hyperferritinemia had lower FEV1% and FVC% than those with normal ferritin level with a slight difference, but those were statistically significant (99.22% vs.99.61% for FEV1%, p = 0.015 and 98.43% vs. 98.87% for FVC, p = 0.001). However, FEV1/FVC ratio was not significantly different between groups (P = 0.797). Compared with the highest quartile, the aORs for hyperferritinemia across decreasing quartiles were 1.081 (1.005–1.163), 1.100 (1.007–1.200), and 1.140 (1.053–1.233) for FEV1% (p for trend = 0.007) and 1.094 (1.018–1.176), 1.101 (1.021–1.188), and 1.150 (1.056–1.252) for FVC% (p for trend = 0.001). However, neither FEV1% nor FVC% was associated with iron or TSAT. Conclusions Hyperferritinemia was associated with decreased lung function in healthy Korean men, but iron and TSAT were not. Longitudinal follow-up studies are required to validate our findings.
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Affiliation(s)
- Jonghoo Lee
- Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Hye kyeong Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ilsan Paik Hospital, Inje University College of Medicine, Ilsan, Republic of Korea
| | - Min-Jung Kwon
- Department of Laboratory Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Soo-Youn Ham
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Joon Mo Kim
- Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Si-Young Lim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae-Uk Song
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- * E-mail:
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Aghapour M, Remels AHV, Pouwels SD, Bruder D, Hiemstra PS, Cloonan SM, Heijink IH. Mitochondria: at the crossroads of regulating lung epithelial cell function in chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2020; 318:L149-L164. [PMID: 31693390 PMCID: PMC6985875 DOI: 10.1152/ajplung.00329.2019] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022] Open
Abstract
Disturbances in mitochondrial structure and function in lung epithelial cells have been implicated in the pathogenesis of various lung diseases, including chronic obstructive pulmonary disease (COPD). Such disturbances affect not only cellular energy metabolism but also alter a range of indispensable cellular homeostatic functions in which mitochondria are known to be involved. These range from cellular differentiation, cell death pathways, and cellular remodeling to physical barrier function and innate immunity, all of which are known to be impacted by exposure to cigarette smoke and have been linked to COPD pathogenesis. Next to their well-established role as the first physical frontline against external insults, lung epithelial cells are immunologically active. Malfunctioning epithelial cells with defective mitochondria are unable to maintain homeostasis and respond adequately to further stress or injury, which may ultimately shape the phenotype of lung diseases. In this review, we provide a comprehensive overview of the impact of cigarette smoke on the development of mitochondrial dysfunction in the lung epithelium and highlight the consequences for cell function, innate immune responses, epithelial remodeling, and epithelial barrier function in COPD. We also discuss the applicability and potential therapeutic value of recently proposed strategies for the restoration of mitochondrial function in the treatment of COPD.
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Alexander H V Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Simon D Pouwels
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Stanford I, Weill Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
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Celsi F, Crovella S, Moura RR, Schneider M, Vita F, Finotto L, Zabucchi G, Zacchi P, Borelli V. Pleural mesothelioma and lung cancer: the role of asbestos exposure and genetic variants in selected iron metabolism and inflammation genes. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:1088-1102. [PMID: 31755376 DOI: 10.1080/15287394.2019.1694612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two of the major cancerous diseases associated with asbestos exposure are malignant pleural mesothelioma (MPM) and lung cancer (LC). In addition to asbestos exposure, genetic factors have been suggested to be associated with asbestos-related carcinogenesis and lung genotoxicity. While genetic factors involved in the susceptibility to MPM were reported, to date the influence of individual genetic variations on asbestos-related lung cancer risk is still poorly understood. Since inflammation and disruption of iron (Fe) homeostasis are hallmarks of asbestos exposure affecting the pulmonary tissue, this study aimed at investigating the association between Fe-metabolism and inflammasome gene variants and susceptibility to develop LC or MPM, by comparing an asbestos-exposed population affected by LC with an "asbestos-resistant exposed population". A retrospective approach similar to our previous autopsy-based pilot study was employed in a novel cohort of autoptic samples, thus giving us the possibility to corroborate previous findings obtained on MPM by repeating the analysis in a novel cohort of autoptic samples. The protective role of HEPH coding SNP was further confirmed. In addition, the two non-coding SNPs, either in FTH1 or in TF, emerged to exert a similar protective role in a new cohort of LC exposed individuals from the same geographic area of MPM subjects. No association was found between NLRP1 and NLRP3 polymorphisms with susceptibility to develop MPM and LC. Further research into a specific MPM and LC "genetic signature" may be needed to broaden our knowledge of the genetic landscape attributed to result in MPM and LC.
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Affiliation(s)
- F Celsi
- Lega Italiana per la Lotta contro i Tumori (LILT), Italy
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - S Crovella
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
- Department of Medical, Surgical and Health Sciences, University of Trieste, Ospedale di Cattinara, Trieste, Italy
| | - R R Moura
- Department of Genetics, Federal University of Pernambuco, Recife, Brazil
| | - M Schneider
- Laboratory of Pathological Anatomy, AAS2 "Bassa Friulana-Isontina" - S. Polo General Hospital, Monfalcone, Italy
| | - F Vita
- Laboratory of Pathological Anatomy, AAS2 "Bassa Friulana-Isontina" - S. Polo General Hospital, Monfalcone, Italy
| | - L Finotto
- Workplace Safety and Prevention, AAS2 "Bassa Friulana-Isontina" - S. Polo General Hospital, Monfalcone, Italy
| | - G Zabucchi
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - P Zacchi
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - V Borelli
- Department of Life Sciences, University of Trieste, Trieste, Italy
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Spencer BR, Guo Y, Cable RG, Kiss JE, Busch MP, Page GP, Endres-Dighe SM, Kleinman S, Glynn SA, Mast AE. Iron status and risk factors for iron depletion in a racially/ethnically diverse blood donor population. Transfusion 2019; 59:3146-3156. [PMID: 31318071 DOI: 10.1111/trf.15448] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/17/2019] [Accepted: 06/20/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The optimal approach for reducing iron depletion (ID) in blood donors may vary depending on biologic or behavioral differences across donors. STUDY DESIGN AND METHODS More than 12,600 successful whole blood donors were enrolled from four US blood centers for ferritin testing. The study population was enriched for racial/ethnic minorities (1605 African American, 1616 Asian, 1023 Hispanic). Subjects completed questionnaires on ID risk factors. Logistic regression identified predictors of absent iron stores (AIS; ferritin <12 ng/mL) and low ferritin (LF; ferritin <26 ng/mL). RESULTS Across all subjects, 19% had AIS and 42% had LF, with a sharp increase in risk observed with increasing donation intensity and among women a large decrease in risk in those more than 50 years old. When other factors were controlled for, African American and Asian donors showed 20% to 25% decreased risk for AIS compared to non-Hispanic Caucasian donors, while Hispanic donors had 25% higher risk. Daily iron supplementation reduced risk for LF and AIS by 30% to 40%, respectively, while the benefit from less frequent use was lower (7%-19% protection). Regular antacid use was associated with at least 20% increment to risk. Use of oral contraceptives or estrogen in females reduced risk by 16% to 22%, while males who reported supplemental testosterone use had a 50% to 125% greater risk for LF and AIS. CONCLUSIONS This study confirms high prevalence of LF and AIS in US donors and the principal risk factors of age, sex, and donation frequency. Additional demographic and behavioral risk factors of secondary importance might allow for refinement of ID mitigation strategies.
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Affiliation(s)
- Bryan R Spencer
- American Red Cross Scientific Affairs, Dedham, Massachusetts
| | | | | | - Joseph E Kiss
- Vitalant Northeast Division (formerly The Institute for Transfusion Medicine), Pittsburgh, Pennsylvania
| | | | | | | | - Steven Kleinman
- University of British Columbia, Victoria, British Columbia, Canada
| | - Simone A Glynn
- National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Alan E Mast
- Blood Research Institute, Versiti (formerly, Blood Center of Wisconsin), Milwaukee, Wisconsin.,Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin
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Poon J, Campos M, Foronjy RF, Nath S, Gupta G, Railwah C, Dabo AJ, Baumlin N, Salathe M, Geraghty P. Cigarette smoke exposure reduces leukemia inhibitory factor levels during respiratory syncytial viral infection. Int J Chron Obstruct Pulmon Dis 2019; 14:1305-1315. [PMID: 31417248 PMCID: PMC6592033 DOI: 10.2147/copd.s196658] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 04/12/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Viral infections are considered a major driving factor of chronic obstructive pulmonary disease (COPD) exacerbations and thus contribute to disease morbidity and mortality. Respiratory syncytial virus (RSV) is a frequently detected pathogen in the respiratory tract of COPD patients during an exacerbation. We previously demonstrated in a murine model that leukemia inhibitory factor (LIF) expression was increased in the lungs during RSV infection. Subduing LIF signaling in this model enhanced lung injury and airway hypersensitivity. In this study, we investigated lung LIF levels in COPD patient samples to determine the impact of disease status and cigarette smoke exposure on LIF expression. Materials and methods: Bronchoalveolar lavage fluid (BALF) was obtained from healthy never smokers, smokers, and COPD patients, by written informed consent. Human bronchial epithelial (HBE) cells were isolated from healthy never smokers and COPD patients, grown at the air-liquid interface and infected with RSV or stimulated with polyinosinic:polycytidylic acid (poly (i:c)). Mice were exposed to cigarette smoke daily for 6 months and were subsequently infected with RSV. LIF expression was profiled in all samples. Results: In human BALF, LIF protein was significantly reduced in both smokers and COPD patients compared to healthy never smokers. HBE cells isolated from COPD patients produced less LIF compared to never smokers during RSV infection or poly (i:c) stimulation. Animals exposed to cigarette smoke had reduced lung levels of LIF and its corresponding receptor, LIFR. Smoke-exposed animals had reduced LIF expression during RSV infection. Two possible factors for reduced LIF levels were increased LIF mRNA instability in COPD epithelia and proteolytic degradation of LIF protein by serine proteases. Conclusions: Cigarette smoke is an important modulator for LIF expression in the lungs. Loss of LIF expression in COPD could contribute to a higher degree of lung injury during virus-associated exacerbations.
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Affiliation(s)
- Justin Poon
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Michael Campos
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Miami, Miami, FL, USA
| | - Robert F Foronjy
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Sridesh Nath
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Gayatri Gupta
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Christopher Railwah
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Abdoulaye J Dabo
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Nathalie Baumlin
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Matthias Salathe
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Patrick Geraghty
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, USA
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Harigae H, Hino K, Toyokuni S. Iron as Soul of Life on Earth Revisited: From Chemical Reaction, Ferroptosis to Therapeutics. Free Radic Biol Med 2019; 133:1-2. [PMID: 30736912 DOI: 10.1016/j.freeradbiomed.2019.01.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hideo Harigae
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Keisuke Hino
- Department of Hepatology and Pancreatology, Kawasaki Medical School, Kurashiki, Japan.
| | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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