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Lin CC, Chen WJ, Sun YK, Chiu CH, Lin MW, Tzeng IS. Continuous positive airway pressure affects mitochondrial function and exhaled PGC1-α levels in obstructive sleep apnea. Exp Lung Res 2021; 47:476-486. [PMID: 34762001 DOI: 10.1080/01902148.2021.2001607] [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: 10/19/2022]
Abstract
Purpose: Subjects with obstructive sleep apnea (OSA) exhibit systemic and upper airway oxidative stress and inflammation, which cause mitochondrial dysfunction. The intend of this study is to estimate mitochondrial function (mitochondrial DNA/nuclear DNA [Mt/N] ratio) and protein levels of peroxisome proliferator-coactivated receptor gamma co-activator 1-alpha (PGC1-α) in the exhaled breath condensate (EBC) and plasma before and after continuous positive airway pressure (CPAP) treatment. Materials and methods: Twenty healthy individuals (control) and 40 subjects with severe or moderate OSA were recruited to undergo CPAP treatment and evaluation in a sleep study. The Mt/N ratio in the EBC and blood were assayed by quantitative real-time polymerase chain reaction. Enzyme-linked immunosorbent assay was used to measure the protein concentration of PGC1-α in the EBC and plasma. All experiments were performed after 3 months of CPAP treatment in subjects with OSA. Results: We observed no noteworthy differences between the control and treatment groups. Moreover, there were no differences in the Mt/N ratio in the blood and plasma levels of PGC1-α in subjects with OSA before and after treatment. However, the Mt/N ratio and protein levels of PGC1-α in the EBC of OSA subjects were higher than those in the control group and returned to normal levels after CPAP treatment. Conclusions: We successfully treated subjects with OSA by CPAP, which restored the Mt/N ratio and levels of PGC1-α in the EBC.
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Affiliation(s)
- Ching-Chi Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Wei-Ji Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Lukang Christian Hospital, Changhua, Taiwan
| | - Yi-Kun Sun
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Chung-Hsin Chiu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Mei-Wei Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
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Schivo M, Albertson TE, Haczku A, Kenyon NJ, Zeki AA, Kuhn BT, Louie S, Avdalovic MV. Paradigms in chronic obstructive pulmonary disease: phenotypes, immunobiology, and therapy with a focus on vascular disease. J Investig Med 2017; 65:953-963. [PMID: 28258130 DOI: 10.1136/jim-2016-000358] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2017] [Indexed: 12/21/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a complex and heterogeneous syndrome that represents a major global health burden. COPD phenotypes have recently emerged based on large cohort studies addressing the need to better characterize the syndrome. Though comprehensive phenotyping is still at an early stage, factors such as ethnicity and radiographic, serum, and exhaled breath biomarkers have shown promise. COPD is also an immunological disease where innate and adaptive immune responses to the environment and tobacco smoke are altered. The frequent overlap between COPD and other systemic diseases, such as cardiovascular disease, has influenced COPD therapy, and treatments for both conditions may lead to improved patient outcomes. Here, we discuss current paradigms that center on improving the definition of COPD, understanding the immunological overlap between COPD and vascular inflammation, and the treatment of COPD-with a focus on comorbid cardiovascular disease.
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Affiliation(s)
- Michael Schivo
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Center for Comparative Respiratory Biology and Medicine, Genome and Biomedical Sciences Facility, University of California Davis, Davis, California, USA
| | - Timothy E Albertson
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Department of Medicine, Veterans Administration Northern California Healthcare System, Mather, California, USA
| | - Angela Haczku
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Center for Comparative Respiratory Biology and Medicine, Genome and Biomedical Sciences Facility, University of California Davis, Davis, California, USA
| | - Nicholas J Kenyon
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Center for Comparative Respiratory Biology and Medicine, Genome and Biomedical Sciences Facility, University of California Davis, Davis, California, USA
| | - Amir A Zeki
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Center for Comparative Respiratory Biology and Medicine, Genome and Biomedical Sciences Facility, University of California Davis, Davis, California, USA
| | - Brooks T Kuhn
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA
| | - Samuel Louie
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Center for Comparative Respiratory Biology and Medicine, Genome and Biomedical Sciences Facility, University of California Davis, Davis, California, USA
| | - Mark V Avdalovic
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA.,Department of Medicine, Veterans Administration Northern California Healthcare System, Mather, California, USA
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Airoldi C, Ciaramelli C, Fumagalli M, Bussei R, Mazzoni V, Viglio S, Iadarola P, Stolk J. 1H NMR To Explore the Metabolome of Exhaled Breath Condensate in α1-Antitrypsin Deficient Patients: A Pilot Study. J Proteome Res 2016; 15:4569-4578. [DOI: 10.1021/acs.jproteome.6b00648] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Cristina Airoldi
- Department
of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy
| | - Carlotta Ciaramelli
- Department
of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy
| | | | - Rita Bussei
- Department
of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy
| | - Valeria Mazzoni
- Department
of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy
| | | | | | - Jan Stolk
- Department
of Pulmonology, Leiden University Medical Center, 2333 Leiden, The Netherlands
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