PMID- 35854898 OWN - NLM STAT- MEDLINE DCOM- 20220721 LR - 20220728 IS - 1178-2005 (Electronic) IS - 1176-9106 (Print) IS - 1176-9106 (Linking) VI - 17 DP - 2022 TI - Serum Derivatives of Reactive Oxygen Metabolites are Associated with Severity of Chronic Obstructive Pulmonary Disease and Affected by a p53 Gene Polymorphism. PG - 1589-1600 LID - 10.2147/COPD.S366792 [doi] AB - PURPOSE: Oxidative stress is known to activate tumor suppressor p53, which inhibits cell cycle progression and induces apoptosis. Levels of p53 in lung tissues from patients with chronic obstructive pulmonary disease (COPD) are increased compared with levels in nonsmokers or smokers without emphysema. A polymorphism in p53 codon 72 (rs1042522) is associated with emphysematous changes in patients with COPD. However, whether oxidative stress in the serum is associated with the p53 polymorphism and disease severity in COPD patients is unclear. PATIENTS AND METHODS: A total of 251 patients with a history of smoking more than 10 pack-years were enrolled in this study, and serum levels of derivatives of reactive oxygen metabolites (d-ROMs), biological antioxidant potential (BAP), and d-ROMs/BAP ratio (oxidative stress index; OSI) were measured. The percent low-attenuation area (LAA%) and cross-sectional area of the erector spinae muscles (ESM(CSA)) at the Th(12) level were calculated from chest high-resolution computed tomography images. p53 codon 72 C/G genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism analysis. RESULTS: In patients carrying the p53 GG genotype, LAA% was significantly higher than in those carrying the CC genotype. d-ROM levels and OSI were associated with COPD severity and correlated with airflow limitation and markers of muscle atrophy (ESM(CSA) and creatinine/cystatin C ratio). Associations between markers of oxidative stress and COPD severity were observed primarily in patients carrying the p53 codon 72 GG genotype. CONCLUSION: Susceptibility to pulmonary emphysema and responses to oxidative stress may be affected by the p53 gene polymorphism. CI - (c) 2022 Yamamura et al. FAU - Yamamura, Koichi AU - Yamamura K AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Nojiri, Masafumi AU - Nojiri M AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Nishiki, Kazuaki AU - Nishiki K AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Kato, Ryo AU - Kato R AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Shinomiya, Shohei AU - Shinomiya S AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Takahara, Yutaka AU - Takahara Y AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Oikawa, Taku AU - Oikawa T AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Ishizaki, Takeshi AU - Ishizaki T AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Toga, Hirohisa AU - Toga H AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. FAU - Mizuno, Shiro AU - Mizuno S AD - Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan. LA - eng PT - Journal Article DEP - 20220713 PL - New Zealand TA - Int J Chron Obstruct Pulmon Dis JT - International journal of chronic obstructive pulmonary disease JID - 101273481 RN - 0 (Reactive Oxygen Species) RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) SB - IM MH - *Emphysema/complications MH - Humans MH - Polymorphism, Genetic MH - *Pulmonary Disease, Chronic Obstructive/complications/diagnosis/genetics MH - *Pulmonary Emphysema/blood/diagnosis/genetics MH - *Reactive Oxygen Species/blood MH - Tumor Suppressor Protein p53/genetics PMC - PMC9289177 OTO - NOTNLM OT - low attenuation area OT - oxidative stress OT - sarcopenia OT - smoking status COIS- The authors report no conflicts of interest in this work. The authors confirm that the data supporting the findings of this study are available within the article. EDAT- 2022/07/21 06:00 MHDA- 2022/07/22 06:00 PMCR- 2022/07/13 CRDT- 2022/07/20 02:07 PHST- 2022/03/17 00:00 [received] PHST- 2022/07/04 00:00 [accepted] PHST- 2022/07/20 02:07 [entrez] PHST- 2022/07/21 06:00 [pubmed] PHST- 2022/07/22 06:00 [medline] PHST- 2022/07/13 00:00 [pmc-release] AID - 366792 [pii] AID - 10.2147/COPD.S366792 [doi] PST - epublish SO - Int J Chron Obstruct Pulmon Dis. 2022 Jul 13;17:1589-1600. doi: 10.2147/COPD.S366792. eCollection 2022.