PMID- 33143144 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201128 IS - 2076-3921 (Print) IS - 2076-3921 (Electronic) IS - 2076-3921 (Linking) VI - 9 IP - 11 DP - 2020 Oct 30 TI - Effects of Pirfenidone and Nintedanib on Markers of Systemic Oxidative Stress and Inflammation in Patients with Idiopathic Pulmonary Fibrosis: A Preliminary Report. LID - 10.3390/antiox9111064 [doi] LID - 1064 AB - INTRODUCTION: In vitro evidence suggests that pirfenidone and nintedanib, approved agents for the treatment of idiopathic pulmonary fibrosis (IPF), exert anti-inflammatory and anti-oxidant effects. We aimed to investigate such effects in vivo in IPF patients. METHODS: Systemic circulating markers of oxidative stress [nuclear factor erythroid 2-related factor 2 (Nrf2), thiobarbituric acid- reactive substances (TBARS), homocysteine (Hcy), cysteine (Cys), asymmetric dimethylarginine (ADMA) and ADMA/Arginine ratio, glutathione (GSH), plasma protein -SH (PSH), and taurine (Tau)] and inflammation [Kynurenine (Kyn), Tryptophan (Trp) and Kyn/Trp ratio] were measured at baseline and after 24-week treatment in 18 IPF patients (10 treated with pirfenidone and 8 with nintedanib) and in 18 age- and sex-matched healthy controls. RESULTS: Compared to controls, IPF patients had significantly lower concentrations of reduced blood GSH (457 +/- 73 micromol/L vs 880 +/- 212 micromol/L, p < 0.001) and plasma PSH (4.24 +/- 0.95 micromol/g prot vs 5.28 +/- 1.35 micromol/g prot, p = 0.012). Pirfenidone treatment significantly decreased the Kyn/Trp ratio (0.030 +/- 0.011 baseline vs 0.025 +/- 0.010 post-treatment, p = 0.048) whilst nintedanib treatment significantly increased blood GSH (486 +/- 70 mumol/L vs 723 +/- 194 mumol/L, p = 0.006) and reduced ADMA concentrations (0.501 +/- 0.094 vs. 0.468 +/- 0.071 mumol/L, p = 0.024). CONCLUSION: pirfenidone and nintedanib exert beneficial effects on specific markers of oxidative stress and inflammation in IPF patients. FAU - Fois, Alessandro G AU - Fois AG AD - Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Sotgiu, Elisabetta AU - Sotgiu E AD - Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Scano, Valentina AU - Scano V AD - Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Negri, Silvia AU - Negri S AD - Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Mellino, Sabrina AU - Mellino S AD - Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Zinellu, Elisabetta AU - Zinellu E AD - Unit of Respiratory Diseases, University Hospital Sassari (AOU), 07100 Sassari, Italy. FAU - Pirina, Pietro AU - Pirina P AUID- ORCID: 0000-0003-1457-8025 AD - Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Pintus, Gianfranco AU - Pintus G AUID- ORCID: 0000-0002-3031-7733 AD - Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy. AD - Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah P.O Box 27272, UAE. FAU - Carru, Ciriaco AU - Carru C AUID- ORCID: 0000-0002-6985-4907 AD - Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy. FAU - Mangoni, Arduino A AU - Mangoni AA AUID- ORCID: 0000-0001-8699-1412 AD - Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide 5100, Australia. FAU - Zinellu, Angelo AU - Zinellu A AUID- ORCID: 0000-0002-8396-0968 AD - Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy. LA - eng GR - RASSR82005/Regione Autonoma della Sardegna/ PT - Journal Article DEP - 20201030 PL - Switzerland TA - Antioxidants (Basel) JT - Antioxidants (Basel, Switzerland) JID - 101668981 PMC - PMC7692317 OTO - NOTNLM OT - idiopathic pulmonary fibrosis OT - inflammation OT - nintedanib OT - oxidative stress OT - pirfenidone COIS- The authors declare no conflict of interest. EDAT- 2020/11/05 06:00 MHDA- 2020/11/05 06:01 PMCR- 2020/10/30 CRDT- 2020/11/04 01:03 PHST- 2020/09/14 00:00 [received] PHST- 2020/10/18 00:00 [revised] PHST- 2020/10/28 00:00 [accepted] PHST- 2020/11/04 01:03 [entrez] PHST- 2020/11/05 06:00 [pubmed] PHST- 2020/11/05 06:01 [medline] PHST- 2020/10/30 00:00 [pmc-release] AID - antiox9111064 [pii] AID - antioxidants-09-01064 [pii] AID - 10.3390/antiox9111064 [doi] PST - epublish SO - Antioxidants (Basel). 2020 Oct 30;9(11):1064. doi: 10.3390/antiox9111064.