PMID- 28744117 OWN - NLM STAT- MEDLINE DCOM- 20180430 LR - 20181113 IS - 1178-2005 (Electronic) IS - 1176-9106 (Print) IS - 1176-9106 (Linking) VI - 12 DP - 2017 TI - Alteration of the irisin-brain-derived neurotrophic factor axis contributes to disturbance of mood in COPD patients. PG - 2023-2033 LID - 10.2147/COPD.S135701 [doi] AB - COPD is accompanied by limited physical activity, worse quality of life, and increased prevalence of depression. A possible link between COPD and depression may be irisin, a myokine, expression of which in the skeletal muscle and brain positively correlates with physical activity. Irisin enhances the synthesis of brain-derived neurotrophic factor (BDNF), a neurotrophin involved in reward-related processes. Thus, we hypothesized that mood disturbances accompanying COPD are reflected by the changes in the irisin-BDNF axis. Case history, routine laboratory parameters, serum irisin and BDNF levels, pulmonary function, and disease-specific quality of life, measured by St George's Respiratory Questionnaire (SGRQ), were determined in a cohort of COPD patients (n=74). Simple and then multiple linear regression were used to evaluate the data. We found that mood disturbances are associated with lower serum irisin levels (SGRQ's Impacts score and reciprocal of irisin showed a strong positive association; beta: 419.97; 95% confidence interval [CI]: 204.31, 635.63; P<0.001). This association was even stronger among patients in the lower 50% of BDNF levels (beta: 434.11; 95% CI: 166.17, 702.05; P=0.002), while it became weaker for patients in the higher 50% of BDNF concentrations (beta: 373.49; 95% CI: -74.91, 821.88; P=0.1). These results suggest that irisin exerts beneficial effect on mood in COPD patients, possibly by inducing the expression of BDNF in brain areas associated with reward-related processes involved in by depression. Future interventional studies targeting the irisin-BDNF axis (eg, endurance training) are needed to further support this notion. FAU - Papp, Csaba AU - Papp C AD - Department of Health Systems Management and Quality Management for Health Care, Faculty of Public Health. FAU - Pak, Krisztian AU - Pak K AD - Department of Pharmacology and Pharmacotherapy, Faculty of Medicine. FAU - Erdei, Tamas AU - Erdei T AD - Department of Pharmacology and Pharmacotherapy, Faculty of Medicine. FAU - Juhasz, Bela AU - Juhasz B AD - Department of Pharmacology and Pharmacotherapy, Faculty of Medicine. FAU - Seres, Ildiko AU - Seres I AD - Department of Internal Medicine, Faculty of Medicine, University of Debrecen. FAU - Szentpeteri, Anita AU - Szentpeteri A AD - Department of Internal Medicine, Faculty of Medicine, University of Debrecen. FAU - Kardos, Laszlo AU - Kardos L AD - Department of Clinical Pharmacology, Infectious Diseases and Allergology, Kenezy Gyula Teaching County Hospital and Outpatient Clinic. FAU - Szilasi, Maria AU - Szilasi M AD - Department of Pulmonology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary. FAU - Gesztelyi, Rudolf AU - Gesztelyi R AD - Department of Pharmacology and Pharmacotherapy, Faculty of Medicine. FAU - Zsuga, Judit AU - Zsuga J AD - Department of Health Systems Management and Quality Management for Health Care, Faculty of Public Health. LA - eng PT - Journal Article DEP - 20170707 PL - New Zealand TA - Int J Chron Obstruct Pulmon Dis JT - International journal of chronic obstructive pulmonary disease JID - 101273481 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (FNDC5 protein, human) RN - 0 (Fibronectins) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - *Affect MH - Aged MH - Brain/*metabolism/physiopathology MH - Brain-Derived Neurotrophic Factor/*blood MH - Chi-Square Distribution MH - Cross-Sectional Studies MH - Depression/*blood/diagnosis/physiopathology/psychology MH - Female MH - Fibronectins/*blood MH - Forced Expiratory Volume MH - Humans MH - Linear Models MH - Lung/physiopathology MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Pulmonary Disease, Chronic Obstructive/*blood/diagnosis/physiopathology/psychology MH - Quality of Life MH - Respiratory Function Tests MH - Reward MH - Risk Factors MH - Signal Transduction MH - Surveys and Questionnaires PMC - PMC5511021 OTO - NOTNLM OT - BDNF OT - SGRQ OT - irisin OT - whole-body plethysmography COIS- Disclosure The authors report no conflicts of interest in this work. EDAT- 2017/07/27 06:00 MHDA- 2018/05/01 06:00 PMCR- 2017/07/07 CRDT- 2017/07/27 06:00 PHST- 2017/07/27 06:00 [entrez] PHST- 2017/07/27 06:00 [pubmed] PHST- 2018/05/01 06:00 [medline] PHST- 2017/07/07 00:00 [pmc-release] AID - copd-12-2023 [pii] AID - 10.2147/COPD.S135701 [doi] PST - epublish SO - Int J Chron Obstruct Pulmon Dis. 2017 Jul 7;12:2023-2033. doi: 10.2147/COPD.S135701. eCollection 2017.