PMID- 23739920 OWN - NLM STAT- MEDLINE DCOM- 20150105 LR - 20220409 IS - 1437-160X (Electronic) IS - 0172-8172 (Linking) VI - 34 IP - 6 DP - 2014 Jun TI - Effect of exercise on the plasma BDNF levels in elderly women with knee osteoarthritis. PG - 841-6 LID - 10.1007/s00296-013-2786-0 [doi] AB - Knee osteoarthritis is a common disease in the elderly population worldwide. The alleviation of the symptoms associated with this disease can be achieved with physical exercise that induces a cascade of molecular and cellular processes. Of the neurotrophins, brain-derived neurotrophic factor (BDNF) appears to be the most affected by physical activity. Moreover, BDNF seems to have a negative modulatory role in inflammation, and its production by skeletal muscle cells or by cells of the immune system drives the immunoprotective role of physical activity in situations of chronic inflammation. Therefore, the aim of this study was to evaluate plasma BDNF concentrations in elderly individuals presenting with knee osteoarthritis. To accomplish this, sixteen volunteers (mean age 67 +/- 4.41 years) presenting with clinically and radiographically diagnosed knee osteoarthritis were evaluated during acute exercise (1 session of 20 min on a treadmill) and after chronic exercise (12 weeks of aerobic training, consisting of a 50-min walk 3 times per week). Additionally, both a functional assessment (during a 6-min walk) and a pain perception assessment were performed at the start and at the end of physical exercises (training). The plasma BDNF concentrations were measured by ELISA. For the population studied, acute exercise increased the levels of BDNF only before the 12-week training period (p < 0.001). Moreover, the training augmented the plasma concentrations of BDNF (p < 0.0001) and improved clinical parameters (functional p < 0.001; pain perception p < 0.01). FAU - Gomes, Wellington F AU - Gomes WF AD - Integrated Center for Graduate Studies and Research Health (CIPq-Health), Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, Minas Gerais, Brazil, wellingtonufvjm@gmail.com. FAU - Lacerda, Ana Cristina R AU - Lacerda AC FAU - Mendonca, Vanessa A AU - Mendonca VA FAU - Arrieiro, Arthur N AU - Arrieiro AN FAU - Fonseca, Sueli F AU - Fonseca SF FAU - Amorim, Mateus R AU - Amorim MR FAU - Teixeira, Antonio L AU - Teixeira AL FAU - Teixeira, Mauro M AU - Teixeira MM FAU - Miranda, Aline S AU - Miranda AS FAU - Coimbra, Candido C AU - Coimbra CC FAU - Brito-Melo, Gustavo E A AU - Brito-Melo GE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130606 PL - Germany TA - Rheumatol Int JT - Rheumatology international JID - 8206885 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Aged MH - Brain-Derived Neurotrophic Factor/*blood MH - Cohort Studies MH - Exercise/*physiology MH - Exercise Test MH - *Exercise Therapy MH - Female MH - Humans MH - Osteoarthritis, Knee/blood/*therapy MH - Pain Perception/physiology MH - Treatment Outcome EDAT- 2013/06/07 06:00 MHDA- 2015/01/06 06:00 CRDT- 2013/06/07 06:00 PHST- 2013/05/16 00:00 [received] PHST- 2013/05/20 00:00 [accepted] PHST- 2013/06/07 06:00 [entrez] PHST- 2013/06/07 06:00 [pubmed] PHST- 2015/01/06 06:00 [medline] AID - 10.1007/s00296-013-2786-0 [doi] PST - ppublish SO - Rheumatol Int. 2014 Jun;34(6):841-6. doi: 10.1007/s00296-013-2786-0. Epub 2013 Jun 6.