PMID- 28376368 OWN - NLM STAT- MEDLINE DCOM- 20180110 LR - 20181202 IS - 1872-6976 (Electronic) IS - 0167-4943 (Linking) VI - 71 DP - 2017 Jul TI - Brain-derived neurotrophic factor plasma levels are increased in older women after an acute episode of low back pain. PG - 75-82 LID - S0167-4943(17)30201-7 [pii] LID - 10.1016/j.archger.2017.03.005 [doi] AB - BACKGROUND: Low back pain (LBP) is a growing public health problem in old age, and it is associated with disabling pain and depressive disorders. We compared brain-derived neurotrophic factor (BDNF) plasma levels, a key neurotrophin in pain modulation, between older women after an acute episode of LBP and age-matched pain-free controls, and investigated potential differences in BDNF levels between controls and LBP subgroups based on pain severity, presence of depressive symptoms and use of analgesic and antidepressant drugs. METHODS: A total of 221 participants (154 with LBP and 67 pain-free) were studied. A comprehensive assessment of sociodemographic and clinical variables was conducted including pain severity (11-point NRS), depressive symptoms (GDS-15), age, body mass index, physical activity and total number of comorbidities and medications in use. RESULTS: BDNF levels in LBP group were significantly higher than controls (7515.9+/-3021.2; Md=7116.0 vs 6331.8+/-3364.0; Md=5897.5pg/mL, P=0.005). LBP subgroups exhibited higher BDNF levels than controls, regardless of pain severity, presence of depressive symptoms and use of analgesic drugs. BDNF levels were significantly higher in LBP subgroup without use of antidepressant drugs compared to both controls and LBP subgroup with use of antidepressant drugs. DISCUSSION: This study provides evidence that older women with acute low back pain exhibit higher BDNF plasma levels compared to pain-free controls. Subgroup comparisons suggest that use of pain-relief drugs may influence BDNF levels. The study results offer a novel target for research on mechanisms of back pain in older adults. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Diz, Juliano Bergamaschine Mata AU - Diz JBM AD - Department of Physical Therapy, Postgraduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antonio Carlos Avenue, 31270-901, Belo Horizonte, Minas Gerais, Brazil. Electronic address: julianodiz@gmail.com. FAU - de Souza Moreira, Bruno AU - de Souza Moreira B AD - Department of Physical Therapy, Postgraduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antonio Carlos Avenue, 31270-901, Belo Horizonte, Minas Gerais, Brazil. Electronic address: brunosouzamoreira@gmail.com. FAU - Felicio, Diogo Carvalho AU - Felicio DC AD - Department of Physical Therapy, Universidade Federal de Juiz de Fora, s/n Eugenio do Nascimento Avenue, 36038-330, Juiz de Fora, Minas Gerais, Brazil. Electronic address: diogofelicio@yahoo.com.br. FAU - Teixeira, Luiza Faria AU - Teixeira LF AD - Department of Physical Therapy, Universidade do Vale do Sapucai, 320 Coronel Alfredo Custodio de Paula Avenue, 37550-000, Pouso Alegre, Minas Gerais, Brazil. Electronic address: luizaft@yahoo.com.br. FAU - de Jesus-Moraleida, Fabianna Resende AU - de Jesus-Moraleida FR AD - Department of Physical Therapy, Faculty of Medicine, Universidade Federal do Ceara, 949 Alexandre Baruna Street, 60430-160, Fortaleza, Ceara, Brazil. Electronic address: fabiannamoraleida@gmail.com. FAU - de Queiroz, Barbara Zille AU - de Queiroz BZ AD - Department of Physical Therapy, Postgraduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antonio Carlos Avenue, 31270-901, Belo Horizonte, Minas Gerais, Brazil. Electronic address: babzille@gmail.com. FAU - Pereira, Daniele Sirineu AU - Pereira DS AD - Department of Physical Therapy, Universidade Federal de Alfenas, 2600 Jovino Fernandes Sales Avenue, 31270-901, Alfenas, Minas Gerais, Brazil. Electronic address: daniele.sirineu@gmail.com. FAU - Pereira, Leani Souza Maximo AU - Pereira LSM AD - Department of Physical Therapy, Postgraduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antonio Carlos Avenue, 31270-901, Belo Horizonte, Minas Gerais, Brazil. Electronic address: leanismp.bh@terra.com.br. LA - eng PT - Journal Article DEP - 20170322 PL - Netherlands TA - Arch Gerontol Geriatr JT - Archives of gerontology and geriatrics JID - 8214379 RN - 0 (Antidepressive Agents) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Acute Disease MH - Aged MH - Antidepressive Agents/therapeutic use MH - Brain-Derived Neurotrophic Factor/*blood MH - Cross-Sectional Studies MH - Depression/blood MH - Female MH - Humans MH - Low Back Pain/*blood MH - Middle Aged OTO - NOTNLM OT - Brain-derived neurotrophic factor OT - Depressive symptoms OT - Low back pain OT - Older adults OT - Pain modulation EDAT- 2017/04/05 06:00 MHDA- 2018/01/11 06:00 CRDT- 2017/04/05 06:00 PHST- 2016/10/03 00:00 [received] PHST- 2017/03/08 00:00 [revised] PHST- 2017/03/17 00:00 [accepted] PHST- 2017/04/05 06:00 [pubmed] PHST- 2018/01/11 06:00 [medline] PHST- 2017/04/05 06:00 [entrez] AID - S0167-4943(17)30201-7 [pii] AID - 10.1016/j.archger.2017.03.005 [doi] PST - ppublish SO - Arch Gerontol Geriatr. 2017 Jul;71:75-82. doi: 10.1016/j.archger.2017.03.005. Epub 2017 Mar 22.