Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients

Brain-derived neurotrophic factor (BDNF) is associated with neuroplasticity and synaptic strength, and is decreased in conditions associated with chronic stress. Nevertheless, BDNF has not yet been investigated in psoriasis, a chronic inflammatory systemic disease that is exacerbated by stress. Ther...

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Main Authors: A.R. Brunoni, P.A. Lotufo, C. Sabbag, A.C. Goulart, I.S. Santos, I.M. Benseñor
Format: Article
Language:English
Published: Associação Brasileira de Divulgação Científica 2015-08-01
Series:Brazilian Journal of Medical and Biological Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800711&lng=en&tlng=en
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author A.R. Brunoni
P.A. Lotufo
C. Sabbag
A.C. Goulart
I.S. Santos
I.M. Benseñor
author_facet A.R. Brunoni
P.A. Lotufo
C. Sabbag
A.C. Goulart
I.S. Santos
I.M. Benseñor
author_sort A.R. Brunoni
collection DOAJ
description Brain-derived neurotrophic factor (BDNF) is associated with neuroplasticity and synaptic strength, and is decreased in conditions associated with chronic stress. Nevertheless, BDNF has not yet been investigated in psoriasis, a chronic inflammatory systemic disease that is exacerbated by stress. Therefore, our aim was to determine BDNF plasma levels in psoriasis patients and healthy controls. Adult patients (n=94) presenting with psoriasis for at least 1 year were enrolled, and age- and gender-matched with healthy controls (n=307) from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Participants had neither a previous history of coronary artery disease nor current episode of major depression. BDNF plasma levels were determined using the Promega ELISA kit. A general linear model was used to compare BDNF levels in psoriasis patients and controls, with age, gender, systolic blood pressure, serum fasting glucose, blood lipid levels, triglycerides, smoking status, and body mass index examined. After adjusting for clinical and demographic variables, significantly decreased BNDF plasma levels were observed in psoriasis patients (P=0.01) (estimated marginal means of 3922 pg/mL; 95%CI=2660-5135) compared with controls (5788 pg/mL; 95%CI=5185-6442). Similar BDNF levels were found in both mild and severe cases of psoriasis. Our finding, that BDNF is decreased in psoriasis, supports the concept of a brain-skin connection in psoriasis. Further studies should determine if BDNF is increased after specific psoriasis treatments, and associated with different disease stages.
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spelling doaj.art-7d4125063792488aa0b485781ade1a242022-12-21T21:14:28ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2015-08-0148871171410.1590/1414-431X20154574S0100-879X2015000800711Decreased brain-derived neurotrophic factor plasma levels in psoriasis patientsA.R. BrunoniP.A. LotufoC. SabbagA.C. GoulartI.S. SantosI.M. BenseñorBrain-derived neurotrophic factor (BDNF) is associated with neuroplasticity and synaptic strength, and is decreased in conditions associated with chronic stress. Nevertheless, BDNF has not yet been investigated in psoriasis, a chronic inflammatory systemic disease that is exacerbated by stress. Therefore, our aim was to determine BDNF plasma levels in psoriasis patients and healthy controls. Adult patients (n=94) presenting with psoriasis for at least 1 year were enrolled, and age- and gender-matched with healthy controls (n=307) from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Participants had neither a previous history of coronary artery disease nor current episode of major depression. BDNF plasma levels were determined using the Promega ELISA kit. A general linear model was used to compare BDNF levels in psoriasis patients and controls, with age, gender, systolic blood pressure, serum fasting glucose, blood lipid levels, triglycerides, smoking status, and body mass index examined. After adjusting for clinical and demographic variables, significantly decreased BNDF plasma levels were observed in psoriasis patients (P=0.01) (estimated marginal means of 3922 pg/mL; 95%CI=2660-5135) compared with controls (5788 pg/mL; 95%CI=5185-6442). Similar BDNF levels were found in both mild and severe cases of psoriasis. Our finding, that BDNF is decreased in psoriasis, supports the concept of a brain-skin connection in psoriasis. Further studies should determine if BDNF is increased after specific psoriasis treatments, and associated with different disease stages.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800711&lng=en&tlng=enBrain derived neurotrophic factorPsoriasisNeurotrophinsPsychological stressCase-control study
spellingShingle A.R. Brunoni
P.A. Lotufo
C. Sabbag
A.C. Goulart
I.S. Santos
I.M. Benseñor
Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
Brazilian Journal of Medical and Biological Research
Brain derived neurotrophic factor
Psoriasis
Neurotrophins
Psychological stress
Case-control study
title Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
title_full Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
title_fullStr Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
title_full_unstemmed Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
title_short Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
title_sort decreased brain derived neurotrophic factor plasma levels in psoriasis patients
topic Brain derived neurotrophic factor
Psoriasis
Neurotrophins
Psychological stress
Case-control study
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800711&lng=en&tlng=en
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