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Reduced cerebrospinal fluid concentration of interleukin-12/23 subunit p40 in patients with cognitive impairment

Johansson, Per LU ; Almqvist, E G ; Wallin, A ; Johansson, J-O ; Andreasson, U ; Blennow, K ; Zetterberg, H and Svensson, J (2017) In PLoS ONE 12(5).
Abstract
BackgroundThe role of inflammation in Alzheimer’s disease (AD) and other cognitive disorders is unclear. In a well-defined mono-center population, we measured cytokines and chemokines in paired serum and cerebrospinal fluid (CSF) samples. MethodsConsecutive patients with AD (n = 30), stable mild cognitive impairment (SMCI, n = 11), other dementias (n = 11), and healthy controls (n = 18) were included. None of the subjects was treated with glucocorticoids, cholinesterase inhibitors, or non-steroidal anti-inflammatory drugs. Serum and CSF concentrations of interleukin-6 (IL-6), IL-8, IL-12/23 p40, IL-15, IL-16, vascular endothelial growth factor-A (VEGF-A), and three chemokines were measured using a multiplex panel.ResultsAfter correction... (More)
BackgroundThe role of inflammation in Alzheimer’s disease (AD) and other cognitive disorders is unclear. In a well-defined mono-center population, we measured cytokines and chemokines in paired serum and cerebrospinal fluid (CSF) samples. MethodsConsecutive patients with AD (n = 30), stable mild cognitive impairment (SMCI, n = 11), other dementias (n = 11), and healthy controls (n = 18) were included. None of the subjects was treated with glucocorticoids, cholinesterase inhibitors, or non-steroidal anti-inflammatory drugs. Serum and CSF concentrations of interleukin-6 (IL-6), IL-8, IL-12/23 p40, IL-15, IL-16, vascular endothelial growth factor-A (VEGF-A), and three chemokines were measured using a multiplex panel.ResultsAfter correction for multiple comparisons, only CSF IL-12/23 p40 concentration differed significantly between the total patient group (n = 52) and controls (n = 18; p = 0.002). Further analyses showed that CSF IL-12/23 p40 concentration was decreased in all patient subgroups (AD, other dementias, and SMCI) compared to healthy controls (p < 0.01, p < 0.05, and p < 0.05, respectively). In the total study population (n = 70), CSF IL-12/23 p40 concentrations correlated positively with CSF concentrations of β-amyloid1-42 (Aβ1–42) and phosphorylated tau protein (P-tau) whereas in AD patients (n = 30), CSF IL-12/23 p40 only correlated positively with CSF P-Tau (r = 0.46, p = 0.01).ConclusionsMost cytokines and chemokines were similar in patients and controls, but CSF IL-12/23 subunit p40 concentration was decreased in patients with cognitive impairment, and correlated with markers of AD disease status. Further studies are needed to evaluate the role of CSF IL-12/23 p40 in other dementias and SMCI. (Less)
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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
PLoS ONE
volume
12
issue
5
article number
e0176760
publisher
Public Library of Science (PLoS)
external identifiers
  • scopus:85018951326
  • pmid:28464009
ISSN
1932-6203
DOI
10.1371/journal.pone.0176760
project
Endocrine and diagnostic aspects of cognitive impairment
language
English
LU publication?
no
id
8bddb4b9-d0d5-4e96-9d9e-9fac864283fa
date added to LUP
2017-05-04 17:28:35
date last changed
2022-04-24 23:41:34
@article{8bddb4b9-d0d5-4e96-9d9e-9fac864283fa,
  abstract     = {{BackgroundThe role of inflammation in Alzheimer’s disease (AD) and other cognitive disorders is unclear. In a well-defined mono-center population, we measured cytokines and chemokines in paired serum and cerebrospinal fluid (CSF) samples. MethodsConsecutive patients with AD (n = 30), stable mild cognitive impairment (SMCI, n = 11), other dementias (n = 11), and healthy controls (n = 18) were included. None of the subjects was treated with glucocorticoids, cholinesterase inhibitors, or non-steroidal anti-inflammatory drugs. Serum and CSF concentrations of interleukin-6 (IL-6), IL-8, IL-12/23 p40, IL-15, IL-16, vascular endothelial growth factor-A (VEGF-A), and three chemokines were measured using a multiplex panel.ResultsAfter correction for multiple comparisons, only CSF IL-12/23 p40 concentration differed significantly between the total patient group (n = 52) and controls (n = 18; p = 0.002). Further analyses showed that CSF IL-12/23 p40 concentration was decreased in all patient subgroups (AD, other dementias, and SMCI) compared to healthy controls (p &lt; 0.01, p &lt; 0.05, and p &lt; 0.05, respectively). In the total study population (n = 70), CSF IL-12/23 p40 concentrations correlated positively with CSF concentrations of β-amyloid1-42 (Aβ1–42) and phosphorylated tau protein (P-tau) whereas in AD patients (n = 30), CSF IL-12/23 p40 only correlated positively with CSF P-Tau (r = 0.46, p = 0.01).ConclusionsMost cytokines and chemokines were similar in patients and controls, but CSF IL-12/23 subunit p40 concentration was decreased in patients with cognitive impairment, and correlated with markers of AD disease status. Further studies are needed to evaluate the role of CSF IL-12/23 p40 in other dementias and SMCI.}},
  author       = {{Johansson, Per and Almqvist, E G and Wallin, A and Johansson, J-O and Andreasson, U and Blennow, K and Zetterberg, H and Svensson, J}},
  issn         = {{1932-6203}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{5}},
  publisher    = {{Public Library of Science (PLoS)}},
  series       = {{PLoS ONE}},
  title        = {{Reduced cerebrospinal fluid concentration of interleukin-12/23 subunit p40 in patients with cognitive impairment}},
  url          = {{http://dx.doi.org/10.1371/journal.pone.0176760}},
  doi          = {{10.1371/journal.pone.0176760}},
  volume       = {{12}},
  year         = {{2017}},
}