JAMA Network Open,
Journal Year:
2022,
Volume and Issue:
5(12), P. e2248593 - e2248593
Published: Dec. 27, 2022
Importance
Peripheral
neuropathies
are
common
conditions
and
can
result
in
numbness,
paresthesia,
motor
deficits,
pain.
There
is
increasing
evidence
for
the
use
of
biomarkers
as
clinical
indicators
presence,
severity,
prognosis
nerve
lesions;
however,
biomarker
identification
has
largely
been
focused
on
disorders
central
nervous
system,
less
known
about
their
role
peripheral
system.
Objective
To
assess
blood-based
concentrations
associated
with
involvement
patients
neuropathy
compared
control
participants.
Data
Sources
Ovid,
MEDLINE,
Embase,
CINAHL
were
searched
from
inception
to
September
23,
2021.
Study
Selection
Observational
studies
reporting
blood
diagnosed
included.
This
review
was
preregistered
PROSPERO
followed
Preferred
Reporting
Items
Systematic
Reviews
Meta-analyses
(
PRISMA
)
guideline.
abstracted
by
1
investigator
independently
reviewed
a
second.
Extraction
Synthesis
meta-analyzed
when
at
least
2
reported
same
comparable
methodology.
Fixed-effects
models
used
only
included;
random-effects
more
than
Main
Outcomes
Measures
The
outcome
interest
concentration
biomarkers.
Results
included
36
4414
participants,
including
2113
participants
2301
13
distinct
diagnoses.
Diabetic
most
diagnosis
(13
studies),
Charcot-Marie-Tooth
disease
(6
studies)
Guillain-Barre
syndrome
studies).
Overall,
16
different
evaluated.
neurofilament
light
chain,
S100B,
brain-derived
neurotrophic
factor,
neuron-specific
enolase.
Patients
demonstrated
significantly
higher
levels
chain
controls
(standardized
mean
difference
[SMD],
0.93
[95%
CI,
0.82
1.05];
P
<
.001).
no
significant
differences
S100B
(SMD,
1.10
−3.08
5.28];
=
.38),
factor
−0.52
−2.23
1.19];
.40),
or
enolase
−0.00
−1.99
1.98];
.10)
Conclusions
Relevance
findings
this
systematic
meta-analysis
support
measure
presence
neuronal
injury
neuropathy.
Journal of Neurotrauma,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Effective
team
science
requires
procedural
harmonization
for
rigor
and
reproducibility.
Multicenter
studies
across
experimental
modalities
(domains)
can
help
accelerate
translation.
The
Translational
Outcomes
Project
in
NeuroTrauma
(TOP-NT)
is
a
pre-clinical
traumatic
brain
injury
(TBI)
consortium
charged
with
establishing
validating
noninvasive
TBI
assessment
tools
through
science.
Here,
we
present
practical
approaches
of
research
five
centers
providing
needed
vocabulary
structure
to
achieve
centralized
data
organization
use.
This
includes
sharing
as
an
essential
step
that
enables
between
domains,
evaluating
reproducibility
sites,
performing
multimodal
analyses.
As
part
this
process,
TOP-NT
(1)
produced
library
TBI-relevant
standard
operating
procedures
coordinate
workflow,
(2)
aligned
481
clinical
common
elements
(CDEs),
(3)
generated
272
new
CDEs.
then
(4)
connected
diverse
types
validate
assessments
domains
allow
multivariable
phenotyping.
Lastly,
(5)
specified
technical
quality
controls
studies.
These
facilitate
science,
distinguish
wide
spectrum
from
variability,
apply
quality-controls,
ease
higher
level
uses
three
rat
models
four
sites.
Each
site
collects
primary
outcome
measures,
including
magnetic
resonance
imaging
(MRI)
protocols
blood
biomarkers
neuronal
glial
injury,
validated
by
histopathology
behavioral
outcomes.
Collected
are
organized
using
the
CDEs,
covering
surgical,
behavioral,
biomarker,
MRI,
quantitative
histopathological
methods.
We
report
curation
steps
suited
storage
Open
Data
Commons
repository,
allowing
unbiased
cross-site
analysis.
approach
leads
introducing
level,
syndromic
understanding
signatures.
authors
outline
semantic
structural
framework
suggesting
strategies
robust
multicenter
trials
improve
translatability
assessments.
Journal of Neurotrauma,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Traumatic
brain
injury
(TBI)
has
long
been
a
leading
cause
of
death
and
disability,
yet
research
failed
to
successfully
translate
findings
from
the
pre-clinical,
animal
setting
into
clinic.
One
factor
that
contributes
significantly
this
struggle
is
heterogeneity
observed
in
clinical
where
patients
present
with
injuries
varying
types,
severities,
comorbidities.
Modeling
highly
varied
population
laboratory
remains
challenging.
Given
feasibility
constraints,
individual
laboratories
often
focus
on
single
types
are
limited
an
abridged
set
outcome
measures.
Furthermore,
tend
use
different
or
methodologies
one
another,
making
it
difficult
compare
studies
identify
which
pre-clinical
may
be
best
suited
for
translation.
The
NINDS-funded
Translational
Outcomes
Project
Neurotrauma
(TOP-NT)
multi-site
consortium
designed
address
reproducibility,
rigor,
transparency
development
validation
clinically
relevant
biomarkers
TBI.
current
overview
article
provides
detailed
description
infrastructure
strategic
approach
undertaken
by
consortium.
We
outline
TOP-NT
strategy
three
goals:
(1)
selection
cross-center
biomarker
tools,
(2)
data
allow
sharing
reuse
following
findable,
accessible,
interoperable,
reusable
guidelines,
(3)
demonstration
feasibility,
conducting
multi-center,
trial
TBI
development.
synthesized
scientific
analysis
results
efforts
will
topic
future
articles.
Neurology,
Journal Year:
2025,
Volume and Issue:
104(5)
Published: Feb. 7, 2025
Previous
studies
on
sport-related
concussion
(SRC)
may
have
measured
brain
injury
blood-based
biomarker,
glial
fibrillary
acidic
protein
(GFAP),
either
before
or
after
its
peak,
potentially
underestimating
the
diagnostic
value.
The
primary
aim
of
this
study
was
to
evaluate
performance
serum
GFAP
at
24
hours
post-SRC.
Secondary
objectives
included
assessing
whether
timing
sample
collection
relative
an
Australian
football
match
(with
without
SRC)
affected
levels,
evaluating
if
combining
with
symptoms
improved
discrimination
SRC
compared
alone,
and
determining
utility
neurofilament
light
(NfL)
levels
In
a
prospective
cohort
study,
adult
male
female
players
Victorian
Amateur
Football
Association
(Melbourne,
Australia)
had
blood
sampled
around
postinjury/postmatch.
NfL
were
quantified
using
Simoa
assays,
area
under
curve
(AUC)
values
calculated
for
time
bins
16-24
hours,
24-32
36-52
hours.
Symptom
severity
assessed
Sport
Concussion
Assessment
Tool
5
(SCAT).
A
total
151
athletes
(median
age
22.5
years;
85%
male)
97
controls
24.3
86%
median
24.5
(interquartile
range
[IQR]
21.7-28.0;
min-max
16-51.5).
Time
postmatch
did
not
affect
in
controls;
however,
higher
correlated
shorter
post-SRC
(Spearman
r
=
-0.25,
95%
CI
-0.40
-0.09).
Median
concentrations
65.9
pg/mL
(IQR
49.1-81.3)
controls,
SRC,
124.6
86.7-190.7)
94.5
61.6-163.9)
59.9
49.1-94.7)
AUC
0.83
(95%
0.76-0.90)
0.72
0.64-0.80),
respectively.
Furthermore,
SCAT
enhanced
discriminatory
capability
alone
(AUC
increased
from
0.91
0.97;
z
2.48,
p
0.01).
Serum
limited
value
≤0.60).
following
potential
suspected
be
useful
objective
aid
diagnosis.
Brain,
Journal Year:
2022,
Volume and Issue:
145(6), P. 2064 - 2076
Published: April 4, 2022
Abstract
There
is
substantial
interest
in
the
potential
for
traumatic
brain
injury
to
result
progressive
neurological
deterioration.
While
blood
biomarkers
such
as
glial
fibrillary
acid
protein
(GFAP)
and
neurofilament
light
have
been
widely
explored
characterizing
acute
(TBI),
their
use
chronic
phase
limited.
Given
increasing
evidence
that
these
proteins
may
be
markers
of
ongoing
neurodegeneration
a
range
diseases,
we
examined
relationship
imaging
changes
functional
outcome
months
years
following
TBI.
Two-hundred
three
patients
were
recruited
two
separate
cohorts;
6
post-injury
(n
=
165);
>5
38;
12
whom
also
provided
data
∼8
post-TBI).
Subjects
underwent
biomarker
sampling
199)
MRI
172;
including
diffusion
tensor
imaging).
Data
from
patient
cohorts
compared
59
healthy
volunteers
21
non-brain
trauma
controls.
Mean
diffusivity
fractional
anisotropy
calculated
cortical
grey
matter,
deep
matter
whole
white
matter.
Accelerated
ageing
was
at
level
predicted
age
difference
defined
using
T1-weighted
images,
voxel-based
annualized
Jacobian
determinants
referenced
population
652
control
subjects.
Serum
concentrations
elevated
early
phase.
GFAP
values
within
normal
months,
many
showed
secondary
temporally
distinct
elevations
up
after
injury.
Biomarker
elevation
significantly
related
metrics
microstructural
on
imaging.
levels
volume
loss
years,
between
5
years.
Patients
who
worsened
functionally
higher
than
levels.
can
remain
TBI,
show
temporal
profiles.
These
correlate
closely
with
both
contemporaneous
quantitative
Neurofilament
predict
over
follow-up.
If
confirmed,
findings
suggest
late
time
points
could
used
identify
TBI
survivors
are
high
risk
damage.
Frontiers in Immunology,
Journal Year:
2022,
Volume and Issue:
13
Published: Dec. 15, 2022
Background
Coronavirus
disease
2019
(COVID-19)
caused
by
SARS-CoV-2
infection
is
associated
with
disorders
affecting
the
peripheral
and
central
nervous
system.
A
high
number
of
patients
develop
post-COVID-19
syndrome
persistence
a
large
spectrum
symptoms,
including
neurological,
beyond
4
weeks
after
infection.
Several
potential
mechanisms
in
acute
phase
have
been
hypothesized,
damage
blood-brain-barrier
(BBB).
We
tested
weather
markers
BBB
association
brain
injury
systemic
inflammation
may
help
identifying
blood
signature
for
severity
neurological
complications.
Methods
Blood
biomarkers
disruption
(MMP-9,
GFAP),
neuronal
(NFL)
(PPIA,
IL-10,
TNFα)
were
measured
two
COVID-19
patient
cohorts
(ICUCovid;
n=79)
complications
(NeuroCovid;
n=78),
control
groups
free
from
history,
healthy
subjects
(n=20)
amyotrophic
lateral
sclerosis
(ALS;
n=51).
Samples
collected
during
first
second
wave
pandemic
Lombardy,
Italy.
Evaluations
done
at
chronic
phases
Results
are
levels
similar
to
or
higher
than
ALS.
NeuroCovid
display
lower
cytokine
storm
inducer
PPIA
but
MMP-9
ICUCovid
patients.
There
was
evidence
different
temporal
dynamics
compared
IL-10
showing
highest
phase.
On
contrary,
patients,
dependency
long-term.
also
found
clear
NFL
GFAP
levels,
deceased
levels.
Discussion
The
overall
picture
points
an
increased
risk
disruption.
Our
observations
provide
hints
therapeutic
approaches
mitigating
reduce
dysfunction
Brain and Spine,
Journal Year:
2023,
Volume and Issue:
4, P. 102735 - 102735
Published: Dec. 14, 2023
A
blood-based
biomarker
(BBBM)
test
could
help
to
better
stratify
patients
with
traumatic
brain
injury
(TBI),
reduce
unnecessary
imaging,
detect
and
treat
secondary
insults,
predict
outcomes,
monitor
treatment
effects
quality
of
care.
What
evidence
is
available
for
clinical
applications
BBBMs
in
TBI
how
advance
this
field?
This
narrative
review
discusses
the
potential
core
TBI.
literature
search
PubMed,
Scopus,
ISI
Web
Knowledge
focused
on
articles
English
words
"traumatic
injury"
together
"blood
biomarkers",
"diagnostics",
"outcome
prediction",
"extracranial
"assay
method"
alone-,
or
combination.
Glial
fibrillary
acidic
protein
(GFAP)
combined
Ubiquitin
C-terminal
hydrolase-L1(UCH-L1)
has
received
FDA
clearance
aid
computed
tomography
(CT)-detection
lesions
mild
(m)
Application
S100B
led
reduction
head
CT
scans.
GFAP
may
also
magnetic
resonance
imaging
(MRI)
abnormalities
CT-negative
cases
Further,
UCH-L1,
S100B,
Neurofilament
light
(NF-L),
total
tau
showed
value
predicting
mortality
unfavourable
outcome.
Nevertheless,
biomarkers
have
less
role
outcome
prediction
mTBI.
serve
as
a
tool
multimodality
monitoring
neurointensive
care
unit.
Largescale
systematic
studies
are
required
explore
kinetics
their
use
multiple
groups.
Assay
development/cross
validation
should
generalizability
those
results
which
implicated
GFAP,
NF-L
most
promising
diagnostics