Alzheimer s Research & Therapy,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Oct. 19, 2024
Analysis
of
selected
research
cohorts
has
highlighted
an
association
between
plasma
neurofilament
light
(NfL)
protein
and
cross-sectional
cognitive
impairment
as
well
longitudinal
decline.
However,
the
findings
have
yielded
inconsistent
results
regarding
its
possible
application
in
clinical
practice.
Despite
potential
prognostic
significance,
role
NfL
daily
practice
with
unselected
patients
suffering
from
remains
largely
unexplored.
This
retrospective,
monocentric
study
enrolled
320
Alzheimer's
disease
([AD],
n
=
158),
dementia
Lewy
body
([DLB],
30),
frontotemporal
([FTD],
32),
non-neurodegenerative
diseases
([NND],
59)
or
subjective
decline
([SCD],
41).
Plasma
levels
were
measured
at
baseline
on
Simoa
platform.
AD,
DLB,
FTD
also
analyzed
altogether
a
'degenerative
conditions'
subgroup,
whereas
SCD
NND
grouped
'non-degenerative
subgroup.
We
assessed
relationship
performance,
including
global
cognition
six
specific
domains.
A
subset
239
had
follow-up
mini-mental
state
examinations
(MMSE)
up
to
60
months.
Models
adjusted
age,
education
level,
glomerular
filtration
rate
mass
index.
In
patients,
negatively
associated
(β=-1.28
(-1.81
;
-0.75)
P
<
0.001),
memory
(β=-1.48
(-2.38
-0.59),
language
(β=-1.72(-2.49
-0.95)
praxis
(β=-2.02
(-2.91
-1.13)
0.001)
executive
functions
(β=-0.81,
0.001).
Across
diagnosis,
all
but
specifically
AD
(respectively
β=-0.71(-1.21
-0.211),
0.005
β=-1.29
(-2.17
-0.42),
0.004),
attention
LBD
(β=-0.81(-1.16
-0.002),
0.03).
Linear
mixed-effects
models
showed
that
predicted
MMSE
population
(βPlasmaNfLxTime=-0.15
(-0.26
-0.04),
0.006),
neurodegenerative
condition
subgroup
(βPlasmaNfLxTime=-0.21
(-0.37
−
0.06),
0.007),
not
our
cohort,
was
faster
dementia,
which
corroborates
data
obtained
cohorts.
Yet,
predictive
accelerated
individuals
without
neurodegeneration,
suggesting
use
neurodegeneration-specific
biomarker.
Alzheimer s & Dementia,
Journal Year:
2024,
Volume and Issue:
20(11), P. 7989 - 8001
Published: Oct. 6, 2024
Abstract
INTRODUCTION
People
with
neurodegenerative
disorders
(ND)
frequently
face
diagnostic
delay
and
misdiagnosis.
We
investigated
blood
cerebrospinal
fluid
(CSF)
neurofilament
light
chain
(NfL)
to
distinguish
ND
from
primary
psychiatric
(PPD),
a
common
challenge
in
clinical
settings.
METHODS
Plasma
CSF
NfL
levels
were
measured
compared
between
groups,
adjusting
for
age,
sex,
weight.
RESULTS
A
total
of
337
participants
included:
136
ND,
77
PPD,
124
Controls.
was
2.5‐fold
elevated
PPD
had
strong
performance
(area
under
the
curve,
[AUC]:
0.86,
81%/85%
specificity/sensitivity)
that
comparable
(2‐fold
elevated,
AUC:
0.89,
95%/71%
specificity/sensitivity).
Diagnostic
especially
younger
people
(40–
<
60
years).
Additional
findings
cutoffs
optimized
sensitivity
specificity,
issues
important
future
translation.
CONCLUSIONS
This
study
adds
evidence
simple
blood‐based
biomarker
assist
as
screening
test
neurodegeneration
distinction
Highlights
significantly
higher
versus
PPD.
showed
performance,
NfL,
people,
where
challenges
are
greater.
Further
research
is
needed
on
analytical
reference
range
factors,
These
support
neurodegeneration.
Frontiers in Neurology,
Journal Year:
2024,
Volume and Issue:
15
Published: Jan. 30, 2024
Purpose
This
study
aimed
to
evaluate
the
use
of
serum
neurofilament
light
chain
(NfL)
and
glial
fibrillary
acidic
protein
(GFAP)
in
diagnosis
Alzheimer’s
disease
(AD)
differential
between
AD
mild
cognitive
impairment
(MCI).
Methods
From
September
2021
October
2022,
we
collected
venous
blood
from
patients
healthy
individuals
who
visited
our
hospital’s
Neurology
Department,
isolated
detect
NfL
GFAP
using
direct
chemiluminescence.
The
results
were
analyzed
one-way
analysis
variance
(ANOVA)
receiver
operating
characteristic
(ROC)
curves.
Results
Pairwise
comparisons
among
three
groups
showed
that
compared
with
health
checkup
(HC)
group,
increased
both
MCI
(
P
<
0.05,
0.01).
There
significant
differences
groups,
level
group
was
higher
p
0.01),
while
there
no
difference
NfL.
Both
levels
can
independently
diagnose
ROC
curve
had
a
diagnostic
efficacy,
an
area
under
(AUC)
0.928.
cut-off
values
two
markers
for
>
40.09
pg./mL
>31.40
pg./mL.
Sensitivity
specificity
59.6
76.2%,
respectively,
GFAP,
they
90.4
82.1%,
respectively.
combined
improved
efficiency
(AUC
=
0.931,
sensitivity
78.8%,
92.3%).
value
46.05
Conclusion
be
used
as
biomarkers
AD.
Serum
has
better
efficacy
distinguish
MCI.
A
improve
specificity.
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(2), P. e0318173 - e0318173
Published: Feb. 13, 2025
Alzheimer’s
disease
and
related
dementias
(ADRD)
present
a
significant
global
burden
that
is
only
expected
to
grow
in
the
future.
As
such,
there
need
develop
investigate
biomarkers
identify
individuals
at
risk
of
developing
ADRD
with
goal
providing
early
interventions
treatments.
Non-human
primate
(NHP)
models
neurodegeneration
opportunities
examine
such
preclinical
model
ability
control
several
confounding
factors
research
humans.
Baboons
naturally
ADRD-related
neuropathologies
humans
also
exhibit,
including
age-related
tau
amyloid
deposition.
However,
our
knowledge,
are
no
data
characterizing
fluid
relevant
or
baboons.
We
collected
plasma
(N
=
139)
cerebrospinal
(CSF,
N
44)
from
captive
baboons
ranging
age
3–19
years
old.
characterized
as
function
age,
sex,
rearing
status
using
bead-based
bioplex
human
assay
(Thermo
Fisher
Scientific’s
Neuroscience
18-Plex
Human
ProcartaPlex™
Panel).
Fluid
were
more
detectable
CSF
compared
plasma.
Additionally,
while
sex
did
not
significantly
predict
baboons,
predicted
levels
eight
12
detected
assay.
Linear
regressions
showed
total
tau,
pTau181,
NGF-beta,
GFAP,
NF-H,
S100B
higher
older
NGF-beta.
Lastly,
incidence
co-occurrence
multiple
measured
CSF,
but
These
show
exhibit
age-dependent
changes
used
for
clinical
screening,
diagnosis,
prognosis
ADRD,
thereby
further
demonstrating
value
aging
and,
possibly,
ADRD.
Neurological Research,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 6
Published: Feb. 28, 2025
Neurofilament
light
chain
(NfL)
has
emerged
as
a
promising
biomarker
for
several
neurological
diseases.
Therefore,
we
investigated
its
serum
levels
and
their
association
with
disease
characteristics,
including
duration,
severity,
medication
use
in
patients
restless
legs
syndrome
(RLS).
This
cross-sectional
prospective
study
included
71
RLS
70
healthy
controls.
were
characterized
based
on
use.
NfL
quantified
using
commercial
enzyme-linked
immunosorbent
assay
kits.
No
significant
differences
observed
between
controls
(p
>
0.05).
Furthermore,
the
not
significantly
associated
duration
or
severity
These
findings
do
support
of
RLS.
Further
large-scale
studies
are
needed
to
evaluate
role
Alzheimer s & Dementia,
Journal Year:
2024,
Volume and Issue:
20(9), P. 6423 - 6440
Published: July 30, 2024
Abstract
INTRODUCTION
Plasma
has
been
proposed
as
an
alternative
to
cerebrospinal
fluid
(CSF)
for
measuring
Alzheimer's
disease
(AD)
biomarkers,
but
no
studies
have
analyzed
in
detail
which
biofluid
is
more
informative
genetics
of
AD.
METHOD
Eleven
proteins
associated
with
AD
(α‐synuclein,
apolipoprotein
E
[apoE],
CLU,
GFAP,
GRN,
NfL,
NRGN,
SNAP‐25,
TREM2,
VILIP‐1,
YKL‐40)
were
assessed
plasma
(
n
=
2317)
and
CSF
3107).
Both
genome‐wide
association
study
(GWAS)
analyses
performed
each
protein,
followed
by
functional
annotation.
Additional
characterization
biomarker
included
calculation
correlations
predictive
power.
RESULTS
Eighteen
protein
quantitative
train
loci
(pQTLs)
10
16
pQTLs
9
identified.
shared
some
genetic
loci,
levels
between
tissues
correlated
weakly.
better
compared
plasma.
DISCUSSION
The
present
results
indicate
that
than
Highlights
identification
novel
trait
both
(CSF).
neurodegeneration‐related
(AD).
Neurofilament
light
(NfL),
triggering
receptor
expressed
on
myeloid
cells
2
(TREM2),
chitinase‐3‐like
1
(YKL‐40)
tend
show
relatively
strong
inter‐tissue
associations.
A
signal
the
APOE
)
region
was
identified,
eQTL
APOC1
.
Journal of Alzheimer s Disease,
Journal Year:
2024,
Volume and Issue:
101(3), P. 877 - 887
Published: Sept. 24, 2024
Background:
Predicting
which
patients
with
prodromal
AD
(pAD)
will
imminently
convert
to
dementia
may
be
paramount
in
a
memory
clinical
setting,
especially
potential
disease-modifying
therapies
on
the
horizon.
Objective:
To
explore
practical
tool
for
this
prediction,
combining
cognitive
tests
and
cerebrospinal
fluid
(CSF)
biomarkers.
Methods:
We
designed
longitudinal
prospective,
observational,
multicenter
study,
enrolling
pAD.
Inclusion
criteria
comprised
complaints,
Mini-Mental
State
Examination
(MMSE)
score
of≥22,
impairment
as
indicated
by
Free
Cued
Selective
Reminding
Test
Immediate
Recall
(FCSRT
+
IR)
and/or
TMA-93,
Clinical
Dementia
Rating-Global
Score
(CDR-GS)
of
0.5,
positive
CSF
Aβ42/Aβ40
ratio
(<0.095,
Euroimmun).
The
primary
outcome
was
conversion
(CDR-GS≥1)
within
first
year
follow-up,
referred
“short-term
conversion”.
A
multiple
regression
logistic
model
adopted
design
“Predict
Short-Term
Conversion”
(PSTC)
score.
Results:
Between
2020
2022,
83
were
recruited.
median
age
74,
49.4%
being
women.
Twenty-five
(30.1%)
classified
short-term
converters.
PSTC
incorporated
baseline
scores
MMSE
(
≤24
=
3,
>24
0)
FCSRT
IR
Total
≤14
4,
>14
0),
neurofilament
light
chains
(NfLs)
concentrations
(β=0.001299).
demonstrated
an
area
under
curve
0.78
(95%
CI:
0.67-0.90,
p
<
0.001),
cutoff
value
5.14
presenting
76%
sensitivity
80%
specificity.
Conclusions:
score,
comprising
two
relatively
brief
test
NfLs
concentrations,
could
useful
predicting
converters
among
diagnosed
Journal of Neurochemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Abstract
From
the
day
we
are
born,
nervous
system
is
subject
to
insult,
disease
and
degeneration.
Aberrant
phosphorylation
states
in
neurofilaments,
major
intermediate
filaments
of
neuronal
cytoskeleton,
accompany
mediate
many
pathological
processes
degenerative
disease.
Neuronal
damage,
degeneration
death
can
release
these
internal
components
extracellular
space
eventually
cerebrospinal
fluid
blood.
Sophisticated
assay
techniques
increasingly
able
detect
their
presence
at
very
low
levels,
increasing
utility
as
biomarkers
providing
insights
differential
diagnosis
for
earliest
stages
Although
a
variety
studies
focus
on
single
or
small
clusters
neurofilament
phosphorylated
epitopes,
this
review
offers
wider
perspective
landscape
heavy
subunit,
filament
component
both
ageing
image
Current Topics in Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
24(13), P. 1120 - 1133
Published: April 9, 2024
Biomarkers
are
the
most
significant
diagnosis
tools
tending
towards
unique
approaches
and
solutions
for
prevention
cure
of
Alzheimer's
Disease
(AD).
The
current
report
provides
a
clear
perception
concept
various
biomarkers
their
prominent
features
through
analysis
to
provide
possible
solution
inhibition
events
in
AD.
Scientists
around
world
truly
believe
that
crucial
hallmarks
can
serve
as
critical
early
diagnosis,
cure,
prevention,
well
future
medicine.
awareness
understanding
such
would
puzzled
mechanism
this
neuronal
disorder.
Some
argued
present
article
still
an
experimental
phase
they
need
undergo
specific
clinical
trials
before
be
considered
treatment.