Cells,
Journal Year:
2023,
Volume and Issue:
12(5), P. 736 - 736
Published: Feb. 24, 2023
Amyotrophic
lateral
sclerosis
(ALS)
is
a
fatal
neurodegenerative
disease
characterized
by
loss
of
upper
and
lower
motor
neurons,
resulting
in
progressive
weakness
all
voluntary
muscles
eventual
respiratory
failure.
Non-motor
symptoms,
such
as
cognitive
behavioral
changes,
frequently
occur
over
the
course
disease.
Considering
its
poor
prognosis
with
median
survival
time
2
to
4
years
limited
causal
treatment
options,
an
early
diagnosis
ALS
plays
essential
role.
In
past,
has
primarily
been
determined
clinical
findings
supported
electrophysiological
laboratory
measurements.
To
increase
diagnostic
accuracy,
reduce
delay,
optimize
stratification
trials
provide
quantitative
monitoring
progression
responsivity,
research
on
disease-specific
feasible
fluid
biomarkers,
neurofilaments,
intensely
pursued.
Advances
imaging
techniques
have
additionally
yielded
benefits.
Growing
perception
greater
availability
genetic
testing
facilitate
identification
pathogenic
ALS-related
gene
mutations,
predictive
access
novel
therapeutic
agents
addressing
disease-modified
therapies
before
advent
first
symptoms.
Lately,
personalized
prediction
models
proposed
offer
more
detailed
disclosure
for
patient.
this
review,
established
procedures
future
directions
diagnostics
are
summarized
serve
practical
guideline
improve
pathway
burdensome
Annals of Clinical and Translational Neurology,
Journal Year:
2020,
Volume and Issue:
7(12), P. 2508 - 2523
Published: Nov. 4, 2020
Abstract
Neuronal
injury
is
a
universal
event
that
occurs
in
disease
processes
affect
both
the
central
and
peripheral
nervous
systems.
A
blood
biomarker
linked
to
neuronal
would
provide
critical
measure
understand
treat
neurologic
diseases.
Neurofilament
light
chain
(NfL),
cytoskeletal
protein
expressed
only
neurons,
has
emerged
as
such
biomarker.
With
ability
quantify
damage
blood,
NfL
being
applied
wide
range
of
conditions
investigate
monitor
including
assessment
treatment
efficacy.
Blood
not
specific
for
one
its
release
can
also
be
induced
by
physiological
processes.
Longitudinal
studies
multiple
sclerosis,
traumatic
brain
injury,
stroke
show
accumulation
over
days
followed
elevated
levels
months.
Therefore,
it
may
hard
determine
with
single
measurement
when
peak
reached
are
normalized.
Nonetheless,
provides
new
diseases
overcoming
invasiveness
CSF
sampling
restricted
clinical
application.
In
this
review,
we
examine
use
biologic
test
disease.
Frontiers in Neuroscience,
Journal Year:
2021,
Volume and Issue:
15
Published: June 21, 2021
Amyotrophic
lateral
sclerosis
(ALS)
and
frontotemporal
dementia
(FTD)
are
two
related
currently
incurable
neurodegenerative
diseases.
ALS
is
characterized
by
degeneration
of
upper
lower
motor
neurons
causing
relentless
paralysis
voluntary
muscles,
whereas
in
FTD,
progressive
atrophy
the
frontal
temporal
lobes
brain
results
deterioration
cognitive
functions,
language,
personality,
behavior.
In
contrast
to
Alzheimer’s
disease
(AD),
FTD
still
lack
a
specific
neurochemical
biomarker
reflecting
neuropathology
ex
vivo
.
However,
past
10
years,
considerable
progress
has
been
made
characterization
neurofilament
light
chain
(NFL)
as
cerebrospinal
fluid
(CSF)
blood
for
both
NFL
structural
component
axonal
cytoskeleton
released
into
CSF
consequence
damage
or
degeneration,
thus
behaving
general
relatively
non-specific
marker
neuroaxonal
pathology.
ALS,
elevation
its
levels
exceeds
that
observed
most
other
neurological
diseases,
making
it
useful
discrimination
from
mimic
conditions
potentially
worthy
consideration
introduction
diagnostic
criteria.
Moreover,
correlates
with
progression
rate
negatively
associated
survival,
providing
prognostic
information.
patients,
elevated
compared
healthy
individuals
and,
lesser
extent,
patients
forms
dementia,
but
latter
difference
not
sufficient
enable
satisfying
performance
at
individual
patient
level.
also
several
measures
severity.
Due
technological
progress,
can
now
be
quantified
peripheral
blood,
where
present
much
concentrations
CSF,
allowing
less
invasive
sampling,
scalability,
longitudinal
measurements.
The
promoted
innovative
studies
demonstrating
kinetics
presymptomatic
harboring
gene
mutations
FTD.
Especially
generally
stable
over
time,
which,
together
their
correlation
rate,
makes
an
ideal
pharmacodynamic
therapeutic
trials.
this
review,
we
illustrate
significance
discuss
unsolved
issues
potential
future
developments.
Brain,
Journal Year:
2022,
Volume and Issue:
146(2), P. 421 - 437
Published: Sept. 8, 2022
The
advancing
validation
and
exploitation
of
CSF
blood
neurofilament
light
chain
protein
as
a
biomarker
neuroaxonal
damage
has
deeply
changed
the
current
diagnostic
prognostic
approach
to
neurological
diseases.
Further,
recent
studies
have
provided
evidence
potential
new
applications
this
also
in
non-primary
In
present
review
we
summarize
state
art,
future
perspectives,
but
limitations,
several
medical
fields,
including
intensive
care
medicine,
surgery,
internal
medicine
psychiatry.
particular,
is
associated
with
degree
impairment
outcome
patients
admitted
units
or
perioperative
phase
it
seems
be
highly
interconnected
cardiovascular
risk
factors.
Beyond
that,
interesting
insights
been
by
investigation
psychiatric
disorders
well
coronavirus
disease-19
pandemic
normal
ageing.
Altogether,
data
outline
multifaceted
applicability
ranging
from
critical
clinical
setting
development
precision
models
suggesting
strict
interplay
between
nervous
system
pathophysiology
health-illness
continuum.
Journal of Neurology,
Journal Year:
2022,
Volume and Issue:
269(8), P. 4270 - 4280
Published: March 14, 2022
Abstract
Introduction
Neurofilament
light
chain
(NfL)
is
becoming
increasingly
notable
in
neurological
diseases
including
AD,
and
it
has
been
suggested
as
a
new
peripherical
biomarker
of
neurodegeneration.
We
aimed
to
compare
plasma
NfL
levels
among
Subjective
Cognitive
Decline
(SCD),
Mild
Impairment
(MCI),
AD
patients
evaluate
relationships
between
CSF
biomarkers
neuropsychological
scores.
Materials
methods
enrolled
110
(34
SCD,
53
MCI,
23
AD),
who
underwent
clinical
evaluation,
APOE
genotyping,
analysis.
Ninety-one
at
least
one
amyloid
burden
(CSF
and/or
PET);
86
also
phosphorylated-tau
(p-tau)
total-tau
(t-tau)
measurement.
Patients
were
classified
A
+
if
they
presented
positive
or
A−
not.
Results
significantly
increased
MCI
compared
SCD
patients.
These
differences
depend
on
status,
e.g.,
had
lower
NfLs
than
but
comparable
with
A−.
Similarly,
higher
A−,
AD.
correlated
p-tau
all
No
correlations
found
subgroup.
In
negatively
memory
test
Conclusions
Plasma
might
be
promising
for
neurodegeneration
discriminate
cognitive
decline
due
from
other
conditions
causing
impairment
prodromal
stages.
Considering
tests
useful
peripheral
preclinical
phases
Molecular Neurodegeneration,
Journal Year:
2022,
Volume and Issue:
17(1)
Published: June 11, 2022
Genetic
mutations
underlying
familial
Alzheimer's
disease
(AD)
were
identified
decades
ago,
but
the
field
is
still
in
search
of
transformative
therapies
for
patients.
While
mouse
models
based
on
overexpression
mutated
transgenes
have
yielded
key
insights
mechanisms
disease,
those
are
subject
to
artifacts,
including
random
genetic
integration
transgene,
ectopic
expression
and
non-physiological
protein
levels.
The
engineering
novel
using
knock-in
approaches
addresses
some
limitations.
With
mounting
evidence
role
played
by
microglia
AD,
high-dimensional
phenotype
critical
refine
our
understanding
immune
response
brain.We
engineered
a
App
model
(AppSAA)
homologous
recombination
introduce
three
disease-causing
coding
(Swedish,
Arctic
Austrian)
gene.
Amyloid-β
pathology,
neurodegeneration,
glial
responses,
brain
metabolism
behavioral
phenotypes
characterized
heterozygous
homozygous
AppSAA
mice
at
different
ages
and/
or
biofluids.
Wild
type
littermate
used
as
experimental
controls.
We
situ
imaging
technologies
define
whole-brain
distribution
amyloid
plaques
compare
it
other
AD
human
pathology.
To
further
explore
microglial
relevant
we
isolated
with
fibrillar
Aβ
content
from
performed
transcriptomics
metabolomics
analyses
vivo
measure
energy
response.
Finally,
also
various
assays.Leveraging
multi-omics
approaches,
discovered
profound
alteration
diverse
lipids
metabolites
well
an
exacerbated
disease-associated
transcriptomic
high
intracellular
content.
recapitulates
pathological
features
such
progressive
accumulation
parenchymal
vascular
deposits,
altered
astroglial
responses
elevation
CSF
markers
neurodegeneration.
Those
observations
associated
increased
TSPO
FDG-PET
signals
hyperactivity
animals
aged.Our
findings
demonstrate
that
lipid
dyshomeostasis
consistent
lysosomal
dysfunction
foam
cell
immuno-metabolic
perturbations,
opening
new
avenues
investigate
metabolic
pathways
play
responding
AD-relevant
pathogenesis.
in-depth
characterization
hallmarks
this
open-access
should
serve
resource
scientific
community
disease-relevant
biology.