Alzheimer s & Dementia,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 13, 2024
Abstract
INTRODUCTION
Vascular
cognitive
impairment
(VCI)
is
highly
heterogeneous,
with
unclear
pathogenesis.
Individuals
vascular
risk
factors
(VRF),
cerebral
small
vessel
disease
(CSVD),
and
stroke
are
all
at
of
developing
VCI.
To
address
the
growing
challenges
posed
by
VCI,
“Vascular,
Imaging
Cognition
Association
China”
(VICA)
was
established.
METHODS
VICA
aims
to
recruit
10,000
participants,
including
2000
VRF,
3000
CSVD,
5000
patients,
form
a
nationwide
multicenter
cohort.
The
study
integrates
clinical,
neuroimaging,
multi‐omics
data
better
understand
VCI
heterogeneity,
improve
prediction,
ensure
timely
diagnosis.
RESULTS
has
screened
2045
eligible
VRF
participants
from
six
communities
in
Wuhan,
Shanghai,
Taizhou,
along
602
CSVD
1269
patients
135
hospitals
nationwide.
Baseline
enrollment
follow‐up
work
still
ongoing.
DISCUSSION
Establishing
high‐quality
longitudinal
cohort
crucial
for
understanding
pathogenesis
novel
markers
early
screening
Highlights
Establish
large‐scale
prospective
comprising
focusing
on
high‐risk
population
China.
three‐tier
medical
network,
make
full
use
resources,
achieve
extensive
patients.
Utilize
multimodal
imaging
biomarkers
lay
foundation
constructing
more‐precise
models.
Introduce
eye
movement
gait
analysis
as
new
methods
assessing
function.
Use
positron
emission
tomography
further
investigate
interaction
between
neurodegeneration.
Alzheimer s & Dementia,
Год журнала:
2023,
Номер
20(2), С. 1089 - 1101
Опубликована: Окт. 24, 2023
Abstract
INTRODUCTION
Whether
the
integration
of
eye‐tracking,
gait,
and
corresponding
dual‐task
analysis
can
distinguish
cognitive
impairment
(CI)
patients
from
controls
remains
unclear.
METHODS
One
thousand
four
hundred
eighty‐one
participants,
including
724
CI
757
controls,
were
enrolled
in
this
study.
Eye
movement
combined
with
patterns,
measured.
The
LightGBM
machine
learning
models
constructed.
RESULTS
A
total
105
gait
eye‐tracking
features
extracted.
Forty‐six
parameters,
32
14
features,
showed
significant
differences
between
two
groups
(
P
<
0.05).
Of
these,
Gait_3Back‐TurnTime
Dual‐task
cost‐TurnTime
patterns
significantly
correlated
plasma
phosphorylated
tau
181
(p‐tau181)
level.
model
based
on
smooth
pursuit,
prosaccade,
anti‐saccade
achieved
best
area
under
receiver
operating
characteristics
curve
(AUC)
0.987
for
detection,
while
p‐tau181,
discriminated
mild
an
AUC
0.824.
DISCUSSION
Combining
is
feasible
detection
CI.
Highlights
This
first
study
to
report
efficiency
integrated
parameters
a
large
cohort.
We
identified
46
associated
CI,
181.
constructed
anti‐saccade,
achieving
detection.
Frontiers in Aging Neuroscience,
Год журнала:
2025,
Номер
16
Опубликована: Янв. 7, 2025
Cerebral
small
vessel
disease
(CSVD)
is
a
chronic
systemic
degenerative
affecting
blood
vessels
in
the
brain,
leading
to
cognitive
impairments.
Transcranial
direct
current
stimulation
(tDCS),
non-invasive
brain
technique
that
applies
low
electrical
currents
scalp,
shows
promise
treating
and
movement
disorders.
However,
further
clinical
evaluation
required
assess
long-term
effects
of
tDCS
on
neuroplasticity
gait
patients
with
CSVD.
We
investigated
long-term,
repeated
local
perfusion,
network
connectivity,
cognition,
CSVD
disorders
(CSVD-GD).
This
prospective,
single-blind,
multicenter,
randomized
controlled
study
enrolled
66
CSVD-GD,
categorized
into
Sham
groups.
Imaging
characteristic
data
were
collected
over
three
periods
using
magnetic
resonance
imaging
analyzer,
along
neuropsychological
assessments.
Among
156
volunteers
participated
this
study,
60
completing
entire
process.
Compared
group,
group
exhibited
more
pronounced
increase
cerebral
flow
dural
cerebrospinal
fluid
ratio
regions
such
as
orbitofrontal
cortex
cingulate
gyrus
(P
<
0.05,
FDR
corrected),
significantly
greater
improvements
speed
stride
length.
Tolerance
was
good,
no
difference
adverse
reactions
between
groups,
except
for
scalp
burning
sensation
reported
during
1st
week
(24.24%
6.06%
respectively;
P
=
0.003).
Long-term
effective
safe
improving
cognition
Brain Injury,
Год журнала:
2025,
Номер
unknown, С. 1 - 17
Опубликована: Апрель 3, 2025
Part
IV
concludes
this
four-part
review
of
'What
Traditional
Neuropsychological
Assessment
Got
Wrong
About
Mild
Traumatic
Brain
Injury,'
with
a
focus
on
clinical
applications
and
future
directions.
These
reviews
have
highlighted
the
limitations
traditional
neuropsychological
assessment
methods,
particularly
in
evaluation
patient
mild
traumatic
brain
injury
(mTBI),
especially
within
context
all
21st
Century
advances
neuroimaging,
quantification
network
neuroscience.
How
advanced
neuroimaging
technology
contemporary
neuroscience
can
be
applied
to
assessing
mTBI
at
time
along
are
reviewed.
The
current
status
computerized
test
(CNT)
development
is
reviewed
as
it
applies
assessment.
Likewise,
how
various
types
virtual
reality
(VR),
artificial
intelligence
(AI),
wearable
sensors,
markerless
gaming
could
enhance
CNT
tool
box
some
aspirational
statements
about
improvements
novel
methods
developed
integrated
technologies
tailored
meet
needs
patient.
The Journal of Prevention of Alzheimer s Disease,
Год журнала:
2025,
Номер
unknown, С. 100080 - 100080
Опубликована: Фев. 1, 2025
This
study
assessed
the
effectiveness
of
three
digital
screening
tools
in
detecting
cognitive
impairment
(CI)
a
large
cohort
community-dwelling
elderly
individuals
and
investigated
relationship
between
key
features
plasma
p-tau217
levels.
community-based
included
1,083
participants
aged
65
years
or
older,
with
337
diagnosed
CI
746
classified
as
normal
controls
(NC).
We
utilized
two
approaches:
traditional
methods
(AD8,
MMSE
scale,
APOE
genotyping)
(drawing,
gait,
eye
tracking).
LightGBM-based
machine
learning
models
were
developed
for
each
tool
their
combination,
performance
was
evaluated.
The
correlation
levels
analyzed
well.
A
total
21
drawing,
71
35
eye-tracking
parameters
showed
significant
differences
groups
(all
p
<
0.05).
area
under
curve
(AUC)
values
distinguishing
from
NC
0.860,
0.848,
0.895,
respectively.
combination
drawing
achieved
highest
classification
effectiveness,
an
AUC
0.958,
accuracy,
sensitivity,
specificity
all
exceeded
85%.
fusion
model
0.928
mild
(MCI)
NC.
Additionally,
several
(including
ten
one
parameters)
significantly
correlated
|r|
>
0.3,
0.001).
Digital
offer
objective,
accurate,
efficient
alternatives
community
settings,
providing
best
(AUC
=
0.958).
Biomedicines,
Год журнала:
2025,
Номер
13(3), С. 738 - 738
Опубликована: Март 18, 2025
Background:
Mild
Cognitive
Impairment
(MCI)
is
a
critical
transitional
phase
between
normal
aging
and
dementia,
early
detection
essential
to
mitigate
cognitive
decline.
Traditional
assessment
tools,
such
as
the
Mini-Mental
State
Examination
(MMSE)
Montreal
Assessment
(MoCA),
exhibit
limitations
in
feasibility,
which
potentially
partially
affects
results
for
early-stage
MCI
detection.
This
study
developed
tested
supportive
system
auxiliary
identification,
leveraging
eye-tracking
features
convolutional
neural
network
(CNN)
analysis.
Methods:
The
employed
technology
conjunction
with
machine
learning
build
multimodal
identification
model.
Four
eye
movement
tasks
two
tests
were
administered
128
participants
(40
patients,
57
elderly
controls,
31
young
adults
reference).
We
extracted
8
behavioral
assess
their
contributions
classification
accuracy
using
CNN
Eye
only,
combined
models
respectively,
find
out
most
effective
approach
identification.
Results:
Overall,
model
achieved
higher
discrimination
than
single
feature
sets
alone.
Specifically,
model’s
ability
differentiate
from
healthy
individuals,
including
adults,
reached
an
average
of
74.62%.
For
distinguishing
averaged
66.50%.
Conclusions:
Results
show
that
significantly
outperforms
single-feature
identifying
MCI,
highlighting
potential
These
findings
suggest
integrating
data
can
enhance
effectiveness
providing
novel
pathway
community-based
efforts.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 26, 2025
Previous
studies
on
gait
changes
in
mild
cognitive
impairment
(MCI)
are
inconsistent.
Alzheimer's
disease
(AD)
plasma
biomarkers,
amyloid
beta
(Aβ)
and
phosphorylated-tau
(p-tau),
relevant
to
disorders.
This
study
explores
MCI
the
relationship
between
performance
AD
biomarkers.
231
participants
were
recruited
stratified
based
p-tau181
levels
into:
low
with
normal
cognition
(lT-NC),
(lT-MCI),
high
(hT-MCI).
The
same
cohort
was
subsequently
by
Aβ42/Aβ40
(hA-NC),
(hA-MCI),
(lA-MCI).
Demographic,
data
compared
across
groups.
hT-MCI
lA-MCI
groups
older
than
other
Significant
differences
stride
length
found
lT-NC
hT-MCI,
lT-MCI
but
not
lT-MCI.
Neuropsychological
assessments
revealed
poorer
relative
lT-NC,
while
global
function
comparable
No
such
associations
observed
levels.
Decreased
length,
which
is
generally
considered
be
indicative
of
gait,
significantly
associated
elevated
independent
status.
These
findings
highlight
potential
as
a
biomarker
for
tau-related
motor
dysfunction
MCI.