Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 21, 2025
Although
there
is
some
evidence
of
an
association
between
Alzheimer's
disease
polygenic
risk
score
(AD
PRS)
and
cognitive
function,
limited
validations
have
been
performed
in
large
populations.
We
investigated
the
relationship
AD
PRS
function
UK
Biobank
over
276,000
participants
further
validated
Disease
Neuroimaging
Initiative
(ADNI)
sample.
developed
(excluded
APOE
variants)
middle
age
(age
ranged
39–72,
mean
57
years)
European
ancestries
by
LDpred2.
To
validate
internally
Biobank,
we
linearly
regressed
standardized
on
continuous
with
at
test,
sex,
genotyping
array,
first
10
principal
components
genotyping,
smoking,
education
years,
body
mass
index,
apolipoprotein
E
gene
ε4
(APOE4)
allele
dosages.
associations
externally,
ran
linear
mixed
effects
model
ADNI
sample
free
dementia
55–91,
73),
including
similar
covariates
as
fixed
participants'
IDs
random
effect.
Stratification
age,
APOE4
carrier
status,
status
(cognitively
normal
or
mild
impairment)
was
also
investigated.
Our
study
both
midlife
late-life
observational
cohorts.
not
all
measures
were
significantly
associated
PRS,
non-verbal
fluid
reasoning
(matrix
pattern
completion,
β
=
−
0.022,
P
0.003),
processing
speed
(such
symbol
digit
substitution,
0.017,
1.08E−05),
short-term
memory
attention
pairs
matching,
0.014,
1.66E−10),
reaction
time
(β
0.010,
1.19E−06)
inversely
increasing
Biobank.
Higher
likelihood
impairment
higher
individuals
assessment
scale
0.079,
0.02).
In
summary,
confirmed
that
poorer
a
risk,
suggested
potential
utility
identifying
those
who
may
be
for
decline.
New England Journal of Medicine,
Год журнала:
2024,
Номер
390(8), С. 712 - 722
Опубликована: Фев. 21, 2024
Biomarker
changes
that
occur
in
the
period
between
normal
cognition
and
diagnosis
of
sporadic
Alzheimer's
disease
have
not
been
extensively
investigated
longitudinal
studies.
Alzheimer s & Dementia,
Год журнала:
2021,
Номер
18(4), С. 824 - 857
Опубликована: Сен. 28, 2021
The
Alzheimer's
Disease
Neuroimaging
Initiative
(ADNI)
has
accumulated
15
years
of
clinical,
neuroimaging,
cognitive,
biofluid
biomarker
and
genetic
data,
samples
available
to
researchers,
resulting
in
more
than
3500
publications.
This
review
covers
studies
from
2018
2020.
Alzheimer s & Dementia,
Год журнала:
2022,
Номер
19(1), С. 307 - 317
Опубликована: Окт. 9, 2022
Abstract
Introduction
The
Alzheimer's
Disease
Neuroimaging
Initiative
(ADNI)
aims
to
validate
biomarkers
for
disease
(AD)
clinical
trials.
To
improve
generalizability,
ADNI4
enroll
50‐60%
of
its
new
participants
from
underrepresented
populations
(URPs)
using
biofluid
and
digital
technologies.
has
received
funding
the
National
Institute
on
Aging
beginning
September
2022.
Methods
will
recruit
URPs
community‐engaged
approaches.
An
online
portal
screen
20,000
participants,
4000
whom
(50‐60%
URPs)
be
tested
plasma
APOE
.
From
this,
500
undergo
in‐clinic
assessment
joining
ADNI3
rollover
participants.
Remaining
(∼3500)
longitudinal
cognitive
testing.
add
MRI
sequences
PET
tracers.
Project
1
optimize
in
AD
Results
Discussion
generalizability
results,
use
remote
blood
screening,
continue
providing
clinical,
biomarker,
autopsy
data
investigators.
International Journal of Molecular Sciences,
Год журнала:
2022,
Номер
23(5), С. 2486 - 2486
Опубликована: Фев. 24, 2022
Alzheimer's
Disease
(AD)
is
one
of
the
main
neurodegenerative
diseases
worldwide.
Unfortunately,
AD
shares
many
similarities
with
other
dementias
at
early
stages,
which
impedes
an
accurate
premortem
diagnosis.
Therefore,
it
urgent
to
find
biomarkers
allow
for
diagnosis
disease.
There
increasing
scientific
evidence
highlighting
between
eye
and
structures
CNS,
suggesting
that
knowledge
acquired
in
research
could
be
useful
AD.
For
example,
retina
optic
nerve
are
considered
part
central
nervous
system,
their
damage
can
result
retrograde
anterograde
axon
degeneration,
as
well
abnormal
protein
aggregation.
In
anterior
segment,
aqueous
humor
tear
film
may
comparable
cerebrospinal
fluid.
Both
fluids
enriched
molecules
potential
biomarkers.
Indeed,
pathophysiology
AD,
characterized
by
cerebral
deposits
amyloid-beta
(Aβ)
tau
protein,
also
present
eyes
patients,
besides
numerous
structural
functional
changes
observed
structure
eyes.
all
this
suggests
ocular
have
used
either
predictive
values
assessment
or
diagnostic
tools.
Neuropsychopharmacology,
Год журнала:
2023,
Номер
49(1), С. 3 - 9
Опубликована: Авг. 15, 2023
Abstract
In
contrast
to
most
fields
of
medicine,
progress
discover
and
develop
new
improved
psychiatric
drugs
has
been
slow
disappointing.
The
vast
majority
currently
prescribed
treat
schizophrenia,
mood
anxiety
disorders
are
arguably
no
more
effective
than
the
first
generation
introduced
well
over
50
years
ago.
With
only
a
few
exceptions
current
work
via
same
fundamental
mechanisms
action
as
first-generation
agents.
Here
we
describe
reasons
for
this
outline
number
areas
research
that
involve
greater
reliance
on
experimental
therapeutics
utilizing
recent
advances
in
neuroscience
better
understand
disease
biology.
We
exemplify
potential
impact
these
focus
with
several
examples
novel
agents
have
emerged
which
support
our
optimism
newer,
tolerated
agents,
horizon.
Together
existing
newer
could
offer
markedly
functional
outcomes
millions
people
still
disabled
by
disorders.
Alzheimer s & Dementia,
Год журнала:
2023,
Номер
20(1), С. 652 - 694
Опубликована: Сен. 12, 2023
The
Alzheimer's
Disease
Neuroimaging
Initiative
(ADNI)
aims
to
improve
disease
(AD)
clinical
trials.
Since
2006,
ADNI
has
shared
clinical,
neuroimaging,
and
cognitive
data,
biofluid
samples.
We
used
conventional
search
methods
identify
1459
publications
from
2021
2022
using
data/samples
reviewed
291
impactful
studies.
This
review
details
how
studies
improved
progression
understanding
trial
efficiency.
Advances
in
subject
selection,
detection
of
treatment
effects,
harmonization,
modeling
trials
plasma
biomarkers
like
phosphorylated
tau
showed
promise
for
use.
Biomarkers
amyloid
beta,
tau,
neurodegeneration,
inflammation,
others
were
prognostic
with
individualized
prediction
algorithms
available
online.
Studies
supported
the
cascade,
emphasized
importance
neuroinflammation,
detailed
widespread
heterogeneity
disease,
linked
genetic
vascular
risk,
co-pathologies,
sex,
resilience.
Biological
subtypes
consistently
observed.
Generalizability
results
is
limited
by
lack
cohort
diversity,
an
issue
ADNI-4
address
enrolling
a
diverse
cohort.
Frontiers in Aging Neuroscience,
Год журнала:
2023,
Номер
15
Опубликована: Апрель 18, 2023
Alzheimer’s
disease
(AD)
is
a
progressive,
neurodegenerative
disorder
that
affects
memory,
thinking,
behavior,
and
other
cognitive
functions.
Although
there
no
cure,
detecting
AD
early
important
for
the
development
of
therapeutic
plan
care
may
preserve
function
prevent
irreversible
damage.
Neuroimaging,
such
as
magnetic
resonance
imaging
(MRI),
computed
tomography
(CT),
positron
emission
(PET),
has
served
critical
tool
in
establishing
diagnostic
indicators
during
preclinical
stage.
However,
neuroimaging
technology
quickly
advances,
challenge
analyzing
interpreting
vast
amounts
brain
data.
Given
these
limitations,
great
interest
using
artificial
Intelligence
(AI)
to
assist
this
process.
AI
introduces
limitless
possibilities
future
diagnosis
AD,
yet
still
resistance
from
healthcare
community
incorporate
clinical
setting.
The
goal
review
answer
question
whether
should
be
used
conjunction
with
AD.
To
question,
possible
benefits
disadvantages
are
discussed.
main
advantages
its
potential
improve
accuracy,
efficiency
radiographic
data,
reduce
physician
burnout,
advance
precision
medicine.
include
generalization
data
shortage,
lack
vivo
gold
standard,
skepticism
medical
community,
bias,
concerns
over
patient
information,
privacy,
safety.
challenges
present
fundamental
must
addressed
when
time
comes,
it
would
unethical
not
use
if
can
health
outcome.
Alzheimer s & Dementia,
Год журнала:
2023,
Номер
20(1), С. 728 - 740
Опубликована: Ноя. 2, 2023
Abstract
There
is
emerging
evidence
that
amyloid
beta
protein
(Aβ)
and
tau‐related
lesions
in
the
retina
are
associated
with
Alzheimer's
disease
(AD).
Aβ
hyperphosphorylated
(p)‐tau
deposits
have
been
described
were
small
spots
visualized
by
vivo
imaging
techniques
as
well
degeneration
of
retina.
These
changes
correlate
brain
deposition
determined
histological
quantification,
positron
emission
tomography
(PET)
or
clinical
diagnosis
AD.
However,
literature
not
coherent
on
these
histopathological
findings.
One
important
reason
for
this
variability
methods
interpretation
findings
across
different
studies.
In
perspective,
we
indicate
critical
methodological
deviations
among
groups
suggest
a
roadmap
moving
forward
how
to
harmonize
(i)
histopathologic
examination
retinal
tissue;
(ii)
methods,
devices,
algorithms;
(iii)
inclusion/exclusion
criteria
studies
aiming
at
biomarker
validation.