Identifying brain degeneration patterns in early-stage Parkinson’s disease: a multimodal MRI study
Zihao Zhu,
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Jiaqi Wen,
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Xiaojie Duanmu
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et al.
npj Parkinson s Disease,
Journal Year:
2025,
Volume and Issue:
11(1)
Published: April 25, 2025
Parkinson's
disease
(PD)
is
a
highly
heterogeneous
neurodegenerative
disorder.
This
study
aimed
to
identify
different
patterns
of
early
brain
degeneration
in
PD
patients
and
investigate
their
clinical
relevance.
179
early-stage
115
healthy
controls
were
included.
We
assessed
cortical
morphology,
white
matter
microstructure,
subcortical
iron
metabolism
using
multimodal
magnetic
resonance
imaging
employed
clustering
techniques
subtypes.
Two
subtypes
identified:
the
early-deterioration
subtype,
characterized
by
fronto-temporal
atrophy,
parietal
thickening,
widespread
reductions
fractional
anisotropy
(FA)
values,
increased
content,
which
exhibited
more
severe
baseline
symptoms
trend
faster
memory
decline;
early-compensatory
rostral
middle
frontal
parietal-occipital
FA
normal
milder
initially
but
experienced
progression
both
motor
non-motor
symptoms.
These
discoveries
provided
new
insights
into
heterogeneity
facilitated
exploration
mechanisms.
Language: Английский
An update on immune-based alpha-synuclein trials in Parkinson’s disease
Maha Alfaidi,
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Roger A. Barker,
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Wei‐Li Kuan
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et al.
Journal of Neurology,
Journal Year:
2024,
Volume and Issue:
272(1)
Published: Dec. 12, 2024
Abstract
Parkinson’s
disease
(PD)
is
a
prevalent,
chronic
neurodegenerative
disorder
characterised
by
the
progressive
loss
of
dopaminergic
neurons
in
substantia
nigra
and
other
brain
regions.
The
aggregation
alpha-synuclein
(α-syn)
into
Lewy
bodies
neurites
key
pathological
feature
associated
with
PD
its
progression.
Many
therapeutic
studies
aim
to
target
these
aggregated
forms
α-syn
potentially
slow
down
or
stop
progression
PD.
This
review
provides
comprehensive
analysis
recent
clinical
trials
involving
vaccines
monoclonal
antibodies
targeting
α-syn.
Specifically,
UB-312,
AFFITOPE
PD01A,
PD03A
ACI-7104.056
are
designed
provoke
an
immune
response
against
(active
immunisation),
while
Prasinezumab
Cinpanemab,
MEDI1341
Lu
AF82422
focus
on
directly
aggregates
(passive
immunisation).
Despite
some
promising
results,
challenges
such
as
variable
efficacy
trial
discontinuations
persist.
Future
research
must
address
advance
disease-modifying
therapies
for
around
this
target.
Language: Английский