Expert Review of Neurotherapeutics,
Journal Year:
2023,
Volume and Issue:
23(2), P. 107 - 122
Published: Feb. 1, 2023
Although
there
has
been
substantial
progress
in
research
and
innovations
symptomatic
treatments,
similar
success
not
achieved
disease-modifying
therapy
(DMT)
for
Parkinson's
disease
(PD).
Considering
the
enormous
motor,
psychosocial
financial
burden
associated
with
PD,
safe
effective
DMT
is
of
paramount
importance.One
reasons
lack
PD
poor
or
inappropriate
design
clinical
trials.
In
first
part
article,
authors
focus
on
plausible
why
previous
trials
have
failed
latter
part,
they
provide
their
perspectives
future
trials.There
are
several
potential
failed,
including
broad
etiopathogenic
heterogeneity
definition
documentation
target
engagement,
appropriate
biomarkers
outcome
measures,
short
duration
follow-up.
To
address
these
deficiencies,
may
consider-
(i)
a
more
customized
approach
to
select
most
suitable
participants
therapeutic
approaches,
(ii)
explore
combination
therapies
that
would
multiple
pathogenetic
mechanisms,
(iii)
moving
beyond
targeting
only
motor
symptoms
also
assessing
non-motor
features
well-designed
longitudinal
studies.
Expert Review of Neurotherapeutics,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 21
Published: Jan. 7, 2025
Introduction
Cognitive
impairment
in
Parkinson's
disease
(PD)
substantially
affects
patient
outcomes,
function,
and
quality
of
life.
PD-related
cognitive
dysfunction
is
often
heterogeneous
clinical
presentation
rates
progression.
As
changes
occur
many
people
with
PD,
it
essential
to
evaluate
cognition,
provide
education,
implement
management
strategies
for
symptoms.
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
16(7), P. 849 - 849
Published: June 22, 2024
The
state
of
well-being
and
health
our
body
is
regulated
by
the
fine
osmotic
biochemical
balance
established
between
cells
different
tissues,
organs,
systems.
Specific
districts
human
are
defined,
kept
in
correct
functioning,
and,
therefore,
protected
from
exogenous
or
endogenous
insults
both
mechanical,
physical,
biological
nature
presence
barrier
In
addition
to
placental
barrier,
which
even
acts
as
a
linker
two
organisms,
mother
fetus,
all
barriers,
including
blood-brain
(BBB),
blood-retinal
blood-nerve
blood-lymph
blood-cerebrospinal
fluid
operate
maintain
physiological
homeostasis
within
tissues
organs.
From
pharmaceutical
point
view,
most
challenging
undoubtedly
BBB,
since
its
notably
complicates
treatment
brain
disorders.
BBB
action
can
impair
delivery
chemical
drugs
biopharmaceuticals
into
brain,
reducing
their
therapeutic
efficacy
and/or
increasing
unwanted
bioaccumulation
surrounding
healthy
tissues.
Recent
nanotechnological
innovation
provides
advanced
biomaterials
ad
hoc
customized
engineering
functionalization
methods
able
assist
brain-targeted
drug
delivery.
this
context,
lipid
nanocarriers,
synthetic
(liposomes,
solid
nanoparticles,
nanoemulsions,
nanostructured
carriers,
niosomes,
proniosomes,
cubosomes)
cell-derived
ones
(extracellular
vesicles
cell
membrane-derived
nanocarriers),
considered
one
successful
systems
due
reasonable
biocompatibility
ability
cross
BBB.
This
review
aims
provide
complete
up-to-date
view
on
varied
whether
FDA-approved,
involved
clinical
trials,
used
vitro
vivo
studies,
for
inflammatory,
cancerous,
infectious
diseases.
Pharmaceutics,
Journal Year:
2022,
Volume and Issue:
14(12), P. 2607 - 2607
Published: Nov. 26, 2022
Magnetic
resonance-guided
focused
ultrasound
(MRgFUS),
in
conjunction
with
circulating
microbubbles,
is
an
emerging
technology
that
can
transiently
enhance
the
permeability
of
blood-brain
barrier
(BBB)
locally
and
non-invasively
to
facilitate
targeted
drug
delivery
brain.
In
this
clinical
trial,
feasibility
safety
BBB
modulation
putamen
were
evaluated
for
biweekly
therapeutic
agent
patients
Parkinson's
disease.
The
performance
MRgFUS
system's
cavitation
feedback
controller
active
power
throughout
exposures
was
examined.
unilaterally
by
ExAblate
Neuro
system
operating
at
220
kHz.
Definity
microbubbles
infused
via
a
saline
bag
gravity
drip
rate
4
µL/kg
per
5
min.
A
emissions-based
employed
modulate
acoustic
automatically
according
prescribed
target
dose
levels.
opening
measured
Gadolinium
(Gd)-enhanced
T1-weighted
MR
imaging,
presence
potential
micro-hemorrhages
induced
assessed
T2*-weighted
imaging.
total
12
treatment
sessions
carried
out
across
four
patients,
levels
ranging
from
0.20-0.40.
elevated
successfully
all
treatments,
14%
±
6%
mean
increase
Gd-enhanced
MRI
signal
intensity
relative
untreated
contralateral
side.
No
indications
red
blood
cell
extravasations
observed
on
imaging
scans
acquired
one
day
following
each
session.
effective
modulating
ensure
enhancement
while
avoiding
micro-hemorrhages,
however,
further
technical
advancements
are
warranted
improve
its
use
wide
variety
brain
diseases.
npj Parkinson s Disease,
Journal Year:
2024,
Volume and Issue:
10(1)
Published: Oct. 23, 2024
In
this
review,
we
summarize
preclinical
and
clinical
trials
investigating
innovative
neuromodulatory
approaches
for
Parkinson
disease
(PD)
motor
symptom
management.
We
highlight
the
following
technologies:
temporal
interference,
nanoparticles
drug
delivery,
blood-brain
barrier
opening,
gene
therapy,
optogenetics,
upconversion
nanoparticles,
magnetothermal
magnetoelectric
ultrasound-responsive
designer
receptors
exclusively
activated
by
drugs.
These
studies
establish
basis
novel
promising
treatments
PD
symptoms.
Neurobiology of Disease,
Journal Year:
2022,
Volume and Issue:
175, P. 105925 - 105925
Published: Nov. 11, 2022
As
the
ability
to
capture
single-cell
expression
profiles
has
grown
in
recent
years,
neuroscientists
studying
a
wide
gamut
of
brain
regions
have
discovered
remarkable
heterogeneity
within
seemingly
related
populations
(Saunders
et
al.,
2018a;
Zeisel
2015).
These
"molecular
subtypes"
been
demonstrated
even
nuclei
expressing
same
neurotransmitter
Poulin
2020;
Ren
2019;
Okaty
2020).
Recently,
dopamine
(DA)
neurons
substantia
nigra
pars
compacta
(SNc)
and
adjacent
ventral
tegmental
area
(VTA)
revealed
be
diverse
not
only
when
comparing
between
these
two
dopaminergic
nuclei,
but
them,
with
distribution
identified
subtypes
often
agnostic
traditional
neuroanatomical
boundaries
Hook
2018;
Kramer
La
Manno
2016;
2014;
Tiklova
2018).
Such
molecularly
defined
subpopulations
subject
several
studies.
Investigations
ultimately
unveiled
many
distinctive
properties
across
domains,
such
as
their
axonal
projections
functional
(Poulin
Wu
Pereira
Luppi
2021;
Evans
2017;
key
differences
begun
corroborate
biological
relevance
DA
neuron
taxonomic
schemes.
We
hypothesize
that
putative
molecular
subtypes,
circuits,
could
shed
light
on
variety
dopamine-related
symptoms
observed
diseases
including
depression,
chronic
pain,
addiction,
Parkinson's
Disease.
While
it
is
difficult
reconcile
how
single
can
involved
so
unrelated
phenotypes,
one
solution
existence
individual
pathways
serving
different
functions,
distinct
nodes
for
pathways.
Indeed,
this
conceptual
framework
already
dogma
anatomically
pathways,
mesocortical,
mesolimbic
mesostriatal
(Bjorklund
&
Dunnett,
2007).
Here,
we
discuss
our
existing
knowledge
attempt
provide
roadmap
novel
insights
into
motor
disease
(PD)
(Fig.
1A).
By
exploring
correlating
relative
degeneration
SNc,
may
gain
deeper
understanding
cell-intrinsic
mechanisms
underlying
why
some
degenerate
more
than
others
PD.
Similarly,
by
mapping
inputs,
projections,
functions
better
understand
roles
circuit-level
dysfunction
diseases.