MAMMALIAN COPPER HOMEOSTASIS: PHYSIOLOGIC ROLES AND MOLECULAR MECHANISMS
Physiological Reviews,
Journal Year:
2024,
Volume and Issue:
105(1), P. 441 - 491
Published: Aug. 22, 2024
In
the
past
decade,
evidence
for
numerous
roles
of
copper
(Cu)
in
mammalian
physiology
has
grown
exponentially.
The
discoveries
Cu
involvement
cell
signaling,
autophagy,
motility,
differentiation,
and
regulated
death
(cuproptosis)
have
markedly
extended
list
already
known
functions
Cu,
such
as
a
cofactor
essential
metabolic
enzymes,
protein
structural
component,
regulator
trafficking.
Novel
unexpected
transporting
proteins
enzymes
been
identified,
new
disorders
homeostasis
described.
Significant
progress
made
mechanistic
studies
two
classic
metabolism,
Menkes
disease
Wilson’s
disease,
which
paved
way
novel
approaches
to
their
treatment.
discovery
cuproptosis
role
metastatic
growth
increased
interest
targeting
homeostatic
pathways
treat
cancer.
this
review,
we
summarize
established
concepts
field
discuss
how
decade
expand
modify
these
concepts.
brain
metabolism
functional
speciation
recently
discovered
attracted
significant
attention
are
highlighted
review.
Language: Английский
Efficacy and safety of levodopa in secondary dystonia due to neurological Wilson disease (LIDWID)
Annals of Movement Disorders,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Abstract
BACKGROUND:
Dystonia
is
the
most
prevalent
movement
disorder
in
neurologic
Wilson
disease
(NWD).
While
levodopa
has
demonstrated
efficacy
certain
forms
of
primary
dystonia,
its
effectiveness
NWD
not
been
evaluated.
This
study
aimed
to
evaluate
and
safety
compared
placebo
patients
with
dystonia
associated
through
an
open-label,
randomized
controlled
trial.
METHODS:
Patients
diagnosed
a
Burke–Fahn–Marsden
Rating
(BFMDR)
score
greater
than
20
were
included,
provided
that
other
potential
causes
excluded.
Participants
randomly
assigned
receive
either
levodopa–carbidopa
(LCD)
or
placebo,
using
1:1
randomization
protocol.
The
LCD
(100
mg
+
10
mg)
was
initially
administered
dose
half
tablet
thrice
daily,
dosage
increasing
every
week
2
tablets
daily.
group
received
saccharine
tablets.
outcome
assessed
at
3
months.
improvement
BFMDR
by
more
50%.
Secondary
outcomes
included
Neurological
Severity
Grade
(NSG),
Dysphagia
Outcome
Scale
(DOSS),
Neuropsychiatric
inventory
(NPI),
incidence
side
effects.
RESULTS:
Fifteen
placebo.
Only
one
patient
each
achieved
outcome.
At
months,
both
groups
showed
improvements
BFMRD,
NSG,
DOSS
scores.
However,
BFMDRS
(P
=
0.36),
NPI
0.20),
0.92),
NSG
0.84)
significantly
different
between
groups.
Four
experienced
minor
CONCLUSION:
safe
well-tolerated
NWD.
Although
did
demonstrate
significant
advantage
over
reducing
dystonia.
Language: Английский
Tackling the neurological manifestations in Wilson’s disease – currently available treatment options
Expert Review of Neurotherapeutics,
Journal Year:
2023,
Volume and Issue:
23(12), P. 1249 - 1259
Published: Oct. 16, 2023
ABSTRACTIntroduction
Wilson’s
disease
(WD)
is
a
potentially
treatable,
inherited
disorder
resulting
from
impaired
copper
metabolism.
Pathological
accumulation
causes
range
of
symptoms,
most
commonly
hepatic
and
wide
spectrum
neurological
symptoms
including
tremor,
dystonia,
chorea,
parkinsonism,
dysphagia,
dysarthria,
gait
posture
disturbances.
To
reduce
overload,
anti-copper
drugs
are
used
that
improve
liver
function
in
up
to
85%
patients.
However,
some
WD
patients,
treatment
introduction
leads
deterioration,
others,
persist
with
no
improvement
or
only
after
several
years
treatment,
severely
affecting
the
patient’s
quality
life.Areas
covered
This
review
appraises
evidence
on
various
pharmacological
non-pharmacological
therapies,
neurosurgical
procedures
transplantation
for
management
symptoms.
The
authors
also
discuss
WD,
deterioration
present
symptomatic
options.Expert
opinion
Based
case
series
reports,
current
recommendations
expert
opinion,
focused
mainly
leading
negative
body
metabolism
(chelators
zinc
salts)
copper-restricted
diet.
Treatment
should
follow
general
treatment.
Patients
be
always
considered
individually,
especially
severe,
disabling
symptoms.KEYWORDS:
diseaseneurological
symptomsdystonia,
parkinsonismdysphagia,
dysarthriasymptomatic
Declaration
interestThe
have
relevant
affiliations
financial
involvement
any
organization
entity
interest
conflict
subject
matter
materials
discussed
manuscript.
includes
employment,
consultancies,
honoraria,
stock
ownership
options,
testimony,
grants
patents
received
pending,
royalties.Reviewer
disclosuresPeer
reviewers
this
manuscript
other
relationships
disclose.Additional
informationFundingThis
paper
was
not
funded.
Language: Английский
Machine Learning Approaches to Identify Affected Brain Regions in Movement Disorders Using MRI Data: A Systematic Review and Diagnostic Meta‐analysis
Journal of Magnetic Resonance Imaging,
Journal Year:
2024,
Volume and Issue:
60(6), P. 2518 - 2546
Published: March 27, 2024
Background
Movement
disorders
such
as
Parkinson's
disease
are
associated
with
structural
and
functional
changes
in
specific
brain
regions.
Advanced
magnetic
resonance
imaging
(MRI)
techniques
combined
machine
learning
(ML)
promising
tools
for
identifying
biomarkers
patterns
these
disorders.
Purpose/Hypothesis
We
aimed
to
systematically
identify
the
regions
most
commonly
affected
movement
using
ML
approaches
applied
MRI
data.
searched
PubMed
Scopus
databases
relevant
keywords
up
June
2023
studies
that
used
detect
Study
Type
A
systematic
review
diagnostic
meta‐analysis.
Population/Subjects
Sixty‐seven
6,285
patients
were
included.
Field
Strength/Sequence
Studies
utilizing
1.5T
or
3T
MR
scanners
acquisition
of
diffusion
tensor
(DTI),
(sMRI),
(fMRI),
a
combination
Assessment
The
authors
independently
assessed
study
quality
CLAIM
QUADAS‐2
criteria
extracted
data
on
accuracy
measures.
Statistical
Tests
Sensitivity,
specificity,
accuracy,
area
under
curve
pooled
random‐effects
models.
Q
statistics
I
2
index
evaluate
heterogeneity,
Begg's
funnel
plot
was
publication
bias.
Results
sMRI
showed
highest
sensitivity
(93%)
mixed
modalities
had
specificity
(90%)
detecting
regional
abnormalities.
94%
subcortical
changes.
support
vector
logistic
regression
(91%)
models
exhibited
high
accuracies.
Data
Conclusion
advanced
neuroimaging
is
approach
structures
frequently
implicated.
Structural
MRI,
particular,
strong
performance.
Level
Evidence
1
Technical
Efficacy
Stage
Language: Английский
Parkinsonism in liver diseases or dysfunction
Sichen Li,
No information about this author
Yuxia Zhua,
No information about this author
Xi Liu
No information about this author
et al.
Medicina Clínica,
Journal Year:
2024,
Volume and Issue:
163(9), P. 461 - 468
Published: July 2, 2024
Parkinsonism in liver diseases or dysfunction
Sichen Li,
No information about this author
Yuxia Zhua,
No information about this author
Xi Liu
No information about this author
et al.
Medicina Clínica (English Edition),
Journal Year:
2024,
Volume and Issue:
163(9), P. 461 - 468
Published: Nov. 1, 2024
Language: Английский
Catching the Culprit: How Chorea May Signal an Inborn Error of Metabolism
Tremor and Other Hyperkinetic Movements,
Journal Year:
2023,
Volume and Issue:
13, P. 36 - 36
Published: Oct. 6, 2023
Background:
Movement
disorders,
particularly
chorea,
are
uncommon
in
inborn
errors
of
metabolism,
but
their
identification
is
essential
for
improved
clinical
outcomes.
In
this
context,
comprehensive
descriptions
movement
disorders
limited
and
primarily
derived
from
single
cases
or
small
patient
series,
highlighting
the
need
increased
awareness
additional
research
field.
Methods:
A
systematic
review
was
conducted
using
MEDLINE
database
GeneReviews.
The
search
included
studies
on
metabolism
associated
with
athetosis,
ballismus.
adhered
to
PRISMA
guidelines.
Results:
analyzed
76
out
2350
records,
encompassing
period
1964
2022.
Chorea
observed
90.1%
173
patients,
followed
by
athetosis
5.7%.
Various
showed
an
association
trace
elements
metals
being
most
frequent.
Cognitive
developmental
abnormalities
were
common
cohort.
Frequent
neurological
features
seizures,
dysarthria,
optic
atrophy,
whereas
non-neurological
included,
among
others,
facial
dysmorphia
failure
thrive.
Neuroimaging
biochemical
testing
played
crucial
roles
aiding
diagnosis,
revealing
abnormal
findings
34.1%
47.9%
respectively.
However,
symptomatic
treatment
efficacy
limited.
Discussion:
This
study
emphasizes
complexities
chorea
metabolism.
approach
red
flags,
testing,
neuroimaging
required
diagnosis.
Collaboration
between
neurologists,
geneticists,
metabolic
specialists
improving
early
detection
individualized
treatment.
Utilizing
genetic
technologies
potential
therapeutic
avenues
can
aid
improvement
Language: Английский