medRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 16, 2024
ABSTRACT
Increasing
evidence
suggests
the
involvement
of
metabolic
alterations
in
neurological
disorders,
including
Alzheimer’s
disease
(AD),
and
highlights
significance
peripheral
metabolome,
influenced
by
genetic
factors
modifiable
environmental
exposures,
for
brain
health.
In
this
study,
we
examined
1,387
metabolites
plasma
samples
from
1,082
dementia-free
middle-aged
participants
population-based
Rotterdam
Study.
We
assessed
relation
with
general
cognition
(G-factor)
magnetic
resonance
imaging
(MRI)
markers
using
linear
regression
estimated
variance
these
explained
genes,
gut
microbiome,
lifestyle
factors,
common
clinical
comorbidities,
medication
gradient
boosting
decision
tree
analysis.
Twenty-one
one
metabolite
were
significantly
associated
total
volume
white
matter
lesions,
respectively.
Fourteen
showed
significant
associations
G-factor,
ergothioneine
exhibiting
largest
effect
(adjusted
mean
difference
=
0.122,
P
4.65x10
-7
).
Associations
nine
14
replicated
an
independent,
older
cohort.
The
signature
incident
AD
replication
cohort
resembled
that
discovery
cohort,
emphasizing
potential
relevance
identified
to
pathogenesis.
Lifestyle,
variables,
most
important
determining
metabolites’
blood
levels,
lifestyle,
explaining
up
28.6%
variance.
Smoking
was
ten
linked
while
diabetes
antidiabetic
13
MRI
markers,
N-lactoyltyrosine.
Antacid
strongly
affected
levels.
Mediation
analysis
revealed
lower
levels
may
partially
mediate
negative
effects
antacids
on
(31.5%).
Gut
microbial
more
(beta-cryptoxanthin,
imidazole
propionate),
suggesting
they
be
involved
later
process.
detailed
results
how
multiple
affect
cognition-
imaging-related
help
identify
new
prevention
strategies.
Brain Sciences,
Год журнала:
2025,
Номер
15(2), С. 159 - 159
Опубликована: Фев. 6, 2025
Parkinson's
disease
is
recognized
as
the
second
most
prevalent
neurodegenerative
disorder
globally,
with
its
incidence
rate
projected
to
increase
alongside
ongoing
population
growth.
However,
precise
etiology
of
remains
elusive.
This
article
explores
inflammatory
mechanisms
linking
gut
microbiota
disease,
emphasizing
alterations
in
and
their
metabolites
that
influence
disease's
progression
through
bidirectional
transmission
signals
along
gut-brain
axis.
Building
on
this
mechanistic
framework,
further
discusses
research
methodologies
treatment
strategies
focused
metabolites,
including
metabolomics
detection
techniques,
animal
model
investigations,
therapeutic
approaches
such
dietary
interventions,
probiotic
treatments,
fecal
transplantation.
Ultimately,
aims
elucidate
relationship
between
underlying
thereby
paving
way
for
novel
avenues
condition.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(2), С. 544 - 544
Опубликована: Янв. 10, 2025
Cicadae
Periostracum
(CP)
is
a
traditional
Chinese
animal-derived
medicine
with
the
potential
to
treat
Parkinson’s
disease
(PD).
This
study
aims
explore
pharmacodynamic
mechanisms
of
CP
against
PD-based
on
metabolomics
technology
and
provide
theoretical
basis
for
developing
new
anti-PD
medicine.
First,
MPP+-induced
SH-SY5Y
cells
were
used
evaluate
activity
CP.
In
animal
study,
an
MPTP-induced
PD
mouse
model
was
employed
assess
CP’s
therapeutic
effects.
Immunofluorescence
(IF)
staining
Western
blotting
(WB)
its
neuroprotective
neurons.
A
Serum
analysis
conducted
examine
regulatory
effects
metabolites
identify
vital
metabolic
pathways.
Finally,
cellular
experiments
performed
validate
critical
Cellular
demonstrated
that
mitigates
cytotoxicity,
inhibits
apoptosis,
restores
mitochondrial
homeostasis.
Animal
revealed
significantly
alleviates
dyskinesia
in
mice,
enhances
motor
performance,
neuronal
integrity
while
reducing
α-synuclein
(α-syn)
aggregation
striatum
(STR),
showing
strong
effect.
Metabolomic
can
improve
disorders
ten
biomarkers
are
mainly
involved
amino
acid
metabolism
fatty
β-oxidation
closely
related
oxidative
stress
pathway
verification
performed,
results
show
exerted
through
dual
signaling
pathways
Bcl-2/Bax/Caspase-3
Nrf2/HO-1.
provides
comprehensive
strategy
elucidating
by
which
exerts
PD,
highlighting
drugs.
ACS Chemical Neuroscience,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 19, 2025
p-Cresol,
an
environmental
contaminant
and
endogenous
metabolite
derived
primarily
from
the
conversion
of
l-tyrosine
by
intestinal
microflora,
is
gaining
increasing
attention,
due
to
its
potential
impact
on
human
health.
Recent
studies
have
highlighted
elevated
levels
p-cresol
metabolites,
including
p-cresyl
sulfate
glucuronide,
in
various
populations,
suggesting
a
correlation
with
neurodevelopmental
neurodegenerative
conditions.
While
role
this
compound
as
uremic
toxin
well
established,
presence
concentration
within
central
nervous
system
(CNS)
remain
largely
unexplored.
To
address
gap,
high-performance
liquid
chromatography-electrospray
ionization-tandem
mass
spectrometry
(HPLC-ESI-MS/MS)
method
was
optimized
validated
for
first
time
work
targeted
metabolomics
brain
tissues.
This
enabled
quantification
different
areas
adult
male
female
C57BL/6J
mice
cortex
mouse
strains,
CD-1
idiopathic
autism
model
BTBR
T+Itpr3tf/J.
Additionally,
preliminary
analyses
samples
confirmed
p-cresol,
relevance
Moreover,
metabolomic
further
explored
correlations
between
neurotransmitters,
particular
focus
dopaminergic
noradrenergic
pathways.
These
findings
pave
way
understanding
neurochemical
networks
implications
disorders.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(4), С. 1513 - 1513
Опубликована: Фев. 11, 2025
Para-cresol
(p-cresol),
and
its
primary
human
metabolite
p-cresol
sulfate
(pCS),
are
among
the
most
studied
gut-derived
metabolites
relevant
to
autism
spectrum
disorder
(ASD).
P-cresol
is
produced
by
bacterial
modification
of
phenylalanine
or
tyrosine
one
many
potentially
deleterious
gut
microbiota.
Seventeen
studies
have
observed
and/or
as
being
higher
in
urine
children
with
(ASD)
vs.
controls.
has
harmful
effects
on
body,
including
within
gut,
brain,
kidneys,
liver,
immune
system,
mitochondria.
Some
these
may
contribute
comorbid
symptoms.
In
acts
an
antibiotic,
altering
microbiome
favor
bacteria
that
produce
it.
mitochondria,
disrupts
ATP
production
increases
oxidative
stress,
which
also
common
autism.
impairs
neuronal
development.
inactivates
dopamine
beta-hydroxylase,
converts
noradrenaline.
kidney
function
linked
chronic
disease
(CKD),
more
ASD
adults.
interferes
function.
Three
animal
demonstrated
causes
autism-related
symptoms
mice,
mice
can
be
recovered
administration
fecal
microbiota
transplant
from
healthy
mice.
Similarly,
it
was
found
therapy
treatment
significantly
reduced
levels
normal
led
significant
improvements
gastrointestinal
(GI)
summary,
pCS
likely
core
a
substantial
subset
ASD.
Medicinal Research Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
ABSTRACT
Astrocytes
undergo
a
reactive
transformation
in
central
nervous
system
(CNS)
disorders,
manifesting
significant
heterogeneity
morphology,
molecules,
function,
and
spatial
distribution.
Just
like
all
cells,
astrocytes
necessitate
energy
for
their
basic
functions.
Energy
production
proves
critical
the
survival
development
of
astrocytes,
as
well
fate
determination
functional
diversity.
The
activation
process
involves
metabolic
shift
energy,
yet
our
understanding
how
this
change
impacts
remains
limited.
In
comprehensive
review,
we
begin
by
outlining
advancements
research
on
CNS
establishing
crucial
association
between
metabolism
molecular
aspects.
Following
this,
delve
into
thorough
analysis
transitions
within
context
diseases.
Starting
from
essential
pathways
metabolism,
present
novel
perspective,
shedding
light
considering
metabolism.
conclusion,
propose
that
modulation
coupled
with
promotion
functionality
toward
disease
recovery,
represents
cutting‐edge
promising
strategy
treatment