Apremilast reduces co-occurring alcohol drinking and mechanical allodynia and regulates central amygdala GABAergic transmission
JCI Insight,
Год журнала:
2025,
Номер
10(8)
Опубликована: Апрель 21, 2025
The
FDA-approved
phosphodiesterase
type
4
(PDE4)
inhibitor,
apremilast,
has
been
recently
investigated
as
a
pharmacotherapy
for
alcohol
use
disorder
(AUD)
with
promising
efficacy
in
rodent
models
and
humans.
However,
apremilast's
effects
on
mechanical
allodynia
associated
AUD
well
distinct
responses
of
this
drug
between
males
females
are
understudied.
present
study
examined
the
behavioral
electrophysiological
apremilast
Marchigian
Sardinian
alcohol-preferring
(msP)
rats
their
Wistar
counterparts.
We
used
2-bottle
choice
(2-BC)
drinking
procedure
tested
sensitivity
across
our
regimen.
Spontaneous
inhibitory
GABA-mediated
postsynaptic
currents
from
central
nucleus
amygdala
(CeA)
following
application
were
subset
using
ex
vivo
electrophysiology.
Transcript
levels
Pde4a
or
-4b
subtypes
assessed
modulation
by
alcohol.
Apremilast
reduced
both
strains
rats.
immediately
after
drinking,
persisting
into
early
late
abstinence.
increased
GABAergic
transmission
CeA
slices
alcohol-exposed
Wistars
but
not
msP
rats,
suggesting
neuroadaptations
msPs
excessive
allodynia.
Pde4
subtype
transcript
These
results
suggest
that
alleviates
co-occurring
pain
sensitivity,
they
further
confirm
PDE4's
role
pain-associated
AUD.
Язык: Английский
Chronic intermittent ethanol produces nociception through endocannabinoid-independent mechanisms in mice
Neuropharmacology,
Год журнала:
2025,
Номер
unknown, С. 110502 - 110502
Опубликована: Май 1, 2025
Язык: Английский
Chronic intermittent ethanol produces nociception through endocannabinoid-independent mechanisms in mice
Опубликована: Ноя. 11, 2024
Abstract
Alcohol
use
disorder
(AUD)
affects
millions
of
people
and
represents
a
significant
health
economic
burden.
Pain
frequently
under-treated
aspect
hyperkatifeia
during
alcohol
withdrawal,
yet
to
date
no
drugs
have
received
FDA
approval
for
the
treatment
this
indication
in
AUD
patients.
This
study
aims
evaluate
potential
targeting
bioactive
lipid
signaling
pathways
as
therapeutic
approach
treating
withdrawal-related
pain.
We
utilized
chronic
intermittent
ethanol
(CIE)
vapor
exposure
model
C57BL/6J
mice
both
sexes
establish
dependence,
demonstrated
that
CIE
developed
robust
tactile
allodynia
thermal
hyperalgesia
withdrawal
was
independent
prior
blood
levels.
Next,
we
evaluated
four
their
efficacy
reversing
abstinence
from
using
cross-over
design
included
FDA-approved
naltrexone
well
commercially
available
inhibitors
inflammatory
enzymes
including
fatty
acid
amide
hydrolase
(FAAH),
monoacylglycerol
lipase
(MAGL),
15-Lipoxygenase
(LOX).
None
these
compounds
produced
benefit
established
CIE-induced
allodynia,
despite
attenuating
pain-like
behaviors
at
doses
other
pain
models.
Additionally,
assessed
plasma
endocannabinoid
levels
withdrawal.
found
there
is
an
inherent
sex
difference
endogenous
anti-inflammatory
tone
naive
affected
endocannabinoids
female
only.
These
findings
underscore
need
better
understand
driving
causes
induced
develop
novel
approaches
mitigate
Язык: Английский