American Journal of Psychiatry,
Journal Year:
2022,
Volume and Issue:
179(4), P. 267 - 276
Published: April 1, 2022
The
major
cause
of
disability
in
schizophrenia
is
cognitive
impairment,
which
remains
largely
refractory
to
existing
treatments.
This
reflects
the
fact
that
antipsychotics
and
other
therapies
have
not
been
designed
address
specific
brain
abnormalities
impairment.
overview
proposes
understanding
how
cellular
synaptic
loci
within
cortical
microcircuits
contribute
gamma
oscillations
may
reveal
treatments
for
Gamma
are
rhythmic
patterns
high
frequency
(∼30–100
Hz)
neuronal
activity
synchronized
across
regions,
generated
by
a
class
inhibitory
interneurons
express
parvalbumin,
recruited
during
variety
tasks.
In
schizophrenia,
both
parvalbumin
interneuron
function
task-evoked
deficient.
While
it
has
long
controversial
whether
merely
biomarker
circuit
or
actually
information
processing
networks,
recent
neurobiological
studies
mice
shown
disrupting
enhancing
can
reproduce
ameliorate
deficits
resembling
those
seen
schizophrenia.
fact,
transiently
synchrony
interneuron–generated
lead
long-lasting
improvements
cognition
model
aspects
emerge
from
connections
between
cell
types
microcircuits.
Thus,
critical
next
step
understand
synapses
generate
oscillations,
mediate
effects
on
processing,
and/or
undergo
plasticity
following
induction
oscillations.
Modulating
these
loci,
potentially
combination
with
approaches
such
as
training
stimulation,
yield
potent
selective
interventions
Faculty Reviews,
Journal Year:
2022,
Volume and Issue:
11
Published: April 28, 2022
Premenstrual
syndrome
(PMS)
and
premenstrual
dysphoric
disorder
(PMDD)
are
common
disorders
of
the
luteal
phase
menstrual
cycle
characterized
by
moderate
to
severe
physical,
affective,
or
behavioral
symptoms
that
impair
daily
activities
quality
life.
PMS
PMDD
have
recently
raised
great
interest
in
research
community
for
their
considerable
global
prevalence.
The
etiology
PMS/PMDD
is
complex.
Ovarian
reproductive
steroids
(estradiol
progesterone)
considered
pathogenetic
effectors,
but
key
feature
seems
be
an
altered
sensitivity
GABAergic
central
inhibitory
system
allopregnanolone,
a
neurosteroid
derived
from
progesterone
produced
after
ovulation.
Also,
reduced
availability
serotonin
involved.
New
insights
point
role
genetic
epigenetic
modifications
hormonal
neurotransmitter
pathways,
inflammation
potential
link
between
peripheral
neurological
integrated
responses
stressors.
Thus,
new
therapeutic
approaches
include
inhibition
receptors
brain
(i.e.,
with
ulipristal
acetate),
conversion
its
metabolite
allopregnanolone
dutasteride,
possible
modulation
action
on
sepranolone.
Further
needed
better
understand
interaction
inflammatory
molecules
(cytokines,
interleukins,
C-reactive
protein,
reactive
oxygen
species)
systems
women
PMS/PMDD.
If
confirmed,
neuroinflammation
could
lead
both
develop
targeted
anti-inflammatory
therapies
define
prevention
strategies
associated
chronic
risk
Finally,
observed
association
psychological
diseases
may
guide
prompt
adequate
interventions
achieve
Translational Psychiatry,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: June 26, 2023
The
pathophysiology
of
major
depressive
disorder
(MDD)
is
thought
to
result
from
impaired
connectivity
between
key
brain
networks.
Gamma-aminobutyric
acid
(GABA)
the
inhibitory
neurotransmitter
in
brain,
working
primarily
via
GABA
Brain Sciences,
Journal Year:
2025,
Volume and Issue:
15(2), P. 161 - 161
Published: Feb. 6, 2025
Background/Objectives:
Non-response
to
initial
treatment
options
for
major
depressive
disorder
(MDD)
is
a
common
clinical
challenge
with
profound
deleterious
impacts
affected
patients.
Few
treatments
have
received
regulatory
approval
treatment-resistant
depression
(TRD).
Methods:
A
systematic
search
of
United
States
and
European
Union
trials
registries
was
conducted
identify
Phase
II,
III,
or
IV
trials,
last
update
posted
on
after
1
January
2020,
that
were
evaluating
medications
TRD.
For
both
the
US
EU
registries,
condition
term
"treatment
resistant
depression"
associated
lower-level
terms
(per
registry
protocol)
used.
registry,
secondary
using
"depressive
disorders"
modifying
"inadequate"
also
performed
capture
registrations
not
tagged
as
Two
additional
searches
in
"suicide"
"anhedonia"
transdiagnostic
targets
investigational
medications.
Trials
categorized
based
primary
mechanism
action
trial's
medication.
Results:
Fifty
TRD,
20
anhedonia,
25
suicide
identified.
Glutamate
system
modulation
currently
most
compounds
development,
including
antagonists
allosteric
modulators
NMDA
receptors,
AMPA
metabotropic
type
2/3
glutamate
intracellular
effector
molecules
downstream
signaling.
Psychedelics
seen
greatest
surge
among
mechanistic
past
5
years,
however,
psilocybin
particular
garnering
significant
attention.
Other
mechanisms
included
GABA
modulators,
monoamine
anti-inflammatory/immune-modulating
agents,
an
orexin
2
receptor
antagonist.
Conclusions:
These
investigations
offer
substantial
promise
more
efficacious
potentially
personalized
medication
approaches
Challenges
detecting
efficacy
TRD
include
heterogeneity
within
population
stemming
from
presumed
variety
biological
dysfunctions
underlying
disorder,
comorbid
disorders,
chronic
psychosocial
stressors,
enduring
effects
prior
serotonergic
antidepressant
treatments.
International Journal of Molecular Sciences,
Journal Year:
2021,
Volume and Issue:
22(11), P. 5495 - 5495
Published: May 23, 2021
Under
stressful
conditions,
the
hypothalamic-pituitary-adrenal
(HPA)
axis
acts
to
promote
transitory
physiological
adaptations
that
are
often
resolved
after
stimulus
is
no
longer
present.
In
addition
corticosteroids
(e.g.,
cortisol),
neurosteroid
allopregnanolone
(3α,5α-tetrahydroprogesterone,
3α-hydroxy-5α-pregnan-20-one)
participates
in
negative
feedback
mechanisms
restore
homeostasis.
Chronic,
repeated
exposure
stress
impairs
responsivity
of
HPA
and
dampens
levels,
participating
etiopathology
psychiatric
disorders,
such
as
major
depressive
disorder
(MDD)
post-traumatic
(PTSD).
MDD
PTSD
patients
present
abnormalities
regulation,
altered
cortisol
levels
or
failure
suppress
release
dexamethasone
suppression
test.
Herein,
we
review
neurophysiological
role
both
a
potent
positive
GABAergic
neuromodulator
but
also
its
capacity
inhibiting
axis.
The
function
recapitulate
stress-induced
pathophysiology,
including
PTSD,
potential
treatment
target
biomarker
for
these
disorders
discussed.
Frontiers in Medicine,
Journal Year:
2021,
Volume and Issue:
7
Published: Jan. 18, 2021
Women
worldwide
are
two
to
three
times
more
likely
suffer
from
depression
in
their
lifetime
than
men.
Female
risk
for
depressive
symptoms
is
particularly
high
during
the
reproductive
years
between
menarche
and
menopause.
The
term
“Reproductive
Mood
Disorders”
refers
disorders
triggered
by
hormonal
fluctuations
transitions
including
perimenarchal
phase,
pre-menstrual
pregnancy,
peripartum
period
perimenopausal
transition.
Here
we
focus
on
mood
manifesting
adult
life.
We
propose
a
research
agenda
that
draws
together
several
investigates
which
genetic,
endocrinological,
neural,
psychosocial
factors
can
explain
phases
of
women.
Based
current
it
assumed
some
women
experience
an
increased
sensitivity
not
only
steroids
(estrogen
progesterone),
but
also
stress-related
steroids.
integrate
both
dynamics
into
concept
“steroid
hormone
sensitivity,”
expanding
“reproductive
sensitivity.”
suggest
differential
response
stress
steroid
system
corticosteroids,
neurosteroids,
like
allopregnanolone
GABA-A
Receptor
complex,
as
well
(epi)genetic
serotonergic
GABAergic
signaling,
moderators
or
mediators
changes
physiological,
affective,
cognitive
outcomes
disorders.
point
lack
role
increasing
woman's
level
at
her
within
etiology
Reproductive
Disorders.
Drawing
evidence
various
seek
present
basis
development
effective
pharmacological,
social,
psychological
treatment
interventions
prevention
strategies
susceptible
these
This
could
pave
way
new
medical
teaching
practice-
such
type
Practice
Gynecological
Psychoneuroendocrinology-
with
aim
working
ultimately
offering
integrative
forms
support
yet
available
suffering
transitions.
In
history
have
been
left
alone
this
challenge.
Cephalalgia,
Journal Year:
2021,
Volume and Issue:
42(2), P. 128 - 161
Published: Aug. 18, 2021
Background
Burning
mouth
syndrome
is
a
chronic
idiopathic
intractable
intraoral
dysaesthesia
that
remains
challenge
to
clinicians
due
its
poorly
understood
pathogenesis
and
inconsistent
response
various
treatments.
Aim
This
review
aimed
study
the
short-
(≤3
months)
long-term
(>3
effectiveness
sustainable
benefit
of
different
burning
treatment
strategies
associated
side
effects.
Materials
methods
Randomised
controlled
trials
compared
with
placebo
or
other
interventions
minimum
follow
up
2
months
were
searched
from
PubMed,
Embase
Cochrane
database
(published
July
2020).
Results
Twenty-two
studies
selected
based
on
inclusion
exclusion
criteria
analysed.
Nine
categories
identified:
Anticonvulsant
antidepressant
agents,
phytomedicine
alpha
lipoic
acid
supplements,
low-level
laser
therapy,
saliva
substitute,
transcranial
magnetic
stimulation,
cognitive
behaviour
therapy.
Cognitive
topical
capsaicin
clonazepam,
therapy
demonstrated
favourable
outcome
in
both
assessment.
Phytomedicines
reported
short-term
pain
score
reduction.
The
pooled
effect
(ALA)
improvement
was
low,
but
positive
effects
increased
long
term
Conclusion
A
more
significant
volume
terms
sample
size,
multi-centres,
multi-arm
comparison
therapeutic
agents
longitudinal
follow-up
recommended
establish
standardised
protocol.
Further
are
required
assess
analgesic
benefits
clonazepam
capsaicin,
alternative
medicines
neurodegenerative
prevention
capability
psychology
support
treating
reducing
systemic
adverse
drug
reactions.
Registration
International
Prospective
Register
Systematic
Reviews
(PROSPERO):
Protocol
ID
-
CRD42020160892.
Journal of Neuroendocrinology,
Journal Year:
2021,
Volume and Issue:
34(2)
Published: June 1, 2021
Allopregnanolone,
a
3α,5α-progesterone
metabolite,
acts
as
potent
allosteric
modulator
of
the
γ-aminobutyric
acid
type
A
receptor.
In
present
review,
synthesis
this
neuroactive
steroid
occurring
in
nervous
system
is
discussed
with
respect
to
physiological
and
pathological
conditions.
addition,
its
neuroprotective
effects
are
also
reported.
Interestingly,
levels
steroid,
well
effects,
sex-dimorphic,
suggesting
possible
gender
medicine
based
on
for
neurological
disorders.
However,
allopregnanolone
presents
low
bioavailability
extensive
hepatic
metabolism,
limiting
use
drug.
Therefore,
synthetic
analogues
or
different
therapeutic
strategy
able
increase
have
been
proposed
overcome
any
pharmacokinetic
issues.