The Journal of Physiological Sciences,
Journal Year:
2022,
Volume and Issue:
72(1)
Published: Aug. 29, 2022
Abstract
The
breathing
process
possesses
a
complex
variability
caused
in
part
by
the
respiratory
central
pattern
generator
brainstem;
however,
it
also
arises
from
chemical
and
mechanical
feedback
control
loops,
network
reorganization
sharing
with
nonrespiratory
motor
acts,
as
well
inputs
cortical
subcortical
systems.
notion
that
fluctuations
contain
hidden
information
has
prompted
scientists
to
decipher
signals
better
understand
fundamental
mechanisms
of
generation,
interactions
emotion,
influences
on
neuronal
networks
associated
cognition,
changes
healthy
disease-carrying
individuals.
Respiration
can
be
used
express
emotion.
Furthermore,
respiration
appears
organize
brain-wide
oscillations
via
cross-frequency
coupling,
optimizing
cognitive
performance.
With
aid
theory-based
techniques
machine
learning,
translated
into
form
usable
clinical
practice
for
diagnosis,
emotion
recognition,
mental
conditioning.
Respiration
is
a
brain
function
on
which
our
lives
essentially
depend.
Control
of
respiration
ensures
that
the
frequency
and
depth
breathing
adapt
continuously
to
metabolic
needs.
In
addition,
respiratory
control
network
has
organize
muscular
synergies
integrate
ventilation
with
posture
body
movement.
Finally,
coupled
cardiovascular
emotion.
Here,
we
argue
can
handle
this
all
by
integrating
brainstem
central
pattern
generator
circuit
in
larger
also
comprises
cerebellum.
Although
currently
not
generally
recognized
as
center,
cerebellum
well
known
for
its
coordinating
modulating
role
motor
behavior,
autonomic
nervous
system.
review,
discuss
regions
involved
respiration,
their
anatomical
functional
interactions.
We
how
sensory
feedback
result
adaptation
these
mechanisms
be
compromised
various
neurological
psychological
disorders.
demonstrate
generators
are
part
integrated
regions.
Journal of Neurophysiology,
Journal Year:
2021,
Volume and Issue:
125(5), P. 1899 - 1919
Published: April 7, 2021
Opioid-induced
respiratory
depression
(OIRD)
represents
the
primary
cause
of
death
associated
with
therapeutic
and
recreational
opioid
use.
Within
United
States,
rate
from
abuse
since
early
1990s
has
grown
disproportionally,
prompting
classification
as
a
nationwide
“epidemic.”
Since
this
time,
we
have
begun
to
unravel
many
fundamental
cellular
systems-level
mechanisms
opioid-related
death.
However,
factors
such
individual
vulnerability,
neuromodulatory
compensation,
redundancy
effects
across
central
peripheral
nervous
systems
created
barrier
concise,
integrative
view
OIRD.
review,
bring
together
multiple
perspectives
in
field
OIRD
create
an
overarching
viewpoint
what
know,
where
essential
topic
research
going
forward
into
future.
Heart
rate
and
blood
pressure
oscillate
in
phase
with
respiratory
activity.
A
component
of
these
oscillations
is
generated
centrally,
neurons
entraining
the
activity
pre-sympathetic
parasympathetic
cardiovascular
neurons.
Using
a
combination
optogenetic
inhibition
excitation
vivo
situ
rats,
as
well
neuronal
tracing,
we
demonstrate
that
preBötzinger
Complex
(preBötC)
neurons,
which
form
kernel
for
inspiratory
rhythm
generation,
directly
modulate
Specifically,
inhibitory
preBötC
cardiac
neuron
whilst
excitatory
sympathetic
vasomotor
activity,
generating
heart
respiration.
Our
data
reveal
yet
more
functions
entrained
to
preBötC,
role
cardiorespiratory
oscillations.
The
findings
have
implications
pathologies,
such
hypertension
failure,
where
entrainment
diminished
exaggerated.
British Journal of Pharmacology,
Journal Year:
2021,
Volume and Issue:
180(7), P. 813 - 828
Published: June 5, 2021
Respiratory
depression
is
the
proximal
cause
of
death
in
opioid
overdose,
yet
mechanisms
underlying
this
potentially
fatal
outcome
are
not
well
understood.
The
goal
review
to
provide
a
comprehensive
understanding
pharmacological
opioid‐induced
respiratory
depression,
which
could
lead
improved
therapeutic
options
counter
as
other
detrimental
effects
opioids
on
breathing.
development
tolerance
system
also
discussed,
differences
degree
caused
by
various
agonists.
Finally,
potential
future
agents
aimed
at
reversing
or
avoiding
through
non‐opioid
receptor
targets
and
certain
advantages
over
naloxone.
By
providing
an
overview
network,
will
benefit
research
countering
depression.
LINKED
ARTICLES
This
article
part
themed
issue
Advances
Opioid
Pharmacology
Time
Epidemic.
To
view
articles
section
visit
http://onlinelibrary.wiley.com/doi/10.1111/bph.v180.7/issuetoc
Nature Neuroscience,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 5, 2024
Abstract
Breathing
is
vital
and
must
be
concurrently
robust
flexible.
This
rhythmic
behavior
generated
maintained
within
a
rostrocaudally
aligned
set
of
medullary
nuclei
called
the
ventral
respiratory
column
(VRC).
The
properties
individual
VRC
are
well
known,
yet
technical
challenges
have
limited
interrogation
entire
population
simultaneously.
Here
we
characterize
over
15,000
units
using
high-density
electrophysiology,
opto-tagging
histological
reconstruction.
Population
dynamics
analysis
reveals
consistent
rotational
trajectories
through
low-dimensional
neural
manifold.
These
rotations
even
during
opioid-induced
depression.
During
severe
hypoxia-induced
gasping,
reconfigure
from
to
all-or-none,
ballistic
efforts.
Thus,
latent
provide
unifying
lens
onto
activities
large,
heterogeneous
populations
neurons
involved
in
simple,
vital,
breathing,
describe
how
these
respond
variety
perturbations.
The
analgesic
utility
of
opioid-based
drugs
is
limited
by
the
life-threatening
risk
respiratory
depression.
Opioid-induced
depression
(OIRD),
mediated
μ-opioid
receptor
(MOR),
characterized
a
pronounced
decrease
in
frequency
and
regularity
inspiratory
rhythm,
which
originates
from
medullary
preBötzinger
Complex
(preBötC).
To
unravel
cellular-
network-level
consequences
MOR
activation
preBötC,
MOR-expressing
neurons
were
optogenetically
identified
manipulated
transgenic
mice
vitro
vivo.
Based
on
these
results,
model
OIRD
was
developed
silico.
We
conclude
that
hyperpolarization
-
expressing
preBötC
alone
does
not
phenocopy
OIRD.
Instead,
effects
are
twofold:
(1)
pre-inspiratory
spiking
reduced
(2)
excitatory
synaptic
transmission
suppressed,
thereby
disrupting
network-driven
rhythmogenesis.
These
dual
mechanisms
opioid
action
act
synergistically
to
make
normally
robust
rhythm-generating
network
particularly
prone
collapse
when
challenged
with
exogenous
opioids.
Physiology,
Journal Year:
2020,
Volume and Issue:
35(6), P. 391 - 404
Published: Oct. 14, 2020
Opioids
depress
minute
ventilation
primarily
by
reducing
respiratory
rate.
This
results
from
direct
effects
on
the
preBötzinger
Complex
as
well
depression
of
Parabrachial/Kölliker-Fuse
Complex,
which
provides
excitatory
drive
to
neurons
mediating
phase-switch.
also
awake
forebrain
and
chemodrive.
Journal of Neurophysiology,
Journal Year:
2021,
Volume and Issue:
127(1), P. 1 - 15
Published: Nov. 24, 2021
Parkinson's
disease
(PD)
is
characterized
by
the
progressive
loss
of
dopaminergic
neurons
in
substantia
nigra,
mainly
affecting
people
over
60
yr
age.
Patients
develop
both
classic
symptoms
(tremors,
muscle
rigidity,
bradykinesia,
and
postural
instability)
nonclassical
(orthostatic
hypotension,
neuropsychiatric
deficiency,
sleep
disturbances,
respiratory
disorders).
Thus,
patients
with
PD
can
have
a
significantly
impaired
quality
life,
especially
when
they
do
not
multimodality
therapeutic
follow-up.
The
alterations
associated
this
syndrome
are
main
cause
mortality
PD.
They
be
classified
as
peripheral
caused
disorders
upper
airways
or
muscles
involved
breathing
central
triggered
functional
deficits
important
located
brainstem
control.
Currently,
there
little
research
describing
these
disorders,
therefore,
no
well-established
knowledge
about
subject,
making
treatment
difficult.
In
review,
history
pathology
data
changes
obtained
thus
far
will
addressed.