Diagnosis
and
treatment
of
circadian
rhythm
sleep-wake
disorders
both
require
assessment
phase
the
brain’s
pacemaker.
The
gold-standard
univariate
method
is
based
on
collection
a
24-hr
time
series
plasma
melatonin,
suprachiasmatic
nucleus-driven
pineal
hormone.
We
developed
validated
multivariate
whole-blood
mRNA-based
predictor
melatonin
which
requires
few
samples.
Transcriptome
data
were
collected
under
normal,
sleep-deprivation
abnormal
sleep-timing
conditions
to
assess
robustness
predictor.
Partial
least
square
regression
(PLSR),
applied
transcriptome,
identified
set
100
biomarkers
primarily
related
glucocorticoid
signaling
immune
function.
Validation
showed
that
PLSR-based
predictors
outperform
published
blood-derived
predictors.
When
given
one
sample
as
input,
R2
predicted
vs
observed
was
0.74,
whereas
for
two
samples
taken
12
hr
apart,
0.90.
This
blood
transcriptome-based
model
enables
from
Biology,
Journal Year:
2019,
Volume and Issue:
8(1), P. 13 - 13
Published: March 11, 2019
The
past
twenty
years
have
witnessed
the
most
remarkable
breakthroughs
in
our
understanding
of
molecular
and
cellular
mechanisms
that
underpin
circadian
(approximately
one
day)
time-keeping.
Across
model
organisms
diverse
taxa:
cyanobacteria
(
Nutrients,
Journal Year:
2021,
Volume and Issue:
13(1), P. 159 - 159
Published: Jan. 6, 2021
Glucose
levels
in
blood
must
be
constantly
maintained
within
a
tight
physiological
range
to
sustain
anabolism.
Insulin
regulates
glucose
homeostasis
via
its
effects
on
production
from
the
liver
and
kidneys
disposal
peripheral
tissues
(mainly
skeletal
muscle).
Blood
of
are
regulated
simultaneously
by
insulin-mediated
rates
(and
kidneys)
removal
muscle;
adipose
tissue
is
key
partner
this
scenario,
providing
nonesterified
fatty
acids
(NEFA)
as
an
alternative
fuel
for
muscle
when
depleted.
During
sleep
at
night,
gradual
development
insulin
resistance,
due
growth
hormone
cortisol
surges,
ensures
that
will
normal
by:
(a)
switching
NEFA
oxidation
(b)
modulating
liver/kidneys.
After
meals,
several
mechanisms
(sequence/composition
gastric
emptying/intestinal
absorption,
gastrointestinal
hormones,
hyperglycemia
mass
action
effects,
insulin/glucagon
secretion/action,
de
novo
lipogenesis
disposal)
operate
concert
optimal
regulation
postprandial
fluctuations.
The
contribution
critical.
preferentially
used
dispose
over
50%
ingested
restrict
acute
increases
bloodstream
after
thus
protecting
circulation
adverse
marked
hyperinsulinemia.
Physiological and Biochemical Zoology,
Journal Year:
2021,
Volume and Issue:
95(1), P. 82 - 112
Published: Nov. 4, 2021
AbstractTrade-offs
and
constraints
are
inherent
to
life,
studies
of
these
phenomena
play
a
central
role
in
both
organismal
evolutionary
biology.
Trade-offs
can
be
defined,
categorized,
studied
at
least
six,
not
mutually
exclusive,
ways.
(1)
Allocation
caused
by
limited
resource
(e.g.,
energy,
time,
space,
essential
nutrients),
such
that
increasing
allocation
one
component
necessarily
requires
decrease
another
(if
only
two
components
involved,
this
is
referred
as
the
Y-model,
e.g.,
energy
devoted
size
versus
number
offspring).
(2)
Functional
conflicts
occur
when
features
enhance
performance
task
relative
lengths
in-levers
out-levers,
force-velocity
trade-offs
related
muscle
fiber
type
composition).
(3)
Shared
biochemical
pathways,
often
involving
integrator
molecules
hormones,
neurotransmitters,
transcription
factors),
simultaneously
affect
multiple
traits,
with
some
effects
being
beneficial
for
or
more
Darwinian
fitness
survival,
age
first
reproduction,
fecundity)
others
detrimental.
(4)
Antagonistic
pleiotropy
describes
genetic
variants
increase
(or
lower-level
trait)
while
decreasing
another.
(5)
Ecological
circumstances
selective
regime)
may
impose
trade-offs,
foraging
behavior
increases
availability
yet
also
decreases
survival.
(6)
Sexual
selection
lead
elaboration
(usually
male)
secondary
sexual
characters
improve
mating
success
but
handicap
survival
and/or
energetic
costs
reduce
other
components.
Empirical
search
negative
correlations
between
traits
expected
outcomes
will
generally
inadequate
if
than
involved
especially
complex
physiological
networks
interacting
traits.
Moreover,
populations
experiencing
harsh
environmental
conditions
challenges
extremes
phenotypic
distributions,
among
individuals
species
have
exceptional
athletic
abilities.
(partially)
circumvented
through
various
compensatory
mechanisms,
depending
on
timescale
ranging
from
acute
evolutionary.
Going
forward,
pluralistic
view
constraints,
combined
integrative
analyses
cross
levels
biological
organization
traditional
boundaries
disciplines,
study
Frontiers in Endocrinology,
Journal Year:
2023,
Volume and Issue:
14
Published: June 19, 2023
Cognitive
function
in
humans
depends
on
the
complex
and
interplay
between
multiple
body
systems,
including
hypothalamic-pituitary-adrenal
(HPA)
axis.
The
gut
microbiota,
which
vastly
outnumbers
human
cells
has
a
genetic
potential
that
exceeds
of
genome,
plays
crucial
role
this
interplay.
microbiota-gut-brain
(MGB)
axis
is
bidirectional
signalling
pathway
operates
through
neural,
endocrine,
immune,
metabolic
pathways.
One
major
neuroendocrine
systems
responding
to
stress
HPA
produces
glucocorticoids
such
as
cortisol
corticosterone
rodents.
Appropriate
concentrations
are
essential
for
normal
neurodevelopment
function,
well
cognitive
processes
learning
memory,
studies
have
shown
microbes
modulate
throughout
life.
Stress
can
significantly
impact
MGB
via
other
Animal
research
advanced
our
understanding
these
mechanisms
pathways,
leading
paradigm
shift
conceptual
thinking
about
influence
microbiota
health
disease.
Preclinical
trials
currently
underway
determine
how
animal
models
translate
humans.
In
review
article,
we
summarize
current
knowledge
relationship
axis,
cognition,
provide
an
overview
main
findings
conclusions
broad
field.
Cells,
Journal Year:
2022,
Volume and Issue:
11(12), P. 1979 - 1979
Published: June 20, 2022
Monocytes
and
macrophages
are
central
players
of
the
innate
immune
response
play
a
pivotal
role
in
regulation
inflammation.
Thereby,
they
actively
participate
all
phases
response,
from
initiating
inflammation
triggering
adaptive
through
to
clearance
cell
debris
resolution
In
this
review,
we
described
mechanisms
monocyte
macrophage
adaptation
rapidly
changing
microenvironmental
conditions
discussed
different
forms
polarization
depending
on
environmental
cues
or
pathophysiological
condition.
Therefore,
special
focus
was
placed
tight
pro-
anti-inflammatory
diverse
functions
S100A8/S100A9
proteins
scavenger
receptor
CD163
were
highlighted,
respectively.
We
paid
attention
function
under
pathological
conditions.
Endocrine Reviews,
Journal Year:
2023,
Volume and Issue:
44(6), P. 975 - 1011
Published: May 30, 2023
Abstract
It
is
estimated
that
2%
to
3%
of
the
population
are
currently
prescribed
systemic
or
topical
glucocorticoid
treatment.
The
potent
anti-inflammatory
action
glucocorticoids
deliver
therapeutic
benefit
not
in
doubt.
However,
side
effects
associated
with
their
use,
including
central
weight
gain,
hypertension,
insulin
resistance,
type
2
diabetes
(T2D),
and
osteoporosis,
often
collectively
termed
iatrogenic
Cushing's
syndrome,
a
significant
health
economic
burden.
precise
cellular
mechanisms
underpinning
differential
drive
desirable
undesirable
still
completely
understood.
Faced
unmet
clinical
need
limit
glucocorticoid-induced
adverse
alongside
ensuring
preservation
actions,
several
strategies
have
been
pursued.
coprescription
existing
licensed
drugs
treat
incident
can
be
effective,
but
data
examining
prevention
limited.
Novel
selective
receptor
agonists
modulators
designed
aim
specifically
selectively
activate
responses
based
upon
interaction
receptor.
Several
these
compounds
trials
evaluate
efficacy.
More
recently,
exploiting
tissue-specific
metabolism
through
isoforms
11β-hydroxysteroid
dehydrogenase
has
shown
early
potential,
although
from
any
treatment
maximize
while
minimizing
risk,
within
this
review
we
define
effect
profile
use
current
developing
preserve