Cell Reports,
Journal Year:
2020,
Volume and Issue:
33(2), P. 108238 - 108238
Published: Oct. 1, 2020
Patients
with
alcohol
use
disorder
(AUD)
present
important
emotional,
cognitive,
and
social
impairments.
The
gut
microbiota
has
been
recently
shown
to
regulate
brain
functions
behavior
but
convincing
evidence
of
its
role
in
AUD
is
lacking.
Here,
we
show
that
dysbiosis
associated
metabolic
alterations
affect
behavioral
(depression,
sociability)
neurobiological
(myelination,
neurotransmission,
inflammation)
processes
involved
addiction.
By
transplanting
the
from
patients
mice,
point
out
production
ethanol
by
specific
bacterial
genera
reduction
lipolysis
are
a
lower
hepatic
synthesis
β-hydroxybutyrate
(BHB),
which
thereby
prevents
neuroprotective
effect
BHB.
We
confirm
these
results
detoxified
patients,
observe
persisting
feces
as
well
correlations
among
low
plasma
BHB
levels
impairments,
depression,
or
white
matter
alterations.
Nature,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Biological
ageing
can
be
defined
as
a
gradual
loss
of
homeostasis
across
various
aspects
molecular
and
cellular
function1,2.
Mammalian
brains
consist
thousands
cell
types3,
which
may
differentially
susceptible
or
resilient
to
ageing.
Here
we
present
comprehensive
single-cell
RNA
sequencing
dataset
containing
roughly
1.2
million
high-quality
transcriptomes
brain
cells
from
young
adult
aged
mice
both
sexes,
regions
spanning
the
forebrain,
midbrain
hindbrain.
High-resolution
clustering
all
results
in
847
clusters
reveals
at
least
14
age-biased
that
are
mostly
glial
types.
At
broader
subclass
supertype
levels,
find
age-associated
gene
expression
signatures
provide
list
2,449
unique
expressed
genes
(age-DE
genes)
for
many
neuronal
non-neuronal
Whereas
most
age-DE
specific
types,
observe
common
with
including
decrease
related
structure
function
neuron
major
astrocyte
types
mature
oligodendrocytes,
an
increase
immune
function,
antigen
presentation,
inflammation,
motility
some
vascular
Finally,
demonstrate
greatest
sensitivity
concentrated
around
third
ventricle
hypothalamus,
tanycytes,
ependymal
cells,
certain
arcuate
nucleus,
dorsomedial
nucleus
paraventricular
express
canonically
energy
homeostasis.
Many
these
response.
These
findings
suggest
hypothalamus
hub
mouse
brain.
Overall,
this
study
systematically
delineates
dynamic
landscape
cell-type-specific
transcriptomic
changes
associated
normal
will
serve
foundation
investigation
functional
interaction
disease.
A
inform
into
Proceedings of the National Academy of Sciences,
Journal Year:
2019,
Volume and Issue:
116(22), P. 11028 - 11037
Published: May 9, 2019
Significance
Neuronal
mitochondria
are
crucial
organelles
that
regulate
bioenergetics
and
also
modulate
survival
function
under
environmental
challenges.
Here,
we
show
the
neurotransmitter
serotonin
(5-HT)
plays
an
important
role
in
making
of
new
(mitochondrial
biogenesis)
cortical
neurons,
through
5-HT
2A
receptor
via
master
regulators
mitochondrial
biogenesis,
SIRT1
PGC-1α.
Mitochondrial
is
enhanced
by
5-HT,
increasing
cellular
respiration
ATP,
energy
currency
cell.
We
found
reduces
reactive
oxygen
species
exerts
potent
neuroprotective
action
neurons
challenged
with
stress,
effect
requires
SIRT1.
These
findings
highlight
a
for
effects
facilitation
stress
adaptation
identify
drug
targets
to
ameliorate
dysfunction
neurons.
Cell Reports,
Journal Year:
2020,
Volume and Issue:
33(2), P. 108238 - 108238
Published: Oct. 1, 2020
Patients
with
alcohol
use
disorder
(AUD)
present
important
emotional,
cognitive,
and
social
impairments.
The
gut
microbiota
has
been
recently
shown
to
regulate
brain
functions
behavior
but
convincing
evidence
of
its
role
in
AUD
is
lacking.
Here,
we
show
that
dysbiosis
associated
metabolic
alterations
affect
behavioral
(depression,
sociability)
neurobiological
(myelination,
neurotransmission,
inflammation)
processes
involved
addiction.
By
transplanting
the
from
patients
mice,
point
out
production
ethanol
by
specific
bacterial
genera
reduction
lipolysis
are
a
lower
hepatic
synthesis
β-hydroxybutyrate
(BHB),
which
thereby
prevents
neuroprotective
effect
BHB.
We
confirm
these
results
detoxified
patients,
observe
persisting
feces
as
well
correlations
among
low
plasma
BHB
levels
impairments,
depression,
or
white
matter
alterations.