bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 13, 2023
The
socially
monogamous
prairie
vole
(
Microtus
ochrogaster
)
and
promiscuous
meadow
pennsylvanicus
are
closely
related,
but
only
voles
display
long-lasting
pair
bonds,
biparental
care,
selective
aggression
towards
unfamiliar
individuals
after
bonding.
These
social
behaviors
in
mammals
largely
mediated
by
steroid
hormone
signaling
the
behavior
network
(SBN)
of
brain.
Hormone
receptors
reproducible
markers
sex
differences
that
can
provide
more
information
than
anatomy
alone,
even
be
at
odds
with
anatomical
dimorphisms.
We
reasoned
associated
monogamy
may
emerge
part
from
unique
expression
patterns
this
species,
these
would
similar
across
males
females
or
laboratory
mouse.
To
obtain
insight
into
developing
brain,
we
assessed
estrogen
receptor
alpha
Esr1
),
beta
Esr2
androgen
Ar
within
SBN,
using
situ
hybridization
postnatal
day
14
mice,
meadow,
voles.
found
species-specific
hippocampus
ventromedial
hypothalamus,
as
well
species
bias
principal
nucleus
bed
stria
terminalis.
findings
suggest
observed
gonadal
underlie
behaviors.
Frontiers in Endocrinology,
Journal Year:
2024,
Volume and Issue:
15
Published: May 13, 2024
Vasopressin
and
oxytocin
are
well
known
evolutionarily
ancient
modulators
of
social
behavior.
The
distribution
relative
densities
vasopressin
receptors
to
modulate
the
sensitivity
these
signaling
molecules.
Comparative
work
is
needed
determine
which
neural
networks
have
been
conserved
modified
over
evolutionary
time,
behaviors
commonly
modulated
by
nonapeptide
signaling.
To
this
end,
we
used
receptor
autoradiography
1a
in
Southern
giant
pouched
rat
(
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 15, 2024
There
is
much
interest
in
targeting
the
activity
oxytocin
system
to
regulate
social
bonding.
However,
studies
with
exogenous
administration
of
face
caveats
its
low
stability,
poor
brain
permeability
and
insufficient
receptor
specificity.
The
use
a
small-molecule
receptor-specific
agonist
could
overcome
these
caveats.
Prior
testing
potential
effects
brain-penetrant
clinical
settings,
it
important
assess
how
such
an
would
affect
bonds
animal
models.
facultatively
monogamous
prairie
voles
(
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 13, 2023
The
socially
monogamous
prairie
vole
(
Microtus
ochrogaster
)
and
promiscuous
meadow
pennsylvanicus
are
closely
related,
but
only
voles
display
long-lasting
pair
bonds,
biparental
care,
selective
aggression
towards
unfamiliar
individuals
after
bonding.
These
social
behaviors
in
mammals
largely
mediated
by
steroid
hormone
signaling
the
behavior
network
(SBN)
of
brain.
Hormone
receptors
reproducible
markers
sex
differences
that
can
provide
more
information
than
anatomy
alone,
even
be
at
odds
with
anatomical
dimorphisms.
We
reasoned
associated
monogamy
may
emerge
part
from
unique
expression
patterns
this
species,
these
would
similar
across
males
females
or
laboratory
mouse.
To
obtain
insight
into
developing
brain,
we
assessed
estrogen
receptor
alpha
Esr1
),
beta
Esr2
androgen
Ar
within
SBN,
using
situ
hybridization
postnatal
day
14
mice,
meadow,
voles.
found
species-specific
hippocampus
ventromedial
hypothalamus,
as
well
species
bias
principal
nucleus
bed
stria
terminalis.
findings
suggest
observed
gonadal
underlie
behaviors.