Biology,
Journal Year:
2024,
Volume and Issue:
13(6), P. 372 - 372
Published: May 23, 2024
The
gut
microbiota
constitutes
a
complex
ecosystem
that
has
an
important
impact
on
host
health.
In
this
study,
genetically
engineered
zebrafish
with
inducible
nitric
oxide
synthase
(iNOS
or
NOS2)
knockout
were
used
as
model
to
investigate
the
effects
of
nos2a/nos2b
gene
single
and
nos2
double
intestinal
microbiome
composition
function.
Extensive
16S
rRNA
sequencing
revealed
substantial
changes
in
microbial
diversity
specific
taxonomic
abundances,
yet
it
did
not
affect
functional
structure
tissues.
Notably,
iNOS-deficient
demonstrated
decrease
Vibrio
species
increase
Aeromonas
species,
more
pronounced
observed
knockouts.
Further
transcriptomic
analysis
iNOS
indicated
significant
alterations
immune-related
metabolic
pathways,
including
complement
PPAR
signaling
pathways.
These
findings
underscore
crucial
interplay
between
genetics
microbiota,
indicating
plays
key
role
modulating
ecology,
immune
system,
responses.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
272, P. 116023 - 116023
Published: Jan. 30, 2024
An
in
vivo
model
is
necessary
for
toxicology.
This
review
analyzed
the
uses
of
zebrafish
(Danio
rerio)
toxicology
based
on
bibliometrics.
Totally
56,816
publications
about
from
2002
to
2023
were
found
Web
Science
Core
Collection,
with
Toxicology
as
top
6
among
all
disciplines.
Accordingly,
bibliometric
map
reveals
that
"toxicity"
has
become
a
hot
keyword.
It
further
most
common
exposure
types
include
acute,
chronic,
and
combined
exposure.
The
toxicological
effects
behavioral,
intestinal,
cardiovascular,
hepatic,
endocrine
toxicity,
neurotoxicity,
immunotoxicity,
genotoxicity,
reproductive
transgenerational
toxicity.
mechanisms
oxidative
stress,
inflammation,
autophagy,
dysbiosis
gut
microbiota.
toxicants
commonly
evaluated
by
using
nanomaterials,
arsenic,
metals,
bisphenol,
dioxin.
Overall,
provide
unique
well-accepted
investigate
mechanisms.
We
also
discussed
possible
ways
address
some
limitations
model,
such
combination
human
organoids
avoid
species
differences.
Molecular Medicine,
Journal Year:
2022,
Volume and Issue:
28(1)
Published: Dec. 1, 2022
Abstract
Gut
microbiota
plays
a
critical
role
in
the
maintenance
of
host
health.
As
low-cost
and
genetically
tractable
vertebrate
model,
zebrafish
have
been
widely
used
for
biological
research.
Zebrafish
humans
share
some
similarities
intestinal
physiology
function,
this
allows
to
be
surrogate
model
investigating
crosstalk
between
gut
host.
Especially,
features
such
as
high
fecundity,
external
fertilization,
early
optical
transparency.
These
enable
researchers
employ
fish
address
questions
not
easily
addressed
other
animal
models.
In
review,
we
described
intestine
structure
zebrafish.
Also,
summarized
methods
generating
gnotobiotic
factors
affecting
its
flora,
study
progress
functions
Finally,
discussed
limitations
challenges
studies.
summary,
review
established
that
is
an
attractive
research
tool
understand
mechanistic
insights
into
host-microbe
interaction.
Laboratory Animal Research,
Journal Year:
2025,
Volume and Issue:
41(1)
Published: Feb. 3, 2025
Abstract
Zebrafish
(
Danio
rerio
)
have
emerged
as
an
influential
model
for
studying
human
epithelial
pathology,
particularly
because
of
their
genetic
similarity
to
humans
and
unique
physiological
traits.
This
review
explores
the
structural
functional
homology
between
zebrafish
tissues
in
organs,
such
gastrointestinal
system,
liver,
kidneys.
possess
significant
cellular
with
mammals,
which
facilitates
investigation
various
diseases,
including
inflammatory
bowel
disease,
nonalcoholic
fatty
liver
polycystic
kidney
disease.
The
advantages
using
a
organism
include
rapid
external
development,
ease
manipulation,
advanced
imaging
capabilities,
allowing
real-time
observation
disease
processes.
However,
limitations
exist,
concerning
lack
organs
potential
incomplete
phenocopy
conditions.
Despite
these
challenges,
ongoing
research
adult
promises
enhance
our
understanding
mechanisms
regenerative
By
revealing
similarities
differences
cell
function
pathways,
this
highlights
value
translational
advancing
knowledge
health
developing
targeted
therapies.
Dietary
protein
absorption
in
neonatal
mammals
and
fishes
relies
on
the
function
of
a
specialized
conserved
population
highly
absorptive
lysosome
rich
enterocytes
(LREs).
The
gut
microbiome
has
been
shown
to
enhance
nutrients,
such
as
lipids,
by
intestinal
epithelial
cells.
However,
whether
is
also
affected
poorly
understood.
Here,
we
investigate
connections
between
microbes
zebrafish
gut.
Using
live
microscopy-based
quantitative
assays,
find
that
slow
pace
uptake
degradation
LREs.
While
do
not
affect
number
absorbing
LRE
cells,
lower
expression
endocytic
digestion
machinery
transgene
assisted
cell
isolation
single
RNA-sequencing,
characterize
all
cells
take
up
dietary
protein.
We
bacteria-sensing
metabolic
pathways
LREs,
some
secretory
types
share
components
with
custom-formulated
diets,
investigated
influence
diet
activity
microbiome.
Impaired
along
protein-deficient
diet,
alters
microbial
community
leads
increased
abundance
bacterial
genera
have
capacity
reduce
Together,
these
results
reveal
diet-dependent
reciprocal
interactions
LREs
regulate
absorption.
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(3), P. 539 - 539
Published: Feb. 27, 2025
This
article
reviews
the
scientific
literature
discussing
microbial
interactions
between
water
microbiota,
live
food
fish
larvae
immune
system
and
gut
biofilm
communities
in
rearing
systems
for
marine
larvae.
Fish
microbiota
is
first
line
of
defense
against
opportunistic
pathogens,
are
vulnerable
to
high
mortalities
during
weeks
after
hatching.
The
bacterial
colonization
a
dynamic
process
influenced
by
environmental
host-related
factors.
bacteria
transferred
from
eggs
can
influence
composition
early
stages
fish.
ingest
free-living
microorganisms
present
water,
as
drink
osmoregulation.
In
aquaculture
systems,
conventional
feeding–rearing
protocol
consists
zooplankton
(rotifers,
Artemia,
copepods).
These
organisms
filter-feeders.
Once
new
environment,
they
quickly
adopt
microflora
surrounding
water.
So,
similar
at
time
ingestion
biofilms
may
harbor
pathogenic
serve
reservoir
those
microbes,
which
colonize
column.
methods
applied
study
were
reviewed.
Dietary
protein
absorption
in
neonatal
mammals
and
fishes
relies
on
the
function
of
a
specialized
conserved
population
highly
absorptive
lysosome-rich
enterocytes
(LREs).
The
gut
microbiome
has
been
shown
to
enhance
nutrients,
such
as
lipids,
by
intestinal
epithelial
cells.
However,
whether
is
also
affected
poorly
understood.
Here,
we
investigate
connections
between
microbes
zebrafish
gut.
Using
live
microscopy-based
quantitative
assays,
find
that
slow
pace
uptake
degradation
LREs.
While
do
not
affect
number
absorbing
LRE
cells,
lower
expression
endocytic
digestion
machinery
transgene-assisted
cell
isolation
single
RNA-sequencing,
characterize
all
cells
take
up
dietary
protein.
We
bacteria-sensing
metabolic
pathways
LREs,
some
secretory
types
share
components
with
custom-formulated
diets,
investigated
influence
diet
activity
microbiome.
Impaired
along
protein-deficient
diet,
alters
microbial
community
leads
an
increased
abundance
bacterial
genera
have
capacity
reduce
Together,
these
results
reveal
diet-dependent
reciprocal
interactions
LREs
regulate
absorption.