Journal of Translational Medicine,
Год журнала:
2024,
Номер
22(1)
Опубликована: Окт. 17, 2024
Although
numerous
studies
have
shown
that
bariatric
surgery
results
in
sustained
weight
loss
and
modifications
gut
microbiota
composition
cognitive
function,
the
exact
underlying
mechanisms
are
unclear.
This
study
aimed
to
investigate
effects
of
on
function
through
microbiota-gut-brain
axis
(MGBA).
Abstract
Background
An
increasing
number
of
studies
investigate
various
human
microbiotas
and
their
roles
in
the
development
diseases,
maintenance
health
states,
balanced
signaling
towards
brain.
Current
data
demonstrate
that
nasal
microbiota
contains
a
unique
highly
variable
array
commensal
bacteria
opportunistic
pathogens.
However,
we
need
to
understand
how
harness
current
knowledge,
enrich
with
beneficial
microorganisms,
prevent
pathogenic
developments.
Results
In
this
study,
have
obtained
nasal,
nasopharyngeal,
bronchoalveolar
lavage
fluid
samples
from
healthy
volunteers
patients
suffering
chronic
respiratory
tract
diseases
for
full-length
16
S
rRNA
sequencing
analysis
using
Oxford
Nanopore
Technologies.
Demographic
clinical
were
collected
simultaneously.
The
microbiome
97
people
Lithuania
inflammatory
disease
revealed
represents
upper
airways
well.
Conclusions
was
enriched
pathogens,
which
could
be
used
as
indicators
conditions.
addition,
observed
contained
several
plant-
bee-associated
species,
suggesting
possibility
enriching
via
such
exposures
when
needed.
These
candidate
probiotics
should
investigated
modulating
effects
on
airway
lung
epithelia,
immunogenic
properties,
neurotransmitter
content,
maintaining
nose-brain
interrelationships.
Applied and Environmental Microbiology,
Год журнала:
2024,
Номер
90(2)
Опубликована: Янв. 19, 2024
Social
bees
are
frequently
exposed
to
pesticides
when
foraging
on
nectar
and
pollen.
Recent
research
has
shown
that
pesticide
exposure
not
only
impacts
social
bee
host
health
but
can
also
alter
the
community
structure
of
gut
microbiotas.
However,
most
pesticide-bee
microbiota
interactions
been
conducted
in
honey
bees;
bumble
bees,
native
North
American
pollinators,
have
received
less
attention
and,
due
differences
their
ecology,
may
be
certain
for
shorter
durations
than
bees.
Here,
we
examine
how
fungicide
chlorothalonil
a
short,
field-realistic
duration
alters
fecal
microbiotas
(used
as
proxy
microbiotas)
performance.
We
expose
small
groups
Abstract
Among
the
most
severe
honeybee
diseases,
American
and
European
foulbroods
caused
by
Paenibacillus
larvaeMelissococcus
plutonius,
respectively
pose
a
significant
threat
to
larval
health
colony
survival.
Due
lack
of
safe
effective
treatments,
interest
is
growing
in
use
beneficial
bacterial
supplements
as
promising
alternative
antibiotics.
This
study
evaluated
probiotic
postbiotic
potential
selected
strains
against
foulbrood
pathogens.
An
initial
screening
25
for
anti-foulbrood
activity
led
selection
active
candidates
further
investigation.
The
inhibitory
effect
their
cell-free
supernatants
(CFS)
was
assessed
mode
action
investigated.
properties
were
using
P.
larvae-infected
larvae
reared
under
laboratory
conditions.
Five
lactic
acid
bacteria
exhibited
strong
antagonistic
one
or
both
pathogens,
CFS
displayed
effects.
Notably,
Lactobacillus
crispatusLactiplantibacillus
plantarum
completely
inhibited
at
dose
12.5%
(v/v).
Further
characterisation
these
CFS,
suggested
bacteriostatic
effect,
mainly
attributed
organic
acids.
In
vivo
assays
demonstrated
increase
survival
when
supplemented
with
live
L.
plantarum,
whereas
treatments
failed
rescue
infected
larvae.
These
findings
highlight
postbiotic-based
strategies
sustainable
alternatives
managing
beekeeping.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Июль 12, 2024
Objective
Parkinson’s
disease
(PD)
is
possibly
caused
by
genetic
factors,
environmental
and
gut
microbiota
dysbiosis.
This
study
aims
to
explore
whether
the
contributes
behavior
abnormalities
of
PD.
Methods
We
transplanted
from
patients
with
PD
or
healthy
controls
(HC)
into
microbiota-free
honeybees.
also
established
two
more
groups,
namely
rotenone
(ROT)
group,
in
which
PD-like
symptoms
honeybees
were
induced
rotenone,
conventional
(CV)
colonized
microbiota.
The
climbing
assay
was
performed
assess
motor
capabilities
Histopathological
examination
conducted
evaluate
integrity
mucosa.
Tyrosine
hydroxylase
(TH)
gene
expression
levels
dopamine
(DA)
concentrations
brain
examined.
Additionally,
metagenomics
full-length
16S
rRNA
analyses
identify
alterations
profiles,
both
Results
Honeybees
ROT
groups
exhibited
slower
speeds,
downregulated
TH
expression,
impaired
barriers.
Both
HC
successfully
harbored
a
portion
corresponding
human
donors,
differences
microbial
composition
identified.
Morganella
morganii
Erysipelatoclostridium
ramosum
significantly
increased
relative
abundance
while
Dorea
longicatena
,
Collinsella
aerofaciens
Lactococcus
garvieae
Holdemanella
biformis
Gemmiger
formicilis
Blautia
obeum
showed
group.
Functional
predictions
communities
group
indicated
an
synthesis
hydrogen
sulfide
methane.
Conclusion
A
novel
model
patients.
linked
PD-related
behaviors
altered
microbiota,
highlighting
potential
microbiota-brain
axis
involvement
pathogenesis.
previously
unrecognized
associations
pathways
related
methane
have
been
suggested
as
contributors
development
PD,
our
research
further
supports
this
hypothesis.
Current Opinion in Insect Science,
Год журнала:
2024,
Номер
65, С. 101233 - 101233
Опубликована: Июль 15, 2024
Social
insects
exhibit
a
high
degree
of
intraspecific
behavioral
variation.
Moreover,
they
often
harbor
specialized
microbial
communities
in
their
gut.
Recent
studies
suggest
that
these
two
characteristics
social
are
interlinked:
insect
phenotypes
affect
gut
microbiota
composition,
partly
through
exposure
to
different
environments
and
diet,
return,
the
has
been
shown
influence
behavior.
Here,
we
discuss
bidirectional
relationship
existing
between
variation
composition
insects.
Abstract
Background
Despite
being
among
the
most
abundant
biological
entities
on
earth,
bacteriophage
(phage)
remain
an
understudied
component
of
host-associated
systems.
One
limitation
to
studying
phage
is
lack
consensus
methods
for
sampling
communities.
Here,
we
compare
paired
total
metagenomes
and
viral
size
fraction
(viromes)
as
investigating
dsDNA
communities
associated
with
GI
tract
two
bee
species:
European
honey
Apis
mellifera
eastern
bumble
Bombus
impatiens
.
Results
We
find
that
viromes
successfully
enriched
phage,
thereby
increasing
recovery,
but
only
in
bees.
In
contrast,
bees,
recovered
greater
diversity.
Across
both
species,
better
sampled
low
occupancy
while
were
biased
towards
temperate
phage.
Additionally,
many
captured
by
absent
altogether
from
viromes.
Comparing
between
show
commercially
reared
bees
are
significantly
reduced
diversity
compared
likely
reflecting
differences
bacterial
titer
a
broader
context,
these
results
highlight
complementary
nature
targeted
viromes,
especially
when
applied
environments.
Conclusions
Overall,
suggest
studies
interested
assessing
should
consider
using
approaches.
However,
given
constraints
virome
sampling,
may
serve
sample
understanding
they
will
preferentially
dominant