Metabolic Reprogramming in Gut Microbiota Exposed to Polystyrene Microplastics
Jinhua Chi,
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Jeffrey Patterson,
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Yan Jin
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et al.
Biomedicines,
Journal Year:
2025,
Volume and Issue:
13(2), P. 446 - 446
Published: Feb. 12, 2025
Background:
Microplastics
(MPs)
are
small
plastic
fragments
with
diameters
less
than
5
mm
in
size
and
prevalent
everyday
essentials
consumables.
Large
global
production
has
now
led
to
a
flooding
of
MPs
our
natural
environment.
Due
their
detrimental
impacts
on
the
planet's
ecosystems
potentially
health,
have
emerged
as
significant
public
health
concern.
In
this
pilot
study,
we
hypothesize
that
exposure
will
negatively
affect
gut
microbiota
composition
function,
which
metabolic
reprogramming
plays
an
important
role.
Methods:
Using
vitro
experiments,
three
bacterial
strains
(Escherichia
coli
MG1655,
Nissle
1917,
Lactobacillus
rhamnosus)
were
selected
investigate
exposure.
The
individually
cultured
anaerobic
chamber
exposed
1
µm
polystyrene
at
various
concentrations
(0,
10,
20,
50,
100,
500
µg/mL)
culture
medium.
Results:
reduced
growth
all
dose-dependent
manner.
Liquid
chromatography
mass
spectrometry
(LC-MS)-based
untargeted
metabolomics
revealed
differences
multiple
pathways,
such
sulfur
metabolism
amino
sugar
nucleotide
metabolism.
addition,
extracted
from
C57BL/6
mice,
16S
rRNA
sequencing
results
showed
upregulation
Lactobacillales
reduction
Erysipelotrichales
due
Furthermore,
targeted
corroborated
alterations
microbial
tryptophan
energy
producing
glycolysis/gluconeogenesis
pentose
phosphate
pathway.
Conclusions:
These
findings
provide
evidence
causes
comprehensive
changes
healthy
microbiota,
may
also
insights
into
mechanistic
effects
humans.
Language: Английский
Ecological Impact of Invasive Fish Species on Species and Ichthyocenotic Associations in Freshwater Aquatic Ecosystems of Romania
Nicolai Crăciun,
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Lucian-Dorin Hanganu,
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Isabela Sadîca
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et al.
Published: Feb. 18, 2025
Language: Английский
Impact of Polyvinyl Chloride (PVC) powder ingestion on growth rate and length of Oreochromis niloticus - A Preliminary Study
Isabela Sadîca,
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Monica Matei,
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Mădălina Boboc
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et al.
E3S Web of Conferences,
Journal Year:
2024,
Volume and Issue:
589, P. 03009 - 03009
Published: Jan. 1, 2024
Aquatic
ecosystems
face
increasing
contamination
from
plastic
pollutants,
with
Polyvinyl
Chloride
(PVC)
being
one
of
the
most
prevalent.
This
study
investigates
impact
ingested
PVC
powder
particles
on
body
weight
and
length
O.
niloticus
(Nile
tilapia),
a
commercially
important
fish
species
common
inhabitant
freshwater
systems
worldwide.
Groups
Nile
tilapia
specimens
were
subjected
to
different
amounts
particles,
specifically
500
ppm
1000
ppm.
Specimens
water
parameters
meticulously
observed
for
40
days.
The
control
groups
provided
diet
that
did
not
contain
any
PVC.
After
exposure,
measured
every
two
weeks
compared
between
experimental
groups.
Preliminary
results
suggest
significant
correlation
ingestion
alterations
in
growth
tilapia.
Fish
exposed
higher
concentrations
exhibited
reduced
These
findings
indicate
potential
negative
pollution
development
aquatic
organisms,
highlighting
urgent
need
effective
strategies
mitigate
ecosystems.
Language: Английский
A Diverse Vibrio Community in Ría de Vigo (Northwestern Spain)
Xiaoyun Huang,
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Keyi Huang,
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Sihan Chen
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et al.
Biology,
Journal Year:
2024,
Volume and Issue:
13(12), P. 986 - 986
Published: Nov. 28, 2024
The
genus
Vibrio
is
genetically
and
ecologically
diverse,
resulting
in
severe
economic
losses
aquacultural
macroalgae
animals.
Studies
on
vibrios
will
contribute
to
the
conservation
of
aquatic
aquaculture
Ría
de
Vigo
(Spain),
which
famous
for
its
shellfish
farming
activity.
However,
limited
research
focused
diversity
distribution
spp.
has
been
reported.
Here,
a
slight
increase
abundance
was
recorded
from
inshore
open
sea
by
quantitative
PCR
(qPCR).
Vibrios
were
more
abundant
free-living
(FL)
than
particle-associated
(PA)
fraction,
showing
that
FL
might
be
their
preferential
lifestyle.
Photobacterium
piscicola,
japonicus
harveyi,
are
serious
pathogens
fish
invertebrates
mariculture,
found
dominant
species
across
all
samples
high-throughput
sequencing
analyses
mainly
affected
stochastic
processes.
More
colony-forming
units
at
16
°C
(18
species)
28
(6
species),
five
isolates
(5.05%
total
isolates)
showed
low
16S
rRNA
gene
similarity
(<98.65%)
known
strains.
results
indicate
culture
conditions
closer
situ
temperature
may
help
isolate
species.
Our
findings
local
research,
providing
background
information
novel
insights
management
pathogen
prevention
aquaculture,
studies
should
focus
acquire
or
pathogenic
microbes
future.
Language: Английский