Animals,
Journal Year:
2023,
Volume and Issue:
13(4), P. 606 - 606
Published: Feb. 9, 2023
Microplastics
(MPs)
are
pollutants
widely
distributed
in
aquatic
ecosystems.
MPs
introduced
mainly
by
ingestion
acting
locally
or
organs
far
from
the
gastroenteric
tract.
MPs-induced
health
consequences
for
fish
species
still
need
to
be
fully
understood.
We
aimed
investigate
effects
of
subchronic
oral
exposure
polystyrene
microplastics
(PS-MPs)
(1-20
μm)
gilthead
seabreams
(Sparus
aurata)
used
as
experimental
model.
studied
detrimental
impact
PS-MPs
(25
and
250
mg/kg
b.w./day)
on
redox
balance
antioxidant
status
intestine
using
histological
analysis
molecular
techniques.
The
research
goal
was
examine
anterior
(AI)
posterior
(PI)
tracts,
characterized
morphological
functional
differences.
caused
an
increase
reactive
oxygen
nitrosylated
proteins
both
well
augmented
malondialdehyde
production
PI.
also
differently
affected
gene
expression
enzymes
(i.e.,
superoxide
dismutase,
catalase,
glutathione
reductase).
Moreover,
increased
up-regulation
protective
heat
shock
(HSPs)
hsp70
hsp90)
observed
Our
findings
demonstrate
that
responsible
oxidative/nitrosative
stress
alterations
detoxifying
defense
system
responses
with
differences
AI
PI
seabreams.
Environment International,
Journal Year:
2023,
Volume and Issue:
174, P. 107899 - 107899
Published: March 27, 2023
Nanoplastics
(NPs)
are
increasingly
perceived
as
an
emerging
threat
to
terrestrial
environments,
but
the
adverse
impacts
of
NPs
on
soil
fauna
and
mechanisms
behind
these
negative
outcomes
remain
elusive.
Here,
a
risk
assessment
was
conducted
model
organism
(earthworm)
from
tissue
cell.
Using
palladium-doped
polystyrene
NPs,
we
quantitatively
measured
nanoplastic
accumulation
in
earthworm
investigated
its
toxic
effects
by
combining
physiological
with
RNA-Seq
transcriptomic
analyses.
After
42-day
exposure,
accumulated
up
15.9
143.3
mg
kg-1
for
low
(0.3
kg-1)
high
(3
dose
groups,
respectively.
retention
led
decrease
antioxidant
enzyme
activity
reactive
oxygen
species
(O2-
H2O2),
which
reduced
growth
rate
21.3
%-50.8
%
caused
pathological
abnormalities.
These
were
enhanced
positively
charged
NPs.
Furthermore,
observed
that
irrespective
surface
charge,
after
2
h
gradually
internalized
coelomocytes
(∼0.12
μg
per
cell)
mainly
amassed
at
lysosomes.
Those
agglomerations
stimulated
lysosomal
membranes
lose
stability
even
rupture,
resulting
impeded
autophagy
process
cellular
clearance,
eventually
coelomocyte
death.
In
comparison
negatively
nanoplastics,
exerted
83
higher
cytotoxicity.
Our
findings
provide
better
understanding
how
posed
harmful
have
important
implications
evaluating
ecological
Cambridge Prisms Plastics,
Journal Year:
2024,
Volume and Issue:
2
Published: Jan. 1, 2024
Abstract
Mitochondria
are
unique
organelles
to
perform
critical
functions
such
as
energy
production,
lipid
oxidation,
calcium
homeostasis,
and
steroid
hormone
synthesis
in
eukaryotic
cells.
The
proper
functioning
of
mitochondria
is
crucial
for
cellular
survival,
bioenergetics.
Mitochondrial
structure
function
maintained
by
the
mitochondrial
quality
control
system,
which
consists
processes
biogenesis,
dynamics
(fusion/fission),
mitophagy,
unfolded
protein
response
UPR
MT
.
dysfunction
and/or
damage
associated
with
initiation
progression
several
human
diseases,
including
neurodegenerative,
cardiovascular,
age-related
diabetes,
cancer.
Environmental
stress
contaminants
may
exacerbate
sensitivity
causes
dysfunction.
There
growing
evidence
about
impact
nanoplastics
(NPs)
microplastics
(MPs)
on
health
function.
MPs/NPs
were
reported
trigger
oxidative
reactive
oxygen
species
eventually
change
membrane
potential.
can
cross
through
biological
barriers
body
be
internalized
cells,
potentially
altering
dynamics,
bioenergetics,
signaling
pathways,
thus
impacting
metabolism
This
review
states
effects
homeostasis
well
apoptosis
discussed.
npj Parkinson s Disease,
Journal Year:
2025,
Volume and Issue:
11(1)
Published: Jan. 8, 2025
Abstract
The
risk
of
Parkinson’s
disease
(PD)
associated
with
farming
has
received
considerable
attention,
in
particular
for
pesticide
exposure.
However,
data
on
PD
specific
activities
is
lacking.
We
aimed
to
explore
whether
exhibited
a
higher
than
others
among
the
entire
French
farm
manager
(FM)
population.
A
secondary
analysis
real-world
administrative
insurance
claim
and
electronic
health/medical
records
(TRACTOR
project)
was
conducted
estimate
26
using
mining.
cases
were
identified
through
chronic
declarations
antiparkinsonian
drug
claims.
There
8845
1,088,561
FMs.
highest-risk
group
included
FMs
engaged
pig
farming,
cattle
truck
fruit
arboriculture,
crop
mean
hazard
ratios
(HRs)
ranging
from
1.22
1.67.
lowest-risk
all
involving
horses
small
animals,
as
well
gardening,
landscaping
reforestation
companies
(mean
HRs:
0.48–0.81).
Our
findings
represent
preliminary
work
that
suggests
potential
involvement
occupational
factors
related
onset
development.
Future
research
focusing
farmers
high-risk
will
allow
uncover
by
better
characterizing
exposome,
which
could
improve
surveillance
farmers.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
881, P. 163486 - 163486
Published: April 15, 2023
Contaminants
of
emerging
concern
(CECs)
present
a
new
threat
to
the
marine
environment,
and
it
is
vital
understand
interactions
possible
toxicity
CEC
mixtures
once
they
reach
ocean.
CECs-such
as
metal
nanoparticles,
nanoplastics,
pharmaceuticals-are
groups
contaminants
some
which
have
been
individually
evaluated,
though
their
are
still
not
fully
understood.
To
ensure
healthy
prosperous
future
generation,
successful
reproduction
key:
however,
if
hindered,
population
dynamics
may
be
at
danger
leading
negative
impact
on
biodiversity.
This
study
aimed
effects
silver
(20
nm
nAg,
10
μg/L),
polystyrene
nanoparticles
(50
nPS,
5-fluorouracil
(5FU,
ng/L)
mixture
(10
μg/L
nPS
+
nAg
+10
ng/L
5FU)
in
gonads
Mytilus
galloprovincialis.
A
multibiomarker
approach,
namely
antioxidant
defence
system
(ADS;
superoxide
dismutase,
catalase,
glutathione
peroxidases,
-
S
transferases
activities),
oxidative
damage
(OD;
lipid
peroxidation)
were
analysed
mussels.
All
exposure
treatments
after
3
days
led
an
increase
enzymatic
activity,
followed
by
inhibition
14
21
days.
Thus,
ADS
was
overwhelmed
due
generation
ROS,
resulting
OD,
except
for
exposed
The
OD
Mix
mussels
increased
exponentially
57-fold.
When
interact,
potentially
more
hazardous
than
individual
components,
posing
major
species.
synergistic
antagonistic
interactions,
model
applied,
observed
evaluated
biomarkers
all
time-points,
apart
from
interaction
day
relative
LPO.
Results
indicate
that
Mix-exposed
mussel
mainly
5FU
but
nPS.