A review of the neurobehavioural, physiological, and reproductive toxicity of microplastics in fishes
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
282, P. 116712 - 116712
Published: July 15, 2024
Microplastics
(MPs)
have
emerged
as
widespread
environmental
pollutants,
causing
significant
threats
to
aquatic
ecosystems
and
organisms.This
review
examines
the
toxic
effects
of
MPs
on
fishes,
with
a
focus
neurobehavioural,
physiological,
reproductive
impacts,
well
underlying
mechanisms
toxicity.Evidence
indicates
that
induce
range
neurobehavioural
abnormalities
in
affecting
social
interactions
cognitive
functions.Altered
neurotransmitter
levels
are
identified
key
mechanism
driving
behavioural
alterations
following
MP
exposure.Physiological
fishes
exposed
also
reported,
including
neurotoxicity,
immunotoxicity,
oxidative
stress.These
physiological
disruptions
can
compromise
individual
health
organisms.Furthermore,
linked
exposure
discussed,
particular
emphasis
endocrine
signaling
pathways.These
impair
success
fish
species,
impacting
population
numbers.Here
we
explore
critical
role
mediating
after
MPs,
focusing
primarily
hypothalamic-pituitary-gonadal
axis.Our
highlights
urgent
need
for
interdisciplinary
research
efforts
aimed
at
elucidating
full
extent
toxicity
its
implications
ecosystems.Lastly,
identify
knowledge
gaps
future
research,
investigations
into
transgenerational
if
any,
quantifying
synergetic/antagonistic
other
pollutants.This
expanded
regarding
potential
risks
wildlife
is
expected
aid
policymakers
developing
mitigation
strategies
protect
species.
Language: Английский
Immunological, neurological, and intestinal changes in red swamp crayfish (Procambarus clarkii) exposed to the combined toxicity of Pyrogallol and microplastics
Marine Pollution Bulletin,
Journal Year:
2025,
Volume and Issue:
213, P. 117641 - 117641
Published: Feb. 8, 2025
Language: Английский
Impacts of Voliam Flexi on Antioxidant Responses, Oxidative Stress, and Histopathological Changes in Juvenile African Catfish (Clarias gariepinus)
Aquaculture Research,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
This
study
investigated
the
toxicological
impact
of
Voliam
Flexi
(containing
chlorantraniliprole
and
thiamethoxam)
on
juvenile
African
catfish
(
Clarias
gariepinus
),
a
species
commonly
exposed
to
pesticides
in
rice
cultivation
regions.
toxic
effects
catfish,
focusing
oxidative
stress,
antioxidant
enzyme
disruption,
tissue
damage
at
environmentally
relevant
concentrations.
Over
15‐day
period,
fish
were
pesticide
concentrations
applied
Egyptian
fields,
specifically
43.5,
87.5,
175
mg/L.
Antioxidant
defense
mechanisms,
including
GST
(glutathione
S‐transferase),
SOD
(superoxide
dismutase),
CAT
(catalase),
TAC
(total
capacity),
measured
alongside
indicators
such
as
lipid
peroxidation
(LPX)
DNA
fragmentation.
A
dose‐dependent
reduction
activity
an
increase
observed,
with
higher
leading
elevated
LPX
levels
Histopathological
evaluations
kidney
spleen
revealed
significant
degenerative
changes,
tubular
damage,
edema,
pyknotic
nuclei,
particularly
These
findings
suggest
that
poses
considerable
risks
aquatic
organisms,
disrupting
cellular
functions,
damage.
The
highlights
potential
threat
runoff
biodiversity
calls
for
stricter
environmental
regulations
mitigate
these
risks.
Language: Английский
Exploring the Coexposure Effects of Pyrogallol and Microplastic on the Red Swamp Crayfish Procambarus clarkii
Aquaculture Research,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
Investigating
the
impact
of
two
or
more
toxic
chemicals
on
aquatic
organisms
is
one
main
objectives
toxicological
research.
Microplastics
(MPs)
are
identified
as
a
carrier
vector
for
other
pollutants.
Therefore,
current
study
investigated
effects
both
pyrogallol
(PG)
and
MPs,
individually
in
combination,
freshwater
crayfish
(
Procambarus
clarkii
).
Following
15‐day
exposure
to
10
mg/L
PG
and100
MPs
their
combination
(10
+
100
MPs),
hemocyte
count,
hepatopancreatic
parameters,
antioxidant
variables,
histopathological
markers
were
all
assessed
crayfish.
The
results
revealed
that
potentially
combined
altered
count
(including
granular
semigranular)
compared
control
group
(0.001
≥
p
<
0.0001).
levels
aspartate
aminotransferase
(AST),
alanine
(ALT),
protein
showed
significant
elevation
0.05)
PG–MP‐exposed
fish
ones.
In
comparison
P.
,
measured
oxidation
indicators,
superoxide
dismutase
(SOD),
glutathione
(GSH),
total
capacity
(TAC),
reduction
after
single
>
0.0001),
while
catalase
(CAT)
malondialdehyde
(MDA)
elevated
drastically
(0.05
histology
hepatopancreas
has
shown
many
deformities
abnormalities
individual
toxicity,
such
vacuolations,
degraded
tubules,
eosinophilic
deposits,
hemocytic
infiltrations,
aberrant
tubules.
Accordingly,
there
synergistic
relationship
between
MP
toxicity
it
crucial
routinely
check
assess
discharge
waste
into
waterways.
Language: Английский
The protective effects of dietary microalgae against hematological, biochemical, and histopathological alterations in pyrogallol-intoxicated Clarias gariepinus
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(24), P. e40930 - e40930
Published: Dec. 1, 2024
Language: Английский
Assessing the effects of cadmium on antioxidant enzymes and histological structures in rainbow trout liver and kidney
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 10, 2024
Cadmium
contamination
in
aquatic
environments
poses
severe
risks
to
organisms,
particularly
fish,
where
cadmium
accumulation
tissues
can
lead
compromised
organ
functionality
and
reproductive
issues.
The
present
study
aimed
assess
the
effects
of
(Cd)
exposure
on
key
biomarkers
oxidative
stress,
DNA
damage,
apoptosis,
enzyme
activity
liver
kidney
rainbow
trout
(Oncorhynchus
mykiss).
Specifically,
measured
8-hydroxy-2-deoxyguanosine
(8-OHdG)
levels,
caspase-3
activation,
acetylcholinesterase
(AChE)
activity,
stress
indicators
(ONOO
Language: Английский