Introduction:
Globally,
the
need
for
measuring
exposure
to
algal
toxins
has
become
urgent
due
ever-increasing
reports
of
contamination
in
sea
and
freshwater,
shellfish
fish
stocks
aerosols.
Methods:
To
address
this
issue,
we
evaluated
potential
determining
autoantibodies
a
panel
biomarkers
known
be
elevated
following
hepatotoxin
microcystin
leucine-arginine.
The
presence
autoantibodies,
specific
four
selected
stress-response,
metabolomic
chaperone
biomarkers,
namely,
Heat
shock
protein
1,
Triosephosphate
isomerase,
Peroxiredoxin
1
2
was
employed
screening
371
serum
samples
from
microcystin-exposed
individuals
Tanzania.
In
addition,
capacity
LightDeck
fluorescence-based
detector,
point-of-use
device,
monitor
these
autoantibody
responses
comparison
enzyme-linked
immunosorbent
assay
evaluated.
Results:
By
using
determination
novel
an
altered
response
observed
exposure,
with
levels
generally
upregulated.
leucine-arginine
water,
as
well
food
sources
Tanzania,
may
potentially
have
significant
health
effects
on
population.
Discussion:
This
biomarker
detection
various
exposure-associated
cancers
(e.g.,
hepatocellular
cancer
colorectal
cancer).
utilisation
device
proved
successful
rapid
analysis
panel.
Toxins,
Год журнала:
2024,
Номер
16(9), С. 401 - 401
Опубликована: Сен. 18, 2024
Microcystin-LR
(MC-LR),
frequently
generated
by
cyanobacteria,
has
been
demonstrated
to
raise
the
likelihood
of
liver
disease.
Few
previous
studies
have
explored
potential
antagonist
against
MC-LR.
Astaxanthin
(ASX)
shown
possess
various
beneficial
effects
in
regulating
lipid
metabolism
liver.
However,
whether
ASX
could
alleviate
MC-LR-induced
hepatic
metabolic
dysregulation
is
as
yet
unclear.
In
this
work,
important
roles
and
mechanisms
countering
damage
were
for
first
time.
The
findings
revealed
that
not
only
prevented
weight
loss
but
also
enhanced
health
after
MC-LR
exposure.
Moreover,
effectively
decreased
triglyceride,
total
cholesterol,
aspartate
transaminase,
alanine
aminotransferase
contents
mice
elevated
Histological
observation
showed
significantly
alleviated
accumulation
inflammation
induced
Mechanically,
diminish
expression
genes
responsible
generation
(
Toxics,
Год журнала:
2024,
Номер
12(8), С. 547 - 547
Опубликована: Июль 27, 2024
Toxic
algae
in
eutrophic
lakes
produce
cyanotoxic
microcystins.
Prior
research
on
the
effect
of
microcystin-LR
kidney
utilized
intraperitoneal
injections,
which
did
not
reflect
natural
exposure.
Oral
has
focused
renal
function
and
histopathology
without
examining
molecular
mechanisms.
The
present
study
aimed
to
evaluate
mechanism
kidneys
via
oral
administration
WKAH/HkmSlc
rats
over
7
weeks,
alongside
stimulation
proximal
tubular
cells.
Although
there
were
no
differences
concentrations
plasma
albumin,
blood
urea
nitrogen,
creatinine,
are
parameters
function,
between
control
microcystin-LR-administrated
rats,
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
281, С. 116629 - 116629
Опубликована: Июнь 24, 2024
The
degradation
of
cyanobacterial
blooms
releases
hazardous
contaminants
such
as
microcystin-LR
(MC-LR)
and
nitrite,
which
may
collectively
exert
toxicity
on
various
bodily
systems.
To
evaluate
their
individual
combined
in
the
kidney,
mice
were
subjected
to
different
concentrations
MC-LR
and/or
nitrite
over
a
6-month
period
this
study.
results
revealed
that
exposure
exacerbated
renal
pathological
alterations
dysfunction
compared
either
compound
alone.
Specifically,
protein
mRNA
expression
kidney
injury
biomarkers,
molecule
1
(KIM-1)
neutrophil
gelatinase-associated
lipocalin
(NGAL),
notably
increased
group.
Concurrently,
co-exposure
remarkedly
upregulated
levels
proinflammatory
cytokines
TNF-α,
IL-6
IL-1β,
while
decreasing
anti-inflammatory
cytokine
IL-10.
Notably,
exhibited
synergistic
effects
upregulation
IL-1β
levels.
Moreover,
with
not
only
elevated
but
also
pyroptosis
biomarkers
Gasdermin
D
(GSDMD),
Cleaved-GSDMD.
Mechanistic
investigations
promoted
both
vivo
vitro,
possibly
through
activation
TLR4/NLRP3/GSDMD
pathway.
Pretreatment
TLR4
inhibitor
NLRP3
effectively
suppressed
induced
by
these
two
toxins
HEK293T
cells.
These
findings
provide
compelling
evidence
synergistically
induces
activating
Overall,
study
significantly
enhances
our
comprehension
how
environmental
interact
induce
harm
kidneys,
offering
promising
avenues
for
identifying
therapeutic
targets
alleviate
toxic
health.
Journal of Toxicology and Environmental Health,
Год журнала:
2024,
Номер
unknown, С. 1 - 10
Опубликована: Дек. 20, 2024
In
recent
years,
the
outbreak
of
cyanobacterial
blooms
has
become
increasingly
frequent.
Microcystin-LR
(MC-LR),
a
metabolite
cyanobacteria,
poses
significant
threat
to
ecosystem
and
human
health.
Several
studies
have
demonstrated
that
MC-LR
might
induce
renal
cell
apoptosis,
as
consequence
tissue
damage.
However,
molecular
mechanisms
underlying
MC-LR-initiated
injury
remain
be
determined.
This
investigation
aimed
determine
role
apoptosis
in
MC-LR-induced
kidney
damage
its
potential
using
embryonic
(HEK293)
line.
The
results
TUNEL
immunofluorescence
assays
indicated
induced
increased
HEK293
cells.
Compared
control,
mRNA
expression
levels
RIPK1,
caspase-8,
TNF-α
were
elevated
following
incubation
with
MC-LR,
while
level
Bcl-2/Bax
was
decreased.
protein
TNF-R1,
caspase-8
MC-LR-treated
Data
through
activation
TNF-R1/RIPK1
pathway,
providing
new
insights
into
understanding
toxic
attributed
MC-LR.
Toxins,
Год журнала:
2024,
Номер
16(12), С. 542 - 542
Опубликована: Дек. 14, 2024
A
growing
body
of
evidence
indicates
that
microcystins
(MCs)
exposure
may
cause
metabolic
diseases.
However,
studies
exploring
the
effects
MCs
on
risk
syndrome
(MetS)
in
humans
are
currently
lacking,
and
underlying
mechanisms
remain
unclear.
Here,
we
conducted
a
cross-sectional
study
central
China
to
explore
effect
serum
MetS,
assessed
mediation
inflammation
biomarker,
white
blood
cell
(WBC)
level,
this
relationship.
The
relationships
among
WBC
level
MetS
were
using
binary
logistic
linear
regression.
Mediation
analysis
was
used
possible
those
associations
by
employing
R
software
(version
4.3.1).
Compared
lowest
quartile
MCs,
highest
had
an
increased
(odds
ratio
[OR]
=
2.10,
95%
confidence
interval
[CI]:
1.19,
3.70),
with
dose–response
relationship
(p
for
trend
<
0.05).
WBCs
mediated
11.14%
association
between
triglyceride
(TG)
levels,
but
did
not
mediate
MetS.
This
firstly
reveals
is
independent
factor
manner,
suggests
could
partially
TG
levels.