Fast tracking of Hg2+ ions in living cells, food, and environmental samples using a new mitochondria-targeted red emitting probe and its portable applications
Environmental Pollution,
Journal Year:
2025,
Volume and Issue:
367, P. 125637 - 125637
Published: Jan. 5, 2025
Language: Английский
Organ-specific mercury stable isotopes, speciation and particle measurements reveal methylmercury detoxification processes in Atlantic Bluefin Tuna
Journal of Hazardous Materials,
Journal Year:
2024,
Volume and Issue:
473, P. 134699 - 134699
Published: May 22, 2024
Identifying
metabolism
and
detoxification
mechanisms
of
Hg
in
biota
has
important
implications
for
biomonitoring,
ecotoxicology,
food
safety.
Compared
to
marine
mammals
waterbirds,
MeHg
fish
is
understudied.
Here,
we
investigated
Atlantic
bluefin
tuna
Thunnus
thynnus
using
organ-specific
Se
speciation
data,
stable
isotope
signatures,
particle
measurements
multiple
tissues.
Our
results
provide
evidence
vivo
demethylation
biomineralization
HgSe
particles,
particularly
spleen
kidney.
We
observed
a
maximum
range
1.83‰
δ202Hg
between
lean
muscle,
whereas
Δ199Hg
values
were
similar
across
all
Mean
percent
methylmercury
ranged
from
8%
90%
muscle.
The
particulate
masses
higher
kidney
(Hg:
61
59%,
Se:
12
6%,
respectively)
compared
muscle
2%,
0.05%).
data
supports
the
hypothesis
an
organ-specific,
two-step
wild
fish,
consisting
biomineralization,
like
reported
waterbirds.
While
mass
dependent
fractionation
signatures
highly
organ
specific,
independent
tissues
make
them
potential
candidates
source
apportionment
studies
ABFT.
In
our
study
focused
on
MeHg,
considered
legacy
contaminant
threatening
environmental
public
health
driving
consumption
advisories
worldwide.
Research
mostly
seabirds
mammals,
not
despite
their
relevance
via
seafood
large
biomass,
importance
mercury
cycling
health.
Knowledge
distribution
particles
implementation
monitoring,
needed
interpretation
pursuit
risk
posed
by
MeHg.
Language: Английский
Predicting essential and hazardous element concentrations in marine fish from the Northeast Atlantic Ocean: A Bayesian approach
The Science of The Total Environment,
Journal Year:
2025,
Volume and Issue:
968, P. 178748 - 178748
Published: Feb. 21, 2025
Micronutrient
deficiency
or
'hidden
hunger'
is
of
growing
importance
regionally
and
globally.
Marine
fish
have
the
potential
to
mitigate
hidden
hunger
although
certain
contaminants
they
often
contain
may
also
pose
a
health
risk.
Understanding
biological
environmental
drivers
behind
essential
hazardous
element
concentrations
therefore
important
develop
evidence-based
advice
for
adaptive
management
strategies.
We
use
Bayesian
models
predict
ten
two
elements
in
fillets
14
marine
species
Northeast
Atlantic
Ocean.
Data
from
15,709
individuals
six
lean,
five
semi-fatty,
three
fatty
were
included.
Fish
length,
fat
content,
ocean
basin,
sea
temperature
salinity
used
as
predictor
variables.
found
good
model
predictability
identified
some
trends
driver
effects.
length
was
most
with
negative
effect
calcium,
copper,
manganese,
arsenic,
positive
mercury,
suggesting
that
smaller
be
safer
better
source
elements.
Ocean
basin
an
cases.
For
selenium,
zinc,
sizes
basins
increased
north
south
several
species.
Fat
content
exhibited
small
on
iron,
phosphorus
arsenic
many
Temperature
showed
zinc
concentration
species,
while
varied
among
without
apparent
trend.
This
first
multi-species
multi-element
study
investigate
at
large
spatial
scale
using
approach.
The
robust
indicates
models'
further
understand
nutrient
yield
dynamics
fisheries,
thereby
empowering
implementation
informed
strategies
against
hunger.
Language: Английский
Mercury, Methylmercury, and Its Fractions at the Base of the Trophic Pyramid of the Maritime Antarctic Ecosystem of Admiralty Bay
Journal of Hazardous Materials,
Journal Year:
2025,
Volume and Issue:
492, P. 138268 - 138268
Published: April 12, 2025
Language: Английский
Climate change, mercury pollution, and global ecology
Environmental Pollution,
Journal Year:
2025,
Volume and Issue:
unknown, P. 126284 - 126284
Published: April 1, 2025
Language: Английский
Levels of mercury, arsenic, cadmium and lead in Northeast Atlantic mackerel (Scomber scombrus) from northern European waters
Sylvia Frantzen,
No information about this author
Arne Duinker,
No information about this author
Kåre Julshamn
No information about this author
et al.
Marine Pollution Bulletin,
Journal Year:
2024,
Volume and Issue:
200, P. 116060 - 116060
Published: Feb. 1, 2024
Fillets
from
a
total
of
1245
Northeast
Atlantic
mackerel
(Scomber
scombrus)
sampled
in
different
fishing
areas
the
during
2007–2016
were
analysed
for
mercury,
cadmium,
arsenic
and
lead
using
ICPMS.
Mercury
levels
varied
<0.01
to
0.36
mg/kg
wet
weight
(ww)
with
mean
0.046
ww
significantly
higher
Skagerrak
than
North
Sea,
Norwegian
Sea
west
Scotland.
Cadmium
concentrations
<0.002
0.16
value
0.015
ww.
Only
0.24
%
fish
exceeded
EU's
maximum
cadmium
respectively.
Arsenic
between
0.43
6.9
2.2
showed
seasonal
variation
following
variations
fat
content.
Lead
low
below
analytical
limit
quantification
(LOQ)
97
samples.
Language: Английский
The Microbiota of the Outer Gut Mucus Layer of the Migrating Northeast Arctic Cod (Gadus morhua) as Determined by Shotgun DNA Sequencing
Typhaine Le Doujet,
No information about this author
Peik Haugen
No information about this author
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2204 - 2204
Published: Oct. 31, 2024
Animals
form
functional
units
with
their
microbial
communities,
termed
metaorganisms.
Despite
extensive
research
on
some
model
animals,
diversity
in
many
species
remains
unexplored.
Here,
we
describe
the
taxonomic
profile
of
microbes
from
outer
gut
mucus
layer
Northeast
Arctic
cod
using
a
shotgun
DNA
sequencing
approach.
We
focused
to
determine
if
its
composition
differs
that
fecal
microbiota,
which
could
reveal
unique
interactions
and
functions.
Metagenomes
six
individuals
were
analyzed,
revealing
three
different
profiles:
Type
I
is
dominated
numbers
by
Language: Английский
Trends of hair Hg accumulation in reproductive-age women living in Central Russia and the calculated costs of Hg-induced IQ loss in the period between 2005 and 2021
Journal of Trace Elements in Medicine and Biology,
Journal Year:
2024,
Volume and Issue:
85, P. 127493 - 127493
Published: July 2, 2024
Language: Английский