Chinese Science Bulletin (Chinese Version),
Год журнала:
2022,
Номер
67(35), С. 4159 - 4169
Опубликована: Окт. 13, 2022
Screening
priority
pollutants
with
high
toxicity
and
risk
potential
from
a
large
number
of
environmental
chemical
is
the
prerequisite
for
prevention
control
risks.
After
entering
living
system,
toxic
can
induce
adverse
outcomes
through
series
disturbed
molecular
targets
biological
pathways.
Existing
high-throughput
screening
methods
rely
on
few
isolated
cellular
or
endpoints,
making
it
difficult
to
capture
key
processes
that
cause
determine
direct
relationship
between
disease.
Meanwhile,
awareness
increasing
we
are
exposed
true
cocktail
chemicals,
among
which
only
fraction
has
been
identified
analytical
methods.
Integrated
bioanalytical
approaches,
such
as
effect-directed
analysis
identification
evaluation
(TIE),
have
used
identify
drivers
in
complex
mixture
pollutants.
However,
still
elucidate
toxicological
stress
environment.
Toxicogenomics
take
advantage
genome-wide
coverage,
throughput,
big
data
capacity
associated
omics
technologies
achieve
technology
innovation
assessment
We
reviewed
technical
advantages
recent
progress
toxicogenomic
methodology
four
aspects
specific
research
cases.
To
events
initiated
by
pollutants,
toxicogenomics
could
uncover
pathways
potentially
at
early
development
stage
toxicity.
Dose-dependent
transcriptomes
testing
developed
quantitatively
assess
responses
induced
level,
improve
sensitivity
identifying
bioactivity
1–3
orders
magnitude.
health
outcome
systemic
strategies
provide
mechanistic
information
pollution
multiple
levels.
Through
pathway
enrichment
analysis,
gene
ontology
(GO)
kyoto
encyclopedia
genes
genomes
(KEGG)
pathway,
be
captured.
Moreover,
multi-omics
integration
allows
multi-scale,
comprehensive
network
systematic
understanding
(AOPs)
guide
ecological
human
assessments.
For
diseases
diagnostics,
functional
genomics
new
tool
explore
mechanisms
individual
disease
susceptibility
under
exposure.
Variations
toxicant-induced
largely
due
genetic
across
different
populations.
The
established
combining
epidemiological
approaches.
Finally,
management
important
overall
effects
pool
pollutant.
combination
bioassays
highly
bioactive
screen
pollutant
pose
Recently,
progresses
made
integrating
transcriptomic
techniques
(mTIE)
mixtures
distinguish
inducing
corresponding
responses.
Particularly,
dose-response
transcriptome
evaluate
toxicant
resolution.
In
summary,
omics-based
will
strongly
support
accurate
conventional
future.
Chemical Reviews,
Год журнала:
2023,
Номер
123(17), С. 10584 - 10640
Опубликована: Авг. 2, 2023
Exposure
to
environmental
organic
pollutants
has
triggered
significant
ecological
impacts
and
adverse
health
outcomes,
which
have
been
received
substantial
increasing
attention.
The
contribution
of
unidentified
chemical
components
is
considered
as
the
most
knowledge
gap
in
understanding
combined
effects
pollutant
mixtures.
To
address
this
issue,
remarkable
analytical
breakthroughs
recently
made.
In
review,
basic
principles
on
recognition
are
overviewed.
Complementary
methodologies
(i.e.,
quantitative
structure–activity
relationship
prediction,
mass
spectrometric
nontarget
screening,
effect-directed
analysis)
experimental
platforms
briefly
described.
stages
technique
development
and/or
essential
parts
workflow
for
each
then
reviewed.
Finally,
plausible
paths
applications
future
screening
methods,
interdisciplinary
techniques
achieving
toxicant
identification,
burgeoning
strategies
risk
assessment
cocktails
discussed.
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(47), С. 18788 - 18800
Опубликована: Июль 7, 2023
As
disinfection
byproducts
(DBPs)
are
ubiquitous
sources
of
chemical
exposure
in
disinfected
drinking
water,
identifying
unknown
DBPs,
especially
drivers
toxicity,
is
one
the
major
challenges
safe
supply
water.
While
>700
low-molecular-weight
DBPs
have
been
identified,
molecular
composition
high-molecular-weight
remains
poorly
understood.
Moreover,
due
to
absence
standards
for
most
it
difficult
assess
toxicity
contributions
new
identified.
Based
on
effect-directed
analysis,
this
study
combined
predictive
cytotoxicity
and
quantitative
genotoxicity
analyses
Fourier
transform
ion
cyclotron
resonance
mass
spectrometry
(21
T
FT-ICR-MS)
identification
resolve
weight
fractions
that
induce
chloraminated
chlorinated
waters,
along
with
these
DBP
drivers.
Fractionation
using
ultrafiltration
membranes
allowed
investigation
<1
kD,
1-3
3-5
>5
kD
fractions.
Thiol
reactivity
based
single-cell
gel
electrophoresis
assays
revealed
fraction
both
waters
exhibited
highest
levels
direct
genotoxicity.
The
target
was
used
subsequent
identification.
Ultrahigh-resolution
MS
identified
singly
charged
species
(as
evidenced
by
1
Da
spacing
13C
isotopologues),
including
3599
chlorine-containing
empirical
formulas
CHOCl,
CHOCl2,
CHOCl3,
a
relative
abundance
order
CHOCl
>
CHOCl2
≫
CHOCl3.
Interestingly,
more
CHOCl1-3
were
vs
waters.
This
may
be
slower
reactions
NH2Cl.
Most
formed
composed
Cl-DBPs
(up
kD)
rather
than
known
DBPs.
increase
chlorine
number
detected,
O/C
ratio
an
increasing
trend,
while
modified
aromaticity
index
(AImod)
showed
opposite
trend.
In
water
treatment
processes,
removal
natural
organic
matter
high
AImod
value
should
strengthened
minimize
formation
Analytical and Bioanalytical Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 12, 2024
Abstract
The
rapid
increase
in
the
production
and
global
use
of
chemicals
their
mixtures
has
raised
concerns
about
potential
impact
on
human
environmental
health.
With
advances
analytical
techniques,
particular,
high-resolution
mass
spectrometry
(HRMS),
thousands
compounds
transformation
products
with
adverse
effects
can
now
be
detected
samples.
However,
identifying
prioritizing
toxicity
drivers
among
these
remain
a
significant
challenge.
Effect-directed
analysis
(EDA)
emerged
as
an
important
tool
to
address
this
challenge,
combining
biotesting,
sample
fractionation,
chemical
unravel
complex
mixtures.
Traditional
EDA
workflows
are
labor-intensive
time-consuming,
hindering
large-scale
applications.
concept
high-throughput
(HT)
recently
gained
traction
means
accelerating
workflows.
Key
features
HT-EDA
include
combination
microfractionation
downscaled
bioassays,
automation
preparation
efficient
data
processing
supported
by
novel
computational
tools.
In
addition
microplate-based
high-performance
thin-layer
chromatography
(HPTLC)
offers
interesting
alternative
HPLC
HT-EDA.
This
review
provides
updated
perspective
state-of-the-art
HT-EDA,
methods/tools
that
incorporated
into
It
also
discusses
recent
studies
HT
prioritization
tools,
along
considerations
regarding
HPTLC.
By
current
gaps
proposing
new
approaches
overcome
them,
aims
bring
step
closer
monitoring
Graphical
Environmental Science & Technology,
Год журнала:
2022,
Номер
56(16), С. 11516 - 11526
Опубликована: Июль 28, 2022
In
the
current
study,
adult
male
zebrafish
fed
a
normal
diet
(ND)
or
high-fat
(HFD)
were
exposed
to
niclosamide
(NIC)
at
environmentally
relevant
concentrations
reveal
accumulation
and
distribution
in
different
tissues
evaluate
effects
on
liver-gut
axis.
Chemical
analysis
indicated
that
liver
bore
greater
burden
of
NIC
compared
with
brain
gonads
zebrafish,
HFD-fed
fish
their
than
those
ND-fed
fish.
The
indications
from
body
weight,
growth
rate,
mass
index,
micro-CT
images,
biochemical
pathological
changes
confirmed
can
efficaciously
curb
weight
gain
improve
overloads
plasma
insulin
glucose
zebrafish.
However,
potential
axis
also
elucidated:
disturbed
mitochondrial
energy
production,
inhibited
glycemic
triacylglycerol
biosynthesis
but
promoted
free
fatty
acid
catabolism,
therefore
reduced
lipid
hepatocytes;
impaired
physical
barrier,
evoked
inflammatory
oxidative
stress
led
microbiota
dysbiosis
intestine.
There
findings
highlighted
necessity
for
evaluating
its
impacts
health
wild
animals
as
well
human
beings
upon
long-term
exposure.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(23), С. 9925 - 9944
Опубликована: Май 31, 2024
Organic
contaminants
are
ubiquitous
in
the
environment,
with
mounting
evidence
unequivocally
connecting
them
to
aquatic
toxicity,
illness,
and
increased
mortality,
underscoring
their
substantial
impacts
on
ecological
security
environmental
health.
The
intricate
composition
of
sample
mixtures
uncertain
physicochemical
features
potential
toxic
substances
pose
challenges
identify
key
toxicants
samples.
Effect-directed
analysis
(EDA),
establishing
a
connection
between
found
samples
associated
hazards,
enables
identification
that
can
streamline
research
efforts
inform
management
action.
Nevertheless,
advancement
EDA
is
constrained
by
following
factors:
inadequate
extraction
fractionation
samples,
limited
bioassay
endpoints
unknown
linkage
higher
order
impacts,
coverage
chemical
(i.e.,
high-resolution
mass
spectrometry,
HRMS),
lacking
effective
bioassays
analysis.
This
review
proposes
five
advancements
enhance
efficiency
addressing
these
challenges:
(1)
multiple
adsorbents
for
comprehensive
extraction,
(2)
microfractionation
multidimensional
refined
fractionation,
(3)
robust
vivo/vitro
omics,
(4)
high-performance
configurations
HRMS
analysis,
(5)
chemical-,
data-,
knowledge-driven
approaches
streamlined
toxicant
validation.
We
envision
future
will
integrate
big
data
artificial
intelligence
based
development
quantitative
cutting-edge
microfractionation,
ultraperformance
MS
hazard
factors,
serving
broader
governance.
Abstract
Humans
and
wildlife
are
exposed
to
complex
environmental
mixtures.
Identifying
causal
toxic
pollutants
in
samples
remains
challenging
because
of
the
high
complexity
sample
mixtures
unknown
nature
potential
toxicants.
In
field
chemistry
toxicology,
this
pursuit
toxicants
leads
us
method
effect-directed
analysis
(EDA),
an
integrated
comprised
three
iterative
modules:
(1)
bioassays
guide
component
prioritization;
(2)
fractionation
reduce
mixture
complexity;
(3)
chemical
identify
commentary
review,
we
try
provide
a
concise
guideline
for
EDA
beginners
by
summarizing
good
practices
from
successful
studies,
categorized
sample-toxicity
pair
selection,
efficient
separation,
analysis.
We
also
discussed
practical
challenges
faced
with
current
practices.
Based
on
these
above,
suggestions
perspectives
future
studies.
Specifically,
applying
human
biological
examples
causes
diseases.
proposed
collaboration
between
chemists
toxicologists,
health
scientists,
epidemiologists,
physicians,
social
scientists.
Environment International,
Год журнала:
2024,
Номер
190, С. 108855 - 108855
Опубликована: Июнь 28, 2024
Facing
the
great
threats
to
ecosystems
and
human
health
posed
by
continuous
release
of
chemicals
into
aquatic
environments,
effect-directed
analysis
(EDA)
has
emerged
as
a
powerful
tool
for
identifying
causative
toxicants.
However,
traditional
EDA
shows
problems
low-coverage,
labor-intensive
low-efficiency.
Currently,
number
high-efficiency
techniques
have
been
integrated
improve
toxicant
identification.
In
this
review,
latest
progress
current
limitations
EDA,
comprising
high-coverage
effect
evaluation,
high-resolution
fractionation,
chemical
analysis,
high-automation
peak
extraction
structure
elucidation,
are
summarized.
Specifically,
data
processing
algorithms
in
silico
elucidation
well
developed
enhance
EDA.
While
evaluation
should
be
further
emphasized,
especially
omics
tools
data-independent
mass
acquisition.
For
application
status
is
widely
applied
surface
water
wastewater.
Estrogenic,
androgenic
aryl
hydrocarbon
receptor-mediated
activities
most
concerning,
with
toxicants
showing
typical
structural
features
steroids
benzenoids.
A
better
understanding
would
beneficial
advance
field
greatly
support
environment
monitoring.
TrAC Trends in Analytical Chemistry,
Год журнала:
2024,
Номер
180, С. 117901 - 117901
Опубликована: Авг. 5, 2024
Existing
regulatory
frameworks
often
prove
inadequate
in
identifying
contaminants
of
emerging
concern
(CECs)
and
determining
their
impacts
on
biological
systems
at
an
early
stage.
The
establishment
Early
Warning
Systems
(EWSs)
for
CECs
is
becoming
increasingly
relevant
policy-making,
aiming
to
proactively
detect
chemical
hazards
implement
effective
mitigation
measures.
Effect-based
methodologies,
including
bioassays
effect-directed
analysis
(EDA),
offer
valuable
input
EWSs
with
a
view
pinpointing
the
toxicity
drivers
prioritizing
associated
risks.
This
review
evaluates
analytical
techniques
currently
available
assess
effects,
provides
structured
plan
systematic
integration
into
EWS
hazardous
chemicals
environment.
Key
scientific
advancements
effect-based
approaches
EDA
are
discussed,
underscoring
potential
detection
management
hazards.
Additionally,
critical
challenges
such
as
data
alignment
addressed,
emphasizing
need
continuous
improvement
incorporation
safeguard
environmental
public
health
from
threats.