The Lancet Planetary Health,
Journal Year:
2024,
Volume and Issue:
8(1), P. e5 - e17
Published: Jan. 1, 2024
BackgroundPerfluoroalkyl
and
polyfluoroalkyl
substances
are
classed
as
endocrine
disrupting
compounds
but
continue
to
be
used
in
many
products
such
firefighting
foams,
flame
retardants,
utensil
coatings,
waterproofing
of
food
packaging.
Perfluoroalkyl
exposure
aberrantly
modulates
lipid,
metabolite,
bile
acid
levels,
increasing
susceptibility
onset
severity
metabolic
diseases,
diabetes
dysfunction-associated
steatotic
liver
disease.
To
date,
most
studies
humans
have
focused
on
perfluoroalkyl-exposure
effects
adults.
In
this
study
we
aimed
show
if
perfluoroalkyls
present
the
human
fetal
they
consequences
for
fetus.MethodsIn
cross-sectional
study,
livers
from
elective
termination
pregnancies
at
Aberdeen
Pregnancy
Counselling
Service,
Aberdeen,
UK,
were
analysed
by
both
targeted
(bile
acids
perfluoroalkyl
substances)
combined
untargeted
(lipids
polar
metabolites)
mass
spectrometry
based
metabolomic
analyses,
well
with
RNA-Seq.
Only
fetuses
normally
progressing
(determined
ultrasound
scan
before
termination),
terminated
non-medical
reasons,
women
older
than
16
years,
fluent
English,
between
11
21
weeks
gestation
collected.
Women
exhibiting
considerable
emotional
distress
or
whose
had
anomalies
identified
excluded.
Stringent
bioinformatic
statistical
methods
partial
correlation
network
analysis,
linear
regression,
pathway
analysis
applied
data
investigate
association
hepatic
pathways.FindingsFetuses
included
collected
Dec
2,
2004,
Oct
27,
2014.
78
study:
all
metabolomics
(40
female
38
male)
57
RNA-Seq
(28
29
male).
Metabolites
associated
these
varied
gestational
age.
Conjugated
markedly
positively
23
amino
acids,
fatty
sugar
derivatives
inversely
exposure,
glycolithocholic
was
quantified
perfluoroalkyl.
Furthermore,
7α-hydroxy-4-cholesten-3-one,
a
marker
synthesis
rate,
strongly
levels
detectable
early
week
12.InterpretationOur
shows
direct
evidence
utero
specific
key
products.
Our
results
provide
that
potential
future
consequences,
manifests
fetus
first
trimester
gestation.
profiles
changes
resemble
those
observed
perinatal
exposures.
Such
exposures
already
linked
susceptibility,
initiation,
progression,
exacerbation
wide
range
diseases.FundingUK
Medical
Research
Council,
Horizon
Europe
Program
European
Union,
Seventh
Framework
Programme
NHS
Grampian
Endowments
grants,
Partnership
Assessment
Risks
Chemicals,
Swedish
Formas,
Novo
Nordisk
Foundation,
Academy
Finland.
Environment International,
Journal Year:
2022,
Volume and Issue:
163, P. 107219 - 107219
Published: March 30, 2022
The
massive
use
and
the
persistence
of
per-
polyfluoroalkyl
substances
(PFAS)
have
led
to
their
frequent
detection
in
aquatic
environments,
which
may
further
threaten
drinking
water
safety.
So
far,
our
knowledge
about
occurrence
PFAS
system
is
still
very
limited.
Here
we
investigated
removal
a
using
non-target,
suspect
target
screening
strategies.
Sampling
was
performed
three
seasons
including
source,
two
treatment
plants,
tap
five
households.
results
showed
17
homologous
series
with
51
homologues
non-target
50
potential
detected
screening.
Probable
structures
were
proposed
for
15
high
confidence
levels
(the
first
levels),
seven
them
being
reported
time
system.
Semi-quantification
on
based
PFAS,
estimated
total
concentrations
ranged
between
4.10
17.6
ng/L.
Nine
out
found
precisely
quantified
(
Environment International,
Journal Year:
2022,
Volume and Issue:
163, P. 107179 - 107179
Published: March 21, 2022
Experimental
evidence
has
shown
that
per-
and
polyfluoroalkyl
substances
(PFAS)
alternatives
mixtures
may
exert
hepatotoxic
effects
in
animals.
However,
epidemiological
is
limited.
This
research
aimed
to
explore
associations
of
PFAS
the
with
liver
function
a
general
adult
population.
The
study
participants
consisted
1,303
adults
from
community-based
cross-sectional
investigation
Guangzhou,
China,
November
2018
August
2019.
We
selected
13
detection
rates
>
85%
serum
samples
focused
on
perfluorooctane-sulfonic
acid
(PFOS),
perfluorooctanoic
(PFOA)
their
[6:2
chlorinated
polyfluorinated
ether
sulfonate
(6:2
Cl-PFESA),
8:2
Cl-PFESA,
perfluorohexanoic
(PFHxA)]
as
predictors
outcome.
Six
biomarkers
(ALB,
ALT,
AST,
GGT,
ALP,
DBIL)
were
chosen
outcomes.
applied
regression
models
restricted
cubic
spline
correlations
between
single
inspected
combined
effect
by
applying
Bayesian
kernel
machine
(BKMR).
discovered
positive
among
except
for
ALP.
For
example,
compared
25th
percentile
concentration,
level
ALT
increased
12.36%
(95%
CI:
7.91%,
16.98%)
ln-6:2
5.59%
2.35%,
8.92%)
ln-8:2
3.56%
−0.39%,
7.68%)
ln-PFHxA,
13.91%
8.93%,
19.13%)
ln-PFOA,
14.25%
9.91%,
18.77%)
ln-PFOS
at
75th
percentile.
In
addition,
higher
exposed
was
found
be
correlated
greater
odds
abnormal
function.
Analysis
BKMR
also
showed
an
adverse
association
mixture
appeared
non-interactive,
which
PFOS
main
contributor
overall
effect.
Our
findings
provide
alternatives,
mixtures,
Environment International,
Journal Year:
2023,
Volume and Issue:
173, P. 107851 - 107851
Published: Feb. 26, 2023
Emerging
epidemiological
evidence
has
linked
per-
and
polyfluoroalkyl
substances
(PFAS)
exposure
could
be
to
the
disturbance
of
gestational
glucolipid
metabolism,
but
toxicological
mechanism
is
unclear,
especially
when
at
a
low
level.
This
study
examined
metabolic
changes
in
pregnant
rats
treated
with
relatively
dose
perfluorooctanesulfonic
acid
(PFOS)
through
oral
gavage
during
pregnancy
[gestational
day
(GD):
1–18].
We
explored
molecular
mechanisms
underlying
perturbation.
Oral
glucose
tolerance
test
(OGTT)
biochemical
tests
were
performed
assess
homeostasis
serum
lipid
profiles
Sprague-Dawley
(SD)
randomly
assigned
starch,
0.03
0.3
mg/kg·bw·d
groups.
Transcriptome
sequencing
combined
non-targeted
metabolomic
assays
further
identify
differentially
altered
genes
metabolites
liver
maternal
rats,
determine
their
correlation
phenotypes.
Results
transcriptome
showed
that
expressed
PFOS
related
several
pathways,
such
as
peroxisome
proliferator-activated
receptors
(PPARs)
signaling,
ovarian
steroid
synthesis,
arachidonic
insulin
resistance,
cholesterol
unsaturated
fatty
bile
secretion.
The
untargeted
metabolomics
identified
164
158
differential
groups,
respectively
under
negative
ion
mode
Electrospray
Ionization
(ESI-),
which
enriched
pathways
α-linolenic
glycolysis/gluconeogenesis,
glycerolipid
glucagon
signaling
pathway,
glycine,
serine
threonine
metabolism.
Co-enrichment
analysis
indicated
may
disturb
metabolism
glycerolipid,
linoleic
acid,
biosynthesis,
threonine.
key
involved
included
down-regulated
Ppp1r3c
Abcd2,
up-regulated
Ogdhland
Ppp1r3g,
increased
glycerol
3-phosphate
lactosylceramide
identified.
Both
them
significantly
associated
fasting
blood
(FBG)
Our
findings
provide
mechanistic
clues
for
clarifying
toxicity
human,
susceptible
population
women.
Nutrients,
Journal Year:
2023,
Volume and Issue:
15(10), P. 2335 - 2335
Published: May 16, 2023
Non-alcoholic
fatty
liver
disease
(NAFLD)
is
the
most
common
form
of
chronic
and
represents
an
increasing
public
health
issue
given
limited
treatment
options
its
association
with
several
other
metabolic
inflammatory
disorders.
The
epidemic,
still
growing
prevalence
NAFLD
worldwide
cannot
be
merely
explained
by
changes
in
diet
lifestyle
that
occurred
last
few
decades,
nor
from
their
genetic
epigenetic
risk
factors.
It
conceivable
environmental
pollutants,
which
act
as
endocrine
disruptors,
may
contribute
to
spreading
this
pathology
due
ability
enter
food
chain
ingested
through
contaminated
water.
Given
strict
interplay
between
nutrients
regulation
hepatic
metabolism
reproductive
functions
females,
pollutant-induced
dysfunctions
particular
relevance
for
female
liver,
dampening
sex
differences
prevalence.
Dietary
intake
pollutants
can
particularly
detrimental
during
gestation,
when
endocrine-disrupting
chemicals
interfere
programming
metabolism,
accounting
developmental
origin
offspring.
This
review
summarizes
cause-effect
evidence
increased
incidence
emphasizes
need
further
studies
field.