Frontiers in Endocrinology,
Journal Year:
2023,
Volume and Issue:
13
Published: Jan. 18, 2023
Anuran
metamorphosis
is
characterized
by
profound
morphological
changes
including
remodeling
of
tissues
and
organs.
This
transition
initiated
thyroid
hormones
(THs).
However,
the
current
knowledge
changing
levels
THs
during
relies
on
pooled
samples
using
methods
known
for
high
variability
with
sparse
reporting
measured
variation.
Moreover,
establishing
a
clear
linkage
between
key
gene
expression
bioindicators
TH
throughout
metamorphic
process
needed.
Using
state-of-the-art
ultra-high
performance
liquid
chromatography
isotope-dilution
tandem
mass
spectrometry,
we
targeted
12
metabolites
in
serum
Rana
[Lithobates]
catesbeiana
(n=5-10)
across
seven
distinct
postembryonic
stages
beginning
premetamorphic
tadpoles
(Gosner
stage
31-33)
continuing
through
to
juvenile
frog
46).
were
related
TH-relevant
transcripts
(thra,
thrb,
thibz)
back
skin
same
individual
animals.
Significant
increases
from
basal
observed
thyroxine
(T4)
3,3',5-triiodothyronine
(T3)
at
Gosner
41,
reaching
maximal
44
(28
±
10
2.3
0.5
ng/mL,
respectively),
decreasing
frogs.
In
contrast,
3,5-diiodothyronine
(T2)
increased
significantly
40
was
maintained
elevated
until
44.
While
thra
transcript
remained
constant
then
decreased
end
climax,
thrb
thibz
induced
followed
decrease
froglet.
exemplifies
exquisite
timing
events
as
classic
early
response
genes
are
transcribed
anticipation
peak
concentrations.
The
T2
concentration
profile
suggests
biological
role
this
biomolecule
anuran
development
an
additional
aspect
that
may
be
target
anthropogenic
chemicals
can
disrupt
signalling.
Hence,
second
aim
study,
set
out
find
metamorphosis,
which
aid
future
investigations
developmental
disruption.
sensitive
nanoLC-Orbitrap
system
untargeted
analysis
workflow
applied.
Among
6,062
endogenous
metabolites,
421
showed
metamorphosis-dependent
dynamics.
These
potential
included
several
carnitines,
prostaglandins
some
steroid
hormones.
Toxics,
Journal Year:
2025,
Volume and Issue:
13(3), P. 222 - 222
Published: March 19, 2025
Thyroid
hormones
(THs)
play
a
crucial
role
in
various
biological
functions,
including
metabolism,
cell
growth,
and
nervous
system
development,
any
alteration
involving
the
structure
of
thyroid
gland
TH
secretion
may
result
disease.
Growing
evidence
suggests
that
phthalate
plasticizers,
which
are
commonly
used
wide
range
products
(e.g.,
food
packaging
materials,
children’s
toys,
cosmetics,
medical
devices),
can
impact
function,
primarily
affecting
serum
levels
THs
TH-related
gene
expression.
Like
compounds,
recently
introduced
alternative
plasticizers
leach
from
their
source
material
into
environment,
particularly
foods,
although
so
far
only
very
limited
number
studies
have
investigated
toxicity.
This
review
aimed
at
summarizing
current
knowledge
on
non-phthalate
dysfunction
disease,
describing
major
mechanisms
underlying
this
relationship.
We
will
also
focus
industry
as
one
main
players
for
massive
spread
such
compounds
human
body,
turn
conveyed
by
edible
compounds.
Given
increasing
worldwide
use
essential
humans,
novel
strategies
should
be
envisaged
to
reduce
burden
and,
general,
health.
Phytoestrogens
(PEs)
are
estrogen-like
nonsteroidal
compounds
derived
from
plants
(e.g.,
nuts,
seeds,
fruits
and
vegetables)
fungi
that
structurally
similar
to
17β-estradiol.
PEs
bind
all
types
of
estrogen
receptors,
including
ERα
ERβ
the
nuclear
a
membrane-bound
receptor
known
as
G
protein-coupled
(GPER).
As
endocrine-disrupting
chemicals
(EDCs)
with
pro‐
or
antiestrogenic
properties,
can
potentially
disrupt
hormonal
regulation
homeostasis,
resulting
in
developmental
reproductive
abnormalities.
However,
lack
diet
does
not
result
development
deficiency
symptoms.
To
properly
assess
benefits
risks
associated
use
PE-rich
diet,
it
is
necessary
distinguish
between
endocrine
disruption
(endocrine-mediated
adverse
effects)
nonspecific
effects
on
system.
Endometriosis
an
estrogen-dependent
disease
unknown
etiopathogenesis,
which
tissue
lining
uterus
(the
endometrium)
grows
outside
subsequent
complications
being
manifested
local
inflammatory
reactions.
affects
10–15%
women
age
chronic
pelvic
pain,
dysmenorrhoea,
dyspareunia
infertility.
In
this
review,
endocrine-disruptive
actions
reviewed
context
endometriosis
determine
whether
has
positive
negative
effect
risk
course
endometriosis.
Frontiers in Endocrinology,
Journal Year:
2023,
Volume and Issue:
13
Published: Jan. 18, 2023
Anuran
metamorphosis
is
characterized
by
profound
morphological
changes
including
remodeling
of
tissues
and
organs.
This
transition
initiated
thyroid
hormones
(THs).
However,
the
current
knowledge
changing
levels
THs
during
relies
on
pooled
samples
using
methods
known
for
high
variability
with
sparse
reporting
measured
variation.
Moreover,
establishing
a
clear
linkage
between
key
gene
expression
bioindicators
TH
throughout
metamorphic
process
needed.
Using
state-of-the-art
ultra-high
performance
liquid
chromatography
isotope-dilution
tandem
mass
spectrometry,
we
targeted
12
metabolites
in
serum
Rana
[Lithobates]
catesbeiana
(n=5-10)
across
seven
distinct
postembryonic
stages
beginning
premetamorphic
tadpoles
(Gosner
stage
31-33)
continuing
through
to
juvenile
frog
46).
were
related
TH-relevant
transcripts
(thra,
thrb,
thibz)
back
skin
same
individual
animals.
Significant
increases
from
basal
observed
thyroxine
(T4)
3,3',5-triiodothyronine
(T3)
at
Gosner
41,
reaching
maximal
44
(28
±
10
2.3
0.5
ng/mL,
respectively),
decreasing
frogs.
In
contrast,
3,5-diiodothyronine
(T2)
increased
significantly
40
was
maintained
elevated
until
44.
While
thra
transcript
remained
constant
then
decreased
end
climax,
thrb
thibz
induced
followed
decrease
froglet.
exemplifies
exquisite
timing
events
as
classic
early
response
genes
are
transcribed
anticipation
peak
concentrations.
The
T2
concentration
profile
suggests
biological
role
this
biomolecule
anuran
development
an
additional
aspect
that
may
be
target
anthropogenic
chemicals
can
disrupt
signalling.
Hence,
second
aim
study,
set
out
find
metamorphosis,
which
aid
future
investigations
developmental
disruption.
sensitive
nanoLC-Orbitrap
system
untargeted
analysis
workflow
applied.
Among
6,062
endogenous
metabolites,
421
showed
metamorphosis-dependent
dynamics.
These
potential
included
several
carnitines,
prostaglandins
some
steroid
hormones.