Metabolomics,
Journal Year:
2023,
Volume and Issue:
19(7)
Published: July 7, 2023
Abstract
Introduction
Absolute
quantification
of
individual
metabolites
in
complex
biological
samples
is
crucial
targeted
metabolomic
profiling.
Objectives
An
inter-laboratory
test
was
performed
to
evaluate
the
impact
NMR
software,
peak-area
determination
method
(integration
vs.
deconvolution)
and
operator
on
trueness
precision.
Methods
A
synthetic
urine
containing
32
compounds
prepared.
One
site
prepared
calibration
samples,
acquisition.
spectra
were
acquired
with
two
pulse
sequences
including
water
suppression
used
routine
analyses.
The
pre-processed
sent
other
sites
where
each
quantified
using
internal
referencing
or
external
calibration,
his/her
favourite
in-house,
open-access
commercial
tool.
Results
For
1D
measurements
solvent
presaturation
during
recovery
delay
(zgpr),
20
successfully
by
all
processing
strategies.
Some
could
not
be
some
methods.
TSP,
only
one
half
a
below
5%.
With
peak
integration
about
90%
NMRProcFlow
module
allowed
several
additional
metabolites.
number
improved
for
deconvolution
tools.
Trueness
precision
significantly
different
between
zgpr-
NOESYpr-based
70%
variables.
Conclusion
External
better
than
TSP
referencing.
Inter-laboratory
tests
are
useful
when
choosing
rationalize
choice
tools
NMR-based
profiling
confirm
value
Advances in Nutrition,
Journal Year:
2022,
Volume and Issue:
13(6), P. 2573 - 2589
Published: Sept. 27, 2022
Data
currently
generated
in
the
field
of
nutrition
are
becoming
increasingly
complex
and
high-dimensional,
bringing
with
them
new
methods
data
analysis.
The
characteristics
machine
learning
(ML)
make
it
suitable
for
such
analysis
thus
lend
itself
as
an
alternative
tool
to
deal
this
nature.
ML
has
already
been
applied
important
problem
areas
nutrition,
obesity,
metabolic
health,
malnutrition.
Despite
this,
experts
often
without
understanding
ML,
which
limits
its
application
therefore
potential
solve
open
questions.
current
article
aims
bridge
knowledge
gap
by
supplying
researchers
a
resource
facilitate
use
their
research.
is
first
explained
distinguished
from
existing
solutions,
key
examples
applications
literature
provided.
Two
case
studies
domains
particularly
applicable,
precision
metabolomics,
then
presented.
Finally,
framework
outlined
guide
interested
integrating
into
work.
By
acting
can
refer,
we
hope
support
integration
modern
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(12), P. 10322 - 10322
Published: June 19, 2023
Several
studies
have
shown
that
the
gut
microbiota
influences
behavior
and,
in
turn,
changes
immune
system
associated
with
symptoms
of
depression
or
anxiety
disorder
may
be
mirrored
by
corresponding
microbiota.
Although
composition/function
intestinal
appears
to
affect
central
nervous
(CNS)
activities
through
multiple
mechanisms,
accurate
epidemiological
evidence
clearly
explains
connection
between
CNS
pathology
and
dysbiosis
is
not
yet
available.
The
enteric
(ENS)
a
separate
branch
autonomic
(ANS)
largest
part
peripheral
(PNS).
It
composed
vast
complex
network
neurons
which
communicate
via
several
neuromodulators
neurotransmitters,
like
those
found
CNS.
Interestingly,
despite
its
tight
connections
both
PNS
ANS,
ENS
also
capable
some
independent
activities.
This
concept,
together
suggested
role
played
microorganisms
metabolome
onset
progression
neurological
(neurodegenerative,
autoimmune)
psychopathological
(depression,
disorders,
autism)
diseases,
large
number
investigations
exploring
functional
physiopathological
implications
microbiota/brain
axis.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(8), P. e18991 - e18991
Published: Aug. 1, 2023
Chronic
kidney
disease
(CKD)
refers
to
a
range
of
various
pathophysiological
processes
correlated
with
abnormal
renal
function
and
progressive
loss
in
GFR.
Just
as
dysbiosis
altered
pathology
the
gut
are
accompanied
hypertension,
which
is
significant
CKD
risk
factor.
Gut
patients
associated
an
elevated
levels
uremic
toxins,
turn
increases
progression.
According
research
results,
gut-kidney
axis
has
role
formation
stones,
also
IgAN.
A
number
researchers
have
categorized
microbiota
enterotypes,
others,
skeptical
theory
suggested
biomarkers
describe
taxa
that
related
lifestyle,
nutrition,
status.
Metabolome-microbiome
studies
been
used
investigate
interactions
host-gut
terms
involvement
metabolites
these
yielded
promising
results.
The
correlation
between
requires
further
multi-omic
researches.
Also,
regard
systems
biology,
on
communication
network
proteins
transporters
such
SLC
ABC,
can
help
us
achieve
deeper
understanding
gut-liver-kidney
thus
provide
new
horizons
treatment
patients.
Probiotic-based
approach
reduce
poisoning,
accomplished
by
swallowing
microbes
those
catalyze
URS
gut.
If
comprehensive
carried
out,
we
will
know
about
probiotics
impact
slowing
failure
progression
reducing
inflammatory
markers.
Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: May 9, 2023
Background
Deep
metabolomic,
proteomic
and
immunologic
phenotyping
of
patients
suffering
from
an
infection
with
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
have
matched
a
wide
diversity
clinical
symptoms
potential
biomarkers
for
disease
2019
(COVID-19).
Several
studies
described
the
role
small
as
well
complex
molecules
such
metabolites,
cytokines,
chemokines
lipoproteins
during
in
recovered
patients.
In
fact,
after
SARS-CoV-2
viral
almost
10-20%
experience
persistent
post
12
weeks
recovery
defined
long-term
COVID-19
(LTCS)
or
long
post-acute
(PACS).
Emerging
evidence
revealed
that
dysregulated
immune
system
persisting
inflammation
could
be
one
key
drivers
LTCS.
However,
how
these
biomolecules
altogether
govern
pathophysiology
is
largely
underexplored.
Thus,
clear
understanding
parameters
within
integrated
fashion
predict
course
would
help
to
stratify
LTCS
This
even
allow
elucidation
mechanistic
course.
Methods
study
comprised
subjects
(n=7;
longitudinal),
(n=33),
Recov
(n=12),
no
history
positive
testing
(n=73).
1
H-NMR-based
metabolomics
IVDr
standard
operating
procedures
verified
phenotyped
all
blood
samples
by
quantifying
38
metabolites
112
lipoprotein
properties.
Univariate
multivariate
statistics
identified
NMR-based
cytokine
changes.
Results
Here,
we
report
on
analysis
serum/plasma
NMR
spectroscopy
flow
cytometry-based
cytokines/chemokines
quantification
We
lactate
pyruvate
were
significantly
different
either
healthy
controls
(HC)
Subsequently,
correlation
group
only
among
cytokines
amino
acids
histidine
glutamine
uniquely
attributed
mainly
pro-inflammatory
cytokines.
Of
note,
triglycerides
several
(apolipoproteins
Apo-A1
A2)
demonstrate
COVID-19-like
alterations
compared
HC.
Interestingly,
distinguished
mostly
their
phenylalanine,
3-hydroxybutyrate
(3-HB)
glucose
concentrations,
illustrating
imbalanced
energy
metabolism.
Most
present
at
low
levels
HC
except
IL-18
chemokine,
which
tended
higher
Conclusion
The
identification
plasma
will
better
other
diseases
ongoing
severity
Diagnostics,
Journal Year:
2022,
Volume and Issue:
12(3), P. 707 - 707
Published: March 14, 2022
In
recent
years,
various
quantitative
and
functional
magnetic
resonance
imaging
(MRI)
sequences
have
been
developed
used
in
clinical
practice
for
the
diagnosis
of
patients
with
low
back
pain
(LBP).
Until
now,
T2-weighted
(T2WI),
a
visual
qualitative
evaluation
method,
has
to
diagnose
intervertebral
disc
(IVD)
degeneration.
However,
this
method
limitations
terms
reproducibility
inter-observer
agreement.
Moreover,
T2WI
observations
do
not
directly
relate
LBP.
Therefore,
new
such
as
T2
mapping,
T1ρ
MR
spectroscopy
alternative
methods.
These
MRIs
can
evaluate
anatomical
physiological
changes
IVD
degeneration
more
detail
than
conventional
T2WI.
values
obtained
from
these
still
correlate
LBP,
there
is
need
widespread
use
techniques
that
are
specific
symptoms
pain.
paper,
we
review
state-of-the-art
methodologies
future
challenges
MRI
an
diagnostic
tool
painful
discs.
Applied Sciences,
Journal Year:
2022,
Volume and Issue:
12(6), P. 2824 - 2824
Published: March 9, 2022
NMR
measurements
combined
with
chemometrics
allow
achieving
a
great
amount
of
information
for
the
identification
potential
biomarkers
responsible
precise
metabolic
pathway.
These
kinds
data
are
useful
in
different
fields,
ranging
from
food
to
biomedical
including
health
science.
The
investigation
whole
set
metabolites
sample,
representing
its
fingerprint
considered
condition,
is
known
as
metabolomics
and
may
take
advantage
statistical
tools.
new
frontier
adopt
self-learning
techniques
enhance
clustering
or
classification
actions
that
can
improve
predictive
power
over
large
amounts
data.
Although
machine
learning
already
employed
metabolomics,
deep
artificial
neural
networks
approaches
were
only
recently
successfully
applied.
In
this
work,
we
give
an
overview
underlying
wide
range
opportunities
perform
accurate
assignment
quantification.Various
actual
challenges
discussed,
such
proper
architectures
model
accuracy.
Acta Pharmaceutica Sinica B,
Journal Year:
2022,
Volume and Issue:
13(3), P. 1231 - 1245
Published: Sept. 13, 2022
Lipid
homeostasis
is
considered
to
be
related
intestinal
metabolic
balance,
while
its
role
in
the
pathogenesis
and
treatment
of
ulcerative
colitis
(UC)
remains
largely
unexplored.
The
present
study
aimed
identify
target
lipids
occurrence,
development
UC
by
comparing
lipidomics
patients,
mice
colonic
organoids
with
corresponding
healthy
controls.
Here,
multi-dimensional
based
on
LC-QTOF/MS,
LC-MS/MS
iMScope
systems
were
constructed
used
decipher
alteration
lipidomic
profiles.
results
indicated
that
patients
often
accompanied
dysregulation
lipid
homeostasis,
which
triglycerides
phosphatidylcholines
significantly
reduced.
Notably,
phosphatidylcholine
34:1
(PC34:1)
was
characterized
high
abundance
closely
correlation
disease.
Our
also
revealed
down-regulation
PC
synthase
PCYT1α
Pemt
caused
modeling
main
factor
leading
reduction
PC34:1,
exogenous
PC34:1
could
greatly
enhance
fumarate
level
via
inhibiting
transformation
glutamate
N-acetylglutamate,
thus
exerting
an
anti-UC
effect.
Collectively,
our
not
only
supplies
common
technologies
strategies
for
exploring
metabolism
mammals,
but
provides
opportunities
discovery
therapeutic
agents
biomarkers
UC.