Antibiotics,
Journal Year:
2023,
Volume and Issue:
12(4), P. 739 - 739
Published: April 12, 2023
Infections
caused
by
resistant
strains
of
Acinetobacter
baumannii
are
now
a
global
problem
that
requires
the
immediate
development
new
antimicrobial
drugs.
Combination
therapy
is
one
strategies
used
to
solve
this
problem.
Based
on
information,
purpose
study
was
determine
whether
quercetin
(QUE),
in
combination
with
three
antibiotics,
effective
against
colistin-resistant
A.
(ColR-Ab).
The
effects
QUE
colistin
(COL),
amikacin
(AMK),
and
meropenem
(MEM)
were
evaluated
according
checkerboard
synergy
test.
combinations
+
COL
AMK
showed
synergistic
activity
ColR-Ab
FICI
values
range
0.1875-0.5
0.1875-0.2825,
respectively.
A
4-
16-fold
decrease
MIC
16-
64-fold
detected.
Synergistic
confirmed
time-kill
test,
these
found
be
bactericidal
at
end
24
h.
According
spectrophotometric
measurements,
induced
membrane
damage,
leading
leakage
nucleic
acids.
Cell
lysis
cell
death
SEM
observations.
detected
offers
an
opportunity
for
future
treatment
potential
infections
strains.
Evidence-based Complementary and Alternative Medicine,
Journal Year:
2021,
Volume and Issue:
2021, P. 1 - 30
Published: Aug. 16, 2021
Microbial
resistance
has
progressed
rapidly
and
is
becoming
the
leading
cause
of
death
globally.
The
spread
antibiotic-resistant
microorganisms
been
a
significant
threat
to
successful
therapy
against
microbial
infections.
Scientists
have
become
more
concerned
about
possibility
return
pre-antibiotic
era.
Thus,
searching
for
alternatives
fight
necessity.
Some
bacteria
are
naturally
resistant
antibiotics,
while
others
acquire
mainly
by
misuse
antibiotics
emergence
new
variants
through
mutation.
Since
ancient
times,
plants
represent
source
drugs
alternative
medicine
fighting
diseases.
Plants
rich
sources
valuable
secondary
metabolites,
such
as
alkaloids,
quinones,
tannins,
terpenoids,
flavonoids,
polyphenols.
Many
studies
focus
on
plant
metabolites
potential
antibiotic
discovery.
They
required
structural
properties
can
act
different
mechanisms.
This
review
analyses
strategies
produced
multidrug-resistant
explores
phytochemicals
from
classes
with
documented
antimicrobial
action
bacteria,
either
alone
or
in
combination
traditional
antibiotics.
Microorganisms,
Journal Year:
2022,
Volume and Issue:
10(6), P. 1239 - 1239
Published: June 16, 2022
Chronic
and
recurrent
bacterial
infections
are
frequently
associated
with
the
formation
of
biofilms
on
biotic
or
abiotic
materials
that
composed
mono-
multi-species
cultures
bacteria/fungi
embedded
in
an
extracellular
matrix
produced
by
microorganisms.
Biofilm
is,
among
others,
regulated
quorum
sensing
(QS)
which
is
interbacterial
communication
system
usually
two-component
systems
(TCSs)
secreted
autoinducer
compounds
activate
signal
transduction
pathways
through
interaction
their
respective
receptors.
Embedded
biofilms,
bacteria
protected
from
environmental
stress
stimuli,
they
often
show
reduced
responses
to
antibiotics,
making
it
difficult
eradicate
infection.
Besides
penetration
antibiotics
intricate
structure
sessile
biofilm-embedded
metabolic
activity
them
intrinsically
less
sensitive
antibiotics.
Moreover,
express
elevated
levels
efflux
pumps
extrude
thereby
reducing
intracellular
levels.
Some
involved
secretion
QS
biofilm-related
materials,
besides
being
important
for
removing
toxic
substances
bacteria.
pump
inhibitors
(EPIs)
have
been
shown
both
prevent
biofilm
sensitize
suggesting
a
relationship
between
these
processes.
Additionally,
quenchers
may
affect
antibiotic
susceptibility.
Thus,
targeting
elements
regulate
might
be
promising
approach
combat
antibiotic-resistant
infections.
Biomolecules,
Journal Year:
2025,
Volume and Issue:
15(1), P. 151 - 151
Published: Jan. 20, 2025
Quercetin,
a
flavonoid
found
in
vegetables
and
fruits,
has
been
extensively
studied
for
its
health
benefits
disease
management.
Its
role
the
prevention
of
various
pathogenesis
well-documented,
primarily
through
ability
to
inhibit
oxidative
stress,
inflammation,
enhance
endogenous
antioxidant
defense
mechanisms.
Electronic
databases
such
as
Google
Scholar,
Scopus,
PubMed,
Medline,
Web
Science
were
searched
information
regarding
quercetin
pathogeneses.
The
included
literature
comprised
experimental
studies,
randomized
controlled
trials,
epidemiological
studies
related
quercetin,
while
editorials,
case
analyses,
theses,
letters
excluded.
It
reported
have
wide
range
including
hepatoprotective,
antidiabetic,
anti-obesity,
neuroprotective,
cardioprotective,
wound
healing,
antimicrobial,
immunomodulatory
effects,
achieved
modulation
biological
activities.
Additionally,
numerous
vitro
vivo
shown
that
quercetin’s
efficacies
cancer
management
involve
inhibiting
cell
signaling
pathways,
cycle,
angiogenesis,
activating
pathways
tumor
suppressor
genes,
inducing
apoptosis.
This
review
aims
provide
comprehensive
understanding
this
outlines
sources
nanoformulations,
applications
management,
along
with
key
findings
from
important
clinical
trial
studies.
Limited
data
safety
mechanism
action
are
available.
is
conduct
more
trials
gain
deeper
disease-preventive
potential,
mechanisms
action,
safety,
optimal
therapeutic
dosages.
Furthermore,
research
based
on
nanoformulations
should
be
performed
minimize/overcome
hindrance
associated
bioavailability,
rapid
degradation,
toxicity.
Frontiers in Pharmacology,
Journal Year:
2022,
Volume and Issue:
13
Published: June 2, 2022
The
increasing
and
widespread
application
of
antibacterial
drugs
makes
antibiotic
resistance
a
prominent
growing
concern
in
clinical
practice.
emergence
multidrug-resistant
bacteria
presents
global
threat.
However,
the
development
use
novel
agents
involves
time-consuming
costly
challenges
that
may
lead
to
yet
further
drug
resistance.
More
recently,
researchers
have
turned
traditional
Chinese
medicine
stem
rise
pathogens.
Many
studies
shown
medicines
significant
bacteriostatic
bactericidal
effects,
with
advantage
low
Some
which
when
combined
antibiotics,
also
demonstrated
activity
by
synergistic
effect.
Traditional
has
variety
active
components,
including
flavonoids,
alkaloids,
phenols,
quinones,
can
inhibit
growth
drug-resistant
be
used
combination
antibiotics
treat
various
bacterial
infections.
We
reviewed
interaction
between
ingredients
antibiotic-resistant
bacteria.
At
present,
flavonoids
alkaloids
are
been
most
widely
studied,
against
show
its
antimicrobial
on
bacteria,
enhance
susceptibility
potentially
reduce
required
dosage
rate
Our
results
provide
direction
for
finding
developing
alternative
methods
counteract
offering
new
therapeutic
strategy
tackling
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(3), P. 1710 - 1710
Published: Feb. 1, 2022
Flavonols
are
a
subclass
of
natural
flavonoids
characterized
by
remarkable
number
biotechnological
applications
and
health-promoting
properties.
They
attract
researchers'
attention
due
to
many
epidemiological
studies
supporting
their
usage.
phytochemicals
commonly
present
in
our
diet,
being
ubiquitous
the
plant
kingdom
and,
particular,
relatively
very
abundant
fruits
vegetables.
All
these
aspects
make
flavonols
candidates
choice
for
valorization
products,
based
on
presence
different
chemical
structures,
each
one
specific
features
capable
influencing
biological
targets
inside
living
organisms
manners.
In
this
review,
we
analyzed
biochemical
physiological
characteristics
focalizing
most
promising
compounds
shed
some
light
increasing
utilization
processing
industries,
as
well
suitable
employment
improve
overall
wellness
humankind.