Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Дек. 23, 2024
Introduction
Lactic
acid
bacteria
are
prized
for
their
probiotic
benefits
and
gut
health
improvements.
This
study
assessed
five
LAB
isolates
from
Neera,
with
RAMULAB51
(
Levilactobacillus
brevis
,
GenBank
ON171686.1)
standing
out
its
high
hydrophobicity,
auto-aggregation,
antimicrobial
activity,
enzyme
inhibition.
It
evaluated
RAMULAB51’s
potential
in
probiotics
diabetes
management,
focusing
on
effects
digestive
inhibition,
glucose
uptake,
adipocyte
function.
Methods
Isolates
were
characterized
by
Gram
staining,
catalase
reaction,
growth
at
37°C,
tolerance
to
phenol,
pH,
gastrointestinal
conditions.
Molecular
identification
using
16S
rRNA
sequencing.
Evaluations
included
HT-29
cell
line
adhesion,
antibiotic
susceptibility.
Enzyme
inhibition
was
measured
α-glucosidase
α-amylase
cell-free
supernatant,
extract,
intact
cells.
Adipogenesis
through
Oil-Red
O
gene
expression
analysis
(PPAR-γ,
C/EBPα,
Adiponectin,
Glut-4,
FAS),
uptake
assays
3T3-L1
Results
All
showed
good
pH
(≤9.15
CFU/ml),
phenol
(≤9.90
hydrophobicity
(≤78.14%),
auto-aggregation
(≤92.23%).
demonstrated
the
highest
tolerance,
auto-aggregation.
strongly
co-aggregated
Micrococcus
luteus
Bacillus
subtilis
showing
significant
activity
a
24
mm
zone
against
.
sensitive
Ampicillin,
Azithromycin,
Streptomycin,
Tetracycline,
but
resistant
Methicillin
Vancomycin.
inhibition:
(68.45%
CFS,
60.18%
CE,
42.15%
IC)
(80.74%
61.23%
35.12%
IC).
By
inhibiting
these
enzymes,
reduces
conversion
of
carbohydrates
into
glucose,
thereby
decreasing
blood
levels.
reduction
circulating
subsequently
influences
function,
as
evidenced
enhanced
(1000
µg/mL)
upregulation
PPAR-γ,
alongside
downregulation
FAS.
Conclusion
The
highlights
improving
lipid
metabolism.
Further,
vivo
research
is
needed
explore
full
therapeutic
benefits.
These
findings
confirm
promise
warranting
further
clinical
investigation.
International Journal of Microbiology,
Год журнала:
2024,
Номер
2024(1)
Опубликована: Янв. 1, 2024
Boza,
a
cereal‐based
beverage
popular
in
southeast
Europe,
is
fortified
with
probiotics
and
believed
to
positively
impact
the
composition
of
gut
microflora.
This
investigation
focused
on
fermented
boza
identify
strains
probiotic
Lactobacillus
spp.
capable
inhibiting
carbohydrate‐hydrolysing
enzymes
α
‐glucosidase
(AG)
‐amylase
(AA).
The
isolated
bacterial
underwent
comprehensive
assessment,
including
biochemical,
molecular,
trait
analyses
such
as
tolerance
survivability,
adhesion,
safety,
health‐promoting
attributes.
We
evaluated
inhibitory
potential
supernatant,
cell
lysate,
intact
cells
Molecular
analysis
has
revealed
that
isolates
RAMULAB30
RAMULAB29
exhibit
significant
genetic
similarity
(>97%)
Lacticaseibacillus
paracasei
Limosilactobacillus
fermentum
,
respectively.
These
findings
are
documented
NCBI
database.
They
exhibited
resistance
gastrointestinal
intestinal
fluids,
also
indicating
their
for
adhesion.
Additionally,
showed
antibacterial
activity,
particularly
against
Micrococcus
luteus
.
vancomycin
methicillin
antibiotics
but
were
more
susceptible
streptomycin
ampicillin.
Furthermore,
demonstrated
antioxidant
properties.
To
ensure
haemolytic
assay
was
conducted
despite
general
recognition
safe
(GRAS)
status.
study
primarily
aimed
evaluate
effects
extract
AG
AA.
Bacterial
activity
both
enzyme
(32%–67%
inhibition)
AA
(18%–46%
different
forms,
supernatant
(CS),
lysed
(CE),
(IC).
underscore
inhibit
effectively.
L.
remarkable
antidiabetic
potential.
Food
products
incorporating
these
have
promising
prospects
nutraceuticals,
providing
improved
health
benefits.
International Journal of Applied Pharmaceutics,
Год журнала:
2025,
Номер
unknown, С. 199 - 208
Опубликована: Янв. 7, 2025
Objective:
This
study
explored
the
potential
of
dietary
polyphenols
from
whole
green
jackfruit
flour
as
natural
Sodium-Glucose
Co-Transporter-2
(SGLT-2)
inhibitors
for
managing
hyperglycemia
in
diabetes
mellitus.
Methods:
Advanced
bio-computational
techniques,
including
molecular
docking,
Molecular
Dynamics
(MD)
simulations,
and
binding
free
energy
calculations,
were
employed
to
identify
assess
flour.
Caffeic
syringic
acids
highlighted
their
strong
affinities
SGLT-2
receptor.
Additionally,
a
ligand-based
pharmacophore
model
was
developed
using
caffeic
acid
reference
screen
new
lead
compounds
commercial
product
databases.
Results:
The
found
that
exhibited
stronger
more
stable
interaction
profiles
with
receptor
than
standard
drug
empagliflozin.
MD
simulations
demonstrated
these
provided
greater
stability
site,
indicating
efficacy
inhibitors.
screening
further
supported
findings,
identifying
both
promising
candidates.
Among
14
obtained
High-Performance
Liquid
Chromatography
(HPLC),
docking
suggested
(binding
affinity:-9.0
kcal/mol)
affinity:-9.1
compared
empagliflozin
affinity:-10.4
kcal/mol).
Further,
dynamics
through
Root
mean
Square
Deviation
(RMSD),
Fluctuation
(RMSF),
Radius
Gyration
(Rg),
Solvent
Accessible
Surface
Area
(SASA),
ligand
hydrogen
bonds.
Conclusion:
is
first
effective
These
show
significant
novel
agents
findings
support
exploration
plant-derived
therapies
treatment.
Frontiers in Microbiology,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 29, 2025
The
gut
microbiota
plays
a
significant
role
in
metabolic
disorders
such
as
diabetes
and
obesity,
with
the
peroxisome
proliferator-activated
receptor
gamma
(PPAR-γ)
being
key
regulator
adipogenesis
glucose
metabolism.
This
study
is
novel
approach
that
explores
antihyperglycemic
antihyperlipidemic
effects
of
Levilactobacillus
brevis
RAMULAB54
(LB13243),
isolated
from
fermented
sugarcane
juice.
LB13243
was
cultured
for
SEM
imaging,
its
supernatant
(LBR54)
analyzed.
Organic
acid
interactions
PPAR-γ
were
evaluated
via
molecular
docking,
while
cytotoxicity
adipocyte
differentiation
3T3-L1
cells
tested
using
MTT
assays,
Oil
Red
O
staining,
triglyceride
quantification,
qRT-PCR.
In
vivo
,
male
Wistar
rats
hyperlipidemic
streptozotocin-induced
hyperglycemic
models
treated
4
weeks,
followed
by
analysis
food
intake,
body
weight,
serum
glucose,
lipids,
histopathology.
inhibited
carbohydrate-hydrolyzing
enzymes
showed
an
organic
profile.
silico
hydroxycitric
had
similar
binding
to
PPARγ
rosiglitazone
(binding
energy:−8.4
kcal/mol
vs.−8.3
kcal/mol),
greater
stability
(RMSD:
1.2
Å
vs.
1.7
Å).
Pharmacokinetics
indicated
moderate
GI
absorption
(20%)
low
toxicity
acid.
LBR54
did
not
affect
cell
viability
but
reduced
lipid
accumulation
13%
triglycerides
≤
44
mg/dL.
qRT-PCR
revealed
upregulation
C/EBP-α,
downregulation
FAS,
suggesting
modulation
adipogenesis.
weight
gain,
normalized
organ
weights
rats,
improving
levels
profiles
models.
Histopathology
improved
tissue
structure,
indicating
LB13243's
potential
reduce
hyperglycemia
hyperlipidemia
modulating
metabolism
inflammation.
suggests
it
promising
natural
option
managing
hyperlipidemia.
also
highlights
distinctive
capability
modulate
through
acids,
particularly
acid,
providing
insights
into
therapeutic
potential.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Дек. 4, 2023
The
current
study
aims
to
evaluate
and
characterize
the
probiotic
andantidiabetic
properties
of
lactic
acid
bacteria
(LAB)
obtained
from
milk
other
dairy-based
products.
strains
were
tested
physiologically,
biochemically,
molecularly.
Based
on
biochemical
tests
16S
rRNA
gene
amplification
sequencing,
all
three
isolates
RAMULAB18,
RAMULAB19,
RAMULAB53
identified
as
Lacticaseibacillus
paracasei
with
homology
similarity
more
than
98%.
inhibitory
potential
each
isolate
against
carbohydrate
hydrolysis
enzymes
(α-amylase
α-glucosidase)
was
assessed
using
different
preparations
RAMULAB
(RL)
isolates:
supernatant
(RL-CS),
intact
cells
(RL-IC),
cell-free
extraction
(RL-CE).
Additionally,
evaluated
for
its
antioxidant
activity
free
radicals
(DPPH
ABTS).
strain's
RL-CS,
RL-CE,
RL-IC
inhibited
α-amylase
(17.25
55.42%),
α-glucosidase
(15.08-59.55%),
DPPH
(56.42-87.45%),
ABTS
(46.35-78.45%)
differently.
With
highest
survival
rate
(>98%)
toward
tolerance
gastrointestinal
conditions,
hydrophobicity
(>42.18%),
aggregation
(>74.21%),
well
attachment
an
individual's
colorectal
cancer
cell
line
(HT-29)
(>64.98%),
human
buccal
chicken
crop
epithelial
cells,
exhibited
extensive
results.
All
high
resistance
antibiotics
(methicillin,
kanamycin,
cefixime,
vancomycin),
assays
such
antibacterial,
DNase,
hemolytic,
gelatinase
performed
safety
assessment.
Results
suggest
that
LAB
described
are
valuable
candidates
their
significant
health
benefits
they
can
also
be
utilized
a
beginning
or
bio-preservative
tradition
in
food,
agriculture,
pharmaceutical
sectors.
excellent
vitro
applicants
yet
additional
vivo
testing
is
required.
Food Science & Nutrition,
Год журнала:
2024,
Номер
12(11), С. 9682 - 9701
Опубликована: Окт. 23, 2024
Abstract
Sauerkraut‐derived
lactic
acid
bacterial
(LAB)
strains
have
gained
attention
due
to
their
potential
health
benefits.
This
study
focuses
on
evaluating
seven
RAMULAB
isolated
from
sauerkraut,
aiming
identify
promising
candidates
for
modulating
α‐glucosidase
(AG)
and
α‐amylase
(AM)
enzymatic
functions.
with
remarkable
probiotic
can
contribute
the
digestive
manage
conditions
like
diabetes.
Identifying
robust
a
fermented
food,
holds
promise
natural
cost‐effective
sources.
The
underwent
extensive
characterization,
including
identification
through
16S
ribosomal
RNA
(rRNA)
sequencing.
Their
tolerance
harsh
conditions,
adherence
properties,
antimicrobial
activity,
antioxidant
potential,
inhibition
of
AG
AM
were
assessed.
In
silico
analyses
explored
molecular
interactions,
particularly
hydroxycitric
acid,
antidiabetic
compound.
Among
strains,
RAMULAB48
emerged
as
standout
candidate.
It
displayed
exceptional
resilience
acidic
bile
(≥97%),
simulated
gastrointestinal
(≥95%),
highlighting
its
suitability
applications.
exhibited
cell‐surface
hydrophobicity
(80%),
autoaggregation
(42%),
coaggregation
pathogens
(≥33%),
adhesion
epithelial
cells.
Additionally,
all
isolates
demonstrated
gamma‐hemolysis
resistance
antibiotics
(Kanamycin,
Methicillin,
Vancomycin),
while
displaying
strong
antibacterial
properties
against
foodborne
pathogens.
These
also
varying
degrees
highest
(≥41%).
terms
cell‐free
supernatant
(CS)
obtained
expressed
levels,
notably
inhibiting
yeast
by
an
impressive
59.55%
being
67.42%.
produced
organic
acids,
(28.024
mg/mL),
which
showed
in
analyses,
indicating
favorable
interactions
target
enzymes.
identifies
Lacticaseibacillus
paracasei
RAMULAB48,
strain,
candidate
tolerance,
effects.
presence
further
underscores
managing