bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 13, 2024
Abstract
In
the
search
for
more
effective
prophylactic
and
possibly
curative
therapeutics
against
SARS-CoV-2,
an
historical-ethnobotanical
approach
was
used
to
select
plants
described
in
Receptarium
of
Burkhard
III
von
Hallwyl
(RBH),
influential
recipe
text
from
16th
century
Switzerland.
Ten
species
were
identified
based
on
specific
historical
uses
presumably
linked
with
treatment
viral
infections
as
well
inflammatory
conditions.
For
each
plant
candidate,
aqueous
hydroethanolic
extracts
have
been
produced.
CellTiter-Glo®
Luminescent
Cell
Viability
Assay
assess
antiviral
activity
SARS-CoV-2
effect
cell
viability
extracts.
Of
ten
tested,
four
displayed
≥
50%
at
16.7
µg/ml
acceptable
(>
75%):
Sambucus
nigra
L.
(leaves),
Viola
odorata
Geranium
robertianum
(arial
parts)
Artemisia
vulgaris
(aerial
parts).
The
crude
partitioned
organic
fractions
further
analyzed.
ethyl
acetate
S.
nigra,
V.
G.
expressed
significant
nearly
100%
5.6
(P
<
0.05).
most
potent
inhibitory
observed
fraction
(leaves)
87%
1.9
0.0001).
Alongside
bioactivity
analysis
phytochemical
fingerprints
made,
aim
understand
important
substance
classes
contained.
Further
investigations
are
required
explore
active
principles.
Our
study
shows
that
ethnopharmacological
records
traditional
use
potential
herbal
candidates
coupled
a
rational
screening
process
enables
efficient
plant-derived
natural
products
SARS-CoV-2.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(20), P. 7165 - 7165
Published: Oct. 19, 2023
Peptides
are
at
the
cutting
edge
of
contemporary
research
for
new
potent,
selective,
and
safe
therapeutical
agents.
Their
rise
has
reshaped
pharmaceutical
landscape,
providing
solutions
to
challenges
that
traditional
small
molecules
often
cannot
address.
A
wide
variety
natural
modified
peptides
have
been
obtained
studied,
many
others
advancing
in
clinical
trials,
covering
multiple
therapeutic
areas.
As
demand
peptide-based
therapies
grows,
so
does
need
sustainable
environmentally
friendly
synthesis
methods.
Traditional
peptide
synthesis,
while
effective,
involves
draining
processes,
generating
significant
waste
consuming
vast
resources.
The
integration
green
chemistry
offers
alternatives,
prioritizing
eco-friendly
reduction,
energy
conservation.
This
review
delves
into
transformative
potential
applying
principles
by
discussing
relevant
examples
application
such
approaches
production
active
ingredients
(APIs)
with
a
structure
how
these
efforts
critical
an
effective
transition
era
field.
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2024,
Volume and Issue:
99(4), P. 1524 - 1536
Published: April 1, 2024
ABSTRACT
In
their
environment,
plants
are
exposed
to
a
multitude
of
abiotic
and
biotic
stresses
that
differ
in
intensity,
duration
severity.
As
sessile
organisms,
they
cannot
escape
these
stresses,
but
instead
have
developed
strategies
overcome
them
or
compensate
for
the
consequences
stress
exposure.
Defence
can
take
place
at
different
levels
mechanisms
involved
thought
efficiency
across
levels.
To
minimise
metabolic
constraints
reduce
costs
defence,
prioritise
first‐line
defence
apoplastic
space,
involving
ascorbate,
defensins
small
peptides,
as
well
secondary
metabolites,
before
cellular
processes
affected.
addition,
large
number
symplastic
also
provide
efficient
including
chemical
antioxidants,
antioxidative
enzymes,
other
peptides
proteins.
At
both
level
compensation,
specialised
transporters
be
exchange
membranes
still
not
been
identified,
information
on
regeneration
compounds
remains
ambiguous.
exposure
operate
only
cellular,
organ
whole‐plant
levels,
stomatal
regulation,
hypersensitive
systemic
responses
prevent
spread
impacts
within
plant.
ecosystem
by
root
exudation
signalling
molecules
emission
volatile
organic
compounds,
either
directly
indirectly
into
rhizosphere
and/or
aboveground
atmosphere.
The
which
control
production
mediate
perception
stressful
conditions
fully
understood.
Here
we
summarise
plant
from
level,
discuss
advantages
disadvantages
growth
development,
elucidate
current
state
research
transport
capacity
outline
insufficiently
explored
questions
further
investigation.
Current Research in Biotechnology,
Journal Year:
2023,
Volume and Issue:
5, P. 100121 - 100121
Published: Jan. 1, 2023
Antimicrobial
peptides
(AMPs)
are
natural
biopolymers
in
the
host
defense
system.
AMPs
display
multiple
functions
against
bacterial,
fungal,
and
viral
infection,
as
well
anticancer
properties.
promising
antiviral
agents.
The
average
size,
net
charge,
hydrophobicity
residue
percentage
of
these
Peptide
Database
(APD)
26
amino
acids,
3.5
(+),
48
%,
respectively.
However,
pharmacokinetic
disadvantages
such
low
proteolytic
chemical
stability,
high
cytotoxicity
hemolytic
activity,
salt
sensitivity
inhibit
their
clinical
application.
Given
effects
on
features,
circumventing
drawbacks
improving
efficacy
critically
important
for
structure
acid
components
can
be
modified
by
several
methods,
including
stabilization,
hybridization,
cyclization,
fragmentation,
multimerization,
alteration
conjugation
or
ligation.
Furthermore,
nanotechnologies
effective
tools
strategies
to
improve
reduce
side
effects.
For
example,
melittin-nano
its
therapeutic
minimize
nonspecific
cytotoxicity.
Clinical
trials
waiting
evaluate
delivery
system
novel
treatments.
Frontiers in Sustainable Food Systems,
Journal Year:
2024,
Volume and Issue:
8
Published: April 10, 2024
Plant
proteins
have
been
considered
a
potential
source
of
bio-functional
peptides,
which
can
be
beneficial
for
human
health.
The
potent
antioxidant
properties
plant-based
peptides
protect
against
oxidative
damage
and
associated
diseases.
Despite
significant
number
studies
on
the
preparation
biological
functions
only
limited
are
commercially
utilized.
systematic
extraction,
optimization,
isolation,
pharmacokinetics,
stability,
safety
aspects
plant
protein-derived
(PPDP)
in
progress.
Also,
molecular
mechanism
action
health
benefits
bioactive
PPDP
is
still
lacking.
Hence,
this
review
provides
comprehensive
discussion
various
protein
sources
to
end-product
applications
PPDP.
In
context,
different
explored
functional
presented.
green
biotechnological
techniques
such
as
fermentation
enzymatic
hydrolysis
extraction
described.
revisited.
most
important
part
application
includes
stability
bioavailability
has
discussed.
Additionally,
impact
administration
summarized.
Lastly,
future
perspectives
concluding
remarks
documented.
Critical Reviews in Food Science and Nutrition,
Journal Year:
2023,
Volume and Issue:
unknown, P. 1 - 19
Published: May 19, 2023
Antibiotic
resistance
is
a
significant
public
health
issue,
causing
illnesses
that
were
once
easily
treatable
with
antibiotics
to
develop
into
dangerous
infections,
leading
substantial
disability
and
even
death.
To
help
fight
this
growing
threat,
scientists
are
developing
new
methods
techniques
play
crucial
role
in
treating
infections
preventing
the
inappropriate
use
of
antibiotics.
These
effective
therapeutic
include
phage
therapies,
quorum-sensing
inhibitors,
immunotherapeutics,
predatory
bacteria,
antimicrobial
adjuvants,
haemofiltration,
nanoantibiotics,
microbiota
transplantation,
plant-derived
antimicrobials,
RNA
therapy,
vaccine
development,
probiotics.
As
result
activity
probiotics
intestine,
compounds
derived
from
structure
metabolism
these
bacteria
obtained,
called
postbiotics,
which
multiple
agents
various
applications,
especially
effects,
by
using
different
mechanisms.
have
been
chosen
particular
because
they
don't
promote
spread
antibiotic
substances
can
increase
resistance.
This
manuscript
provides
an
overview
novel
approaches
emphasis
on
postbiotic
metabolites
gut
beneficial
microbes,
their
activities,
recent
related
progressions
food
medical
fields,
as
well
concisely
giving
insight
concept
postbiotics
"hyperpostbiotic"
Membranes,
Journal Year:
2024,
Volume and Issue:
14(10), P. 220 - 220
Published: Oct. 17, 2024
Cholesterol
is
a
biological
molecule
that
essential
for
cellular
life.
It
has
unique
features
in
terms
of
molecular
structure
and
function,
plays
an
important
role
determining
the
properties
cell
membranes.
One
most
recognized
functions
cholesterol
its
ability
to
increase
level
lipid
packing
rigidity
membranes
while
maintaining
high
levels
lateral
mobility
bulk
lipids,
which
necessary
sustain
biochemical
signaling
events.
There
increased
interest
designing
bioactive
peptides
can
act
as
effective
antimicrobial
agents
without
causing
harm
human
cells.
For
this
reason,
it
becomes
relevant
understand
how
affect
interaction
between
membranes,
particular
by
modulating
peptides’
penetrate
disrupt
through
these
changes
membrane
rigidity.
Here
we
discuss
bilayer
recent
evidence
showing
modulates
different
degrees.
Current Plant Biology,
Journal Year:
2024,
Volume and Issue:
39, P. 100376 - 100376
Published: July 31, 2024
In
addition
to
defensins,
plants
possess
an
array
of
defensin-like
peptides
that
share
many
their
characteristics,
as
well
a
role
in
plant's
innate
immunity.
Their
involvement
the
response
pathogens
is
well-known
but
contribution
plant
abiotic
stimuli
not
fully
understood.
We
have
undertaken
silico
analysis
characterize
all
defensin
family
genes
hitherto
found
Arabidopsis,
including
encoding
for
peptides,
by
detecting
several
candidates
further
studies
aiming
decipher
specific
responses
biotic
and
stresses,
crosstalk.
performed
analyses,
co-expression
cis-regulatory
elements
using
transcriptomic
data
obtained
from
ARS
database,
which
integrates
more
than
20,000
Arabidopsis
RNA-seq
libraries.
showed
jasmonates
ABA,
together
with
transcription
factors
belonging
WRKY
AP2/EREBP
families,
modulate
gene
expression.
Indeed,
this
study
allowed
extract
organize
omics
data,
finally
supported
inducible
nature
defensins
under
both
stresses.
Moreover,
vivo
expression
analyses
confirmed
heat
drought
responsiveness
PDF1.4,
ATTI1,
PDF1.1,
DEFL
206,
selected
being
upregulated
conditions,
at
transcriptional
level.
Finally,
provided
information
on
other
biological
processes
may
be
correlated
induction,
such
maintaining
ROS
homeostasis.
Combining
comprehensive
different
datasets
integration
emerged
robust
methodological
approach
assess
proposed
multi-stress
responsive
genes.