Signal Transduction and Targeted Therapy,
Journal Year:
2022,
Volume and Issue:
7(1)
Published: Jan. 17, 2022
The
ketogenic
diet
(KD)
is
a
high-fat,
adequate-protein,
and
very-low-carbohydrate
regimen
that
mimics
the
metabolism
of
fasting
state
to
induce
production
ketone
bodies.
KD
has
long
been
established
as
remarkably
successful
dietary
approach
for
treatment
intractable
epilepsy
increasingly
garnered
research
attention
rapidly
in
past
decade,
subject
emerging
evidence
promising
therapeutic
potential
various
diseases,
besides
epilepsy,
from
obesity
malignancies.
In
this
review,
we
summarize
experimental
and/or
clinical
efficacy
safety
different
discuss
possible
mechanisms
action
based
on
recent
advances
understanding
influence
at
cellular
molecular
levels.
We
emphasize
may
function
through
multiple
mechanisms,
which
remain
be
further
elucidated.
challenges
future
directions
implementation
spectrum
diseases
have
discussed.
suggest
that,
with
encouraging
effects
increasing
insights
into
action,
randomized
controlled
trials
should
conducted
elucidate
foundation
use
KD.
Journal of Alzheimer s Disease,
Journal Year:
2017,
Volume and Issue:
57(4), P. 1105 - 1121
Published: Jan. 6, 2017
Alzheimer's
disease
(AD)
is
a
devastating
neurodegenerative
disorder
without
cure.
Most
AD
cases
are
sporadic
where
age
represents
the
greatest
risk
factor.
Lack
of
understanding
mechanism
hinders
development
efficacious
therapeutic
approaches.
The
loss
synapses
in
affected
brain
regions
correlates
best
with
cognitive
impairment
patients
and
has
been
considered
as
early
that
precedes
neuronal
loss.
Oxidative
stress
recognized
contributing
factor
aging
progression
multiple
diseases
including
AD.
Increased
production
reactive
oxygen
species
(ROS)
associated
age-
disease-dependent
mitochondrial
function,
altered
metal
homeostasis,
reduced
antioxidant
defense
directly
affect
synaptic
activity
neurotransmission
neurons
leading
to
dysfunction.
In
addition,
molecular
targets
by
ROS
include
nuclear
DNA,
lipids,
proteins,
calcium
dynamics
cellular
architecture,
receptor
trafficking
endocytosis,
energy
homeostasis.
Abnormal
metabolism
turn
could
accumulation
amyloid-β
(Aβ)
hyperphosphorylated
Tau
protein,
which
independently
exacerbate
dysfunction
production,
thereby
vicious
cycle.
While
mounting
evidence
implicates
etiology,
clinical
trials
therapies
have
not
produced
consistent
results.
this
review,
we
will
discuss
role
oxidative
AD,
innovative
strategies
evolved
based
on
better
complexity
mechanisms
dual
play
health
disease.
Biomedical Reports,
Journal Year:
2016,
Volume and Issue:
4(5), P. 519 - 522
Published: March 15, 2016
Alzheimer's
disease
(AD)
is
the
most
common
cause
of
disability
in
individuals
aged
>65
years
worldwide.
AD
characterized
by
abnormal
deposition
amyloid
β
(Aβ)
peptide,
and
intracellular
accumulation
neurofibrillary
tangles
hyperphosphorylated
τ
protein
dementia.
The
neurotoxic
oligomer
Aβ
which
neuropathological
diagnostic
criterion
disease,
together
with
protein,
are
mediators
neurodegeneration
that
among
main
causative
factors.
However,
these
phenomena
mainly
initiated
enhanced
oxidative
stress,
a
process
referring
to
an
imbalance
between
antioxidants
oxidants
favour
oxidants.
This
can
occur
as
result
increased
free
radicals
or
decrease
antioxidant
defense,
being
species
contains
one
more
unpaired
electrons
its
outer
shell.
major
source
potent
reduction
molecular
oxygen
water,
initially
yields
superoxide
radical,
produces
hydrogen
peroxide
addition
electron.
highly
reactive
hydroxyl
radicals,
termed
(ROS)
react
lipids,
proteins,
nucleic
acids,
other
molecules
may
also
alter
their
structures
functions.
Thus,
tissues
organs,
particularly
brain,
vulnerable
organ,
affected
ROS
due
composition.
brain
largely
composed
easily
oxidizable
lipids
while
featuring
high
consumption
rate.
current
review
examined
role
stress
AD.
Frontiers in Neuroscience,
Journal Year:
2015,
Volume and Issue:
9
Published: Dec. 16, 2015
Together
with
aspartate,
glutamate
is
the
major
excitatory
neurotransmitter
in
brain.
Glutamate
binds
and
activates
both
ligand-gated
ion
channels
(ionotropic
receptors)
a
class
of
G-protein
coupled
receptors
(metabotropic
receptors).
Although
intracellular
concentration
brain
millimolar
range,
extracellular
kept
low
micromolar
range
by
action
amino
acid
transporters
that
import
aspartate
into
astrocytes
neurons.
Excess
may
lead
to
excitotoxicity
vitro
vivo
acute
insults
like
ischemic
stroke
via
overactivation
ionotropic
receptors.
In
addition,
chronic
has
been
hypothesized
play
role
numerous
neurodegenerative
diseases
including
amyotrophic
lateral
sclerosis,
Alzheimer's
disease
Huntington's
disease.
Based
on
this
hypothesis,
good
deal
effort
devoted
develop
test
drugs
either
inhibit
or
decrease
glutamate.
review,
we
provide
an
overview
different
pathways
are
thought
over-activation
glutamatergic
system
toxicity
neurodegeneration.
summarize
available
experimental
evidence
for
animal
models
diseases.
Frontiers in Molecular Neuroscience,
Journal Year:
2019,
Volume and Issue:
12
Published: Feb. 14, 2019
TAR
DNA
binding
protein
43
(TDP-43)
is
a
versatile
RNA/DNA
involved
in
RNA-related
metabolism.
Hyper-phosphorylated
and
ubiquitinated
TDP-43
deposits
as
inclusion
bodies
the
brain
spinal
cord
of
patients
with
motor
neuron
diseases:
amyotrophic
lateral
sclerosis
(ALS)
frontotemporal
lobar
degeneration
(FTLD).
While
majority
ALS
cases
(90-95%)
are
sporadic
(sALS),
among
familial
5-10%
involve
inheritance
mutations
TARDBP
gene
remaining
due
to
other
genes
such
as:
C9ORF72,
SOD1,
FUS,
NEK1
etc.
Strikingly
however,
(up
97%)
also
contain
deposited
neuronal
inclusions,
which
suggests
its
pivotal
role
pathology.
Thus,
unravelling
molecular
mechanisms
pathology,
seems
central
therapeutics,
hence,
we
comprehensively
review
current
understanding
TDP-43's
pathology
ALS.
We
discuss
roles
mutations,
cytoplasmic
mis-localization
aberrant
post-translational
modifications
Also,
evaluate
amyloid-like
vitro
aggregation,
physiological
versus
pathological
oligomerization
vivo,
liquid-liquid
phase
separation
(LLPS),
potential
prion-like
propagation
propensity
inclusions.
Finally,
describe
various
evolving
TDP-43-induced
toxicity
impairment
endocytosis
mitotoxicity
emerging
strategies
towards
disaggregation
therapeutics.
Proceedings of the National Academy of Sciences,
Journal Year:
1999,
Volume and Issue:
96(3), P. 846 - 851
Published: Feb. 2, 1999
Oxidative
stress
has
been
implicated
in
many
diseases.
The
chief
source
of
reactive
oxygen
species
within
the
cell
is
mitochondrion.
We
have
characterized
a
variety
biochemical
and
metabolic
effects
inactivation
mouse
gene
for
mitochondrial
superoxide
dismutase
(CD1-
Sod2
tm1Cje
).
mutant
mice
exhibit
tissue-specific
inhibition
respiratory
chain
enzymes
NADH-dehydrogenase
(complex
I)
succinate
dehydrogenase
II),
tricarboxylic
acid
cycle
enzyme
aconitase,
development
urine
organic
aciduria
conjunction
with
partial
defect
3-hydroxy-3-methylglutaryl-CoA
lyase,
accumulation
oxidative
DNA
damage.
These
results
indicate
that
increase
can
result
aberrations
features
reminiscent
myopathy,
Friedreich
ataxia,
lyase
deficiency.
The Journal of Cell Biology,
Journal Year:
2003,
Volume and Issue:
161(1), P. 41 - 54
Published: April 14, 2003
Alzheimer's
amyloid
precursor
protein
695
(APP)
is
a
plasma
membrane
protein,
which
known
to
be
the
source
of
toxic
beta
(Abeta)
peptide
associated
with
pathogenesis
disease
(AD).
Here
we
demonstrate
that
by
virtue
its
chimeric
NH2-terminal
signal,
APP
also
targeted
mitochondria
cortical
neuronal
cells
and
select
regions
brain
transgenic
mouse
model
for
AD.
The
positively
charged
residues
at
40,
44,
51
are
critical
components
mitochondrial-targeting
signal.
Chemical
cross-linking
together
immunoelectron
microscopy
show
mitochondrial
exists
in
inside
transmembrane
orientation
contact
translocase
proteins.
Mutational
studies
acidic
domain,
spans
sequence
220-290
APP,
causes
arrest
COOH-terminal
73-kD
portion
facing
cytoplasmic
side.
Accumulation
full-length
compartment
transmembrane-arrested
form,
but
not
lacking
caused
dysfunction
impaired
energy
metabolism.
These
results
show,
first
time,
under
some
physiological
pathological
conditions.