Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Ноя. 14, 2023
Abstract
Purpose
The
objective
of
this
research
is
to
investigate
the
ocular
neural
pathway
in
individuals
affected
by
pituitary
adenoma
(PA),
combining
two
distinct
methods:
diffusion
tensor
imaging
(DTI)
and
optical
coherence
tomography
angiography
(OCTA).
relationship
between
retinal
blood
flow
density
fiber
conduction
function
these
patients
explored.
Methods
case
group
comprised
24
who
had
been
recently
identified
pathologically
verified
as
suffering
from
PA.
A
control
was
assembled,
consisting
subjects
were
aligned
with
terms
age
gender.
All
participants
underwent
OCTA,
(OCT),
DTI
examinations.
Differences
optic
disc,
macular
OCTA
parameters,
OCT
parameters
groups
compared,
correlations
discussed.
Results
parameters:
In
group,
nerve,
chiasm,
tract,
radiation
showed
a
decline
their
fractional
anisotropy
(FA)
values
when
juxtaposed
group.
Concurrently,
apparent
coefficient
(ADC)
for
nerve
escalated
comparison
Parameters
OCTA:
region
macula,
across
all
layers,
barring
deep
capillary
plexus
(DCP),
found
be
lesser
subject
contrasted
reference
There
notable
radial
peripapillary
capillaries
(RPCP)
superficial
vascular
complex
(SVC)
well
set
against
Correlation:
statistically
significant
correlation
existed
layers
area
radiation.
Importantly,
strong
associations
network
(SVN)
ADC
measurement
FA
This
suggests
that
might
serve
biomarkers
assessing
visual
pathway.
Conclusion
can
assess
PA
patients,
while
quantifies
function.
combination
techniques
offers
novel
approach
studying
injury
Academic Radiology,
Год журнала:
2024,
Номер
31(8), С. 3366 - 3383
Опубликована: Апрель 12, 2024
Rationale
and
ObjectivesGliomas
are
aggressive
brain
tumors
with
a
poor
prognosis.
Assessing
treatment
response
is
challenging
because
magnetic
resonance
imaging
(MRI)
may
not
distinguish
true
progression
(TP)
from
pseudoprogression
(PsP).
This
review
aims
to
discuss
techniques
liquid
biopsies
used
TP
PsP.Materials
MethodsThis
synthesizes
existing
literature
examine
advances
in
techniques,
such
as
diffusion
(MRDI),
perfusion-weighted
(PWI)
MRI,
biopsies,
for
identifying
or
PsP
through
tumor
markers
tissue
characteristics.ResultsAdvanced
including
MRDI
PWI
have
proven
effective
delineating
properties,
offering
valuable
insights
into
glioma
behavior.
Similarly,
biopsy
has
emerged
potent
tool
tumor-derived
biofluids,
non-invasive
glimpse
evolution.
Despite
their
promise,
these
methodologies
grapple
significant
challenges.
Their
sensitivity
remains
inconsistent,
complicating
the
accurate
differentiation
between
PSP.
Furthermore,
absence
of
standardized
protocols
across
platforms
impedes
reliability
comparisons,
while
inherent
biological
variability
adds
complexity
data
interpretation.ConclusionTheir
potential
applications
been
highlighted,
but
gaps
remain
before
routine
clinical
use.
Further
research
needed
develop
validate
promising
methods
distinguishing
gliomas.
Gliomas
PsP.
characteristics.
Advanced
interpretation.
Brain Sciences,
Год журнала:
2025,
Номер
15(2), С. 108 - 108
Опубликована: Янв. 23, 2025
Background/Objectives:
Recent
studies
indicate
extensive
shared
white
matter
(WM)
abnormalities
between
bipolar
disorder
(BD)
and
schizophrenia
(SZ).
However,
the
heterogeneity
of
WM
in
BD
terms
presence
psychosis
remains
a
critical
issue
for
exploring
boundaries
SZ.
Previous
comparing
microstructures
psychotic
nonpsychotic
BDs
(PBD
NPBD)
have
resulted
limited
findings,
probably
due
to
subtle
changes,
emphasizing
need
further
investigation.
Methods:
Diffusion
tensor
imaging
measures
were
obtained
from
8
individuals
with
PBD,
NPBD,
22
healthy
controls
(HC),
matched
age,
gender,
handedness,
educational
years.
Group
comparisons
conducted
using
tract-based
spatial
statistics
(TBSS).
The
most
significant
voxels
showing
differences
PBD
HC
TBSS
analyses
defined
as
TBSS-ROI
subsequently
analyzed.
Results:
Increased
radial
diffusivity
(RD)
compared
NPBD
(p
<
0.006;
d
=
1.706)
was
observed
TBSS-ROI,
distributed
confined
regions
some
tracts,
including
body
corpus
callosum
(bCC),
left
genu
CC
(gCC),
anterior
superior
corona
radiata
(ACR
SCR).
Additionally,
exhibited
age-associated
RD
increases
(R2
0.822,
p
0.001),
whereas
greater
remained
consistent
across
middle
age.
Conclusions:
Preliminary
findings
this
small
sample
suggest
severe
frontal
disconnection
interhemispheric
communication,
fronto-limbic
circuits,
cortico-striatal-thalamic
loop
NPBD.
While
these
results
require
replication
validation
larger
controlled
samples,
they
provide
insights
into
pathophysiology
which
is
diagnostically
located
at
boundary
Journal of Biomedical and Sustainable Healthcare Applications,
Год журнала:
2023,
Номер
unknown, С. 118 - 128
Опубликована: Июль 5, 2023
In
comparison
to
other
natural
systems,
the
temporal
dynamics
of
human
brain's
growth,
structure,
and
function
are
notably
intricate.
The
brain
is
comprised
an
estimated
86.1
8.0
billion
neurons
a
comparable
non-neural
glial
cells
number.
Additionally,
contains
neuronal
systems
with
over
100
trillion
connections.
modeling,
analysis,
comprehension
these
complex
structures
require
use
code
automation.
Neuroinformatics
methodologies
employed
manage,
retrieve,
integrate
copious
quantities
data
produced
through
clinical
documentation,
scientific
literature,
specialized
databases.
Conversely,
computational
neuroscience,
which
draws
heavily
upon
fields
biology,
physics,
mathematics,
computation,
tackles
issues.
interdisciplinary
field
that
integrates
neuroscience
neuroscientific
experimentation.
This
paper
functions
as
introductory
guide
for
individuals
who
lack
familiarity
domains
neuroinformatics
along
their
consistentsophisticated
software,
resources,
tools.
Medicina,
Год журнала:
2023,
Номер
60(1), С. 77 - 77
Опубликована: Дек. 30, 2023
Prostate
cancer
is
the
second
leading
cause
of
death
in
men
United
States.
Androgen
deprivation
therapy
(ADT)
currently
primary
treatment
for
metastatic
prostate
cancer,
and
some
studies
have
shown
that
use
anti-androgen
drugs
related
to
a
reduction
cognitive
function,
mood
changes,
diminished
quality
life,
dementia,
possibly
Alzheimer’s
disease.
ADT
has
potential
physiological
effects
such
as
white
matter
integrity
negative
impact
on
hypothalamic
functions
due
lowering
testosterone
levels
or
blockade
downstream
androgen
receptor
signaling
by
first-
second-generation
drugs.
A
comparative
analysis
patients
undergoing
Alzheimer
identified
over
30
shared
genes,
illustrating
common
ground
mechanistic
underpinning
symptomatology.
The
purpose
this
review
was
investigate
mood,
well
analyze
relationship
between
evaluation
patient
ability
via
neurocognitive
testing
described.
Future
should
further
explore
connection
among
deficits,
disturbances,
changes
occur
when
hormonal
balance
altered.
Neuropsychopharmacology,
Год журнала:
2024,
Номер
49(5), С. 814 - 823
Опубликована: Фев. 8, 2024
Abstract
Patients
with
bipolar
disorder
(BD)
show
alterations
in
both
gray
matter
volume
(GMV)
and
white
(WM)
integrity
compared
healthy
controls
(HC).
However,
it
remains
unclear
whether
the
phenotypically
distinct
BD
subtypes
(BD-I
BD-II)
also
exhibit
brain
structural
differences.
This
study
investigated
GMV
WM
differences
between
HC,
BD-I,
BD-II,
along
clinical
genetic
associations.
N
=
73
n
63
BD-II
patients
136
matched
HC
were
included.
Using
voxel-based
morphometry
tract-based
spatial
statistics,
main
effects
of
group
fractional
anisotropy
(FA)
analyzed.
Associations
features
or
FA
calculated
using
regression
models.
For
but
not
GMV,
we
found
significant
groups.
BD-I
showed
lower
(
p
tfce-FWE
0.006),
primarily
anterior
corpus
callosum.
Compared
exhibited
widespread
clusters
<
0.001),
including
almost
all
major
projection,
association,
commissural
fiber
tracts.
demonstrated
although
less
pronounced
0.049).
The
results
remained
unchanged
after
controlling
for
features,
which
no
independent
associations
emerged.
Our
findings
suggest
that,
at
a
neurobiological
level,
may
reflect
degrees
disease
expression,
increasing
microstructure
disruption
from
to
BD-I.
differential
magnitude
microstructural
was
clearly
linked
variables.
These
should
be
considered
when
discussing
classification
within
spectrum
affective
disorders.
Human Brain Mapping,
Год журнала:
2024,
Номер
45(13)
Опубликована: Сен. 1, 2024
Insufficient
sleep
compromises
cognitive
performance,
diminishes
vigilance,
and
disrupts
daily
functioning
in
hundreds
of
millions
people
worldwide.
Despite
extensive
research
revealing
significant
variability
vigilance
vulnerability
to
deprivation,
the
underlying
mechanisms
these
individual
differences
remain
elusive.
Locus
coeruleus
(LC)
plays
a
crucial
role
regulation
sleep-wake
cycles
has
emerged
as
potential
marker
for
deprivation.
In
this
study,
we
investigate
whether
LC
microstructural
integrity,
assessed
by
fractional
anisotropy
(FA)
through
diffusion
tensor
imaging
(DTI)
at
baseline
before
can
predict
impaired
psychomotor
test
(PVT)
performance
during
deprivation
cohort
60
healthy
individuals
subjected
rigorously
controlled
in-laboratory
study.
The
findings
indicate
that
with
high
FA
experience
less
impairment
from
compared
those
low
FA.
accounts
10.8%
variance
sleep-deprived
PVT
lapses.
Importantly,
relationship
between
is
anatomically
specific,
suggesting
integrity
may
serve
biomarker
loss.