Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 15, 2023
Abstract
Type
2
diabetes
mellitus
(T2DM)
can
lead
to
dysfunction
in
the
brain's
glymphatic
system,
but
relationship
between
system
function
and
insulin
resistance
remains
unclear.
The
aim
of
this
study
was
investigate
connection
changes
T2DM
surrogate
marker
for
resistance,
Triglyceride-Glucose
Index
(TyG).
A
total
28
patients
(T2DM
group)
24
healthy
volunteers
(HC
were
included
study.
We
outlined
circular
regions
with
a
diameter
5.0
mm
on
diffusion
tensor
imaging
(DTI)
projection
association
fibers
body
lateral
ventricle.
compared
differences
DTI-ALPS
index
related
fiber
diffusivity
two
groups.
Additionally,
TyG
calculated
based
fasting
blood
glucose
triglyceride
levels.
Age
as
covariate
analyze
correlation
ALPS
patients.
results
showed
that
Dxproj
group
lower
than
those
HC
group,
while
Dyproj
higher
group.
In
index,
Dxassoc,
all
negatively
correlated.
decreased
may
be
associated
suggesting
lymphatic
damage,
white
matter
microstructure.
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(3)
Published: Jan. 17, 2025
We
applied
an
MRI
technique
diffusion
tensor
imaging
along
the
perivascular
space
(DTI-ALPS)
for
assessing
glymphatic
system
(GS)
in
a
genome-wide
association
study
(GWAS)
and
phenome-wide
(PheWAS)
of
40,486
European
individuals.
Exploratory
analysis
revealed
17
genetic
loci
significantly
associating
with
regional
DTI-ALPS
index.
found
58
genes,
including
SPPL2C
EFCAB5
,
which
prioritized
index
subtypes
associated
neurodegenerative
diseases.
PheWAS
241
traits
suggested
that
body
mass
blood
pressure
phenotypes
closely
related
to
GS
function.
Moreover,
we
detected
disrupted
function
44
625
predefined
disease
conditions.
Notably,
Mendelian
randomization
mediation
indicated
lower
was
risk
factor
ischemic
stroke
(odds
ratio
=
1.56,
P
0.028)
by
partly
mediating
obesity.
Results
provide
insights
into
architecture
mechanism
DIT-ALPS
highlight
its
great
clinical
value,
especially
cerebral
stroke.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Ischemic
stroke
impacts
glymphatic
function,
but
its
role
in
prognosis
remains
unclear.
This
study
evaluated
function
146
participants,
including
non-stroke
(healthy
controls,
n
=
48;
nonvascular
cognitive
impairment
patients,
47)
and
ischemic
cohorts
(n
51).
The
bilateral
diffusion
tensor
imaging
analysis
along
the
perivascular
space
(DTI-ALPS)
index,
choroid
plexus
(CP),
(PVS)
volume
ratio,
which
represent
system,
were
compared
across
two
between
pre-rehabilitation
(Time
1)
30
days
post-rehabilitation
2).
Post-stroke
(PSCI)
was
characterized
as
enduring
deficits
persisting
six
months
after
a
stroke.
Stroke
patients
exhibited
significantly
lower
DTI-ALPS
index
to
population
(P
<
0.05),
with
improvement
observed
on
infarct
side
following
rehabilitation
0.05).
of
at
Time
1
did
not
predict
poor
outcome
correlated
6-month
PSCI
These
results
indicate
that
diminishes
partially
recovering
post-rehabilitation,
suggest
could
serve
predictor
for
Frontiers in Neuroscience,
Journal Year:
2025,
Volume and Issue:
19
Published: May 9, 2025
Objective
To
investigate
the
efficacy
of
diffusion
tensor
imaging
(DTI)
in
assessing
motor
impairment
resulting
from
minor
basal
ganglia
hemorrhage
post-stereotactic
surgery.
Methods
A
total
104
patients
with
hemorrhages
(hematoma
volume
≤15
ml)
underwent
DTI
within
48
h
and
1
month
post-treatment.
Patients
were
divided
into
two
groups:
42
experimental
group,
receiving
stereotactic
surgery
medication,
62
control
medication
alone.
The
corticospinal
tract
(CST)
posterior
limb
internal
capsule
was
region
interest
(ROI)
for
mean
FA
values
on
both
sides.
Fugl-Meyer
function
(FMF)
scores
recorded
post-treatment,
Modified
Rankin
Scale
(MRS)
at
6
months.
Results
After
treatment,
FMF
affected
side
group
0.34
±
0.17
67.84
4.72,
respectively,
significantly
surpassing
those
which
0.21
0.06
45.38
2.25
(
P
<
0.05).
months
exhibited
MRS
10
cases
(23.81%)
grade
0,
12
(28.57%)
1,
16
(38.10%)
2,
2
(4.76%)
3,
4,
0
5.
In
contrast,
demonstrated
8
(12.90%)
(19.35%)
18
(29.03%)
15
(24.19%)
(9.68%)
3
(4.84%)
There
are
5
group.
showed
a
better
score
compared
to
Conclusion
can
accurately
evaluate
structural
integrity
CST
following
surgery,
particularly
regarding
pathways
involved
control,
providing
valuable
guidance
clinical
treatment.
Brain Sciences,
Journal Year:
2023,
Volume and Issue:
13(9), P. 1292 - 1292
Published: Sept. 7, 2023
This
study
investigates
the
impact
of
methadone
maintenance
treatment
(MMT)
on
brain
glymphatic
system
(GS)
in
opioid
addiction
China.
A
total
51
male
MMT
patients,
48
demographically
matched
healthy
controls
(HCs),
and
20
heroin
dependents
(HDs)
were
recruited
for
this
study.
The
GS
functioning
was
assessed
using
diffusion-tensor-imaging
analysis
along
perivascular
spaces
(DTI-ALPS
index)
bilateral
ALPS
divergency
(DivALPS).
Group
differences
analyzed
utilizing
ANOVA
two-sample
Journal of Stroke,
Journal Year:
2024,
Volume and Issue:
26(3), P. 415 - 424
Published: Aug. 29, 2024
Background
and
Purpose
This
study
aimed
to
investigate
early
changes
in
interstitial
fluid
(ISF)
flow
patients
with
severe
carotid
stenosis
after
angioplasty
stenting
(CAS).Methods
We
prospectively
recruited
participants
≥80%
undergoing
CAS
at
our
institute
between
October
2019
March
2023.
Magnetic
resonance
imaging
(MRI),
including
diffusion
tensor
(DTI),
the
Mini-Mental
State
Examination
(MMSE)
were
performed
3
days
before
CAS.
MRI
DTI
MMSE
conducted
within
24
hours
2
months
CAS,
respectively.
The
image
analysis
along
perivascular
space
(DTI-ALPS)
index
was
calculated
from
data
determine
ISF
status.
Increments
defined
as
ratio
of
difference
post-
preprocedural
values
values.Results
In
total,
102
(age:
67.1±8.9
years;
stenosis:
89.5%±5.7%)
longitudinal
evaluated.
DTI-ALPS
increased
(0.85±0.15;
0.85
[0.22]
vs.
0.86±0.14;
0.86
[0.21];
<i>P</i>=0.022),
did
score
(25.9±3.7;
24.0
[4.0]
26.9±3.4;
26.0
[3.0];
<i>P</i><0.001).
Positive
correlations
increments
found
all
(r<sub>s</sub>=0.468;
<i>P</i><0.001).Conclusion
An
24-hour
post-CAS
suggests
improvement
efficiency.
positive
correlation
2-month
that
may
contribute
long-term
cognitive