Single-cell sequencing reveals an important role of SPP1 and microglial activation in age-related macular degeneration
Shizhen Lei,
No information about this author
Mang Hu,
No information about this author
Zhongtao Wei
No information about this author
et al.
Frontiers in Cellular Neuroscience,
Journal Year:
2024,
Volume and Issue:
17
Published: Jan. 8, 2024
Purpose
To
investigate
the
role
of
senescence-related
cytokines
(SRCs)
in
pathophysiology
age-related
macular
degeneration
(AMD).
Design
The
whole
study
is
based
on
single-cell
and
bulk
tissue
transcriptomic
analysis
human
neuroretinas
with
or
without
AMD.
data
was
obtained
from
Gene-Expression
Omnibus
(GEO)
database.
Methods
For
analysis,
gene
expression
matrix
goes
through
quality
control
(QC)
filtering,
being
normalized,
scaled
integrated
for
downstream
analysis.
further
analyses
were
performed
using
Seurat
R
package
CellChat
package.
After
cell
type
annotation,
phenotype
functional
markers
microglia
investigated
cell-cell
communication
performed.
GSE29801
dataset
contains
neuroretina
(
n
=
118)
group
AMD
patients.
SPP1
subtypes
compared
by
Student’s
t
-test.
In
addition,
classified
into
SPP1-low
SPP1-high
groups
according
to
level
SPP1.
differentially
expressed
genes
between
these
two
subsequently
identified
pathway
enrichment
conducted.
Results
Secreted
phosphoprotein
1,
as
an
SRC,
revealed
be
highly
SPP1-receptor
signaling
activated
neuroretina.
associated
pro-inflammatory
phagocytic
state
microglia.
elevated
late
dry
wet
inflammatory
pathways
found
Conclusion
Our
findings
indicated
that
microglial
activation
might
play
important
Therefore,
serve
a
potential
therapeutic
target
More
vitro
vivo
studies
are
required
confirm
results
effect
SPP1-targeting
strategy.
Language: Английский
Identification of systemic biomarkers and potential drug targets for age-related macular degeneration
Shizhen Lei,
No information about this author
Mang Hu,
No information about this author
Zhongtao Wei
No information about this author
et al.
Frontiers in Aging Neuroscience,
Journal Year:
2024,
Volume and Issue:
16
Published: Feb. 1, 2024
Since
age-related
macular
degeneration
(AMD)
is
tightly
associated
with
aging
and
cellular
senescence,
objective
of
this
study
was
to
investigate
the
association
between
plasma
levels
senescence-related
proteins
(SRPs)
risk
AMD.
Language: Английский
An update on bone in diabetes
Ornpicha Laohajaroensombat,
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Methavee Poochanasri,
No information about this author
Parinya Samakkarnthai
No information about this author
et al.
Current Opinion in Endocrinology Diabetes and Obesity,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
Purpose
of
review
As
the
prevalence
diabetes
mellitus
(DM)
increases
due
to
urbanization,
aging
populations,
and
lifestyle
changes,
it
is
crucial
understand
mechanisms,
diagnosis,
treatment
diabetes-related
bone
disorders.
This
highlights
recent
advancements
in
field
explores
their
implications
for
clinical
practice
research.
Recent
findings
studies
have
elucidated
complex
interplay
between
health,
emphasizing
roles
advanced
glycation
end-products
(AGEs),
inflammation,
oxidative
stress,
senescence,
molecular
signaling
pathways
such
as
Wnt,
mammalian
target
rapamycin
(mTOR),
exosome-mediated
mechanisms.
Key
highlight
significance
marrow
adipose
tissue
(BMAT)
metabolism
impact
sarcopenia
on
fracture
risk.
Novel
diagnostic
tools,
including
miRNA
biomarkers
emerging
therapeutic
strategies
like
exosome-based
therapies
glycogen
synthase
kinase
3
beta
(GSK3β)
inhibitors,
offer
promising
opportunities
improving
health
diabetic
patients.
Summary
The
underscore
need
integrated
managing
complications.
Clinicians
should
prioritize
early
screening,
interventions,
personalized
pharmacological
treatments
mitigate
risk
improve
Future
research
focus
optimizing
tools
developing
targeted
address
unique
challenges
disorders
related
diabetes.
Language: Английский
AGEs (Advanced Glycation End-products) in bone come of age
Bone,
Journal Year:
2024,
Volume and Issue:
unknown, P. 117301 - 117301
Published: Oct. 1, 2024
Language: Английский
The synergistic effect of diabetes mellitus and osteoporosis on the all-cause mortality: a cohort study of an American population
Frontiers in Endocrinology,
Journal Year:
2024,
Volume and Issue:
14
Published: Jan. 24, 2024
Background
The
increasing
incidence
of
diabetes
mellitus
(DM)
and
osteoporosis
have
different
effects
on
prognosis.
two
often
co-occur,
so
we
aimed
to
investigate
whether
DM
an
effect
all-cause
death
a
synergistic
effect.
Methods
This
study
analyzed
18,658
subjects
from
five
cycles
the
National
Health
Nutrition
Examination
Survey
(NHANES).
primary
endpoint
was
death.
were
divided
into
four
groups
based
presence
or
absence
osteoporosis.
Survival
curves
Cox
regression
analysis
NHANES
recommended
weights
used
assess
risk
between
diseased
non-diseased
calculate
additive
interactions
there
Results
group
with
had
lowest
survival
rate.
After
full
adjustment
for
confounders,
patients
alone
30%
higher
compared
those
without
(HR:
1.30,
95%CI:
1.09-1.55).
Patients
67%
1.67,
95%CI:1.16-2.43)
combined
127%
(HR:2.27,
1.57-3.27).
There
interaction
[RERI
(95%CI):
1.03(0.55-1.50)]
excess
mortality
38%
[AP
(95%
CI)
0.38(0.30-0.46)].
Conclusions
might
be
mortality,
both
conditions
Language: Английский
Senescence-related genes and proteins in the development of Alzheimer’s disease: evidence from transcriptomic and Mendelian randomization analysis
Frontiers in Aging Neuroscience,
Journal Year:
2024,
Volume and Issue:
16
Published: Aug. 2, 2024
Alzheimer's
disease
(AD)
is
a
common
neurodegenerative
disease,
which
can
lead
to
cognitive
impairment
and
dementia.
Since
AD
tightly
associated
with
aging
cellular
senescence,
objective
of
this
study
was
investigate
the
association
between
senescence-related
genes
proteins
(SRGs
SRPs)
development
AD.
Language: Английский