bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 6, 2024
Abstract
Despite
effective
antiretroviral
therapy
(ART),
transcriptionally
competent
HIV-1
reservoirs
persist
and
contribute
to
persistent
immune
activation
in
people
living
with
HIV
(PWH).
HIV-1-infected
macrophages
are
important
mediators
of
chronic
innate
activation,
though
mechanisms
remain
unclear.
We
previously
reported
that
nuclear
export
cytoplasmic
expression
intron-containing
RNA
(icRNA)
activates
mitochondrial
antiviral
signaling
protein
(MAVS)-mediated
type
I
interferon
(IFN)
responses
macrophages.
In
this
study,
we
demonstrate
an
essential
role
melanoma
differentiation-associated
5
(MDA5)
sensing
icRNA
promoting
MAVS-dependent
IRF5
Suppression
MDA5,
but
not
RIG-I
nor
disruption
endosomal
TLR
pathway,
abrogated
icRNA-induced
IFN
IP-10
Furthermore,
induction
upon
by
MDA5
was
uniquely
dependent
on
IRF5.
Additionally,
monocytes
MDMs
from
older
(>50
years)
individuals
exhibit
constitutively
higher
levels
compared
younger
(<35
individuals,
induced
significantly
enhanced
macrophages,
which
attenuated
ablation
suggesting
functions
as
a
major
mediator
pro-inflammatory
response
downstream
MDA5-dependent
sensing,
dysregulation
might
inflammation
PWH.
AIDS and Behavior,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Understanding
positive
psychological
factors
(PPFs;
internal
strengths,
socioemotional
support)
that
promote
optimal
health
outcomes
among
people
with
HIV
(PWH)
is
increasingly
important.
122
PWH
and
98
without
(PWoH)
were
included
in
multivariable
regressions,
testing
interactions
between
status
PPFs
on
7
cognitive
domains
2
daily
functioning
outcomes,
controlling
for
depressive
symptoms.
Overall,
higher
strengths
related
to
better
learning
memory,
whereas
support
was
processing
speed
psychomotor
speed.
had
a
stronger
relationship
verbal
fluency
than
PWoH.
associated
fewer
impairments;
however,
only
PWoH
showed
functional
declines
support.
may
require
greater
accommodate
an
increased
burden
of
comorbidities
leading
difficulties.
Among
PWH,
bolstering
improve
cognition;
particularly
benefit
functioning.
GeroScience,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Glycation
is
a
class
of
modifications
arising
from
non-enzymatic
reactions
reducing
sugars
with
proteins,
lipids,
and/or
DNA,
generating
advanced
glycation
end-products
(AGEs).
AGEs
are
linked
to
many
age-related
comorbidities.
In
response
HIV-1
infection,
activated
T-cells
and
macrophages
shift
their
predominate
metabolism
oxidative
phosphorylation
glycolysis.
Increased
glycolytic
flux
enhances
AGE
formation,
which
may
increase
this
prospective,
multicenter
cohort
study
antiretroviral
therapy
treated
people
HIV,
we
explored
predictive
associations
by
baseline
plasma
concentrations
corresponding
detoxification
metabolites,
incident
comorbidities
mortality.
included
dicarbonyl
sugars:
3-deoxyglucosone,
glyoxal,
methylglyoxal.
Methylglyoxal-derived
metabolites
carboxyethyl-arginine,
carboxyethyl-lysine,
methylglyoxal
hydroimidazolone-1.
Detoxification
reduced
oxidized
glutathione,
the
glyoxalase
cycle
products
lactoyl-glutathione
lactoyl-Lysine
modified
proteins.
Plasma
was
collected
at
entry,
in
fasting
state,
assayed
liquid
chromatography-mass
spectroscopy.
Incident
clinical
outcomes
diabetes,
chronic
kidney
disease,
hypertension,
neurocognitive
impairment,
peripheral
neuropathy,
frailty,
fractures,
recurrent
falls,
all-cause
Among
376
participants,
higher
derived
predicted
increased
risks
while
3-deoxyglucosone
an
risk
neuropathy.
By
contrast,
or
lactoyl-glutathione,
proteins
lower
These
findings
support
growing
experimental
evidence
potential
mitigate
declines
interventions
that
reduce
glutathione.
Clinical Science,
Journal Year:
2022,
Volume and Issue:
136(1), P. 61 - 80
Published: Jan. 1, 2022
Abstract
Massive
CD4+
T-cell
depletion
as
well
sustained
immune
activation
and
inflammation
are
hallmarks
of
Human
Immunodeficiency
Virus
(HIV)-1
infection.
In
recent
years,
an
emerging
concept
draws
intriguing
parallel
between
HIV-1
infection
aging.
Indeed,
many
the
alterations
that
affect
innate
adaptive
subsets
in
HIV-infected
individuals
reminiscent
process
aging,
characteristic
old
age.
These
changes,
which
presumed
cause
is
systemic
established
patients,
likely
participate
immuno-incompetence
described
with
HIV
progression.
With
success
antiretroviral
therapy
(ART),
HIV-seropositive
patients
can
now
live
for
years
despite
chronic
viral
However,
acquired
immunodeficiency
syndrome
(AIDS)-related
opportunistic
infections
have
given
way
to
diseases
leading
death
since
Therefore,
comparison
infected
uninfected
elderly
goes
beyond
sole
onset
immunosenescence
extends
deterioration
several
physiological
functions
related
light
this
observation,
it
interesting
understand
precise
link
aging
figure
out
how
best
care
people
living
(PLWH).
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2025,
Volume and Issue:
15
Published: April 22, 2025
With
the
advent
of
antiretroviral
therapy
(ART)
that
effectively
suppresses
HIV
replication,
and
reduced
AIDS
progression,
clinical
spectrum
infection
has
dramatically
changed.
Currently,
people
living
with
(PLWH)
who
receive
ART
have
a
nearly
normal
prognostic
survival,
yet
they
still
experience
higher
morbidity
mortality
than
age-matched
uninfected
subjects.
The
risk
death
in
PLWH
is
linked
to
persistence
residual
systemic
inflammation
T-cell
activation.
These
factors
contribute
accelerated
aging
incidence
HIV-associated
non-AIDS
conditions,
thereby
presenting
new
diagnostic
therapeutic
challenges.
This
shifting
paradigm
associates
cardiovascular
disease
(CVD),
such
as
stroke,
acute
myocardial
infarction
sudden
cardiac
death,
stark
contrast
opportunistic
infections.
coronary
several
folds
general
population.
Study
United
States
(US)
certificates
listing
shows
deaths
from
CVD
doubled
between
1996
2006.
will
become
an
even
more
prominent
comorbidity
considering
50%
US
are
over
50
years
old,
age
frequently
CVD,
complications
frequent
urban
African-Americans
Hispanics,
which
disproportionately
affected
by
HIV.
Therefore,
reducing
overall
these
primary
challenge
management
chronic
infection.
Not
surprisingly,
REPRIEVE
trial
showed
substantial
benefit
statins
PLWH,
current
guidelines
include
statin
administration
PLWH.
Nonhuman
primate
(NHP)
models
for
comorbidities
associated
currently
available
their
use
testing
approaches
aimed
at
countering
effects
hypercoagulability
discussed.
Their
can
be
tremendous
help
understand
etiology,
pathophysiology,
determinants
poorly
understood.
Use
NHP
could
dissecting
relative
contribution
virus,
behavioral
factors,
risk,
having
potential
us
establish
strategic
controlling
HIV-related
CVD.
HIV Medicine,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 28, 2025
Abstract
Introduction
Cytomegalovirus
(CMV)
infection
is
common
among
people
with
HIV
(PWH),
and
may
be
associated
negative
outcomes.
We
aimed
to
identify
the
seroprevalence
of
CMV
between
01
January
1998
June
2022
PWH
accessing
care
at
Southern
Alberta
Clinic
(SAC)
risk
factors.
also
assess
impact
seropositivity
on
CD4+
T‐cells
CD4+/CD8+
ratio
recovery
who
maintain
viral
suppression.
Methods
Poisson
regression
models
robust
variance
estimated
crude
adjusted
prevalence
ratios
95%
confidence
intervals
factors
for
seronegativity.
Among
maintaining
suppression,
trends
in
median
T‐cell
count
were
visualized,
continuous
time‐to‐event
Cox
proportional
hazard
hazards
(aHR)
cell
≥500
cells/mm
3
>1
10
years
by
serostatus.
Results
3249
PWH,
2954
(91%)
seropositive.
seronegativity
was
younger
ages,
male
sex,
non‐Hispanic
white
race
an
education
≥12
years.
While
did
not
affect
following
suppression
(aHR
1.15
[0.89–1.48]),
it
a
greater
likelihood
normalization
2.38
[1.85–3.07])
follow‐up.
Conclusions
coinfection
PWH.
found
that
positivity
while
recovery,
reduced
recovery.
This
suggests
association
chronic
infection‐mediated
immune
activation
inflammation
Antimicrobial Agents and Chemotherapy,
Journal Year:
2022,
Volume and Issue:
66(4)
Published: March 16, 2022
Combination
antiretroviral
therapy
(cART)
dramatically
changed
the
face
of
HIV/AIDS
pandemic,
making
it
one
most
prominent
medical
breakthroughs
past
3
decades.
However,
as
life
span
persons
living
with
HIV
(PLWH)
continues
to
approach
that
general
population,
same
cannot
be
said
regarding
their
quality
life.
Clinical Infectious Diseases,
Journal Year:
2021,
Volume and Issue:
73(11), P. 1982 - 1991
Published: June 17, 2021
Abstract
Background
Accelerated
epigenetic
aging
using
DNA
methylation
(DNAm)-based
biomarkers
has
been
reported
in
people
with
human
immunodeficiency
virus
(HIV,
PWH),
but
limited
data
are
available
among
African
Americans
(AA),
women,
and
older
PWH.
Methods
DNAm
was
measured
Illumina
EPIC
Arrays
for
107
(69
PWH
38
HIV-seronegative
controls)
AA
adults
≥60
years
New
York
City.
Six
DNAm-based
of
were
estimated:
(1)
age
acceleration
(EAA),
(2)
extrinsic
(EEAA),
(3)
intrinsic
(IEAA),
(4)
GrimAge,
(5)
PhenoAge,
(6)
DNAm-estimated
telomere
length
(DNAm-TL).
The
National
Institutes
Health
(NIH)
Toolbox
Cognition
Battery
(domains:
executive
function,
attention,
working
memory,
processing
speed,
language)
Montreal
Cognitive
Assessment
(MoCA)
administered.
Participants
assessed
frailty
by
the
Fried
criteria.
Results
control
groups
did
not
differ
sex,
chronological
age,
or
ethnicity.
In
total,
83%
had
a
viral
load
<50
copies/mL,
94%
recent
CD4
≥200
cells/µL.
group
higher
EAA,
EEAA,
lower
DNAm-TL
compared
to
controls.
IEAA
different
between
groups.
For
PWH,
there
significant
negative
correlations
memory
PhenoAge
attention.
No
associations
detected.
Conclusions
Evidence
observed
aging.
There
no
evidence
independent
cell
type
composition
(IEAA)
associated
HIV,
this
measure
decreased
cognitive
function