Cellular and Molecular Immunology,
Journal Year:
2023,
Volume and Issue:
21(2), P. 134 - 143
Published: Dec. 25, 2023
Abstract
Numerous
pathogens
can
infect
the
olfactory
tract,
yet
pandemic
caused
by
SARS-CoV-2
has
strongly
emphasized
importance
of
mucosa
as
an
immune
barrier.
Situated
in
nasal
passages,
is
directly
exposed
to
environment
sense
airborne
odorants;
however,
this
also
means
it
serve
a
direct
route
entry
from
outside
world
into
brain.
As
result,
olfactotropic
infections
have
serious
consequences,
including
dysfunction
system,
CNS
invasion,
dissemination
lower
respiratory
and
transmission
between
individuals.
Recent
research
shown
that
distinctive
response
needed
protect
neuronal
mucosal
tissue.
A
better
understanding
innate,
adaptive,
structural
barriers
develop
effective
therapeutics
vaccines
against
microbes
such
SARS-CoV-2.
Here,
we
summarize
ramifications
infection
mucosa,
review
subsequent
response,
discuss
important
areas
future
for
immunity
infectious
disease.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2022,
Volume and Issue:
12
Published: Oct. 21, 2022
As
new
pathogens
emerge,
challenges
must
be
faced.
This
is
no
different
in
infectious
disease
research,
where
identifying
the
best
tools
available
laboratories
to
conduct
an
investigation
can,
at
least
initially,
particularly
complicated.
However,
context
of
emerging
virus,
such
as
SARS-CoV-2,
which
was
recently
detected
China
and
has
become
a
global
threat
healthcare
systems,
developing
models
infection
pathogenesis
urgently
required.
Cell-based
approaches
are
crucial
understanding
coronavirus
biology,
growth
kinetics,
tropism.
Usually,
laboratory
cell
lines
first
line
experimental
study
viral
pathogenicity
perform
assays
aimed
screening
antiviral
compounds
efficient
blocking
replication
viruses,
saving
time
resources,
reducing
use
animals.
determining
ideal
type
can
challenging,
especially
when
several
researchers
have
adapt
their
studies
specific
requirements.
review
strives
guide
scientists
who
venturing
into
studying
SARS-CoV-2
help
them
choose
right
cellular
models.
It
revisits
basic
concepts
virology
presents
currently
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: Nov. 23, 2023
The
reduced
pathogenicity
of
the
omicron
BA.1
sub-lineage
compared
to
earlier
variants
is
well
described,
although
whether
such
attenuation
retained
for
later
like
BA.5
and
XBB
remains
controversial.
We
show
that
isolates
were
significantly
more
pathogenic
in
K18-hACE2
mice
than
a
isolate,
showing
increased
neurotropic
potential,
resulting
fulminant
brain
infection
mortality,
similar
seen
original
ancestral
isolates.
also
infected
human
cortical
organoids
greater
extent
In
brains
mice,
neurons
main
target
infection,
neuronal
progenitor
cells
immature
infected.
results
herein
suggest
evolving
may
have
increasing
potential.
BMJ,
Journal Year:
2023,
Volume and Issue:
unknown, P. e073923 - e073923
Published: Aug. 18, 2023
Abstract
Although
neurological
complications
of
SARS-CoV-2
infection
are
relatively
rare,
their
potential
long
term
morbidity
and
mortality
have
a
significant
impact,
given
the
large
numbers
infected
patients.
Covid-19
is
now
in
differential
diagnosis
number
common
syndromes
including
encephalopathy,
encephalitis,
acute
demyelinating
encephalomyelitis,
stroke,
Guillain-Barré
syndrome.
Physicians
should
be
aware
pathophysiology
underlying
these
presentations
to
diagnose
treat
patients
rapidly
appropriately.
good
evidence
has
been
found
for
neurovirulence,
neuroinvasive
neurotropic
limited.
The
most
immune
mediated
vascular,
or
both.
A
proportion
developed
covid,
which
can
include
neuropsychiatric
presentations.
mechanisms
covid
remain
unclear.
longer
consequences
with
covid-19
on
brain,
particularly
terms
neurodegeneration,
will
only
become
apparent
time
follow-up.
BMJ Open,
Journal Year:
2024,
Volume and Issue:
14(2), P. e079267 - e079267
Published: Feb. 1, 2024
Objectives
Mental
health
disorders
(MHD)
rank
third
for
US
adult
hospitalisations.
Given
the
substantial
prevalence
of
‘Long
COVID’
in
SARS-CoV-2
survivors,
this
study
aims
to
assess
its
association
with
increased
MHD
risk
using
extensive
real-world
data.
Design
A
retrospective
cohort
propensity
score
matching
was
conducted.
We
used
International
Classification
Diseases,
10th
Revision
codes
identify
individuals
Long
COVID
status
and
COVID-19
histories.
Multivariable
stratified
Cox
proportional
hazards
regression
analysis
conducted
determine
MHD.
Setting
Data
were
sourced
from
TriNetX
database,
spanning
records
1
October
2021
16
April
2023.
Participants
Two
distinct
cohorts
established:
one
comprising
diagnosed
another
no
history
or
COVID-19.
At
start
study,
none
participants
had
a
recorded
Primary
secondary
outcome
measures
The
main
interest
composite
diagnosis
Secondary
outcomes
individual
mental
conditions.
Results
included
43
060
control
without
4306
participants,
demonstrating
well-balanced
distribution
across
all
covariates.
After
adjusting
4
demographic
factors
10
comorbidities,
associated
(adjusted
HR,
aHR
2.60;
95%
CI
2.37
2.85).
In
subgroup
analysis,
major
depression
disorder
(aHR
3.36;
2.82
4.00)
generalised
anxiety
3.44;
2.99
3.96).
Conclusions
large
an
incident
impact
is
significant
considering
vast
number
patients
COVID.
Enhanced
screening
among
survivors
should
be
priority.
Frontiers in Immunology,
Journal Year:
2022,
Volume and Issue:
13
Published: July 28, 2022
Recent
epidemiological
studies
show
a
noticeable
correlation
between
chronic
microbial
infections
and
neurological
disorders.
However,
the
underlying
mechanisms
are
still
not
clear
due
to
biological
complexity
of
multicellular
multiorgan
interactions
upon
infections.
In
this
review,
we
infection
leading
neurodegeneration
mediated
by
interconnections
neuroinflammation.
Firstly,
highlight
three
inter-organ
communications
as
possible
routes
from
sites
brain:
nose-brain
axis,
lung-brain
gut-brain
axis.
Next,
described
crosstalk
microglia
astrocytes
pathogenic
infection.
Finally,
our
study
indicates
how
neuroinflammation
is
critical
player
in
pathogen-mediated
neurodegeneration.
Taken
together,
envision
that
antibiotics
targeting
neuro-pathogens
could
be
potential
therapeutic
strategy
for
Trends in Neurosciences,
Journal Year:
2023,
Volume and Issue:
46(11), P. 953 - 970
Published: Sept. 6, 2023
Circulation
of
highly
pathogenic
avian
influenza
(HPAI)
H5Nx
viruses
the
A/Goose/Guangdong/1/96
lineage
in
birds
regularly
causes
infections
mammals,
including
humans.
In
many
mammalian
species,
are
associated
with
severe
neurological
disease,
a
unique
feature
HPAI
compared
other
A
viruses.
Here,
we
provide
an
overview
neuropathogenesis
virus
infection
centered
on
three
aspects:
neuroinvasion,
neurotropism,
and
neurovirulence.
We
focus
vitro
studies,
as
well
studies
naturally
or
experimentally
infected
mammals.
Additionally,
discuss
contribution
viral
factors
to
efficacy
intervention
strategies
prevent
neuroinvasion
development
disease.