PubMed,
Journal Year:
2021,
Volume and Issue:
92(S6), P. e2021451 - e2021451
Published: Oct. 1, 2021
Vitamin
D
is
known
to
modulate
immune
response
and
its
deficiency
was
associated
with
respiratory
distress
in
patients
hospitalized
for
pneumonia.
Nevertheless,
numerous
reviews
on
vitamin
COVID-19
have
shown
conflicting
results,
as
previously
reported
also
other
diseases
(e.g.,
influenza).This
umbrella
review
aims
assess
whether
low
serum
25-OHD
susceptibility
COVID
19,
their
severity,
mortality.
A
total
of
1559
studies
were
excluded
after
the
title,
abstract
full-text
articles
screening
9
papers
included
this
review:
2
systematic
7
metanalysis.The
findings
that
summarized
from
5
WHO
regions
(European
Region,
Region
Americas,
South-East
Asia
Eastern
Mediterranean
Western
Pacific
Region)
exclusion
only
African
region,
show
levels
are
higher
infection
risks
COVID-19.Although
indicate
a
potential
role
severity
showing
an
association
between
supplementation
however,
more
robust
data
randomized
controlled
trials
further
needed
confirm
possible
mortality
rates.
Nutrients,
Journal Year:
2023,
Volume and Issue:
15(5), P. 1234 - 1234
Published: Feb. 28, 2023
COVID-19
symptoms
vary
from
asymptomatic
cases
to
moderate
and
severe
illness
with
patients
needing
hospitalization
intensive
care
treatment.
Vitamin
D
is
associated
severity
of
viral
infections
has
an
immune-modulatory
effect
in
immune
response.
Observational
studies
showed
a
negative
association
low
vitamin
levels
mortality
outcomes.
In
this
study,
we
aimed
determine
whether
daily
supplementation
during
unit
(ICU)
stay
affects
clinically
relevant
Patients
disease
need
respiratory
support
admitted
the
ICU
were
eligible
for
inclusion.
randomized
into
one
two
groups:
intervention
group
received
control
did
not
receive
supplementation.
total,
155
randomized:
78
77
group.
There
was
no
statistically
significant
difference
number
days
spent
on
support,
although
trial
underpowered
main
outcome.
any
secondary
outcomes
analyzed
between
groups.
Our
study
suggests
benefit
International Journal of Molecular Sciences,
Journal Year:
2021,
Volume and Issue:
22(16), P. 8988 - 8988
Published: Aug. 20, 2021
Severe
acute
respiratory
syndrome
coronavirus
2
is
a
new,
highly
pathogenic
virus
that
has
recently
elicited
global
pandemic
called
the
2019
disease
(COVID-19).
COVID-19
characterized
by
significant
immune
dysfunction,
which
caused
strong
but
unregulated
innate
immunity
with
depressed
adaptive
immunity.
Reduced
and
delayed
responses
to
interferons
(IFN-I/IFN-III)
can
increase
synthesis
of
proinflammatory
cytokines
extensive
cell
infiltration
into
airways,
leading
pulmonary
disease.
The
development
effective
treatments
for
severe
patients
relies
on
our
knowledge
pathophysiological
components
this
imbalanced
response.
Strategies
address
response
factors
will
be
essential.
Significant
efforts
are
currently
underway
develop
vaccines
against
SARS-CoV-2.
vaccines,
such
as
inactivated
DNA,
mRNA,
protein
subunit
have
already
been
applied
in
clinical
use.
Various
display
different
levels
effectiveness,
it
important
continue
optimize
update
their
composition
order
effectiveness.
However,
due
continuous
emergence
variant
viruses,
improving
general
public
may
also
effectiveness
vaccines.
Many
observational
studies
demonstrated
serum
vitamin
D
inversely
correlated
incidence
or
severity
COVID-19.
Extensive
evidence
shown
supplementation
could
vital
mitigating
progression
reduce
its
severity.
Vitamin
defends
SARS-CoV-2
through
complex
mechanism
interactions
between
modulation
reactions,
ACE2
expression,
inhibition
renin-angiotensin
system
(RAS).
remains
unclear
whether
Vit-D
plays
an
role
Based
analysis
molecular
involved,
we
speculated
vit-D,
via
various
signaling
pathways,
complementary
vaccine
efficacy.
Biomedicine & Pharmacotherapy,
Journal Year:
2022,
Volume and Issue:
150, P. 112965 - 112965
Published: April 14, 2022
Main
cause
of
severe
illness
and
death
in
COVID-19
patients
appears
to
be
an
excessive
but
ineffectual
inflammatory
immune
response
that
may
acute
respiratory
distress
syndrome
(ARDS).
Vitamin
D
favour
anti-inflammatory
environment
improve
cytotoxic
against
some
infectious
diseases.
A
multicenter,
single-blind,
prospective,
randomized
clinical
trial
was
approved
with
pneumonia
levels
25-hydroxyvitamin
(25(OH)D)
14.8
ng/ml
(SD:
6.18)
test
antiviral
efficacy,
tolerance
safety
10,000
IU/day
cholecalciferol
(vitamin
The Journal of Clinical Endocrinology & Metabolism,
Journal Year:
2022,
Volume and Issue:
108(5), P. 1034 - 1042
Published: Dec. 8, 2022
Abstract
Objective
This
work
aims
to
review
and
discuss
controversial
topics
in
the
field
of
vitamin
D,
SARS-CoV-2
infection,
COVID-19.
Methods
The
International
Conferences
“Controversies
Vitamin
D”
are
a
series
workshops
that
started
2017
featuring
international
experts
leaders
D
research
clinical
practice.
fifth
annual
conference
was
held
Stresa,
Italy,
September
15
18,
2021.
Evidence
Before
event,
participants
reviewed
available
studies
on
their
assigned
topic,
drafted
related
abstract,
presented
findings
at
time
conference.
Relevant
literature
became
since
also
discussed
within
panel
updated
accordingly.
Consensus
abstracts
had
been
merged
prepare
preliminary
document.
After
presentations,
in-depth
discussions
open
sessions
led
consensus.
document
subsequently
modified
according
up-to-date
inclusion.
Conclusions
There
is
quite
consistent
evidence
for
an
association
between
low
25
OH
(25(OH)D)
levels
poor
COVID-19
outcomes,
despite
heterogeneous
publications
variable
quality.
However,
status
patients
might
reflect
reverse
causality.
supplementation
have
positive
role
prevention.
supporting
beneficial
effect
treatment
decreasing
risk
complications
conflicting.
Conclusive
statements
regarding
this
context
await
high-quality,
randomized
controlled
trials.
Journal of Health Population and Nutrition,
Journal Year:
2024,
Volume and Issue:
43(1)
Published: Jan. 29, 2024
Abstract
Background
and
aims
A
healthy
diet
play
an
important
role
in
the
prevention
even
treatment
of
various
diseases.
Proper
nutrition
plays
boosting
immune
system.
These
include
consumption
macronutrients
such
as
proteins,
lipids,
carbohydrates,
also
micronutrients
including
vitamins.
Here,
we
aimed
to
systematically
review
effects
on
COVID-19.
Methods
We
searched
databases
PubMed,
Scopus,
Embase,
Web
Science
December
23,
2023.
The
records
were
downloaded
into
EndNote
file,
duplicates
removed,
studies
underwent
a
two-phase
screening
process
based
their
title/abstracts
full
texts.
included
articles
screened
inclusion
exclusion
criteria.
English
systematic
reviews
meta-analyses
that
concurred
with
aim
our
study.
selected
assessed
by
Cochrane's
Risk
Bias
Systematic
Reviews
for
quality
check.
data
eligible
extracted
pre-designed
word
table
used
qualitative
synthesis.
Results
total
28
this
Most
have
shown
are
effective
morbidity
mortality
controlling
viral
respiratory
infections
COVID-19
but
some
sometimes
not
severity.
On
other
hand,
calcifediol
was
far
most
successful
agent
reducing
intensive
care
needs
between
studies.
Conclusion
Individuals
without
malnutrition
had
reduced
risk
SARS-CoV-2
infection
severe
disease.
administration
Vitamin
D
is
patients.
Patients
vitamin
deficiency
more
prone
experience
infection,
they
at
higher
morbidities
mortality.
Other
A,
B,
Zinc
showed
benefits
patients
C
no
efficacy
management
intravenous
form
or
high
doses.
Frontiers in Pharmacology,
Journal Year:
2022,
Volume and Issue:
13
Published: July 4, 2022
There
is
now
sufficient
evidence
to
support
that
vitamin
D
deficiency
may
predispose
SARS-CoV-2
infection
and
increase
COVID-19
severity
mortality.
It
has
been
suggested
3
supplementation
be
used
prophylactically
as
an
affordable
safe
strategy
could
added
the
existing
standard
treatment.
This
multicenter,
single-blinded,
prospective
randomized
pilot
clinical
trial
aimed
evaluate
safety,
tolerability,
effectiveness
of
10,000
IU/day
in
comparison
with
2000
cholecalciferol
for
14
days
reduce
duration
85
hospitalized
individuals.
The
median
age
participants
was
65
years
(Interquartile
range
(IQR):
53–74),
most
them
(71%)
were
men
mean
baseline
25-hydroxyvitamin
(25(OH)D)
serum
15
ng/ml
(standard
deviation
(SD):6).
After
supplementation,
25(OH)D
levels
significantly
increased
group
who
received
10,000IU/day
(
p
<
0.0001)
n
=
44)
2,000IU/day
41),
especially
overweight
obese
participants,
higher
dose
well
tolerated.
A
fraction
individuals
our
cohort
(10/85)
developed
acute
respiratory
distress
syndrome
(ARDS).
length
hospital
stay
these
patients
ARDS
different
assigned
4;
7
days;
IQR:
4–13)
6;
27
12–45)
0.04).
Moreover,
inspired
oxygen
reduced
7.6-fold
high
0.049).
In
terms
blood
parameters,
we
did
not
identify
overall
significant
improvements,
although
platelet
count
showed
a
modest
but
difference
those
supplemented
0.0492).
conclusion,
administration
association
care
during
hospitalization
safe,
tolerable,
beneficial,
thereby
helping
improve
prognosis
recovery
process.
Trials,
Journal Year:
2022,
Volume and Issue:
23(1)
Published: Feb. 4, 2022
Abstract
Background
The
coronavirus
disease
19
(COVID-19)
pandemic
has
caused
millions
of
deaths,
and
new
treatments
are
urgently
needed.
Factors
associated
with
a
worse
COVID-19
prognosis
include
old
age
(>
65
years),
ethnicity,
male
sex,
obesity,
people
comorbidities.
Furthermore,
vitamin
D
deficiency
was
reported
as
predictor
poor
in
patients
acute
respiratory
failure
due
to
COVID-19.
According
recent
clinical
case
series,
is
modifiable
risk
factor,
which
the
prospect
reducing
hospital
stay,
intensive
care,
fatal
outcomes.
Vitamin
potent
immunomodulatory
properties,
its
supplementation
might
improve
important
outcomes
critically
ill
D-deficient
patients.
Despite
evidence
that
supports
an
association
between
severity,
there
uncertainty
about
direct
link.
Therefore,
aim
trial
assess
if
high-dose
therapeutic
effect
Methods
As
design,
randomized,
placebo-controlled,
double-blind,
multi-center
approach
chosen
compare
high
single
dose
(140,000
IU)
followed
by
treatment
usual
(TAU)
(VitD
+
TAU)
only
(placebo
deficiency.
Discussion
substitution
should
be
investigated
for
efficacy
safety.
study
test
hypothesis
suffering
from
treated
under
standardized
conditions
will
recover
faster
when
additionally
supplementation.
Latest
studies
suggest
highly
recommended
positively
influence
course
disease.
With
this
randomized
controlled
trial,
contribution
guidelines
shall
made.
Trial
registration
ClinicalTrials.gov
NCT04525820
SNCTP
2020-01401
Nutrients,
Journal Year:
2023,
Volume and Issue:
15(2), P. 451 - 451
Published: Jan. 14, 2023
To
understand
the
susceptibility
to
nutrition-health
misinformation
related
preventing,
treating,
or
mitigating
risk
of
COVID-19
during
initial
lockdowns
around
world,
present
international
web-based
survey
study
(15
April-15
May
2020)
gauged
participants'
(
Trials,
Journal Year:
2023,
Volume and Issue:
24(1)
Published: Feb. 20, 2023
Abstract
Introduction
The
present
study
aimed
to
determine
the
impact
of
vitamin
D
supplementation
(VDs)
on
recovery
delay
among
COVID-19
patients.
Methods
We
performed
a
randomized
controlled
clinical
trial
at
national
containment
center
in
Monastir
(Tunisia),
from
May
August
2020.
Simple
randomization
was
done
1:1
allocation
ratio.
included
patients
aged
more
than
18
years
who
had
confirmed
reverse
transcription-polymerase
chain
reaction
(RT-PCR)
and
remained
positive
14th
day.
intervention
group
received
VDs
(200,000
IU/1
ml
cholecalciferol);
control
placebo
treatment
(physiological
saline
(1
ml)).
measured
cycle
threshold
(Ct)
values
RT-PCR
for
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2).
log-rank
test
hazard
ratios
(HR)
were
calculated.
Results
A
total
117
enrolled.
mean
age
42.7
(SD
14).
Males
represented
55.6%.
median
duration
viral
RNA
conversion
37
days
(95%
confidence
interval
(CI):
29–45.50)
28
CI:
23–39)
(
p
=0.010).
HR
1.58
1.09–2.29,
=0.015).
Ct
revealed
stable
trend
over
time
both
groups.
Conclusion
not
associated
with
shortened
when
given
whom
Trial
registration
This
approved
by
Human
Subjects
Protection
Tunisia
(TN2020-NAT-INS-40)
April
28,
2020,
ClinicalTrial.gov
12,
2021
approval
number
ClinicalTrials.gov
ID:
NCT04883203
.