Effect of Different Cold acclimation Methods on the Exercise Capacity of Mice in Low-Temperature Environments
Xue Geng,
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Zuotian Li,
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Chaoyi Qu
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et al.
Journal of Thermal Biology,
Journal Year:
2025,
Volume and Issue:
127, P. 104050 - 104050
Published: Jan. 1, 2025
Language: Английский
Combined Effects of Spirulina Liquid Extract and Endurance Training on Aerobic Performance and Muscle Metabolism Adaptation in Wistar Rats
Jordi Vignaud,
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Céline Loiseau,
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Martine Côme
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et al.
Nutrients,
Journal Year:
2025,
Volume and Issue:
17(2), P. 283 - 283
Published: Jan. 14, 2025
Background:
Physical
activity,
such
as
running,
protects
against
cardiovascular
disease
and
obesity
but
can
induce
oxidative
stress.
Athletes
often
consume
antioxidants
to
counteract
the
overproduction
of
reactive
oxygen
nitrogen
species
during
exercise.
Spirulina,
particularly
its
phycocyanin
content,
activates
Nrf2
pathway,
stimulating
antioxidant
responses.
Studies
show
that
enhances
defenses
reduces
inflammation,
potentially
improving
muscle
adaptation
recovery.
This
study
evaluates
a
Spirulina
liquid
extract
(SLE)
supplementation
endurance
training,
hypothesizing
improves
oxidant
status
performance
in
soleus
extensor
digitorum
longus
muscles.
Methods:
Three-week-old
male
Wistar
rats
were
divided
into
four
groups:
sedentary
control
group
(C),
supplemented
with
SLE
(SP),
an
training
(T),
(SPT).
After
8
weeks
treadmill
blood
collected.
Biochemical
parameters
gene
expression
analyses
performed
assess
effects
supplementation.
Results:
The
maximal
aerobic
speed
improved
significantly
SPT
group.
Plasma
lipid
profiles
showed
reduction
triglyceridemia,
cholesterolemia,
atherogenic
index
trained
groups,
especially
Muscle
malondialdehyde
levels
decreased
compared
T.
Gene
analysis
revealed
upregulation
mitochondrial
biogenesis
genes
both
muscles,
differences
between
groups
for
related
glycogen
storage
β-oxidation.
Conclusions:
demonstrated
enhanced
exercise
promoted
molecular
adaptations.
These
findings
suggest
promising
functional
food
supplement
athletes,
optimizing
recovery
performance.
Language: Английский
Collagen type III resists UVB induced photoaging of HaCaT cells by regulating mTOR signaling pathway
Helei Liu,
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Hao Li,
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Pengwei Zhao
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et al.
Journal of Photochemistry and Photobiology B Biology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 113153 - 113153
Published: April 1, 2025
Language: Английский
Branched-Chain Amino Acids and Inflammation Management in Endurance Sports: Molecular Mechanisms and Practical Implications
Miaomiao Xu,
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Danhong Hu,
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Xiaoguang Liu
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et al.
Nutrients,
Journal Year:
2025,
Volume and Issue:
17(8), P. 1335 - 1335
Published: April 12, 2025
Endurance
athletes
frequently
experience
muscle
damage
and
inflammation
due
to
prolonged,
high-intensity
exercise,
which
can
impair
recovery
hinder
performance.
This
review
examines
the
role
of
branched-chain
amino
acid
(BCAA)
supplementation
in
repair,
modulation,
immune
regulation.
BCAAs—particularly
leucine
isoleucine—activate
key
molecular
pathways,
including
mechanistic
target
rapamycin
(mTOR)
AMP-activated
protein
kinase
(AMPK),
promote
synthesis
enhance
energy
metabolism.
They
also
attenuate
inflammatory
responses
by
modulating
nuclear
factor
kappa-light-chain-enhancer
activated
B
cells
(NF-κB),
mitogen-activated
(MAPK),
Janus
kinase/signal
transducer
activator
transcription
(JAK/STAT)
reducing
levels
tumor
necrosis
factor-alpha
(TNF-α)
interleukin-6
(IL-6).
In
addition,
BCAAs
influence
function
via
complex
1
(mTORC1)
signaling,
autophagy,
mitigate
exercise-induced
apoptosis.
These
effects
result
reduced
soreness,
lower
biomarker
(e.g.,
creatine
kinase,
lactate
dehydrogenase),
improved
recovery.
Practical
considerations
such
as
optimal
dosage,
timing,
co-supplementation
with
carbohydrates,
proteins,
or
omega-3s
are
addressed.
While
show
promise
a
nutritional
strategy
for
enhancing
controlling
endurance
athletes,
further
research
is
needed
refine
personalized
protocols
clarify
long-term
effects.
Language: Английский