Key result
Prolonged exposure to high altitude was associated with enhanced occipital lobe functional connectivity and decreased frontal lobe connectivity across varying durations of residency (p<0.05).
Why the study?
The study aimed to investigate the effects of prolonged exposure to hypobaric hypoxia at high altitude on resting-state brain network functional connectivity and compensatory brain adaptations across varying durations of residency.
Does prolonged exposure to hypobaric hypoxia at high altitude alter resting-state brain network functional connectivity?
Comparison
High- vs low-altitude groups (study I) and duration of high-altitude residency (1–2 vs 8–10 vs 18–20 years, study II)
Design
Observational comparative study
Authors
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May reflect adaptive brain changes in chronic hypoxia; hypothesis-generating and should not yet change practice.
Observational (n=160)
Does prolonged exposure to hypobaric hypoxia at high altitude alter resting-state brain network functional connectivity?
p-value: p=<0.05
Prolonged high-altitude hypoxia exposure leads to compensatory enhancement of occipital lobe functional connectivity and reduction in frontal lobe connectivity over time.
Ren et al. (2024) conducted an observational in Hypoxia exposure at high altitude (n=160). Prolonged exposure to hypobaric hypoxia at high altitude vs. Low altitude residency or shorter duration of high altitude residency was evaluated on Resting-state brain network functional connectivity (p=<0.05). Prolonged exposure to high altitude was associated with enhanced occipital lobe functional connectivity and decreased frontal lobe connectivity across varying durations of residency (p<0.05).
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