Key result
Chronic intermittent hypoxia boosts ventilatory long-term facilitation by ~64% for three days in awake rats.
Why the study?
Does chronic intermittent hypoxia enhance ventilatory long-term facilitation in awake rats?
Does chronic intermittent hypoxia enhance ventilatory long-term facilitation in awake rats?
Absolute Event Rate: 29.1% vs 17.7%
Chronic intermittent hypoxia enhances ventilatory long-term facilitation in conscious rats, with effects persisting for at least 3 days.
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Extends rodent evidence for ventilatory plasticity after intermittent hypoxia; leaves open translation to human cardiorespiratory disorders.
Zhang et al. (2003) studied Healthy awake rats. Chronic intermittent hypoxia (CIH) vs. Baseline (before CIH treatment) was evaluated on Ventilatory long-term facilitation (LTF) elicited by 10 episodes of 5 min 12% O2. Chronic intermittent hypoxia enhanced ventilatory long-term facilitation in awake rats, increasing LTF magnitude from 17.7% to 29.1% and prolonging its duration for at least 3 days.
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