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首页> 外文期刊>Journal of Comparative Physiology, B. Biochemical, Systemic, and Environmental Physiology >Body temperatures of hibernating little brown bats reveal pronounced behavioural activity during deep torpor and suggest a fever response during white-nose syndrome
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Body temperatures of hibernating little brown bats reveal pronounced behavioural activity during deep torpor and suggest a fever response during white-nose syndrome

机译：冬眠的小棕色蝙蝠的身体温度揭示了在深层扭力期间明显的行为活动，并在白鼻综合征期间提出了发烧反应

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Hibernating animals use torpor [reduced body temperature (T (b)) and metabolic rate] to reduce energy expenditure during winter. Periodic arousals to normal T (b) are energetically expensive, so hibernators trade off arousal benefits against energetic costs. This is especially important for bats with white-nose syndrome (WNS), a fungal disease causing increased arousal frequency. Little brown bats (Myotis lucifugus) with WNS show upregulation of endogenous pyrogens and sickness behaviour. Therefore, we hypothesized that WNS should cause a fever response characterized by elevated T (b). Hibernators could also accrue some benefits of arousals with minimal T (b) increase, thus avoiding full arousal costs. We compared skin temperature (T (sk)) of captive Myotis lucifugus inoculated with the WNS-causing fungus to T (sk) of sham-inoculated controls. Infected bats re-warmed to higher T (sk) during arousals which is consistent with a fever response. Torpid T (sk) did not differ. During what we term "cold arousals", bats exhibited movement following T (sk) increases of only 2.2 +/- 0.3 A degrees C, compared to & 20 A degrees C increases during normal arousals. Cold arousals occurred in both infected and control bats, suggesting they are not a pathophysiological consequence of WNS. Fever responses are energetically costly and could exacerbate energy limitation and premature fat depletion for bats with WNS. Cold arousals could represent an energy-saving mechanism for both healthy and WNS-affected bats when complete arousals are unnecessary or too costly. A few cold arousals were observed mid-hibernation, typically in response to disturbances. Cold arousals may, therefore, represent a voluntary restriction of arousal temperature instead of loss of thermoregulatory control.
机译：冬眠动物使用Torpor [减少体温（T（B））和代谢率]以减少冬季能源消耗。定期唤醒到正常的T（b）是充满活力的昂贵，因此冬眠者对充满活力的成本进行唤醒效益。这对于具有白鼻综合征（WNS）的蝙蝠尤为重要，这种真菌疾病导致唤起频率增加。 Little Brown Bats（Myotis Lucifugus）与WNS显示出上述内源性猪肉和疾病行为的上调。因此，我们假设WNS应导致具有升高的T（b）的发烧响应。冬眠者还可以用最小的T（b）增加唤起唤醒的一些好处，从而避免了完全唤醒成本。我们将Creative Myotis Lucifugus的皮肤温度（T（SK））与WNS导致真菌进行了分接接种对照的T（SK）。感染的蝙蝠在唤醒期间重新温热至更高的T（SK），这与发热反应一致。 Torpid T（SK）没有差异。在我们术语“冷唤醒”中，与＆amp的相比，蝙蝠表现出仅2.2 +/- 0.3℃的T（SK）增加。在正常唤醒期间，20℃增加。感染和控制蝙蝠发生冷唤醒，表明它们不是WNS的病理生理结果。发烧响应昂贵昂贵，可加剧与WNS的蝙蝠的能量限制和过早的脂肪消耗。当完全唤醒是不必要的或太昂贵时，冷唤醒器可以代表健康和受影响的蝙蝠的节能机制。观察几种冷唤醒人，通常是为了应对干扰。因此，冷唤醒可能代表唤起温度的自愿限制而不是热疗法对照的损失。

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